摘要:
Apparatus for separating waste particles from a textile fiber flow is disclosed which includes a housing (2, 22, 34) with a deviation zone (4) and separation zone (6). Following the deviation zone is a fiber flow discharge channel (5). Following a separation means (10, 11, 23) is a waste chamber (7) for removing large and small particles of waste. The waste particle separation device includes a plurality of rod elements (10, 11) which are curved to guide lighter particles upwardly to prevent adherence to the separating element. Larger particles pass through openings between the rod-like elements to the collection chamber. Communication between the fiber flow and the waste flow may be had by using a valve member (27, 35) to intermittently connect a collection channel (25) with a suction removal source (8) via waste chamber (7).
摘要:
Oligomeric alkylene terephthalates having an average degree of condensation of 4 to 7 are produced by passing dimethylterephthalate and diol having at least 3 carbon atoms downwardly through a series of reaction chambers, each outfitted with stirring and heating means employed so that the temperature increases from stage to stage. Thereby transeterification is effected. The chambers are interconnected so that the methanol evolved in each chamber is vented without being admixed with the material undergoing transesterification in any of the other chambers. The transesterification product is then condensed at elevated temperature and under vacuum to produce the oligomer. The oligomers are high reactivity so that the further condensation thereof to polyesters is simplified.
摘要:
This invention relates to a process for producing water-absorbing composites comprising the steps of foaming an aqueous mixture comprising at least one monoethylenically unsaturated monomer bearing acid groups, at least one crosslinker, at least one initiator and at least one surfactant, contacting the foam obtained with at least one web of synthetic fibers and polymerizing, to the composites themselves and to their use for absorbing aqueous fluids.
摘要:
A ventilation-heating apparatus comprises a fresh air passage with which a fresh air ventilation mechanism is associated and which opens into a room-side inflow air supply opening. The ventilation-heating apparatus further comprises a room air passage with which a room air ventilation mechanism is associated and which opens into a room-side air removal outlet opening. Fresh air and room air passages are passed through a heat exchanger which is suitable for the transfer of heat from the room air passage to the fresh air passage. An electrically heatable metallic heating element is provided in the region of the fresh air passage. A suitable heat storage element is associated with the heating element for the storage of the heat produced. An electrically heatable metallic additional heating element which can be selectively switched on is provided in the region of the fresh air passage.
摘要:
A motor-vehicle head rest has a one-piece plastic body formed with a pair of like recesses opening parallel to each other, and respective pivot assemblies in each recess. Each such pivot assembly has a holder and a pivot element held in the holder. Interengaging formations on the body and holder retain the holders in the recesses, and respective rods engage up through the pivot elements of the assemblies. Such a head rest is made by fitting the holders to the respective pivot elements, engaging the holders carrying the respective pivot elements into the respective recesses and thereby interengaging the formations and locking the holders with their pivot elements in the respective recesses, and fitting the rods through the pivot elements.
摘要:
A bale opening device (1) for opening textile fiber material from fiber bales (9) and the like is disclosed which comprises a rotary tower (2) supported for pivotal movement about 180 degrees. The rotary tower reciprocates along a row of bales and has at least one cantilevered arm (3) carried by tower. Reducing unit (4) is carried by cantilevered arm (3) for reducing the bales while the tower reciprocates along the rows. Driving means (44, 45) is provided for causing the pivotal movement of the tower about 180 degrees. A rotary part which pivots with the tower, and a base plate (6) is fixed relative to the pivotal movement of the tower. A stop bar (31) is carried by one of the rotary part (5). A plurality of stop brackets (24, 25) are carried by the base plate cooperating with the stop bar. Arresting means is provided for stopping and braking the pivotal movement of the tower which includes brake means (44) for braking the tower against pivotal movement when the stop bar abuts against one of the stop brackets while a torque (44, 46) of the driving means is maintained.
摘要:
Apparatus for opening compressed bales of fiber includes means for supporting one or more of said compressed bales of fiber in a row. A reciprocating tower is provided and supported for reciprocating alongside the row of said bales of fiber and has a cantilevered portion which extends over the row of bales of fiber at a height which is adjustable. Reducing means is supported by the cantilevered portion over the top surface of the bales for removing fiber therefrom. A horizontal channel is disposed adjacent to and above the reducing means for receiving fiber removed from the bale by the reducing means. The horizontal channel is connected to a telescoping vertical channel within the tower means for delivering fiber from the reducing means to the discharge channel in the tower when a suction force is created therein. A scanning means is provided for measuring the density of fiber within the horizontal and vertical channel and for generating a signal which corresponds to the density of the fiber measured in the channel and a control means is provided for receiving the signal generated by the scanning means and for adjusting the height of the cantilevered portion so as to maintain a predetermined fiber density within the channels. The scanning means may comprise a light barrier arrangement or an ultrasonic means.
摘要:
Apparatus is disclosed for reducing bales of fiber which includes a tower that reciprocates alongside a row of bales. The tower has a cantilevered portion which extends transversely over the row of the bales and supports two milling rollers for removing fiber from the upper surface of the bales. The cantilevered portion has a generally horizontal fiber collecting channel for receiving fiber removed from the bales, and includes a closed chamber in which is located a single drive for driving the two milling rollers in opposite directions. An adjustable vent permits passage of varying amounts of the atmosphere through the closed chamber. The closed chamber is connected to the horizontal channel so that air currents created by suction through the vent convey fibers removed from the bales by the milling rollers to a fiber collection point within the tower.
摘要:
The invention is an apparatus for the acquisition of speed of rotation and/or angle of rotation signals on a shaft, on which there is a pulse transmitter on the circumference of the joint and a sensor which measures the pulses produced by the pulse transmitter located on a pivot part, which defines a pivot axis, around which the shaft portions of a cardan shaft can be pivoted in relation to one another.
摘要:
There is provided a device for fastening a rod-like antenna element on an antenna supporting spar having a square or rectangular cross-section which device comprises a U-shaped clamp of spring elastic material having inclined portions at the free ends of the legs which portions extend in the direction of the base of the clamp. Adjacent to the base of the clamp, essentially aligning holes are provided in the legs for inserting an antenna element. In the non-deformed stage of the clamp a deformed portion of the base extends in the linear connection of the holes whereas the antenna element can be inserted into the holes when the legs of the clamp are pressed together.