Abstract: An abrasive cleaning apparatus configured for use in combination with a mobile chassis comprising a base means including attachment means to fasten the abrasive cleaning apparatus to the mobile chassis, an adjustable nozzle support means to operatively support a plurality of nozzle means thereon and interconnecting boom means coupled between the base means and adjustable nozzle support means. The interconnecting boom means includes a first and second boom element arranged in telescoping relation relative to each other to permit linear adjustment of the adjustable nozzle support means relative to the base means and mobile chassis. The adjustable nozzle support means includes a first and second positioning means to permit movement of the plurality of nozzle means in a first and second plane respectively.

Abstract: A flexure hinge assembly comprising a pair of fixed telescopes inner and outer tubular members separated into at least one driving portion, at least one gimbal portion and at least one driven portion and a plurality of flexure blades all formed by a plurality of slots and apertures through the walls of each tubular member. Flexure blades are formed by pairs of adjacent apertures with the slots interconnecting apertures to separate the tubular members into the driving, gimbal, and driven portions. The four slots of each tubular member which divide that member into these three portions are axially coextensive with the slots in the other member and all extend in the same axial direction from the apertures which form the flexure blades. Such axially coextensive slots displace the driving and the driven portions of the tubular members in the same axial direction from the center of suspension, i.e., from the flexure axes of these portions.

Abstract: A vehicular power steering system including a primary hydraulic circuit for operating the steered wheels and a secondary hydraulic circuit for operating auxiliary equipment such as an implement or the like which may be attached to the vehicle. The system includes a fluid controller for controlling the flow of pressurized fluid from a power pump to the primary or steering circuit and the implement or secondary circuit. The fluid controller includes a valve mechanism which is constructed and arranged to provide the primary hydraulic circuit with pressurized fluid in the amount necessary to produce the desired steering maneuver while furnishing the secondary hydraulic circuit with the excess pressurized fluid supplied by the power pump. Thus the requirements of the primary hydraulic circuit may be always satisfied and have priority over the requirements of the secondary circuit in all modes of operation. .Iadd.

Abstract: A solar panel including photovoltaic cell encapsulated in a silicone resin, in which the base member to which the silicone resin adheres is a glass mat polyester in laminate or molded form.

Abstract: 1-Aryl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-2-ones of the general formula ##STR1## wherein: R.sub.1 is hydrogen, or unsaturated lower alkyl, preferably of 1-3 carbons, or unsaturated lower alkyl preferably of 2-3 carbonsR.sub.2, R.sub.3, R.sub.4, R.sub.5 are the same or different and are each hydrogen, halogen, lower alkyl, preferably methyl, lower alkoxy, preferably methoxy, or trifluoromethyl, andR.sub.6, R.sub.7, R.sub.8, R.sub.9 are the same or different and are each hydrogen or lower alkyl, preferably methyl.The compounds are prepared by dehydrohalogenating substituted 2-(3'-halogenopropionylamino)-diphenyl amines of the general formula ##STR2## wherein R.sub.2 to R.sub.9 are the same as defined above and X is halogen, in the presence of a solvent and a base, to cyclize the amines and then alkylating to introduce the unsaturated lower alkyl radical R.sub.1 on the nitrogen in the 5 position, if necessary. The compounds possess anticonvulsant, sedative and muscle relaxant properties.

Abstract: A switching arrangement for converting analog signals into digital signals, and vice versa, is described. Conversions between pulse amplitude modulated (PAM) and pulse code modulated (PCM) signals are performed. In telecommunication systems having subscriber stations equipped to transmit and receive analog signals it is necessary to carry out these conversions to facilitate PCM transmission. An analog to digital converter is thus provided at each subscriber station for converting received digital signals into analog signals and analog signals to be transmitted into digital signals; the converter utilizes the iterative principle.

Abstract: Switches of the kind formed by a controller with an actuator which is automatically restored to its "off" position at the end of a prescribed time interval and provides an indication shortly before the end of the interval. The controller may be manually energized or motor driven.

Abstract: Disclosed is a lamp-dimmer which employs a novel circuit to provide a digitally selected and phase-shifted trigger-impulse for firing a triac.

Abstract: A three-terminal current amplifier has a current gain substantially independent of the forward current gains of its component transistors. It employs a first transistor with collector-to-base feedback regulating its collector current flow to equal applied input current and a second transistor having a base emitter circuit in parallel with that of the first transistor. Output current from the collector electrode of the second transistor consequently is proportional to the input current. Means are provided for maintaining the collector potentials of the first and second transistors substantially equal to help maintain a fixed relationship between the output and input current amplitudes.

Abstract: An impact sensing detector for monitoring the operation of metal forming impact presses. The detector operates on an analog electric signal corresponding to the shock wave produced as the press ram impacts the fixed press platen and workpiece to produce a plurality of samples of the amplitude of said analog signal. These samples are digitized and compared against time corresponding standard samples previously derived from normal press operation. The detector may also be applied to other working areas of the press where waveform analysis can detect improper operation in order to avoid catastrophic failures. Predetermined differences between compared samples produce warning indicator signals which may be used to stop the press and also a fault analysis tool to help the press operator pinpoint the malfunction.

Abstract: The pilling propensity of knit fabric from polyester staple fiber can be reduced by scouring the fabric at a temperature in the range of about 160.degree. to 205.degree. F. for from about 15 to 60 minutes in a 0.3 to 1.0% aqueous caustic solution containing about 0.001 to 0.1% of a quaternary ammonium salt of the formula: ##STR1## wherein R is an alkylene radical of 2 to 3 carbon atoms, R' is H or phenyl, R" is a C.sub.12 -C.sub.18 hydrocarbon radical, x is 2 or 3, y is 0 to 3, and Z.sup.- is an anion, preferably the dimethyl sulfate quaternary ammonium salt of bis(hydroxy-tri-1,2-propyleneoxy-2-ethyl)tallowamine. After scouring, the fabric is normally rinsed, neutralized, rinsed again and dried.

Abstract: A sucrose ester product mixture containing sucrose esters, glycerides and free fatty acids, all fatty acid groups having carbon chains of 2-22 carbon atoms, has been separated into a concentrated sucrose ester fraction and a concentrated glyceride-fatty acid fraction by ultrafiltration through a polysulfone, anisotropic, microporous, membrane which normally partitions solutes of a molecular weight above 10,000 from those below a molecular weight of 10,000.

Abstract: Machine dishwashing formulations typically contain a low-foaming surfactant, a chlorine source and an alkali metal tripolyphosphate. Because of recent emphasis in removing phosphates from cleaning formulations, those skilled in the art have been interested in finding a substitute for some or all of the alkali metal tripolyphosphate in machine dishwashing formulations. Now there is provided a machine dishwashing formulation comprising (A) from 0.

Abstract: The flammability of acrylonitrile-butadiene-sytrene resin is significantly decreased by adding thereto a combination of a brominated aromatic ether and iron or chromium naphthenate.The brominated aromatic ethers which may be used are illustrated by the generalized structure: ##STR1## in which x is 2 to 5 and y is 0 to 5, provided x plus y equals at least 2. Examples of these compounds include decabromodiphenyl oxide, octabromodiphenyl oxide, hexabromodiphenyl oxide, pentabromodiphenyl oxide or tetrabromodiphenyl oxide.The ABS resins which can be treated include the terpolymer produced by polymerization of acrylonitrile, butadiene and stryene monomers, as well as terpolymers produced by grafting acrylonitrile and styrene on polybutadiene, or blends of the component polymers.

Abstract: A plurality of machine tools are linked together by a material handling system which carries workpieces from one machine tool to the next in line along a conveyor. The workpieces are clamped to pallets which are carried on conveyor carts between machine tools and which are shuttled onto the machine tools under the guidance of a material handling computer which controls all of the conveyor carts and pallets in the system. The limit switches which indicate the position of the carts and pallets are wired to the material handling computer over a novel data communication link which uses only two pairs of conductors for each machine tool and each section of the material handling system.

Abstract: Boron is removed from aqueous solutions by heating the solution to 60.degree.-100.degree. C. and adding a calcium compound such as lime to form a precipitate of calcium borate which is separated such as by filtration. Improved results are obtained by using other calcium salts such as calcium chloride in combination with lime. For solutions initially containing less than 100 ppm boron, calcium borate seed crystals are introduced.

Abstract: Photographic film bases and sensitized photographic films are produced by coating a supporting film, especially a linear polyester film such as a biaxially oriented and heat-set film of polyethylene terephthalate, with a subbing composition comprising a polymer of a vinyl halogenoester, such as vinyl mono-, di-, or trichloroacetate, which is then subjected to a surface modifying, e.g. corona discharge, treatment. Light-sensitive photographic emulsions adhere directly to the treated subbing layer without the need for an intermediate gelatin subbing layer. The vinyl halogenoester subbing polymer may be a copolymer formed with a softening temperature-lowering comonomer such as an alkyl acrylate, alkyl methacrylate, polyalkylene oxide itaconate or maleate, vinyl alkyl ether, vinyl ester, alkene, alkadiene or alkyl styrene, a suitable copolymer being 78/15/7 mole % vinyl monochloroacetate/ethyl acrylate/acrylamide.

Abstract: Bathing trunks made of an elastic and preferably plasticized cloth, formed by a single piece shaped in such a way as to reproduce, in succession, one rear half, the front portion and the remaining rear half, the longitudinal edges of said rear halves being connected to one another by means of a cross-stich seam, are described. The rear and front flaps forming the lower middle portion of the trunks are seamed together by interposing a strip provided with a plurality of transversely extending holes.

Abstract: A shift-type strapless examining robe designed to give a female patient a sorely needed psychological lift during the physical examination. The upper portion of the robe is provided with elongated openings of different lengths at the front and back thereof to afford the physician ready access to the parts of the body requiring examination. Also the lower portion is flared extensively and includes a pair of pleats at the front of the robe adjacent to the bottom thereof which forms a continuous bottom section without any openings functioning as a tent-like covering during the pelvic examination, without need for any separate additional covering sheets.

Abstract: Synthetic filaments composed of homopolymers and copolymers of poly(alkylene oxalates) are absorbable in animal tissue with minimal adverse tissue reaction. Polymers prepared by reacting a dialkyl oxalate with an alkylene diol are melt spun and drawn to obtain oriented fibers having good tensile properties and a high level of flexibility and softness. The filaments are particularly useful in the preparation of surgical prosthesis comprising woven or knitted fabrics and meshes. Other absorbable surgical devices including films and molded items may also be prepared from the disclosed polymer.

Abstract: An interconnection is provided for a human body implant having a polymeric articular surface member supported by a substantially rigid, metallic base plate. Reversely tapered apertures in the supporting base plate enclose portions of the unitary polymeric surface member, which portions protrude past the general interface of the surface member and base plate.

Abstract: A surgically implantable mammary prosthesis comprises a sac containing a filler material. The filler material is present in an amount sufficient to give the sac a relatively low profile shape and a pliant, responsive nature. The prosthesis includes a restraining means for resisting the tendancy of tissue to form the prosthesis into a sphere. The restraining means functions reactive to tissue pressure and does not substantially reduce the pliant, responsive nature of the prosthesis.

Abstract: A portable device for adapting a toilet for use as a bidet comprises a rigid conduit including a generally straight, horizontal portion sized to fit in the gap between the toilet seat and the toilet bowl rim, and a contiguous U-shaped portion for discharging a column of water upwards. The end of the horizontal conduit portion remote from the U-shaped portion is connected by a water supply line to a convenient bathroom faucet. The horizontal conduit portion is of sufficient length to permit movement of the conduit along the axis of the horizontal conduit portion in order to permit positioning of the upwardly discharging column of water over the bowl at various distances from the rim. Separate diversion means may be provided for discharging the stream of water downwardly into the toilet bowl while maintaining the U-shaped portion in its upwardly open position.

Abstract: An incinerator urinal having an annular catalyst chamber for holding heat activated catalyst particles for removing odor from the gases during incineration and an upper reservoir chamber for supplying heat activated catalyst particles to the annular chamber as the particles therein erode due to the effects of heating and cooling upon repeated use of the heater of the urinal. A sleeve extends through the upper chamber and a removable drain tube extends from the outlet of the upper bowl of the urinal through the sleeve for allowing the flow of liquid effluent to a lower pan.

Abstract: A toilet training device for children is disclosed comprising a portable stairway and a toilet seat mounted to an upper portion of the stairway for pivotable movement about a pivot axis onto the top of an auxiliary toilet bowl. Means are provided for adjusting the height of the pivot axis whereby the seat may be placed substantially level atop auxiliary toilet bowls of diverse heights.

Abstract: A convertible sofa-bed apparatus for use in a sofa or a bed configuration has hingedly interconnected and supported by frame members, and one or more pivotable arms or swing arms pivotally connected with frame members and with the seat cushion unit. The pivotable arms are rotatable between a back horizontal position wherein the apparatus is in its sofa configuration, and a frontward horizontal position wherein the apparatus is in its bed configuration. The pivotable arm or arms are preferably secured to a cross-bar rotatably mounted between end frame members to support the back cushion unit in either a vertical sofa configuration or a horizontal bed configuration, and the back support arms are preferably spring-biased to urge the arm toward such vertical position.

Abstract: A crib for an infant which is designed so to swing back and forth in the air; the crib including a basket suspended on chains which are hung from a stationary frame that is readily collapsible so to be conveniently portable.

Abstract: A brush head assembly (12) for use in a pipe cleaning machine includes a pair of end rings (26, 28). A plurality of arms (30) are pivotally connected about the second end ring (28). Cross members (44) supporting brushes (50) extend between the arms (30) and the first end ring (26). The brush head assembly (12) is adjustable to accommodate different predetermined pipe sizes by pivotal adjustment of the arms (30) and replacement of the first end ring (26).

Abstract: A building element useful in constructing plastic boat hulls and methods of making the element. The building element includes a plurality of glass fibers in the form of roving which are substantially parallel to each other, a resin binding the glass fibers together, and a plastic sheet covering one or both sides.The building element may be continuously made by passing a plurality of strands of glass fiber roving through a perforated guide plate into a trough of resin formed by the bight of a pair of rollers, feeding a plastic sheet over each roller into said bight to protect the rollers from the resin and to form a sandwich structure with the resin impregnated strands of roving being enclosed within the plastic sheets, and cutting across the plastic sheets and resin impregnated glass strands at a desired angle to form a stamp element.The building element may also be made by passing glass fiber roving through a resin pot and winding the roving around a drum which is covered by a polyethylene sheet.

Abstract: A pulling over arrangement on a pulling over and lasting machine. The pulling over arrangement comprises a pincers that is operable to grip the margin of an upper and is movable downwardly under the yieldable force of an air operated motor. A locking mechanism is provided that locks the pincers against upward movement after the pincers have been moved downwardly and a release means is provided to release the locking mechanism.

Abstract: A bottle finish wiping mechanism adapted to automatically position a plurality of bottles and subsequently wipe the finish areas of such bottles. The mechanism includes a plurality of wiper elements which are simultaneously movable into and out of contact with the bottles, and which, upon engagement therewith move cleaning pad surfaces against the finish areas of the bottle. When the cleaning pad surfaces are in engagement with the bottle the wiper elements rotate to effect cleaning.

Abstract: An improved tray assembly broadly includes a tray and a bail. The tray has a bottom and a pair of spaced side walls. An outer wall is spaced from each side wall, and is provided with an opening spaced laterally from the tray's center of gravity. Distal end portions of the bail are inserted into the openings to mount the bail for pivotal movement relative to the tray between a raised position and a lowered position. A stop member engages the bail in its raised position to prevent further pivotal movement thereof in one angular direction. An abutment member engages the bail in its lowered position to prevent further pivotal movement thereof in the opposite angular direction. If desired, the tray assembly may further include a roller having stub shafts extending axially outwardly from either end face. These stub shafts may be journalled in trunnion bearings mounted on the tray.

Abstract: A movable brake dust recovery unit that may be disposed adjacent an automotive shaft after the wheel has been removed therefrom, and thereafter subject the backing plate and associated brake shoe assemblies to a current of air to remove particled foreign material therefrom.The current of air with entrained dust and particled foreign material is directed into a confined space where the air is washed and then subjected to the action of a filter. The washed and filtered air may then be safely discharged to the ambient atmosphere without danger of contaminating the same. During the above-described operation the brake shoe assemblies and the interior of the brake drum are subjected to a rotating blast of air to separate dust and foreign material therefrom, with the separated dust and foreign material being subsequently entrained with a current of air and carried into the confined space.

Abstract: A caster assembly is provided with a housing readily mountable into rectangular, square or round tubing and securable therein. A lever operable in a horizontal plane about the swivel axis is pivotable from a first position for free swiveling and rolling of the caster, to a second position for swivel locking in the trailing position, to a third position for swivel and wheel locking. It is readily attached to a centralized control handle on a bed or other object to be supported by the caster.

Abstract: A reciprocating type tenderizer is driven by a rotary crank to enable higher operating speeds and much higher cutting edge velocities. The surface of the conveyor is maintained within 1-2 mm of the bottom dead center position of the cutting edges to provide more complete penetration and a torque limiter is provided for interrupting the conveyor movement during cutting. Novel cutting edge configurations are also provided which are suitable for a wide variety of meats.

Abstract: A tapered nozzle slightly compresses a mass of ground frozen meat to form a cohesive mass while retaining the spaghetti-like shape of the ground strands to aerate the cohesive mass. A positive displacement pump forces the meat through a grinding plate and then through the nozzle to a rotating involute knife to form patties of frozen ground meat in a continuous process.

Abstract: A tilt release catch comprises a housing member with an opening to receive a male member and the passage of belting completely therethrough, a dog adaptively mounted in the side walls of the housing, a spring of sufficient strength to keep the blade of the dog in a position to catch the blade slot of the male member when the male member is forced between the dog and the inside of the rear wall of the housing, said male member adaptively formed with a stud which depresses the dog and spring when tilted upon them. This catch desirably includes a slot for the belt to which it is attached in use.

Abstract: There is disclosed a ferrule which is made of plastic material and is initially molded in one piece as a ferrule blank consisting of a thin-walled circular cylindrical shell or sleeve, a radially inwardly-directed transverse annular flange at the inner end of the sleeve, and a part which initially extends further axially inwardly from the flange, the said part having a plurality of axially extending fingers formed by straight-walled axial slots. The axially outer ends of the fingers are joined at their roots to the outer edge of the above-mentioned annular flange. The radially outer edge of such flange is joined to the axially inner end of the sleeve by a very narrow frangible annular flange. The fingers as initially molded diverge in an axially inwardly direction from their roots. Each of the fingers adjacent its inner end is provided with a peripheral groove which terminates at its inner end in a radially outwardly projecting lip.