Abstract: A device for producing a gradual change in power supplied to a load which utilizes at least one gated solid state switching device and a selectable variable timer network connected to the gate electrode and comprising a chargeable capacitor and a switchable resistive network, for controlling a light circuit, for example.

Abstract: The invention relates to an injection mechanism for molding plastics, comprising at least one injection bushing, at least one lower needle valve, which is supplied by the injection bushing with molten plastics and opened by the pressure of the molten plastics during injection, further comprising heating means and cooling means adjacent to the flow path of the plastics, control means for maintaining the plastics at an adjusted temperature, further control means for injecting the molten plastics into at least one mold cavity via a corresponding injection aperture, and for the closing off the mold cavity after finishing the injection, wherein for improving this mechanism, especially for facilitating very small distances between injection openings, only one plunger within a heated distributor block is provided, which actuates several needle valves, situated at different locations within the distributor block, for supplying the molten plastics to the mold cavity via one single injection bushing, an injection nozzl

Abstract: An antigrab clutch assembly for motorcycles and the like comprising drive shaft means, clutch hub means associated with the drive shaft means, throw out assembly means associated with the clutch hub means, a clutch housing, friction clutch disc means, engageable clutch disc means, the friction clutch means mounted on clutch hub means, the engageable clutch disc means mounted on the clutch housing and cooperating with the friction clutch means, means for securing the clutch housing to the drive shaft means, whereby grab is prevented by maintaining the clutch housing from moving with the disc means axially of the drive shaft means when the clutch hub means is moved.

Abstract: A gantry crane comprising a pair of spaced, parallel rectangular side frames each having top and bottom members and front and rear vertical members connected to the top and bottom members, a front cross beam rigidly connected to each of the side frames at the upper front corners thereof, and a rear cross beam pivotally connected to each of the side frames at the upper rear corners thereof, each of the side frames further including diagonal braces, ground engaging drive wheels mounted on the side frames at the lower corners thereof so that as the gantry crane traverses uneven ground, the wheels maintain ground contact as the rear cross beam pivots with respect to the side frames and the front cross beam absorbs the torsional stress.

Abstract: This invention pertains to a delimbing apparatus which is mounted on a vehicle and is constructed to delimb several felled trees as the vehicle moves the delimbing apparatus over the trees. The delimbing apparatus comprises a frame having a plurality of downwardly projecting delimbing arms which are rigidly secured in place by means of support braces welded to the frame and extending partially the length of the delimbing arms. The delimbing arms may additionally be provided with cutting blades to further facilitate the delimbing action.

Abstract: A deposit for a key is returned after the key is deposited in the machine where an element on the key unlocks the coin control mechanism.

Abstract: A tear-off return receipt form for attachment to a mail support surface comprising a base member including a marginal strip and a main strip, a top member including a marginal strip and a main strip, the marginal and main strips each having inside and outside surfaces, the outside main surfaces having printing thereon, the base and top members including the margin and main strips being substantially coextensive with each other, one of the members having adhesive on its inside margin surface, one of the members having adhesive on its inside main surface, the other of the members having a release coat on its inside margin surface cooperating with the adhesive on the other of the members inside margin surface, the inside main surface of one of the members being adhesively bonded to the inside main surface of the other of the members to form a postal return receipt having margin securing means, means on the other of the members to permit its margin strip to be peeled away to expose the adhesive on the one of the

Abstract: A check valve having a plastic cylindrical body having an axial inlet and outlet, longitudinal guide ribs on the inside of the body, a spring member urging a valve ball against the inlet opening, a guide pin inside of the spring member, and a screen member covering the inlet opening.

Abstract: An anchor for use in the post-tensioning of prestressed concrete, including an anchor case having a longitudinally tapering outer wall surface and a tapered longitudinal bore for receiving a chuck comprising wedge segments which are in gripping engagement with a tendon passing therebetween. The anchor case and chuck are approximately the same length, and the anchor case is cold forged with the top end thereof folded inwardly to effect greater thickness at that point, which structure, in combination with a dome-shape thrust plate extending outwardly from the outer periphery of the anchor case proximate the folded portion thereof, contains the hoop forces exerted on the anchor case by the chuck.

Abstract: A multi-battery power supply has a battery adding circuit and a charging circuit for each battery, and a common heat sink bus.

Abstract: An audio frequency ionization ignition system for internal combustion engines which simulates turbulent combustion (diesel combustion) in spark ignited internal combustion engines utilizing standard equipment with minor changes in the wiring harness of a vehicle. This system includes an electronic contact debounce circuit, an audio oscillator, a divide by two frequency divider and AND circuits combined with power amplifiers. This supplies high voltage, sinusoidal pulses for ignition.

Abstract: A cleansing apparatus for test-vessels such as cuvettes or the like comprising a support shaft and three spaced paralleled disks, two of said disks being secured to the shaft and the third disk being rotatably positioned on the shaft, a nozzle secured to the first disk, the second and third disks having apertures thereon for receiving cuvettes, so that a cuvette may be positioned over the nozzle through the apertures in one of the disks, and retained by the rotatable disk so that immersion of the apparatus into a cleansing solution forces a jet of solution through the nozzle for cleansing the cuvette.

Abstract: A nuclear divisional reactor including a reactor core having side and top walls, a heat exchanger substantially surrounding the core, the heat exchanger including a plurality of separate fluid holding and circulating chambers each in contact with a portion of the core, control rod means associated with the core and external of the heat exchanger including control rods and means for moving said control rods, each of the chambers having separate means for delivering and removing fluid therefrom, separate means associated with each of the delivering and removing means for producing useable energy external of the chambers, each of the means for producing useable energy having separate variable capacity energy outputs thereby making available a plurality of individual sources of useable energy of varying degrees.

Abstract: A rotary tool positioning unit for machining workpieces is disclosed having a rotary tool holder and a plurality of slide bearings cooperating with one another in such a manner that the rotary tool holder is capable of independent translational movement in either of two directions perpendicular with respect to one another and capable of independent rotation about either of two axes perpendicular with respect to one another. One of the translational directions is parallel to one of the rotational axes. The unit also includes an eccentric cam shaft cooperating with two slide bearings perpendicular with respect to one another for imparting a reciprocating movement to the tool holder in a direction perpendicular to the longitudinal axis of the tool holder.

Abstract: A noise squelching circuit for an AM radio in which a phase-locked loop extracts a tone signal which gates an audio frequency amplifier. Tone injection can be accomplished either by frequency modulating the intermediate frequency signal or the output of the phase-locked loop's voltage controlled oscillator.

Abstract: A method for continuous azeotropic processing of vegetable and protein material provides for staged processing, separate dehydration, and flash desolventizing.

Abstract: A method and apparatus for the determination of the concentration of certain chemical substances such as glucose, urea, enzymes, etc. in biological solutions such as blood, serum, urine, using a technique of differential pH measurement using two pH electrodes, and measuring pH changes in the solutions after the addition of specific reagents, the concentration being determined according to the formula[sample]=FCAL.times.(.DELTA.pH.sub.c -.DELTA.pH.sub.b -.DELTA.pH.sub.o)wherein [sample] is the concentration of the substance in the sample, FCAL is a calibration factor, .DELTA.pH.sub.c is the measured pH of the reacted sample, .DELTA.pH.sub.b is a pH correction for the reaction initiating compound, and .DELTA.pH.sub.o is a correction for background pH changes.

Abstract: A method and apparatus for grouping of objects such as books or the like to stacking layers for loading onto pallets wherein stacks of equal height are formed from the individual objects, and are conveyed sequentially for forming a stacking row, the length of which corresponds to the transverse dimension of a pallet; at least one of the stacks in a given stacking row is rotated by 90.degree. with respect to the other stacks in the given stacking row, and a gap is produced between the thusly rotated stack and the remainder of the stacks in the stacking row, the stacking row then being pushed onto an intermediate storage table, with subsequently arriving similarly oriented stacking rows being pushed onto the first stacking row to form a tier, and subsequent tiers similarly formed but with differently oriented stacks to provide a staggered or overlapping bond and thus a stable pallet stack.