Abstract: Disclosed is a repeating firearm having a vertically slidable block mounted behind the barrel. The upper portion of the block carries a firing pin, and one or more cartridge holding chambers are provided in the lower portion. A cartridge ejector is mounted at the rear of the barrel. The block is slidable between a lower position permitting operation of the ejector, an intermediate position aligning the firing pin with the barrel, and one or more upper positions aligning said cartridge holding chambers with the barrel for transferring cartridges from the chambers to the barrel for firing. In one embodiment a tubular magazine is provided beneath the barrel for holding additional cartridges end-to-end and means are provided for transferring cartridges from the magazine to a cartridge holding chamber in the block, for ultimate transfer therefrom into the barrel.

Abstract: The invention concerns improvements in the process of U.S. Pat. No. 3,870,625 for treating polluted lubricating oil. Previous to said treatment, the used lubricating oil is injected, preferably at a plurality of levels, into at least one reservoir containing liquid propane, where it is left for a time necessary for its dissolution and for its primary separation from the insoluble impurities.

Abstract: Disclosed is an improved saddle comprising a saddle tree which is padded and upholstered on its top. The saddle tree is attached to a padded and flexible saddle skirt by connecting flaps which are affixed to the top of the skirt and which overlie marginal portions of the upholstered tree. Screws or other fasteners are employed to connect the flaps to the upholstered tree. Preferably four flaps are provided, one at each corner of the tree. Cinch rings are mounted on the forward pair of flaps. A stirrup strap is passed through slots in the tree about the middle thereof.

Abstract: Disclosed is an apparatus for organizing and simplifying the development of photographic film. It includes a housing containing a tank for a constant temperature bath, which is provided with a heater and an air agitation line. Several narrow developing tanks for chemicals and rinses are suspended in the bath tank, and each is supplied with an air agitation line. Access to the developing tanks is provided through slots in the top of the housing. An equipment compartment is provided within the housing to accommodate an air pump, an air distribution manifold, bath heater, a timer control switch and the like. Preferably, a drying compartment is also provided in the housing, containing a fan type dryer. Access to the drying compartment is provided through a narrow slot in the top of the housing. Film to be developed is immersed sequentially in the developing tanks (and the dryer) on plates having film gripping clips thereon.

Abstract: An infeed assembly or mechanism for advancing wood sticks of random length through an end shaping machine or woodworking apparatus that has at least one end shaper and means for holding the sticks against displacement, while permitting travel thereof through the machine, in coaction with an underlying table that supports said sticks during the shaping of their ends as well as throughout the advancement thereof; said infeed assembly is composed of a feed shuttle mounted for reciprocal movement in a generally elliptical path or rhombic orbit longitudinally of the table and having upstanding means for projection above said table and engagement with said sticks during the feed stroke and for retraction below said table during the return stroke of said shuttle.

Abstract: Disclosed is an improved surge stabilizer for reducing and controlling pressure surges and vibrations which cause destructive wear to pumps. The stabilizer includes a cylindrical case which is placed in pressure communication with the pump working fluid, and an internal pressurizable cylindrical cartridge having a flexible sidewall and end caps, one of which is attached to one end of the case. A control rod is slidingly fitted in bores in the caps, thereby eliminating the tendency of the cartridge to "piston" longitudinally. Further control of the compression characteristics of the cartridge is obtained by providing multiple plies of equal length in the sidewall of the cartridge, and by utilizing reinforcing cords in the plies wrapped at a selected bias or angle.

Abstract: Disclosed is a torque transmitting and blocking device which includes a cylindrical drum, a pair of arcuate shoes positioned within the drum, and a spanner bar extending between the shoes to one side of the axis of the drum. On the other side of the drum axis the shoes are displaceable toward each other, and may conveniently be lightly biased apart. The shoes have surfaces, which may include holes, lateral or transverse projections, or the ends of the shoes, through which rotative forces may be transmitted from sources external of the drum and through which the shoes may retransmit such forces. Application of a rotational force through such a surface into a shoe in a direction tending to displace the shoes toward each other results in rotation of the shoes and bar within the drum, and consequent transmission of torque, if desired, out of the drum through another shoe surface.

Abstract: Disclosed is an improved knitting machine in which special steps have been taken to provide for close correlation of the operation of the knitting filament in-feed equipment and the knitted fabric out-feed equipment with the speed of the knitting head itself, to produce a more uniform and better quality knitted product, and to reduce the danger of filament or fabric breakage caused by jamming at the knitting head or at one of the pieces of feed equipment. These steps are particularly important in the knitting of wire mesh fabric, because wire filament is less stretchable than most textile filaments and thus less able to compensate for variations in the speed of the various pieces of equipment acting upon it as it passes through the machine. In particular, the filament in-feed equipment, the fabric take-up equipment, and if desired, the fabric take-down equipment, are all driven by power trains which include the knitting head.

Abstract: Disclosed is a cable tester for multi-conductor cables having a constant current power supply and circuitry for connecting the conductors of the cable in series with one another across the power supply simultaneously. The circuitry includes "open" detector lines, one connected in parallel with each cable conductor, and "short" detector lines, one connected in series with each conductor. The "open" detectors and "short" detectors have light sources in them, the "open" detector lights being normally off and the "short" detector lights being normally on. The "short" and "open" lights are arranged in an easily interpreted display. When only one end of a cable is accessible for testing, means are provided for connecting the cable conductors in selected pairs for testing by the test circuitry.

Abstract: Disclosed is a shower head dispenser for bath oil and the like which includes a body member with an axial bore adapted for insertion between a shower line and a shower head. The body member has two longitudinally spaced apertures or transverse bores in its side wall which communicate between the axial bore and a detachable oil container. It has a dam extending transversely across the bore. One of the apertures intercepts the axial bore at the crest of the dam, and the other aperture intercepts the axial bore upstream of the dam. The oil container has an integral valve stem thereon which seats in the end of the downstream transverse bore, and metering is achieved by rotation of the container. When water passes through the axial bore of the body member, the greater pressure at the upstream bore or aperture forces oil out of the container through the downstream bore or aperture into the axial bore at the dam, where it mixes with water enroute to the shower head.

Abstract: Disclosed is an improved vapor generator of the kind in which a fuel-air mixture is combusted in a chamber through which water is flowed. The water acts as a coolant for the unit and is vaporized or converted to steam in the chamber in the presence of the flame. The steam formed from the feed water, the steam formed as a product of combustion, and the non-condensibles remaining after combustion issue from the chamber as a hot mixture suitable for a variety of uses, such as process steam, comfort-heating steam, and the like. The improvements include means for dividing the air feed into two parts, and means for forming a well-mixed stoichiometric mixture of fuel and the air of one part, which mixture is ignited and burned in a prechamber surrounded by and cooled by the air of the other part. The second part of the air is fed into the mid-region of the so-formed flame in the main chamber to lean it out and insure completeness of combustion, reducing production of carbon monoxide to extremely low levels.

Abstract: Disclosed is a security astragal for double door assemblies which includes a gear-toothed rod rotatably mounted in the meeting edge of one of the doors, and a rod-engaging blade mounted on the meeting edge of the other door. Both the rod and the blade preferably extend for the full height of the door. When the doors are swung relative to each other, the blade engages the teeth on the rod and rotates the rod sufficiently to enable the blade to move partly or fully past the rod. When the doors are in closed position, the blade and rod are in gear-like interengagement, making it impossible to insert a coat hanger or other jimmying tool between the two doors for manipulating the latch mechanism on the inside of the doors.

Abstract: An internal electrical interconnect coupler of an electrical conductor assembly for use with a tubular fluid conductor composed of lengths of pipe having their ends interconnected in spaced relationship by external couplers wherein an electrical conductor for said assembly is provided by thin ductile electrically conductive tubes disposed within the pipe lengths and electrically insulated therefrom by complementary pliant dielectric sheaths which envelope said tubes. Flared extremities of each sheathed tube conform to internal end portions of each pipe length so as to anchor said tube against relative displacement.

Abstract: Disclosed is an agricultural roller useful, for example, in closing and packing furrows after they have been sowed by a seed drill. The roller includes a generally rectangular frame equipped with several roller mounting stations for mounting the desired number of pairs of rollers for a particular use in side-by-side alignment. The frame is also equipped with alternate towbar mounting stations and means for positioning the towbar appropiately for the number of roller pairs employed, and with mounting stations for outrigger frames carrying additional roller pairs when desired. The roller pairs are so mounted on the frame (and outriggers) that they are pivotable in a vertical plane transverse to the rolling direction to closely follow the land contour.

Abstract: Disclosed is an improved electrical terminal block having an insulative base with a pair of parallel fixed links mounted thereon by staked connector posts of improved configuration. A movable link is slidingly mounted on one link and engageable with the other to establish a current path from one post to the other. The movable link has a lock screw for locking the link in connected or disconnected position. The base of the block has sidewalls which surround at least a portion of the slidable link throughout its path of travel. The slidable link is proportioned and configured with respect to the block and fixed links so that it is in a mechanically secure and stable condition in both the connected and disconnected positions.

Abstract: An apparatus for unwinding, measuring and cutting a predetermined length of pliable material, such as carpet, from a supply roll and for rewinding the unwound length into a roll, having unwind (first) means for rotatably supporting the supply roll and unwinding and advancing said material to a support (second) means which receives and supports said advanced unwound material during measuring and cutting of the predetermined length therefrom.

Abstract: Disclosed is an insulated metal roofing system which includes channel shaped roofing panels locked together in side-by-side relationship at the upwardly projecting edges of the channel legs by means of interlocking flanges, with legs of adjacent panels in abutting relationship. In some embodiments specially configured clip members engage the roofing panels in their regions of abutment and project downwardly therefrom. Channel shaped ceiling panels are hung in side-by-side relationship on the clip members, and part or all of the space between the roofing panels and the ceiling panels is filled with insulation. The clip members are preferably constructed to provide a selection of points of connection between them and the ceiling panels to thereby provide a selection of spacings between the roofing panels and the ceiling panels. In another embodiment, the ceiling panels are connected directly to the roofing panels.

Abstract: Disclosed is a displacement pump especially suited for use in very small well bores. The pump includes a piston working in a cylinder, driven by a rotating cam shaft having closed loop cams for effecting reciprocation of the piston. The rotating cam shaft carries spool valves for positive control of liquid flow into and out of the pumping chambers. Also disclosed is a transmission mechanism especially suitable for use in reducing the speed of an electric motor power source to a level suitable for driving the cam shaft. The pump includes a small diameter high speed electric motor, on which is mounted the transmission mechanism, which in turn carries the pumping mechanism. An electrical power conduit runs through the pumping mechanism and transmission mechanism to the motor.