Abstract: A blower comprises a unit blower housing of molded plastic material having a circular outer wall and laterally spaced front and rear walls, defining an impeller chamber and a tangential outlet upon a first axis adapted to receive a flexible hose. The outlet defines with an end portion of the outer wall a reverse curved cut off edge extending between the side walls. An opening in the front wall is arranged upon a second axis at right angles to the first axis and receives an air inlet secured to the housing by a plurality of threaded inserts molded into the housing. An electric motor upon a support has a drive shaft extending through the rear wall. The rear wall is mounted upon and secured to the motor and an impeller is positioned within the housing and axially mounted upon the motor shaft and has an air intake receiving the air inlet cone.

Abstract: A process for mounting chip type circuit elements on printed circuit boards and apparatus therefor are capable of eliminating the necessity for arranging an X-Y table, thereby to simplify the structure of the apparatus, and decreasing the time required to mount one circuit element on a printed circuit board. Chip type circuit elements are sucked up by a plurality of suction pins arranged in each mounting head, transferred to a centering and turning section and then progressively mounted on a printed circuit board. The mounting head is adapted to carry out the reciprocating movement in the X-direction a plurality of times while it carries out the reciprocating movement in the Y-direction one time.

Abstract: A process and machine are provided for the formation of expanded mesh materials in which a slotted starting sheet is bent along at least one succession of alternate strand diagonals (1,2, 3, 4, 5; A, B, C, D), each strand (20) in any one diagonal being bent simultaneously in at least two positions in the same manner and to the same extent so that the strands (20) of the strand diagonal (1, 2, 3, 4, 5; A, B, C, D) being bent remain in substantially parallel planes during and after bending. A "strand" (20) is defined as the area of overlap between adjacent rows of slots (10) at each end of a respective slot (10) according to the slot pattern in the slotted starting sheet.

Abstract: A method and machine for making screw-on connectors is disclosed. The connectors have an insulating shell with a bore open at one end and a wire coil in the bore of the shell. The method includes the steps of heating the coils sufficiently so that it in turn heats the bore of the shell in contact with it to soften the interior of the bore, and applying a compressive axial thrust between the shell and coil while the interior of the bore is still soft to force them together to a predetermined axial relation. A suitable machine for accomplishing the steps of this method is also disclosed.

Abstract: Apparatus for terminating a ribbon cable formed of electrical conductors in a web of electrical insulation during the attaching thereof to a connector. The apparatus comprises a guide member releasably coupleable with the cable at a predetermined location with respect to the end of the cable. The apparatus also comprises means to sequentially couple the guide member and cable end in operative relationship with a series of processing stations whereat the guide member functions to accurately locate the cable end with respect to the operating mechanisms of the processing stations. Such processing stations are operative for the attaching of the cable end to a connector. Also disclosed is the method of terminating a ribbon cable with such apparatus.

Abstract: A method for manufacturing parts for rotary machines, especially turbine wheel disks, having a hub bore in a hub region, as well as turbine wheel disks manufactured by the method, includes pre-turning a contour at the hub region having a profile differing from a hub contour to be produced. At least the hub region is initially treated. At least the hub region having the pre-turned contour is cooled with a coolant fluid after the initial treatment to produce internal compressive strains in the hub region. The pre-turned contour is reduced after the cooling to the hub contour to be produced.

Abstract: A plastic leaded chip carrier connector of a base having a plurality of apertures for receiving and orienting a plurality of wire pins therein, and a plurality of wire pins each of a predetermined configuration lockingly engaged within a corresponding aperture of the base for transmitting electrical information therethrough. A method for making such connectors by aligning the base with a wire feed device, advancing one end of a wire from the wire feed device on one side of the base through an aperture in the base to the opposite side of the base, forming a predetermined configuration of the wire end, retracting the formed wire into the aperture to lockingly engage said formed wire end therein, cutting the wire to form a pin locked in the aperture, and repeating the previous steps to form a pin in each aperture of the base. Also, an apparatus for carrying out this method to manufacture the desired connectors.

Abstract: A method of producing a pitted roll for an offset litho press inking unit, more especially as part of a short inking unit, comprising the application of a dual coating layer of which the inner layer is formed of a material such as copper with a high affinity for ink and the outer layer is formed of ceramic material to give lands wiped by a doctor, preferably set at a negative angle, around the pits. A high wear resistance and a high accuracy may be achieved if the plain base member of the roll is coated with copper or the like and then with ceramic material, after which engraving takes place to penetrate the ceramic layer right into the copper or the like material with an affinity for ink.

Abstract: A press roll for a web comprises a support body which is either stationary or rotatable and comprises a press shell which is rotatable over the support body and against a mating roll. A respective shell support element or disc is disposed axially outward of both ends of the support body and the support element has an axially outward, face side. The flexible, liquid impervious endless belt press shell has lateral edge zones. Each edge zone has a respective plurality of outwardly projecting tongues and has cutouts between neighboring tongues. The edge zone is turned radially inward and its tongues are each respectively mounted on a holding element projecting from the face side of the shell support element. Centering elements also on the face side of the shell support element are placed each for extending into and contacting the base of the cutouts between neighboring tongues for positioning the tongues.

Abstract: An appartus (10) attaching successive pairs of wires (12) to successive pairs of opposed contacts (15) of a connector (16) comprises a connector-carrying carriage (44,46) mounted for movement along a longitudinal axis. Each of a pair of ram assemblies (100) is mounted on opposite sides of the carriage for movement to and from a separate one of a pair of opposed contacts on the connector. Each pair of wire guides (58) is situated adjacent to a separate one of the ram assemblies for guiding a wire pulled thereacross into alignment with one of a pair the opposed connector contacts. Once each wire is aligned with the connector contact, each ram assembly is actuated to attach the wire to the contact. After wire attachment, an advancing mechanism (120, 126, 134, 142, 146) advances the carriage so that each of a successive pair of contacts is opposite a separate one of the ram assemblies.

Abstract: A method for manufacturing a probe test structure for microcircuits utilizes a multiple coating method in conjunction with a novel double-cell electroplating apparatus having a relatively high-resistance ion path between the cells. Photoresist is applied to both sides of a copper foil, copper posts are electroformed onto selected areas of one side of the foil through image hole patterns, the remaining photoresist is stripped away, polyimide prepreg is laminated to the post side of the foil, the copper posts are exposed by sanding, photoresist is reapplied to both sides of the sanded remainder, additional copper is electroformed on each post through image hole patterns in the post side of the photoresist, the foil on the side opposite the posts is chemically milled to provide leads integral with each post using appropriate masking techniques and, finally, all of the remaining photoresist is removed to leave the desired test probe set.

Abstract: The instrument panel is clamped at both longitudinal ends thereof onto an assembly jig mounted on a robot arm. The jig holding the panel is inserted widthwise into the car cabin through a door opening. The jig is moved to a preassembly position where the end walls of the panel overlap outer side surfaces of mounting brackets previously installed in the car cabin. The end walls of the panel are then fastened in place by nut runners provided at both ends of the assembly jig. The nut runners are mounted on tool holders which are able to perform a floating movement in a plane perpendicular to the car width direction. Positioning devices are provided at both ends of the jig to correct the position of the tool holders with respect to the brackets to align and position the panel so that the mounting holes in the end walls of the panel line up with the tapped holes in the brackets.

Abstract: A method and apparatus for expanding copper and aluminum tubes in either compression expansion or tension expansion which is adjustable to expand different configurations of coils on row at a time.

Abstract: An apparatus and method of manufacturing bundles of electrical cables. The bundles include a plurality of main conductors and a plurality of secondary conductors. The main and secondary conductors both include a conductor core and an insulating sheath. The ends of the main conductors include box-like connection elements which are either male plugs or female sockets. The method includes the steps of: stripping an intermediate portion of the main conductors; stripping the ends of the secondary conductor; positioning the stripped portions of the main and secondary conductors tightly against one another; mounting a thimble on the two stripped portions; and mounting a band of cold-deformable insulating material on the thimble. The apparatus includes devices which perform each of these functions.

Abstract: A multilayer printed circuit board in which multiple layers of a composite material, fabricated by the lay-up of an aramid fiber tape, are employed to provide a circuit board with a desired coefficient of thermal expansion. Tape lay-up of aramid fibers provides a composite layer having a lower thermal coefficient of expansion than a composite layer fabricated from woven aramid fibers. Degradation in the tensile modulus of elasticity caused by the over and under characteristics of woven fabrics is also eliminated by tape lay-up, thus providing a circuit board with better mechanical strength. In addition, tape lay-up reduces the amount of resin required to fabricate the circuit board and eliminates the need for twisting the aramid fibers into yarns and then weaving the yarns, thus reducing the cost of the circuit board.

Abstract: An electrostatic or thermal printhead and method of fabrication is provided in which dielectric material is disposed in a row of spaced depressions or in a single recess along the upper surface of an edge of a dielectric-coated conductive sheet. Electrodes are disposed along the edge of the sheet over the dielectric material and terminate at associated conductive pads or printhead circuitry on the sheet. In one embodiment, the edge is trimmed and left bare to form an inexpensive electrostatic printhead. In an alternate embodiment, resistive material is disposed over the edge to connect the electrodes to the conductive sheet to form an inexpensive thermal printhead.

Abstract: A method and apparatus for producing thermoplastic frames for fenestration in which extruded frame members are cut to length, heated to a selected temperature uniformly throughout their cross section to soften the material and while heated, profiling selected portions of the cut members, driving a fastening clip with a hole therein into one of the cut members, and drilling holes in portions of the cut members in locations for coaxial alignment in assembly of the cut members, a hole in the fastening means plate coaxial with one of the drilled holes, and placing the members in selected angular assembled relation and inserting and threading a securement member into the aligned holes of the cut members and the fastening plate for retaining the frame members in assembled angular relation.

Abstract: An automatic SMD equipping unit utilizes a rotatable and displaceable multiple equipping head (1) with plural suction pipettes (2) and a device carrier (7) that contains processing stations (8). The multiple equipping head (1) executes a collecting event via delivery units (4) whereby it picks up components. The equipping of the printed circuit board (5) from the equipping head occurs in a second procedure, whereby the multiple equipping head (1) need not move back and forth between delivery unit (4) and printed circuit board (5) after every placement of a component (3) onto the printed circuit board (5). The components that were picked up by the suction pipettes (2) are processed by processing stations (8) after the collecting and before the equipping. Here, the components are centered, contacted, measured and tested.

Abstract: A back-up roll in a rolling mill is provided with multiple cylindrical rollers fit circumferentially between a roll shaft of the back-up roll and an outer casing thereof, and a tapered roller bearing is provided between the roll shaft and outer casing and juxtaposed to said cylindrical rollers and which receives a thrust load acting on the cylindrical rollers. The tapered roller bearing is composed of an inner ring set to the outside of the roll shaft, an outer ring fixed to the inside of the outer casing and in contact with ends of the cylindrical rollers, and multiple tapered rollers fit between the inner and outer rings.

Abstract: A method for obtaining an electrical earth connection device wherein a metal plate having a threaded seat is provided with a screw having a flanged head which is tightened against the plate, whereupon the assembly so formed is affixed to a vehicle body and the vehicle body together with the connection device is painted in a painting bath, whereupon the screw is loosened to receive a cable terminal.