Abstract: This invention relates to a sewing apparatus. Staples or tacks having the function of a sewing thread are first penetrated successively through a work placed on a bed. The staples or tacks are supplied and fed successively from a feeder which is provided over the work. The extremities of the staples or tacks are then transformed so as not to be removed from the work. The penetrating and transforming operations are performed simultaneously at a plurarity of points or successively from point to point, whereby seams or patterned seams adjacent to each other are accomplished to sew the work.

Abstract: For a nail-driving machine a guide-bar is disclosed, having generally the shape of an open hairpin with short staggered inclines to retain the nail row in position and to guide the nail magazine as the latter is being fed forward under the nail-driving ram.

Abstract: A safety device for apparatus for driving fasteners, notably pneumatic nailing hammers and stapling guns, comprising feeler means substantially circumscribing the passage through which the fasteners are to be ejected. The feeler means are connected to the member controlling the release of the apparatus in such a manner that this release cannot take place unless the feeler means are pressed against a surface to be assembled. The feeler means consist of a plurality of independent feeler points which must be recessed simultaneously, otherwise the apparatus cannot be released. Only one of these feeler points is connected to the trigger of the apparatus and its retraction is normally prevented by positive locking means that cannot be released unless the other feeler points are depressed simultaneously against the force of resilient means urging them to their projecting position.

Abstract: A pneumatic, linear thrust hand tool, such as a nail driver wherein a charge of pressurized gas in a firing chamber acts, when a main valve is opened, to drive a ram downward. The main valve is opened by a higher pressure source gas entering a charging chamber under a piston carried on the valve stem. Then a control valve is released, the pressurized gas under the piston is delivered to the main cylinder to return the ram and, when the main valve is closed, the pressure in the firing chamber is equalized with that in the charging chamber to prepare it for the next "firing".

Abstract: A nozzle assembly for a nail gun includes three wing portions pivotally mounted on a nozzle holder to define a nozzle tapering towards a nozzle outlet. When the wing portions are in their inner closed position they can support an upholsterer's nail with the nail head resting on the inner walls of the nozzle, and the nail stem located in the nozzle outlet. When the nail is being driven into upholstery, the nail head forces apart the wing portions against the action of a resilient support ring. The wing portions may be surrounded by an outer casing which may be rotatable. This outer casing may have a cut-away portion or flat formed on it.

Abstract: A mechanism for collecting debris generated during the driving of a fastening means from a strip of such fastening means. The mechanism consists of a container disposed adjacent the opening of the outlet of the driving tool and air means for directing debris from the outlet of the driving tool into the container.

Abstract: A device for simultaneously stapling and marking a workpiece is disclosed. The device comprises a main body housing means for driving staples into a workpiece as well as means for supporting a removable marking unit. The marking unit is positioned in the housing in such a manner as to apply an identifying mark to the workpiece when the workpiece is stapled.

Abstract: A pole extension device for use with a powder-actuated tool. A cam-equipped handle is twistably mounted on the end of a hollow elongate body. An inelastic cable is disposed within the body engaging the tool firing mechanism and attached to a pin riding on the cam, such that twisting of the handle, relative to the body, results in discharge of the tool.

Abstract: Apparatus for installing metallic inserts into thermoplastic material. The apparatus comprises a heating device in combination with a heating element having a first bore adapted to receive the heating device. The heating element is formed into an elongated tip specifically shaped to grasp a metallic insert which is then heated by conduction to a temperature suitable for melting the thermoplastic material. A longitudinal bore in alignment with the first bore and coupled thereto with a second bore extends through the heating element elongated tip. Plunger apparatus slidably inserted in the longitudinal bore and second bore is positioned by spring apparatus located in the second bore to maintain the metallic insert in engagement with the elongated tip of the heating element during the heating and insertion of the metallic insert into the thermoplastic material.

Abstract: A plastic heel is attached by inserting through an insole of a shoe a fastener, and vibrating the fastener at ultrasonic frequency to cause its shank to melt the plastic and become embedded in the heel. The fastener may be a staple with wide legs having holes therein. The shank of the shoe may be bridged by the staple for added attachment strength. Since less work penetration is needed than in nail-attaching of heels, advantage is gained especially in securing sharply tapering or so-called "stiletto" heels.

Abstract: A process for attaching one or more layers of materials to a base or backing having an anvil in its composition. A backing has incorporated therein an anvil strip of high impact material with formed depressions for clenching staples driven through the layer or layers to be attached. The anvil strip may be a metal strip embedded in the spine of a binder or may be formed by the boundary line of a relatively hard material and a relatively soft material through which a staple or tack may pass and the layers may be a stack of paper or signature sheets.

Abstract: An attachment for a stapling gun of the type which is used in the finishing and construction business for fastening electric cable and the like, and more particularly, the pneumatic stapler which is used for securing electrical cable through its routing within a building structure. The attachment consists of a guide member which is readily affixed to the commercially available staple gun to enable gun alignment and placement of the staple without danger of nicking or otherwise injuring the electrical cable insulation during placement and securing of the electrical cable as must be done in accordance with most building specification requirements.

Abstract: An improved and versatile nailing tool comprised of parallel and spaced-apart ramrod and nail feeding tubes intersecting adjacent one end thereof. A plurality of foot attachments are provided for accomodating different nailing situations, the attachments being removeably connected to one end of the ramrod tube. A ramrod is reciprocally contained within the ramrod tube. A nail deposited in the distal end of the nail feeding tube is guided into the ramrod tube in a position to be driven home.

Abstract: Attachment for converting a stapler for driving open staples into a stapler for driving closed staples, the attachment including a plate having a first portion which is clamped to the base of the stapler and a resilient second portion which extends a substantial angle to the first portion and carries a staple-bending device.

Abstract: The invention provides a variable work station for staple basting fabric materials, the invention comprising a work table having displaceable block-like sections which are interchangeable with block-like support members each mounting a stapling gun thereon. The support members are positioned in the spaces from which the block-like sections are removed in order to position the stapling guns in a desired location relative to the fabric work piece. The invention allows selective lateral positioning of the stapling guns over the work surface of the work station as well as allowing forward, backward, and pivotal movement of the stapling guns.

Abstract: In a spring-energized stapling machine according to the invention, some provisions are included for extending the function of the machine and preventing any harm possibly caused by the abuse of the machine. These provisions comprise a check plate which can be adjusted to obstruct the operating handle of said stapling machine, a movable fitting serving as a backing plate for paper-fastening in one state and as a safety shield to prevent the driving of staples in an other state, and which can be moved to allow conventional ejection of staples, two different systems of measuring scales engraved on both sides of the foot of said machine, and a novel staple supply which possesses two sets of grooves to accept staples of different sizes and, at its rear, means for staple removal.

Abstract: A stapler has a housing which prevents the two arms of the stapler being opened right out. One part of the housing is attached to the base and engages with a part of the head, and prevents the head moving too far from the base. This part of the housing can be simply removed from the stapler itself. A second part of the housing is attached to the head.

Abstract: An apparatus for mounting steps on the inner wall surface of a manhole section comprises implanting the steps in the section while the same is still green and following removal of the inner form but before removal of the outer form, positioning each step in confronting relation with the manhole section and thereupon smoothly and uniformly, without vibration and hammering, pushing the step into the concrete and compacting the concrete around the implanted step. The apparatus may be portable and shifted into the manhole section through an end thereof after the inner form has been removed but prior to removal of the outer form, and positioned against the base ring at opposite inside diameters thereof and engaging the outer form at the top of the manhole section and while thus engaged urging the step into the manhole section as aforesaid. Alternatively the apparatus may be stationary and the manhole section temporarily moved thereto and supported thereon during step implanting.

Abstract: A stapler having a pair of elongated members pivotally interconnected at first ends thereof by a hinge pin so that the opposite ends of the members can move toward and away from each other to effect a stapling operation. One of the members carries an anvil at its opposite end and the other member has means at the opposite end for dispensing staples through sheet material and against the anvil when the members are squeezed together by the hand after the sheet has been placed between the members. Such dispensing means includes a pair of relatively shiftable elements including a ram for dislodging and driving the end staple of a group of staples through an opening in one of the elements and toward the anvil. The members are provided with leg means on the lower ends thereof for positioning the stapler on a supporting surface in an upright, stabilized position so that the members can be grasped by the hand and moved together when the hand is squeezed.

Abstract: A device adapted for use in the building construction industry for shooting a stud or other fastener into a ceiling in predetermined relation to a known point on a floor below. The device comprises an adjustable telescopic pole with a hanger arm extending laterally from its top. A plumb line, having a plumb bob attached to its lower end, hangs from the outer end of the hanger arm for alignment of the stud gun with the point on the floor and the muzzle of the stud gun may be mounted in direct or offset alignment with the plumb line to facilitate rapid and accurate positioning of the stud gun. Means are provided for vertically aligning the telescopic pole such that the muzzle of the stud gun is in vertical alignment with the plumb line.

Abstract: An apparatus for attaching fastener elements and the like to articles includes an indicator extending downward from a slide bar which advances one of a pair of mating elements to an upper station. The indicator points out the position on an article where the fastening elements will be secured to the article and is automatically retracted when the slide bar is retracted. Additionally, detent members are provided on resilient guide bars for holding elements in an intermediate position along a slide path, and a ram is provided with vertical extensions to maintain orientation of a fastener element.

Abstract: An apparatus is disclosed for applying designs to pierceable materials, such as fabrics, paper goods, leather, etc., from a continuous supply strip containing intermittent design portions equally spaced along the length of the supply strip. The apparatus comprises feeding means for intermittently feeding the supply strip to a shearing, bending, driving and clinching station positioned above a clinching die; shearing means for severing a length of said supply strip from the end thereof; bending means for bending the cut off length into an approximately U-shaped member having a bight portion and side leg portions; driving means for driving the U-shaped member into the clinching die and through any pierceable material positioned above the die; and locater means for establishing a proper start position for the supply strip so that the design portions thereof will constitute the bight portions of the U-shaped members.

Abstract: A bolt welding gun is provided with supporting legs extending outwardly from the gun housing which can be displaced to accommodate different bolt-attaching situations. The supporting legs can be mounted in a ring-shaped housing part which is rotatable about the driving axis of the gun. Alternatively, the ring-shaped housing part can be formed of individual segments with at least one segment arranged to be pivoted about an axis parallel to the driving axis. In another embodiment, the part of the housing to which the supporting legs are secured, can be provided with a plurality of receptacles greater in number than the supporting legs used so that the legs can be moved between the receptacles in accordance with the support arrangement desired.