Abstract: A lifter unit is provided for use with a transfer die of the type used to form sheet metal components. The lifter unit functions to appropriately position a stamping between the upper and lower die assemblies and is easily accessible from the top of the lower die assembly. The lifter unit is fabricated from standard components and is readily adaptable to a wide range of transfer die designs. As such, the lifter unit of the present invention is a standardized item that can be quickly utilized by a die designer to provide a part positioning feature in a transfer die running in a transfer press.

Abstract: A suspension system of a washing member is comprised of two rods each connected with an upper main suspensor and a lower main suspensor and a secondary suspensor disposed at adjacent ends between the individual rods. The secondary suspensor is comprised of a creased hollow cylindrical rubber casing and a sponge encompassing the rubber member. The suspension system reduces vibration of a water basket to a body.

Abstract: A spring interposed between a golf bag and a carrying strap for the golf bag. The spring will flex when the golf bag is carrying the golf bag thereby reducing the amount of stress placed on the shoulder of the golfer.

Abstract: A tensioning device is connected to a flexible drive member by a right-hand threaded member on the drive member, which projects through an opening in the wall of a trolley. The threaded member is threaded onto a tensioning nut which is biased by a spring which mounts the nut in the base of the tensioning device. A retainer nut having left-hand threads is in frictional engagement with an enlarged portion of the tensioning nut, such that turning of the retention nut tightens the tensioning device onto the threaded member until the frictional force of the engagement between the enlarged portion of the tensioning nut and retainer nut is reduced to a predetermined amount.

Abstract: A self-centering spring hanger assembly has a housing with a top wall, a bottom wall and a central vertical wall therebetween. A coil spring adapted to receive a hanger rod is mounted on the bottom wall. A spring cap is located on the top of the spring. The spring cap has a plurality of concentric depressions adapted to receive a fastener.

Abstract: A shock mitigating tether system includes a helical coil spring mounted within a tubular housing between opposing retention plates. A first cable is folded in half and journaled through the longitudinal axis of the spring such that a loop end projects from a first end of the spring and a pair of opposing ends of the cable are mounted to the tension plate on the second end of the spring. A second cable is also journaled longitudinally through the spring with a second cable loop projecting outwardly through an opening in the second plate and the second cable free ends mounted to the first plate, such that the cable loops project in opposing directions along the longitudinal axis of the coil spring. A pair of pins are mounted through diametric apertures in the ends of the housing outwardly of the plates, to retain the spring and plates within the housing.

Abstract: A shock absorber is incorporated into a tether line to provide a take up device for adjusting the effect of certain instantaneous stress forces in the tether line. This shock absorber is formed as part of an assembly and is positioned in transverse orientation to the longitudinal axis of the tether, to control a designated payout of the tether itself. The tether remains as one continuous lineal structure. The shock absorber, while operating on lineal stress forces in the tether, does not become a necessary support link of the tether. The tether may be of flexible line and the shock absorber structure is comparatively compact, thereby allowing the flexible tether line to be coiled and easily stored without the removal of the shock absorber mechanism. Upon reuse, care is not needed for orientation of the shock absorber, as stress is applied to the tether line.

Abstract: A snubber for tension members such as drive chains and drive belts includes a spindle having an upstanding wall at one end and a recess at the opposite end. A compressed spring is carried on the spindle and is retained thereon in its compressed state by a split ring received in the recess. The snubber can be used with tension members associated with garage door openers, for example.

Abstract: A two piece load lashing compression device with tensioner for use on belts, bands and ropes on a freight carrier. Between the two metal pieces is located a compression spring which foreshortens under the load from the two pieces.

Abstract: A compression spring assembly which includes a compression spring and a pair of identical but oppositely disposed guide members. The guide members have cooperating transversely extending keyways which are aligned to receive a key to maintain the assembly in a retracted, inoperative, condition. When placed in its operative environment, the spring assembly is suitably oriented and the key is removed from the keyway, thereby permitting the spring to expand to the greatest length possible under the circumstances. The spring assembly is capable of a broad range of movement along the axis of the spring. Subsequently, the spring assembly can be removed and returned to its retracted, inoperative condition by reversing the procedure just described.

Abstract: A pool deck protector comprising an enlarged body portion tapering into narrow elongated strips at either end, where the body portion is adpated to underlie the body of a spring member forming part of a pool cover tensioning arrangement. The aforesaid strips of the deck protector are inserted into opposite ends of the spring member, serving to retain the elongated body portion in a position between the spring member and the upper surface of the pool deck.

Abstract: A trigger type sprayer which comprises a sprayer body whose inner lateral walls are provided with a pair of mutually facing engagement grooves, and wherein a trigger of the sprayer has a notch cut out in the upper end portion of the front wall and a pair of lugs formed on the outside of the upper end portions of the lateral walls. A nozzle fixed to the sprayer body extends outward through the notched portion of the trigger, and has a pair of axially extending stoppers integrally formed on the outer surface of the nozzle. The trigger can be rotatably connected to the sprayer body with ease due to the paired lugs being snap-fitted to the engagement grooves of the sprayer body and the upper end portions of the lateral walls of the trigger are prevented from being thrown inward by the stoppers of the nozzle and inconsequence coming off the sprayer body.

Abstract: A sub assembly for connecting a power swivel to a drill string. The assembly includes a telescopic sub having a preloaded spring. The telescopic sub has three discrete positions enabling it to travel in either direction from a normal position. This capability prevents thread damage for both when connecting and disconnecting a drill pipe to the drill string.

Abstract: An apparatus for regulating tension by the compression of a yieldingly resisting core includes a compressible core, a collapsible modifier arranged in the core and a force transmitting or compressive member which receives a tension that is to be regulated and in response thereto applied a compressive force to the core. The core and modifier combine to initially generate a force in opposition to the compressive force applied to them, and the opposition force as applied to the compressive member causes the apparatus to develop a force in opposition to the applied tension. The modifier also aids the applied tension as the core is flattened.

Abstract: An overtravel spring assembly including a helical-type spring secured in a cylindrical housing in a prestressed state between retaining washers inserted adjacent the opposite ends of the housing. The spring is coaxially disposed in the assembly between the inner surface of the housing and the outer surface of a sleeve member inserted within the spring, thereby retaining the spring in a symmetrically coiled state, that is, preventing radial distortion or buckling of the spring spring when subjected to operating stress. The entire spring assembly is retained in its assembled state by radially crimping the opposite ends of the housing against the outer radial surfaces of the retaining washers. The overtravel spring assembly is used in an automatic slack adjuster for vehicle brakes for measuring the extent of overtravel of the piston rod due to excessive wear of the brake shoes.

Abstract: A gravity offsetting device for offsetting the gravitational moment of a rocking arm, mounted between a fixed point located above a pivotal point of the rocking arm at a predetermined distance a and substantially in vertical alignment therewith, and an arbitrary point on the rocking arm, the gravity balancing device including: a compression spring having a spring constant k of a value corresponding to the load W at the arbitrary point as divided by the distance a, and a free length corresponding to the sum of the length l between the fixed and arbitrary points and the initial set length l.sub.s of the compression spring, and adapted to apply a counterbalancing tensile force varying in proportion to the distance between the fixed and arbitrary points.

Abstract: A stretchable tube-like sleeve surrounds and frictionally grips an inner rod or tube. A coil spring surrounds the sleeve in position to resist movement of one end of the sleeve against the spring force. Moving the rod axially relative to the spring in a direction against the spring force on the sleeve decreases the inner diameter of the sleeve to produce a drag on the inner member. Movement of the opposite end of the sleeve is limited by a stop. This causes the sleeve to expand and allows the rod to slip with a constant drag which is determined by the strength of the spring. With the spring force in position to be applied to only one end of the sleeve, movement of the inner member in the opposite direction provides only a minimal drag as determined by the initial frictional interference between the sleeve and the inner member. Positioning the spring to resist movement of either end of the sleeve, provides a constant drag on the inner member with either direction of movement of the rod relative to the sleeve.

Abstract: A mechanism to set in motion the rectilinear transfer of a moving body sliding in relation to a support is disclosed. A servomotor drives a shaft in rotation. The rotation is transformed by pulleys and belts. Two belts are staggered along the shaft axis and are wound on two pulleys of the same diameter. A first end of each of these belts is attached to the corresponding pulley, while the second end of each of these belts is attached to the moving body, the winding directions being opposite so that each rotation in one direction or the other of the shaft causes the winding of one of the belts and the unwinding of the other. Application is to Cartesian displacement robot arms and devices of rectilinear transfer with cross-motions back and forth and up and down.

Abstract: A device for use in a sailing vehicle for automatically adjusting the angular position of a boom supporting a sail in response to varying wind pressures is disclosed. A pulley and an adjustment block are mounted for slidable movement inside an elongated tubular housing which is attached to the boom by a pair of brackets. A compression spring is also disposed inside the tubular housing between the pulley and the adjustment block for urging the pulley away from the adjustment block. An end block is fixedly mounted on the end of the housing nearest the adjustment block. An attachment line having a stop at one end extends into the housing through the end block around the pulley and back out through the end block. Structure is provided for selectively fixing the position of the adjustment block in the housing so as to set a predetermined initial pressure on the spring. In using the device, the other end of the line is secured to the body of the sailing vehicle and the adjustment block set to the desired position.

Abstract: The disclosure describes an air circuit breaker including a compression coil; a second spring holder to compress the compression coil in the axial direction thereof; and a first spring holder which is subjected to the compression force of the compression coil, the second spring holder being constructed in such a manner that it is formed of a plate material in a rectangular shape, a pair of projected pieces are provided on both sides of the plate material, and a pin is held to pass between the pair of projected pieces in the direction of thickness of the plate so as to be able to support one end of the energy accumulating spring at four points with the pair of projected pieces and the pin in a compressible manner. After compression of the energy accumulating spring by pressure application thereto, its pressure application is released to stretch the energy accumulating spring so as to close a pair of contact points through the first and second spring holders.

Abstract: The invention provides a wire tensioning member for providing spring tension in a fence wire. There is provided a spring steel member of a resiliently deformable compound curvature, with the wire being attachable to one end, and the other end being provided with an engaging portion or shaft engageable in a recess provided on a fence post or other fixed ground anchor. The particular application is to provide resilience in light gauge (i.e. between 12-22 gauge) high tensile wire used in electric fencing systems. The resilience of the wire tensioning member also enables it to be used as a conventional gate handle, and furthermore enables the fence to be tensioned to provide overhead or pinned gates in any desired part of the fence for animals or vehicles to pass therethrough.

Abstract: A spring-biased lost-motion link assembly comprising a pair of identical interlocking link members with a compression-coil spring operatively arranged therebetween. Each link member has a pair of longitudinally extending grooves for receiving a terminal prong portion on the other link member in their normal undeflected state with the spring assembled thereon to thereby define a tongue and groove interlock between the link members.

Abstract: A snubber assembly for vehicles comprised of a housing attached to each of the main frame members of the vehicle chassis. A compression spring and compression rod is located with in the housing, with the rod having a free end which extends into fixed relationship respective to the vehicle axle. Movement between the chassis and the axle loads and unloads the compression spring, thereby enhancing the ride and stability of the vehicle. The snubber preferably is attached to the rear axle, and for maximum safety and additional comfort, another snubber is located at each of the fore and aft spring positions.

Abstract: Apparatus for binding a load of articles including an elongate cable extending about the load, and a spring-loaded device operatively interconnecting opposite ends of the cable. A cable take-up drum is provided to adjust the effective length of the cable extending about the load and to deflect the spring to provide selected tightening of the cable about the load. Should the load change configuration the spring maintains the cable taut about the load.

Abstract: A telescopic shock absorber for incorporation in a drill string connected to a rotary bit for drilling a bore hole in earth formations, the shock absorber including a single spring assembly which is compressed downwardly when sufficient downwardly directed drilling weight is transmitted from the drill string through the shock absorber to the drill bit, and which is compressed upwardly when the internal drilling fluid pressure in the shock absorber fully overcomes the downwardly directed drilling weight, assuring that the spring assembly is in its compressed condition when the shock absorber is telescoped or extended, enabling it to absorb shocks and vibrations incident to the drilling operation and under both conditions.

Abstract: A spring recoil assembly (20) for use in a crawler type track roller frame (12) includes an elongated tubular housing (28) (46) having opposite open ends, a stop (36) at least partially closing one of the ends, a compression coil spring (30) within the housing and abutting the stop, a radially inwardly directed lip (48) on the other end of the housing having an inner diameter greater than the outer diameter of the spring, and an additional stop (52) within the housing other end and with, the first stop, sandwiches the spring within the housing. The additional stop has a periphery sized to freely pass into the housing past the lips. A retainer (60,62) is positioned within the housing between the additional stop (52) and the lip (48).

Abstract: Hole forming devices have to be engaged between forms prior to pouring concrete. They are adapted to expand when in position to engage the inner faces of the forms thus holding them in position. The jack is a telescopic rod or tube having a heavy expansion spring surrounding same and normally urging the two portions of the hole forming device outwardly, but being held in the compressed or "set" position by means of a pin engaging through the two portions of the telescopic rod or tube. In one embodiment, when the pin is pulled, the sharpened ends of the rod or tube move away from one another, pierce the end caps of the forming device and engage the faces of the forms and at the same time move the end portions of the forming device outwardly into contact with the inner faces of the forms. In another embodiment, the ends of the rod or tube move outwardly and engage end pieces which in turn move outwardly and urge cylindrical saw-tooth end caps into contact with the inner faces of the walls of the form.

Abstract: A vibration-isolating apparatus for a centrifuge comprising a rotor mounted by means of at least one coil spring in a casing, wherein to dampen vibrations, a flexible belt is wound longitudinally on the coil spring around both ends thereof in a plurality of turns. The belt can be clamped to the ends of the coil spring.

Abstract: A shock absorber utilizing two separating members hingedly attached at their first ends and an arm connected to one of the members to dampen impact shock normally transmitted to a body connected to the other member.

Abstract: A rail-brake magnet is suspended from structure on a railway vehicle at a predetermined distance above a rail when in its non-operating state by a spring. Abutment means are provided to limit the movement of the spring in the direction of raising the rail-brake magnet so that the spring is subjected to an initial stress when the rail-brake magnet is raised to its non-operating position. This initial stress on the spring may be adjusted.

Abstract: The closure counterbalance is for attachment as a strut between a movable closure which is hingedly fastened to a support structure. The counterbalance includes a pair of tubular members telescopingly connected together in sliding relationship. A compression coil spring within the members urges the members apart. A wooden rod is provided within the tubular members. The wooden rod fixed extends into the spring in sliding relationship therewith to support and guide the spring and prevent the spring from buckling against the inner surface of the tubular members.