An injection mould for heat-setting or vulcanisable elastomers has a cooled injection nozzle (5), the outlet from which is in a hot well (11) connected to the mould cavity (10) and set back from the latter (10).

A mixing device for oil burners having a mixing pipe (1) with a front-side passage opening (3), which tapers to the front end. There are provided an annular baffle plate (10), arranged in front of the passage (3) in the direction of flow, with radial slots (12) and, situated in front of this in the front region, a frustoconical inner pipe (7) with a rear closure wall (8) and a front passage (15). ...

The foam component, and partic. a moulding comprises a sheet(s) of soft (elastic if necessary) foam with cross-pieces or cell walls remaining at least in some parts. The cell walls and/or cross-pieces or the structure of the foam or moulding is thermally moulded to a greater density throughout its thickness or whole volume; it is thereby more compressed than one which is foamed freely or not therm...

The invention relates to a wood-residue comminution machine having at least one slow-running cylindrical rotor, which on its outer surface bears cutting knives which are fitted such that they are offset in relation to one another in the circumferential direction and in the axial direction on associated fitting faces, project with their end faces radially away from the rotor and are designed to be ...

The invention relates to a stranded spiral rope of the parallel-lay type, with at least one inner strand layer, in which the strands of the outer strand layer are of the Seale-type construction, the ready-laid stranded spiral rope being subjected to a compaction process by rolling, hammering and/or drawing. The core wires (3, 4) of the outer strands (2, 2') and of the inner strands (1) consist of ...

The oil groove (lubricant channel) (10) formed on the bottom portion (31) of the chain guide groove (7,9), and the chain guide groove (9) may be constructed as one groove (7) which is subdivided by an insert floor (8,30) into the oil groove (10) and the chain guide groove (9), the insert floor (8) having outlet openings (12) for the lubricant. The insert floor (8) can, as a bar-shaped spring (20),...

An insulation mat consists of at least 2 layers with a natural fibre pile. At least 1 layer (2, 4) is provided with a pile (6) applied in a laminar shape (6) while one layer (3) has a stratified pile (8). Pref. the mat has three nonwoven layers (2, 3, 4) and the middle layer consists of a pile (8, 6) which is applied differently from the other two layers (2, 4). The nonwovens (7) with a stratified...

Thermally stable polyimides (PI) and polyamide-imides (PAI) contain benzophenone-tetra-carboxylic acid di-anhydride (BTDA) units in which the keto gps. are partly or completely modified by reaction with amine(s) of formula R1-NH2 (I) to give the corresp. Schiff base of formula >C = N-R1, where R1 = OH, satd. or unsatd. 1-20C alkyl, aryl or aryl-(1-6C alkyl) (all opt. mono- or poly-substd. with Cl,...

To increase transverse rigidity, elements for noise barriers contain scrap or reject skis in the longitudinal direction as reinforcing elements 5, with the running surface parallel to the surface of the ground. Noise barriers comprising such elements are torsion-resistant, stable and have a high mass and improved sound absorbency with favourable production costs. At the same time, this invention s...

The present invention relates to a device for driving insulating boards (4) into masonry (10) having a pneumatically, hydraulically or electrically driven driving hammer (1). Driving piston (2) of the hammer (1) acts via a clamping jaw (3) with a shaft (7) following up with the driving piston (2) and a front part (8) on the face of a single insulating board (4). The clamping jaw (3) front part (8)...

A sectional boiler consists of individual cast-iron sections, which in each case have a lower and an upper hub (3), (4) for mutual water-space connection and of which one cast-iron section (1), preferably the end section, is provided with two water channels (5, 6) for the flow and return connection of a heating installation. To be able to connect one or more heating circuits to the boiler in an ef...

The supporting walls (2,3) of the mounting shaft (1) are made of metal and the second shuttering section contains at least one heat insulating component (5a,5b,6,7,8,11). A heat insulating component of the second shuttering section (B) is pref. adhered to the outside of the rear wall of the mounting shaft. An L-shaped profiled wall part and a flat wall part are assembled to form a U-shaped mountin...

A method is described for the non-destructive testing of strips of thermal bimetal, in order to be able to detect poor properties of the strips before they are processed to form snap discs of thermal bimetal, which would lead to an increased scatter of the snap temperatures of the finished discs. The undesired change to the level of working of the strips is made detectable by indicating the change...

Cover lifting gear for a cover (3) which can be placed on and raised from a metallurgical vessel (1) by means of a lifting mechanism (19) includes a supporting pillar (2) which carries the cover (3) when raised. In order to effect the raising and lowering of the cover (3) at little constructional expense, the cover (3) is linked to the supporting pillar (2) by way of at least one link quadrangle (...

The invention pertains to a curling stone (1) with a crown (5) formed by a conical frustrum shell (8). Inside, the crown (5) has a guide tube (17) which runs coaxial to the conical frustrum shell (8) and to which a base plate (6) is attached, while a protective ring (7) is secured to the crown (5) and to the base plate (6) by means of a press fit. Provided also is a handle (3) that has an extensio...

The non-destructive determination of the thermal conductivity coefficient of existing components which from time to time are accessible from only one side, can advantageously be carried out with a method which functions as follows: a defined quantity of heat is applied at a point to the component surface to be examined. The thermal conductivity coefficient to be determined of the component has a u...

The mechanism has a horizontally mounted, height swivelable distribution roller (1), fitted with cutter and distribution elements. The roller rotates upwards at its front side in the travel direction. On the fodder table is a movable push member abutting the silage block rear. On the distribution roller front side in the travel direction is movably fitted a flat counter-holding shield (17). The la...

Ski binding with a safety release apparatus with a ski binding housing in which a release spring is arranged which is supported by one of its ends on the ski binding housing and is connected to a moveable component by non- positive fitting, which component can be guided out of the normal position (movement position) against the force of the release spring over a limited travel into the release pos...

A process is described for the bleaching of textile materials composed wholly or partially of cellulosic materials, especially in woven denim form, by treatment in an aqueous-alkaline medium at elevated temperature, in which the bleaching agent employed is a combination of formamidinesulfinic acid and carbohydrates having the general empirical formula CnH2nOn in a weight ratio of from 80:20 to 99:...