Abstract: A power translation and rotation apparatus for an air float fixture support system of the type including a table having an upwardly facing upper surface adapted for supporting a workpiece fixture thereon, and a pressurized fluid system for supplying a cushion of pressurized air or other fluid between the surface of the table and the workpiece fixture so as to floatingly support the fixture thereon for virtually friction-free movement. The power translation and rotation apparatus generally comprises a single pin translatably and rotatably mounted within the table and having a portion thereof extending upwardly from the table surface, and motor-gear or hydraulic direct drive arrangements within the table for translating and rotating the pin about respective axes normal to the upper surface of the table. The pin is suitably shaped so that it is keyed to an opening in the lower surface of the fixture thereby causing the fluid supported fixture to be translated and rotated in unison with the pin.

Abstract: A machine tool apparatus having a bifurcated column structure comprising spaced apart columns which enclose and slidably secure the mounting end of an arm, the opposite end of which receives a rotating spindle adapted to engage and rotate a variety of machining tools. The bifurcated column structure has three primary ways having their guiding surfaces arranged generally in one plane, and the third having its guiding surface in a plane orthogonally related to the plane of the first ways. The column structure also includes three secondary ways positioned in opposed relation to the respective primary ways. Antifriction bearings are connected to the mounting end of the arm in opposed relation to the three primary and three secondary ways and serve to guide the arm for vertical movement within the column structure.

Abstract: A rotary magnet device comprises at least two circular arrays of wedge-shaped magnetized elements which are angularly adjustable about their respective radial axes. The elements of each array are arranged in surface-to-surface facing relationship with surfaces of one polarity facing surfaces of opposite polarity, thereby creating a magnetic field about a respective array. Rotary motion is created when the magnetic fields of the respective arrays are brought together to interact. The rate and direction of and torque created by rotation can be selectively varied by angularly adjusting the magnetized elements relative to their radial axes.

Abstract: A striping apparatus for marking athletic fields and other surfaces comprises a wheeled platform adapted to be propelled by a prime mover and having thereon a tank for containing fluid, a nozzle assembly for spraying the marking fluid on a surface, and a pumping assembly for delivering the marking fluid under selectively variable pressures to the nozzle assembly. The nozzle assembly is adjustably positioned angularly and in elevation relative to the surface to be sprayed, and the pumping assembly is remotely controlled by a switch located on the prime mover. To mark designs, logos, numerals, and the like, an auxiliary hand-held, manually operated hose and nozzle are provided to allow the operator to mark the required figure.

Abstract: A method of mounting a hard, wear-resistant insert for use as a core tube, wire drawing die, and the like in which a cylindrical metal casing is provided with opposite front and back sides, the casing having a cylindrical cavity formed in the front side with a flat bottom spaced from the back side. A cylindrical plug is provided having top and bottom ends, the plug being proportioned to have a close fit in the casing cavity. The casing-plug assembly has a reference position with the casing cavity bottom facing upwardly and the plug bottom end facing downwardly. Prior to insertion of the plug in the cavity, either the plug or the casing is inverted from its reference position. A hard insert element is centered with respect to either the inverted end of the plug bottom or the casing cavity bottom and is adhered thereto. Either the plug or the casing is again inverted to the reference position, and the plug is inserted in the casing cavity with the bottom end and insert element facing the cavity bottom.

Abstract: An electronic musical instrument wherein purely digital techniques are utilized for generating the basic waveform train and also keying the waveform train so as to have the customary keying envelope with attack, sustain and decay portions. The wavetrain is a cyclically repeated series of four-term Blackman-Harris window functions, wherein there are preferably eight such functions in each series. A plurality of individual keying envelopes are generated by a piecewise linear technique, and these envelopes are assigned respectively to the waveforms in the series so that the relative amplitudes of the waveforms can change with time over the life of the tone. This results in modulating with time the harmonic content of the tone.

Abstract: A coil inserting blade array has a first position in which the distal ends of a group of adjacent blades extend into the coil form recess with the two gaps at the sides of the group exposed to the angled section-shaping portions so that a coil wound on coil form may be transferred to the array with angled sections extending through the two gaps and one end section disposed within the array. The array has a second position with the distal ends of the blades extending into the bore of the core and engaging teeth thereof, and with the two gaps communicating with two winding slots, the two gaps defining a first angle therebetween. The angled section-shaping portions of coil form define a second angle therebetween slightly smaller than the first angle and having a center spaced outwardly from the centerline of the array on the side thereof remote from the one end section in the first position of the array.

Abstract: A method for manufacturing a device for the magnetic treatment of fluids including water, liquid and gaseous fuels, propane, oil and the like. An elongate inner tubular casing having a magnet therein is supported within an intermediate casing made of a ferromagnetic material, and a pair of end fittings are connected to opposite ends of the intermediate casing and serve to center the inner casing therein. The end fittings each have a tapered passage therein, and as they are threaded on the ends of the intermediate casing, the ends of the inner casing are guided into the tapered passages and are gradually deformed inwardly thereby so that the tapered passages tightly seat against the ends of the inner casing to prevent radial and axial movement of the inner casing relative to the end fittings. This results in a self adjusting support of the inner casing and avoids crimping or other deformation which may result if the end fittings are threaded too far.

Abstract: An electronic keyboard musical instrument comprising a multiplexed keyboard and a programmable microcomputer interfaced between the keyboard and a system of capture tone generators. The loading circuitry for the microcomputer, which is interposed between it and the keyboard multiplexer output, monitors the serial data stream and transmits only key change information to the microcomputer. The microcomputer controls the assignment and deassignment of tone generators for the accompaniment, solo and pedal manuals based on the key change information transmitted to it. Fill note information is taken from the captured accompaniment keyers and compared with the series of binary words for the current scan of the manuals in order to produce a keydown pulse when there is identity of pitch between the captured accompaniment tone generators and the scanning of the solo manual.

Abstract: The invention provides a screening arrangement including a screen deck constituted by a non-stretchable, flexible screen cloth material defining a feed end and a discharge end. The feed end and discharge end are secured to mounting formations associated with a frame and the association is such that in use the screen deck may be reciprocated between a taut state and a slack state. The screen deck is located at an angle to the horizontal sloping downwardly from the feed end to the discharge end. The arrangement of the present invention has a high resistance against blinding of the screen deck.

Abstract: A percussion generator for an electronic musical instrument, such as an electronic organ, wherein the percussion generator is responsive to a time division multiplexed serial data stream produced by scanning the keys of the keyboard. A control pulse is produced each time that a new key on the keyboard is depressed, and this pulse, which has a duration equal to or greater than a plurality of scans of the keyboard, is employed to produce a burst of keydown pulses in the data stream. The percussion generator is responsive to the serial data stream and each of the aforementioned control pulses to produce keydown pulses in the appropriate time slots of the data stream in a plurality of successive sequences thereof and then terminate the keydown pulses even though the associated keys remain depressed.

Abstract: A system for diagnosing fault conditions in an automatic or semiautomatic machines, such as injection molding machines. The diagnostic system comprises a display panel having a plurality of lights or other visual indicators grouped in sets for the respective subsequences of the machine cycle, and if no fault conditions occur and the machine cycles properly, the sets of lights will be energized in succession so that the operator is continuously apprised of the condition of the machine. If a fault condition should occur, one or more of the lights in the set corresponding to the subsequence that the machine is presently implementing will not be energized, and the pattern of energized lights in that set is coded to the particular fault condition that has occurred. By correlating the code with a fault code listing, the operator can quickly identify the location and nature of the malfunction.

Abstract: In an amphibious vehicle having driven wheels for movement along dry surfaces and a driving unit for movement through fluids, the improvement comprising at least one of the driven wheels being provided with supports and a positioning mechanism for propeller blades, which, upon rotation of the wheel, generate motion through the fluid according to the principle of cycloidal propellers. The supports for the propeller blades are arranged and constructed such that the propeller blades protrude laterally out of the wheel rim, whereby the axis of rotation of the propeller blades are inclined a small, acute angle towards the axis of the wheels.