Abstract: The specification discloses an apparatus for washing the interior of an elongate, generally rectangular freight container. The apparatus includes a wash dolly and a transfer carriage adapted to carry the wash dolly into alignment with the open end of the container. A control system including electrical and hydraulic circuits causes the wash dolly to travel off of the transfer carriage, along substantially the entire length of the container, and back onto the transfer carriage. The wash dolly scrubs and sprays the interior of the container as it travels.

Abstract: A field burning vehicle providing a downwardly opening cavity for covering a burning area, with mechanism for withdrawing the combustion products from said cavity and forcing them through a high temperature furnace to burn the solids therein, and thereafter directing the clean hot gases onto the field forwardly of said cavity to elevate the temperature thereof prior to its being covered by said cavity.

Abstract: An improved disc separator in which discs are mounted on retainers to form multiple disc units and the units are mounted end-to-end on a shaft and are clamped in place thereon. The discs have internal splines that project through and beyond splining slots in segments of the retainer, one spline only on each disc being wider than the others and adapted to fit closely in any of the slots in the retainer. The splines project slightly beyond the inner surface of the retainer and are swaged to hold the retainer segments rigidly in fully expanded positions.

Abstract: A rigid building component such as a door, table top or the like, is formed of coarse wooden particles mixed with adhesive, and a solid wooden edge frame, positioned between a pair of damp, substantially parallel, cellulosic fiber webs. A heated press is employed to compact the combination, particularly between the edge frame and the cellulosic fiber webs where the coarse wooden particles are greatly compressed to provide a durable edge. Under the heat and pressure applied in the press the particles are consolidated into a solid structure, while the damp cellulosic fiber webs are converted to tough exterior skins bonded to the coarse wooden particles. The sides of the rigid building component are suitably deeply embossed to provide a decorative paneled appearance.

Abstract: A truck or truck tractor having an opening between the base of its windshield and the rear end of its hood. Air pressure in this area drives air through a moisture tray and a collector trap to a conduit to an air cleaner leading to a turbocharger. Rain, snow and/or ice in the air is removed into the moisture tray and the collector trap, and the air cleaner has a moisture filter therein to remove any, slight residue.

Abstract: A forced draft fan creates within a furnace fuel cell a pressure which is high enough to provide a pressure gradient effective to force the combustion gases from the cell all the way to the dryer. The combustion gases are provided by waste wood products which are forced by a special feeding system into the fuel cell against the resistance of the relatively high air pressure within the cell, to create a burning pile. The feeding system blocks most of the smoke and combustion gases from back-feeding through the fuel passageway, and then removes the part that is not blocked. The combustion gases during the drying process become wet. A part of these wet gases are vented at the dryer but a recirculation fan effects the return of a portion to a blending chamber where they are mixed with hot combustion gases to be again directed to the dryer. The other portion of the wet gases is directed to the combustion chamber for augmenting its operation.

Abstract: A dump valve apparatus is described which may be used to drain a chemical reactor tank. The valve includes a valve seat ring having a substantially vertical inner seat surface defining a discharge passage, a valve plug having a substantially vertical outer side surface which fits in the seat ring and a seal formed between such vertical sealing surfaces. The valve inlet and outlet openings are aligned with the vertical discharge passage through the seat ring and the sealing surfaces are vertical to minimize the amount of material deposited thereon. The outer plug side surface slides across the inner seat surface during opening and closing of the valve so that such surfaces wipe each other to remove deposited material and provide a self-cleaning valve. The inner seat surface is provided with a plurality of annular grooves containing elastic sealing members which engage the outer plug side surface to form a liquid tight seal which is resistant to the pressure created by the liquid within the tank.

Abstract: A white cap dipper apparatus for metal fence posts and a method of dipping such posts, wherein the apparatus includes a shuttle car having a tilt frame for removing posts in successive groups from horizontal flow path cables, successively elevating such posts and dipping the same, and then returning the posts to the cables in horizontal position. The car reciprocates back and forth in the dipping zone in such timed relation to the flow path and with such speed that while it creates a gap in the flow path, it does not interrupt the continuity of the flow.

Abstract: A rotary air-lock feeder for a pneumatic conveying line includes the cylindrical housing with a straight bladed rotor mounted therein to propel materials from an upper inlet to a bottom discharge. The edges of the blades are positioned in close association with housing wall to prevent escape of air from the conveying line through feeder. A shear knife is mounted in housing with inner surface conforming to curvature of housing and a flat top surface intersecting inner surface to form a sharp cutting edge so as to shear material projecting beyond outer edge of rotor blades to prevent binding thereof between such outer edge and the housing wall.

Abstract: The specification discloses a method and apparatus for combining high speed horizontal and high speed vertical continuous mixing of sand and binder ingredients for mold making purposes. Sand supplied by a hopper assembly and liquid binder ingredients supplied by injection assemblies are fed into the rearward ends of a pair of side-by-side, horizontally extending cylindrical mixing chambers. They are rapidly mixed and conveyed forwardly by blade assemblies which extend centrally through the horizontal mixing chambers and are rotated at from about 300 rpm to about 1500 rpm. The mixtures are then discharged into a vertically extending cylindrical mixing chamber where they are rapidly mixed by a blade assembly which extends centrally through the vertical mixing chamber and is rotated at from about 300 rpm to about 800 rpm. The final mixture is then discharged from the vertical mixing chamber downwardly into a mold box.

Abstract: The specification discloses a multiple dental handpiece control system in which lifting one handpiece out of its hanger blocks supply of power and coolants to all other handpieces. Each handpiece has an individual control unit and a blockout unit. When a handpiece is lifted from its hanger, it actuates a valve to cause a piston in its control unit to shift to a condition causing supply of power and coolant fluid to that handpiece and cutting off power to the corresponding pistons in the other control units thereby preventing supply of power and coolant fluids to the other handpiece.

Abstract: A pneumatic material separator having adjacent generally vertical sorting ducts and a generally vertical discharge duct communicating with the tops of the sorting ducts is disclosed. Particulate material introduced into a first sorting duct is separated by an upwardly moving column of gas into an upwardly moving lighter fraction and a downwardly moving heavy fraction. The lighter fraction is carried to a position over a second sorting duct where the gas velocity is reduced. The heaviest particles of the lighter fraction fall into the second sorting duct while the remainder of the lighter fraction is discharged through the discharge duct.

Abstract: The specification discloses a bunsen burner guard formed by an arcuate, black shield mounted on the burner by a generally U-shaped clip in a position enabling the flame of the burner to be seen. The shield is of aircraft aluminum and is riveted to the clip. Aligned tabs are pushed out of the clip and the shield to lock the clip and the shield rigidly together.

Abstract: A detecting apparatus for tuning musical instruments receives an input signal from a sound transducer and removes second harmonic content therefrom by means of a filter responsive to a note and octave selection. A phase lock pulse generator receives the filtered output and generates a signal in step with the input sound signal. The generated signal is counted by a note counter during a gating period derived by counting a predetermined number of output cycles of an oscillator started in step with the input signal. Three outputs indicating "on-frequency", "sharp" or "flat" are supplied in the alternative at the end of the gating period in accordance with the count in the note counter at that time.

Abstract: The specification discloses a domestic water system reclaiming waste water in which a tap water line supplies fresh water only to a kitchen sink and as a replenisher for a reclaim system supplying all the water to a toilet, a lavatory, a bath tub, a clothes washer, laundry tubs and a dishwasher. Drains from the toilet and the kitchen sink lead directly to a sewer, and drains from all the other installations lead to a clarifier tank having an overflow to the sewer. A pump pumps water from the clarifier tank through filter tanks to all the installations except the kitchen sink and to a hot water heater supplying the lavatory, the bath tub, the clothes washer, the laundry tubs and the dishwater. An inline instant hot water heater is positioned in the tap water line to a hot water tap of the kitchen sink.

Abstract: Recording and playback optical scanners are relatively movable with respect to each other and with respect to a movable recording medium such as reel of tape adapted for recording variations in applied light. The playback scanner reproduces recorded information at a time delayed with respect to the time of recording, wherein the amount of delay can vary within wide limits. When the playback scanner is moved relative to recording scanner, the playback rate will be faster or slower than the recording rate.

Abstract: A corner watering circle move in which a line move and sprinklers thereon are stopped when the move comes to a corner portion of a field, an end section of the move then is swung to move a movable coupling member thereon into coupled engagement with a set coupling member, water then is supplied from the line through the coupling members to set sprinklers in the corner portion. After a predetermined sprinkling time, the line is cut off from the coupling sections, the sprinklers on the line are started, the end section is backed away from the set coupling member to a position aligned with the rest of the line and the movable coupling member is offset from the set coupling member, and the line move is moved to the next corner portion. The sprinklers on the line have differential pressure valve actuated by a pilot line on the line to control water supply to these sprinklers.

Abstract: A baseball batting range includes a plurality of pitching machines positioned for propelling baseballs toward corresponding batting stations. The range further includes a sloping floor and a sump where the batted baseballs are collected, and a conveyor which delivers the balls from the sump to a distribution hopper elevated with respect to the sump and the pitching machines. Gravity tube magazines fed from the distribution hopper hold a number of baseballs which are metered to the respective pitching machines. The sump and the distribution hopper are provided with agitators facilitating continuous movement of the baseballs.

Abstract: A hydrotherapy apparatus having a single nozzle which is continuously rotated through a circular path by a water wheel. Conduits divide a source of pressurized water into first and second portions, the first portion flowing past the water wheel before rejoining the second portion. Thereafter both portions flow through a venturi where they are aerated, through the center of the rotating flywheel, and through the rotating nozzle from which they are discharged. A valve can be manually adjusted for varying the amount of pressurized water that flows past the water wheel to alter its speed of rotation.

Abstract: A potato segment and a process for preparing frozen french fried potatoes suitable for microwave reheating. The potato segment has an undulating side surface configuration of particular dimensions which is adapted for microwave reheating. The potato segments are blanched, fried, and then frozen. When reheated with microwave energy, the potato segments resemble in quality, color, texture, flavor and odor, french fried potatoes prepared directly from fresh potatoes.