Abstract: Apparatus and method employing the engine unit of a conventional chain saw to power an electrical generator. In a first embodiment, a generator is detachably mounted to the engine unit, with an endless belt drivingly connecting the two. A second embodiment includes an engine unit of the above-described type operatively connected to a vehicle-mounted alternator.
Abstract: A method for butt welding pipe sections together wherein each pipe section has a beveled end includes positioning the pipe sections adjacent one another so that the beveled ends define a weld groove and locating filler material of elongate dimension having a triangular cross-section so that an edge portion thereof protrudes through the weld groove. The filler material is fused to the weld groove by striking an inert gas-shielded arc between a Heliarc torch electrode and the beveled ends and advancing the electrode relative to the filler material so that a weld bead is formed having a convex profile on the interior surfaces of the pipe sections adjacent the weld groove.
Abstract: A belt abrading device including a pair of laterally spaced rollers over which an elongate endless abrasive belt is trained. One of the rollers is mounted for shifting toward and away from the other. An exhaust hood is disposed adjacent the movable roller for shifting toward and away from the roller and the belt trained thereover. The exhaust hood is mounted on a lever arm which is operatively connected to a motor for shifting the hood toward and away from the roller. A sensor is provided for sensing continuity of the belt. Under usual operating conditions, the motor maintains the exhaust hood a preselected distance from the roller. Should the belt break and the sensor sense such discontinuity, or when desired by the operator, the motor is operated to shift the hood away from the roller.
Abstract: Apparatus for mounting a percussion instrument, such as a cymbal, includes a standard and rotatable means mounted on the standard for supporting the cymbal and permitting it to revolve, after impact, about an axis lying generally parallel to a plane defined by the marginal periphery of the cymbal.
Abstract: Palletizing apparatus having extendable/retractable pusher arms. The apparatus includes a frame on which are mounted a layer-arranging table, a horizontally shiftable transfer carriage which mounts the pusher arms, a vertically shiftable stacking platform, and a vertically shiftable finger rake. The surfaces of the table and carriage are each formed from a plurality of laterally-spaced elongate members, with the table and carriage elongate members being interspersed to permit the carriage to shift longitudinally within the surface region of the table. The pusher arms, when extended, positively engage articles arranged on the layer-arranging table, thus serving to push the articles from the layer-arranging table to a position vertically adjacent the stacking platform when the transfer carriage is shifted downstream. At the latter position, the finger rake is lowered to positively engage the sheet articles and the pusher arms are retracted.
Abstract: Binary-coded message communication for accessing, over a telephone line, a unit such as a telephone-answering device. Communication takes place through the use of time-space-assigned bursts of two different audio frequencies. One frequency is used in a single burst to define the beginning of a message, and the other frequency is used in one or more bursts to define a selected binary-code--the code being determined in accordance with the time-locations of such burst(s).
Abstract: A two-piece radiation shield garment for the human body is disclosed comprising an adjustably overlapping vest to protect the upper body and a wraparound skirt to protect the lower body. The vest and skirt are constructed of multiple inner layers of flexible radiation shielding material covered with nonshielding fabric or other material. The vest and skirt may be attractively fashioned and decorated to encourage their use as a shield garment for women. The vest includes a rear shield panel joined to a pair of overlapping front shield panels. Similarly, the skirt includes a rear shield panel connected to a pair of overlapping front shield panels. The overlapping front panels of the vest and skirt have wide cooperating horizontal bands of Velcro-type tape closures providing an adjustable fit and a secure closure for the heavy materials. The vest and skirt overlap in the waist region when worn to provide continuous vertical and all-around protection to the body while allowing freedom of movement to the wearer.
Abstract: A method and apparatus for washing a mixing container or tube includes a network of piping mounted within the tub. The piping is interconnected to a pumping system operable for delivering a washing fluid, such as a liquid, to the piping. The piping includes spray outlets which may be selectively directed toward walls and internal components of the tub for Washing residue therefrom. The washing liquid may be retained within the tub as a portion of the liquid required for a subsequent mixing operation.
Abstract: A three-stage, four-section telescopic ram employing a plurality of internal fluid passages, with valving provided in certain of these passages, to produce a uniform overall extension speed when pressure fluid is supplied to the ram at a substantially constant rate.
Abstract: An improved angle guide for use in directing a first structural member toward a position adjacent a section structural member. The angle guide includes a flange and set screw assembly for clamping to the second structural member. A brace extends from the angle guide for engagement with the second structural member for preventing rotation of the angle guide when it is under load.
Abstract: A method for enabling simple, reverse-side alignment of a pair of templates for electrical circuit patterns which are to be placed on the opposite sides of a double-sided printed circuit board. The method proposes, first, placing the templates for such patterns in pattern-aligned, confronting relationship, followed by trimming of a pair of intersecting margins in the templates to produce an angle of intersection therebetween which matches the angle of intersection of a pair of selected edges in such a board. The trimmed templates are then fitted on opposite sides of the board, with the templates' trimmed edges flush with the board's selected edges.
Abstract: In apparatus for abrading a workpiece including a central support member having a power-driven contact roll and an idler roll mounted thereon, and an endless, abrasive belt trained over the rolls with an air space being defined between inside surfaces of the belt and the central support member, an improvement which includes pressurizing the air space for maintaining same at a pressure greater than the prevailing air pressure adjacent the outside surfaces of the belt to substantially prevent inflow of abraded debris to the air space.
Abstract: A trephine instrument for use in surgical removal of a cornea includes a cylindrical blade mounted on an elongate handle. The blade is power-driven and an actuating element is operable for selectively extending and retracting the blade. In a second embodiment, an ultrasonic source powers the blade. Further, the blade is detachably connected to the handle so that it may serve as a storage container for a cornea. In both embodiments, the handle includes offset portions so that a surgeon may grip the instrument with both hands and position the blade adjacent an eye.
Abstract: A pipe chock stick used in stacking pipes. The chock stick comprises a longitudinal board having end slots, and one-way and two-way notch blocks slidably received and lockable within the slots.
Abstract: Apparatus for use in predetermining volume of liquid to be withdrawn from a container having a top, bottom and side walls includes a conduit insertable through an opening in the top wall which is selectively shiftable within the container for providing a liquid conducting passage. A measuring device is positionable adjacent an external portion of the conduit for displaying liquid volume withdrawable through the conduit when it is linearly shifted to a preselected position.
Abstract: A nipple for use in firearms employing percussion caps. The nipple includes an elongate body adapted at one end to receive a percussion cap, and adapted at its opposite end threadably to engage the ignition chamber housing of a firearm. A passage extending axially through the nipple includes a cylindrical primary section communicating with the cap-receiving end of the nipple, and a cylindrical constriction section communicating with the opposite end of the nipple body. These two sections intersect planar end faces of the nipple body substantially normal thereto. A cone-shaped section interconnecting the primary and constriction sections is dimensioned to have a greater volume and a lesser axial dimension than the constriction section.
March 20, 1978
Date of Patent:
February 5, 1980
Michaels of Oregon Co.
Daniel E. Pawlak, deceased, by Catherine J. Pawlak, personal representative
Abstract: A locking device for securing a vehicle to an object. The device includes an insert which is detachably mounted on the vehicle in a position sealing off a chamber provided on the vehicle. The device further includes an elongate cable adapted to be stowed within such chamber with the locking device not in use. The cable may be removed from the chamber with removal of the insert, and on being passed around the object used to anchor the vehicle. The insert is used to fasten the cable to the vehicle.
Abstract: A magnetically driven pump system designed for use with a body-implantable heart-assist device. The system includes a body-implantable bellows-type pump adapted to transfer fluid to and from the heart-assist device, and a driving unit effective to drive the pump by magnetic coupling across the surface of the body.
Abstract: A method of forming a laminate composed of a solid polyester lamina bonded to a block. A block having a matrix composed of polyurethane foam and particles of expanded polystyrene distributed therein is prepared. A layer composed of a solution of a relatively unpolymerized polyester in styrene solvent with fiberglass embedded therein is placed in contact with a surface of the block. The styrene solution of polyester dissolves polystyrene particles adjacent such block surface, leaving recesses distributed in the block matrix. These recesses become at least partially filled with the polyester solution. The solution is then cured to produce a solid resin lamina which is joined with polymerized resin contained in the matrix recesses to secure the lamina to the block.
Abstract: A method and apparatus for transplanting crops includes a vehicular frame and a carriage reciprocally shiftable relative to the length of the frame. Plural fluid dispensing nozzles are mounted on the carriage for injecting fluid jets into the ground to form elongate, crop receiving cavities. The carriage is maintained substantially immobile relative to the ground during fluid injection while the frame may be continuously advanced. After the cavities are formed, seedlings are manually introduced thereinto.