A device for pocketing plates for accumulators in separators has a supply coil (1) from which a separator strip (6) is drawn and conveyed in a vertically running channel (10) to an end stop (20). In the channel (10) there is provided a slot through which a folding plate (40) (on which a plate is placed by a plate layer (24)) can be pushed, folding and pushing out the piece of separator strip. The ...

This invention relates to the use of a C2-6 polyfluorocarbon compound containing no chlorine or bromine atoms as physical blowing agent in the preparation of rigid, closed-cell, polymer foams. Use of such blowing agents, especially 1,1,1,2-tetrafluoroethane (R-134a), in the preparation of polyurethane or polyisocyanurate foams provided for products in which the loss in thermal insulation performan...

Rotating cutting tool, in particular a drilling, milling and/or reaming tool, with a tool body having a pronounced longitudinal extension in the direction of the rotational or main axis and made of carbide or mechanically resistant material, which tool body has on its outside at least one groove running preferably at an angle to the axis differing from 0 DEG , in particular roughly helically, and ...

A brake actuator (1) has a piston (2) slidable therein and acting on a volume of hydraulic fluid contained in a chamber (5). The piston (2) is provided over part of its length with a gear profile (11) which is engaged by a drive input member (12) typically in the form of a rotary pinion. The input member is driven by an electric motor (13) to actuate the piston in translation via the gear profile ...

A thermoformable, rigid or semi-rigid polypropylene foam sheet having a smooth surface and a uniform cell structure and a density of at least 2.5 lbs/ft3 is prepared by extruding a mixture of a nucleating agent, a physical blowing agent and a polypropylene resin having a high melt strength and high melt elasticity.