Abstract: Method and apparatus for dispensing of attachments comprising a pair of side members linked by a connector. A roll of fastener stock is fed to a reciprocatively driven slide head assembly at which the roll is advanced over an elastomeric feed belt to a pair of needles secured to a shuttle. Once inserted in the needles, an individual attachment is severed from the stock, and displaced over a preset distance by the shuttle into the path of a pair of ejector rods. The ejector rods force the side members of the attachment out of the needles for insertion in a fabric or other workpiece at the bottom of the head stroke. On return stroke of the head, the needles are withdrawn, ejector rods retreat, and the shuttle returns to its severing position in a manner to avoid mechanical interference. This design uses an electric motor driven fastener dispensing head, actuator slide and associated linkages for actuating the various mechanisms either on an on-demand or continuous basis.

Abstract: A downcrowdable telescopic augering apparatus and drilling rig is disclosed that has a low overhead requirement and yet can drill large diameter holes ot great depths. The invention is especially useful for drilling foundation holes. One embodiment of the invention can ready over walls and in-place equipment for drilling holes. One embodiment of the invention can drill holes at almost any angle desired into the earth. One embodiment can drill holes on steeply inclined terrains. Because of its low overhead requirement, the drilling rigs of this invention can be used inside existing building without damaging the ceilings or roofs to drill foundation holes for mounting new machinery. The downcrowd means of this invention does not substantially increase the height of the augering apparatus or drilling rig.

Abstract: The invention provides an indirect firing fastener driving apparatus with adjustable firing power, including within a barrel holder, a barrel, a piston mounted in frictional contact within the barrel, and a pawl for retaining the piston. A ring, held against rotation in the barrel holder, is screwed onto the barrel. The ring cooperates with a free projecting into the barrel so that relative threading of the ring relative the barrel moves, through means of contact of the stop with the pawl, the position of the piston within the barrel when the barrel is pulled forwardly.

Abstract: A pneumatic tool has a torque control actuator which shuts off the tool upon the attainment of a predetermined operating torque. A wrap spring clutch which has a torque capacity at the operating torque has an input shaft and an output shaft. A first axially engageable element rotates with the output shaft and a second element can be axially engaged to rotate with the first element. A cam socket rotates with the clutch input shaft and cams on a cam surface of the first element in response to relative angular movements between the clutch input and output shafts. The cam socket is biased so as to move the first and second elements out of engagement and a pressure operated air valve is provided which moves the cam socket against its bias to engage the first and second elements when the tool is operated. When the operating torque is reached, the cam socket cams off a ledge of the cam surface to allow the air valve to move to a closed position where the tool is shut off.

Abstract: An unused open wire skin staple having a generally U-shaped central portion and outer portions terminating in sharp points that can be closed to a rectangular shape by straightening the central portion. The staple can be closed between an anvil having spaced support surfaces for spaced points along the outer curved surface of the central portion, and a ram with separable end parts that can apply both longitudinal and transverse forces to close the staple around the anvil.

Abstract: For driving of ramming parts under water, a first ramming device is suspended on the supporting element and a second ramming device is suspended on a further supporting element, a submergible electrohydraulic drive unit is located laterally near or under one of the ramming device and connected with both ramming devices by hose conduits, the ramming devices with the drive unit are lowered so that at least one ramming device is placed on one ramming part and after driving it in over a predetermined path it is transferred to another ramming part, while the other ramming device drives further the first ramming part or a further ramming part, and both ramming devices are driven one after the other or simultaneously with one another by the same drive unit.

Abstract: An insert installation machine is provided which features a power operated reciprocating quill mounted on a frame and an insert guide tube fixed to a carriage. The carriage is supported on the frame for reciprocation, toward and away from a workpiece, with the guide tube coaxially aligned with the quill. A shuttle is mounted on the carriage for transferring an insert from a stacking tube in the carriage to the guide tube in timed relation and in response to quill movements.

Abstract: In a motor-driven hand tool, such as a drill, an inert mass is rotatably supported in a housing and is connected to the housing by a spring encircling a driven shaft mounted in the housing. The driven shaft is arranged to rotate a drill bit secured to the shaft. If the driven shaft is prevented from rotating and the housing rotates relative to the shaft, the spring tightens about and grips the driven shaft exerting a braking torque on it. The braking torque reduces the reaction torque required of the tool operator and affords a more rapid release of an overload clutch acting on the driven shaft. The overload clutch is formed by a collar, a gear wheel, a cup spring, and an adjustable ring nut, all located on the driven shaft.

Abstract: In a rammer for driving in pipes open in the direction of ramming, in which a piston, axially reciprocated in a housing having an impact head, imparts its thrust to the housing, making the impact head integral with the housing allows a shorter rammer to be used without loss of thrust.

Abstract: An initiating device which imparts stored potential energy to the driver and cutter in an internal organ stapler. Also disclosed is an overriding device which prevent the use of such a device until the proper clamping of the jaws of the stapler with each other.

Abstract: An impact device having a housing with hollow cylindrical aperture therein. The cylindrical aperture has a rotatable member within. The rotatable member has axial multiple rods thereon. On each rod of the rotatable member there are captive annular masses with a central aperture larger than the diameter of the rod to permit radial movement of the masses with respect to the rod. The rotatable member is driven by a motor and in turn rotates the annular masses which strike impact tools also supported within the housing. The kinetic energy of the annular masses is thereby transmitted via the impact tools to the outside of the impact device.

Abstract: A single-stroke pneumatic apparatus incorporates a hollow cylindrical frame 1) with inlet and outlet ports (2,3). A handgrip (4) containing a directional flow control (5) is attached to the upper end of the frame. A striker (6) is provided in the bore of the frame (1) with provision for reciprocating back and forth so as to divide this bore into a forward-stroke chamber (8) a back-stroke chamber (7). A tool (9) is supported in the lower end of the frame (1). A shell (10) with holes (11) surrounds the frame (1) from the outside, forming a muffling chamber (12) therewith, within a full length of the stroke of the striker (6). Additional outlet ports (15) are provided in the lower end of the frame (1) which communicate the back-stroke chamber (8) with the muffling chamber (12) located wherein is a filter (6) overlapping the holes (11) in the shell (10).

Abstract: A tool attachment for a percussion drill power tool which expands and sets, essentially but not limited to, fastening anchors used in concrete and masonry. The tool's body is generally cylindrical and is mostly hollow to slip over a drill bit (38, 74) of the percussion drill, using a spring clip (24, 124) to keep it from falling off. The opposite end of the tool has either a coaxial concave recess (54, 154, 354, 454) to place onto an anchor (58) or a coaxial plunger (260) to slip into a mostly hollow anchor (258) that are placed into a drilled hole (64, 264). The anchor (58, 258) is then expanded and set into the concrete or masonry by the hammering action transmitted through the tool by the percussion drill.

Abstract: Bulk nails from a single outlet track of a vibrating feedbowl are selectively diverted into a plurality of nail tracks. During each nailing operation of a pallet-making machine, one nail from each track is picked from the track and delivered to a nail-driving chuck. The presence of nails in the track is sensed, and the selective filling of the tracks is based upon the presence or absence of nails in the individual tracks.

Abstract: Improvements in the guide body and nail feed mechanism of a nail driving tool, using wire collated nails, to eliminate the formation of loose pieces of collating wire and the trapping thereof under the heads of driven nails to form flags. The tool has a driver, a magazine containing a coil of nails joined together in spaced relationship by collating wires welded to each nail, a guide body providing a drive track for the driver and the nails, and a feed pawl which advances and retracts in guideways in the guide body and has fingers engaging nails of the coil to locate the forwardmost nail thereof in the drive track. As the forwardmost nail of the coil is driven into a workpiece the collating wires break near the forwardmost nail leaving forwardly extending wire segments on the next succeeding nail. The drive track is provided with windows positioned to receive the wire segments of the forwardmost nail and bend them upwardly along the nail shank as the nail is driven.

Abstract: A stapling instrument including two elongate structural members each comprising a handle part with a jaw part projecting from a first end. The structural members have pivot means at second ends of their handle parts adapted for free engagement and disengagement and relative pivotal movement of the structural members between open and closed positions. An elongate locking member is mounted one one of the structural members for pivotal movement to a locking position generally aligned with its handle part where the locking member can be releasably retained to forcefully move the structural members to their closed position so that high compressive forces can be applied to tissues between the jaw parts. Staples from a cartridge along one jaw part can then be driven through the tissue and closed against an anvil along the other jaw part.

Abstract: A single-blow pneumatic percussive tool includes a hollow cylindrical casing (1) having inlet and outlet ports (2, 3). A hammer piston (4) mounted in the casing (1) divides the interior space of the casing (1) into lower and upper chambers (5,6). A working tool (7) is mounted in the casing (1) on the side of the lower chamber (5). A handle (9) having passages and an air distribution device (8) is mounted in the upper part of the casing (1). A sleeve (12) with ports (13) is mounted on the casing (1) to define a space (14) therewith. An air distribution sleeve (15) is axially biased by a spring mounted in the space (14). The outlet ports (3) of the casing (1) are aligned with the ports (13) of the sleeve (12). The air distribution sleeve (15) has radial ports and recesses (17) which are aligned with the radial ports ( 16) on both surfaces of the air distribution sleeve (15). At least one passage (18) is made in the hammer piston (47) which is biased by spring on the side of the lower chamber (5).

Abstract: A diesel type pile-driver has a cup-shaped monkey (36) accommodated in a sliding fit on the external face of the lower end of the cylinder.

Abstract: A percussion tool usable as part of a single tool impact device or a multi-tool impact device. In each case, the tool is rotatably driven by a high-torque rotary actuator with the tool being longitudinally splined and received within a correspondingly longitudinally splined hollow drive shaft of the actuator. The tool extends fully through the drive shaft to a rearward end thereof at which is positioned a percussion hammer to provide reciprocating endwise impact to the tool. The tool is held within the drive shaft by a splined lock member which can be rotated between a release position with its splines aligned with the drive shaft splines, and a locked position with its splines misaligned with the drive shaft splines. The device is mountable on a mobile vehicle having an articulated arm.

Abstract: Disclosed is an articulated apparatus for positioning a rock drill comprising a self-propelled vehicle having a chassis propelled by endless tracks, a carriage for carrying an engine for driving the tracks, and a rotary drive for power actuated rotation of the carriage relative to said chassis through a full 360.degree. about an upright first axis. A boom is mounted with one end at the carriage for power actuated pivoting thereon about a second axis perpendicular to the upright first axis. An arm is carried by another end of the boom for power actuated pivoting thereon about a third axis parallel with the second axis. A feedshell is provided for guiding and reciprocating a rock drill toward and away from a drill point entry location adjacent to one end of the feedshell.