Abstract: A multiple blow percussion drill assembly is specially configured to provide significantly increased maintainability and adjustability in the field, thereby greatly extending its service life and usefulness over a wide variety of drilling conditions. Both spring replacement and impact hammer delay time variations are rapidly accomplished by virtue of unique positioning and interactions of the internal components, without the need for dissassembly of the sealed high impact energy portion of the drill assembly. Advantageously, a first chamber housing the high impact energy transferring components is isolated from a second chamber housing the control components, such that the control components may be rapidly cleaned, adjusted, or replaced via a simple access port.

Abstract: In semiconductor vacuum processing, it is desirable to minimize the material handling mechanisms that must be located in the evacuated process chamber. To accomplish this, a mechanism has been designed that locates the necessary power elements such as motors (12-16) outside the chamber (32). Power is transmitted to the mechanism via commercially available rotary vacuum feed-through devices (30) mounted in the chamber walls (28) and the separable, zero backlash couplings (44) located within the chamber. These couplings (44) allow easy removal and replacement of the handling mechanism without the need for physical access and tools.

Abstract: A method of manufacturing a fluid-filled elastic mount including an elastic body connecting an inner and an outer sleeve, and having a pressure-receiving and an equilibrium chamber which are filled with a non-compressible fluid and communicate with each other through an orifice. The method includes preparing an inner unit having an intermediate sleeve connected to the inner sleeve by the elastic body, and a pocket formed in the elastic body such that the pocket is open through the intermediate sleeve and has an axial dimension defined by axially opposite side walls of the elastic body. The method further includes placing the inner unit within a mass of the fluid, and press-fitting the outer sleeve on the inner unit so as to provide the pressure-receiving chamber filled with the fluid, while applying an axial force to at least one of the side walls in the axial direction of the mount, to thereby cause elastic deformation of the side wall or walls so as to expand into the pocket.

Abstract: A flexural pivot is configured as a multi-piece device which is specifically configured to tolerate vibration and shock loading. The flex pivot described uses pre-formed unitary (one-piece) support structures which have integral undercut areas, diametrically opposed slots for flexural member placement and key ways and the like, and near net shape geometry. The flexural members are pre-brazed to facilitate the assembly process. The design of the pre-formed support structures eliminates brazed joints which are common locations of fracture due to vibration and shock loading, resulting in a significantly strengthened pivot. The overall configuration and method described provides an economical flex pivot, whereby the flex pivots are accessible for applications which have not heretofore been feasible.

Abstract: Two components are interconnected with a helical extension spring. After attaching a helical extension spring to a first component, the spring is stretched to a predetermined length and the first component with the torsion spring maintained stretched at the predetermined length is held as an integral unit in a predetermined relative position to a second component. Thereafter, the first component with the stretched spring is fitted to the second component in a predetermined positional relationship.

Abstract: A load cell exerts a force on a loose spring cage of a rebound spring to displace the cage and hold it in position on the piston of a hydraulic damper unit until it is welded in position. This preloads the rebound spring to close tolerance so that rebound valve operation is constant regardless of variation in spring sizes, rates and stack up heights of valve components.

Abstract: A gimbal module for installation in a gimbal assembly and for operation by a simple type of robot device for use in a space environment. The module has a stator, which is fixedly connected to a first gimbal, and has a coaxial rotor, which is fixedly connected to a second gimbal. The stator and first gimbal have respectively a stator spline and a gimbal spline for aligning and installing the stator in the first gimbal. The stator has a bearing which rotatably supports the rotor. The first gimbal has a bearing which rotatably supports the second gimbal. The stator and first gimbal have respective connector components. A first force is applied along the gimbal axis on the module for aligning and installing the stator and its connecotr component into the first gimbal and its connector component. The rotor and the second gimbal have respective rotor connector components.

Abstract: A preferred embodiment apparatus of the present invention provides an inertial vehicle seat latch. The latch allows free pivotal movement of the seat back forwardly under low angular accelerations and restrains pivotal movement of the seat back forwardly under high angular accelerations. The latch includes a slip block pivotally mounted with respect to the vehicle along a third pivotal axis. The slip block is angularly biased against a stop generally fixed with respect to the pivotal axis of the seat back with the seat cushion. A pendulum pivotally connected on a pivot pin away from the pivotal axis of the seat back with the seat cushion. When the seat back is pivotally moved forward under low accelerations the pendulum contacts the slip block to pivot the slip block away from the second stop to allow the seat back to pivot forward.

Abstract: Hoist assist mechanism which assists in the manual movement of a coil insertion tool assembly to and from an operational position. The hoist assist mechanism has a rotatable base, to which is attached an upwardly extending post. At the upper portion of the post is a sheave, Also, attached to the base, adjacent the post, is a support arm which supports a coil insertion tool assembly. The support arm is pivotally attached to the rotatable base. A cable is attached to the arm. The cable extends over the sheave and is also attached to a spring which assists in pivotal movement of the arm. The spring is adjacent the post or enclosed by the post. Preferably, plurality of posts and arms are pivotally attached to the base. Each pivotal arm supports a coil insertion tool assembly. Thus, coil insertion tool assemblies for different stator cores can be easily and readily moved into and out of operational position as desired.

Abstract: A method for manufacturing a hydropneumatic accumulator including a metal sheet casing and an elastomer membrane which separates the inside of the casing into a first chamber containing a pressurized gas and a second chamber containing a liquid, this membrane being fixed to the casing by a cup, in which method a sheet metal disk is cold deformed in two operations, namely a first operation for obtaining a cylindrical or conical blank, one end of which has a convex bottom and provided with an orifice for filling the first chamber with gas, and a second operation in which, after the membrane has been fixed in the casing by means of the cup, the cylindrical part of the blank is hammered so as to give it a spherical shape with an axial orifice in which a connection is crimped and welded for feeding liquid into the second chamber, wherein said cup is fixed to the bottom of the casing by irremovable means and the first deformation operation is carried out so that the blank has a form such that the membrane may be en

Abstract: A tape cassette with a separate, plastic, molded, elongated, tape guide subassembly is described. The tape guide subassembly incorporates two bearing extensions integrally molded at the left and right ends thereof. Each bearing extension is a pair of opposing, parallel, planar members extending from support members, each of which is parallel to the planar top and bottom of the tape guide subassembly. Each planar member includes a roller receiving means integrally formed therein and the rotational axles for the tape rollers are either integrally molded as part of the bearing extension or the tape roller itself. The planar members in each pair have the ability to flex only in the direction perpendicular to their planes, allowing the rollers to be easily snapped into place during assembly. Once the rollers are inserted into the tape guide subassembly, the latter is assembled into the front of the tape cassette, wherein the rollers form part of the central tape support area of the tape cassette.

Abstract: A hasp-type latch includes a hasp member with a base having a base wall and a pair of upstanding side walls and a latch arm which is pivotally mounted thereon. The side walls of the pad include releasable latching elements which are engageable with the arm in its open position to hold it in that position. The staple member has a base with a top wall and a depending sidewall defining a cavity thereunder, and the top wall has an opening therethrough. A post member has a pedestal portion which extends through the opening into the cavity of the staple base, and a post portion which extends upwardly through the aperture in the arm in its closed position. The pedestal portion includes securing means in the cavity which extends outwardly beyond the opening in the top wall to prevent the post member from being pulled through that opening. Generally the post member is rotatable to locate an elongate axis so that it overlies a portion of the hinge leaf in the closed position and prevents its being pivoted upwardly.

Abstract: A method of making a control assembly intended for use in manually regulating the operating speed of power equipment in which fine adjustments may be obtained by rotating the control knob and rapid changes in speed may be achieved by shifting the knob axially. The assembly includes an outer one-piece sleeve adapted to be mounted upon an instrument panel or engine housing and permanently joined to a flexible casing containing the operating wire or cable. A plunger assembly is rotatably and slidably received within the sleeve, the plunger assembly including a thin-walled plunger tube of flexible material having a control knob ultrasonically welded to one end of the plunger. The side wall of the plunger tube has a non-circular (preferably oval-shaped) opening through which a retractable follower (ball) protrudes for engaging the internal threads of the sleeve when vernier adjustment is desired.

Abstract: A tool and a method for loading pins into pin holes in the bore of the cylinder of a tumbler lock is disclosed. The tool is an elongated rod with two rod sections, a loading section and a handle section having a greater circumference than the rod section to form a shoulder. A contiguous groove runs lengthwise through both rod sections and includes perpendicular pin holes in the loading section. A tapered blade is provided to slide in the groove. In use, the pins are loaded into predetermined pin holes in the loading section. The loading section is inserted into the cylinder bore until the shoulder of the handle section prevents further forward motion and aligns the rod pin holes with matching pin holes in the cylinder. The blade is pushed towards the cylinder and urges the pins from the rod holes into the cylinder pin holes. With the blade holding the pins in the cylinder pin holes, the rod is turned so that the pins are now held in place by the rod itself.

Abstract: A tripod universal joint includes a shaft with a forked end or tulip which is held in assembled relationship with a tripod spider by a spring clip having angularly spaced legs adapted to snap releasably into grooves in the tulip. The spider is located in a cup-shaped housing. To facilitate assembly of the tulip with the spider, a resiliently flexible washer is placed on the bottom of the housing and holds the spring clip upwardly in a position permitting the legs of the clip to interlock with the tulip when the tulip is moved axially toward the clip. After assembly of the tulip with the clip has been completed, the spacer washer is removed from the housing by pulling on a flexible retrieval wire which is attached to the washer.

Abstract: A process of producing a resilient coupling in a clearance space between two, relatively-movable elements with a polymeric material introduces the polymeric material contactingly into a clearance space between the elements. A portion of the polymeric material is softened at least while in contact with the clearance-space surface for adhesion when solidified thereafter into a resilient body for the coupling, but a portion of the clearance-space surface is arranged to prevent adhesion. The combination provides coupling with guidance of the relative motion.

Abstract: An airspring with plastic rigid components having a specialized coupling adapted for push-in engagement of the pneumatic tubing into the airspring is disclosed. The coupling requires no threading in the plastic structural component of the airspring and is composed of an outer ring through which a coaxial annular sleeve with jaws for tubing engagement slides axially. An O-ring seals the tubing against air leaks. The airspring may be used for vibration isolation or load suspension.

Abstract: A fluid-filled bushing comprises at least two sleeves disposed in concentric relation to each other, a resilient member interposed between the two sleeves and having a substantially annular recess defined in an outer circumferential surface thereof, a partition disposed in the annular recess and having holes defined therein and defining first and second substantially annular fluid chambers in the annular recess which selectively communicate with each other through the holes of the partition, a fluid filled in each of the first and second fluid chambers, and a valve for variably restricting the flow of the fluid between the first and second fluid chambers.

Abstract: A pressure plate for a self-energizing disc brake of the spreading type is provided with angularly spaced integrally cast ears which project inwardly from the inner peripheral edge of the plate, and a recess or dimple is also cast integrally in each ear in the face of the ear adjacent to the braking face. A region of each ear outwardly of the recess or dimple defines an abutment face forming an anchorage for one end of an anchorage portion of a tension return spring with the recess or dimple accommodating the free end of the anchorage portion. In a modification each abutment face may be machined in the respective ear by turning down the ear over an arcuate area passing through the center of the recess or dimple and using the braking face as a datum.

Abstract: A vibration damping material having an improved mechanical strength and excellent vibration damping characteristic is disclosed.The material is made by usage of composition of 40 to 90 weight percent of iron oxide particles 0.1 to 100 .mu.m in size and 60 to 10 weight percent of resin.

Abstract: A machine is shown which assembles a barrel, spring, piece of lead, lead plunger, barrel tip and eraser into an automatic pencil. The steps of assembly include: Pressing the lead plunger onto the lead. Placing the plunger and lead into the spring and tapping the plunger to turn its extending tabs into the coils of the spring. Placing the plunger, lead and spring into the barrel. Extending the spring from the barrel and pressing the barrel tip onto the spring and then pressing the tip into the barrel. Pressing the eraser into the barrel.

Abstract: A liquid shock absorber device including a plastic cylinder having first and second ends, a piston rod having a first end within the cylinder and a second end externally of the cylinder, a plastic seal formed integrally with the cylinder at the first end and defining an opening for receiving the piston rod in sealing relationship, a closure for closing the second end of the cylinder, and fluid in the cylinder. The closure on the second end may have a piston associated therewith for preloading the fluid.

Abstract: A utility cylindrical lock set having a series of pin tumbler bores accommodating a plurality of pin stacks and biasing springs is provided with an improved cap. The external surface of a cylindrical lock body includes a cap-receiving groove crossing the open upper ends of the pin tumbler bores. The sides of the groove are undercut to form overlying flanges. An elongated cap having a central portion to overlie the pin tumbler bores and edge portions offset downward from the central portion is receivable within the groove. The edge portions of the cap project oppositely outward to engage the side flanges of the groove to retain the cap in place in the groove. A small recess is formed in one side of the groove. The elongated cap includes a complementary side protrusion to engage the recess to locate the cap against longitudinal movement in the groove.

Abstract: A method of preloading the upper ball bearing of a spin casting machine. Spring force is used to lift the inner bearing race and preload the bearing upward. Spring force is applied against a bearing collar which rests against the lower surface of the inner bearing race. The rotor shaft has a sliding fit within the inner race and the bearing collar. The rotor shaft is frictionally coupled to the inner bearing race by the force of the preloading spring through the bearing collar.

Abstract: A process for manufacturing ball joints or other self-lubricated joints, comprising placing the inner ring of the ball joint in a heat-retractable sheath of determined thickness and shrinking the sheath on this inner ring. The inner ring is then disposed in an outer ring blank which is then deformed so that the sheath is clamped between the outer and the inner ring. After machining of the blank, the assembly is treated so as to eliminate the heat-retractable sheath and thus form between the two rings a free space whose thickness corresponds to that of the sheath. A self-lubricating resin is then injected in this space.

Abstract: The method comprises the steps of making a hinge by using conventional materials and treatments and applying, on the edge of the hinge provided for contacting and biassing a ball member, one or more cup members, made of a hard metal material and effective to provide a cam profile configuration.

Abstract: A railway coupler yoke assembly is provided. A yoke, draft gear and follower are assembled as a unit assembly and maintained as such by the installation of bands at various locations about the assembly. Such yoke assembly can then be shipped and stored as an assembly until the time of installation in a railway car. At such time, the bands are cut and the assembly is placed in the railway car.

Abstract: In torsional vibration dampers and torsionally elastic coupling which comse torque-transmitting spring elements, which are clamped between spacers by an external clamping ring, which is elastically expanded for the installation of the spacers and spring elements. For a quick and efficient assembling of the dampers or couplings, the spacers alone are initially inserted into the clamping ring and are then subjected to radially outwardly directed pressure until the clamping ring has been expanded beyond the extent required to clamp the spring elements, which are subsequently inserted between the spacers, whereafter the spacers are relieved from pressure. This method can be carried out with the aid of a cylindrical assembling head, which is provided at its periphery with at least one radially movable pressure-applying member, which cooperates with at least one hydraulic cushion, which is adapted to be pressurized.

Abstract: A method of assembly of a shock absorber is disclosed. A cell, formed of plys of polymeric material impervious to hydraulic fluid and a high molecular gas, while pervious to air and water vapor, is wrapped about the inner tubular container, secured thereto by clips at a midsection of the cell, and effectively inserted into the outer tubular container even though the cell contains a predetermined quantity of gas. The containers can preferably be filled with hydraulic fluid prior to insertion.

Abstract: A multiple drill stem for cable tool drilling operations, in which the drill stem is repeatedly hoisted and dropped to impact, has an internal hammer that moves a short distance to strike an anvil in a lower end of a drill stem casing. The improvement relates to a cocking spring that is positioned along an uppermost portion of the hammer and away from harmful debris that collects where the hammer strikes the casing anvil. The casing bears against an upper hammer anvil to cock the spring between a spring-compressing flange at one end and a restriction in the casing interior that blocks an opposite end of the spring, but allows the hammer to slide through it. The spring is further compressed when the drill stem is dropped to a point of initial impact, so that the hammer strikes a follow-up blow on the lower casing anvil. A method of assembling the drill stem is also disclosed.

Abstract: A process and a molding unit for the automatic molding, expelling and assembling to one another of at least a pair of plastic handles for a plastic bag, consisting of a male and female handles (A and B) and provided with snap fastening means for closing said bag, characterized by the use of a molding unit comprising:two mold blocks, each having a cavity for removably receiving a mold, respectively said cavities and the molds forming two juxtaposed molding chambers, separated from one another by slidable wall members constituting in combination the countermolds of the two respective molding chambers in operative position thereof,means for moving the mold blocks together with the molds to and from one another,means for slidably moving said slidable wall to and from its closing position,injection means for feeding molded plastic material into both molding chambers shaped to form a female and a male handles (A and B),punch means to form in each male handle (A) each pin of the snap fastening means as well as the r

Abstract: A disc-type valve assembly and method of making same. The assembly includes a valve body having a flowway with a disc-like valve element therein. A shaft has an inner portion directly rigidly connected to the valve element by a pre-stressed self-connection and an outer portion rotatably mounted in the valve body. A handle is directly rigidly connected to the outer portion of the shaft by a pre-stressed self-connection whereby the handle and shaft form a rotating body. A positioning sleeve is interposed in tight pre-stressed relation between the valve body and the rotating body for preventing relative rotation between the bodies under torque loads below a pre-determined magnitude, the positioning sleeve being yieldable under torque loads greater than or equal to that magnitude to permit such rotation.

Abstract: The device and related process for the manufacture of vibration-damping and shockproof mountings formed of metal cable spirals comprise a generator of low speed rotational motion; a spindle formed of at least two portions, parallel longitudinally developing and adjustably matchable to each other, having outer surfaces corresponding to those of the cable spirals to be formed, and at least two planar zones along two diametrically opposite generatrices, each of such zones for the bearing thereon of one of the terminal forming bars connecting with the bar, the pairs of bars having the matching surfaces provided with semicylindrical connecting seats for accommodating and firmly tightening for a short length the cable spirals, but without any distortion to the elementary wires thereof; a braking system for holding the in-coming cable under tension, slidable on two parallel shafts, to supply the spiral winding on the spindle body; a clamp for securing the cable to be wound up at the operation start and a spacer down

Abstract: A method is provided for assembling a combination shock absorber and air spring including a tubular shock absorber having an outer tube and a piston rod reciprocably projecting from one end of the outer tube, and an air spring consisting of a resilient diaphragm member having an outer wall portion connected to a cylindrical housing secured to the projecting end of the piston rod, an inner concentric wall portion secured to the outer tube, and a rolling wall portion formed between the inner and outer wall portions.

Abstract: A torsion bar disk gang mounting assembly includes a shaft pivotally suspended from a disk frame. A rectangular tube receives a portion of the shaft. A pair of disk gang support arms are pivotally coupled to the shaft and extend generally rearwardly therefrom. The arms are fixed to opposite ends of the tube and support a disk gang at their distal ends. A torsion bar is resiliently coupled between the tube and the shaft to bias the disk gang downwardly. A method of making such a disk gang mounting assembly includes the steps of assembling the shaft, tube and torsion bar, then fixing the arms to ends of the tube. The shaft is then pivoted with respect to the tube and arms to establish a predetermined preload in the torsion bar. A stop arm is then fixed to the shaft in engagement with an abutment on one of the arms to maintain the preload in the torsion bar and to limit downward movement of the disk gang.

Abstract: A table support of die-cast and machined generally wedge-shaped configuration is suspended from the machine base by four screws and positioned by four leveling screws adjacent the suspension screws. The table support provides two parallel, spaced apart flat, inclined ramps or ways along which the in-feed table is moved by a height adjustment screw. The in-feed table is also of die-cast and machined generally wedge-shaped configuration and is held to the table support by a pair of extension coil springs having looped ends that are inserted into holes provided in the table and table support castings, respectively, so that the assembly is of generally rectangular block shape of variable height. In assembly, the springs are assembled in a relatively unstressed position and the table and table support moved relative one another by pushing the table up the ramps or ways on the table support to stretch and tension the springs to tighten the table and table support together.

Abstract: A tire building machine utilizes a ply-down and bead set assembly in which an array of axially projecting spring fingers are used. The fingers are secured between two nested rings which are constructed to interfit with each other and with each finger so that each finger may be inserted or removed without affecting adjacent fingers. One of the rings has projections interfitting with the fingers in their normal position and one of the rings may be locally deformable to assist in the insertion and removal of the fingers.

Abstract: A method for manufacturing a spring ring to be electroplated in subsequent processes wherein, on the occasion of assembling a movable core member to open and close a opening of a link body and a spring to push the said movable core member in a direction to close the said opening in a circular and tubular link body opened at one end and brazed with a ring on another, the spring is previously coated with a electrically non-conducting film by means of a coating treatment and then assembled into the said tubular link body.

Abstract: A disc brake boot seal 10 (and method for assembling a disc brake system) that is molded in its extended condition and that when moved into its collapsed condition will remain in its collapsed condition. The boot seal comprises a molded elastomeric sleeve 12 having a plurality of different wall portions 20-34 certain ones of which interact to releasably hold the sleeve in its collapsed condition so that it does not self-extend. The expense and high mold breakage resulting from the prior art system of molding a seal in its collapsed, convoluted condition are eliminated by this invention.

Abstract: For inclusion as spacer between the confronting faces of first and second axially spaced apart members mounted for limited angulation about a common axis, the first member having a seal recess formed in one face, the second member having an end face opposite the seal recess, the improvement of: a laminated torsielastic thrust bushing consolidated in the recess as a one-piece part therein, with its nonmetallic laminae so uniformly thin that the part in the axial direction is a substantially incompressible composite piece.

Abstract: A mattress box spring and method of assembly comprising a plurality of substantially conical coil springs rigidly fastened at the spring ends of lesser diameter to a support frame such that the spring end coils of greater diameter lie in a substantially common plane, a wire mesh coated with elastomeric material overlying the end coils in the common plane with the spring end coils being unattached or free-floating with respect to the mesh and with respect to each other, and a cloth cover or pad disposed over the mesh and having a periphery attached to the frame to hold the assembly together. Preferably, the diameter of each spring end coil lying in the common plane is greater than the corresponding spring height. The coating on the wire mesh, which preferably is of latex material, provides enhanced frictional contact between the mesh and springs, and also deadens rattling between the opposing spring and mesh surfaces.

Abstract: A method of making a tuned torsional viscous damper comprising assembling preformed elastic tuning spring, spacing and sealing rings in engagement about concentricity maintaining shoulder means located at the radially inner sides of grooves substantially wider than the rings within radially inner portions of confronting spaced axially directed faces within a ring shaped inertia mass having a radially inwardly opening annular working chamber, mounting the inertia mass on a supporting disk, including placing within the working chamber and between the rings a radially extending body on the supporting disk, with parallel confronting working surfaces on the body and on said faces in shear film spaced relation having regard to the viscosity of damping medium to be filled into the chamber, bonding the elastic rings to the body and to the inertia mass, and filling viscous damping medium into the chamber.

Abstract: A plug is offered to make relatively easy and simple the assembly and pre-torquing of a spring-loaded hinge for doors and the like. These hinges comprise a pair of hinge leaves, each leaf defining at least one hollow hinge knuckle aligned with a hinge knuckle defined on the opposite leaf. Through the knuckles, a bi-ended torsion spring mechanism is inserted. A first plug is affixed within one hinge knuckle and engages one end of the torsion spring mechanism. At the opposite knuckle and second spring end, the novel second plug is affixed. This second plug includes a spring-engaging finger and a capstan body adapted to fit snugly within the knuckle. Atop the capstan body is a removable head which can be grasped by a wrench or like torsioning device. After this second plug is inserted in the hinge, the spring end is grasped and torqued by rotating the plug.

Abstract: A timepiece push-button assembly, in which a push-button and its stem are biased to a rest position defined by abutment of a shoulder of the stem against the end of its guide tube, is assembled with a snap fit by elastic deformation of a trunco-conical part of the stem forming said shoulder.

Abstract: This energy absorber for use on automotive vehicles has a cylinder slidably mounted in a support bracket to flex a belt of energy absorbing material on bumper impact to dissipate impact energy. The cylinder has integral radial connector straps at its outer end to facilitate bumper attachment. The belt is looped around a pair of pins, one being slidably mounted in a travel slot and the other in an end notch facilitating assembly of the belt into the cylinder. Preferably the energy absorber cylinder and connector straps are made from a one piece stamping rolled into a cylinder and seam welded.

Abstract: A method of limiting backseat loading on a valve stem moved between a lower closed position and an upper open position engaging the backseat by an actuator having an upper stop position wherein the method includes the steps of setting a variable force transmitting coupling to a predetermined loading between a bearing surface and a gauging surface thereon, connecting the coupling to the valve stem in the lower closed position, lowering the actuator from the upper stop position, connecting the coupling to the actuator, raising the actuator to the upper stop with the backseat being below the upper open position, and increasingly connecting the coupling to the valve stem and the actuator until the backseat is engaged and the predetermined loading exceeded as ascertained by separation of the gauging surface from the bearing surface.

Abstract: Solid resilient compound retaining the outer end of a bimetallic helical coil spring of a temperature responsive viscous fluid drive to a clip. The clip is secured to the cover plate of the drive. The inner end of the spring is secured to the valve shaft while the outer end of the spring is configured into a bight having a straight center portion inserted within a slot in the clip. A liquid compound is placed in the bight and surrounds a portion of the clip and fills the bight. The liquid solidifies to resiliently retain the outer end relative to the clip. A method for assembling the spring, valve shaft, cover plate, and clip is also described.

Abstract: Disclosed subject matter includes flexible motor mounting members particularly adapted for vibration induced flexing movement combined with oscillatory movement about a pivot axis at a point of attachment on a blower housing or other support. Short but strong mounting members are provided that have low torsional mode vibration transmissibilities. Leaf spring mounting arms have low torsional spring constants and yet have sufficient strength to withstand shipping and handling loads for motor assemblies and to permit all angle motor mounting. The mounting member spring constants for axial, radial and tilting vibration modes are selected in specific forms so that the characteristic vibration transmissibility ratios for these modes are each close to unity. However, the characteristic torsional mode vibration transmissibility is substantially less than unity. In particularly preferred embodiments of the invention, sheet steel having a martensitic grain structure is utilized to form the mounting members.

Abstract: In manufacturing a hammer for sheet metal work and repair or shaping of metal sheets, the hammer is made with a hammer head and an adapter which has a face for striking the workpiece and is coaxially connected to the hammer head in such a manner that the adapter, upon the striking of the hammer, rotates with respect to the hammer head in a predetermined direction from its "at rest" position, and then automatically returns to its original position. The hammer head and the adapter are, first, provided in the area where they are in contact with other when set in the at rest position with a lubricant, then, they are positioned with respect to each other in a predetermined relationship, and temporally bonded to each other by a temporary bonding agent which is applied over adjoining peripheral portions of the hammer head and the adapter and the liquid then tightly covers the adjoining peripheral portions.

Abstract: Disclosed subject matter includes flexible motor mounting members particularly adapted for vibration induced flexing movement combined with oscillatory movement about a pivot axis at a point of attachment on a blower housing or other support. Short but strong mounting members are provided that have low torsional mode vibration transmissibilities. Leaf spring mounting arms have low torsional spring constants and yet have sufficient strength to withstand shipping and handling loads for motor .Iadd.blower .Iaddend.assemblies and to permit all angle motor mounting. The mounting member spring constants for axial, radial and tilting vibration modes are selected in specific forms so that the characteristic vibration transmissibility ratios for these modes are each close to unity. However, the characteristic torsional mode vibration transmissibility is substantially less than unity.