Apparatus for splicing fibrous yarns includes structure having walls which define a chamber accessible to receive respective portions of the yarns and confine them adjacent one another. A gas stream may be directed into the chamber transversely to the yarn portions. Means is provided to maintain the gas stream entering the chamber, and preferably also the walls of the chamber, at an elevated tempe...

To the purpose of obtaining the joining of textile threads, by means of a splice accomplished with compressed gas, by a short, strong joint of nearly imperceptible appearance, a method is proposed, which includes the following steps: inserting the two threads to be joined through a longitudinal slit in a splicing chamber provided in a head having two parallel opposite side walls perpendicular to t...

A hopper feed apparatus for the powder hopper of a powder reinforcing machine, to keep the hopper and its supply conduit free of clogged powder, the apparatus comprising of an arrangement of springs attached to the top of the hopper on the inside thereof, which springs extend downwardly to a common point near the discharge orifice, to where they are attached to a line which extends through the con...

A method for metering and injecting small amounts of fluid into the splicing air of a splicing head of a compressed gas thread splicing device including a metering valve having a piston with a metering chamber formed therein, the metering chamber having a given volume determining the amount of fluid to be injected, the piston being slideable between a loading position and an injecting position of ...

A system for assembling, processing and transferring battery cell elements including a plurality of element assemblers and an exit conveyor having a plurality of element conveying lanes. Each element assembler includes element transfer and processing apparatus comprising an endless chain conveyor having a plurality of longitudinally spaced element carriers adapted to successively engage an element...

An electromagnetically-operated adjusting means for the valves of displacement machines, comprises an oscillatory spring-mass system 12-20 which can be held by electromagnets (1,2) in each of two end positions of maximum oscillation deflection so that at least two discrete switching positions are achieved. The electromagnets and their armature(s) 17 are designed as part of a damping means and, at ...

A yarn splicing device for spun yarns to each other wherein end sections of two yarns are untwisted and placed in overlapping relationship one on the other and thus overlapping portions of the yarns are acted by fluid to intended splicing of the yarns. An untwisting nozzle of the yarn splicing device comprises a fluid injecting hole formed to open to an inner circumferential face of a nozzle pipe ...

A yarn splicing device for spun yarns, wherein extremities of ends of the yarns which are inserted in overlapping and oppositely directed relationship in a yarn splicing hole are acted upon by flows of a fluid turning to be spliced with each other. The yarn splicing hole is substantially divided in an axial direction thereof into two yarn splicing holes which have center axes displaced from each o...

The compressed-air tubing (5) leading to the splicing chamber (1) of the yarn splicing device is provided with a combined dosing and atomizing valve (7) through which the splicing air passes and which can be actuated by the splicing air injected; thus liquid is applied to the splice. The dosing and atomizing valve (7) has a dosing chamber (22) which is connected alternately to a container of liqui...

The compressed-air pipe (20) leading to the splicing chamber (1) of the yarn splicing device encloses a humidification tube (30) which opens into this compressed-air pipe and which proceeds from a container filled with liquid (24) in which the liquid level is below the aperture (5) of the splicing chamber (1).

The splicer head (5) of a pneumatic yarn splicer device (1) is provided on either side with pneumatic holding devices (15, 16) for holding the respective yarn ends (34', 35') of the yarns to be spliced together (34, 35), the inlet-mouths (33) of these holding devices having inserting aids for the yarn ends (34', 35') shaped as recesses (36, 37) of varying depth and of limited extent. With the help...

An on-line method of inspecting an apertured mask sheet (10) to be formed into a shadow mask for a colour cathode ray tube is disclosed. In one of several embodiments described the mask sheet (10) is linearly scanned by a laser spot (32) transverse to the direction of advancement (30) of the mask sheet. The peak values of the grey levels of the laser light transmitted by the mask sheet are detecte...

A positioning control system controls the shifting of one of a plurality of radiation filters into the ray path. Transducers provide an electric density signal which is dependent upon the density of the examination subject. The control system has an electromotor activated by a control circuit to which the density signal is applied and which activates the motor corresponding to the respective densi...

Procedure and device for cutting pieces of material to order, from a band of material, by using a cutting table equipped with a vacuum installation for holding the band of material in place and a workable, longitudinal and traverse slide on the cutting table, running along the desired cutting lines, which is controlled by a data processor for marking and data control, as the carrier of a cutting t...

Novel non-ionic contrast media are efficiently prepared from generally available ionic contrast media or non-iodinated precursors. Particularly, polyhydroxyhalo-hydrocarbons are employed with a triiodo-substituted acylamido benzoic acids in aqueous weakly basic media to selectively substitute the amido nitrogen, followed by activation of the carboxyl group for amide formation.

Polyurethane dispersions based on reaction products from (A) bismethylolated urethanes having at least 2 urethane groups and (B) polyhydroxyl compounds which contain groups which are capable of ion formation, these groups being present in neutralized form, and a process for the preparation thereof. The use of the dispersions for the surface-coating of metal, plastics, glass, leather and paper.

A method and apparatus for effecting vital functions notwithstanding the fact that non-vital hardware is employed. A vital processor is implemented using non-vital hardware in the form of a digital computer which may for example be a microprocessor. The vital processor accepts binary input values and, based on a series of logical expressions relating output values to input values, determines the a...

As a component in a vital processing system, the vital driver includes hardware and software elements that enable it to produce a time sensitive output in response to receipt, on a batch basis, of check words. The number, content and rate of the check words are checked and used by the vital driver to produce a time sensitive output which can have parameters such as carrier frequency, modulation ra...

There is disclosed a circuit arrangement comprising a microcomputer, wherein certain terminals of the microcomputer may be used as either input terminals or as output terminals under selective switching control so that a reasonably priced microcomputer with few terminals can be used to control complex functions such as those of a vehicle seat adjusting mechanism. The circuit arrangement also inclu...

A mobile robot calling system has a mobile robot normally waiting at a home position and connected to an AC power supply such that its battery is charged by the AC power supply in the wait status, and a calling oscillator for generating a calling signal to the mobile robot. The calling signal is supplied from the calling oscillator to the mobile robot through indoor AC power supply wiring. Relay t...