A method and a device for cutting gas concrete employing cutting wires (35), whereby, in order to decrease shocks and vibrations, and in order to cut blocks of gas concrete more rapidly and with a finer surface structure, said wires (35) are guided and driven separately from one another in such a way that they are guided in their lengthwise direction relative to a cutting frame (14) and that they ...

A system for controlling an electro-magnetic clutch of an internal combustion engine mounted on a vehicle, which has a drive member secured to a crankshaft of the internal combustion engine, magnetizing coil provided in the drive member, a driven member adjacent to the drive member, and a transmission secured to the driven member having multi-stage change gears. A car speed sensor is provided for ...

There is here provided butt-welded cans made of steel plates having a carbon concentration of 0.02 to 0.09% by weight, the aforesaid butt-welded cans being characterized in that a coating film for preventing the adhesion of melted metal particles is applied to at least the inner surface of the weld portion and its vicinity of each can, and a carbon concentration index I of the weld portion satisfi...

A cutting apparatus for cutting objects into minute pieces with high exactitude and high precision comprises, as an integral unit, a pair of cutter shafts disposed substantially in parallel to each other, a motor attached to one of the cutter shafts, gears for rotating the other cutter shaft in a direction opposite to the direction in which the one cutter shaft is rotated, a plurality of substanti...

A control system for a continuously variable transmission has a line pressure control valve having ports and a spool for controlling the line pressure of oil supplied to a cylinder of a pulley device to change the transmission ratio. The line pressure control valve has chambers. When the transmission ratio reaches a maximum value after disengagement of a clutch, a line pressure reducing signal gen...

An automated chemistry-testing system for analyzing serum samples in which a controlled, constant intensity, monochromatic light beam of substantially any desired wavelength can be selectively directed through any one of a plurality of test solutions in a spectrophotometer. The system comprises a monosource (11) to provide substantially monochromatic light of different wavelengths, an intensity mo...

A control system for an infinitely variable transmission has a transmission ratio control valve having a spool for controlling oil supplied to a cylinder of a drive pulley to change the transmission ratio. The deceleration rate of the motor vehicle contianing the system is detected to produce a deceleration signal. By controlling the oil pressure supplied to the transmission ratio control valve in...

A system for controlling a clutch current of an electromagnetic clutch of a vehicle when the vehicle accelerates downhill. The clutch is normally engaged when vehicle speed is higher than a first reference speed. When the vehicle accelerates downhill at a speed higher than a second reference speed which is lower than the first reference speed, the clutch is engaged to provide an engine braking eff...

The utility model discloses a heat collector which relates to a heat collecting and heat exchange system by which solar radiation energy is used for heating air, comprising a box chamber, a heat insulating layer, cover glass, an air inlet, an air outlet, an absorber, etc. The utility model is characterized in that metal wools remained by machining of metal are adopted by the absorber which is in t...

An umbrella has a frame with a longitudinal axis and a cover overlies the frame. A headband 30 is provided for securing the frame to a users head and an extendable member 16 having a portion 12 thereof which is laterally disposed from the longitudinal axis is provided for eccentric support on the head of a user. Preferably, the umbrella additionally has a forwardly extending portion supported by r...

To protect brake fluid against evaporation under extreme braking conditions, the brake fluid contained in the wheel brake cylinders is kept at a minimum pressure between 5 and 10 bar even after completion of a braking operation, thereby increasing the boiling point of the brake fluid. The wheel brake cylinders are designed as stepped cylinders with a counterpressure space, into which a likewise co...

An apparatus for measuring earth formation parameters by transmitting and receiving electromagnetic signals by antennas (19, 21, 22) disposed in recesses in a tubular housing member (14) includes apparatus for reducing the coupling of electrical noise into the system resulting from conducting elements located adjacent the recesses and housing. The apparatus employs electrostatic, but not magnetic,...

An optical data card random access information system includes a data card 66 having data tracks transverse to the lengthwise direction of motion of the card. An electromechanical actuator 68 has an arm 70 parallel to the tracks which supports a light source 76 for illuminating a track as well as a charge coupled device linear array detector 118 for reading data. Light is directed onto a desired t...

Method and apparatus for melting rod-shaped material 12. This is continuously displaced in the direction of the rod axis towards an induction coil (5), disposed at the lower end (12a) of the rod, which has an opening coaxial with the rod and which is supplied with an alternating current. An induction coil (5) is used of which the axial dimension is several times smaller than the radial dimension. ...

Rubber crumbs which are suitable for storage can be produced by charging the rubber crumbs with an organic or inorganic powdering agent before the final drying in the process sequence, screw dehydration, screw drying, reducing the rubber strand to crumbs and final drying.

Well monitoring apparatus includes a side pocket mandrel 30 for inclusion in a well tubing string for removably receiving an instrument 38 in its offset receptacle bore 36 for monitoring at least one parameter such as pressure, temperature or the like, at a downhole location, there being an electrical conductor wire 43 extending from equipment 55 at the surface downward to the side pocket mandrel ...

A packaging film comprises a base film of at least partially water-soluble plastics film, for example, polyvinyl alcohol, carrying on one side a protective layer of particulate inert plastics material, for example, polytetrafluoroethylene powder, having a high water repellency. The film is thus vulnerable to attack by aqueous media on one side and protected against such attack on the other. It may...

A function generator circuit is provided which generates a target engine revolution speed electric signal indicative of a target engine revolution speed which is a first predetermined function of an accelerator pedal stroke electric signal indicative of a depression degree of an accelerator pedal. There is also provided another function generator circuit which generates a target engine torque elec...

A method and an apparatus for controlling the reduction ratio of a continuously variable transmission are disclosed wherein when an actual engine coolant temperature indicative signal is greater than or equal to a predetermined value indicative signal, a desired optimum reduction ratio signal is obtained by retrieving the desired optimum reduction ratio signal data stored in a memory versus an eng...