In the case of a multi-cell accumulator battery, the plate stacks in the cells are provided with in each case two pole links and with in each case one connecting bolt on each pole link. The prefabricated battery cover is provided with openings (which are allocated to the connecting bolts) and a potted lead bush in the wall of each such opening. In addition, it has potted cell connectors and end-po...

Interior lighting fixtures having specific shielding conditions. For lighting fixtures having a center-symmetrical light exit area, a structural pattern for a grid inserted into the light exit opening of the lighting fixture is provided which meets the specific shielding conditions of the BAP picture screen workstation condition and the like and which masks the light from the lighting fixture as l...

A bistable actuating solenoid device having an axially translatable armature which is stable at either a first or a second position. The device employs a solenoid winding wrapped around a bobbin having an internal bore with the armature disposed in the bore. A permanent magnet is located at one end of the bobbin for holding the armature in the first position and a spring urges the armature toward ...

This invention relates to a novel class of hydroxamic acid based collagenase inhibitor derivatives of the formula wherein R<1> is C1-C6 alkyl; R<2> is C1-C6 alkyl, benzyl, hydroxybenzyl, benzyloxybenzyl, (C1-C6 alkoxy)benzyl, or benzyloxy(C1-C6 alkyl); a is a chiral center with optional R or S stereochemistry; A is a -(@HR<3>-@HR<4>)- group or a -(CR<3> = CR<4>)- group wherein b and c ...

A tire curing system in which a number of mobile curing units, each designed to house a respective green tire, are selectively and independently fed along a loop circuit having at least two parallel branches, the ends of which branches are connected to a common section extending through a station for loading and unloading tires on and off respective curing units; each curing unit incorporating a m...

PCT No. PCT/GB89/00036 Sec. 371 Date Sep. 15, 1989 Sec. 102(e) Date Sep. 15, 1989 PCT Filed Jan. 16, 1989 PCT Pub. No. WO89/06740 PCT Pub. Date Jul. 27, 1989.A wire line operated shut-in tool for a tubing string of an oil or gas well has a locking mandrel for cooperation with a ported landing nipple disposed below a packer in the tubing string to lock the tool in position, and a mandrel core which...

A transmitter 1 comprises an impeller assembly 7 rotatable by a liquid flow, and an electrical generator 8 having a stator and a rotor arranged to be driven by the impeller assembly 7. The impeller assembly 7 comprises a main impeller portion 9 and a secondary impeller portion 10 angularly displaceable relative to one another about the axis of rotation of the impeller assembly 7 in response to a c...

A brake, illustrated as an internal shoe drum brake, has a body (1) carrying a plurality of circumferentially spaced friction elements (2) movable into engagement with a rotatable drum (3) by means of an actuator (5). The latter includes pressure-applying means shown as a cylinder (9) of which a pressure-generating piston is driven by an electrical stepper motor. Pressure from the piston is transm...

An automatic braking control system is capable of automatically maintaining a braking force once a vehicle has been stopped by the driver. The braking force is maintained until the clutch of the vehicle is engaged, at which time the force is automatically released so that the vehicle can be restarted. This system is especially useful for restarting a vehicle which has been stopped on an upward slo...

There is disclosed a casing centralizer/stabilizer 10 which comprises a tubular body 11 adapted to fit about a joint of casing CJ, and blades 12 extending longitudinally along the outer diameter of the body and structured to support the casing off the well bore. The blades 12 have tapered sides 12A and ends 12B. The centralizer is fixed to the casing joint CJ by set screws 13 extending through the...

The present invention provides a process for production of expansion-molded articles of a linear low density polyethylene resin in a mold which comprises compressing pre-expanded linear low density polyethylene resin beads having two melting points (measured by differential scanning calorimetry) and having a ratio: 5%

Process for the production of a rubber-reinforcing polyester cord having excellent chemical stability which is useful as a reinforcing material for tires and belts, particularly as a carcass material for light truck tire, which comprises melt-spinning a polyester comprising predominantly polyethylene terephthalate and having an intrinsic viscosity of not less than 0.75, taking up the resulting spu...

Process for the partial oxidation of fuel using a multi-orifice burner comprising a central channel and three concentric channels encircling the central channel. Fuel is supplied through the second concentric channel at a specific velocity: oxygen is supplied through the other channels at specific mass flow distribution and velocities.

The utility model discloses a power economizer of an electromagnet, comprising a pull rod, a pull sleeve, a steel ball, a shifting fork, a small electromagnet, an electrical switching, etc. While in working, a large coil is electrified and makes the electromagnet attracted. After the electromagnet is attracted, the small electromagnet works. The electricity of the large coil is broken to achieve t...

Microsilica slurries having a microsilica solids content of at least about 50% by weight which are stable for extended periods of time are provided. The slurries have a pH in the range of about 5.0 to 8.5 and comprise microsilica, an aqueous carrier medium, an anionic dispersant for the microsilica, and a chelating agent capable of chelating multivalent cationic impurities in the microsilica. Also...