Abstract: Vapor degreasing apparatus comprising a tank having in its lower part a heatable reservoir for a solvent for fats, oils, lubricants or the like, and having, above said reservoir, a vapor space adapted for introducing therein metal articles or machine parts to be degreased. Cooling water piping is provided in the upper part of the tank, said piping comprising a section which functions as a heat exchanger for incoming heat released during the vapor-liquid conversion of the solvent while forming a vapor escape barrier for retaining, through condensation, the solvent vapor, said piping also comprising a section which functions as a heat exchanger for outgoing heat to the ambient air.

Abstract: A loom comprising two sheets of warp threads which are momentarily held in diverging planes to form a weaving shed with a conveying tunnel for wefts, a blowing nozzle arranged in position at one side of such shed to propel wefts through such shed by means of a fluid discharged from said nozzle, and a main tensioning device arranged in position at the other side of such shed, operating with a fluid jet, to tension inserted wefts during the beating up movement of the loom. The jet is so arranged that it issues substantially, transversely, and freely across the conveying tunnel to suck in the weft and is caught by a passage disposed in alignment with said jet. An auxiliary tensioning device is provided and is constructed similarly to the main tensioning device. The auxiliary device is disposed at the side of the main device. The main and auxiliary devices are used for normal and startup operations, respectively, and each has gas or air pressure supply means for normal or startup operation.

Abstract: A vertical reaction vessel has a plurality of funnel-like constrictions dividing the vessel into individual chambers, at least one inlet for introducing fine material into the top of the uppermost of such chambers, and an opening at the bottom of the lowermost of such chambers for withdrawing heated fine material, and for introducing hot gas to be exhausted from the uppermost chamber. Guide elements for the fine material extend downward along the inner surface of at least one of the funnel-like constrictions.

Abstract: A loom comprising a continuously operable weft yarn supply mechanism and an intermittently operable weft inserting mechanism. A tubular storage device is provided having a substantially constant shape in cross-section from one end to the other and storing weft yarn between said mechanisms, the stored yarn being in the shape of a loop having substantially parallel legs. The storage tube is in a substantially upright position and has a common entrance and exit at its lower end, said loop opening downwardly toward said lower storage device end. A suction nozzle is connected to the upper end of the storage device, and a blowing nozzle is adjacent said lower storage device end to propel weft yarn upwardly in a floating condition into the storage device, the suction nozzle helping to keep the weft yarn in such floating condition and sucking fluff away from the lower end of the storage device and discharging it.

Abstract: A technique is provided for employing an aqueous solution to treat a cellulosic or other substrate with a water-insoluble preservative such as a polychlorophenol and the like. The treatment solution is formed of water, a soluble polychlorophenate, and a suitable acid-former which, after a predetermined delay interval sufficient to allow adequate treatment with the polychlorophenate, progressively effects in in situ precipitation of the insoluble polychlorophenol on the substrate to be protected. The extent of the delay interval, as well as the extent of the precipitation time, may be regulated as a function of temperature, the excess alkalinity of the treatment solution, and the particular acid-former employed.

Abstract: A seat slide comprises a guide channel and a slide part which is attached to the seat and slides within the channel. To afford free sliding movement considerable play is provided between the slide part and the guide channel but to avoid rattle particularly when the seat is not occupied, resiliently deformable plastics pads are located in the clearance gaps between the channel and the slide part to take up the play. These plastics pads not only take up the play but also facilitate sliding movement in that they can be made of a material having a low coefficient of friction.

Abstract: A flexible cap incorporating electrodes of an electroencephalographic apparatus is firmly held in place on a patient's head without inducing a muscular reaction by a pair of criss cross elastic straps connecting the cap to a band encircling the patient's body, the criss cross straps being attached to the cap so that the resultant force of the cap is directed approximately through the joint between the patient's skull and spinal column.

Abstract: This invention relates to an oil replenishing cartridge which is adapted for use in the air-eliminating operation from automobile hydraulic systems such as hydraulic brake or hydraulic clutch with one operator, and which is capable, upon being simply placed on a reserve tank for said hydraulic system, of automatically replenishing oil to a given level in said reserve tank.

Abstract: A pulsato generating system which is composed of a sequentially phase inverting signal generator for producing first, second and third sequentially phase inverting signals based on an input musical signal, a phase rotating signal generator for producing first and second phase rotating signals based on the first, second and third sequentially phase inverting signals and first and second speakers respectively supplied with the first and second phase rotating signals.Another pulsato generating system is disclosed which is composed of the abovesaid sequentially phase inverting signal generator and first, second and third speakers respectively supplied with the first, second and third sequentially phase inverting signals derived from the sequentially phase inverting signal generator.

Abstract: A method of producing briquettes comprising cold pressing at relatively low pressures of a homogeneous mixture consisting of at least a fibrous material which acts as both a filler and a binder together with metallic particles such as iron borings or other machine shop waste. The fibrous material is preferably paper in pulp form. The composition may include cement and/or additional material in pulverant form or dust form selected from coke, coal, limestone and fluospar.

Abstract: The invention provides a tool for stripping the sheath or covering from a wire or cable, comprising a pair of gripping jaws for holding the sheath and a pair of cutting jaws for cutting the sheath, means for closing the pairs together and then for separating the pairs so as to displace the cut portion relative to the gripped portion, in which the displacing means includes a lost motion coupling so that an initial portion of the displacement is used for jaw closing but without effecting relative displacement, and with the jaw closing being effected by a cam which is arranged to provide for jaw opening at the end of the displacement movement.

Abstract: A cowl assembly for use in association with the shearing drum of a mining machine has an arcuate cowl member and a cowl arm connected to the cowl member, the cowl arm having an annular mounting member at the end thereof remote from said cowl member to enable mounting of the cowl assembly in association with the shearing drum for angular movement about the axis of the drum, a plurality of peg members being arranged circumferentially on said mounting member and projecting therefrom for engagement with a sprocket wheel forming part of a power drive mechanism adapted to be supported on the mining machine. The mounting member is preferably formed in arcuate halves interconnected by bolts disposed substantially tangentially to the mounting member and at diametrically opposite locations.

Abstract: There are two superimposed pressure vessels, the upper of which has a closable material inlet connected to a source of fine material and has a lower end in the form of a cone with a bottom outlet. The lower pressure vessel has a material inlet which is connected through a valve to the bottom outlet of said cone, and has a pneumatic feed conduit connected to its lower portion as a material outlet. A conduit is connected to both vessels for equalizing the pressure therein after the inlet of the upper vessel has been closed and before said valve is opened. A plurality of nozzles are uniformly distributed throughout said cone and are connected to a source of gas under pressure for aerating material in said cone, each of said nozzles having an inside diameter between 0.2 and 0.6 mm.

Abstract: An electrically heatable floor covering comprising a carpet of woven fibers, wherein an electrical heating element is enclosed in the carpet body, which is made of a straight thin copper wire having a reinforcing coating of polytetrafluoroethylene which causes the wire to withstand impressions produced by footsteps and by heavy furniture without being broken.

Abstract: An electromagnetic vibrator that is resonant at a frequency below one third of the frequency of an alternating current power source is driven by a linear electromagnetic motor, the airgap of which varies with the vibration of the vibrator, in which motor current flow from the power source is established during the first half cycle of the power line voltage that occurs after the airgap is a maximum, is maintained independently of the power source during at least a major portion of the next half cycle, and is reduced to zero during the next following half cycle of power source voltage. Preferably two electromagnetic motors are employed, one for each direction of relative motion between the vibrator parts.

Abstract: An internal grinder for the cylindrical internal surfaces of machine parts that features the provision of a flexible wire secured to an end of the main shaft, a pair of holding elements erected centrally of a base member in opposition to each other, spring means erected at the opposed outer edges of said base member, pressing elements secured to the ends of said spring means and arranged parallel to the axis of said shaft, and a substantially M-shaped spring having its pressing portions inserted in the insides of said pressing elements and having its fixing portion fixed to an external edge of the grinding member such as sand paper. This device allows grinding of a cylinder in its axial direction even if other machine parts exist in such direction. It also allows continued use of the grinder in the event of wear of the grinding member by merely replacing such worn member.

Abstract: A mill comprises a shaft mounted in a pair of bearings located at one end of the shaft, and a wall having an opening through which the shaft extends. A horizontal-flow container for the charge is removably mounted at one end in cantilever fashion upon one side of said wall and has a screened outlet at its other end. A tubular inlet housing is mounted on the other side of said wall, surrounding a portion of the shaft between said wall and said bearings, and has a seal through which the shaft enters the inlet housing. A feed screw is mounted on said portion of the shaft. Another portion of the shaft, extending within the container, is of greater diameter than said opening and is closely spaced from said wall to provide a narrow gap through which material passes from the inlet housing into the container. The shaft is hollow and has means for circulating a cooling fluid therethrough, and a shroud holds a cooling fluid in contact with the exterior of said seal.

Abstract: A powder-dispensing brush head comprises a body having first and second angularly related faces, a plurality of bristles distributed over the first face and a passageway extending through the body from an inlet at the second face towards an outlet at the first face of the body. The passageway, as considered from its inlet to its outlet is unidirectional and inclined towards the first face, and the body is provided with at least one coupling formation for connection of the brush head to a flexible-walled container with the mouth of the latter in registry with the inlet. The passageway is smoothly tapered over a major part of its length from a larger diameter adjacent its inlet to a smaller diameter adjacent its outlet.

Abstract: A car seat frame has the backrest hinged to the seat cushion frame and to the vehicle floor, so that when tipped forwardly the seat cushion frame is slid forwardly and vice versa. The front of the cushion frame runs in a guide including staggered upper and lower elements so that lifting of the rear of the cushion frame at the beginning of the movement allows the frame to run freely through the guide, and so that lowering at the end of the return movement causes the guide to snub the frame and prevent rattle.

Abstract: A fastener for releasably securing a pram wheel to its axle and similar applications includes a groove in the axle and a post extending tangentially of the axle and which is resilient to deflect about its root so that it can snap engage in the groove. The post is carried in a cap secured to the wheel. A pin is located parallel to the axle in the cap to displace the post to enable the parts to be separated when required.