Abstract: A device is provided for teaching the operation of an electronic computer. The device includes a mock control panel display having an overall configuration and appearance substantially identical to that of the display of the actual computer. The mock display includes simulated light and control elements of like type and kind to those of the actual computer. A projector is provided, designed to project an image viewable from the front of the mock display thereby causing portions of the mock display to resemble an illuminated light array of the computer display.

Abstract: A hand rake having a plurality of tines whose spread is adjustable in width for different operations. The tines extend through a guide at the bottom of the rake handle and are secured at their upper end to a retainer which slides along the handle. A special retainer structure clamps the upper end of the tines tightly so that the rotational position of the retainer is maintained by the tines in a fixed position with respect to the guide position. A split collar and locking nut arrangement facilitate the locking of the retainer with one hand in various adjusted positions along the handle. The handle can be made in two parts for separation when not in use. A hook extends from the guide for hanging the rake when not in use.

Abstract: An apparatus and method for operating an auxiliary hydraulic load at low noise levels. A pump having a capacity which is sufficiently large to supply the load with the necessary volume of hydraulic fluid at relatively low pump speeds is driven by an engine operating at a speed near its idling speed. Throttle control means control the fuel supply to the engine at a level sufficient to drive the pump while maintaining the engine speed near its idling speed. When the engine speed is increased to a predetermined level in excess of its idling speed, means are provided to maintain the output from the pump at or below a predetermined flow rate to not overload the pump means or the auxiliary load. The pump may include a variable displacement pump or a plurality of fixed displacement pumps with means to vary the pump output in response to the pressure demand from the auxiliary load to maintain the torque input requirements for the pump below a predetermined level.

Abstract: The invention is directed to a novel apparatus for milling Swiss-type screw machine cams. The invention provides a highly simplified and economical numerically controlled system enabling Swiss-type screw machine cams and similar articles to be milled with an ease and precision heretofore unattainable otherwise than with highly sophisticated and costly equipment.In its most typical application, the invention is utilized in the retro-fitting of an existing .Iadd.cutting machine, such as a shaping or .Iaddend.milling machine apparatus of otherwise conventional construction. Alternatively, the invention can be applied in the first instance in connection with the manufacture of modified milling machines incorporating the new control system.The system of the invention utilizes a conventional three axis .Iadd.cutting machine, such as a shaping or .Iaddend. milling machine, which is fitted out with a rotary table. Numerically controlled stepping motors are provided for the "X" and "Y" axes of the .[.milling.].

Abstract: A drawing table having a stand and a board linked to the stand in such a manner as to allow the board to be adjusted in position whereby the weight of the board creates a second moment about the axis opposing the first moment. A compensating means varies the second moment to compensate for variations in the first moment due to changes in the position of the board so that the board is balanced in any position.

Abstract: A single tool, having a bumper free-stroke chamber and jar free-stroke chamber spaced apart by the usual reduced-diameter barrel section, is provided. The tool carries impact faces and is adapted to selectively jar upwardly or bump downwardly.

Abstract: A lance for directing oxygen and fuel oil to a basic oxygen furnace includes a central fuel pipe, an insulating pipe around said fuel pipe, an oxygen pipe and water coolant pipes, all concentrically disposed. The central fuel pipe and insulating pipe have closed bottom walls and a plurality of relatively narrow fuel tubes are connected to bores in the bottom wall of the fuel tube, extend through the bottom wall of the insulating pipe and extend into three converging-diverging orifices. The narrow fuel tubes are supported in cantilever fashion and are concentric with each orifice.

Abstract: A portable photographic exposure apparatus for making reproductions of loft drawings, body drafts or the like directly from the drawing table on which the drawing is made. A wheeled cabinet structure has a horizontal supporting surface, the height of which is adjustable to the height of a drawing table, with an exposure unit adapted to be mounted on the supporting surface and containing a light source, a set of electric motor driven wheels, and a source of static electricity. The exposure unit is driven over the drawing table to expose a sheet of film which is laid over the drawing on the drawing table to reproduce the drawing. Static electricity projected by the exposure unit presses the film firmly against the drawing to be reproduced. The electric motor is reversible to return the exposure unit to its supporting cabinet. The apparatus may also be used to expose a negative which is subsequently processed to provide positive reproductions of the loft drawing.

Abstract: A translator comprising a light receiving unit including three kinds of photocells having spectral sensitivities to red, green and blue colors respectively for receiving light from the optical projecting system of an enlarger equipped with color correction filters, arithmetic units for calculating ratios between the outputs of the photocells by taking one of the outputs as denominators and the other two outputs as numerators respectively, comparison output setting units having their outputs determined only by the conditions of a negative previously memorized for comparison with the outputs from the arithmetic units respectively, and comparison units for comparing the outputs from the arithmetic units with the corresponding comparison outputs individually to indicate the differences therebetween, whereby the amount of color correction given only by the conditions of the negative is adjusted for the enlarger actually used for color printing.

Abstract: Chromium-nickel-manganese steel characterized by good welding properties, which steel in the as-welded condition enjoys a combination of strength, ductility and impact resistance, along with good resistance to intergranular corrosion and good resistance to general corrosive attack. The steel contains about 20% to 25% chromium, about 6% to 17% nickel, about 3.5% to 7% manganese, about .15% to .50% nitrogen, with carbon not exceeding about .08, and with at least one of the three ingredients molybdenum, columbium and vanadium. For a best combination of properties at least two of the three ingredients are employed.

Abstract: The information stored on the dielectric target of a bistable storage tube is read out nondestructively employing a pulsed electron beam. The electron beam is turned on for a period having a duration less than necessary to change a given area of the target from one stable stored potential to another, while the period between pulsations is long enough so the tube's flood beam can return a given area to its original stored potential.

Abstract: A white balance control system which has two amplifiers for red and blue video signals, two memory circuits for selecting the gains of the amplifiers in response to signals applied thereto, and two comparator circuits for comparing a green video signal with the red and blue video signals, respectively. The compared signals are respectively applied to the memory circuits selectively.

Abstract: Conforming ladies garments having smooth lines assembled from one piece of woven or knit material comprising a tubular body member providing at one end a torso opening and at the other a head opening divided by two shoulder straps positioned so as to provide a neck opening and two arm openings; cut and assembled so that the bias of said piece of fabric is substantially parallel to the axis of symmetry of the body of the wearer.

Abstract: An improved jumpsuit garment with integral drop seat flap for, for example, conventient lowering of the lower rear portion of the jumpsuit for restroom facility usage. The garment of the present invention is worn as a garment over the torso of a man, woman, or child or at least the upper and central torso, and has utility for all types of dress, including casual, formal, work and recreational environments. The garment is one piece and usually full length and has an opening in the lower back portion for correct exposure of the derriere for toilet purposes which is covered by the drop seat flap. The drop seat flap utilizes uniquely positioned and designed means and belting for securing it closed when the drop seat flap is in the raised position.

Abstract: An endoprosthetic knee joint device with separate pairs of femoral and tibial condylar runner and track components is improved in respect of bone cement fixation surfaces, mutually articulatory bearing surfaces, and securement location relative to each other and the relevant bones. The femoral components have L-shaped fixation surfaces defining a slightly obtuse angle, and the tibial component fixation surfaces are tapered. The femoral component bearing surfaces have longitudinal convex curvature of higher and lower order over respective end portions, the tibial component bearing surface has longitudinal concave curvature of lowest order, and these bearing surfaces have complementary lateral curvatures of highest order. All components have recesses at one end to engage a jig assembly which connects with the femur in predetermined relationship and locates the components relative to the natural condyles.

Abstract: An animal commode which fits into a conventional toilet bowl in such a manner to permit both animal and human use of the toilet facility without mutual interference, and which is flushed by the normal flushing of the toilet bowl.

Abstract: A self-contained portable sanitation unit formed in two vertically stacked sections. The top section includes a seat and cover, a bowl having an outlet port at its bottom, walls defining with the bowl a flush water chamber surrounding the bowl, and pump flush apparatus for discharging flush water into the bowl. The pump apparatus and the bowl are constructed and arranged to assure that the flush water is discharged from a discharge nozzle in a stream against the bowl wall so as to substantially eliminate "spitting" or other undesirable splashing of water thereby eliminating need for a flush rim. The lower section functions as a holding tank and is sealed from the environment by a manually actuated slide valve assembly which has its valve body and valve blade located within the holding tank to conserve vertical space, and the handle for the valve blade is located at the front of the unit.

Abstract: A pit-type latrine with a capability of sealing the escape of odors and the ingress of insects, including a chute and a tippable pan at the lower zone of the chute adapted to contain a quantity of water.

Abstract: A cushioned toilet seat has a lightweight yet strong, relatively thin, annular base member of molded plastic having inner and outer narrow annular vertical flanges and narrow vertical reinforcing ribs forming wide channels therebetween. Supported on the annular base is a foamed plastic cushion, preferably polyurethane, which is plano-convex in cross section. The base and cushion are encased in a tight wrinkle-free plastic film, preferably vinyl, which consists of two pieces of film fused together. Vents are provided through the base to provide communication between the foamed cushion and the atmosphere to allow air to escape from the cushion as it is compressed and to allow air to return to the cushion to accelerate the return of the cushion to its fully expanded condition.

Abstract: A drain closure assembly including a resilient, dome-shaped plug member which may be changed from stable "closed" convex configuration to a stable "open" concave configuration by applying pressure to either an edge portion or a central portion of the plug member. The plug member is carried by a stem means which in the preferred embodiment is biased upwardly by spring means from a depressed position under the influence of pressure to a stable upper position when the pressure is released.

Abstract: A dual purpose sofa bed comprisesA. first and second longitudinally elongated frame sections including longitudinally elongated, parallel tubular stretches two of which associated with the respective sections extend in adjacent relation,B. and hinge means interconnecting said two stretches to accommodate pivoting of the sections between collapsed and extended condition, one section overlying the other to form a sofa framework in said collapsed condition, and said sections extending at the same level to form a bed framework in said extended condition,C. said hinge means including longitudinally extending integral parallel sleeves respectively in alignment with said two stretches, and hinge pins received within said sleeves and stretches.

Abstract: In abstract, a preferred embodiment of the present invention is an adjustable support frame for bed ridden patients covered with a removable, resilient supportive material.

Abstract: A device to aid in supporting the torso when working in awkward and uncomfortable positions, such as the torso of a mechanic when working under the dashboard of an automobile.

Abstract: A head rest device for protecting the hair arrangement from becoming disturbed when the user lies down to take a nap or to sleep. It includes a base board of substantial width and depth to replace the usual pillow, and has a head support extending upwardly from an intermediate portion of the base board and secured thereto, the head support having left and right upwardly sloping shoulder portions intersecting at their tops with the upper edges of the downwardly curved catenary-like head engaging portion. The head support is preferably made of soft resilient molded material with rounded edges for comfort.

Abstract: The disclosure relates to a support appliance in the form of a mattress formed from a resilient foam material having interconnecting air transmitting cells, the upper surface of the mattress having at least an impedance to gas flow whilst permitting transmission of water vapour from the outer to the inner side thereof for removal by air flow through the mattress effected by an air pump.

Abstract: A combination tool especially suited for firemen, including a number of cooperating elements for efficient operation during a fire. A large hook, normally folded to protect the hook point, and a folding pull handle are the primary components. Other useful elements comprise a spanner wrench for opening and closing hose couplings, and a socket wrench for operating water and gas valves. The tool is small enough to be carried in a fireman's coat pocket.

Abstract: An elongated handle supports a fixed pruner anvil and a saw attached thereto. A movable pruner blade is attached to the anvil and bears a movable pulley. A flexible cord passing over the movable pulley and a fixed pulley attached to the anvil can move the blade upwardly towards the anvil and thus cut tree limbs interposed between the blade and anvil. The handle also supports a pressurized aerosol can containing paint and propellant, the can having a conventional depressable nipple on its top which permits a jet of paint and propellant to be ejected from the can when deppresed, A solid vertically elongated rod is disposed above the nipple, with the top end of the tube being attached to the blade and moving downwardly towards the nipple as the blade moves upwardly towards the anvil. The tube depresses the nipple and thus causes a jet of paint to be sprayed. A spring presses the blade downwardly away from the anvil.

Abstract: A shallow water moored buoy having an anchor retaining mechanism on a bot deck which automatically releases an anchor when the buoy strikes water. The buoy is filled with floatation material which encloses electronic and battery packages and has an antenna mounted on an upper deck and hydrophone sensors attached to a deployable anchor cable which is secured to the center of the bottom deck.

Abstract: A head of a vacuum cleaner of the type adapted for cleaning the floor and walls of pools such as swimming pools by movement of the head over, whilst being slightly spaced from, the floor of the pool whilst subjected to suction, having at least one section of the portion of the head designed to be moved over the floor hingedly connected to another section of that portion.

Abstract: A coin controlled golf ball washer having a liquid-tight enclosure arranged for containing a bath of a cleaning solution, and a drum rotatably mounted in the enclosure immediately adjacent the bath and provided with an opening arranged for permitting placement of golf balls into and withdrawal of the balls from the drum. A coin controlled motor selectively rotates the drum for causing solution to be transferred from the bath into the drum by a carrier arrangement associated with the drum, and for tumbling the golf balls to be cleaned against scouring brushes arranged within the drum.

Abstract: This invention relates to castors, for example for builders' staging and hospital beds. The castor includes an upright spindle on which wheel-carrying plates are mounted, a wheel having an axle extending through openings in the plates, a wheel braking device, cam means for moving the axle along the openings to and from a braking position, said openings being of constant depth so that the axle has substantially no play and the cam means has cam slots so shaped that movement of the cam plates causes braking device to engage the wheel firmly when not loaded, the load being then shared by the axle and the wheel.

Abstract: A connector leaf for cooperating with a like leaf as an assembly for detachably connecting panels or other structures together comprises a generally rectangular planar body having a pair of knuckles at its opposite ends, each with an axial bore therethrough for receiving a connector pin. The knuckles are flush with one face of the body and project outwardly of the other face thereof. In the preferred embodiment, the knuckles are at diagonally opposite corners.

Abstract: An improved stuffing horn for a meat encasing apparatus which includes as an integral part thereof a rotating stuffing tube. The stuffing tube has a horn mounted on its forward end in order to assist in the casing filling process. The stuffing horn, or fin head, of this invention is preferably multiple threadably engaged with the stuffing tube and is designed to provide a smooth bore through the stuffing tube and into the fin head. The fin head is securely fastened to the stuffing tube but yet easily removable and since a smooth bore exists meat emulsion flow through the tube is generally laminar without impeding turbulence and drag.

Abstract: Apparatus for separation of animal intestines. The apparatus performs automatically all stages of the separation of the gold beater strand of the small intestine from the stomach of a beast and also beats the separated strand so that the final product may be used without further processing. The small intestine tube is first severed from the small intestine and pulled over a horn member, the small intestine then being severed longitudinally and the upper portion of the severed tube then being slit into a number of strands, each of which is then beaten by rollers and fed over a final member of the apparatus for collection.

Abstract: Apparatus and method for removing fibers from fiber-laden pallets is disclosed in which the bulk of fibers is removed in a primary unloading area thus leaving a thin layer of fibers that are removed by a surface cleaning device. The surface cleaning device included a multiple-blade rotary sweeper which is spaced vertically above the uppermost portion of a pallet to enable the pallet to move therebelow without mechanical interference with the rotary sweeper. A cowling encloses a portion of the periphery of the rotary sweeper to increase the efficacy of fiber removal by the rotary sweeper. The rotary sweeper mechanically engages an upper portion of the thin layer and removes it from the pallet. A suitable gas blast device impinges upon the pallet surface at a location substantially below the rotary sweeper to engage a lower portion of the thin layers of fibers. The gas blast device causes fibers to be lifted upward and into mechanical engagement by the blades of the rotating sweeper.

Abstract: An integral one-piece cable tie including an elongated flexible strap having a row of teeth thereon, a frame integral with one end of the strap and having an abutment wall and an end wall and an entry surface and an exit surface and a strap-receiving opening therethrough, a ledge on the end wall extending toward the abutment wall, and a pawl pivotally mounted on and integral with the ledge within the opening end having a set of teeth thereon shaped complementary to the row of teeth.

Abstract: A length of wire of uniform composition throughout has end portions of circular cross section bent into the form of mutually interengageable loops with free ends. The loops can be interengaged and then drawn into a knot by endwise tension applied to the wire. The portion of the wire intermediate the end portions is of uniform oval cross section of such less area than the circular cross section of the end portion that, when the wire is subjected to a direct tensile pull, its load capacity approaches more nearly the load capacity of the knot than in prior wire bale ties. The longest cross sectional dimension of the intermediate portion of the wire is juxtaposed flatwise against the bale in the installed condition of the tie.

Abstract: A main hook portion is provided with a D-ring engaging upper area and safety ring engaging lower area. A spring loaded pivoted snap component holds the D-ring in the upper area yet allows a safety ring to be engaged and disengaged from the lower area. In mining, particularly, the D-ring is secured to the miners safety belt and the safety ring to one end of the safety cable anchored to the mine wall or the like.

Abstract: A yarn sorting device having a multi-slotted rectangular frame member wherein each slot is suitable for receiving and retaining several strands of yarn. The strands, which have been prearranged into convenient groupings, are slid sideways into the slots so that each grouping is located in a different slot or group of slots. The slots are arranged so that each strand of yarn is accessible and may be selected and conveniently withdrawn from the sorting device without disturbing the other strands in the same or adjacent slot.

Abstract: Conveyor apparatus for temporary holdup of textile strands, especially crimped strands for setting. Screenlike conveyor belts receive the strand between downwardly converging flights and discharge the strand from between upwardly diverging flights. The conveyor apparatus is housed in a heated steam-fed enclosure.

Abstract: Surface wetting of scored textile film strands facilitates fibrillation thereof. Liquid water of inert aqueous solution is applied by various means in the form of droplets or a thin surface layer to such strands, which then are compressed laterally and longitudinally to fibrillate and crimp them, as by stuffer crimping, in a continuous process optionally including predrawing the strands to increased length.

Abstract: A flexure-compensating roll for a rolling mill having a rotatable roll shell partly of cylindrical shape disposed about a non-rotating beam with hydraulically actuated pistons received in the beam for support of the shell along the line of contact with a mating roll includes inboard bearings for support of the roll shell from stationary piers and outboard bearings for support of the beam from the shell, the inner race of the outboard bearings being fixed to the shell and the outer race thereof being fixed to the beam via plates or spiders, a further spider coupling to the shell for the application of torque thereto.

Abstract: A brake force distributor valve for limiting the brake pressure at the rear wheels of a vehicle when the load shifts to the front wheels during braking. The distributor valve includes a movable element which overcomes a spring to interrupt the flow to the rear wheel cylinders when the brake pressure exceeds a value determined by the preload on the spring. The spring abutment is fixed to the housing by shearing the surface of the material of one of the housing and abutment completely through at selected spaced locations about the periphery thereof and forcing the sheared material into a peripheral groove contained in the other of the housing and abutment while a predetermined force is applied to the spring to establish the spring preload and, hence, the response point of the valve.

Abstract: A flexible branching strip for a wire bundle comprises a pair of preferably flat elongate interlocking members selectively spaced from one another and joined together at discrete intervals by flexible web portions. One of the members contains a series of open wire receiving slots interposed between respective tongue portions which are interlockingly engageable within a series of transverse openings in the other member. Selected wires of a wire bundle may be branched out of the bundle and disposed within respective wire receiving slots, and the strip curled about the branched bundle so that the members may be interlocked to one another with the web portions operating as spaced bundle ties about the unbranched portion of the wire bundle. The branching strip may be temporarily supported in a slotted strip support attachable to a wiring board for convenient orientation of the wire receiving slots during the branching operation.

Abstract: The invention disclosed herein comprises a pallet construction and method of forming the same. A support member has a plurality of apertures arranged in rows and columns. The struck-out portions obtained when forming the apertures are gathered and secured together for use as legs on the support member. The corner portions and central marginal portions as well as the center of the support member are free of apertures and the support legs are secured in these areas to form the pallet structure. These support legs are secured to the planar member in alignment with the rows and columns of apertures so that stacking of the pallets can be accomplished by inserting the legs of one pallet into the holes of an adjacent pallet. Removable stand offs can be formed from the struck-out portion to provide additional legs or removable main support legs.

Abstract: The improved transmission tools are adapted to compress springs forming parts of the front and rear servo assemblies of an automatic transmission, so that snap spring locks may be removed to permit removal of the assemblies from the transmission housing. The tools make use of holes which are already part of the transmission housing, and include parts which are freely inserted in such holes, but which bind in the holes when the tool is canted slightly so as to permit force to be applied to the respective spring to compress it and therefore permit removal of the respective snap ring lock.

Abstract: A method of manufacturing a nuclear fuel element which contains a pre-activated non-evaporable getter material such that the getter material starts to sorb gas at a temperature lower than the temperature at which the fuel element walls start to sorb gas which getter action at least partially takes place at subatmospheric pressure.

Abstract: A method of providing insulated joints between consecutive lengths of insulated pipes each consisting of at least one fluid conducting pipe surrounded by a layer of heat insulating material and an outer protective tube from which the ends of the conductor pipe or pipes project, whereby two aligned pipe lengths are joined by joining the protruding conductor pipe ends by welding or otherwise, thereafter mounting a tube casing around the space between the adjacent ends of the insulating material, said casing being sealed against the end portions of the protective tubes, then letting a foam producing substance foam up inside the tube casing until the foam flows out through an upper hole in the tube casing, and thereafter closing this hole by means of a stopper, characterised in that the stopper is mounted in the hole before the foam appears therein, the stopper used being adapted so as to close the hole only partially in the first instance and having means operable to completely close the hole, these closing mean

Abstract: A portable bracket assembly capable of being attached to the spindle carriage of a milling machine. A self-contained indexing table and indexing means is located on the assembly together with a transfer arm having three degrees of freedom and articulated fingers for selecting a tool holder from the indexing table and inserting the selected tool holder into the spindle of the milling machine when operated in a first direction and reversing the sequence when operated in the opposite direction. The assembly attachment allows a numerical controlled milling machine to perform sequential operations on a work piece that requires the use of a plurality of different individual tools.

Abstract: A method of applying an anti-reflective coating, particularly a metal oxide coating to a solar cell during the manufacture of such cell.