Abstract: A wheel unit for attachment with like units to for example a cardboard box to create a wheeled toy for a child comprises a mounting member having three generally orthogonal parts defining a corner for receiving a corner of the cardboard box, a wheel rotatably mounted on the mounting member, and means for fixing the mounting member to the cardboard box.

Abstract: The disclosure is of a device used in a hair cutting procedure, comprising a pair of comb-like parts having alternately positioned teeth which may be moved into and out of engagement to alternately hold and release the hair.

Abstract: A flat unitary composite carpet structure which can be hot molded permanently into non-planar shapes conforming to contoured surfaces such as automobile floors has an exposed textile surface to the underside of which is adhered a relatively thick layer of polyurethane foam which provides good fiberbonding, tuftbinding and sound deadening qualities to the composite carpet structure, and to the underside of the polyurethane foam layer is adhered a relatively thin layer of polyethylene which provides good shape retention qualities to the composite carpet structure and provides means for adhesively attaching an underpad to the carpet structure as the latter is hot molded to conform to the desired contoured shape.

Abstract: A method of making a wall of a container which wall is to be ruptured to gain access to the interior of the container, the method comprising forming a weakening in the wall corresponding to the path along which the wall is to be ruptured, locating the wall between mould tools which are formed as to one of them with a bead recess which will overlie the weakening and as to the other with a rupture recess in register with the bead recess, injecting material into the bead recess to displace the wall regions adjacent the path into the rupture recess to further weaken the connection between the wall parts to either side of the said path, and to form a seal therebetween and removing the wall from the tools.

Abstract: In an anti-lock brake control system for a vehicle with braked wheels, a brake pressure release pulse is produced in a manner dependent on wheel deceleration and is processed so that it cannot exceed a preset maximum length and is spaced from any other brake pressure release pulses by a preset inhibit period so that brake pressure release pulses cannot be produced above a certain maximum repetition frequency. A deceleration sensing switch produces an output pulse, and a pulse circuit is triggered by the leading edge of the output pulse to commence said brake pressure release pulse, and is reset by the lagging edge of said output pulse to terminate said brake pressure release pulse. A pulse timing circuit is also triggered by the leading edge of said output pulse and operates to terminate said brake pressure release pulse after said predetermined maximum duration if it has not been terminated already.

Abstract: A substantially circular, round lifeboat provided with a flat bottom surface and upwardly curved sides, the interior of the boat being provided with a series of concentrically arranged seats for the passengers, mostly near the bottom of the boat to provide a low center of gravity, the boat having a fiber glass hull and a fiber glass covered styrofoam interior in order that it be strong and sturdy, while being relatively light in weight, with the capability of each boat being molded in two pieces (hull section and seat and rib section) and joined together, the upper perimeter of the boat having a plurality of spaced-apart arms for supporting transparent plastic panels which extend upwardly and thus increase the free-board, the arms also providing support for a plurality of curved supporting ribs arranged in a dome-shaped fashion to support a suitable cloth material to form a complete cover for the open upper portion of the boat.

Abstract: According to one embodiment of the present invention, the oxygen gas is introduced into a horizontal, unitary and totally-closed furnace shell, and nuclear fuel to be reprocessed is charged onto an oxidation and separation plate which is horizontally disposed for vibration within the furnace shell along the axis, so that the nuclear fuel may be reprocessed by oxidation in the oxygen atmosphere while the fuel is vibrated and transported on the oxidation and separation plate and the reprocessed nuclear fuel in the form of particles may be discharged. At the same time released volatile fission products from the pulverized fuel are isolated by means of a vacuum blower. According to another embodiment of the present invention, a reduction furnace which is substantially similar in construction to the oxidation furnace described above except that a reducing gas is supplied by an independent source.

Abstract: A disc brake having a caliper member which straddles a minor portion of the periphery of a rotatable disc and which is displaceable with respect to a fixed torque-taking member of the brake for applying friction elements to opposite sides of the disc. The caliper member is slidably mounted on the torque member by means of a pin secured to one of the members and slidable in a recess in the other of the members. The torque member also slidably carries the friction elements and restrains the elements from movement radially of the disc. In order to prevent the caliper member from pivoting about the axis of the pin, the caliper member is held by at least one of the friction elements, this being effected by an interengaging projection and recess, the recess opening in a generally radial direction relative to the axis of the pin.

Abstract: A pendulum responsive to excessive deceleration operates a valve which creates a pressure differential across a pressure responsive member to close an inlet valve to the brake chamber and expand an outlet chamber to thereby reduce the rear brake pressure. The invention provides retaining mechanism for preventing the pendulum from swinging during non-braking periods and for returning the pendulum to its inoperative position upon a reduction of inlet pressure. A piston responsive to pressure at the inlet moves the retaining mechanism to a position wherein the inertia member is free to swing during normal brake applications.

Abstract: In a control valve assembly for vehicle hydraulic braking systems pressurization of a distributor chamber in a housing is controlled by a valve operating mechanism. The valve operating mechanism comprises a piston working in the distributor chamber, a recuperation port in the wall of the housing for connection to a reservoir for fluid and communicating with the chamber on one side of the piston, an axial bore through the piston providing communication between the recuperation port and an inlet passage for connection to a source of high pressure fluid, an axially movable valve member for alternate engagement with first and second axially spaced seatings, the first seating comprising a seating surrounding the opening in the piston and the second seating leading to the inlet passage, and a spring for urging the valve member normally into engagement with the second seating with the valve member spaced from the first seating.

Abstract: A device is disclosed for inserting a lance into a vertical furnace, especially a blast furnace, so as to sample gases and measure the temperatures or pressures thereof, thereby obtaining the accurate information of operating conditions in the furnace.

Abstract: In an hydraulic power system for operating a vehicle levelling system and braking system, an accumulator supplies both the levelling system and the braking system. The accumulator is connected indirectly to the braking system through a pressure limiting device, which disconnects the braking system from the accumulator when a predetermined pressure is reached.

Abstract: A machine suitable for use in removing seams from cup handles comprises means in the form of a turntable for carrying a plurality of sponges, viz. four, step-by-step successively through a series of operating stations at two of which smoothing operations are preformed on the handles and at two others of which the sponges are cleaned automatically to avoid such build up of clay material on them as will interfere with the satisfactory operation of the machine. Each sponge of the machine has a passage of suitably profiled cross-section through which each handle is caused to traverse first one way and then the other in the operation of the machine.

Abstract: Apparatus for disentangling workpieces is described which consists of a container into which the entangled workpieces are placed, a series of air jets located in the base of the container, and an outlet assembly consisting of a pair of overlapping relatively slidable comb-shaped plates defining a series of slots of adjustable width. An electropneumatic circuit is arranged periodically to widen the slots to release any trapped workpieces, and to shut off the blowing air immediately prior to widening of the slots. A circulatory flow of the workpieces is established in the container and the disentangling is brought about primarily by the brushing action of the workpieces against the slots.

Abstract: In mining and quarrying an explosive charge is placed in a shot hole, and the subsequent explosion is contained by stemming. The invention provides stemming made from stemming plugs, each consisting of a self-supporting body made principally of sand bound with the aid of sodium silicate. The plugs are wetted, preferably by immersion in water, and inserted into the shot hole where they are crushed or disintegrated to form the stemming.

Abstract: A variable-capacity radial turbine is provided with a gas flow rate control plate which may throttle a restriction of a scroll-shaped channel of a turbine casing, through which flows the exhaust gases into a turbine impeller, so that the impeller may rotate substantially at a constant speed and consequently the intake pressure may be maintained constant over a predetermined engine speed range.

Abstract: A cutter tool of the kind having a blade body with teeth which are provided with hard material tips is so machined that the side faces of the tips are dished or otherwise concavely contoured.The machining involves mounting the blade body on a worktable and first machining the side faces on one side of the tips to produce a reference plane including the ends of the cutting edges of the tip and using this plane as a reference plane for subsequent machining of the other side faces and the surfaces of the blade body.

Abstract: An hydro-pneumatic suspension assembly for vehicles comprises a pressure chamber in a combination with an hydraulic suspension unit of the self-levelling type. The unit incorporates a spool valve for maintaining the length of the unit at a predetermined value irrespective of the load. The spool valve is responsive to the position of a piston rod which carries the piston of the unit, and a damper, comprising a restricted passage, is incorporated to delay the response of the spool valve to movement of an assembly comprising the piston and the piston rod.

Abstract: In a fluid-pressure operated anti-skid braking system operation of a brake applying relay valve is controlled by application pressure in an application chamber. A memory chamber is connected to the application chamber through a one-way valve and a restrictor permits pressure in the memory chamber to decay into the application chamber when the pressure in the application chamber reduces at a skid point. Application pressure is supplied to the application chamber through a normally open latch valve. Re-application of the brakes following a skid is controlled by closure of the latch valve which permits only a restricted flow of application pressure into the application chamber. This is sufficient to re-apply the brakes rapidly in a first stage until the pressure in the application chamber becomes equal to that of the decayed pressure in the memory chamber.

Abstract: A disc brake assembly includes one or more rotatable friction discs which are slidably keyed to a second portion of a two part shaft assembly and the second portion surrounds and is rotatable relative to the first portion which transmits drive directly to a wheel and drives the second portion through a reduction gear train so that the second portion can rotate at a greater speed than the first.