Abstract: An apparatus and method employing a plurality of heating boats to provide for the soldered assembly of leads, electronic components and plastic jackets without intermediate handling steps. Two heating boats are positioned on either side of a jacket retaining block such that the heating cavities of the first boat are aligned in an opposed relationship with the heating cavities of the second boat. Passageways through the plate extend between the opposed heating cavities. The heating cavities of the first boat receive leads, electronic components and solder wafers which are heated to form assembled electronic devices. The assembled devices are then moved through the passageways in the plate into the second boat where jackets, previously positioned in the heating cavities of the second boat, are heated to recover about the leads and components. The leads are maintained in alignment in passageways extending from the closed ends of the heating cavities to prevent premature bending loads on the assembled components.

Abstract: A method for producing multilayered contacts for medium-voltage vacuum power circuit breakers is provided comprising impregnating under vacuum with oxygen-free, liquid copper, a composite body of metal powders consisting of at least 35% by volume of a metal selected from the group consisting of chromium and vanadium and at least one metal selected from the group consisting of chromium, vanadium, cobalt, nickel and iron, in a crucible comprised of a metal selected from the group consisting of iron, steel, and chromium-nickel steel; and removing at least part of the crucible to expose a contact surface.

Abstract: A metal fence post having an irregular polygon shape which is strong and resists bending and twisting better than posts made of the same gauge metal but of other construction. The method of making the fence post and the manner in which fence wires are tied thereto in order to construct an extra strong fence are included.

Abstract: This invention provides a method and apparatus for expanding spiralweld pipe. The expander head is cantilevered at a fixed location and the spiralweld pipe is advanced in stages around the expander head, moving in the direction of the pipe axis. At each stage, the pipe is stopped, and the expander head is expanded to cause expansion in the pipe. The expander head has on its surface a helically arranged recess matching the main weld of the pipe. As the pipe is moved between adjacent expansion locations, it undergoes axial and rotational motion so that the main weld tracks in registry with the recess.

Abstract: This is a method and apparatus for removing ties from under railroad track and is specifically concerned with removing ties in one piece and involves removing the high wood from the ties in the area between the rails of the track and on one end thereof so that the tie may be pulled or pushed out the other way.

Abstract: A ball header is disclosed in which the movable die is mounted directly on the machine frame rather than on the reciprocating slide. The position of the movable die is controlled by a cam driven pusher so that the movable die position is dependent of the position of the reciprocating slide. The machine provides a greater portion of the machine cycle for the movement of the transfer from between the dies after the blank is gripped and controlled by dies. The machine further provides a closed or bushing cutter to improve the shearing of the blanks from the wire stock so that the part formed by the machine can be closer to the finished size of the product to reduce the material content and the cost of finishing operations. The accuracy of the positioning of the movable die is also improved by the mounting of the movable die directly on the frame rather than on the reciprocating slide.

Abstract: A liner element for a housing of a rotary piston machine is manufactured from a flexible metal strip and is deformed for example by pressing on one side thereof such that when the liner is assembled in a semi-cylindrical bore in the housing, the inner surface of the liner element has a trochoidal shaped surface to receive the rotor of the rotary piston machine.

Abstract: A novel tool and method for extracting arrowheads from stumps, trees and the like using a linearly slideable housing or hammer mounted on a shaft which is attached to the arrowhead is described. In particular, the tool is provided with a retaining means to hold the shaft in the housing to prevent accidental movement and thus noise in use in the field. The tool preferably has a round shaft which is rotatable in an extended position in the housing which facilitates arrowhead extraction during linear movement and which in its retracted position in the housing engages a locking means which holds the shaft from rotational movement to permit threading of the shaft onto and off from the arrowhead by rotating the housing.

Abstract: A distribution rotor is prepared by forming an electrode, having a central electrode part, an outer electrode part, and connecting parts, and fixing a resistor to both the central electrode part and the outer electrode part, subsequently severing and removing the connecting parts, and molding the assembly of the electrode and the resistor with a resin so as to form a one piece resin housing thereabout.

Abstract: Damaged tubes are removed from a multi-tube finned coil of the type in which the tubes are expanded into the fins by cutting a helix in the tube wall for the length of the tube from internally of the tube and then pulling the tube out by collapsing the helix upon itself.The tool for accomplishing this has a cutting end portion which has a succession of cutting teeth in a helical array in one rotative direction and with the tips of the cutting teeth successively along the length of the cutting end portion generally progressing radially outwardly from about the internal diameter of the tube to about the external diameter of the tube to be removed, the cutting portion also having a series of flutes extending helically along the length of the cutting end portion in the opposite direction from the helical array of the teeth, the tool being used to carry out the method of cutting a helix into the wall of the tube as the cutting end portion of the tool passes through the length of the tube.

Abstract: A method is disclosed of forming a header assembly in which a plurality of tubes transition into a single header passage. The method includes forming a blank extrusion comprised of a plurality of juxtaposed tube elements interconnected by web sections of a thickness approximately double the wall thickness of the individual tube members in the blank. The blank is placed in a female die and a wedge-shaped male forming tool is advanced into the blank for a portion of the length of the blank, the male forming tool being configured to split the interior of the blank along the center of the web sections as the tool advances thereinto, forcing the web sections and connected tube portions apart and into contact with the wall of the female die cavity to form the header section.

Abstract: An apparatus for attaching slotted plate terminals or the like to individual wires such as the wires of a stator coil in an induction motor is disclosed. A rotatable arbor positions the stator in alignment with an insertion track and ram. A terminal is inserted by moving it along the tracks and into a cavity in an insulating housing mounted on the stator. A guide track along which an insertion ram moves a terminal also acts as a depth control for accurate positioning of the terminal.

Abstract: An individual metallic, electrical conductor is terminated by heating one end thereof to form an enlarged molten mass, followed by cooling and subsequent shaping of the mass to form a terminal. Multiple conductors are spliced by heating adjacent ends thereof to form an enlarged, common molten mass at the end of each conductor. Alternatively, adjacent ends of multiple metallic conductors may be spliced by heating the ends thereof to form a molten mass at the end of each conductor followed by plunging the molten masses into one another.

Abstract: A male electrical plug and method of assembly thereof, the electrical plug including an elongated interior conductor on which a nonconducting insulator is fixed, the length of the insulator being less than that of the interior conductor and being located thereon such that during assembly an outer end and opposite inner end of the conductor are exposed. A metallic conducting sleeve is mounted on the insulator and is foreshortened relative to the outer and inner ends thereof, and a head pin is fixed to the outer exposed end of the conductor and is insulated from the sleeve by the insulator. Conducting wires are electrically connected to the exposed inner end of the conductor and to the sleeve, and a molded body or housing encapsulates the connections of the conducting wires to the conductor and sleeve.

Abstract: Two metal rings are produced having a concave C-shaped cross section, open in an axial direction. In particular, annular sealing members are formed by deep-drawing a strip, the outside diameter of one ring being slightly smaller than the inside diameter of the other ring.

Abstract: A system for the disassembly, warehousing and inventory of used vehicle parts obtained from used vehicles has conveyor means on which a used vehicle is transported during disassembly, means for removed used parts from the used vehicle while it is being transported on the conveyor, and a storage area for storing the used parts removing during disassembly. The system further has means for identifying the used vehicle parts stored in the storage area and means for maintaining inventory records of the used vehicle parts which are stored in the storage area. A method for providing used vehicle parts obtained from used vehicles compromises the steps of conveying a used vehicle along a conveyor line, sequentially removing selected used parts from the vehicle, identifying used vehicle parts, storing used vehicle parts in a storage area and entering and maintaining inventory information on the used vehicle parts in a record-keeping system.

Abstract: Single-slide press with single work-input stroke and other characteristics and advantages of single-action press carries out multiple functions of double or triple-action presses in the manufacture of cup-shaped articles. A blank is cut from flat rolled sheet metal and clamped while being drawn into a cup shape; the drum cup can be redrawn into a cup of smaller diameter and greater sidewall height. Work-input force applied to the work product is modified as required for each step with fluid controlled cylinder and piston means mounted to permit relative movement of portions of the single slide means for carrying out the individual steps in sequence.

Abstract: A method of forming a pair of identical spherical mirrors having their centers of curvature separated in space. A blank having substantially parallel planar front and rear surfaces is provided. The front surface is scored to divide it into two surface segments. The entire front surface is then ground to a spherical shape. The blank is then bent along the scored region to separate in space the centers of curvatures of each of the surface segments.The foregoing abstract is not to be taken either as a complete exposition or as a limitation of the present invention. In order to understand the full nature and extent of the technical disclosure of this application, reference must be had to the following detailed description and the accompanying drawings as well as to the claims.

Abstract: A method for making a circuit package which exhibits an excellent heat transfer path from a semiconductor chip or other heat generating device to the heat sink can or cover of the package. A heat conducting pad is placed in proximate relationship to either the heat sink or to a surface of the chip and is metallurgically bonded to the other. In one of the preferred embodiments a low melting point solder, such as indium or an alloy thereof, is metallurgically bonded to the inside of the heat sink cover in a limited central region thereof. The solder is then positioned adjacent the chip and reflowed to substantially fill in the gap between the solder and the chip, but with no stress between the chip and the solder. The assembly exhibits excellent heat transfer from the chip to the cover and any associated heat dissipating structures.

Abstract: A circuit package exhibiting an excellent heat transfer path from a semiconductor chip or other heat-generating device to the heat-sink can or cover of the package. A heat-conducting pad is metallurgically bonded to either said cover or a surface of said device; the pad is also separably attached, but metallurgically unbonded, to the other. In one preferred embodiment, a readily deformable metal or alloy, such as indium, is metallurgically bonded to a limited central region of the heat sink cover. The deformable metal is separably attached to a major surface of the chip so that there is no stress between the chip or its joints and the solder during the electrical operation of the chip when it generates heat. The preferred method of fabrication involves the mechanical deformation of a mass of solder against the back side of the chip, after the solder has been metallurgically bonded to heat sink.