Abstract: An arrangement for cleaning feet has a round brush that is driven in rotation. The water-operated rotary drive is arranged on a carrier that is designed as housing. Water exits in the area of the shaft of the round brush from the rotary drive to the round brush. A U-shaped stirrup is fastened to the housing, which stirrup is arranged above the round brush in such a way that the upper area of the round brush projects through the stirrup. The feeding of water to the rotary drive is regulated by a shut-off device, which is actuated by a pedal. The pedal is arranged between a base of the housing and the round brush.

Abstract: Toothed clothing for a comb of a combing machine as well a process for producing same is described. The toothed clothing includes a plurality of adjacently arranged teeth, which form at least one teeth row orientated transversely to the working direction. The teeth of the clothing are formed from the solid and are made in one piece to form a tooth bar. In addition, a top comb and a circular comb for a combing machine having such toothed clothings are also described. The toothed clothings hereby include one or more teeth rows.

Abstract: An exchangeable component of a textile machine with a surface coating or a treated surface within which color elements are embedded is provided. The color elements in the surrounding area of the coating or the treatment, upon radiation by a light of a first wave length or of a first spectral range of wave lengths, emit a light of a second predetermined wave length or a second predetermined spectral range of wave lengths. Furthermore, a detection apparatus is provided with a source of illumination for the radiation of such a component and for the detection of the emitted light.

Abstract: For the design of an opening cylinder (1) for an open-end spinning device where the opening cylinder (1) has a face (11), it is proposed that the base body (12) of the opening cylinder (1) be located on the end of a shaft (2) away from the bearing (21), whereby an axial distance (9) exists between the base body (12) and the bearing (21). To expose the gap (22) for maintenance purposes, the clothing holder (3) is designed so as to be removable in the axial direction across the bearing (21), whereby the face (11) towards the bearing (21) is formed on the clothing holder (3).

Abstract: The invention concerns an exchangeable component (3) of a textile machine with a surface coating (18a) or a treated surface, wherein invented color elements are embedded, so that the color elements, that is to say, the surrounding area of the coating (18a) or the treatment, upon radiation by with light of a first wave length or of a spectral range of wave lengths (102), emit light of a second predetermined wave length (103) or a second predetermined spectral range of wave lengths. Furthermore, a detection apparatus (142, 143) is provided with a source of illumination for the radiation of such a component (3) and for the detection of the emitted light (103).

Abstract: For the design of an opening cylinder (1) for an open-end spinning device where the opening cylinder (1) has a face (11), it is proposed that the base body (12) of the opening cylinder (1) be located on the end of a shaft (2) away from the bearing (21), whereby an axial distance (9) exists between the base body (12) and the bearing (21). To bare the (22) for maintenance purposes, the clothing holder (3) is designed so as to be removable in axial direction across the bearing (21), whereby the face (11) towards the bearing (21) is formed on the clothing holder (3).

Abstract: The invention concerns an open-end spin-rotor with a shaft (1), on the free end of which a support cap (7d) can be attached, a support cap for this service as well as a procedure for the manufacture of an open-end spin rotor. In accord with the invention, the open-end spin-rotor is improved in such a manner, that the shaft (1) possesses an alignment surface (5, 6) on the end face and the support cap (7d) exhibits a counter alignment surface (9, 10) for the alignment of said support cap (7d) relative to a plane disposed perpendicular to the rotor axis and/or an inclined alignment surface for the alignment and coaxial centering of the support cap on the shaft (1).

Abstract: A multicomponent opening roll for an open end spinning apparatus includes a core piece, upon which a holder for a tooth-set carrier is fastened. The tooth-set carrier (12) must be exchangeable as is determined by operational wear. In order that the axial width of the opening roll (1) is made independent of the axial width of the tooth-set carrier (12), the core piece (11) possess an axial detent (131) for the holder (13).

Abstract: An electric switch is shown which is responsive separately to two different conditions, i.e. temperature and pressure. The switch includes a temperature sensing disc and a pressure sensing disc both coupled through several alternate motion transfer arrangements to the movable electrical contact of the switch. Several structures are shown for mounting a switch on a surface so that the pressure sensing disc is exposed to fluid pressure and the temperature sensing disc is thermally coupled to the surface.

Abstract: A pressure sensing element having a housing including a flexible membrane receiving portion, a flexible disc member of predetermined shape secured within the housing, and a flexible membrane disposed within the housing, the flexible membrane being substantially more flexible than the disc member, the membrane having an outer portion hermetically secured to the membrane receiving portion, a central portion impinging against the disc member and conforming to the shape thereof and an intermediate unsupported portion joining the interior portion of the outer portion and the exterior portion of the central portion.

Abstract: Differentially connected capacitive sensors are mechanically coupled with the flexible capacitor plate of one sensor coupled to the source of pressure to be measured, the flexible capacitor plate of the other sensor coupled to ambient pressure. In a second embodiment, inaccuracies due to forces on the flexible plate are minimized by providing a housing with a tapered inner wall, an O-ring and a support to apply a radial load to the sensor due to clamping action from the tapered housing against the O-ring to provide a seal for the pressure sensing chamber. In a further embodiment, the cost of fabrication of the pressure transducer is minimized by providing the housing as a one piece cup. The electronics are mounted on the exterior surface of the low pressure side of the ceramic capacitor pressure sensing element and sealed in thereat by potting with an epoxy.

Abstract: A pressure sensing element having a housing including a flexible membrane receiving portion, a flexible disc member of predetermined shape secured within the housing, and a flexible membrane disposed within the housing, the flexible membrane being substantially more flexible than the disc member, the membrane having an outer portion hermetically secured to the membrane receiving portion, a central portion impinging against the disc member and conforming to the shape thereof and an intermediate unsupported portion joining the interior portion of the outer portion and the exterior portion of the central portion.

Abstract: A pressure sensor probe has a first port connectable to a relatively low pressure source in a compressor crankcase and a second port connectable to a relatively high pressure source at the output of an oil pump. A shuttle is slidably disposed in a bore and has a first end which closes the first port when the difference in pressure between the two ports indicative of normal operation exceeds a selected value determined by the relative areas of the shuttle exposed to the respective pressures and by a coil spring which biases the shuttle away from the first port. A passage is formed between the shuttle and the bore leading from the second port to a force receiving surface on the high pressure side of the shuttle. The length and cross sectional area of the passage is selected to provide a desired dampening or time delay between the high pressure source and the force receiving surface.

Abstract: A hermetically sealed, creep acting pressure switch has a sensor assembly comprising a bulged metallic membrane welded between a port fitting and a support. A switch assembly, attached to the sensor assembly, includes a housing which has a switch chamber in which, in one embodiment, a pair of stationary contacts are mounted. A piston having a force receiving surface at one end is biased into engagement with the membrane with an adjustable calibrated force. An electrically conductive contact bridge is mounted on and is movable with the piston. The switch can be normally open or normally closed depending on which side of the contact bridge the stationary contacts are mounted. In an alternate embodiment a miniature switch is mounted in the switch chamber and is adapted to be actuated by the piston.

Abstract: A hermetically sealed, creep acting pressure switch has a sensor assembly comprising a bulged metallic membrane welded between a port fitting and a support. A switch assembly, attached to the sensor assembly, includes a housing which has a switch chamber in which, in one embodiment, a pair of stationary contacts are mounted. A piston having a force receiving surface at one end is biased into engagement with the membrane with an adjustable calibrated force. An electrically conductive contact bridge is mounted on and is movable with the piston. The switch can be normally open or normally closed depending on which side of the contact bridge the stationary contacts are mounted. In an alternate embodiment a miniature switch is mounted in the switch chamber and is adapted to be actuated by the piston.

Abstract: A sealed pressure-responsive switch is manually resettable and trip-free. The switch has a separate snap-acting, bistable, dished metal disc or disc element disposed between a sealed snap-acting pressure-responsive diaphragm and a spring-biased switch arm. The disc moves to an inverted dished configuration with snap action to move the switch arm to a trip position against the arm bias when the diaphragm moves in response to application of a selected fluid pressure. The disc remains in its inverted shape to releasably hold the arm in tripped position until the switch is manually reset even when the diaphragm returns to its original position after removal of the selected fluid pressure from the diaphragm.

Abstract: The disclosure relates to a method and apparatus for on-line calibration of disc thermostats. A disc thermostat is initially provided in assembled condition, the gap at the switch measured and compared with a predetermined optimum gap, the error magnitude determined and a device operated to alter the position of the disc and transfer element relative to the switch to provide the predetermined optimum gap. A feedback generator station tests a prior thermostat during disc snapping for disc velocity and switch opening and provides a fine tuning adjustment signal to alter the predetermined optimum gap on-line.