Abstract: A travelling hopper belt car has a feed chute and a throw-off conveyor belt that can pivot in a vertical plane around a horizontal axis in the area of the feed chute. The side walls of the feed chute are designed in two parts with the upper side section in each case foldable down around a horizontal axis at least to the height of the axis.

Abstract: A high pressure mix-head for use in reaction injection molding systems includes a full cross section plunger and a piston valve assembly selectively positioned in response to recirculation and pour cycles to control flow through recirculation passages formed on the O.D. surface of a mix-head sleeve.

Abstract: Suture tying forceps of improved construction are disclosed which materially reduce a suture being flexed therein from breaking. The suture typing forceps include a pair of members mounted in the free ends of a pair of gripping arms integrally joined at one end. The members terminate in a pair of suture tying tips, respectively featuring a pair of complementary mating surfaces serving as suture clamping surfaces. For the most part, the suture clamping surfaces are designed to clamp a suture segment which is about ten times the thickness of the suture. The suture clamping surfaces further are designed to define a flexing angle transversely thereof which is less than a right angle.

Abstract: A connecting elevator for serving, handling or working units which operate on mine benches of different level, comprises a supporting structure carrying a hoisting equipment and being supported, at least at its upper end for travelling on a bench, with the hoisting equipment comprising hoisting vessels running on rails and suspended from ropes whose winches are mounted on the upper end of the supporting structure.

Abstract: A pressure-responsive valve exhibiting unusual restoring force includes an elastically deformable diaphragm having a plurality of non-intersecting, non-meeting, separate arcuate slits, each slit having a base which is intersected by at least one other slit, and each slit being out of intersecting relation with its own base.

Abstract: A machine tool, such as an internal grinding machine, includes a tool quill with a hollow tool having a deformable hub releasably held thereon and a compound slide for moving the tool quill relative to a tool removal arm and a replacement tool storage chute. The tool removal arm includes a tool enter station and tool strip station and is rotatable between the workpart axis and a tool discharge chute. For removal of a worn tool, the arm is rotated to position the tool enter station for insertion of a worn wheel thereon by slide movement toward the arm and then rotated to capture the worn wheel at the tool strip station. The slide is then retracted away from the arm to pull the quill out of the hollow tool, leaving the captured tool on the arm. The arm is rotated to carry the worn tool to the discharge chute for disposal while the slide positions the quill at the tool storage chute.

Abstract: Apparatus and a process for manufacturing multiple color thin-walled hollow sheels for parts such as automobile door panels, consoles and instrument panels from dry thermoplastic plastisol includes a supply box with a divider to form two or more compartments in the box. The box divider cooperates with selectively positioned split mold parts defining a separation in an open-ended heated mold for separating the mold into two or more sections. Complementary open ends of the charge box and mold are joined. Then the apparatus is rotated so that the powder is distributed into each mold section by gravity flow with the powder from each section flowing to the divider which separates the colors so as to form two or more tones on a resultant shell of cured material; thereafter the powder box is removed and the split mold parts are joined to clamp cast shell segments for fusion at a joint line.

Abstract: An interdental toothbrush has a handle made from a mixture of a thermoplastic elastomer and a general purpose polypropylene. A twisted wire brush projects from the handle in axial alignment therewith. The toothbrush can be held within a loosely clasped fist, with one end of the brush held between a thumb and an index finger. By manipulating the thumb and index finger, the angle at which the brush projects may be changed at will. In this way, the insertion of the brush in more difficult to reach spaces in or around teeth is more easily performed.

Abstract: A portable lift for the bench frame of a vehicle measuring, bending and aligning system with two pairs of pivotally interconnected arms driven by a pair of fluid actuated cylinders, all of which are carried by a base and when fully lowered received between longitudinal rails of the bench frame. Preferably, the lift is operated by a portable and remote power and control unit. Preferably, when raised, the lift is prevented from suddenly dropping to the fully lowered position in the event of a failure or malfunction of the drive cylinders or power unit by a catch mechanism disposed between the arms of the lift.

Abstract: A system for mounting a component on a wall and the like includes inner and outer brackets adapted for attachment to the wall. Each bracket includes a leg positioned outwardly from the wall and an end. An upper and a lower bracket are provided for mounting a standard, and a pair of standards are provided for mounting the component. Each standard includes end plates with end flanges extending therefrom. The standard end flanges are adapted for placement between the bracket ends and the wall with the bracket ends captured between the standard faceplate and end flanges. The standards may be mounted on the wall in sets for juxtaposed mounting of standards and components. The lateral positioning of the standards on the brackets is adjustable for accommodating different components.

Abstract: The present invention relates to a printed circuit board and to a method of manufacturing the same. The printed circuit board has a reinforcing panel glued to the surface of a resin board. The resin board is provided with at least one circuit layer and through holes. The reinforcing panel contains a core in a plate form and is made of at least one curved board and a metal board glued at least to one side of the core. The reinforcing panel is provided with resin holes, the resin holes are filled with resin, and a lead wire hole is provided through the center of the filled-in resin. The center line of the through hole and that of the lead wire hole are almost identical. The manufacturing method provides a lead wire hole through the center of each resin filled hole in a reinforcing panel by a drilling device assisted by a hole position designating means.

Abstract: A method of ultrasonically treating a fibrous strand for subsequent use in high speed filament winding operations. The strand, composed of a multiplicity of filaments such as glass or carbon, is initially coated with a silane-type binder which is dried onto the surface of the filaments. The strand is then passed at a high speed through a bath of thermosetting resin, and while submerged in the resin is subjected to ultrasonic energy. The ultrasonic energy increases the rate of interaction of the binder and resin, thereby increasing the wetting rate of the individual filaments. This permits saturation of an individual strand or a group of strands with the resin in a much shorter contact time and guarantees removal of all entrained air in the bundle. At the same time, it provides a more stable resin-fiber bond after curing.

Abstract: An apparatus for cleaning the slots of newly assembled armatures of chips and burrs. The apparatus includes centrally or radially mounted cylinder means and a plurality of radially aligned blades, with suitable linkage means connected threrebetween for moving the blades laterally through the slots upon reciprocal movement of the respective cylinder rod(s) to thereby clean out the slots.

Abstract: An electric motor driven coffee grinder is turned on by manually activating an on/off/start switch when a bag is in position to receive ground coffee under a discharge chute and automatically turned off when the bag is removed. The grinder motor is controlled by both the manual on/off/start switch and by a switch which is actuated by a pivotally mounted lever responsive to the presence and absence of a bag under the discharge chute. This lever is designed to assume a switch-off position when no bag is present and is pivoted to a switch-on position when a bag is present.

Abstract: A water heater having improved efficiency. The water heater includes a tubular member that is mounted in an opening in the side of the tank and extends generally horizontally across the tank. The tubular member defines a combustion chamber and a fuel burner is located within the combustion chamber. The outer end of the tubular member communicates with the atmosphere and air is drawn into the tubular member and mixed with fuel to provide a mixture which is ignited. The waste gases of combustion are discharged from the inner end of the tubular member into a heat exchanger which is located in the tank beneath the tubular member, and the hot waste gases being discharged from the combustion chamber and passing through the heat exchanger transfer heat to the water in the tank. The heat exchanger is connected to a stack and a blower is mounted in the stack downstream of the heat exchanger and serves to draw the waste gases of combustion from the combustion chamber through the heat exchanger to the stack.

Abstract: In electrochemically machining individual oversize blades of an integral bladed gas turbine engine rotor, opposed cathodes are initially offset in an electrolyte chamber relative to a selected machining position with the rotor outside the chamber skewed at an angle relative to the final position of the cathodes in the electrolyte chamber. The rotor and electrolyte chamber are then relatively moved in a vertical direction to position an individual blade to be machined in a workpart machining position in the chamber and concurrently one cathode is moved in a direction toward one side of the blade and the other cathode is moved in two other different directions, one toward the blade from the opposite side of the blade and the other transverse thereto, to position the cathodes in aligned relation on opposite sides of the blade at the machining position with blades adjacent the individual blade to be machined received in pockets in the cathodes without contact.

Abstract: An electrically conductive arbor indexer shaft is coupled to an indexing D.C. motor by an insulator connector and the indexer shaft in an indexed position is tightly gripped by a resilient electrically conductive clamp connected to an electrically conductive support to which a buss is engaged for supplying electrical current to the arbor via the indexer shaft, clamp and support. During the ECM process, a workpart on the arbor is made an anode by current passing through the arbor indexer shaft, clamp, support and buss with the resilient clamp insuring sufficient electrical coupling of the arbor indexer shaft to the other upstream current carrying components.