Abstract: A cabinet having an interior compartment for storing snow skis and poles vertically in an orderly arrangement within the compartment. At least one interior sidewall of the compartment is formed by a molded fiberglass half-section having specially formed and positioned receptacles for storing ski boots. A drip pan is mounted in a removable manner at the bottom of the compartment. The skis are mounted on a ski rack which is movable in a telescoping manner to the exterior of the cabinet to make loading and unloading of the skis easier and further to improve the access to the boots in their stored position. The rack has mounted on it specialized ski supports for holding the skis in matched pairs in a vertical position and hanger rods are provided to mount the ski poles, likewise in a vertical position.

Abstract: A hand tool particularly useful for concrete work and for providing the combined operations of raking, leveling and setting grade. The tool includes a base plate, a vertically upstanding handle and an adjustable sight collar slidably mounted on the handle with a sight groove and adjustable thumb screw to allow for accurate grade checking.

Abstract: A vehicle transport trailer including a low bed trailer capable of transporting a load of eight large station wagons and cars, a load of six pick-up trucks, a load of nine small cars, eight mini pick-up trucks, and a broad variety of mixed loads of pick-up trucks, vans, large cars and small cars. The vehicle transport trailer relates to a load of automotive vehicles which are carried entirely within the limits and confines of the self-contained trailer structure without requiring storage of any new vehicle on or above the tractor used to draw the trailer. The several embodiments of the invention are made possible by particular specialized track and track elevating mechanism constructions, and in some cases by a particular orientation of loaded and carried vehicles with a loading sequence related to their relative positions on the trailer.

Abstract: An engine of the air-cooled, super-charged type which includes a stationary piston, a cylinder movable relative to the piston and operable in a first position to provide a compression chamber between adjoining ends of the cylinder and piston. In a second position, the compression chamber is opened to provide purging air flow from a compressor stage. A cooling air flow is provided about the surfaces of the cylinder and piston in both positions of the cylinder and during its travel between those positions.In a different embodiment of the engine, the internal combustion portion of the engine just described above is combined with a gas turbine stage. Upon firing of the fuel in the compression chamber and the subsequent opening of the chamber, the flow of hot gases is applied to provide a further rotative force to the turbine wheel.

Abstract: A cabinet having an interior compartment for storing snow skis and poles vertically in an orderly arrangement within the compartment. At least one interior sidewall of the compartment is formed by a molded fiberglass half-section having specially formed and positioned receptacles for storing ski boots. A drip pan is mounted in a removable manner at the bottom of the compartment. The skis are mounted on a ski rack which is movable in a telescoping manner to the exterior of the cabinet to make loading and unloading of the skis easier and further to improve the access to the boots in their stored position. The rack has mounted on it specialized ski supports for holding the skis in matched pairs in a vertical position and hanger rods are provided to mount the skis poles, likewise in a vertical position.

Abstract: An anti-rattle, self-adjusting fastening and holding device for retaining elongated objects of a broad range of different cross-sectional sizes such as wires, cables, tubes, rods and the like. The device includes a plurality of inverse bends to allow retention of the objects over such broad range of sizes.

Abstract: A wire feed protection system for an electrical discharge machining apparatus and machine tool. The workpiece is supported for movement along two coordinate axes in the "X" and "Y" direction through electrically controlled stepping motors in a manner which is well known to the art. The electrode is of a wire or band configuration and is so supported, guided, and driven that the cutting portion of the electrode which is aligned with the workpiece before and during cutting remains properly oriented and travels without bend or distortion in its path. When the wire breaks, bows or otherwise is caused to lose tension, a switch is operated to interrupt machining power pulses being supplied to the machining gap. For this purpose, a switch is located at one or more critical and predetermined locations in the wire electrode path, with the switch actuator in each case in engagement with the wire during transversal.

Abstract: A system for controlling an electrical discharge machining apparatus in which there is an electronic output switch connected between a power source and an electrical discharge machining gap for providing to the gap machining power pulses of predetermined on-off time. The system further includes a current limiting stage for limiting the peak current provided to the gap at certain critical combinations of on-off time ratios so that possibility of gap short circuiting is substantially eliminated. This system further includes a programmable computer operable to receive a plurality of operator provided and memory stored data inputs, including one for controlling pulse on-time and the other as a current limiting signal for the current limiting stage. The system further includes a reference signal and a signal network connected to the gap for providing a feed-back of a gap voltage signal.

Abstract: A power supply circuit particularly useful in a multiple gap or a multiple electrode system in which multiple electrodes and a common workpiece or multiple electrodes and a like number of workpieces are selectively connected in circuit with a common DC source power supply circuit. A switching system is further provided for reversing the polarity of electrode relative to workpiece. A power supply circuit itself incorporates a specialized push-pull drive stage effective to drive the output stages in either polarity setting in such manner as to allow for negligible noise in the system. The drive system is one which generates triggering pulses effective to switch the output transistor bank in either polarity very rapidly and independently of the number of output leads which may be included.

Abstract: Driver apparatus for precisely locating and driving nails or other similar pointed fasteners. Included is a base for locating the driver on the workpiece itself including a V slot entrance for locating the driver in driving relationship to a nail which may be already prelocated on the workpiece. The apparatus includes as its basic parts a nail driver, a holder including the base portion and a spacer which is interchangeably fixed to the lower contact end of the nail driver for presetting with precision the depth to which the nail is to be driven.

Abstract: An engine which includes a combustion chamber and a work function chamber enclosing the combustion chamber. A burner means is located in the combustion chamber for combustion. A rotatable turbine wheel is further mounted in an inlet of the work function chamber with one side of the blades in communication with the ambient atmosphere and the other side in communication with the interior of the work function chamber. The products of combustion are rapidly cooled and continuously removed from the combustion chamber by an exhaust means of the venturi type. This serves to create a pressure differential and provide a continuous stream of high velocity airflow against and through the blades of the turbine, through the work function chamber and out through the exhaust means. In this manner, a rapid rotative movement is provided for the turbine wheel and power output is taken from it and from the output shaft on which it is mounted.

Abstract: A system for controlling the cutting of a workpiece with a wire electrode. The system provides for inclining the electrode wire in the path of traversal in opposition to the electrode such that a predetermined incline or taper is given to the workpiece during cutting. This is accomplished with precision control and sizing by providing an eccentric device positioned between a pair of orthogonal rollers, each spaced from opposing surfaces of the workpiece, so that a conical cutting path is described with respect to the electrode wire as it traverses in proximity to the workpiece during cutting.

Abstract: The hot air from a primary combustion chamber is passed through a specialized heat exchange enclosure unit which contains a plurality of spaced, substantially vertically oriented conduits having their upper and lower ends in communication with ambient air. The enclosure receives heated air from the combustion chamber at one side and exhausts smoke and depleted gases at the other side.

Abstract: A special method of credit card construction is provided with the credit card precoded in binary code representing several digits and with a locator indicator to insure that the card is correctly positioned when inserted in the console or read-out station. The card coding includes the method of arranging high dielectric constant spots or discs and low dielectric constant spots or discs arranged in several bit groupings related to a plurality of identification digits. In one embodiment of the cards, which are preferably of the plastic material type, opaque conductive plastic inserts may additionally be included over and above the first mentioned discs so that the discs, their location and code arrangement cannot be readily ascertained.

Abstract: A special credit card arrangement and construction is employed with the credit card precoded in binary code representing several digits and with a locator indicator to insure that the card is correctly positioned when inserted in the console or readout station. The card coding includes an arrangement of high dielectric constant spots or discs and low dielectric constant spots or discs arranged in several bit groupings related to a plurality of identification digits. In one embodiment of the cards, which are preferably of the plastic material type, opaque conductive plastic inserts may additionally be included over and above the first mentioned discs so that the discs, their location and code arrangement cannot be readily ascertained.

Abstract: A wire feed system for an electrical discharge machining apparatus and machine tool. The workpiece is supported for movement along two coordinate axes in the X- and Y-direction through electrically controlled stepping motors in a manner which is well known to the art. The electrode is of a wire or band configuration and is so supported, guided, and driven that the cutting portion of the electrode which is aligned with the workpiece before and during cutting remains properly oriented and travels without bend or distortion in its path. The improvements in the support and drive mechanism for the wire electrode include a particular arrangement of driving and driven rollers for providing a constant pulling force on the wire and a set of orthogonally oriented guide rollers for holding the wire electrode in a predetermined path proximate the workpiece.

Abstract: A locking device for doors and windows which are disposed in a jamb and are provided with hinges having an exposed removable pin, the device comprising a pair of plates each having an angled end portion, one of the plates being mounted on the back of the door or window proximate each hinge, and the other plate being mounted on the jamb with its angled end portion projecting behind the angled end portion of the plate mounted on the back of the door or window when the door or window is in a closed position. Although the hinge pins may be removed, the door or window is prevented from being pryed away from the jamb by the interfering angled end portions of the plates.

Abstract: The system includes a pair of stepping motors for controlling relative movement of the wire electrode relative to the workpiece with the velocity of movement being controlled as a function of gap voltage. For this purpose the system includes a voltage controlled oscillator having its input coupled to the machining gap and its output interconnected with the drive circuits for the two stepping motors. The system further includes a divider stage which becomes operable in the system responsive to drop of voltage indicating gap short circuit condition so that a drastically reduced number of stepping pulses are provided to the motors throughout the duration of the gap short circuit condition. After removal of the gap short circuit condition, an increase in voltage allows changeover through several different gating stages to again return the output of the voltage controlled oscillator to its normal frequency range so that the feed of the electrode relative to the workpiece is again continued.

Abstract: A portable filter enclosure is connected to the exhaust outlet for a clothes dryer. The enclosure includes a multiple stage successive filter screen arrangement for removing entrained particles or lint from the air stream from the dryer. The enclosure is coupled through a flexible coupling to the exhaust outlet of the dryer to permit the exhausted heat to be directed at will to any part of the room or rooms near the dryer. Further included is a louvered arrangement in the outlet of the enclosure which permits further adjustment of the air stream. The outlet of the enclosure has a shape which is adapted to allow for connection of a hand-held drying tool or the like which may then be connected to utilize the output of the warm air from the dryer.