Abstract: A screw driving machine in which a screw having a head is screwed into a work, includes: a body; a nose section positioned toward the work with respect to the body, the nose section holding the screw to be driven; a hammering mechanism accommodated in the body, for hammering the screw into the work until the head of the screw held above the work; a screwing mechanism for screwing the screw hammered into the work; a contact arm slidable with respect to the nose section, the contact arm being pulled in toward the body when the contact arm is pushed against the work; and a locking mechanism for prohibiting the contact arm from sliding in its half way when the contact arm is pushed against the work, and for releasing the contact arm from locking after the hammering mechanism hammers the screw into the work.

Abstract: A screw feed and driver assembly which may constitute a part of a screw driving tool of the type having a prime mover, a speed and torque determining gear assembly and a clutch; which can constitute an accessory for a clutch containing manual feed power screw driver; and which, combined with a clutch, can comprise an accessory for a standard manual power drill. The screw feed and driver assembly comprises a feed housing with a slide body mounted therein and shiftable between forward and rearward positions. The slide body is biased to its forward position. The slide body receives a strip bearing screws. A contact foot is mounted on the slide body and shifts the slide body rearwardly when pressed against a workpiece. A screw driver, affixed to the clutch, extends into the slide body. The slide body contains a pawl and feed sprocket assembly. The sprocket engages notches in one edge of the screw bearing strip.

Abstract: Apparatus for driving fastening elements (9), such as nails, bolts, screws, clips and alike, includes a magazine (3) extending laterally from a guide (1) from which the fastening elements are driven. A transport slide (4) is mounted on the magazine (3). A guide channel (31) in the magazine (3) opens into the guide (1) and is open at its opposite end located at a free end of the magazine. The transport slide (4) is movable along the magazine (3) towards its free end into a release position and in the release position can be fixed against movement toward the guide (1). In the release position, the transport slide (4) has a transport latch (41), and a retaining element (6) is positioned on the magazine (3), and both are displaced out of the clear opening in the guide channel (31).

Abstract: A power screwdriver has a tool body, a motor, a drive member rotatably driven by the motor, a spindle rotatably mounted on the tool body and a clutch mechanism provided between the drive member and the spindle. The clutch mechanism includes an engaging clutch and a synchronizer device. The synchronizer device is operable to rotate the spindle at a predetermined speed that is substantially equal to or less than the rotational speed of the drive member, prior to connection of the engaging clutch.

Abstract: A screwdriver assembly to drive a threaded fastener carrying a washer thereon spaced axially from a head of the fastener towards a tip of the fastener. The screwdriver assembly comprises a guideway to receive a fastener coaxially therein, a washer abutment surface disposed about the guideway to engage a washer carried on a fastener received in the guideway to assist in axially locating the fastener coaxially within the guideway and an elongate rotatable driver shaft having at a forward end a bit member. The driver shaft is reciprocally movable axially in the guideway to engage the fastener with the bit member and drive the fastener axially forwardly from the guideway into a workpiece.

Abstract: A screwdriver for driving collated screws including a slide body coupled to a housing for reciprocal displacement in a cycle including a retraction stroke and an extension stroke, a lever pivotably mounted to the slide body carries at one end a cam pin received in a cam slot in the housing with the other end of the lever advancing succssive screws in the screwstrip, the cam slot having first and second camming surfaces for selective engagement by the cam pin to vary the relative positioning of the lever to be different for the same positions of the slide body in the housing in the retraction strokes than in the extension stroke.

Abstract: A successive screw feeder driver includes a grip handle, a rotating mechanism provided on the upper side of the grip handle, a screw driving bit attached removably to the front portion of the rotating mechanism, a reduction mechanism formed above the rotating mechanism and a drive unit for rotating the bit. The drive unit is connected to the reduction mechanism and is positioned behind and above the grip handle. A screw feed mechanism body is mounted on the front portion of the grip handle and is slidable in the longitudinal direction with the bit being inserted rotatably into the screw feed mechanism body. A supporting and pushing portion extends from the upper portion of the rear end of the grip handle to a lower surface of the housing for the drive unit beyond the position where a virtual rotation line extending rearward of the axis of the bit is formed. A screw feed mechanism is provided in the screw feed mechanism body for feeding screws successively to a screw driving position.

Abstract: This invention provides a driver attachment for a collated screwstrip in which a slide body is slidable in a housing parallel a longitudinal axis about which drive shaft is rotatable. The slide body has a nose portion. A screw feed activation mechanism coupled between the housing and the slide body translates relative sliding movement and positioning of the slide body relative the housing. The nose portion includes a channel to guide a collated screwstrip generally transversely to the longitudinal axis of the drive shaft. The nose portion includes a guide mechanism to locate each successive screw advanced through the channel into axial alignment with the drive shaft for engagement therewith. A strip carrying screws is advanced into the guideway via an entranceway and the spent strip from which the screws have been driven exits from the guideway via an exitway which encircles the spent strip.

Abstract: Apparatus for driving fastening elements (9), such as nails, bolts, clips and the like, into a receiving material includes a magazine (3) extending laterally outwardly from a guide (1). The magazine (3) holds a carrying strip (10) for the fastening elements (9) and a transport slide (8) which, in cooperation with the magazine, can be shifted parallel to the driving direction of the apparatus. The magazine (3) has a housing (31) and a guide channel (37) opening into a transport channel (11) in the guide (1). The guide channel (37) is formed by two laterally spaced guide rails (5, 6) each with a surface facing the other and profiled with tooth-shaped projections having tooth flanks of different lengths with the flanks facing the transport channel (11) being shorter. A first guide rail (5) can be displaced away from a second guide rail (6) parallel to the length of the guide channel (37) by the transport slide (8). The transport slide (8) interacts with a control cam (53) located on the first guide rail (5).

Abstract: To provide a tag attaching apparatus including a hollow needle having an expanding slot formed from the front end to the rear end of the needle at its side face in the body of the tag attaching apparatus. A needle cover having a groove for storing the hollow needle at its front and a groove for supporting a tag pin group inserted into a tag pin group guide groove at its back is set to the head of the tag attaching apparatus body enclosed by a transverse groove provided for the tag attaching apparatus body so as to communicate with the expanding slot and a tag pin group guide groove provided for the tag attaching apparatus body so as to intersect the transverse groove so that the needle cover can be vertically pivoted.

Abstract: A driver attachment for driving screws in a collated screwstrip. The attachment having a housing and a slide body slidable axially relative to the housing with the slide body carrying a shuttle slidable transversely relative the slide body. A lever is coupled at one end to the housing and at another end to the shuttle such that reciprocal movement of the housing and slide body axially reciprocally cycles the shuttle transversely. The slide body preferably carries a bearing member which when the slide body approaches a fully extended postion, engages the lever to assist the lever in drawing the shuttle inwardly to advance the screwstrip.

Abstract: A nail guide device of a box nailing machine in which a nail connected with another nail by a tying member is driven by a drive rod, the nail guide device includes: a nail magazine for accommodating the nails connected with each other; a nose for guiding the driver rod; a nail guide plate for connecting the nail magazine with the nose, including, a lower end portion extending downward to a position lower than a tip of the nail, and a guide groove provided in an upper portion of one face of the nail guide plate and extending over the entire length of the guide plate; and a nail cover rotatably provided opposite to the face on which the guide groove is formed, the nail cover and the guide plate forming a nail path, wherein the guide groove is engaged with a side portion of the head of the nail to guide the nail from the nail magazine to the nose; and a flange protruding to the nail path formed in the lower end portion of the nail guide plate so as to shield the tip of the nail.

Abstract: A cartridge used for an electric stapler is provided which comprises a cartridge body (701) containing a pile of sheet-staples (S), a delivering portion (710) mounted on an upper end of a front wall (701F) of the cartridge body (701) and having a delivery path (711) along which the sheet-staple (S) is delivered, and a driving-out portion (720) mounted in a front end of the delivering portion (710). A reciprocating driver enters the driven-out portion (720), so that a U-shaped staple is driven from the driven-out portion (720). The driver enters the driving-out portion 720 from above the delivery path (711).

Abstract: A driver for fasteners, and particularly, a power screwdriver is described which is adapted to drive screws having different diameters. The power screwdriver has a removable guide tube and complementary drive shaft. The guide tube is sized to the diameter of one size of screw. The complementary removable drive shaft is sized to be guided in the guide shaft, reciprocally movable therein to engage and guide a screw located in the guide tube. By removal of one pair of guide tube and complementary drive shaft and replacement with another pair of guide tube and complementary drive shaft adapted for use with screws having a different head diameter, the driver is adapted for driving screws of different head diameters.

Abstract: A powder-actuated tool cartridge clip comprising a generally elongate body member having major and minor dimensions, a plurality of explosive charge retaining receptacles arranged in series and an indexing member both disposed along the major dimension of the elongate body member. The cartridge clip is disposable in a feed channel of a powder-actuated tool of the type having an indexing mechanism for engaging and advancing the cartridge clip through the feed channel so as to sequentially position explosive charges retained at the cartridge clip in a discharge position. The cartridge clip also includes an indicator mark disposed along the elongate body member for indicating that a last remaining explosive charge retained in the cartridge clip is positioned at the discharge position or has been discharged when the portion of the cartridge clip having discharged explosive charges protrudes from the powder-actuated tool.

Abstract: A fastener driving tool capable of locating a preformed hole in a first workpiece and driving a nail therethrough and into a second workpiece to attach the first workpiece to the second workpiece. The tool comprises a body having a main portion and a handle portion, a guide body, a drive track in the guide body, a driver axially shiftable in the drive track, a fastener containing magazine, a magazine cover, a manual trigger, and a trigger enabling safety. The magazine cover is supported by the guide body and the handle portion of the tool and contains the magazine. The magazine communicates with the drive track and is supported by a slide captively mounted on the guide body and axially shiftable therealong.

Abstract: A fastener driving tool includes a fastener driving device for driving fasteners one after another. The fasteners are connected in series to each other to form a strip of fasteners. A fastener feeding device is provided for feeding the fasteners one after another to a driving position by the fastener driving device. The fastener feeding device includes a first claw and a second claw positioned forwardly of the first claw in the feeding direction of the fasteners. A drive device is provided for reciprocally moving each of the first and second claws between a frontmost position and a rearmost position. A stroke adjusting device is operable to provide difference between the stroke of movement of the first claw and the stroke of movement of the second claw, so that the stroke of movement of the second claw is smaller than the stroke of movement of the first claw.

Abstract: A pawl-type assembly for pulling a coiled strip of nails form a canister-type magazine of a nail driving tool and introducing the forwardmost nail of the strip into the drive track of the tool to be driven by the tool driver into a workpiece. The guide body of the tool defines the drive track and has a fixed wall and an openable wall forming there between a passage for the strip of nails from the canister-type magazine to the drive track. The pawl is shiftable by the piston rod of an air cylinder between a rearward position wherein it engages a nail near the forwardmost nail of the strip and a forward position wherein the nearby forwardmost nail of the strip is located in the drive track ready to be driven. The pawl is provided with ledge-like surfaces which, when the pawl is in its forwardmost position, engage the fixed wall of the guide body in such a way as to prevent pawl displacement during the fastener driving portion of the tool cycle.

Abstract: The disclosure presents a guide mechanism for a nailing machine in which series-connected nails are fed from a magazine to a nose portion and the foremost nail of the series-connected nails is driven from a nail ejecting outlet of the nose portion by a driver.

Abstract: A staple driving system for driving insulated staples to secure an object to a base which includes staples having a generally U-shape including parallel legs with free end portions. A molded body formed of insulating material is located on the free end portions of each staple and is slidable with respect thereto when the staple is driven. The molded body has a generally semi-circular recess formed therein between the legs of the staple for surrounding and engaging a cable, wire, or the like. The molded insulating body of one staple is connected by frangible connections to an adjacent molded body of an adjacent staple so that the staples can be shipped and used in a strip. A staple gun having a magazine formed to receive and guide the insulated staples is also provided along with a pusher shaped to cooperate with guide ribs on the magazine while engaging the molded body and the bight of the last staple of a strip in the magazine to accurately guide the staples in the magazine during operation of the system.

Abstract: An electric stapler is provided which comprises a driving plate (7) for driving out a staple from a driving position while reciprocating, a delivering mechanism for delivering a sheet-staple (11) to the driving position interrelatedly with a reciprocating motion of the driving plate, a working piece (24) which is rotated by a push given by a staple occupying the front row of the sheet-staple (11) when the front staple reaches the driving position, and a sensor (25) for detecting the rotation of the working piece (24). The driving plate (7) returns to its initial position in accordance with a detection signal output by the sensor (25).

Abstract: A driver for fasteners, and particularly, a power screwdriver is described which is adapted to drive screws having different diameters. The power screwdriver has a removable guide tube and complementary drive shaft. The guide tube is sized to the diameter of one size of screw. The complementary removable drive shaft is sized to be guided in the guide shaft, reciprocally movable therein to engage and guide a screw located in the guide tube. By removal of one pair of guide tube and complementary drive shaft and replacement with another pair of guide tube and complementary drive shaft adapted for use with screws having a different head diameter, the driver is adapted for driving screws of different head diameters.

Abstract: A canister-type magazine for the class of fastener driving tool which uses a coil of tandemly arranged fasteners. The magazine comprises a substantially cylindrical body having a top, a bottom and a side wall, and is made up of a fixed body part and a movable body part. The fixed body part has a forward end attached to the tool fastener feed mechanism and a rearward end attached to the tool handle. The fixed body part comprises the top and a segment of the side wall of the magazine. The movable body part has forward and rearward ends and comprises the bottom, the fastener coil support surface, and the remainder of the side wall of the magazine. The movable body part is pivotally affixed at its rearward end to a hinge member. The hinge member, in turn, is adjustably mounted in a hinge member support constituting a portion of the rearward end of the fixed body part.

Abstract: A housing including a handle portion and drive portion is provided. A power operated drive in the housing drive portion is operable to be selectively moved through a drive stroke and a return stroke. A nosepiece and magazine assembly are carried by the housing including cooperating fixed and movable structure defining an elongated drive track, a feed track leading laterally into the drive track, and a coil container leading into the feed track. A fastener driving element is slidably mounted in the drive track and operatively connected with the power operated drive so as to drive a leading fastener fed into the drive track from the feed track outwardly of the drive track. The unitary movable structure is mounted for pivotal movement when a fastener package has been depleted from a closed operating position in cooperating relation with the fixed structure into an open loading position. An actuating mechanism is provided for actuating the power operated drive to move through an operating cycle.

Abstract: A drive link is coupled to an end of a ratchet wheel, and the other end of the drive link is slidably arranged in a guide hole formed in a side wall of a nose holder. The nose holder has a control plate rotatably attached to the other end of the drive link. The control plate is urged by a spring so as to engage with the other end of the drive link with such a strength as to temporarily stop the movement of the drive link when the drive link is in the course of retreating together with the nose portion. The other end of the drive link is designed to engage with a front end of the guide hole while the nose portion is in the course of advancing from a retreat end. By causing the ratchet wheel to make a forward/backward rotation based on stoppage of the drive link while the nose portion is in the course of retreating and while the nose portion is in the course of advancing, a feed wheel is rotated intermittently in a coupled screw feed direction.

Abstract: A canister-type magazine for a fastener driving tool using a coil of tandemly arranged fasteners. The magazine comprises a substantially cylindrical body having a top, a bottom and side walls. The magazine is openable, providing access to the interior thereof. A cylindrical magazine post extends upwardly from the center of the magazine bottom. A pair of latch members are located in diametric openings in the magazine post near the upper end thereof. The latch members are shiftable between a first position wherein they extend beyond the peripheral surface of the magazine post and a second position wherein they are within the confines of the peripheral surface of the magazine post. The latch members are biased to their first position. A fastener coil supporting platform is provided having a hollow center post with an interior diameter sized to slidingly receive the magazine post. The platform post has at least two pairs of diametric openings in its cylindrical side wall.

Abstract: A magazine for a nail-driving tool, which may be pneumatically powered or combustion-powered, is arranged to store a plurality of plural nail strips in side-by-side relationship. A spring-biased mechanism is used to bias the stored strips toward a side rail. Being movable along a frame between an advanced position and a retracted position, a feeding member in the retracted position engages the shank of an endmost nail of the stored strip nearest to the side rail. A negator spring mechanism biasing the feeding member toward the advanced position includes a leaf spring arranged to be longitudinally pulled between the nail heads of the stored ship nearest to the side rail and the nail heads of the next strip when the feeding member is moved from the advanced position into the retracted position.

Abstract: A fastener driving tool capable of locating a preformed hole in a first workpiece, aligning the drive track of the tool with the hole, and thereafter driving a fastener, such as a nail, through the hole and into a second workpiece to attach the first workpiece to the second workpiece. The tool has a magazine comprising an outer portion affixed to the tool and its drive track containing guide body, and an inner portion containing a strip of nails and pivoted at its rearward end to the rearward end of the outer magazine portion. The inner magazine portion is pivotable within the outer magazine portion between a first position wherein the forwardmost nail of the strip extends well beyond the nose of the guide body serving as a probe to locate and enter the workpiece hole, and a second position wherein the forwardmost nail of the strip is still engaged in the workpiece hole and is properly aligned in the drive track to be driven by the tool driver through the first workpiece hole and into the second workpiece.

Abstract: This invention provides a driver attachment for a collated screwstrip in which a slide body is slidable in a housing parallel a longitudinal axis about which drive shaft is rotatable. The slide body has a rear portion and a removable nose portion. The housing and rear portion of the slide body form an integral part effectively permanently assembled and including a screw feed activation mechanism coupled between the housing and rear portion and which translates relative sliding movement and positioning of the rear portion of the slide body relative the housing. The nose portion is removable from the rear portion for ease of replacement with other nose portions adapted for use with the same or different sized screwstrips and/or screws. The nose portion includes a channel to guide a collated screwstrip generally transversely to the longitudinal axis of the drive shaft.

Abstract: A cartridge for an electric stapler comprises an inner cartridge for holding a plurality of staple sheets in multi-layered form, each of the stapler sheets being formed by sticking straight staples together in sheet-like form, and an outer cartridge associated with the inner cartridge and detachably mounted on the electric stapler. The outer cartridge includes an accommodating section for accommodating the inner cartridge, a staple passage formed so as to extend from a lower end of the accommodating section, a staple receiving stand disposed at a front end of the staple passage, a pusher for pushing legs of a staple forward, the staple being formed into a square U-shape on the staple receiving stand, and a drive channel, arranged at the front of the staple passage, for receiving the formed staple pushed by the pusher. A driver plate of the main body of the stapler drives the formed staple in a direction orthogonal to the staple passage.

Abstract: A device with automatic feeder, for driving ribbon-mounted screws comprising a guide in front of which a box-like body is mounted so that it can slide longitudinally; moreover the body has a shallow seat for the sliding of the ribbon which is connected to a longitudinal hole for positioning the first screw and for the longitudinal sliding of the shank of the screwing tool and can be closed, in an upward region, by a sort of lid which is pivoted to the body and can be locked by means of a sliding bolt in the seat covering position; the seat is crossed by a lower tooth for retaining the first screw which is associated with a lever system; and a spring latch is mounted in the lid and is actuated so as to oscillate.

Abstract: A magazine for use with a fastener driving tool is adapted for feeding a fastener stick having fasteners connected in series into a driver guide. The magazine has a magazine body and a slide door. The magazine body has a bottom defining a guide surface for the fastener stick. The slide door is mounted on the magazine body and is slidable in a feeding direction of the fastener stick relative to the magazine body between a closed position and an open position. The slide door in the closed position and the bottom of said magazine body cooperate to define a fastener storing chamber for storing the fastener stick therebetween. The fastener storing chamber is opened to the outside when the slide door is at the open position. A pusher serves to push the fastener stick in the fastener storing chamber in the fastener feeding direction.

Abstract: An object of the present invention is to provide a staple cartridge usable for a motor driven stapler wherein the staple cartridge can repeatedly be used to substantially reduce the quantity of disposable waste material, thereby saving a useful resource. The bottom surface of a staple cartridge 11 is open so as to allow the staple cartridge 11 to be detachably charged in a staple sheet holder 13. A predetermined number of staple sheets 2 are received in the staple sheet holder 13 in the laminated state and in the form of a staple sheet pack 12 bounded by a band 14. Engagement holes 23 are formed on the staple sheet holder 13. As the staple sheet pack 12 is inserted into the staple cartridge 11 through an open portion on the bottom surface of the staple cartridge 11, the engagement pawls 24a of a lock lever 24 are brought in engagement with the engagement holes 23 so as to lock the staple sheet pack 12 to be firmly held in the staple cartridge 11.

Abstract: A device for supporting a plurality of nails in a coupled fashion for automatically feeding such nails from a container comprising: a housing for supporting and feeding nails therefrom, the housing having a generally circular central portion and a linear portion extending therefrom at a tangent, the housing being provided with a spiral slot along the length thereof from the exterior end of the tangential portion to adjacent the center of the circular portion, the cross-section of the device of the spiralling portion of the device including a generally rectangular section with a vertical height essentially equal to the vertical height of the nails to be supported and a width substantially equal to the diameter of the nails to be supported, the cross-section also including an upper transverse slot formed as an extension of the rectangular section at the upper end thereof for supporting the head of nails to be transported, the device including upper and lower side rails extending outwardly from the end of the li

Abstract: A driver for fasteners, and particularly, a power screwdriver is described which is adapted to drive screws having different diameters. The power screwdriver has a removable guide tube and complementary drive shaft. The guide tube is sized to the diameter of one size of screw. The complementary removable drive shaft is sized to be guided in the guide shaft, reciprocally movable therein to engage and guide a screw located in the guide tube. By removal of one pair of guide tube and complementary drive shaft and repalcement with another pair of guide tube and complementary drive shaft adapted for use with screws having a different head diameter, the driver is adapted for driving screws of different head diameters.

Abstract: An electric stapler comprises a cartridge and an electric stapler main body on which the cartridge is detachably mounted. The cartridge integrally including: an accommodating section for accommodating a plurality of staple sheets in multi-layered form, each of the staple sheets being formed by sticking straight staples together in sheet-like form; a staple passage extending from a lower end of the accommodating section; a pusher for pushing legs of a staple forward, the staple being formed into a square U-shape at a front end of the staple passage; and a drive channel, arranged at the front of the staple passage, for receiving the formed staple pushed by the pusher.

Abstract: A tag attachment apparatus includes a hollow needle mounted on a hollow pistol shaped housing. The housing includes a fastener feeding mechanism for feeding fasteners one at a time into the hollow needle. The fastners used with the apparatus each include a bar portion and a head portion which are connected by an elongated filament portion. A plunger mechanism is provided for driving the fasteners through the needle. The plunger mechanism is operated by an electric motor which is connected to a pair of rechargeable batteries mounted in the handle portion of the housing. A recharger circuit is also mounted in the handle of the housing for periodic recharging of the batteries.

Abstract: Assembly tool for detaching and applying components lined up continuously and attached to a belt or tape at an assembly position in which one component after the other is successively separated from the tape and ejected, in which the tape is placed over an encircling continuous conveyor belt which positively engages the tape and entrains it with the advance of the conveyor belt, the conveyor passing together with the equipped tape through a driving-in region for gripping the tape prior to the assembly position and a driving-out region for carrying off the remaining tape after the assembly position and being deflected round the assembly position substantially in the form of a V at the assembly position.

Abstract: In a fastener driving apparatus including a nose piece assembly defining an elongated drive track receiving a fastener driving element therein movable through an operating cycle including a drive stroke and return stroke, and a fastener feeding track communicating laterally with the drive track, an improved mechanism for feeding fasteners from a fastener package into a position to be driven by the fastener driving element during the drive stroke thereof is provided. The feeding mechanism includes an actuating mechanism mounted for movement through an operating cycle including (1) an operative stroke in a direction along the fastener feeding track toward the drive track for feeding fasteners to the drive track and (2) a return stroke.

Abstract: An electric stapler is provided including a body frame; a magazine fixedly secured to the body frame; a cartridge housing a plurality of staple sheets, each of the staple sheets including straight staples conjoined together in stacked state, the cartridge being coupled to the magazine. A driver is provided for driving a staple out of one of the staple sheets; the driver being supported by the magazine so that the driver can be rectilinearly reciprocated. A clinching member is provided for clinching the staple driven out by the driver. The clinching member is supported by the body frame so that the clinching member is located to face the driver and can be reciprocated. A member is provided for repeatedly moving the driver and clinching member toward and away from each other in mutually opposite directions nearly simultaneously, so that as the driver is moved downwardly to drive the staple into material to be stapled, the clinching member moves upwardly in supporting relation with the material.

Abstract: A driver for fasteners, and particularly, a power screwdriver is described which is adapted to drive screws having different diameters. The power screwdriver has a removable guide tube and a complementary drive shaft. The guide tube is sized to the diameter of one size of screw. The complementary removable drive shaft is sized to be guided in the guide shaft, reciprocally movable therein to engage and guide a screw located in the guide tube. By removal of one pair of guide tube and complementary drive shaft and replacement with another pair of guide tube and complementary drive shaft adapted for use with screws having a different head diameter, the driver is adapted for driving screws of different head diameters.

Abstract: A nailing machine includes a nail feeding channel member having therein a nail feeding channel connected to a nail guide channel formed in a driver guide. A driver is reciprocally driven through the nail guide channel for driving nails of a nail-carrying strip supplied by a nail feeding mechanism from a magazine through the nail feeding channel. A door member is mounted on the nail feeding channel member for closing and opening the nail feeding channel. An engaging pawl and a strip-retaining pawl are mounted on the door member. The engaging pawl is operable to engage one of engaging holes of the nail-carrying strip set in the nail feeding channel, as the door member is closed, for preventing movement of the nail-carrying strip in a direction opposite to the feeding direction of the nail-carrying strip.

Abstract: An apparatus for the production of a device for detaching portions of a planer workpiece of cardboard used in the folding box industry. The workpiece contains at least one blank for a folding box and adjoining waste pieces which are removed from the plane of the workpiece by the device. The device is formed of a plurality of breaking out pins inserted into a breaking out plate, the pins corresponding in position to the positions of the waste pieces of the blank. The apparatus includes a pressing element for pressing each breaking out pin into the breaking out plate and a magazine device for feeding the pins to the pressing element. A guide piece is associated with the magazine device and the pressing element which acts to guide each pin from the magazine. The guide piece is provided in the feed path of the of the magazine and is provided with a recess for receiving each individual breaking out pin.

Abstract: The invention is a semiautomatic stapler for affixing a tag from a roll of tags onto a surface. The stapler includes a rotatable pivot indexing arm for moving the tag into position for affixing onto the surface. A cylinder may be provided for rotating the indexing arm, and an index stop pin is provided for limiting pivotable movement of the rotatable pivot indexing arm. In this way, tags of various lengths may be affixed by the stapler. The roll of tags is held within the automatic stapler.

Abstract: A fastener driving tool is provided with replaceable wear guards which provide for three point support of the tool on its side. The three point support system prevents wear on the handle casting and the magazine housing when the tool is dragged across abrasive surfaces, such as roofing surfaces. The fastener driving tool is also provided with a muffler incorporated into a low profile top cap which reduces the overall profile of the tool. A diverter plate is also provided to discharge the exhaust downwardly in front of the tool in a direction more ergonomically pleasing to end users. The fastener driving tool also includes an improved fastener feed system which minimizes nail jams and allows for axial alignment of the driver blade with respect to the fasteners for collated fastener systems wherein the fastener heads are relatively large.

Abstract: An Electric stapler of the type in which a magazine is unmovably fixed, characterized in that the magazine is secured to a body frame; a driver for driving out a staple is supported by the magazine so that the driver can be rectilinearly reciprocated; a clincher, which receives the staple driven out by the driver, is supported by the frame so that the clincher is located to face the driver and can be reciprocated on the production of the direction of the reciprocation of the driver; the driver is coupled to drive links at one end of each thereof; the links are supported by the frame so that the links are swingable; the clincher is coupled to a clincher lever at one end thereof; the lever is supported by the frame so that the lever is swingable; the links and the lever are associated at the other ends thereof with a drive control cam, which is rotated by an electric motor; and the driver and the clincher are nearly simultaneously moved toward and away from each other in mutually opposite directions through the

Abstract: An embodiment of the present invention is a hand-held tool for use by a construction worker and comprises a top plate, a main drive assembly with a return spring, and a demountable-wall drop tube insert for receiving a belt of clips. The worker places the tool flat along one edge of a wall panel with one hand and mallets an exposed end of the main drive assembly with the other hand. The resulting forward motion of the main drive assembly snags a single clip from the drop tube insert, separates the clip from the belt, and drives a barbed end of the clip squarely into the wall panel.

Abstract: A magazine for V-nails for use in underpinning of picture frames receives a strip of V-nails secured together by heat-bonded non-adhesive synthetic plastic material through an opening of greater width than the V-nails. A pusher has a downwardly projecting tongue which is driven in the machine and has depending side walls at its forward end affording a contact point for pushing the V-nails at their center of gravity towards a pair of locating formations and the extreme forward end. A single V-nail which may be presented either point foremost or point rearmost is removed from the end of the strip in the underpinning operation, the magazine being cut away and the pusher being cut away to permit this operation. On return of the drive member, a cam firstly returns the pusher to a stop in the magazine and then lifts the magazine from its operative position to enable it to be removed or refilled.

Abstract: A fastener guide mechanism in a fastener driving tool includes a door member for closing an opening formed on one of the lateral sides of a fastener guide having a driver guide and a fastener guide. The fastener guide includes therein a fastener guide channel. A fastener feeding device having a fastener feeding member moves the fasteners connected by a carrier and disposed in the fastener guide channel forwardly toward the driver guide track of the driver guide one after another. A pressing member is mounted on the door member for pressing the connected fasteners on the fastener feeding member. The pressing member is operable to contact the connected fasteners at a first position when the connected fasteners are of a first kind. The pressing member is operable to contact the connected fasteners at a second position separated from the first position in a direction away from the fastener guide channel. The pressing member is biased by a biasing member for normally biasing toward the connected fasteners.

Abstract: A fluid pressure operated nailer is provided including a portable housing having a fixed generally longitudinally extending chamber axis, a fluid pressure actuated mechanism mounted in the housing for movement through successive operative cycles. The nailer includes an elongated nail driving element having a nail engaging end, an opposite end and a longitudinal driver axis extending therebetween. A housing nosepiece is provided which includes surfaces defining a leading nail containing space wherein a nail axis of the leading nail is laterally spaced with respect to the fixed chamber axis. The nosepiece includes surfaces defining a nail feed track extending to the leading nail containing space for guiding a releasably interconnected supply of nails engaged therewith along the nail feed track for generally longitudinal movement therefrom.