A compressed air supplying device has an air compressor, a dryer connected to an outlet of the air compressor, an air reservoir connected to an outlet of the dryer and connectable to pneumatic equipment, a valve for selectively placing piping between the air compressor and the dryer in communication with the atmosphere, and a control device for controlling the operation of the air compressor and the valve and for detecting the pressure in the air reservoir and detecting the accumulated operation...

In a bandwidth compressed transmission system in which a frequency band of a television signal of 2:1 interlace system is compressed, on an encoder side, by interfield offset subsampling at a first sampling frequency corresponding to a substantially upper limit frequency of the television signal and, after an output signal thus subsampled is applied to a LPF for passing a signal component having an aliased portion resulting from the interfield offset subsampling and having a cut-off frequency su...

A compressed air rotary motor includes high and low pressure rotors having peripheral helicoidal threads. The rotors are sandwiched between a circular plate and end wall while an intermediate wall separates the two rotors. Fluid passageways in the plate and two walls control the flow of compressed air initially to a single gap between two threads of the high pressure rotor and thence to at least two gaps between a plurality of adjacent threads of the low pressure rotor following which air is del...

A geared compression air starter having a lead rotor, a driven rotor and a hollow shaft. A driven trunnion of the driven rotor engages with external teeth thereof into external teeth of the hollow shaft to connect the driven rotor with the hollow shaft. A freewheeling unit couples the hollow shaft with an axially displaceable engagement shaft so that the central axes of the engagement and of the hollow shaft can be positioned coaxially with respect to a central axis of the lead rotor. An engagem...

A dehumidifier for compressed gas is disclosed which comprises a heat exchanger pipe, a sprinkler over the heat exchanger pipe, a sump for receiving sprinkled water, a water-supplying pipe for recycling the water from the sump to the sprinkler, an air-intake arranged at a level between the heat exchanger pipe and the sump, a forced exhaust system including a rotating fan, and a gas-liquid separator for removing moisture, oil and other floating matters from the compressed gas.

A compressed gas switch, preferably provided for switching medium voltages, has a casing filled with insulating gas. Two contacts are located relative to one another along an axis in this casing, which contacts, in the switched-on position, have their free ends led into a hot volume. The switch has a small installation length in the direction of the axis defining the movement of the contacts and simultaneously exhibits small contact consumption. This is achieved by the switch having current supp...

Method and apparatus for monitoring the time rate of successive events the rate of occurrence of which can vary over a wide range by: detecting the successive events during a succession of consecutive time intervals of equal duration; producing successive counts each representing the number of events occurring during each interval in which at least one event occurs; producing successive counts each representing the number of intervals between the end of a respective interval in which at least on...

An air compressor system of the type having fluid-treating components including a compressor and downstream coolers for hot fluids emanating from the compressor, characterized by a substantially airtight cabinet enclosing the fluid-treating components and including air outlets and an ambient air inlet, a device over the air inlet to clean incoming ambient air, and wherein the coolers are of the air-cooled type. In preferred embodiments, a device at the inlet, preferably a water-scrubbing air cle...

An appliance for attachment to a compressed air line leading from an air compressor, the appliance including a container containing an interchangeable waste dryer made of remnant fabrics and through which the air passes so that moisture from the air is absorbed thereby, and the appliance, in another model thereof, additionally including a water cooled tubes so to cool the passing air and condense the moisture therefrom.

A powdered compressed cosmetic material comprising a hydroxypropyl-etherified glycolipid ester represented by the general formula; ##STR1## wherein R.sup.1 represents a methyl group or a hydrogen atom, R.sup.2 represents a saturated or unsaturated hydrocarbon group having carbon atoms of 11 to 15 when R.sup.1 is a methyl group, or R.sup.2 represents a saturated or unsaturated hydrocarbon group having carbon atoms of 12 to 16 when R.sup.1 is a hydrogen atom, A represents the group ##STR2## R.sup....