Abstract: An anti-vibration apparatus for reducing seismic acceleration is disclosed wherein X-axis direction linear motion means are horizontally displaceably mounted on X-axis direction rails installed on a foundation, and mounted on the X-axis direction linear motion means are Y-axis direction rails through Y-axis direction linear motion means or directly, and X- and Y-axis direction tension springs are disposed between the foundation and the X-axis direction rails and between the X-axis direction linear motion means and the machinery mounting platform, whereby the X- and Y-axis direction linear motion means are adapted to support transverse upward as well as downward loads together with the X- and Y-axis direction rails. The machinery mounting platform may additionally pivotally carry thereon another machinery mounting platform through articulated lever mechanisms using the former platform as a support frame.

Abstract: This invention is an improved refrigerant-cycle heat pump that requires neither a defrosting means nor a backup heat source. From widely varying outside environments, it pumps heat to heat living spaces or domestic hot water. Liquid refrigerant flows from a receiver through expansion valves into an outside evaporator consisting of a segmented array of plates where heat is absorbed from the atmosphere to evaporate the refrigerant. The resultant gas is compressed by a motor-driven compressor, gives up heat in a condenser, becomes liquid, and returns to the receiver. The segmented evaporator enables the self-governing heat pump system to choose the proper magnitude of evaporator area, in response to its determination of compressor suction pressure or motor power demand, so as to provide a steady refrigerant flow to the compressor and thereby maintain optimum heat pumping despite extreme excursions of outside temperature.

Abstract: A safety device for a track stretcher of a tracked vehicle is disclosed. The safety device includes two half rings (14,15) held in a groove (16) of the tension rod (17) of the tracked vehicle by an elastic ring (20). The safety device prevents separation of the tension rod (17) from a support (2) connected to the roller wheel (1) upon failure of the primary thrust controlling stop device which includes a nut (22) screwed on the threaded end (21) of the tension rod (17).

Abstract: A molten metals filter apparatus having a hollow frusto-conical strainer, including an inlet port and a plurality of slot apertures having a uniform width for selectively restraining particulant impurities in molten metals.

Abstract: A telephone answering machine produces a prerecorded reply message in response to detection of a calling signal from a caller and thereafter records a message of a caller in response to completion of the reproduction of the reply message. The telephone answering machine includes first and second tape drive mechanism. The first tape drive mechanism is used for running a first magnetic tape on which the reply message of a called party is prerecorded. The second tape drive mechanism is used for running a second magnetic tape on which a message of a caller is to be recorded. The first and second tape drive mechanisms are controlled by a single common operation control mechanism. The operation control mechanism includes a movable head plate on which first and second pinch-rollers of the tape drive mechanisms are mounted, and a cam gear which has first and second drive cam grooves to control the movement of the head plate in two different directions.

Abstract: A process for forming a prestressed anchorage by drawing a steel sleeve over a metal core of elongate shape having a substantially round section, consisting in using a sleeve having an inner diameter substantially equal to the outer diameter of the metal core, in forming a grooved portion or indentations in the inner cylindrical surface of the sleeve, in subjecting the inner cylindrical surface of the sleeve and its grooving to surface heat treatment adapted to increase the hardness thereof and to give thereto a value greater than that of the metal core, by causing the tempering depth to increase from one end to the other of the sleeve and in anchoring the sleeve on the metal core, in a way known per se, by drawing the sleeve through a draw-plate.

Abstract: A directional electrostatic dissipating fabric and method of making such fabric constructed of a woven or knitted base fabric having an integrally woven or knitted grid structure which is raised above only one surface of the base fabric forming a fabric with a raised grid on one side and a smooth or substantially smooth grid on the other side thereby resulting in increased, directional electrostatic dissipation performance from the side having the raised grid. The grid is formed from an electroconductive yarn plied to a carrier yarn which is then integrally woven or knitted into the fabric in the warp direction, the fill direction or both, thereby producing a fabric which exhibits the rapid, yet controlled, directional dissipation of static electricity into the air.

Abstract: A slipper including an upper defining a cover for substantially encompassing a foot which is formed at least partially of elastomeric material, and a sole divided into discrete, spaced fore and aft sections secured to a base portion of the cover.

Abstract: Resonators magnetically tunable over a broad rf frequency range capable of operation at relatively low rf frequencies (VHF band) are disclosed as well as tunable devices based on them. The resonators comprise a resonator body made of a ferrimagnetic single-crystal material which is generally flat, and is generally rotationally symmetrical with respect to an axis of rotation, for example disk-like or oblate spheroidal-like. The axis of rotation of the resonator body is oriented with respect to the crystalline lattice in a particular way depending on the anisotropy. The same orientation is required for the dc field whose magnitude determines the resonance frequency. The resonators are particularly useful in broadband tunable rf and microwave filters and oscillators, and can be tuned by means of the dc field to resonate from about 50 MHz to several GHz.

Abstract: A device for producing decorative patterns on clothing includes a variable speed motor connected to a clothing carrier which is adapted to hold and rotate clothing in response to activation of the motor within a covered housing equipped with self-closing ports through which paint can be applied to the rotating clothing while the operator is protected from paint being inadvertently thrown off of the rotating clothing.

Abstract: A combination metal and knitted wire mesh gasket includes a gasket body formed of metal and having interconnected first and second portions. A layer of knitted wire mesh having a recess extending along the internal circumference of a first surface thereof receives the first portion of the metal gasket body. The second surface of the knitted wire mesh engages the second portion of the metal gasket body such that the first portion of the metal gasket body and the first surface of the knitted wire mesh form the first surface of the gasket. The second surface of the gasket is formed by the second portion of the metal gasket body.

Abstract: A device is disclosed which is mounted to a door over an independently mounted lock to prevent separation of the lock from the door. In one embodiment, the device comprises an interior plate having a recessed portion and flange portions, which is fastened to the interior of the door by bolts passing through the door with the recessed portion covering the lock. The plate holds the lock against the interior of the door and prevents its separation from the door when forces are applied to the lock from the exterior of the door via the lock cylinder or directly to the lock after the cylinder has been removed. In another embodiment, the device also comprises an exterior plate mounted to the exterior of the door covering the heads of the bolts used to mount the interior plate to the door.

Abstract: A toy vehicle includes a transmission that automatically shifts from high speed to low speed when a load is placed on the rear wheels, due to rough terrain or otherwise, in either the forward or reverse direction. An alternate embodiment of the invention includes a second clutch mechanism that simultaneously engages and drives a second set of wheels when the transmission shifts from high to low speed.

Abstract: A positional transducer includes a nonconductive plate having four ferrite tube inductors mounted at preselected locations in the plate. Two interconnected permanent magnets are mounted on either side of the plate with opposite poles facing the plate for magnetic interaction. Manual movement of the permanent magnets varies the impedance of the inductors to indicate the relative position of the magnets to the inductors.

Abstract: An ejector latch which attaches to electrical circuit boards to be stacked in a cabinet and which secures the circuit boards in a stack so that the circuit boards are maintained in electrical interconnection. The ejector latch allows one circuit board or a number of circuit boards to be easily removed from the stack simultaneously.

Abstract: In a method of stamping by means of hot stamping presses decorations on articles of various types, there is placed in contact with the surface of the article to be decorated a matrix comprising a plate with perforations producing the decorative design to be made on the surface of the article to be decorated. On the surface of the matrix opposite that in contact with the article there is disposed a hot stamping foil. A patrix preferably consisting of a plate of resilient deformable material is used to bring by means of the operation of the hot stamping press, the hot stamping foil into contact with the surface of the article to be decorated through the perforations of the matrix. The patrix can also comprise of a plate of any material having raised areas, either of the same material as the plate or of a different material, adapted to penetrate the perforations of the matrix.

Abstract: An amphibious toy vehicle powered by a water turbine and 4 drive wheels adapted to operate in a forward and backward direction on land and in a forward straight and circular direction in water. A single battery operated motor coupled to a transmission simultaneously drives both the 4 drive wheels and the water turbine. Power shafts from the transmission to the water turbine and the drive wheels are contained in isolated vertical risers extending above the water line so that the vehicle housing cavity containing the battery source, motor and transmission remain water-free without the use of seals.