Abstract: The rear wheels of a rotary mower are driven off the blade shaft by a compact and cylindrical speed reducer mounted directly on the rear wheels drive axle. The speed reducer is drive connected to the blade shaft by a variable pulley-belt system to provide an adjustment in the speed of the mower along the ground, whereas start and stop of the mower is controlled by a wrap-around spring type clutch on the speed reducer.

Abstract: A walk-behind rotary lawn mower having a sliding drawer type grass catcher box mounted directly on the rear part of the deck behind the engine and between the U-shaped handle and rear wheels. A cover fixedly mounted on the handle closes the top of the box. A vertical tube carries the cut grass-air mix from below the mower deck up to against the cover. The cover is provided with an integral arcuate chute for causing the cut grass-air mix to swirl around in the box so the grass can fall by gravity into the box. The tube, cover and box are a closed air system and the air is exhausted to the atmosphere through vents in the cover which face in directions away from a user positioned behind the mower. The tube, cover and box are constructed from air impermeable plastic, and the box can be lined with a conventional store-bought throwaway type plastic garbage or leaf collecting bag.

Abstract: A solid state relay in which the control circuit for controlling a bidirectional conduction device (triac) includes a silicon controlled rectifier (SCR) and a photo transistor that is responsive to a light coupled control signal. Both the SCR and the photo transistor are coupled in parallel between the d.c. terminals of a full wave rectifier. The base of the photo transistor and the gate of the SCR are coupled to the collector of a transistor that is connected in an common emitter configuration between the d.c. terminals of the rectifier. The last-named transistor has its base connected to the collector of the photo transistor. The last-named transistor is a zero voltage crossover detector and conducts only when the photo transistor is nonconducting. The photo transistor and SCR may conduct only when the crossover detector transistor is nonconducting.

Abstract: A resistor device of simple construction particularly adapted for use as a precision, low ohmic value resistor. The terminal leads are axially aligned and extend outwardly from a molded housing. The inner end of each lead is shaped into a flat surface to facilitate the welding thereto of a resistor element and to minimize twisting of the embedded end of the lead. A radially extending disc shaped portion on each lead is adjacent the flat portion and is embedded in the molded housing to prevent axial movement of the embedded end of the lead. The embedded flat and disc shaped portions serve to minimize forces from acting on the weld joints to break the welds. The resistance element is free standing wire shaped into a serpentine configuration and embedded in the molded housing.

Abstract: Apparatus for cleaning pipe ends having a closed system, for recycling cleaning fluid by removing contaminants, which includes independently positionable pin end and box end wash heads each of which can be used alone or simultaneously with the other; each wash head providing a high pressure spray of cleaning fluid impinging on the exposed threads of the pipe end being washed within a sealed wash chamber formed by the wash head.

Abstract: A molded plastic coil bobbin having means for securing the end lead of the coil within a groove provided in an end flange of the bobbin. The groove tapers outwardly from the cylindrical tube of the bobbin to the outer periphery of the end flange. The bobbin terminals are on each side of the groove. The flange has thin top and bottom walls above and below the groove. The end lead of the coil passes through this groove in passing from one terminal to the cylindrical tube of the bobbin. Radially extending ribs protrude downwardly and upwardly, respectively, from the top and bottom walls of the flange and serve to anchor or restrain the wire in a serpentine path in its passage through the flange. This damps vibrations that might be set up in the wire and thus minimizes the prospects that the wire will be broken due to vibrations.

Abstract: An acoustic transducer for use under water is constructed in such a manner that when out of the water the transducer element is substantially isolated from vibrations that otherwise would be coupled thereto from the mounting base on which it is mounted.

Abstract: The invention relates to an apparatus and method for producing an elastomeric extrudate having a constant cross section area. The extrudate is shaped in to a ribbon through a roller die and applied to a tire surface mounted on a rotating spindle. Digital electronic circuitry is employed to provide precise shaft synchronization at a pre-selected rotational velocity ratio between the rotating shafts. The synchronization assures repeatable velocity synchronization between the source of elastomeric material and a take-up device at the axis of rotation of the two components. The elastomeric material is extruded in a manner permitting control over the wrap operation and the amount of elastomeric material employed for a given cycle.

Abstract: A produce sorting unit that is a separate item of commerce intended for mounting on an existing produce harvester that has a conveyor for conveying produce to be sorted or graded. The unit comprises a frame that is adapted to be lifted onto the existing harvester and installed without requiring major alterations or modifications to the harvester. The frame supports a pair of produce elevating conveyor belts that extend outwardly from the frame and downwardly to the harvester conveyor to pick up produce therefrom. A horizontal conveyor belt supported on the frame receives produce from the elevating conveyor belts and carries it to an inspection location. The unit also includes a rejected produce conveyor belt underlying and extending transversely to the horizontal conveyor belt. Optic-electronic sorting means secured to the frame is responsive to light received from the produce as it is discharged from the horizontal conveyor at the inspection location.

Abstract: A pair of movable joined scissors are positioned between the base and dispenser table by being roller-guide connected thereto, and the main compression springs are tied to the scissors axis, and the scissors are centered by tension springs connected to the scissors and base.

Abstract: An optical system for use with apparatus for grading articles of produce according to color. The simplified system is comprised of an aspherical lens, a field stop and an end of a fiber optic bundle at the image plane of the lens. Color filters and photoelectric detectors are positioned from the opposite end of the bundle at a distance so as to be uniformly illuminated by light emanating from each fiber of the bundle upon which a portion of the image is present.

Abstract: An acoustic pin detecting and locating device is disclosed, comprising a linear array of transducers mounted on each kickback wall. A microprocessor sequentially energizes each transducer with a short burst of high frequency pulses; the reflections from standing pins to the transmitting transducer (direct data) and the next adjacent transducer (cross data) are gated into separate a/d converters. The converters are sampled periodically to divide the signal return to each transducer into a plurality of range cells. The direct data and cross data returns to each transducer array from two data fields. Analysis of these two fields provides the information needed for detection of the location of each standing pin. The data return to each transducer after each acoustic burst is peaked by comparing the magnitudes of echo signal returns in adjacent range cells. A string is formed for each significant return, including the x,y coordinate position of the return; the weight of the return and its first and second moments.

Abstract: An acoustic pin detecting and locating device is disclosed, comprising a linear array of transducers mounted on each kickback wall. A microprocessor sequentially energizes each transducer with a short burst of high frequency pulses; the reflections from standing pins to the transmitting transducer (direct data) and the next adjacent transducer (cross data) are gated into separate a/d converters. The converters are sampled periodically to divide the signal return to each transducer into a plurality of range cells. The direct data and cross data returns to each transducer array form two data fields. Analysis of these fields provides the information needed for detection of the location of each standing pin.

Abstract: Processes for the selective removal of lipid constituents from elements of the tobacco plant comprising treating said elements in a solvolysis system consisting essentially of a mixture constituted by a major proportion of a hydrocarbon fat solvent and a minor proportion of a lower alkanol, whereby residual lipid level as determined by Soxhlet extraction is substantially reduced; and smoking compositions incorporating the processed tobacco material.

Abstract: Reconstituted tobacco compositions comprising tamarind gum as an adhesive agent, and processes for preparing reconstituted tobacco at high solids levels with controlled viscosity.

Abstract: A dot printer compatible with a bowling scorer system is disclosed wherein game score data is stored for a plurality of bowlers; one character of such data for each bowler is converted to a dot matrix compatible format; and a columnar portion of each converted character is printed for each player, the print operation being repeated until the characters are all printed. The system is uniquely compatible with printing of a game score background grid, whereby certain dot printing elements are energized in printing every column to print the grid's horizontal lines; and all vertical dot elements are concurrently energized at designated intervals between character printings to print vertical lines.

Abstract: An acoustic pin detecting and locating device is disclosed, comprising a linear array of transducers mounted on each kickball wall. A microprocessor sequentially energizes each transducer with a short burst of high frequency pulses; the reflections from standing pins to the transmitting transducer (direct data) and the next adjacent transducer (cross data) are gated into separate a/d converters. The converters are sampled periodically to divide the signal return to each transducer into a plurality of range cells. The direct data and cross data returns to each transducer array form two data fields. Analysis of these fields provides the information needed for detection of the location of each standing pin.

Abstract: Soft rubber buffing dust is dispersed throughout the hard rubber cover of a bowling ball. When polished, cavities are formed in the cover, resulting in increased traction or grip between the bowling ball and bowling lane surface.

Abstract: An apparatus for aligning product being conveyed in a forward direction where a conveying element urges product to be re-distributed laterally for advancement to an adjacent accumulation plate to form interlocking hexagonal close pack clusters. Further distribution in the longitudinal and lateral directions takes place along a downwardly sloping contiguous conveyor having a series of flaring spacers until product is finally distributed in a desired fashion.

Abstract: A selectable cycle defrost timer having two timing cams and two timing switches that are switched from first to second switch positions by the respective cams. The two cams rotate different numbers of times in a given time period, but the two switches are simultaneously in their second switch positions just once each given time period. Interconnection means between the two switches permits the timer to be connected into a defrost control system in such a manner that a selectable switch permits a normal defrost operation of several defrost cycles per day, or alternatively, just one energy saving defrost cycle per day.