Vulcanising moulds for pneumatic tyres of vehicles are often provided with metal plates bent in a zig-zag shape and which are corrugated or which mould comparatively narrow incision-like depressions in the profiling of the tyre tread surface. In radially split moulds a problem results if the split joints between the mould segments extend in the direct vicinity of the corrugations or of the project...

A universal winding consisting of a plurality of successive figure-8s spaced radially around a mandrel with the figure-8s being spaced such that the crossovers exist in all but one location to form a payout hole extending from the exterior of the winding into the interior of the axial opening therein in which the speed of the traverse or speed of the mandrel is varied with respect to one another i...

The invention is directed to a method of preventing cathode damage when switching on an electron gun having a field emission cathode assembly including a cathode, a first electrode and a ground electrode. During normal operation of the electron gun, an extraction voltage is applied across the cathode and the first electrode and an accelerating voltage is applied across the cathode and the ground e...

This invention concerns improvements to procedures to splice yarns (20-21), whether textile yarns or otherwise, the splice being obtained by coupling two single untwisted yarns (20-21) and by reconstituting the twists thereafter, by which improvements a part of the single yarns (20-21) is untwisted until twists of a sign opposite to the sign of the original twists have been imparted, such part the...

A wedge arrangement for affixing a tool mounting means onto a base member in such manner that substantially no wear occurs between the mounting means and base member. The mounting means has a tapered portion which is wedgingly received within a correspondingly tapered cavity provided in the base member, and that part of the base member which defines the tapered cavity completely surrounds that par...

In order to be formed into a pipe shaped packing cover, a continuous sheet (4) is guided from a storage roll (l), forward to the exterior of an open end section (6'), by the likes of an auxiliary formation sleeve (6), in a direction which is at right angles to the sleeve's longitudinal axis, and on a plane which is parallel with this. The free end of the sleeve section has a muzzle rim (8), which ...

PURPOSE:To reduce the destroyed quantity of contents of a memory and the bad influence upon an external output device when a program runs away, by determining a timer operation time in accordance with the data processing quantity of a processor to detect early runaway of the program. CONSTITUTION:After data is taken into a decrement counter 7, the counter 7 subtracts taken-in data each time when a...

An electromagnetic track brake for a railway vehicle comprises an elongate brake energizing coil, a rigid frame (43), and a plurality of U-shaped braking shoes (23, 24) mounted in a row in the frame. In order to improve the transmission of braking reaction forces from the shoes to the vehicle each braking shoe (23, 24) is individually movable downwards relative to the frame (43) against sprin...

The rotary coupling, which can also be termed a seal, has a rotatable tube (23) for connection to a hollow shaft (15). A housing (22) forms a bore (24) to receive the rotatable tube. The bore is connected to a delivery opening (29) in the housing. Bushings (31,32) in the bore of the housing enclose the tube (23). A bleed medium delivery opening (36) in the side of the housing is connected to the b...

Admixture compositions for hydraulic cement compositions are disclosed which comprise a borate ester of a polyhydroxy compound and a hydraulic cement binder. The new admixtures provide increased slump retention in hydraulic cement compositions while causing only a relatively minimal increase in the initial and final setting times of the cement mix. Also disclosed are admixture compositions for hyd...

Disclosed is a composition for the improvement of the adhesion between conventional rubber skim stock compositions, utilized in the manufacture of tires, conveyor belts, hoses and the like, and metallic reinforcement cords or members such as bright steel. The invention composition is prepared by adding an organosilane compound to the rubber skim stock prior to contacting the metallic reinforcement...

Substantially closed-cell aliphatic olefin polymer foams having improved dimensional stability are provided by the inclusion therein of from 0.1 to 10 weight percent, based upon the olefin polymer, of certain naphthyl amine compounds.

The screen block with printer, consisting of three storage units permanently joined together, is intended for interactive communication in customer service and advice. It is used for handling bookings and for generating information in addition to the daily business, generating documents, having its own storage capabilities and complete information-providing capability. Three screen sections and a ...

Spinning solutions, having stable viscosity, of acrylonitrile (co)polymers are obtained by adding polymer additives having a molecular weight Mn of 1000 to 100000 and a content of 1 to 27 equivalents of basic nitrogen/kg of polymer additive in an amount of 0.01 to 2% by weight, based on acrylonitrile (co)polymer, to the spinning solution.

The invention starts from a device for closing a pressurisable container, in particular a brake cylinder (2) accommodating an actuating piston of a disc brake, arranged in which device, at an open end of a cylinder bore (3) in the brake housing (1), is a cylinder cover (4, 21) which closes the cylinder bore (3) pressure-tightly and, in conjunction with the actuating piston, delimits a pressurisabl...

In the case of an expansion element for the positive securing of the position of the cover lid in the wheel cylinder bore of a disc friction brake (fig. 3) a circular disc-shaped sheet metal blank (25) is provided, which is divided into a plurality of circular sector-shaped sections (13, 14, 15) by slots or cut-outs (8, 9, 10) extending from its outer edge radially to the centre, the adjacent circ...

In a process for producing coatings adhering to the surface while being removable, a treatment liquid is produced from PUR elastomers enabling a thermoplastic treatment by admixing a solvent. Said treatment liquid, fluid or viscous depending on the mixture ratio, is applied to the surface and forms after evaporation of the solvent a coating adhering solidly to the surface while being completely re...