Abstract: A brake caliper for a disk-type brake is disclosed having a prefabricated, cast-in-place cylinder bore liner. The liner is made of a machinable material, preferably steel, and the caliper body is made of a lightweight material, preferably aluminum. The caliper body is cast around the cylinder liner so that no further machining of the caliper bore is required. A reinforcing arm may be provided extending from the cylinder liner through the bridge portion of the caliper. A method for making the caliper is also disclosed in which the cylinder liner is positioned within a die cavity and molten metal material is cast around the liner to incorporate the liner into the caliper body.

Abstract: Microfinishing devices and processes for in-process gauging of a microfinishing process of generally cylindrical workpieces. A size control shoe is used with a microfinishing shoe such that the diameter of a generally cylindrical workpiece can be continually monitored during the microfinishing process. Once a predetermined diameter or workpiece geometry is achieved, the machining process can be terminated. Several embodiments of size control shoes are disclosed which are particularly adapted for retrofit applications for existing microfinishing equipment. A "masterless" microfinishing machine is also described having arms which engage the size control and microfinishing shoes which follow the path of the workpiece during machining. Since the shoes must be maintained in engagement with the workpiece after a desired diameter is achieved, the pressure applied by the microfinishing arms is relieved until all of the workpiece surfaces are machined.

Abstract: Microfinishing devices and processes for in-process gauging of a microfinishing process of generally cylindrical workpieces. A size control shoe is used with a microfinishing shoe such that the diameter of a generally cylindrical workpiece can be continually monitored during the microfinishing process. Once a predetermined diameter or workpiece geometry is achieved, the machining process can be terminated. Several embodiments of size control shoes are disclosed which are particularly adapted for retrofit applications for existing microfinishing equipment. A "masterless" microfinishing machine is also described having arms which engage the size control and microfinishing shoes which follow the path of the workpiece during machining. Since the shoes must be maintained in engagement with the workpiece after a desired diameter is achieved, the pressure applied by the microfinishing arms is relieved until all of the workpiece surfaces are machined.

Abstract: A microfinishing machine and tooling particularly adapted for lobed cam surfaces such as internal combustion engine camshafts or outer irregular surfaces. The microfinishing tooling includes shoes having a pair of rollers which press abrasive coated film material against the workpiece being machined. The rollers are carried by a plate which is also free to rotate slightly. The roller elements are free to rotate and therefore wear on the tooling is minimized in response to minute motion of the microfinishing film during the microfinishing process. Furthermore, the roller elements closely follow the contours of the workpiece surface to provide a more uniform machining effect. Various configurations for the roller elements are disclosed, including a unitary roller made of a hard material and another embodiment in which the roller is coated with an elastomeric material.

Abstract: A magnetic fastener wherein magnetic flux from a permanent magnet flows to and from a permeable planar armature through air gaps of substantially equal areas which are small compared with the area of either face of the magnet.

Abstract: The invention features, either separately or in combination, a mounting member and an elongated strip of resilient material which strip is secured in and partially surrounds the mounting member, where the resilient strip member has a semi-cylindrical body with a pair of circumferentially facing edge portions. The resilient strip also includes a pair of oppositely disposed, radially-inwardly extending latch members, each extending longitudinally of the latch member and located between one of the edge portions and a point away from the mid-line of the semi-cylindrical body. The mounting member includes a web portion having a pair of oppositely disposed web-latch extendions extending across a chord of the semi-cylindrical body, substantially parallel to a tangent to the circumference of the semi-cylindrical body at its mid-line, and at least one leg member extending from the web portion away from the semi-cylindrical body.

Abstract: A microfinishing apparatus and method is disclosed particularly useful for microfinishing workpiece surfaces such as are found in journal bearings and cylinder bores. This invention improves over conventional machines and methods wherein coated abrasive tape is brought into contact with a relatively rotating workpiece surface and is pressed against that surface by an elastomeric plastic insert. According to this invention, the insert is made from a relatively rigid substance such as honing material stone. Since the insert is made from a rigid material, the insert surface shape is generated in the workpiece surface and therefore geometry corrections in the workpiece surface can be accomplished. In alternate embodiments of this invention, the rigid inserts have relieved portions or noncylindrical surfaces such that a desired surface profile in the workpiece surface is generated. In another embodiment, one or more flexible inserts are added to the rigid insert enabling the fillet radius area to be microfinished.

Abstract: A method of affixing an aluminum rupture disc assembly to a 356 aluminum alloy heat-treated aluminum casting is disclosed wherein the rupture disc is of 1100 aluminum alloy, the disc is welded to a tubular member of 2219 aluminum alloy which in turn is fillet welded to the 356 aluminum alloy casting using a 4145 aluminum alloy rod. The disc is welded to the support member by an electro beam or TIG process while fillet welding of the support member to the 356 aluminum alloy casting is preferably accomplished by a TIG method. The procedure allows a rupture disc assembly to be mounted on a 356 aluminum alloy electronic housing unit which contains components cooled by a gaseous medium without adversely affecting the physical characteristics of the rupture disc, the support member therefor, or the cast housing.

Abstract: A two directional rupture disc assembly is provided which serves in a fluid reactor system as a safety relief valve when a critical condition, such as predetermined pressure positive or negative, is encountered. That is, the rupture disc assembly hereof is operatively coupled to a reactor vessel and allows fluid flow in one direction when one reactor system condition is encountered and allows fluid flow in an opposite direction when another reactor system condition is encountered. Thus, under normal conditions, the reactor system operates in a certain pressure range with the assembly hereof in flow blocking disposition, but if a reactor condition outside of the normal operating range is encountered, the assembly ruptures to permit fluid flow in the appropriate direction. Preferably, the rupture disc assembly includes a pair of flat rupture discs and an imperforate membrane between the two discs.

Abstract: A rupture disc assembly is provided having the seemingly inconsistent properties of resisting relatively high burst pressures in one direction, while rupturing upon experiencing relatively low pressures in the opposed direction. The assembly includes a metallic, frangible disc having a low pressure face and an opposed, scored high pressure face, along with an apertured backing member positioned adjacent the low pressure face; the backing member includes webs aligned with the disc scoring which engage the low pressure face and prevent disc rupture under the influence of high burst pressures directed against the remote high pressure face, while permitting disc rupture when the relatively low burst pressures are developed adjacent the low pressure face. The burst regions of the disc preferably include concavo-convex portions, with the convex faces thereof forming a part of the low pressure face and extending into corresponding openings through the adjacent backing member.

Abstract: A monitoring apparatus for pressure sensitive devices is provided which detects the operating state of the monitored device, and which is designed to provide a reliable output even when operated in hostile, corrosive environments. The monitoring apparatus preferably includes a light source for transmitting a beam of light along a path of travel proximal to the monitored device, a light detector for detecting the light beam, and a member for adjusting the path of travel of the light beam in response to the actuation of the pressure sensitive device. Several alternative embodiments are disclosed.

Abstract: An improved shear-type pressure relief device is provided which is useful in conjunction with pressure chambers requiring relief when system pressures exceed a predetermined level, such as in the shock absorbing piston and cylinder assemblies of present day vehicle bumpers. The relief device is preferably in the form of an integral, metallic body including a flange in engagement with a pressure chamber wall adjacent a relief opening, with a projection extending into the opening. The juncture between the flange and projection is advantageously very sharp (having a radius of less than about 0.020 inches) and the device is designed to shear upon experiencing high system pressures for relief purposes. In the case of vehicle bumpers the shear device is located on the shiftable, bumper-mounted piston thereof, and circumscribes the usual stationary, tapered, frame-mounted, flow-restricting rod.

Abstract: A production system for simultaneously correcting multiple distortions in multiple extensions of an irregular workpiece within tolerance requirements including for each distortion a gauge for determining direction and magnitude automatically employed to monitor corrective deflection beyond yield point under an electronic controller program which automatically initiates, controls, and terminates simultaneous corrective deflection in either or both of two planes at each of multiple workpiece locations. The program is adapted to vary with the relative as well as the individual distortions and to update the straightening program with the straightening experience data of each successive workpiece in order to approach an optimum of simultaneous single stroke corrective deflection of the multiple distortions in multiple planes within total workpiece tolerances.

Abstract: An automatic production workpiece straightener employing pulsing impact hammer peening blows on the concave curvature side of a distorted workpiece to straighten by imparting compressive stress to the surface fibers thereby permanently deflecting the workpiece in a straightening direction. As applied to rotatable shafts such as cast iron camshafts, a plurality of peening heads deliver rapidly pulsing axially spaced impact blows to cylindrical grooves in the shaft during a limited portion of each continuous revolution as required to provide straightening action with continuous or peening-interrupted automatic gauging for controlling and terminating the straightening action.

Abstract: An improved construction is provided for fluid pressure responsive electrical switching apparatus, which achieves physical miniaturization, quick response time, sensitivity to relatively low levels of change or differential in fluid pressures, adaptability for employment in corrosive environments and under a very wide range of temperature conditions, simplicity and economy of fabrication and assembly, reliability of operation and general versatility for utilization in diverse applications. The improved apparatus involves, besides suitable housing structure that may provide for installation accommodating to various pressure and other conditions dictated by the application, a thin, wafer-like laminated switch assembly peripherally sealed in the housing structure and disposed for direct fluid communication with the fluid whose pressure is to be monitored for the purpose of controlling actuation of the switch assembly.

Abstract: A high speed, horizontal discharge hazard suppression device for preventing fire and explosions in confined zones such as dust collectors is provided which includes a tank having a generally arcuate tubular elbow extending from the underside thereof, and a selectively operable rupture disc mounted at the end of the elbow remote from the tank. The tank and elbow contain a desired fluid suppressant, and the device is mounted in an upright relation such that the suppressant bears directly against the rupture disc. The device serves to deliver suppressant in reduced time as compared with prior horizontal discharge units, and completely eliminates the costly and inefficient delivery pipe usually provided downstream of the rupture disc.

Abstract: A universal crankshaft pin and main bearing finishing machine having one pair of pin and main bearing arms with finishing shoes simultaneously engageable with one pair of pin and main bearings. A programmable controller and encoders automatically monitor drives which position and oscillate the arms over the width of the bearings for each pair of pin and main bearings until all required bearings of the crankshaft are finished. Adjustment and automatic programs are provided for different crankshafts which may vary in length, number of cylinders, stroke, axial location and width of bearings.

Abstract: Apparatus for assembling covered buttons in which a first die assembly including a first punch carrying a first sleeve which sequentially receives a piece of covering material and the button shell with its flange extending toward the open end of the sleeve. A second assembly including a second sleeve having a bore one end of which is formed with a first cam surface extending axially inwardly of the above. The second sleeve is spring loaded to an extended position on a supporting post having a centrally located button back fastener receiving cavity in the end thereof with a second cam surface extending inwardly from the outer edge of the end to the bottom of a recess surrounding the cavity. An annular boss at the inner edge of the recess around the cavity is elevated to allow the material and the shell flange to curl inwardly under the button back. In the retracted position of the second sleeve on the post, the second cam surface forms a continuation of the first.

Abstract: Nozzle structure particularly adapted for use with pressurized fire suppressants is disclosed which includes an elongated, tubular, apertured body, and a visible, easily replaceable, fluid flow-directing slug disposed therein for controlling and directing lateral fluid flow from the nozzle. The slug is located in partial or complete blocking relationship to certain of the body sidewall apertures so as to define therewith outlet ports of desired effective dimensions and to control the spray patterns emanating therefrom. Use of a slug of different configuration serves to alter nozzle performance, discharge direction and discharge rate without need for any additional modifications of the nozzle. The annular end wall of the body allows the adjacent end face of the slug to be seen, such that appropriate coding can be applied to the slug end face for easy determination of the design discharge rate of the nozzle.

Abstract: A non-fragmenting, low burst pressure rupture device assembly is provided for mounting between opposed flange members which define a relief orifice for a pressurized line or vessel. The assembly includes a relatively thin, flexible, fluid impervious sealing element adapted to be carried by the flange members in fluid blocking relationship to the orifice, along with a support member adapted to be mounted in supporting relationship to the element downstream of the pressure line or vessel. The support member has a series of relieved areas therein defining a closed loop pattern presenting a section which gives way or opens under a pre-determined pressure thereon applied through the sealing element from the pressurized area. The element has an integral bulge defining part overlying the perimeter of the section which allows the section of the support member to sense the pressure in the line or vessel through the sealing element independent of the burst pressure characteristics of the sealing element.