The present invention

A contact for an electrical switch, more especially a vacuum switch, having a cup-shaped body member with inclined slots in at least the side walls, and a disc having a central boss which provides the contact making surface mounted on the rim of the body member. Such a contact causes the current to move in a manner which generates both axial and transverse magnetic fields tending both to diffuse t...

A contact for an electrical switch, more especially a vacuum switch, comprises a generally circular conducting member having slots extending from its periphery towards its centre, and a ring of high temperature resistant material covering at least part of the exposed edges of the slots.

The cutting appliance of the present invention features a pivotally connected upper (3) and lower casing (2), each having a pair of parallel sidewalls which, in closed position, contact the sidewalls of the other casing and clamp a band, strip, or web (18) or surgical dressing or the like on each side of a desired cutting line, a cutter blade (12) extending longitudinally within the lower casing a...

An arrangement for feeding material to the open end of a combustor including a vertical chute leading to a doorway to the combustor which is normally closed by a biased door, and a stepped ram reciprocating at the bottom of the chute for feeding material through the door and into the combustor.

An air propelled toy comprises an inflatable balloon (1) the opening (2) of which is secured over a flanged end (4) of a tubular mouthpiece (3), the mouthpiece having a radial circular flange (5) spaced equally from the ends of the mouthpiece and of outside diameter of not less than 32 mm. This dimension is chosen so that the mouthpiece cannot be sucked into a child's mouth and become lodged in it...

A proportional directional control valve in combination with a pressure compensator flow rate control valve opening towards a reservoir and a pressure unloading valve in the load- pressure- carrying control line for the compensator valve are provided to actuate the telescopic cylinder of a tipper truck. The valve device is connected to a pump of constant displacement. The operating speed of the te...

A proportional directional control valve in combination with a pressure compensator flow rate control valve opening towards a reservoir and a pressure unloading valve in the load- pressure- carrying control line for the compensator valve are provided to actuate the telescopic cylinder of a tipper truck. The valve device is connected to a pump of constant displacement. The operating speed of the te...

To adjust the stroke of a radial piston machine with a variable displacement volume, a piston with a large diameter is provided for one direction of adjustment and this is surrounded by four pistons with a small diameter for the other direction of stroke adjustment. By means of this arrangement, it is possible significantly to increase the adjustment stroke. The driving coupling between the cylind...

In a hand pump for priming a fuel feed pump for an internal combustion engine, the sealing effect of a piston seal (29) is improved by a guide bushing (25) which is provided in addition to a guide collar (41), disposed on an upper part of a piston (3). The guide bushing (25) is mounted on the end of the piston (3) facing a working chamber (28), and increases the guide length of the piston (3) and,...

To achieve a good rinsing result, the lye absorbed by the laundry, the so-called bound liquor, must be exchanged 100 % with the rinsing water. Known washing machines use often a needlessly large amount of rinsing water for this purpose. The method according to the invention ensures that the quantity of rinsing water is always matched to the laundry loading quantity and its absorbency. An appliance...

A frequency-modulated transceiver in which modulation caused by the transmitter part of the transceiver in the output signal of the receiver i.f.-mixer is decreased. The transmitter comprises a frequency-modulated high-frequency oscillator (1) having a modulation input and an output, and the receiver comprises in a cascade: a high-frequency mixer (13) having a local oscillator input functionally c...

A frequency-modulated transceiver in which modulation caused by the transmitter part of the transceiver in the output signal of the receiver i.f.-mixer is decreased. The transmitter comprises a frequency-modulated high-frequency oscillator (1) having a modulation input and an output, and the receiver comprises in a cascade: a high-frequency mixer (9) having a local oscillator input functionally co...

The present invention provides a device for transferring replacement fluid from a first to a second fluid system and for transferring overflow fluid from the second fluid system to the first fluid system. Replacement and overflow fluid is transferred between systems by first and second flow paths respectively, each flow path including a filter to prevent particle contamination between the systems.

A drive-slip control device (ASR) for a road vehicle also equipped with an anti-lock system (ABS) that works on the return-flow principle. The ASR works on the principle of decelerating a vehicle wheel tending to spin by subjecting its wheel brake to pressure. During the drive-slip control mode, the return pump of the ABS, has its inlet supply take place via a precharging pump as an auxiliary-pres...

A drive-slip braking control device (ASR) for a road vehicle equipped with an anti-lock system (ABS) and having a hydraulic dual-circuit brake system, in which, on the brake circuit (II) of the driven vehicle wheels, the ABS works on the return-flow principle and the ASR on the principle of decelerating a vehicle wheel tending to spin by subjecting its wheel brake to pressure from an auxiliary-pre...

In a drive-slip control device on a road vehicle equipped with an anti-lock system and having a hydraulic dual-circuit brake system, in which at least on the brake circuit of the driven vehicle wheels, the ABS works on the return-flow principle and the ASR on the principle of decelerating a vehicle wheel tending to spin by subjecting its wheel brake to pressure. For the drive-slip control mode, a ...

PCT No. PCT/AU85/00287 Sec. 371 Date Jul. 21, 1986 Sec. 102(e) Date Jul. 21, 1986 PCT Filed Nov. 21, 1985 PCT Pub. No. WO86/03135 PCT Pub. Date Jun. 5, 1986.A hydrophobic semi-permeable membrane process (e.g., using hydrophobic microporous hollow fibers) for the concentration of a dilute solution of low osmotic pressure by osmotic distillation (also known as membrane distillation or membrane evapo...

A composite valve plate for use in a plate-type non-return valve comprises an outer valve closure member (8) having a central aperture (9) and a planar guide member (1) locatable in said central aperture (9) and being capable or providing frictionless guidance of the valve closure member (8), with said guide member (1) being locatable within said aperture (9) by location means (4, 5, 6).