Abstract: A reliable delay detonator device is disclosed which is thermally and chemically stable and which is also insensitive to mechanical shock and electrostatic charge. The device can be made with differing time delays and can be interconnected with other detonator devices for achieving multiple delay characteristics. A modification of the device is particularly suited to high temperature use. None of the devices contain any primary explosives, the device relying upon pyrotechnic delay materials and secondary explosives.

Abstract: Apparatus is disclosed for stopping a rotatable circular disc of the type which has a plurality of notches in the circumference thereof, such as may be used in game machines which have rotatable symbol carrying reels. The apparatus includes an improved index arm assembly which has the capability of cushioning the shock that occurs when its associated stop member engages a notch of the disc for stopping the same.

Abstract: The invention relates to an ashtray having improved cleaning and safety features. The ashtray comprises an outer shell in which is disposed a tray having a centrally located pedestal. The ashtray includes cylindrical openings for rapidly snuffing out smoking elements and also grooves formed in the tray which function to facilitate snuffing out the smoking elements.

Abstract: A method and apparatus for making jerky from food products including meat such as beef wherein the materials for making the jerky are ground to a desired consistency and blended with selected curing agents or seasoning, the cured or seasoned material then being extruded onto a freezer drum and compressed upon the drum to chill or freeze the material and to form a desired thickness for the jerky upon the drum, the frozen jerky then being removed from the freezer drum, cut to desired lengths and deposited upon a conveyor for passage through a drying chamber to first thaw and then dry the jerky strips in a continuous process. The jerky may also be smoked within the drying chamber if desired and transported to a packaging station from the drying chamber.

Abstract: Apparatus is described for heating tissue and which is particularly useful for treating tumors in humans and animals. A radio frequency a-c electric current is caused to flow between two electrodes or one electrode and ground directly through both the tumor and the surrounding tissue. The current is controlled to cause heating of the tumor and the surrounding tissue such that the tumor heats to a level sufficient to cause necrosis without substantial damage to the surrounding tissue.

Abstract: An accumulating conveyor is disclosed which employs a plurality of article carrying rollers defining a plurality of accumulating zones arranged along the conveyor. Clutch wheels disposed along the length of the conveyor are continuously rotated by drive belt means and are mounted for pivotal movement between driving positions wherein each clutch wheel engages at least one carrier roller in driving relation therewith and second nondriving positions spaced from the associated carrier rollers. At least one article sensor is mounted within each zone and controls pivotal movement of the clutch wheels in the next adjacent upstream zone so that stoppage of an article in any zone will effect disengagement of the clutch wheels in the adjacent upstream zone with substantially zero pressure engagement between accumulated articles on the conveyor.

Abstract: A bleeder kit for use in bleeding a master cylinder in a hydraulic brake system is disclosed wherein the kit includes a number of unidirectional flow valves and a corresponding number of flexible conduits suitable to connect a valve to each outlet port on the master cylinder housing, with a flow conduit connected to each valve so as to unidirectionally direct brake fluid from the master cylinder bore into the master cylinder reservoir upon pressurization of the brake fluid within the master cylinder. A hose clip is releasably mountable on the reservoir and operative to guide the discharge ends of the flow conduits into the reservoir.

Abstract: A multi-stage system is disclosed for removing particles from a gaseous medium and comprises an upstream precipitating stage of spaced corona discharging wires between parallel collecting plates, followed by a downstream precipitating stage having one or more electrically charged shells with flat sides generally parallel to collecting side plates for providing a uniform electric field in the medium carrying space, the sides of the shell having openings through which ions generated in the interior pass into the gaseous medium. A corona discharge apparatus inside the shell produces the ions at predictable, generally uniformly spaced locations. Alternative embodiments of the system include another stage located ahead of the upstream stage for removing the larger particles in the gaseous medium which can comprise a gravitational precipitator, a cyclone separator, a low voltage electrostatic precipitator or a low voltage ion beam generator.

Abstract: A thread forming screw having a helical thread and a tapered lead-in section with a polygonal cross section is formed from a conventional blank by rolling the blank between a pair of thread rolling dies having means thereon to form alternating convex lobes and concave relief areas in the frusto-conical surface of the blank. Thus, the screw may be formed with a polygonally shaped threading end without a prior working of the blank's frusto-conical surface. Curved ramp surfaces smoothly interface the lobes and concavities to allow metal in a workpiece being threaded to roll into the concavities thereby reducing the torque needed to form a thread in the workpiece.

Abstract: In the disclosed assembly of pocketed springs, adjacent strips of the pocketed springs are joined together by connecting the pocket material of adjacent strips together between two consecutive springs of the two strips. Each interior strip of springs in the assembly is connected alternately to the adjacent strip on either sides, and in the preferred arrangement depicted in the drawings, the connections of each such strip to its adjacent strip on either side are made at intervals of two springs, and near both ends of the springs.

Abstract: A method and apparatus for removing sulfur dioxide from a gas stream such as a stack gas stream utilizing an aqueous slurry of manganous hydroxide as an absorbant and utilizing a regeneration of manganous hydroxide from manganous sulfate thereby produced.

Abstract: Individually pocketed upholstery springs for assembly into so-called Marshall construction, in which the pockets containing the individual springs are formed between the overlaid plies of a two-ply strip of material by lines of separate individual welds which connect the plies together.

Abstract: Apparatus for and method of pressing, draining and preparing cheese curd for curing is disclosed. The apparatus and method are particularly adapted for forming large sized blocks of cheese. Cheese curd is placed in a form for pressing and draining. At least one blade, in the form of an elongated wedge and having slots in its face, is disposed in the curd to uniformly drain the curd while it is being pressed. The blade is removed and the curd is subjected to further conditioning and is packaged for curing in containers.

Abstract: A prosthetic element is securely joined to a natural element of the human body using a ductile metal alloy coupling member which has a transition-temperature range and which has been deformed from its original shape at a temperature below its transition-temperature. Heating the coupling member to a temperature above the transition temperature, as by passing electric current therethrough, causes the coupling to try to return to its original shape and effect a secure joinder.A prosthetic device for long-term implantation in the human body can be made by using such a coupling element to join a circumscribing member, e.g., a sewing cuff, to a generally tubular, rigid portion of a prosthetic device, e.g., a heart valve body.

Abstract: A power driven snow bob is provided with a detachable fuel tank which can be readily attached and reattached in a rapid and expedient manner in a cold outdoor environment. To assist in retaining the fuel tank, it is formed with a groove on its under surface which mates with a cross bar portion of the frame and with a sliding interlock portion at one end for sliding in an interlocking relationship with a retaining means on the frame. At the other end of the fuel tank, a quick connect and disconnect means comprising a push-pull retaining pin is inserted through aligned apertures in a fuel tank and a grommet on the fuel tank. The fuel line is detachably connected to a fitting having a shut-off valve.

Abstract: A method and apparatus for positioning a boring machine relative to an engine block or the like has a base plate suitable for arrangement upon a deck surface of the block, the plate being formed with openings above each of the cylindrical bores as well as in alignment with threaded passages in the block. Preferably, bolts are threaded into the block to secure the base plate so that, during reboring, the bolts distort the block about the bores in a similar manner as during engine operation. Also preferably, adjustable means are arranged between the base plate and the deck surface of the engine block in order to position the base plate in precise alignment with the main bearing axis of the engine block so that the bores are formed perpendicularly to the main bearing axis.

Abstract: A surgical device for joining severed body vessel walls comprises a pair of annular flanges each formed of a plastic material which is compatible with the human body. Pointed pins on one of the flanges are pierced through the vessel walls and inserted into apertures in the other flange to hold and locate the vessel walls. Threaded mounted pins on one of the flanges are inserted through openings in the other of the flanges and threaded nuts are threaded onto the threaded pins to clamp the vessel walls together with a clamping pressure. The clamping pressure may be adjusted by turning the threaded nuts. Clamping pressure may be relieved to prevent a necrotic condition by turning the nuts in the turn off direction.

Abstract: A gas analyzer of the non-dispersive infrared type is described. An infrared beam passing through a sample cell containing a gas mixture to be analyzed is detected. The resulting electrical signals are processed to produce an output indicating the concentration of the constituents of the gas mixture in the sample cell. The gas analyzer includes provision for temperature stabilizing both a rotary filter wheel and the detector, and for compensating the output of the signal processor for variation in the absorption characteristics of gas with temperature. The emissivity characteristic of the infrared energy source substantially compensates for wavelength dependence of the detector response. The motor drive for the rotary filter wheel is servo-controlled in accordance with synchronizing pulses developed directly from the detector output.

Abstract: A peristaltic pump is disclosed which includes a base plate having a pair of reaction members pivotally mounted thereon for movement between open positions spaced outwardly from a rotor about which a compressible flow tube is disposed and closed positions maintaining the flow tube in predetermined relation to the rotor. Each reaction member has a shield plate thereon adapted for cooperation with the shield plate on the other reaction member so as to substantially cover the rotor area when the reaction members are in their closed positions. A locking nut mounted on the base plate is adapted for camming cooperation with the reaction members to draw them into predetermined closed relation relative to the tube and rotor.

Abstract: Apparatus for providing various different lines of perforations in a paper sample for use in a testing apparatus. The perforating apparatus includes a replaceable blade mounted on a base. A roller is mounted on the base for movement along the blade. Means are provided for adjusting the pressure applied by the roller to the paper sample disposed between the blade and roller.