摘要:
A weft thread clamp for a weft thread presenting lever is positively actuated to selectively open or close the clamp and thereby release or hold the weft thread respectively. To achieve this, a second clamp element is movable or deflectable relative to a first clamp element of the clamp. The movable second clamp element may be directly embodied as an actuator, or may be driven by an actuating motion provided by an actuator located remotely from the clamp on the lever. In the latter case, a motion transmission arrangement such as a sheathed push-pull cable or a rod linkage operatively connects the actuator to the movable second clamp element. The actuator may be a piezoelectric, electromagnetic, hybrid pneumatic-electric, or hybrid hydraulic-electric device, or an electric motor. The loom control unit is connected to the actuator for providing control signals thereto.
摘要:
A controlled weft thread presenting and clamping arrangement minimizes weft thread waste and ensures proper tensioning of the weft thread during its presentation to the insertion gripper, in a gripper loom for weaving with plural different weft threads. The arrangement includes a control shaft (13) that has a drive key (14) protruding therefrom in a reference plane (7), and that is rotatably supported on a support bracket (10, 11, 12), which may be mounted on the loom. Weft thread presenting levers (15) each carrying a respective clamp (16) are movably arranged on the shaft (13), which passes through a hole in each of the presenting levers (15). A translational drive (22) acts on a presenting lever support (17) to translationally move all of the presenting levers (15) in unison together axially along the shaft (13) until a selected lever (15) is positioned in the reference plane (7), with the lever's drive groove 15B engaged on the drive key (14) of the shaft (13). A rotational drive (23) rotates the shaft (13), and therewith the selected thread presenting lever (15) via the drive key (14). A guide member (19) has a lengthwise groove (20) to allow all of the presenting levers (15) to move linearly therealong in unison, and a crosswise groove (21) in the reference plane (7) to allow only the selected presenting lever (15) to rotate in the reference plane. A thread back tensioning device (9) is arranged in the thread path to apply tension to the thread being presented to the gripper.
摘要:
A clamping holder for flexible lines, particularly current-carrying lines, has a line holder with at least one device for fixing a line and a device clamping the line in the device. The device and the line holder have at least one mutually aligned passage, respectively. A known type of elastic, longitudinally extendible tension device is pulled into the passages. The tension device has a neck-type cross-sectional contraction and connects the line holder with the device in a ventable manner.
摘要:
The present invention relates to a collapsible pocket-sized ball toy and a pocket-sized container or package for the toy, wherein the toy comprises a light weight exterior covering surrounding a light weight expandable spring.
摘要:
Compounds of the formula I are disclosed and claimed in the present application, as well as their pharmaceutically acceptable salts, pharmaceutical compositions comprising the novel compounds and their use in therapy, particular in the management of pain, and more particularly in the management of pain during labor.
摘要:
An impermeable cooled closing plug adapted for closing the end of a semiconductor manufacture processing tube is made of a material selected from the group consisting of quartz, silicon and silicon carbide, which materials have low heat conductivity and high chemical stability. The cooling effects of a cooling liquid supplied to the entrance flange of a processing tube are isolated from the tube closing plug by virtue of the low heat conductivity, thus preventing unwanted condensation effects at the entrance of the tube.
摘要:
The invention relates to a loom (1) with a warp beam (2) and a drive means (3), in particular, a warp beam gear, whereby the warp beam (2) has a warp beam flange (2.2) and a detachable connection is provided between the warp beam flange (2.2) and the drive means (3), said drive means (3) being mounted in a drive-side frame wall (4) of the loom (1) and the warp beam (2), the warp beam flange (2.2) and the drive means (3) are arranged on a common rotational axis (5). The drive means (3) is connected to the warp beam flange (2.2) by means of screws and the frame wall (4) is provided with recesses such that the screws may be screwed through the recesses and drillings in the drive means (3) into the warp beam flange (2.2).
摘要:
A compact, lightweight, cost effective, self-contained standby electronic navigation system with high signal-to-noise ratio and good dynamic stability is provided. The system includes a first sensor module for providing a plurality of rotational rate signals, a second sensor module for providing a plurality of compensation signals, and a microcontroller module for processing the rotational rate signals and the compensation signals and sending the signals to a display for displaying attitude information, directional information, and turn coordinate information on a single screen simultaneously. In one embodiment, the first sensor module includes a plurality of rotational sensors made of piezoelectric elements. The piezoelectric elements are made from a single sheet of piezoelectric material so that the elements possess uniform characteristics, and are arranged to reduce systematic drift and random noise normally present in a rotational rate sensor. The sensors can be configured on a single multi-sensor chip.
摘要:
An air nozzle weaving loom has a prenozzle alignment arrangement for the weft yarn picking. Several prenozzles (8a) having respective blow pipe (8b) are accommodated in a prenozzle block 9 according to an order system (geometric configuration) corresponding to the order system (geometric configuration) of main nozzles (5a) in the main nozzle block (6).