Abstract: A method for forming a long-life gas trap comprises basically (a) machining an elongated solid element in a cruciform cross-sectional shape from mill stock for forming a housing with four arms, (b) machining each arm to a square cross-section with four flat surfaces thereon, (c) boring a hole centrally and longitudinally of the housing for forming an elongated chamber having a longitudinal axis, (d) boring a hole parallel to the elongated chamber in each of the four arms of the cruciform shaped housing contiguous to the elongated chamber for forming four tubes contiguous with the four sides of the elongated chamber, and (e) bending the ends of at least four of the tubes with a bending fixture having a roller to a position normal to the longitudinal axis for forming a gas trap that has longer life because of the high resistance to cracking due to continuously alternating between thermal expansion and contraction.

Abstract: A method of manufacturing brake drums or the like and apparatus therefor that minimizes scrap rates by improving as-manufactured balance. In accordance with the disclosed method, the casting rim of the brake drum is located in a press by centering the drum relative to its outer surface. Locating holes are then accurately formed in the drum center by the press prior to machining of the drum inner surface. The subsequent machining operation on the drum inner surface is accomplished by locating the drum accurately via the locating holes formed in the press operation.

Abstract: A piston and cylinder assembly and a method for manufacturing the piston assembly. The piston assembly includes a circular integral piston. A glass-filled plastic bearing material is disposed completely annularly about the piston and extends entirely between end faces of the piston. The plastic bearing material provides a bearing surface for sliding engagement with an inner surface of a cylinder of the cylinder assembly. An annular groove extends through the plastic bearing material and into the piston between the end faces. The piston includes a central bore which is concentric with the groove and the outer circumference of the plastic bearing material. The method for manufacturing the piston assembly includes the step of disposing the piston on a positioning pin which extends into the central bore and disposing the piston in an enclosed mold cavity which is defined by a mold.

Abstract: Apparatus to apply dyestuff to a moving sheet of fabric which employs a unique construction of dye applicator or gun constructed basically in two clam shell sections with the clam shell sections being made in sets for ease of adjustment and installation. The dye applicator or gun includes a multiplicity of dye jets made by grooving each of the clam shell sections, mating the sections and then drilling the grooves to the proper size.

Abstract: Gas separation nozzles are produced by machining the nozzle parts, such as a holding body and separation elements by moving sectional material, for example, prefabricated sectional steel or aluminum alloy rods through a high precision sliding guide path past a shaving tool, whereby the workpiece is pressed against supporting and retaining surfaces of the guide path at least at three points and a shaving tool is applied to the moving workpiece in an area defined by said three points so that the tool is effective as close as possible to the pressure applying points or areas. At least two separation elements are supported in a dovetail groove of a holding body so that nozzle edges of the elements extend into a gas deflection groove in the holding body. Where four separation elements are held in a common dovetail groove of the holding body, two of the four elements are provided with a gas deflection groove extending along its respective nozzle edge.

Abstract: An article and a method for manufacturing the same, for use as a jaw face of a vise and which applies pressure evenly along any approximately flat surface clamped therein. The face comprises a plurality of cantilevered beams integral with the body of the jaw. The beams are spaced apart from each other and in the preferred embodiment have along a corresponding exterior surface of each, a pair of projections the tips of which are tangent to a geometrically flat plane. When the jaw is used, the projections bear against a flat surface of the workpiece to be clamped and the individual beams deflect slightly to correct for deviations from flatness in the flat surface, thereby assuring that the clamping force is distributed relatively evenly along the surface. A preferred method for manufacturing this article comprises the making of a plurality of cuts perpendicular to the jaw face of a block, which carries the projections.

Abstract: In a rotary feeder, a sealing surface on the end of each compartment defining radial wall is closely spaced from the peripheral surface of the rotor cavity in the housing, a distance that establishes controlled laminar fluid flow between compartments. Preferably, the sealing surface has an approximately uniform spacing from the peripheral surface of the cavity and a matching curvature, and is formed on a blade at least as wide as the radial wall.

Abstract: A method of reconditioning tubular, multi-bobbin wire stranders employing under-roller supports in contact with radially protruding load bearing surfaces which comprises reducing the circumference of said surfaces while machining said surfaces to within 0.001 inch tolerance, providing said supports with an increased roller circumference and machining said circumference to within 0.001 inch tolerance, and placing said supports in fixed position to said surfaces whereby said supports are leveled to within 0.002 inch per foot of the centerline of said strander. The above method reduces the incidence of maintenance and can reduce the noise generated by the stranger by as much as 15 dBA.

Abstract: A process for fabricating precision components of the type including at least one member which is of a sectionalized construction comprising a plurality of assemblable mated sections. The sectionalized member is produced from a plurality of preliminarily formed sections which are adhesively secured into a bonded assembly which is finish machined as a unit, whereafter the bonded assembly is cleaved to provide a matched set of sections for use in the final assembly of the component.

Abstract: Method for producing an ejector device including forming a profile rail, drilling holes in the rail to receive ejector nozzles therein and inserting the nozzles in the holes, closing the ends of the rail with end walls, and severing a desired length of the rail to produce the device.