Abstract: A hydrofoil blade support member comprising a longitudinal extending hydrofoil body having a mounting element attached thereto. Hydrofoil blades are attached to the mounting element by a mounting device which allows the blades to extend in such longitudinal direction and further allows for spacing of such blades relative to each other in a variably selective dimension measured transverse to such longitudinal dimension. Spacing can be manual, semi-automatic or fully automatic.

Abstract: A portable blade sharpening device having a vise to grip the blade, a guide bracket attached to the vise and a tool having a guide rod cooperating with the guide bracket to bevel the blade.

Abstract: The damper device of the invention comprises a paddle wheel (2) adapted to allow, by its rotation, the air streaming through the duct (1) wherein the device is mounted. A thermostat (14) senses the temperature in an area immediately upstream the paddle wheel and is adapted to affect a paddle wheel braking device in such a manner that the braking device is caused to brake the paddle wheel to a lesser extent in proportion to the rise of temperature in said area.

Abstract: A portable chamber for enclosing a portion of the body for treatment with oxygen or other gas at pressures slightly above atmospheric and the control circuits for operating the chamber are disclosed. In its basic configuration, the chamber of the invention is designed to enclose a portion of the body, such as a leg or arm, but can be enlarged to enclose the entire body, except the head of the patient. In its basic design, the chamber of this invention is constructed in two parts that mate to form the chamber. When mated, one end of the chamber is closed and the other end is open to receive the part of the body being treated. The open end contains a sleeve that encircles the body part being treated to form an air tight seal. A gasket arrangement is provided to seal the two parts when mated. The control circuits or elements are fluidic elements. These fluidic elements are housed in a control box and coupled to the chamber by means of appropriate couplers mounted on the closed end of the chamber.

Abstract: The present invention briefly refers to a window squeegee for use in washing windows and similar plane surfaces. It comprises a handle (1) having an attachment portion (3) for a scraper blade (4), the scraper blade being detachable secured to the attachment portion (3). The scraper blade (4) is constituted by a rubber blade (6) which is clamped between the legs of a metal strip (5) having substantially U-shaped cross-section. The attachment portion (3) is suitably comprising two protruding shoulders (9) adapted to contact one of the legs of the scraper blade strip (5) and at least one tongue (10) adapted to contact the other leg of the scraper blade strip (5). The tongue or tongues are provided with a ridge (11) protruding towards the scraper blade (4) and receiving in a notch (8) in the other leg of the scraper blade strip (5).

Abstract: An ejector device having an adjustment characteristic which is stepless variable in dependence of the negative pressure generated by the ejector device. The ejector device comprises a portion (16) for connection with a source of positive pressure which delivers the work pressure to the ejector device (1) to give rise to the ejector action. A portion (2) includes inlet (18) for the member which is intended to use the negative pressure created by ejector device (1). The two portions (16, 2) of the ejector device (1) are stepless movable in relation to each other, and in the space therebetween is an adjustment plate (13) for controlling the suction action obtained by the ejector device (1). The outlet slit (17) of the ejector device (1) is located between the plate (13) and the portion intended for connection with the positive pressure source. The adjustment plate (13) is connected to a stem (10) which is movable in relation to the portion (2) for connection with the negative pressure member.

Abstract: The present invention relates briefly to an improved multi-ejector having at least one set of ejector nozzles (12, 13, 14, 15) arranged successively for evacuating of successively arranged chambers (5, 6, 7) which chambers are in communication with a vacuum collecting compartment (16) through ports (18, 19, 20) provided with valves. At least one additional set of nozzles (24, 25) evacuates a chamber (4) in direct communication with the vacuum collecting chamber (16) and the outlet therefrom is arranged in connection with the chamber (5) in which the lowest negative pressure is existing when the first mentioned set of ejector nozzles (12, 13, 14, 15) is operating.

Abstract: A measuring device for measuring a length of picture frame material which device includes a plurality of elongated stepped surfaces at least two of which are substantially parallel and offset relative to each other. At least two reference marks are provided to allow determination of the cutting length of the inside or rabbet side edge of the framing material.

Abstract: In a refiner for treating cellulose pulp or similar material of the type comprising two intermeshing rotary screws operating in a housing having a material inlet and a material outlet, the surface of each screw comprises a feeding thread section merging into a feed-resisting surface section, the outlet being provided in a side-wall of the housing near the zone where the feeding thread sections on both screws end and the feed-reversing surface sections begin. The outlet opens into an outwardly flaring collar having a plane mouth opening oblique in relation to the direction of material discharge through the material outlet. The mouth opening cooperates with a closure element to restrict the outlet area to control working pressure conditions within the housing.

Abstract: A combination suture cutting and removing instrument comprising an elongate handle with a head portion extending longitudinally outward from one end thereof. The head portion is curved in a generally crescent configuration with a flat end. A suture cutter blade is positioned across the concave portion of the head and terminates slightly before the flat end which is provided with a "V" shaped notch whereby the flat end may be slipped under the suture to bring the cutter into cutting engagement therewith. After the suture is cut, the "V" shaped notch is positioned around the suture beneath the knot so that upward motion will engage the knot and remove the suture.

Abstract: Apparatus for use in playing a hand swat ball game, the apparatus including four upstanding end court supports forming the four corners of a rectangular playing court where the length is twice the width. A pair of upstanding mid court supports divides the playing court into two equal and square playing areas. A backboard is affixed to the tops of the six supports and is generally coextensive therewith. A ricochet bar extends between each pair of end and mid court supports. An end ricochet bar extends between each pair of end court supports. A center ricochet bar extends between the pair of mid court supports. All ricochet bars are equispaced downwardly from the backboard. With at least one player in each playing area, a player in a first play area serves the ball by striking it by hand to drive the ball through a fair play zone into the second play area. The fair play zone is defined by the area surrounded by the center ricochet bar, the backboard and contiguous portions of the mid court supports.

Abstract: A fishing bobber which may be readily and adjustably secured to a fishing line, said bobber comprising a buoyant body having a top and a bottom, a bearing extending from the top and the bottom of the body, each bearing having a vertical slot therein, a resilient member positioned in a cavity in the bearing intersecting the bearing vertical slot, a keeper rotatably carried on each bearing, the keeper and body each having a slot for alignment with that in the bearings, and a spring lock on each keeper whereby upon insertion of a line in the aligned slots, rotation of each keeper will cause the spring lock to force the line into engagement with the resilient member in each bearing to retain the line and the bobber in fixed relative position.

Abstract: An apparatus for dispensing material from a container comprising a plate having an aperture therein through which material is caused to flow out of the container when the plate is caused to move vertically within the container. A scraper member is spaced from and coupled to such plate to engage the inside walls of such container to scrape material from the walls as the plate moves vertically relative to the container. A space is formed between the scraper member and the plate to form a cavity which communicates with the aperture and which includes a material entering opening, the level of material in the cavity being controlled during operation of the apparatus.

Abstract: The present invention relates to a device for determining the level of the melt in a ladle or the like, which device comprises a lance (20) with a tubular end adapted to be submerged in the melt. At least one non-contact sensor (1) is mounted in the tubular end of the lance (20) straight opposite to an aperture (24) through the wall of the tubular end. The aperture (24) or the apertures are covered by a sleeve (27) of a heat resistant, electricly non-conducting material. The sensor or the sensors are electrically connected to operational equipment for signals coming from the sensor or the sensors.

Abstract: A flashlight holder is provided for attachment to a pistol, the holder positions the flashlight on the pistol whereby the flashlight may be horizontally and vertically adjusted so that its light beam will fall directly upon the object at which the gun is aimed.

Abstract: An integrally fabricated heater follower plate primarily for use with hot melt dispensing apparatus is disclosed. The heater follower plate is fabricated from a solid circular disk of heat conducting material. The disk is machined to form a plurality of fins across the bottom face of the disk. A hole is cut through the center of the disk and a plurality of holes are cut into the top face of the disk. A separate cartridge-type heating element is placed into each one of the holes cut into the top face of the disk.

Abstract: Method and apparatus for producing intense, consistent swirl and air-fuel-E.G.R.-vorticity charge uniformity without any net penalty in engine power, volumetric efficiency, or pumping work. Method and apparatus permit optimal swirl and turbulence for flame stability and fuel economy throughout the R.P.M.-load phase space of engine operation. Method and apparatus require no substantial changes in combustion chamber shape or basic engine structure. For spark fired engines, the method and apparatus permits operation at air-fuel-E.G.R.-intake manifold vacuum combinations having excellent fuel consumption characteristics combined with very low emissions of CO, HC, and NO. For diesel engines, the method and apparatus permits optimized swirl without the volumetric efficiency and pumping work penalties accepted with present art swirl inducing techniques.

Abstract: Operational control system for lift and elevator machinery adapted for electrodynamic braking, said operational control system being adapted to be connected to the machinery of existing lift or elevator equipment. The operational control system is designed for one-speed A.C. synchronous motors of the short-circuit type forming part of operational control units provided with a simple mechanical brake. The operational control system improves the stop-plane exactitude and reduces brake wear. In the operational control system electrodynamic and mechanical braking is combined, the control being performed via a reference voltage formed from an output signal received from a speed-sensing member.