Abstract: A tubular staff flagged at an end, composed of a fluorescent polyvinyl plastic, placed on the distal end of a fishing rod tip for the purpose of signaling a fish strike and aiding in the identification of the fishing rod tip from the surrounding background especially under dusky light conditions.

Abstract: In apparatus for shot peening, gravity is used to accelerate uniform sized steel shot, and thereby impart a combination of good surface finish and uniform compressive stresses to workpieces. It is especially useful for finishing gas turbine airfoils. Shot is introduced into the peening enclosure (28) through a gate (40) at near zero velocity. It is then accelerated along a streamline (31) toward the workpiece (18) with uniform velocity. The workpiece, positioned along the streamline, can be manipulated in three rotational modes: oscillatory rotation to uniformly peen contoured surfaces of a workpiece, periodic incremental rotation to peen different sides of a workpiece; and, tilting motion to enable peening of shoulders (22). The apparatus is especially suited to peening fragile workpieces such as gas turbine airfoils (18). A diverter plate (44) intercepts the shot stream at times when repositioning of a fragile workpiece is undertaken.

Abstract: An automatic rat killing device includes a box having an opening at its top and a stairway leading to its top. A pair of closure plates are pivotally mounted at their one ends on the box for movement between horizontal positions where the two closure plates are mated together at their other ends to close the opening and vertical positions where the closure plates are separated apart to open the opening. A solenoid is mounted on the box and has a stop lever normally engaged with the closure plates to hold them in their horizontal positions. A container holding a viscous liquid is removably accommodated within the box. A detector generates a detecting signal when a rat touches a bait. The solenoid is energized to move the stop lever out of engagement with the closure member so that the closure plates are moved to their vertical positions, thereby causing the rat to fall into the viscous liquid.

Abstract: A suspension chain head for mechanically assembled sling chain systems is proposed. The suspension head has a U-shaped suspension member with two legs and a web provided with a central portion and two lateral fork portions. A connecting member is pivotally mounted on the web of the suspension member and has two legs received in slots of the web and a bracket connecting the legs with one another, wherein the connecting member has a receiving opening with a width corresponding to the thickness of the chains to be suspended. The central portion of the web of the suspension member has a thickness at most equal to the thickness of the chains to be suspended, and the forked portions of the web of the suspension member have at least the thickness of the central portion of the web.

Abstract: A press and press method wherein an article is shaped by displacing a tool thereagainst in a plurality of time-spaced main strokes separated by intervals in which the energy for the main strokes is stored in a force-storing element such as a rod under tension and during these intervals, the tool continues to be advanced against the article by an auxiliary motor. The apparatus utilizes a lever pivotally connected to a support, to the force-storing element and to the tool. The main drive motor acts on this lever.

Abstract: A hydraulic drop forging press has a prestressed frame comprising vertical columns and crossheads. A stationary piston is mounted on an upper crosshead and the press tool is carried by a moving cylinder. The cylinder is guided in a stationary upper guide mounted in the intermediate crosshead, and lower guides on the cylinder are guided on the columns.

Abstract: A chain coupler link or a chain lock made preferably of round steel is assembled of two complementary J- or U-shaped link halves each having two arms of different lengths. The ends of respective arms are formed with interlockable tongue-and-groove joints and the facing wall portions of the longer arms are formed with arresting grooves directed transversely to the center plane of symmetry of the link. An arresting nose piece is insertable between the wall portions so that the projecting noses engage with respective arresting recesses. A sloping bore passes through the link halves and through the arresting piece to receive a safety pin. To ensure an unobstructed insertion of the safety pin into the sloping bore, the noses and the corresponding arresting recesses have different cross sections, so that the arresting pin is insertable between the link halves in a single orientation only.

Abstract: A watchband is comprised of a plurality of interconnected segments of generally helical shape. The segments are formed of tubular metal rods which may be composed of a noble metal alloy, a copper alloy or stainless steel. The use of tubular metal rods as opposed to solid metal rods results in a reduction in materials costs and a lighter weight watchband. The watchband is manufactured by winding a tubular metal rod on a mandrel into a generally helical shape, cutting the helically-wound tubular metal rod to predetermined lengths, and connecting together the lengths in lengthwise juxtaposition so that the coils of one length partly overlie the coils of adjoining lengths to thereby form a watchband comprised of interconnected tubular metal rod segments. By using tubular as opposed to solid metal rods, the annealing process normally required in order to wind the rod into helical shape can be eliminated.

Abstract: An improved rotating frame animal trap includes jaw-forming sides which, in the closed position of the trap, are projected toward one another from parallel sections of their supporting end members. This configuration provides the correct jaw spacing in the closed position of the trap to maximize the jaw pressure for a given spring force.

Abstract: A baited marine animal trap for lowering into the water where the doors open to entice marine animals and the marine animals are trapped by elevating the trap and closing the doors. The present trap has the openings on the sides reduced to decrease the probability of the escape of the trapped marine animals.

Abstract: Filament reinforced cylindrical plastic screens having open slots defined by their surface wires which are of substantially different widths can be produced on a single helically finned mandrel. The slot widths are varied in accordance with the amount of wire-forming material placed in the generally V-shaped grooves defined by the mandrel fins. The grooves have a double relief angle so that the lower support portions of the surface wires will be formed so as to have a slightly tapered, radially elongated cross-section and the upper portions of the wires will have their sides at a substantially greater relief angle. This relationship permits a relatively small change in the total height of the wires to have a substantial effect on the width of the top portion of the wires, and thus, on the width of the slot openings which can be formed between adjacent wires.

Abstract: A method of forging track tractor rollers and other multi-flanged rollers, which comprises busting of a billet to a preformed coned end and placing a split ring around the coned end of the busted and preformed billet, and inserting the same in a stepped blocking die to form flanges by blocking against the split ring and the stepped die for one flange and between the top die on the other flange and removing the split ring and billet. When placed in a finishing die, the hollow of the roller is formed by a displacement method which forces the metal into the flanges against the split ring.

Abstract: In the case of a plug contact which consists of an electrical contact body (11) and of a spring sleeve (12) with a longitudinal joint (43), encompassing said contact body on the outside, the fixation of the spring sleeve on the contact body has been solved as follows: The portions of the spring sleeve (12) adjoining the longitudinal joint (43) each have a perforation (51) with which an anchoring cam (53) of the contact body (11) projecting to the outside is in locking engagement. Between each perforation (51) and the longitudinal joint (43), there is a hold back bridge (55) which, in cooperation with the adjacent anchoring cams (53), firmly holds the spring sleeve (12) tensed in flush contact along the periphery of a cylindrical portion of the contact body (11). For the manufacture of the plug contact, a sheet metal blank for the spring sleeve (12) is bent into a U-shape, the U-bridge and U-legs of which each run along a circular arc over about 120.degree.

Abstract: An improved backgauge structure for a metal working machine as, for example, a press brake with improved rotatable gauging fingers that can be rotated 90.degree. and pulled out for replacement but which will not fall out and which are spring loaded so that the gauging fingers can pivot upwardly in response to movement of the material and further including a pivoted channel member to which the gauging fingers are attached so as to provide improved gauging.

Abstract: An improved connector for coupling a chain to a wire rope or cable such that the resulting connection can be passed over a sheave, pulley, wheel or windlass without excessive stress applied to the wire rope. A housing is provided having an axially symmetric opening through the housing with an exterior surface adapted to rest upon the outer peripherial portion of the windlass (or the like) as the connection traverses the windlass and wherein a retaining pin perpendicular to the axis of the opening at essentially the center of the housing holds a pair of rotatable U-shaped members within the housing for connecting the chain to the wire rope. Such a connection is particularly useful in coupling an anchor chain to a wire rope in anchoring systems.

Abstract: The invention relates to an automatic machine for bending the extending conductors of an integrated circuit chip to form contacts for mounting the chip to a substrate. This machine comprises a bending base (20), movable bending pieces (18, 19) situated opposite the bases, a ribbon insulating support (2) for the chip (1), and a platform (27) to displace the support of the chip so as to being the chip onto the base, or to remove it therefrom. This machine is characterized in that the bending base (20) includes a housing (21) having the form of the chip for receiving the chip and having a plane rim (23) adapted to surround the body of the chip. The first movable piece (18) is located in the second movable piece and has a flat rim (24) opposite the flat rim (23) of the base. The extending conductors are wedged during the bending operation between these two rims (23, 24) and the bending is carried out by the second movable piece (19) which moves rectilinearly in a vertical direction.

Abstract: A chain link plate including a pair of enlarged end parts joined by an intermediate constricted part. Each end part has an opening therethrough. The link plate is symmetrical about a first axis which extends longitudinally of the link plate and passes through the centers of the openings. The link plate is also symmetrical about a second axis which extends perpendicular to the first axis and perpendicular to the axes of the openings. Each end part has a convex curved exterior edge surface generated about a first radius which is centered on the first axis. The intermediate constricted part has upper and lower concave curved exterior edge surfaces each defined about a second radius which is generated about a center point located in sidewardly spaced relationship from the link plate. The second radius is equal to the first radius.

Abstract: A roach trap including a housing removably on a container. A tube is provided between a roach entry compartment and bait compartment, and a disposable bag is contained in the bait compartment for catching roaches urged through the tube by a helical empeller triggered by an electric eye means.

Abstract: An improvement is disclosed for a trolling plane of the type comprising a wire frame for connection of a fishing line to a trolling line and having a hydrofoil mounted on a support section and a connecting ring for the trolling line slidably connected to a ramp section of the frame. The improvement comprises a wire frame formed as a closed loop with a hydrofoil of inverted V-shape cross-section mounted on the support section for pivotal motion about its longitudinal axis relative to the frame.

Abstract: An isolator device to electrically insulate and isolate a separate component in a circuit board arrangement to allow for relatively fast and convenient diagnostic inspection of a circuit to locate failed components. The device has an isolator sleeve with a cavity which receives the lead of the component while the lead is in situ on the board. The component lead is electrically insulated from the board circuitry to permit separate testing of the component's integrity.