Abstract: A socket-type electrical connector adaptable for use with connector pins having different size and spacing parameters and with different size electrical cables includes a housing in which a replaceable contact sub-assembly and replaceable strain relief element are located. The contact sub-assembly includes an interstitial contact carrier support member on which are positioned a plurality of bow contacts in opposed parallel rows. The strain relief mechanism includes a pair of aligned opposed cavities, one in each of a pair of opposed housing parts, such cavities opening toward one another and the insert element in the form of a T-shape cross-section elongated member is positioned in one of the cavities for establishing a tortuous path for the electrical cable upon entry into the housing, whereby the electrical cable is at least frictionally retained in the housing by the strain relief mechanism.

Abstract: A hydraulic system and control valve assembly therefor characterized in that it provides a two wheel pressure compensated hydraulic drive for mobile equipment in forward or rearward direction at any speed up to maximum as determined by the operation of the control valve assembly. Said control valve assembly is further characterized in that it incorporates an override for the pressure compensating means to achieve steering control by decreasing the rate of flow of fluid to either wheel motor or to achieve braking action in conjunction with a counterbalance valve in the motor return circuit by decreasing the rate of flow of fluid to both wheel motors.

Abstract: A fishing rod including an elongated, hollow, generally tapered cylindrical rod portion comprised of a plurality of blanks having their ends telescopingly connected to each other, and a holder portion to which a reel is mounted and including a universal guide for guiding fishing line from reels of different sizes into the hollow of the rod portion with a minimum amount of rubbing friction against the line and without exposing the line to any sharp edges that might cut the line or cause the same to bind. The reel is secured to the holder portion by an over-center cam lock mechanism which urges a rigid plate with resilient cover strip into tight clamping engagement with the reel base mounting plate sandwiching the latter against the resilient cover strip and a wall portion of the holder.

Abstract: A floating tool holder for a reamer or like tool characterized in that a shank member with respect to which a tool drive member has a floating drive connection has a centralizing pin fixed therewithin which provides a spring centering device to yieldably position said drive member coaxially of said shank member, and which axially retains said drive member for lateral floating movement without axial play.

Abstract: Novel aromatic nitrile-containing polyester, polyamide, and silicone polymers are described. These nitrile-containing polymers are heat resistant and are used as fibers and resins and to prepare fiber-reinforced composites exhibiting outstanding mechanical strength at room and particularly elevated temperatures. Styrene-butadiene and styrene-acrylonitrile copolymers are described wherein at least some of the phenyl groups contain nitrile substituents. Composites having various shapes such as tires are described utilizing these nitrile-containing copolymers reinforced with fibers either containing aromatic nitrile groups or coated with resins containing nitrile substituted aromatic groups. These composites are useful in a variety of applications. The procedure for preparing such composites is disclosed.

Abstract: A sheet metal face for a structural panel has at least one edge portion bent and folded to define a recessed double-thickness flange. A plurality of longitudinally-spaced slots in the flange are used for attaching mounting members having upwardly facing hooking projections receivable in a hook pocket integral with a wall-hanging structural unit. A non-metallic protector strip may be interposed between the hooking projections and hook pocket. The structural unit has bottom and rear sheet metal panels with an integral assembly flange and assembly hook. A load bar assembly may be interposed between the mounting members and the structural unit.

Abstract: An ice fishing device has a rod and reel member pivotally connected between its ends to the upper end of a mast member which has its lower end portion firmly anchored in an ice mound (initially firmly packed wet snow or slush) adjacent to the hole in the ice, the rod and reel member being retained in normal fishing position by locating the pivotal connection forwardly of the center of gravity of the rod and reel member whereby a downward pull on the tip of the rod portion by a striking or hooked fish will swing the rod and reel member against the gravity force moment to signal the fisherman to reel the fish in. The pivotal connection between the rod and reel member and the mast member enables folding of the device to compact lateral and longitudinal size.

Abstract: Excessive pressure is relieved in a fluid actuator by controlled destruction of an internal extensible diaphragm without damage to the exterior structural integrity of the actuator. Upon occurrence of such abnormal excessive pressure in the actuator pressure chamber, the diaphragm, which is otherwise substantially supported, is permitted to deform at a known location until fracturing thereof occurs to release fluid from the pressure chamber. In one form the invention comprises an opening in the actuator guide cap and in other forms comprises openings in the actuator piston or an enlargement in part of the guide cap.

Abstract: An artificial hand for a person whose hand stump includes the metacarpus or a portion thereof characterized in the provision of stump and forearm gripping portions which are pivotally connected together on opposite sides of the wrist for up and down pivotal movement of the stump about the corresponding axis of the wrist, said forearm gripping portion including a detachable thumb-like forward projection from either or each side thereof (for use on the left or right forearm), and said stump gripping portion having forwardly extending curved fingers which, upon pivotal movement of the stump-gripping portion enables receiving and gripping of various objects between the fingers and the forward projection or projections. The artificial hand herein is further characterized in that the aforesaid pivots also permit lateral pivoting of the stump gripping portion and fingers thereof.

Abstract: A single building contains trash processing, trash burning, gas treating, and solids treating systems for substantially pollution free disposal of combustible trash material. The building contributes functionally to the gas treating system while presenting an aesthetically pleasing appearance. A novel aspirator for mixing two fluids and a novel filter arrangement also form part of the gas treating system in such manner that need for incorporation of the conventional smoke stack is not required.

Abstract: A tire press unloader for use with a tire press of the standing bladder type which includes a vertically extensible elevator stanchion pivoted at its lower end at the back of the press and pivotally supporting a conveyor platform. When the press is opened and the cured tire has been elevated by the bladder mechanism, the conveyor platform is positioned beneath the cured tire on firm supports to provide an unyielding horizontal platform engaging and supporting the tire as the bladder is stripped therefrom. When the green tire is on the platform clear of the bladder, the platform elevates and then tilts backwardly to lift the cured tire over the top of the standing bladder mechanism. The tire then rolls down to a tire stop and the platform retracts. Cam stop means may be provided as the platform descends with the tire causing the platform to tilt at least partially to clear the motor housing or other parts of the press.

Abstract: A pressure regulator especially suited for cryogenic fluid and two-phase (gas and liquid mixture) flow application such as an aircraft fuel tank inerting system wherein the regulator controls the pressure and rate of flow of inerting fluid, e.g. nitrogen, into the fuel tank to pressurize the tank and to inert the tank ullage gases to render them noncombustible, said regulator being characterized in that the flow control valve has large and small variable area orifices which operate in sequence to minimize overshoot and undershoot, in that resonant oscillation is predictably damped and the damping remains substantially constant despite wear or change in clearances of the parts, and in that the valve actuator is thermally isolated from the cryogenic fluid flow path.

Abstract: Means for repairing or forming structural bodies of self-hardening fluid cement mortar, in a subaqueous or other situs, utilizing a body-forming cavity including body-shaping walls of porous fabric in combination with openwork matrix means fixedly positioned at the situs. The matrix means is received within the body-shaping walls of porous fabric and connected thereto by tension-restraining tie-elements of predetermined length for controlling limited oppositely outward distension of the opposing walls away from the matrix as determined by the length of the tie-elements, upon reception of fluid mortar or like cementitious material within the body-shaping walls to expand the walls thereof to such given shape and size of the body formed by the cementitious material.

Abstract: A probe for testing logic signals or the like occurring in electric circuits and for indicating whether such signals are at low, intermediate or high level or that an open circuit exists in the tested circuit includes first and second parallel connected display portions, the former having a first liquid crystal indicator in series with a battery the latter including a second liquid crystal. The first liquid crystal is normally energized when the difference between the battery voltage and the received signal being tested exceeds the threshold level thereof, and the second liquid crystal is normally energized when the voltage of the received signal being tested exceeds the threshold level thereof, such energization indicating whether the tested signal is at high or low level. De-energization of both liquid crystals indicates that the tested signal is at an intermediate level, also known as the deadband region between low and high level signals, or that an open circuit exists in the tested circuit.

Abstract: A mold clamping mechanism for an injection molding machine characterized in that a relatively large mold clamping cylinder has a passage in its piston intercommunicating the head and rod ends of said mold clamping cylinder during stroking of said piston by a relatively small actuating cylinder for flow of oil from said head end into said rod end and into a makeup fluid tank having a capacity corresponding to the displacement of the piston rod of said mold clamping piston and vice versa during the respective mold opening and closing strokes. To effect mold clamping at required tonnage, the mold clamping cylinder has a port through which fluid under high pressure is admitted not only into the mold clamping piston to act on a fluid pressure actuated valve therein to close said passage, but also into the head end of the mold clamping cylinder to pressurize the fluid trapped therein by the closing of said passage.

Abstract: A differential pressure sensing valve has an axially shiftable spool including axially-spaced spool areas on which a pair of pressure sources connectable with such valve act in a predetermined direction with spool shifting force. Biasing means normally biases such spool with spool shifting force in a direction opposite to the predetermined direction. The opposite spool shifting forces are substantially balanced over the normal operating range of the pressure sources for maintaining such spool in an operating position for normal flow of fluid through the valve. Such opposite spool shifting forces are substantially unbalanced for shifting such spool out of such operating position when the pressure sources substantially deviate from their normal operating range.

Abstract: A flexible self-retracting coiled tubing having desirable recoil strength and elastic memory is described. The coiled tubing is adaptable especially as a self-retracting air tube for transmitting fluids under pressure to pneumatic equipment. The coiled tubing comprises an extruded seamless plastic tube prepared by extruding a mixture comprising a chemically extended polyester and from about 10% to about 50% of a polybutylene terephthalate polymer.

Abstract: A highly sorbent iron oxide is prepared by reducing hematite to magnetite followed by a low temperature oxidation prior to contact with sulfur dioxide. The oxidized solids obtained in this manner are a more effective form of iron oxide sorbent for the oxides of sulfur.

Abstract: A cargo tie-down anchoring apparatus for a refrigerated van and the like comprising series of resiliently biased eye bolts disposed in grooves along opposite sides of the floor of the van, which eye bolts extend through the floor and transverse floor supporting flanged beams, said eye bolts, when not in use, being in retracted position in the respective floor grooves so as not to interfere with loading and unloading of the van with the usual perishable cargo and when in use, being elevated above the floor level and engaged by hooks at the ends of flexible strap assemblies having buckle means for tightening the strap assemblies over heavy cargo such as steel coils.

Abstract: A wire tightener or puller includes a frame with a shaft journalled between and through holes in the sides of the frame. Projections on the shaft adjacent the inside of the frame maintain the shaft in position and cam strike stops in the frame adjacent the holes cooperate with the projections to act as a ratchet precluding the shaft from rotating in one direction passed the strikes. One wire end is secured to the frame and the other to the shaft with the latter being provided with a squared or flattened end so that it may be rotated in the one direction permitted with a suitable tool to wind one end of the wire on the shaft with the projections camming over the cam strikes. The resilience of the frame permits the sides to separate slightly enabling the projections to cam over such cam strikes.