The invention relates to a sheet feeder for the individual feeding of sheets to a sheet treating machine. A first sheet pile is carried by a main pile table, and sheets from this sheet pile can be fed by a sheet separating device, optionally via a first feed table, to the sheet treating machine. A further sheet pile is carried by an auxiliary pile table. Sheets can be fed by a second sheet separat...

The invention relates to crushers, particularly of the rotating hammer type, in which blocking of the crusher by conglomerated dirt and fines is obviated by a construction comprising hammers 6 rotatably mounted within a casing 4, at least one hammer having an outer transverse edge 14 adapted to wipe the inside face of the circular periphery of the casing, and side edges 15 adapted to wipe the inne...

A method of mounting photographic prints, for use in labelling, comprises longitudinally advancing adhesive transfer tape 2 carrying longitudinally spaced photographic prints 4 adhered thereto by the adhesive 3, and diverting the advancing tape sharply away from the main longitudinal path and then back to the main longitudinal path, each print and its underlying adhesive 3 from the tape on encount...

A thread guide for drawing threads (3',4') overhead from two yarn bobbins (3,4) disposed coaxially one above the other comprising separate thread guide flyer arrangements (5,12) mounted by means of respective bearing bushes (6,13) provided for each yarn bobbin. The thread guide flyer arrangement (5) provided for the lower yarn bobbin (3) is mounted between the two yarn bobbins. The second thread g...

In a stator core structure for an electromagnetic actuator the core is of cylindrical form having pole pieces 13 between which are defined grooves 12 accommodating windings. The core is formed with a diametrical slot 15 which extends the length of the core and which locates the connections between adjacent windings. During the winding step of the assembly of the actuator, a spacer 15A is progressi...

Preparatory to adhesive bonding of a thermoplastics composite a, each face of the composite is moulded against a thin surface layer of metallic material b, e.g. aluminium foil, which is unaffected by the forming conditions and does not affect the fibre-reinforced composite. The metallic surface layer is subsequently completely removed by chemical etching to leave an uncontaminated surface requirin...

A process for consolidating metal powders into slab configurations is disclosed in which the metal powder is encapsulated, heated and inserted in a containment die (12) and is subjected to a rolling operation to consolidate the powder.

Acylbiphenylylaminoalkanoic acids of the general formula I in which R<1> signifies an aliphatic or alicyclic hydrocarbon radical or an optionally substituted phenyl group, A signifies an optionally substituted and/or hydrogenated biphenylyl radical and n signifies a positive whole number from 3 to 5, as well as their salts of inorganic or organic barn exert on warm-blooded animals a prot...

A pneumatic tire having, between two vulcanized elastomeric partitions, a layer of a sealing mixture arranged on the inner wall of the cavity of the tire, at least below the crown and from one shoulder to the other, is improved due to the fact that the layer of sealing mixture has a base of at least one vulcanizable elastomer of low molecular weight, preferably less than 30,000, contains at least ...

A tire whose inner wall is provided, below the crown of the tire and at least from one shoulder to the other of the tread, with a lining containing at least one means for sealing puncture holes is improved due to the fact that the lining comprises at least one layer of a vulcanizable sealing mixture separated by a vulcanized elastomeric partition from at least one layer of a vulcanizing mixture ca...

A driverless guided vehicle has a cargo loads receiving floor (4), an upright (5) mounted on the vehicle in perpendicular relation to the floor, and a control means (6-8) attached to the upright at a height easy to access by an operator on the route along which the driverless vehicle is guided. The control means includes a program switch panel, a manual dispatch switch, a manual stop switch, and a...

A security device for use on bicycles, comprising two substantially hook shaped members which are each adapted to be hooked around respective ones of the wheel forks of a wheel of the bicycle. A connecting rod extends between the said wheel forks, through the wheel spokes, and connects the said hook shaped members together, and at least one of the said hook shaped members is slidable relative to t...

A process for preparing a porous sheet material, comprises impregnating and/or coating on a substrate a water-in-oil polyurethane emulsion (d) comprising a hydrophobic polyurethane (a), a hydrophilic polyurethane (b), an organic solvent (c) and water, and drying it, characterized in that said hydrophobic polyurethane (a) is a hydrophobic polyurethane dispersion (e) obtained by reacting a hydrophob...

A blood bag (10) comprises a plastic polyvinyl chloride formulation in which the polyvinyl chloride formulation contains from 5 to 30 percent by weight of a first plasticizer material which is essentially nonextractable by blood plasma stored in the bag (10) up to 35 days at about 4 DEG C.; and from 10 to 25 percent by weight of a second plasticizer which is significantly extracted by blood plasma...

A heel holder for a ski binding includes a guide rail, a base plate movably supported on the guide rail, and an abutment which can be releasably secured to the guide rail. A thrust spring urges the base plate forwardly relative to the abutment. A sole holder and spring housing are pivotally supported on the base plate, the sole holder pivotally supporting a pawl and the spring housing supporting a...