Abstract: The cooling system employs a refrigeration machine having two condensers and an evaporator. The evaporator is connected in heat exchange relation with a low-temperature cooling circuit having a water accumulator. A cooling tower circuit for a higher temperature is connected with one condenser in order to cool a second load unit at a higher temperature than the first load unit.The cooling tower circuit may also be employed to cool both load units when the outside ambient temperature is below a certain value.The water accumulator may also be used as a heat source while the refrigeration machine is used as a heat pump in order to supply heat to a building heating system, for example during non-cooling periods.

Abstract: The heat exchanger includes a cylindrical pressure vessel in which a faller column having heat exchange surfaces and at least one riser column having further heat exchange surfaces are mounted. The riser column walls extend around the walls of the faller column. The top part of the pressure vessel is connected to a bottom part in a dis-connectable manner with the riser column walls being suspended in the bottom part. The walls of the faller column with all the heating surfaces disposed therein can be withdrawn from the space around which the riser column walls extend for servicing.

Abstract: The apparatus for preparing liquid para-hydrogen from normal hydrogen has a reservoir for the liquid para-hydrogen. A gas space of the reservoir communicates via a line with the suction side of an ejector. The ejector extracts the para-hydrogen vapor evolved by heating and returns it to the reservoir in the form of liquid para-hydrogen.

Abstract: The pick-finding device has a planetary transmission for turning back the weaving units into their proper operative position relative to the weaving machine. The input shaft and output shaft of the transmission run in the same direction and at the same speed as one another. In addition, an indexing means is provided to supervise the range of adjustment of the control motors in accordance with the required range of adjustment of the weaving units.

Abstract: The weaving machine has a weft picking mechanism which is controlled so as to adjust the picking speed of the weft yarn relative to the operating speed of the weaving machine. The means for controlling the picking mechanism receives an error signal from a comparator connected on the input side to a pick-off for detecting the arrival of a weft yarn at the weft catching station and a second pick-off for detecting the operating speed of the machine. The error signal may also be used to control a fluid type of weaving machine or may be used to control the drive of the weaving machine relative to the picking mechanism.

Abstract: The packing is constructed for an exchange column and is provided with corrugated lamellae which have steep portions disposed between the various corrugations in order to accelerate the descending liquid phase between the corrugations. The steep portions are vertically arranged between adjacent corrugations or between pairs of adjacent corrugations.

Abstract: The drum-shaped control device has a jacket which defines an air pressure reservoir and outlets which connect via air feed lines to the nozzles of the weft insertion device. A split rotary slide valve is disposed within the jacket so as to open each of the outlets in sequence to the pressurized air in the reservoir. The valve is driven by a hollow tubular shaft which is connected via pins to the valve. Air is delivered to the reservoir through the hollow shaft from one end of the control device. Operation of the moving parts during operation is compensated by the widening of the split valve due to the pressure in the reservoir.

Abstract: The edge yarn clamp for a weft yarn is provided with a push-on resilient shoe on the metal clamping jaw. The resilient shoe includes a curved clamping cap on a rearward part to reliably retain the shoe in place while permitting an ease of fitting-on.

Abstract: The vapor generator is constructed with an evaporator of vertical tubes about the combustion chamber and a final evaporator which is disposed between the economizer and at least one superheater within the flue of the generator. The first superheater tubes are vertically disposed and are welded to the tubes of the evaporator in a seamless manner and connect with the vapor outlet of the water separator.

Abstract: The steam generator is comprised of a pair of vertical flues which are connected by a transverse flue. The support structure uses bearing systems to suspend the vertical flues in a region immediately below the transverse flue. The bearing systems are also mounted on a support structure immediately below the transverse flue.The support arrangement eliminates the need for any bearer tubes passing from the back wall of the first vertical flue and the front wall of the second vertical flue through the transverse flue.

Abstract: The crossing thread supply system for the weaving machine employs a rotatable bobbin carrier and a thread tensioning means for controlling a thread pay-out from a bobbin on the carrier as a function of thread tension. The tensioning means employs a control lever which is pivotable under the influence of the paid-out thread and a pivoting lever which engages via a pawl with a ratchet wheel connected to the bobbin carrier. The control lever serves to pivot the pivoting lever when moved to an innermost position. This disengages the pawl from the ratchet wheel to permit indexing of the ratchet wheel and bobbin carrier.

Abstract: The refrigerating apparatus for a load in a coolant bath has a buffer tank which is maintained at a low pressure via a vacuum pump. The buffer tank communicates via a valve with a vapor chamber above the coolant bath. Upon an increase in heat evolution from the load above the rating of the compressor, the pressure in the vapor chamber causes the valve to open and excess vapor to escape into the buffer tank. The pressure in the vapor chamber thus remains constant while the temperature of the load does not increase.

Abstract: The jacquard attachment is provided with a guide means having slot-like eyes for guiding the jacquard yarns and a comb above the guide means for reciprocating in the shogging direction to engage selected ones of the jacquard control yarns for movement sideways in the eyes. The eyes are of a width equal to one or more needle spacings to allow movement of the yarns therein.

Abstract: The conveyor belt for the shuttle return conveyor mechanism is formed with a support on the upper surface for laterally supporting a series of shuttles thereon and drivers which act as abutments for moving the shuttles from the catching mechanism to the picking mechanism of the weaving machine. The shuttles are thus conveyed directly on the conveyor belt and do not require separate guides or channels in the weaving machines.

Abstract: The hydrostatic piston machine is provided with hydrostatic bearing pockets at least one of which is provided with an unthrottled flow of high-pressure medium while at least one other pocket is provided with a throttled flow of high-pressure medium. And the pockets are sized relative to each other so that the pockets receiving the unthrottled flow compensate for 70% to 95% of the force on the bearing while the pockets receiving the throttled flow compensate for 30% to 5% of the bearing forces applied.

Abstract: The warp yarn stop motion is provided with a locating rail which is sub-divided into electrically insulated sections from the U-shaped rail. Each of these sections is electrically connected with pilot lights at the ends of each section. Should a drop wire fall on to a rail section, the pilot lights at the ends of the section are also illuminated so as to define the segment of the weaving width within which a broken warp yarn is located.

Abstract: The Raschel machine is comprised of a plurality of lapping belts and a yarn laying-in comb which penetrates the pattern yarns running to the latch needles. The comb moves substantially at right angles to the axis of the latch needles and carries out a combined stroke and oscillating motion. In addition, a plurality of stitch forming systems are provided on the opposite side of the lapping belts and laying-in comb from the plane of the latch needles. The guide bars of these systems oscillate at an angle to the pattern yarns and move in a circular orbit.

Abstract: The pattern mechanism has a carrier member extending in the longitudinal direction of the tension elements for the guide bars. The carrier member supports pairs of final control elements for two tension elements. The pairs of final control elements are disposed in sets, e.g., of three, each provided with a common drive.

Abstract: The warp beam is constructed with a hollow tube on which flanges can be symmetrically mounted as well as with a tubular extension at one end to permit asymmetric mounting in the bearings of a weaving machine. The warp beam is shaftless and the extension element has a slightly greater diameter than the diameter of the warp beam tube so as to render the warp beam more rigid. The rigidity of the warp beam reduces distortions and vibrations of the warp beam during weaving.

Abstract: The pattern mechanism for controlling the shogging of guide bars or guide belts includes tension elements which are actuated by final control elements in accordance with a pattern. In order to save space without entangling the groups of tension elements, these tension elements are guided on guide pulleys which are disposed in groups of three. In addition, the pulleys of each group are disposed in overlapping relation to each other.