Abstract: A sheet finisher for executing preselected processing with a sheet introduced thereinto from an image forming apparatus and then discharging the sheet is disclosed. The sheet finisher includes a stacking device configured to temporarily stack sheets sequentially delivered thereto. Jogger fences jog each sheet within the stacking device. A stapler staples the sheet stack jogged in the stacking device. The stapler is supported by a guide shaft such it is movable along the guide shaft in a direction perpendicular to the direction of sheet conveyance and angularly movable in a direction perpendicular to the direction of guide.

Abstract: Two slide bases (106) synchronizingly traveled on linear guides (105) arranged in parallel with each other are rotatably attached with a clincher unit (103) and a driver unit (104) and provided with a click stop mechanism for fixing the clincher unit (103) and the driver unit (104) at a 0 degree position or a 45 degree rotated position. When the driver unit and the clincher unit are traveled from an initial position to a skewed binding position, the 0 degree claw portion (119) impinges on the stopper pin (121) and the driver unit and the clincher unit are rotated to the 45 degree rotated position to fix. When the driver unit and the clincher unit are traveled reversely to the initial position, the 45 degree claw portion (120) impinges on the stopper pin (121) and the driver unit and the clincher unit are returned to the 0 degree position to fix.

Abstract: A stapler moving guide device is disclosed, which can move regardless of a paper conveyer so as to enable multi-stapling at the end of papers and at the same time can move to a side portion at a tilt angle. The stapler moving guide device includes a stapler frame 131 provided with a stapler moving path 133 and a horizontal moving guide 52, a first moving plate 50 reciprocating along the horizontal moving guide, a second moving plate 51 reciprocating on the first moving plate in a direction perpendicular to the horizontal moving guide and moving in parallel with the first moving plate, and a stapler 124 fixed on the second moving plate.

Abstract: An adjustable angle magazine provides the operator of a nail gun the ability to adjust the position of a housing of the magazine, which stores nails to be driven, relative to a nose casting of the nail gun. This repositioning enables an operator to employ a variety of nails, collated at a variety of angles, within the nail gun.

Abstract: A nailing gun applicable to oblique rowed nails of different specifications includes a nail box having its upper rear side pivotally combined with the head end of a muzzle to form a pivot and its intermediate portion combined with the arc-shaped guiding slot of the combining member of a handle. Thus, the nail box can be adjusted and positioned at a proper angle for loading oblique rowed nails of different specifications. The nail box has a U-shaped nail-guiding plate fitted in a nail head groove and having its upper end formed with an extending section extending upward and reaching the rear end wall of the muzzle. The extending section of the nail-guiding plate is able to guide oblique rowed nails to smoothly move in the interior of the muzzle whenever the nail box is adjusted at a slant angle for loading oblique rowed nails of different specifications.

Abstract: A nail lockout assembly provides a way for an operator of a nail gun to have determined whether the nails being employed are properly aligned to allow for efficient operation of the nail gun. The nail lockout assembly may be employed in a nail loading assembly, such as an adjustable angle magazine, which is coupled with a nail driving assembly. A slotted guide member disposed in a housing of the nail loading assembly provides a determination of the angle of the nail loading assembly relative to the nail driving assembly through operational engagement with a projection. A linkage bar is coupled with the slotted guide member and translates the angle of the nail loading assembly to a pusher which engages a nail loaded in the nail loading assembly. A cover serrated member is coupled with a cover of the nail loading assembly. A pawl assembly is coupled with the linkage bar and may engage with the cover serrated member. An adapter couples with the pusher and the pawl assembly enabling rotational movement in each.

Abstract: A nail ejector includes a main body; and a nail magazine mounted on an end of the main body. Thus, the nail ejector is pressed and operated by a user's one palm to eject the nails outward successively. In addition, the nail magazine contains multiple nails which are ejected outward from the shaft hole of the guide tube successively without having to feed the nails repeatedly, thereby greatly saving the working time, and thereby enhancing the working efficiency.

Abstract: A tool mount for a pneumatic tool used in installing tongue and groove flooring or other strip material. The mount has a base with a vertically adjustable tool carrier and an adjustable spacer to position the tool vertically and laterally with respect to the flooring or other strip material.

Abstract: A pneumatic mallet-blow operated fastener driving tool for securing hardwood planks to a subfloor, which comprises a fastener discharge mechanism in turn comprising a housing having a pressurized main chamber in direct link with a compressed air intake, a selectively depressurizable closure chamber pressurized when the tool is at rest, and a cylinder in which a piston having a plunger affixed thereto is slidably mounted. A valve, biased toward a closed position when the closure chamber is pressurized, or biased towards its open limit position if the closure chamber is depressurized, permits selective establishment of fluid communication between the inside of the cylinder and the pressurized main chamber. The piston, at a retracted limit position when the tool is at rest, is forced towards a deployed limit position when fluid communication is established between the main chamber and the inside of the cylinder, in order for its plunger to strike a fastener and drive it into an underlying plank.

Abstract: A point driver is provided that comprises a body, a selectively operable actuator, a pushplate connected to the actuator, and a head. The head includes a channel disposed between a first section and a second section. At least a segment of the channel follows an arcuate path. The head is aligned with the actuator so that a portion or all of the pushplate can be driven by the selectively operable actuator through at least a portion of the channel.

Abstract: A pneumatic nailer includes body for receiving the piston therein and a barrel is rotatably and movably inserted in a connection tube extending from the body. The piston rod is movably inserted in the barrel for ejecting the nail fed in the barrel. A magazine is connected to the barrel so that the magazine is rotatable relative to the body so that the magazine is rotated a new position and used in a space that the conventional magazine cannot be inserted.

Abstract: A stapler assembly includes a base and a stapler coupled to the base. The stapler is movable with respect to the base between a first position, wherein the stapler has a first orientation with respect to the base, and a second position, wherein the stapler has a second orientation with respect to the base. The base preferably includes a holster configured to receive the stapler and is pivotable to move the stapler between the first and second positions. A cradle supports the holster. A detent mechanism between the cradle and the holster includes at least two detents corresponding with the first and second stapler positions. Preferably, the stapler is an electric stapler and the base includes an electrical conductor configured to conduct power from a power supply cord to the stapler when the stapler is received in the base.

Abstract: The machine comprises two independent fastening stations. The first station (2), designed to assembly the corners of the frame separately and successively, is provided with two cutting heads (3, 7) for cutting the mouldings (5, 9) forming the corner of the frame, as well as with a fastening head (11) and devices with stops (6, 10) and jaws (14) for holding mouldings in position. The second station (15), designed for final assembly of the frame, is provided with two fastening heads (19, 20) installed facing each other along the diagonal of the frame to be produced.

Abstract: An apparatus for feeding stapling elements grouped in sets to a stapling machine which is suitable to insert the elements astride the joint of strips arranged at an angle in order to provide perimetric frames, supporting frames and the like, comprising a magazine which is composed of at least one inclined channel suitable to accommodate a plurality of aligned sets and having a downward outlet for the sets, means for individually releasing the sets from the at least one channel through the outlet, a holder which comprises at least one seat arranged below the outlet of the at least one channel, actuators for actuating the holder between a position for receiving a set from the at least one channel in the at least one seat and a position for positioning the set with respect to the stapling machine so as to align the punch of the machine with the stapling elements to be inserted.

Abstract: A device for mating strips joined at an angle for forming rectangular frames having a L-shaped element, acting as movable abutment for the strips, has a symmetrical hinged connection to a pair of linkages, pivotally connected to a free end to the supporting element fixed to the platform, and an arm protruding outside the L-shaped element along the extension of its bisecting line and undergoing elastic centering. The element and linkages are accommodated in the supporting element in two mutually aligned seats which lie transversely to the slot of the platform, and are each constituted by a bush from which a slider protrudes; the slider is pushed, until it rests against an abutment of the bush, by a cylindrical spring which acts between the slider and the screw-type cap used also to adjust the preloading of the spring.

Abstract: An accessory device for fastener-driving tools such as nail and staple guns is provided. The device serves as a positioning guide for the tool and is designed to provide sufficient spacing and orientation between the fastener-driving tool and the target construction material. The device can be integrated into the body of the fastener-driving tool, manufactured as an attachment or manufactured as a separate tool. It prevents impact marring at the visible surface of the construction material by redirecting the force of the blow to a non-visible surface on the assembled construction material. Furthermore it increases speed and ease of movement for the user by serving as a guide for stability and ease of alignment. The device changes the impact point between the driving tool and the construction material, broadens the area of impact and protects the top edge of a tongue and groove construction material from impact damage.

Abstract: An automated apparatus for feeding and positioning strips in machines for making rectangular frames which are equipped with four stapling units for joining, by steel staples, the strips that form the frames, wherein the strips are picked from corresponding conveyor belts and are transferred and positioned correctly in the stapling units by four motorized carriages which are provided with rotating arms fitted with clamps for gripping the individual strips and move on their respective guides, which are parallel to the conveyor belts that feed the strips for a first couple of the carriages and are perpendicular to the conveyor belts for a second couple of the carriages.

Abstract: A fastener driving apparatus (1) having a carriage (10) supporting a fastener driver (18) and adapted for translation across a flooring member (42) being fastened by fasteners from the fastener driver (18). The fastener driver (18) is preferably supported in the carriage (10) at an angle with respect to a fully vertical position in order to drive fasteners at an angle with respect to the flooring member (42) and more preferably into the side of the flooring member (42) and into the underlying structure. More preferably, the angle of the fastener driver (18) is adjustable. Carriage motion elements (36) permit translation of the fastener driving apparatus (1) across the flooring (44) with a support wheel (50) preferably arranged so as to exert a lateral force upon the apparatus (1) when the apparatus (1) is pushed.

Abstract: A connector insertion tool includes a pneumatic drive mechanism for connecting two structural members through the use of connectors having two spiked ends oriented in different planes relative to each other. A first pneumatic mechanism rotates a first spiked end of a pair of connectors into a position for being driven into a structural member. A pneumatic mechanism drives a block which engaged and drives the spiked ends into a first structural member, and positions the second spiked end of each connector into position for being driven into a second structural member. A pair of clamp arms rotate into position through the operation of the pneumatic drive mechanism causing a connector to be driven into opposite sides of a second structural member for connecting the first and second structural members, for example, beams in wood-frame construction, together.

Abstract: A tool mount for a pneumatic tool used in installing tongue and groove flooring or other strip material. The mount has a base with a vertically adjustable tool carrier and an adjustable spacer to position the tool vertically and laterally with respect to the flooring or other strip material.

Abstract: A delivery tool is provided for driving fastening devices, for example, U-shaped fastening devices which mount tubing to a surface. The delivery tool has a pivoting structure, including a driving member and a base member. The delivery tool includes a movable ram which is axially guided within the base member to maintain an orientation perpendicular to the surface to drive the fastening devices in a straight manner. A pneumatic impact mechanism is housed within the driving member to assist the ram. The impact mechanism has a concave force delivery member shaped to contact the ram at a generally radial orientation relative thereto, thereby optimally delivering the impact forces to the ram regardless of the angular position of the driving member relative to the base member.

Abstract: A device and method for driving a first prong of a multi-pronged fastener into a first board and bending a second prong angularly to give it a desired orientation with respect to the first prong. The invention involves an alignment structure, a first driver for driving the fastener into the first board, and a second driver for impacting and bending the second prong angularly with respect to the first prong.

Abstract: A pneumatic nail gun has a body, a handle extending from one end of the body, a barrel mounted on the other end of the body, a magazine pivotally connected to the barrel and assembly for positioning the magazine arranged in the body. With such a pneumatic nail gun, the magazine can be rotated and positioned to a desired angle relative to the barrel. Consequently, the pneumatic nail gun can accommodate different types of nails without changing to a different magazine.

Abstract: A dual mode stapling system with a first mode for plurally stapling a set of sheets parallel to one edge and a second mode for corner stapling at an angle to a set of sheets, with a single stapler mounted for linear movement by a simple linear repositioning system to selected stapling positions, but selectively further movable by the same linear repositioning system into a transition area where the stapler is automatically pivoted into the second stapling mode for corner stapling by a camming member which engages and pivots the stapler. A spring automatically reverse pivots the stapler back to the first stapling mode position when the linear repositioning system is reversed. The linear repositioning system may be a single reversable stepper motor driven leadscrew.

Abstract: A fastener driving apparatus (1) having a carriage (10) supporting a fastener driver (18) and adapted for translation across a flooring member (42) being fastened by fasteners from the fastener driver (18). The fastener driver (18) is preferably supported in the carriage (10) at an angle with respect to a fully vertical position in order to drive fasteners at an angle with respect to the flooring member (42) and more preferably into the side of the flooring member (42) and into the underlying structure. More preferably, the angle of the fastener driver (18) is adjustable. Carriage motion elements (36) permit translation of the fastener driving apparatus (1) across the flooring (44) with a support wheel (50) preferably arranged so as to exert a lateral force upon the apparatus (1) when the apparatus (1) is pushed.

Abstract: A nailer is disclosed having a plunger wherein a user can incrementally drive a fastener into a workpiece by manually striking the plunger multiple times. Generally, the nailer includes a housing having a chamber adapted to receive at least one fastener and a driving blade. Operably connected to the housing and the driving blade is a plunger having a plurality of teeth. Received between at least two of the teeth is a pawl. Further, a recoil spring is operably connected to the housing and the plunger.

Abstract: An accessory device for fastener-driving tools such as nail and staple guns is provided. The device serves as a positioning guide for the tool and is designed to provide sufficient spacing and orientation between the fastener-driving tool and the target construction material. The device can be integrated into the body of the fastener-driving tool, manufactured as an attachment or manufactured as a separate tool. It prevents impact marring at the visible surface of the construction material by redirecting the force of the blow to a non-visible surface on the assembled construction material. Furthermore it increases speed and ease of movement for the user by serving as a guide for stability and ease of alignment. The device changes the impact point between the driving tool and the construction material, broadens the area of impact and protects the top edge of a tongue and groove construction material from impact damage.

Abstract: There is proposed a nail driving tool provided with a driver guide including an injection hole for driving a nail and a contact arm surrounding an outer surface of a forward end of the driver guide in a nail driving direction, provided with an eject hole penetrating through the contact arm, movable on an axial line along the nail driving direction for making triggering operation for driving a nail effective by being moved in the opposite direction to the nail driving direction and designed to drive a nail outwardly through the eject hole, wherein a diameter of an outer surface of a forward end portion of the contact arm is decreased taperingly toward its edge in the nail driving direction.

Abstract: A fastener driving apparatus having a carriage supporting a fastener driver and adapted for translation across a flooring member being fastened by fasteners from the fastener driver. The fastener driver is preferably supported in a carriage at an angle with respect to a fully vertical position for driving fasteners at an angle with respect to the flooring member and more preferably into the side of the flooring member and into the underlying structure. More preferably, the angle of the fastener driver is adjustable. Carriage motion elements permit translation of the fastener driving apparatus across the flooring and are preferably arranged so that they exert a lateral force upon the apparatus when the apparatus is pushed.

Abstract: A plate-shaped fastener is driven obliquely into a wall member. When driving is complete, a member is superposed on the wall member, and a screw inserted through the member is threaded into the wall member. When the screw penetrates through the wall, it is threaded into the plate-shaped fastener. When the screw is tightened, the portion of the plate-shaped fastener protruding to the back of the wall is pulled against the back of the wall member, so that this portion of the plate-shaped fastener is bent and superposed on the back of the wall member. Thus, the member is securely fastened to the wall member with the wall member sandwiched between the member and the plate-shaped fastener. Also, a jig for driving the plate-shaped fastener is proposed which comprises a plate holder portion and a positioning plate portion.

Abstract: The present invention provides an apparatus capable of selectively stapling one of opposite corners of the sheets, as well as a side of the sheets.

Abstract: An apparatus for manufacturing rectangular frames composed of strips which are assembled by way of mutual joining elements which are driven into them by stapling machines so as to straddle the joints formed by mating the strips at right angles, which comprises: a horizontal beam which is supported so that it is rotatable centrally about a vertical axis so as to form two arms which lie diametrically with respect to the vertical axis, each arm being provided with sliding guides for respective carriages; two levers, which are articulated to each one of the carriages about axes which are parallel to the vertical axis; a grip element for a respective one of the strips that constitute the frame being mounted on each one of the levers; elements for actuating the grip elements, the levers, the carriages and the beam so that in a first position of the beam, the grip elements are located in a position for picking up the strips to be assembled; in a second position, the levers are rotated so that the strips picked up by

Abstract: The nailing tool has a hollow main body including a valve slidable therein. The main body includes a compressed air reservoir, the compressed air keeping the valve closed in a resting position. An anvil is provided at the upper end of the tool, with an empty annular chamber at atmospheric pressure being located under the anvil and over a ring integrally attached to the valve. Thus, if a hammer blow is dealt on the anvil, the latter loosely slides inside the main body, without reaching the ring, with the valve remaining closed and no fastener being expelled from the tool. Upon a trigger being activated on the tool handle, compressed air fills the annular chamber between the anvil and the ring. In this condition, upon a hammer blow being dealt on the anvil, the impact of the blow is transmitted by the compressed air to the underlying ring, consequently opening the valve.

Abstract: A device and method for driving a first point of a double-pointed staple into a first board surface of a first board and a second point of the staple into a second board surface of a second board, the board surfaces intersecting at a junction where they define an included angle of less than 180.degree.. The invention involves an alignment structure, having first and second abutment surfaces, a staple delivery channel, and a driver.

Abstract: A pneumatic nailer having a safety mechanism that reduces accidental discharge of nailer is provided. The nailer includes a hollow main body housing having a main pressure chamber in pneumatic communication with a main valve housing. Pressurized gas is injected into main pressure chamber, and a metering hole between the main chamber and valve assembly allows gas pressure to equalize between the main chamber and the valve housing. A safety trigger and safety valve are in pneumatic communication with the pressurized valve housing. A ram cap positioned over the top portion of the valve assembly is struck, moving the main valve assembly downward, with unseating of a cylinder firing valve only if internal pressures have been adjusted by actuation of the safety valve by an operator.

Abstract: A stapling attachment is positioned on a movable carriage. The stapling attachment can be pivoted relative to the carriage. At a predetermined position of the travel path of the carriage a capture mechanism engages a bolt disposed eccentrically with respect to a pivot axle of the stapling attachment. The stapling attachment is automatically pivoted into an oblique position through the reverse movement of the carriage so that a staple may be inserted at an oblique angle of a sheet stack.

Abstract: A device for assembling sash elements (12) in a frame (11) disposes over instruments (8) for clamping the frame (11). An angle template (7) is provided for inserting the sash element (12) which is freely movable on a predefined plane in relation to the clamped frame (11). The sash element can be held fast and be pushed into the desired assembly position at a set angle on the angle template.

Abstract: A corner bead fastening tool comprising a pair of hinged faceplates, a pair of fastener guns each mounted on one of the faceplates with brackets, a handle mounted on the hinged faceplate assembly between the fastener guns, and a common trigger mechanism on the handle which permits simultaneous firing of both fastener guns.

Abstract: A pivot is provided on or in the vicinity of the axis of binding portions of a stapler main body, and rotatably supports a front end portion of a stapler main body. A driving system swings the stapler main body about the pivot within a given angular range. Having the above pivot and driving system, a binding angle changing mechanism changes a binding angle formed by the side of recording sheets and the stapler main body by use of drive force of the driving system. An advance/retreat mechanism advances or retreats the stapler main body perpendicularly to the side of the recording sheets between a retreat position that is distant from a subject end portion of the recording sheets and a binding position where the binding portions are to bite the subject end portion.

Abstract: A tool (100) is provided for actuating a pair of fastener ejecting guns (30, 330 and 40, 340). The fastener ejecting guns (30, 330 and 40, 340) are secured to a handle assembly (110, 200) in parallel relation, and in a predetermined angular relationship, one with respect to the other. Tool (100) further includes a trigger assembly (124, 240) for displacing the respective actuating levers (32, 332 and 42, 342) of the fastener ejecting guns (30, 330 and 40, 340). The trigger assembly (124, 240) includes a trigger member (128, 248) which is coupled to an actuating bar member (126, 246) having opposing ends (125, 242 and 127, 244) for respectively displacing the actuating levers of the fastener ejecting guns. Thus, when a user displaces the trigger member (128, 248) both fastener ejecting guns (30, 330 and 40, 340) are actuated to drive a pair of fasteners in two different directions.

Abstract: A fastener tool is provided for attaching a protective strip to a corner formed by two intersecting walls. The fastener tool includes a handle for being gripped by a user. First and second fastener guns are supported by the handle at a predetermined angle in relation to each other and to the intersecting walls. The first and second fastener guns drive respective fasteners into the protective strip and intersecting walls thereby attaching the strip to the corner. A trigger mechanism is connected to the handle for actuating the first and second fastener guns.

Abstract: A tacker instrument for laparoscopic applications fits within a cannula and incorporates within a sleeve a positioning and driving system coupled to a tack holder mechanism at the distal end. The tack is held unexposed during entry but then may be extended to a predetermined position for embedment, with position being verifiable through the sleeve. Impact forces for embedding or removing the tack are applied to the positioning and driving mechanism, and the tack and tack holder are configured so that there is lateral disengagement or engagement of the two. In one version the mechanism is linear, while in a second version the distal end of the sleeve device can be angulated for perpendicular tack entry or removal with impelling forces being applied through a flexible shaft segment.

Abstract: In a powered tool for dimpling a drywall panel and driving a drywall nail through such panel, into a substrate, a dimpler mounted to a nosepiece of the tool so as to be axially movable over a limited range has an annular portion disposed axially beyond the nosepiece. The tool includes a piston and a driving blade joined to the piston and arranged for driving a drywall nail through the nosepiece and the annular portion, for engaging the annular portion near a distal end of the driving blade, and for driving the dimpler outwardly when the piston is impelled from a retracted position toward an advanced position. The annular portion has a frusto-conical bore. The driving blade has a frusto-conical tip fitting thereinto. A workpiece-contacting shoe is adjustable between a right-angled position relative to the drywall panel and an acute-angled position.

Abstract: An auxiliary slidable abutment is pivotally mounted on the nail cartridge of a nailing gun in such manners that it slides in a direction consistent with axis of the nail cartridge, and that it can be locked at any given point of its sliding course, and further that its bottom extends downward beyond the nail cartridge. It provides the nailing gun with the capability of doing things, such as driving with precision the nails onto a workpiece at the prescribed intervals, driving the nails with precision onto the fastened area of a horizontal board and a vertical board, and driving the nails onto a workpiece at a prescribed angle and with precision.

Abstract: A nailing machine includes a body, a nose extending from the body and having a nail guide channel therein, a driver reciprocally movable within the nail guide channel for driving the nail, and at least one first surface and at least one second surface formed on the end portion of the nose. The first surface extends perpendicular to the longitudinal axis of the nail guide channel. The second surface is formed in continuity with the first surface and is inclined at a predetermined angle with respect to the first surface.

Abstract: An automatic fastening machine where strips of covered fasteners (11) are fed from a reel 16 of fasteners into the rear of the fastening machine along a guide means (12) as needed. A fastener advancing means (13) intermittently urges the strip of fasteners toward a drive element (60). The drive element engages the top of the foremost fastener of the strip of fasteners to force the fastener into a work piece.

Abstract: A fastener driving tool includes a guide for positioning a furniture spring clip with respect to the tool and also positions the furniture spring clip with respect to a wooden furniture frame to allow the furniture spring clip to be secured thereto. A furniture spring clip is also disclosed which includes one or more fastener receiving apertures which allow the fastener to be received in the wooden frame at a corner at approximately a 45.degree. angle with respect to adjacent perpendicular surfaces of the furniture frame. The furniture spring clip is thus adapted to be secured to a wooden furniture frame with a single fastener which provides holding power along two axes with respect to adjacent perpendicular surfaces of the wooden furniture frame.

Abstract: A bracket support assembly connected to the lower end of the head of a staple gun. The support assembly includes a U-shaped plate member having a web portion that functions to longitudinally align the driveway of the gun with a fastener-receiving opening in the mounting bracket and a pair of opposite spaced apart leg portions which function to laterally align the driveway with respect to the fastener-receiving openings of the mounting bracket. A flat support plate extending across the lower end of the U-shaped plate member acts to support the mounting bracket during a fastener driving operation.

Abstract: A hand tool, and method of using the same, for installing roof gutters on a residence or other building. The tool may be used to position the gutter temporarily against the building wall as the tool is held in one of the user's hands, without any attachment of the gutter or the tool to the building being necessary. The user may use his other hand to hold a hammer to strike the free end of a nail-driving piston--which is held and guided, together with a nail, by the tool--to drive the nail through the rear wall of the gutter and/or the rear portion of the associated hanger, and then into the building wall. The tool may then be freely and immediately moved away from the gutter.

Abstract: An automatic fastening machine where strips of covered fasteners (11) are fed from a reel 16 of fasteners into the rear of the fastening machine along a guide means (12) as needed. A fastener advancing means (13) intermittently urges the strip of fasteners toward a drive element (60). The drive element engages the top of the foremost fastener of the strip of fasteners to force the fastener into a work piece.