In order to design a sheet feeder with a nonstop-device with stringers suspended at lifting chains and cross bars carried by the stringers for supporting bars that serve as base for a remaining pile, in such a way that the remaining pile, which is on the bars of the nonstop-device, is laterally adjustable, the stringers are seated in longitudinal guideways, extending in direction of lifting, and t...

The motor-driven shredding machine has overload protection. The motor (9,10) is cantilevered from the driven mechanism (4,5), and prevented from turning by an arm (15,16) extending radially from its axis and working against a spring stop (17-19). The latter is secured to the support (1) for the mechanism, there being a switch (20) alongside the stop, which is actuated whenever load exceeds a prede...

Apparatus is provided for measuring both the angle between the vertical and a particular axis of a body and the azimuth angle of the displacement of such axis from the vertical. The body houses a trasnducer having a bar magnet mounted on the free end of a pendulum beam and confronting four solenoids forming two differential fluxgate pairs disposed symmetrically with respect to the neutral position...

Appts. for splicing yarns mechanically, operates to untwist yarn tails while the are mutually positioned spaced apart, and then bring the tails together for retwisting when trimmed to length. The appts. comprises opposed rings which are brought together and rotated in opposite directions to untwist the yarns and trim the tails to length. The yarns are then brought together and retwisted, at least ...

Polyoxyalkylene surfactants for cellular foams can be prepared by reacting a polyoxyalkylene adduct and an esterified unsaturated dibasic acid in the presence of a free-radical initiator.

PURPOSE:To make a metal amorphous at higher efficiency and to obtain the amorphous metal of pulverous powder grains which are uniform and approximately spherical with a process for injecting a molten metal to a high-speed rotating body by specifying the shape of the rotating body. CONSTITUTION:A vessel-shaped rotating body 1 is formed of a rotating body having a revolving shaft 5 which is the cent...

An inexpensive yet reliable method for incorporating a minor fraction of a percent by weight of nucleating agent in a propylene polymer is provided in which the nucleating agent is dissolved at a concentration of less than 10% in a homogeneous, alcohol-based, carrier liquid having a normal boiling point of not over about 120 DEG C. The resultant solution is atomized into a full jet spray of fine ...

A coating composition for polycarbonate surfaces comprising a mixture of: (A) 86% to 98% by weight of hydroxyl-group-containing copolymers with copolymerized units of: (a) 20% to 32% by weight of at least one aromatic vinyl monomer, (b) 8% to 18% by weight of at least one hydroxylalkyl ester of acrylic or methacrylic acid containing from 2 to 12 carbon atoms in the alkyl group, and (c) 50% to 70% ...

The bar code reading device comprises a semiconductor laser diode, a first end face of which is optically coupled to an end of an optical fibre, a second end face being optically coupled to a detector. The bar code information is presented to the other end of the optical fibre. This information is read by the semiconductor laser diode by way of optical feedback.

Inertial measurement of the angular rotation and translational motion of a structure can be provided by a pair of vibrating accelerometers 10, 12 aligned in a side-by-side arrangement with their force sensing axes A<1>z, A<2>z in the same plane and vibrated to and away from each other in that plane along an axis normal to their force sensing axes.

Apparatus for measuring inertial specific force and angular rate of a moving body by means of a plurality of accelerometers mounted on mutually perpendicular axes, each accelerometer Ax, Ay, Az, being mounted for vibratory movement along its respective axis. The apparatus further includes a drive for vibrating each accelerometer to produce output signals and a signal processor for deriving from th...

A control process for a rotary pump which is immersed in a fluid produced by a well involves the use of a rotary pump driven by a variable speed motor and comprises the steps of acting upon the rotational speed of the motor according to a pressure difference which exists between the pressure of the fluid measured in the proximity of the pump and the production pressure of the well. The production ...

Almost complete elimination of metal ions in aqueous effluents can be effected by treating said effluent with a base and then adding amorphous, hydrated magnesium silicate. This sequential process allows metal ion concentration to be reduced to less than 0.1 part per million while using a fairly small amount of amorphous hydrated magnesium silicate.

1. A sheet of transparent plastics material of high optical quality comprising a layer based on polyurethane having energy-absorbing properties, characterised in that the layer having energy-absorbing properties is formed essentially of a polyurethane obtained by reactive casting on a flat horizontal support of a reaction mixture of an isocyanate component of viscosity less than 5 Pas at 40 degree...

The invention relates to a method for purifying aqueous solutions containing at least one impurity element from the group consisting of arsenic, phosphorus, mercury and other heavy metals and solid matter by precipitation in at least two stages with the aid of precipitation reagents possessing ions capable of forming not-readily dissolved hydroxide precipitate. In accordance with the invention the...

TITLE COATED POLYCARBONATES Polycarbonates having a coating thereon containing (1) from about 5 to 62 percent by weight of a polyester diol formed from the polycondensation of a glycol and dicarboxylic acids, at least one of the dicarboxylic acids being aromatic, (2) from about 8 to 35 percent by weight of a thermosetting acrylic resin having a sufficient amount of an .alpha.-.beta. unsaturated ca...