Abstract: A mechanism for mounting a free arm sewing machine in a work cabinet such that the machine is selectively supported in an upper work position wherein the free arm is positioned above the work surface of the cabinet, a lower work position wherein the free arm is substantially flush with the cabinet work surface, and a storage position wherein the machine is disposed completely beneath the work surface in a space efficient manner. The assembly comprises a base or platform to which the machine is mounted, a rear pivot arm rotatably secured to the platform and to the cabinet, a front pivot arm also pivotally secured to the platform and to the cabinet, and a pair of stops mounted to the cabinet and positioned within the vertical planes of rotation of the front pivot arms so that the front pivot arm and platform are supported against gravity in the lower use position. The stops include cam surfaces which enable the sides of the front pivot arm to ride over them when the machine is raised from the storage position.

Abstract: A variable filter circuit, especially for synthesizing and shaping tone signals, in which a variable light source is provided which influences light sensitive resistor elements in the filter circuit. The variable circuit, by the use of selector switches, can provide different musical features, such as muted voices, percussion, brass, woodwind and the like, all of which will enhance, for example, existing organ voicing while it is, furthermore, possible to obtain the effect of playing a solo instrument together with organ voicing.

Abstract: A covering hood for a record player or the like having a stroboscopic lamp mounted on the inside thereof and including a tilt actuated switch for activating the lamp upon raising the hood. The connecting lead for the lamp is disposed within an elongated cable channel secured to or integral with the hood. If desired, the lamp may be supported by means of a gooseneck having a suction cup on one end adapted to grip the surface of the hood.

Abstract: A record player hood having a pair of raised strips thereon and a pair of stops projecting upwardly from the strips near the side about which the hood pivots so as to prevent record jackets from sliding off the hood when it is raised. A channel is formed in the hood underneath one of the strips and serves to house the electrical cable for a lamp which is mounted to the hood.

Abstract: A feeding device for feeding goods or materials of the kind having several layers and/or having a tendency to separate into layers into a processing machine in a direction generally parallel with those layers, for example, for feeding pulp bales into a disintegrating machine comprising a roller conveyor for displaceably supporting the goods and a driving device to engage the goods and displace those goods along the roller conveyor in order to force the goods into the processing machine wherein the driving device includes a pusher drivable along the roller conveyor which pusher is adapted to engage with substantially the entire rear or trailing surface of the goods for forcing the goods into the processing machine while substantially uniformly acting on all of the layers of the goods. The pusher is mounted on a carriage which is connected to a drive chain by means of a pin.

Abstract: A saw guard, especially for preventing splinters and the like for being thrown out from a saw, in which a flexible, strong, wear resistant material, such as belting, is cut into strips and the strips are connected to a housing which covers the saw from above so that a row of strips in side by side relation are in front of the saw while a row of strips arranged in parallel spaced aligned relation extend along at least one side of the saw. The strips along the side of the saw and being spaced apart permit free circulation of air through the sawing region to remove sawdust and the like therefrom but are effective in stopping splinters and the like from being thrown off from the saw because the arrangement of the strips are in parallel spaced relation.

Abstract: A lubricating device, especially for use with a hermetic motor compressor unit, having a vertical shaft extending downwardly into a lubricant sump, and in the lower end of which shaft is a device having an inlet in the lower end and operable as the shaft rotates for propelling the lubricant upwardly along a hollow passage in the shaft and into a channel formed in the outside of the shaft and disposed within the axial limits of the bearing which supports the shaft.

Abstract: An electronic rhythm "break" pattern generator for use with a rhythm generator of the type used with electronic organs. The break pattern generator, when operative, interrupts the flow of the normal rhythm pattern and substitutes a special rhythm pattern for one cycle of the normal rhythm pattern. The typical pattern is of a type usually played by experienced musicians at the beginning, or end, of a musical composition and form "lead-in" and "lead-out" rhythm pattern portions. The system according to the present invention can also provide for an alternate rhythm pattern at any time not limited to the beginning or end of a composition.

Abstract: A transportation system in which vehicular elements are movably mounted on a track and are supported on the track during operation by an air cushion and are propelled along the track by a linear air turbine, cooperating elements of which are on the track and the vehicle.

Abstract: A method and apparatus for feeding strip stock into a machine, such as a press, in which opposed feed rolls are closed on the strip stock for frictionally engaging the strip stock and one thereof is accelerated from a stopped position and is then decelerated back to a stopped position for a feed cycle with a control system provided for determining the precise point during a feed cycle to initiate deceleration of the feed roll. At the end of a feed cycle, the feed rolls are again separated.

Abstract: A method and circuitry for frequency generation, especially for electronic organs, in which a digital signal is developed by the actuation of an element such as a key of an organ keyboard. The digital signal is converted to a respective voltage signal and the voltage signal is employed to control a voltage controlled oscillator which supplies a signal corresponding in frequency to the actuation of the aforesaid element. An organ provided with a system for frequency generation according to the present invention can be operated monophonically or polyphonically and is capable of producing desirable effects, including celeste and portamento effects.

Abstract: A clippings catcher for attachment to a power hedge trimmer having an elongated sickle blade assembly extending in one direction from the motor and handle assembly. The clippings catcher comprises a somewhat elongated rigid frame secured to the blade assembly and being substantially coextensive lengthwise therewith, a flexible transparent bag which is secured to the frame perimetrically of the bag opening and which extends rearwardly from the frame, and a deflector plate on the distal end of the frame which extends generally in a forward direction.

Abstract: A ball and socket joint and method of making in which a piston, especially a compressor piston, and most particularly a piston for a compressor that pumps refrigerant, has a top wall and a depending skirt and is connected to the upper end of a connecting rod by a ball joint which is made by forming a spherical socket in the upper end of the connecting rod and riveting a ball to the underside of the top wall of the piston and forming the upper peripheral region of the socket of the connecting rod around the upwardly facing side of the ball. In practice, the ball is placed in the socket of the connecting rod and the rod is formed about the ball and then the ball is riveted to the piston.

Abstract: A method and apparatus for generating tone signals for a musical instrument, especially an electronic organ, in which a stable high frequency source which is equal in frequency to that of a reference pitch multiplied by a large whole number is divided down by a number differing a predetermined amount from the large whole number, and the thus divided down frequency is supplied to a phase lock loop which, in turn, supplies a synthesizer which will develop a range of pitches over a musical scale. By further dividing down the synthesized pitches, octavely related pitches can be obtained for the supply of pitches in conformity with the number of playing keys in the instrument and the number of ranks of pitches desired. The thus generated pitches differ slightly from the reference pitches by being either somewhat sharp or somewhat flat and when combined with the reference pitches produce desired effects.

Abstract: A method and apparatus for locating a work member supporting fixture on a table and for clamping the fixture in located position on the table, especially to locate and clamp the work member during machining; in which the table is fixedly mounted in place, for example, in a machine tool with an upwardly facing horizontal surface exposed. The work member fixture has a downwardly facing surface receivable on the upper surface of the table and is adapted for fixedly supporting a work member therein. The table has passages therein under fluid pressure and a plurality of outlets lead from the passages through the upper surface of the table and are preferably provided with normally closed valves adapted to be actuated into open position by movement of a fixture thereover.