Abstract: A bicycle or other cycle-type vehicle support system for maintaining the bicycle in a generally upright position on a training device or the like while still permitting some movement and leaning of the bicycle to simulate normal riding conditions. The support system includes a pair of elongated legs movably connected to the training device and permitted to undergo some pivoting and/or bending action with respect to the training device, with suitable mechanism being provided for easily coupling the system to the bicycle to effect such support function. The system permits a leaning action of the vehicle, for example, as it is being ridden on the training device while still providing substantial upright support for the vehicle.
Abstract: A test specimen grip assembly for holding a metallurgical test specimen in a test apparatus operative to apply tensile force to the specimen. The grip assembly includes plural tapered inserts which apply to the specimen a radial wedge gripping force that increases as the tensile force is increased. The inserts are received in a holder mechanism including a cup-shape holder within which a hemispherical ring is rotatably seated for alignment purposes, and a frusto-conical opening is provided in the ring for receiving the inserts. In an alternate embodiment an adaptor is connected to the specimen to facilitate securing the latter in the test apparatus.
Abstract: A precision heavy duty indexer characterized in that the indexing member thereof is positively locked to the indexer housing in desired precise axial, radial and angular indexed position by interengaged gear means of said indexing member and said housing, and is unlocked for indexing movement by disengaging said gear means, the gear means of said housing being carried by the outer peripheral portion of a laterally flexible pneumatic or hydraulically-actuated diaphragm having its inner peripheral portion fixed to the housing.
December 13, 1976
Date of Patent:
March 28, 1978
Erickson Tool Company
Milton Lloyd Benjamin, David Dean Walker, Wilbur Nelson Miles
Abstract: An electrical connection for all of the exposed concentric neutrals of underground direct burial power cables made from a kit including a soft, completely tin-coated, L-shaped copper sleeve wrapped about the cable, the short leg of the L forming a projecting tab. A ring-tong crimp type connector is bolted to the tab and the entire bolted connection and crimp connector is dip soldered. After the sleeve is wrapped about the cable, it is surrounded by a rubber gasket field cut to fit. A hose clamp having a special metal shim constricts the sleeve causing good electrical contact with all of the exposed concentric neutrals and secures the sleeve in place. A lead wire is then crimped in place in the crimp type connector.
Abstract: A grease gun characterized in that a dispensing head assembly having a lever-operated piston pump is screwed onto the head end of a grease-containing cylinder and in that a spring-biased plunger and rod assembly inserted into said cylinder from the head end thereof with a rear end cap engaging an inturned flange at the rear end of said cylinder is operative to feed grease from the cylinder to the pump.
Abstract: A grease gun of the type wherein a dispensing head assembly having a lever-operated piston pump is screwed onto the head end of a grease-containing cylinder and wherein a spring-biased plunger and rod assembly in said cylinder is operative to feed grease from the cylinder to the pump, said dispensing head assembly being characterized in that the head cap thereof has diametrically opposite holes through the side wall thereof in which a pump cylinder of circular cross section is firmly supported, in that a sheet metal clevis for a link of the pump-operating lever has its base secured as by welding on the end wall of the head cap, and in that a check valve body is secured in a cross bore adjacent the closed end of the pump cylinder and extends through aligned holes in the head cap end wall and the clevis base to provide a pump outlet to which the grease dispensing tube is connected, said check valve body having a shoulder engaging the clevis base to prevent breaking away of the clevis from the head cap end wall
Abstract: Roller cover support consists of blow molded sleeve having plural protruding ribs to frictionally retain the roller cover in place. The ends of the sleeve are molded to receive and mount end caps thereon which include suitable bearings for the roller frame shaft and provide some support against collapse or flattening out of the sleeve during use under pressure. The O.D. of the end caps and adjacent ends of the sleeve are slightly smaller than the I.D. of the roller cover for normal concentricity and guidance of the roller cover onto the sleeve, and the ends of the ribs are tapered to wedge the roller cover on. When the roller frame shaft extends all the way through the roller support, perforations may be placed along the length of the sleeve to provide for drainage of any water or other liquid that may seep into the interior of the sleeve through the end cap bearings during clean up.
Abstract: Novel polycyclic macrocyclic compounds having four tertiary nitrogen bridgehead atoms and six bridging chains, each of which have not more than twelve directly connecting atoms between each pair of bridgehead nitrogens, said bridging chains being hydrocarbon chains and hetero-substituted hydrocarbon chains having at least one hetero connecting atom selected from the group consisting of oxygen, sulfur, and nitrogen, at least two of said chains being hetero substituted. When admixed with a compatible cation-donor compound, the polycyclic macrocyclic compounds form stable cation-containing macrocyclic complexes which, in turn, can be conveniently dissociated by addition of acid or a quaternizing acid. The novel polycyclic macrocyclics are valuable for use in the same way and for the same purposes as chelating agents.The polycyclic macrocyclic compounds are prepared by condensation reactions utilizing high dilution techniques, e.g.
October 4, 1972
Date of Patent:
February 28, 1978
L'Agence Nationale de Valorisation de la Recherech (ANVAR)
Abstract: A poppet type relief valve includes a poppet and associated seat with the poppet being mounted in an actuator which is connected to the poppet by a lost-motion connection. The poppet is spring loaded with respect to the actuator, and the actuator is also spring loaded toward the seat. When pressure is applied between the poppet and the actuator, the actuator is forced back against its spring until the lost motion is taken up. Further increases in pressure cause the actuator to pull the poppet away from its seat permitting flow through the valve in one direction. Pressure applied on the opposite side of the poppet causes the poppet to move away from the seat without necessarily moving the actuator simply by overcoming the force of the spring between the poppet and the actuator. Thus, pressure on one side of the poppet will cause it to open at a predetermined pressure, and pressure on the opposite side will also cause it to open at another predetermined pressure.
Abstract: A spring clamp for holding a paper log (rolled up newspapers) while twisting tie wires around the end portions thereof. The clamp comprises a pair of spring-actuated curved jaws which have a laterally flexible cord across the free ends of the jaws to embrace the log, the cord extending through jaw openings and being connected to the ends of springs projecting laterally from the jaws. The springs are arranged to buckle when the jaws are separated to provide a large range of opening movement of the jaws by a substantially constant jaw opening force and a substantially constant tension on the cord.
Abstract: The actuator piston has a generally cylindrical central projection about the exterior of which a similarly formed rolling diaphragm is closely fitted. The piston rod can turn freely, to avoid any twisting of the piston and diaphragm, and can also be axially withdrawn from its engagement with the piston. Return spring means extends into the diaphragm enclosed part of the piston.
Abstract: An electro-thermal fluid displacement actuator includes a fixed volume boiler chamber and a variable volume actuation chamber formed by a ported partition being received in the main body of the actuator between a positive temperature coefficient heat source for the contained fluid and an elastomeric diaphragm. Upon energization of the heat source, a portion of the contained fluid vaporizes to increase the pressure in the boiler chamber resulting in displacement of some of the remainingfluid through the partition ports and into contact with the diaphragm to drive the same and the piston assembly mounted thereon through the predetermined stroke thereof. The displaced fluid contacting the diaphragm has a lower temperature than the fluid adjacent the heater because of its passage through the ported partition to a position remote from such heater, such reduction in fluid temperature resulting in a lower permeation rate for the fluid through the elastomer and consequently increasing the life of the actuator.
Abstract: A tire curing press which includes a center mechanism projecting from the bottom mold section, such center mechanism including a top movable clamping plate supporting the open upper end of a shaping bladder, and a chuck in the top mold section interfitting between the bead ring on the top mold section and the top plate on the center mechanism, when the press is closed, the chuck including toe portion adapted to fit under the bead of the cured tire, a conical skirt portion centering the I.D. of the tire bead shortly after the press begins to open, and a heel portion adapted to bear against the bladder as the chuck opens. The cured tire is then under the control of the chuck and is maintained centered as the tire is stripped from the mold sections and the bladder from the tire. The bladder may be stripped from the tire by vertically elongating the bladder with the chuck remaining in contact with the top plate.
Abstract: A heat reclaim system for reclaiming waste heat from a material processing line by bleeding a portion of the heated air from one or more points on the material heat processing line and directing such heated air through an economizer containing a bank of serpentine coils. Water is pumped through the economizer coils to extract heat from the air, and the heated water leaving the economizer is piped to another heat exchanger where the reclaimed heat is extracted from the water for use in other processes. More than one economizer may be provided in each heat reclaim system for receiving bleed-off air from different points on the material heat processing line, with the economizers connected in series to obtain the highest temperature difference between the air and water.
Abstract: A gas valve has a thermally responsive actuator and an electric heater for heating the actuator normally to produce a displacement output that moves a constrained spring to an over-center position in order to snap open the valve poppet.Portions of the actuator and the poppet holder are aligned such that the actuator portion will interferingly engage the poppet holder portion to move the poppet to its closed position when the heater receives an excessive electric power input causing an excessive mechanical displacement output of the actuator.
Abstract: A hand-held pencil sharpener is disclosed which utilizes a common double-edged safety razor blade that may be easily removed and replaced when worn. The pencil sharpener has spaced, generally parallel tapered bores of varying sizes selectively to guide pencils of different diameters against the shaving edges of the razor blade as the pencil is rotated, said razor blade being positioned between said parallel bores tangentially to place the opposed sharpened edges thereof into the bores to form the shaving edges of the sharpener.
August 12, 1976
Date of Patent:
January 3, 1978
Rajendra K. Narang, Manish Narang, Ashish Narang
Abstract: A hydraulic actuator for a gate or like valve such as the main steam isolation valve in an electric power plant characterized in that the actuator is a compact self-contained unit secured to the valve housing and comprises a hydraulic cylinder having its piston rod connected to the movable valve member to open or close the valve, an air-driven hydraulic pump for pressurizing dual hydraulic circuits (active and standby) each of which includes an accumulator, an air-piloted accumulator control valve, an air-piloted directional control valve for the hydraulic cylinder, and solenoid-operated pilot valves for said control valves in a pneumatic circuit including an air pressure reservoir. The hydraulic actuator is further characterized in that fast closing or opening of the valve is achieved by combined accumulator and pump discharge through the directional control valve and slow opening of the valve is achieved by pump discharge alone.
Abstract: Cushioning means for cushioning the end portion of the stroke of a piston in a cylinder comprising a stepped cushioning member or spear which enters a cylinder head bore to form therewith an annular orifice which successively decreases in area and gradually increases in radial width from one step to the next thus to decrease piston velocity at substantially uniform rate and, hence, at substantially constant deceleration with substantially constant pressure drop across the annular orifice.
Abstract: A flexible reinforced hose comprising nylon tubing to which a reinforcement (braid or spiral wrapping) of a synthetic or natural fiber is bonded, said tubing having an outer surface plasticized with meta-cresol to which said reinforcement is applied. Prior to application of the reinforcement excess meta-cresol is wiped off from the tubing whereby minimal residual meta-cresol remains in the completed hose. In the case of reinforcing fiber other than nylon, the bond between the reinforcing layer and the nylon tubing is essentially a mechanical bond whereas in the case of nylon reinforcing fiber, the inner surface of the reinforcement is fusion bonded to the outer surface of the tubing.In the method of making the hose herein, nylon tubing passes through a heated meta-cresol bath with excess meta-cresol being wiped off the tubing prior to application for a reinforcement of synthetic or natural fiber on the plasticized outer surface of the tubing containing minimal residual meta-cresol.
October 4, 1976
Date of Patent:
December 27, 1977
Wayne Scott Busdiecker, Harold Henry Seymour
Abstract: A domestic gas-fired oven having a top burner in the cooking cavity and a bottom burner fully concealed beneath the bottom of the cavity. The heated products of the bottom burner are caused to flow in a wrapper over the bottom and partially over the side walls to openings in the latter where these products enter the cavity. Air under pressure is supplied to the burners by a fan and another fan withdraws flue products from the top of the cavity, with the incoming air and the exhaust flowing through different sections of a rotating regenerator wheel for heat transfer therebetween. The burners can be operated separately for broiling and baking and together for high temperature self-cleaning of the oven.