Abstract: An apparatus for processing chain link fabric including a welding assembly and/or a compressing assembly. The welding assembly is configured to weld together wire-end portions of the chain link fabric. The welding assembly includes a guiding assembly having a finger and a cam, which are configured to restrict the movement of the wire-end portions while the welding assembly welds them together. The finger and the cam are configured to move relative to the wire-end portions both before and after the wire-end portions are welded together. The compressing assembly is configured to compress the wire-end portions after they are welded together. The compressing assembly includes a stabilizing assembly having a stabilizing die, which is configured to interface with the chain link fabric and to restrict the movement of the welded wire-end portions while the compressing assembly compresses the welded wire-end portions.

Abstract: Chain link material for use in fences and other various applications are formed with flattened end portions so as to improve the handling and safety characteristics thereof. The flattened end portions of the chain link fence are formed by bending, trimming, welding together and then painting cut ends of the wire forming the chain link material. This bending, trimming, welding and painting is performed in a series of assemblies held on one or both sides of a chain link material being indexed through a weaving machine. The series of assemblies are moveable into and out of contact with the cut ends of the wires in the chain link material so as to bend, trim, weld together and paint the welded together ends.

Abstract: An improved chain link fabric having flattened end portions that are stronger and safer and a method and apparatus for forming the flattened end portions of the fabric. In a preferred embodiment, the flattened end portions are formed by cutting woven chain link fabric and bending, welding and compressing two adjacent wires end portions that extend from elbows of the cut chain link fabric to form a joint that is lap welded. By compressing the two adjacent wire end portions, the sharp edges of the wire end portions are minimized or eliminated and the joint is made safer and stronger. Advantageously, the present invention provides a chain link fabric having strong flattened end portions that do not pose the risk of serious harm to installers and individuals who come into contact with the flattened end portions of the chain link fabric.

Abstract: A hermetic mail handler comprising a container frame, a door and a plurality of walls having at least a pair of gloves recessed in a wall in which a user inserts his/her hands therein in order to manipulate mail. Further, a material handling system carrying envelopes, packages and the like is capable of running into and through the hermetic mail handler. An emergency button and an emergency precautions list is mounted onto the mail handler thereby halting the mail manipulation process and providing instructions for such situation.

Abstract: Chain link material having a coating thereon for use in fences and other various applications are formed with knuckled ends so as to improve the appearance thereof. The knuckled ends of the coated chain link fence are formed by knuckler assemblies held on either side of the coated chain link material as it moves through a weaving machine. The knuckling assemblies are moveable into and out of contact with the cut ends of coated wires woven into the chain link material, and include rotatable bend elements which contact an extended length of and bend the cut ends without cutting, marring or scraping the coating.

Abstract: Chain link material for use in fences and other various applications are formed with flattened end portions so as to improve the handling and safety characteristics thereof. The flattened end portions of the chain link fence are formed by trimming, bending and then securing together cut ends of the wire forming the chain link material. This trimming, bending and securing is preferably performed in end flattening assemblies held on either side of a chain link material weaving machine, which assemblies are moveable into and out of contact with the cut ends of the wires in the chain link material so as to trim, bend and then secure the bent ends together by twisting, welding or clipping the same together.

Abstract: An improved system for operating a chain link fence weaving machine. The system includes an electronic motor coupled to a main spindle shaft of the weaving machine. A trough is disposed adjacent to a weaving blade attached to the main spindle and coupled to the weaving machine. The trough receives two intercoiled needles (picket) from the weaving blade for weaving the fence. The trough has first and second opposing portions positioned to receive the picket therebetween. A retaining slot extends between the first and second portions. The radius of the first portion of the trough is less than the radius of the second portion thereof to prevent the two intercoiled needles being woven in the trough from extending into the slot. An actuation mechanism opens and closes the retaining slot to frictionally engage or release a portion of the fence held in the slot. A control system is coupled to the motor for controlling the fabrication rate of fence being woven.

Abstract: A cementitious composition capable of forming an early high strength cement when admixed with a liquid comprising a cementitious material of a specific chemical composition, surface area, and particle size distribution, the method of making such cementitious composition, and cements comprising said composition.

Abstract: A cementing composition for forming a low density cement slurry comprising a hydraulic cement and shot coke.

Abstract: A mechanism for holding a barrel in a mortar unit having a ring calibrated in relation to the diameter of the barrel is disclosed. The ring has a tightening mechanism for locking or releasing the ring and the barrel of the mortar. The ring also has a mechanism for avoiding an involuntary release between the barrel and the ring resulting from firing vibrations. Such a mechanism makes it possible to change the firing angle exclusively by manipulating the tightening mechanism without the need for disassembling or handling the ring-barrel assembly.The tightening mechanism is made up of a shoe guided in the ring and movable radially to the barrel by a cam activated by a tightening lever.The mechanism for avoiding an involuntary loosening is made of several pressure washers which press against the shoe. They exert a pressure which can be be regulated by a screw. Several springs are mounted in the screws of the pressure washers and counteract the firing vibrations.

Abstract: A mortar carrier projectile that is characterized for its having a front body with a front head carrying a fuze, and a cylindrical rear body carrying the charge; a rear body of approximately a tapered head shape; a stabilizing tail joined to the rear body, and linking means between the front body and the rear body which fracture by shearing.

Abstract: Bipod mortar stand, having one support mechanism and one lifting mechanism, is disclosed. The support mechanism has two legs forming a bipod. Each leg is pivoted at one end to a bracket fastened to a central leg. Each leg has drive stops on the other end. A connecting rod connects each leg to an open ring mounted on the central leg. The ring moves up and down on the central leg and can be fastened on the central leg.The lifting mechanism is formed by the central leg and telescoping tubes and an interior tube is integral to a locknut and an exterior tube is integral to the mortar holding structure. An intermediate tube is capable of linear movement with respect to the other two tubes. A lifting device, mounted on the intermediate tube has conic gears, one conic gear is activated from an exterior crank and the other is integral to a shank which moves with the gear box and the intermediate tube. Anti-rocking guides are arranged on the exterior tube, the intermediate tube and the shank.

Abstract: A supersonic mortar grenade is disclosed. Such grenade has a front portion that possesses a first conical section which is tangential to a second ogival section. The second ogival section is tangential to a cylindrical center area. The cylindrical center area is tangential to a rear portion which is made up of a first convex section and a second concave section, the convex section being tangential to the concave section. The concave section of the rear is tangential to a cylindrical finned tail.

Abstract: A recoiling mortar mounted on a revolving platform which comprises a barrel resting at the rear upon a first support attached to a sleigh which holds said barrel, where the whole assembly slides upon a chassis which rests on the revolving platform, and is provided with a fluid operated cylinder attached to the chassis and its plunger to the sleigh.