Abstract: A corrosion resistant fastening system for use with metallic targets exposed to corrosive, aqueous environments, comprising a fastener and a planar coupon each formed of a corrosion resistant alloy. The fastener is driven through the coupon and into the target by means of a powder actuated tool, whereby the coupon is maintained in intimate contact with the target surface. Corrosion thus preferentially occurs at the interface between the target and the coupon, the interface between the target and the fastener being thereby protected.

Abstract: A device and method for temporarily supporting a metallurgical side board in a predetermined position against a vertical surface of an ingot mold, comprising an attachment member, adapted for releasable attachment to a side board, connected to a counterbalance body by a chain. The point of attachment of the chain to the attachment member is offset, relative to the center of gravity of a side board attached thereto, whereby a component of the gravitational force acting on the side board presses the same against the vertical surface of the mold.

Abstract: The present invention relates to a self-closing propellant charge package adapted for use with a gravity operated loading device of a power-actuated tool. The package comprises a tubular body having one end at least partially closed, the other end being open. A portion of the body adjacent the open end is deformed for holding the charges, it being possible to cancel the deformation of this portion to allow passage for the charges. More specifically, at least one cut-out is provided in the deformable portion, the portion being maintained in a deformed state by a resilient ring or other means.

Abstract: A noise reducer for a powder actuated fastening tool comprises a barrel including inner and outer cylindrical walls which are radially spaced to define a gas expansion chamber between them. The chamber is adapted to receive combustion gases through ports or passages in the inner wall, and the gases may be exhausted from the chamber in any appropriate manner, preferably at a location adjacent the front end of the tool. The outer wall of the barrel can thus be made to slidingly fit within the tool receiver, while porting of the expansion chamber can be such as to induce a favorable flow pattern to the combustion gases passing therethrough.

Abstract: A projectile for a centerfire cartridge achieves maximum energy transfer with limited target penetration. A hollow point lead bullet is provided with an aluminum jacket which allows the cartridge containing the projectile to feed reliably in auto-loading pistols and yet does not restrict normal expansion of the bullet upon impact with the target. The jacket extends into the nose recess of the bullet and covers the peripheral portion of the bullet base, whereby the jacket is securely fastened to the bullet and separation subsequent to impact is prevented.A method of fabricating the projectile is also disclosed.

Abstract: A powder-actuated fastening tool is provided with a return pawl slideable within a pawl-holder fixed to the barrel-holder, between a piston engaging position, wherein the pawl, protruding through a longitudinal slot in the barrel engages the piston during the opening of the tool, while at least one boss, formed on the pawl, engages a first plane milled surface of the barrel, and a cocked position, where a second plane milled surface of the barrel, more remote from the barrel axis than the first surface, engages the boss to retract the pawl, the two milled surfaces being connected by a transverse groove which the boss can engage to maintain the barrel in its locked and non-cocked position.

Abstract: An expansion core anchor comprising a cylindrical body having a head and a crural end, the head having an axial bore drilled into it wherein is lodged an expansion core, and at least one longitudinal slot formed in the crural end and defining therein two legs which are deformable upon driving-in of the expansion core. The slot is provided with at least a pair of internal projections, respectively adjacent two slot longitudinal edges situated on either side of the axial plane perpendicular to the slot median plane, for guiding the expansion core during driving thereof.

Abstract: An improved box for packaging a pair of skis is provided, whereby the boxed skis will be held securely in place and will be protected against damage which may occur in shipping or handling. The skis are held relatively immobilized within the box without the need for inserting any spacers or the like into the box. The ends of the box are constructed to serve as impact absorbers should the box be dropped on its ends while the skis are in it. The box is shaped to provide improved nesting and stacking characteristics for storage prior to shipment.

Abstract: A mechanism for varying the power of a telescopic gun sight wherein the erector lenses are moved longitudinally of the sight. A cam sleeve is used in combination with plastic cam followers. Screws are passed through the cam followers and threaded into the erector lens cells to bias runners formed on the lens cells against the inside surface of the erector lens tube thereby loosening manufacturing tolerance requirements while providing smoother and more accurate lens movement and power change.

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: An assembly for fastening an insulation batt to a supporting surface. The fastening assembly includes an elongated fastener which is driven into the supporting surface with the head end of the fastener protruding from the supporting surface a distance approximately equal to the thickness of the batt of insulation. The batt is then impaled upon the protruding fastener and pushed down thereon until the head of the fastener protrudes from the surface of the batt remote from the supporting surface. A planar locking clip having a keyhole-shaped opening is then slipped over the fastener head and wedged between the fastener head and the batt. The locking clip is held in place by engagement with the fastener head, and prevents the insulation batt from pulling away from the supporting surface.

Abstract: A connector assembly for use in attaching a lanyard pull wire to the trigger of a powder-actuated tool which is mounted on a pole for overhead use. A tubular member, preferably a spring, receives a wire loop through its bore. The member slips onto the tool trigger, and the lanyard is connected to the wire loop. The connector assembly is thus easily removable and does not require extra tool modification to use.

Abstract: An extrudable ammunition priming mix with viscosity characteristics which remain relatively stable over an extended time span. The stabilized viscosity is obtained by incorporating an effective amount of guar gum into the priming mix. The primer thus displays improved pot life so that larger batches may be made and used over an extended period of time.

Abstract: A safety device, for a powder-actuated tool, which prevents the tool from discharging as the result of accidental impact or dropping. A moveable blocking member retains the hammer in the cocked position, despite disengagement of the sear, until displaced to an inoperative position by manipulation of the trigger.

Abstract: A magazine for holding a plurality of power loads for use in operating a power-actuated tool. The magazine includes a tube formed with a polygonal outer wall and is axially elongated. The inner part of the tube is formed with a plurality of separate open-ended channels in each of which a stack of power loads is disposed. Removable caps close each end of the magazine. The lower cap has a feed passage which, by rotation of the tube, can be aligned with each of the internal channels so as to allow discharge therefrom by gravity of the stack of loads disposed in the aligned channel. The feed passage can also be aligned with each of the radial webs between adjacent channels so that the magazine can be carried about free of the tool without danger that the loads can accidentally fall out of the channels. Rotation of the tube is keyed by the polygonal form of the outer wall of the tube.

Abstract: A power actuated tool comprising an expansion chamber for the combustion gases of a piece of ammunition placed in a combustion chamber.In the tool at least one substantially radial through hole is provided in the wall of the expansion chamber or of the combustion chamber and a bush which moves relative to the chamber is provided so as to be able to more or less completely expose the hole.

Abstract: 1.

Abstract: A loading device for a power-actuated tool which comprises a fixed support having an open recess adapted to receive the open end of a tubular propellant charge-retaining holder. A movable charge transporter is mounted on the exterior of the tool and contains a through passage which is movable between a charge-receiving position adjacent to the fixed support recess, and a charge-loading position adjacent to the firing chamber of the tool. Charges are gravity fed from the transporter to the firing chamber. The transporter moves to and from the loading position by pivoting through a pre-existing loading port in the tool.

Abstract: A propellant charge comprising a matrix of granular propellant having interspersed therethrough compacted molded bodies of propellant. The density of the granular propellant is less than the density of the molded propellant bodies. The use of the mixed propellant charge enables a cartridge case of given dimensions to be loaded with a greater weight of propellant thereby enabling the achievement of greater projectile velocities in any given gun-ammunition system.