Abstract: A centrifugal type cleaner or separator, the separating chamber of which is provided, in its interior, with a sudden and sharp reduction of its cross-sectional area by means at the outer periphery of which is an escape passage for the deflected portion of a vortex type flow. The arrangement provides that as a slurry is moved through the chamber in a vortex type flow, the outer portion of the flow including the larger and lighter solids in the slurry, it is intended to reject, will be deflected to the escape passage while the remaining heavy and small solids will find an exit through the underflow nozzle of the cleaner. In the preferred embodiment here illustrated the escape passage is designed to maintain a vortex type flow pattern for the escaping material.

Abstract: Bending and forming apparatus comprises an anvil adapted for use in a press in conjunction with a die connected to an opposed portion of the press, to form and bend material interposed therebetween as the press closes during its cyclic operation. The anvil includes a plurality of elements each of which is normally fixed to form an extension of another by an embodied locking device. In its extended condition the anvil is a rigid unitized structure of substantially fixed length. The locking device is constructed and arranged to release to provide the elements as hard tooling of reduced length as bending and forming of the material worked thereby proceeds, to set the bent and formed configuration of the material worked. A trigger device is included for triggering the release of the locking device to provide for reduction in length of the anvil. The bending and forming apparatus provides hard tooling in both its original condition and when reduced in length.

Abstract: A drive motor for a flexible drive shaft of an internal vibrator or some other device potentially the source of an electrical shock features a cylindrical structure embodying a field assembly which slip fits in a cylindrical shell which embodies positioning means to which the field assembly and electrically connected commutator brush means may be releasably fixed. Slip fit as a unit into this shell is an armature assembly including a commutator means fixedly mounted directly to and about shaft means intermediate its ends. One end portion of the shaft means provides an electrically non-conductive coupling device for drivingly relating the shaft means to a device which must be powered. The shaft means has affixed thereto the inner races of bearing means to either end of the armature assembly the outer races of which are in direct contact with and protected by electrically non-conductive material forming part of end covers for said cylindrical shell.

Abstract: A device for use in automotive vehicles for alerting the driver to improper and/or unsafe driving patterns comprising means defining a normally open circuit and means for automatic closure of said circuit in response to a relatively abrupt change in a driving pattern, said circuit embodying therein a signalling means energized upon the closure of said circuit.

Abstract: A plate-like element for insertion in a bore or recess to provide a fixing or bearing surface for a shaft or a shaft-like portion of an element includes a laterally centered section having the configuration of a short longitudinally oriented section of a cylindrical wall structure. This laterally centered section, which is correspondingly bowed, has wing-like plate portions at its remote lateral extremities which are co-planar. The remote lateral extremities of the wing-like portions are thinned at their leading edges, having regard for the direction of application of the plate-like element in use. The bowed portion is distinguished at its outer convex surface by an elongated, laterally centered, projection having essentially parallel sides the outermost surface portion of which is flatly arcuate in transverse cross-section and the leading end of which is also arcuate in configuration.

Abstract: A work manipulator particularly advantageous for use in welding, cutting and like operations comprises a plurality of functionally related arms, at least a portion of said arms being respectively mounted for rotation in different planes. Means are provided for rotating said arms simultaneously or selectively as needs and to the extent required. Further means coupled to at least a portion of said arms provide as between such means and the arm to which such means is coupled a defined path of movement of one relative the other. With work holder means based on at least a portion of said arms, said arms and said coupled means are selectively or simultaneously operable to manipulate work to continuously present and move the same relative to a torch or like device at the attitude required to effect a complete continuous weld or cut with or without a change in position of the torch.

Abstract: A portable heater comprising a housing composed of separate parts including a lower part having a bottom and side wall portions defining a trough, components of said heater including a combustion chamber assembly and a support, said support positioning in a sense transverse to said lower part, said combustion chamber assembly and said support having in connection therewith means for seating to and interfitting with means in connection with said side wall portions of said lower part in a drop fit thereof to said lower part, said support mounting thereon a motor and a fan blade assembly for powering said heater and developing therein a pressured flow of air to and about said combustion chamber assembly and means for delivering fuel and igniting the fuel in delivery thereof to the combustion chamber of said assembly, said interfitting means being constructed and arranged to position said combustion chamber assembly and said support and said fan blade assembly in a substantially direct alignment on and within sai

Abstract: The invention provides material handling apparatus in the form of a lift arm assembly integratable with or releasably applicable to farm tractors or like relatively small, lightweight vehicles for front end loading and leveling having extended outreach capabilities. An extensible carriage which mounts stably and for guided reciprocable movement on the lift arms carries a material engaging device so interrelated as to enable an advantageous application of forces therethrough, both to break material free from a mass at ground level and to reorient the placement of material at elevated levels. In certain embodiments the material engaging device is tiltable in response and/or correspondence with movements of the carriage. In a preferred from of embodiment of the invention, a guided movement of the material engaging device and the outreach and tilting thereof is sensitively controlled by separate connectors extending thereto from both the lift arms and the carriage.

Abstract: A tray particularly advantageous for patient feeding in hospitals and like applications including a body having means defining therein a sealed chamber containing a chemical compound or mixture which is one of a group including magnesium nitrate; acetamide; benzoic acid; strontium bromide; napthalene; a mixture of urea and benzoic acid wherein the ratio of benzoic acid to urea is substantially 2 to 1 by weight; a mixture of benzoic acid and benzomide in proportion wherein they are substantially equal by weight; and aluminum potassium sulfate, said one chemical compound or mixture in said chamber embodying chemically combined water in an amount insufficient to provide a total crystallization thereof in the solid state, said one compound or mixture as sealed in said body being repeatedly reversible from a solid to a liquid state and back to a solid state and being distinguished by a transition or phase change temperature which is substantially above 32.degree. F. and below 212.degree. F.

Abstract: A battery operated, personal, non-lethal defensive weapon capable of projecting a high intensity beam of light and, a fraction of a second thereafter, a highly concentrated spray of fluid capable of temporarily disabling an attacker features a unique structure for installing a battery and placing it in a circuit for energizing the lamp which produces the high intensity beam of light and also includes simple and effective apparatus for closing the circuit and immediately thereafter producing the spray facilitating its rapid fire use. The arrangement of the circuit closing contacts enables a rapid fire use of the weapon. In installing the battery according to a preferred embodiment, a thin board or plate of insulating material is provided to one face of which are secured strips of conductive material having free ends bent about edges of the board to project to and from the opposite face of the board.

Abstract: The invention relates to an apparatus for packaging tape cassettes, one at a time, from a conveyor. The apparatus includes a loading device for moving the cassettes along a straight line path of travel from one end of said apparatus to the other end thereof, a vacuum suction head for removing inserts (one at a time) from a magazine and moving the inserts into the path of travel of the cassettes in a partially folded condition so that each cassette enters an insert. The apparatus also includes a further suction head for removing boxes (one at a time) from a second magazine and for positioning the boxes in the path of travel of the cassettes and inserts, arms for retaining the boxes in the open position for receiving the cassettes and inserts, and a closing device biased towards the path of travel for closing each box with a cassette and insert therein.

Abstract: Apparatus for laying conduit, cable and the like, most advantageously in a trench, features a hopper embodied in a frame adapted to be placed within a trench and loaded with gravel or other embedment material. The construction and placement of the hopper provides for discharge therefrom of the embedment material as the frame is moved the length of the trench, the discharge being to the bottom and at one end of the frame and to a level metered by a readily adjustable control blade. A feed tube extended through the frame and the hopper, to position within the body of the embedment material introduced therein, is provided with a mount enabling its substantially universal adjustment. This feed tube serves to guide and discharge the conduit, cable or the like to be laid simultaneously with the discharge of the embedment material and within and at a predetermined level with respect thereto.

Abstract: A sanding, polishing and buffing wheel comprises a housing having a plurality of longitudinally extending, circumferentially spaced, slots. Each slot is differentially spaced with respect to the adjacent leading and trailing slots, having regard for the direction of wheel rotation in use. Threaded through each of a plurality of widely spaced slots in the end of a separate strip of abrasively surfaced material, the remainder of the extended length of which is anchored to a non-radial fin on a spool and wrapped around the spool in the initial loading thereof within the housing. The spool is normally fixed and can, when necessary, be released and rotated relative to the housing to loosen the wrapping of the strip material and then fixed. Thereafter, on rotation of the wheel for application to a work piece, the outer portions of the strips will automatically feed out through the respective slots to effect a desired length of their projected end portions.

Abstract: For use in combination with a die plate having through bores, matrix means for mounting to the die plate including die means for cooperation with tools of a die assembly to function therewith to work material fed therebetween, one end of said matrix means being constituted by a matrix segment the external dimension of which is greater than that of the through bores in the die plate, the matrix means also including a mounting segment dimensioned for a press fit within a through bore of the die plate, providing thereby that the outer peripheral portion of the matrix segment will seat on the die plate. The matrix means has a passage therethrough at least a defined portion of the length of which within the matrix segment has a uniform cross sectional area. The operating surface portion of said matrix means, provided by said matrix segment, positions outermost from the die plate to which it is applied to define a limited matrix surface displaced from the die plate.

Abstract: A drive coupling, as between an engine and a pump, facilitating assembly of the pump to the engine and preparation of the engine-pump combination for operation. Elements of the coupling include a relatively projecting externally splined shaft associated with the pump and an internally splined hub associated with the engine, the two being brought to a telescoping, interfitting relation as an inherent part of an action properly relating the pump to the engine. A shaft support assembly provides for a temporary fixing of the shaft against off center movements while it is being introduced into the hub. The hub is made a part of a separable coupling plate assembly fastened directly to the engine flywheel preparatory to a coupling of the pump to the engine. The splined connection within the hub is lubricated according to a concept substantially precluding loss of lubricant during operation of the drive coupling but providing for escape of lubricant supplied in excess of that required.