摘要:
The invention provides an electric wire feeding apparatus which can be easily changed at a low cost and without a great design change from the roll feeding type apparatus to the belt feeding type apparatus. In an electric wire feeding apparatus having an electric wire base table (21), a pair of rotary shafts (25, 26) arranged in both sides of an electric wire (W) of the electric wire base table (21), and rotating bodies (47) fixed to the respective rotary shafts (25, 26) via attaching and detaching means (27), there are provided a pair of belt feeding units (C), each having a belt feeding table (45), a driven pulley (46) rotatably supported to the belt feeding table (45), a drive pulley (47) having a rotational position restricted by the belt feeding table (45), and a belt (48) wound between the drive pulley (47) and the driven pulley (46). Further, the respective drive pulley (47) are fixed to the rotary shafts (25, 26) via the attaching and detaching means (27), the belt feeding table (45) in the fixed side is fixed to the electric wire base table (21) by mounting screws, and the belt feeding table (45) in the movable side is attached to the electric wire base table (21) via the connecting rod (51).
摘要:
A yarn dispenser having upper and lower rollers feeding yarn from a skein. The upper roller is pivoted to the side for insertion and removal of yarn. The upper roller has a part of its central circumference recessed so as to free yarn one time in each rotation of the upper roller, to thereby prevent balling of the yarn. A miniature, 1.5 V battery powered motor powers the rollers via an O-ring belt drive. A foot controlled switch is used in the electrical circuit. The yarn dispenser can be mounted in a briefcase sized receptacle by snap fasteners or may be removed, in which case the dispenser can be supported above a supporting surface on a removable cover on which the base rests.
摘要:
A hose-drum irrigation machine having a tensioning device engaging the hose at a position adjacent the hose-guide by which the hose is pulled from the drum as the hose is being unwound or by which a drag is applied to the hose as it is being re-wound on the drum, thereby to prevent the convolutions of hose on the drum from becoming loose. The tensioning device comprises an endless belt of which one run extends lengthwise of the hose adjacent the hose-guide and frictionally engages the hose thereby to pull it from the drum where the hose is being unwound or to exert drag when the hose is being re-wound. The belt is driven in the appropriate direction by a driving sprocket driven by a motor.
摘要:
A wire-feeding mechanism comprises a rotatably mounted pulley formed on its edge with a continuous circumferential groove and plural rollers arranged to hold an endless flexible belt against a segment of the edge of the pulley. The belt thus is adapted to hold the wire in the groove as one roller is driven.
摘要:
An apparatus for gathering individual glass fibers into spaced apart strands is disclosed. The individual fibers, during formation are passed over an applicator which applies a lubricant to the fibers. A circular cylindrical bar member, at an oblique angle to the application surface, contacts the spaced apart strands, and in conjunction with a cylindrical free wheeling roller, causes the fibers to be consolidated into a plurality of spaced apart strands according to the natural filament split.
摘要:
Device for laying piping columns under a pre-fixed constant stretch, permitting laying pipe in the sea at substantial depths, comprising means for tightening between them the pipe to be launched, control and vertical guide means for bringing the tightening means into contact with the pipe and for applying a frictional force, and actuating means for running the tightening means horizontally to exert traction on the piping column, the tightening means being characterized in having two long opposite tracks running on sliding rolls and supported by sliding blocks which are hinged so as to adjust the tracks to conform to the pipe and rubber coated curved, pipe-conforming saddles attached to the tracks.
摘要:
A seismic cable deployment system is equipped with a cable puller comprising a windlass. A seismic cable follows a cable path extending from a storage unit to the cable puller, where the cable path extends in a circumferential direction deflected around a cylindrical drum surface and confined between the cylindrical drum surface and a drum-side surface of a tension belt which is pressed against the cylindrical drum surface by two pulley rollers being disposed on either side of the cylindrical drum surface. A belt tensioner is configured to impart elastic tension to the tension belt and a motor is configured to impart rotational motion to the cylindrical drum surface and translational motion to the tension belt.
摘要:
An apparatus for tensioning and threading an optical fiber includes a first roller, a second roller, a belt that wraps around the first and second rollers, and a third roller. The belt may be in direct physical contact with the first and second rollers. The third roller may be movable between an engaged and a disengaged configuration relative to the belt. Alternatively, the first roller, second roller, and belt may be movable between the engaged and the disengaged configuration relative to the third roller. Actuation from the disengaged to the engaged configuration captures an optical fiber between the third roller and the belt.
摘要:
Disclosed is a laying device (1) of the tensioner type for the controlled clamping and moving of an elongated body, intended to be carried by a laying tower. The laying device (1) includes an annular frame (10) including two mobile frame parts (101) that each include at least one guiding box (11) and that are assembled to an element (13) for the fastening of the laying device (1) to the tower (2), through a main pivot element (14). The main pivot element (14) defines a single main rotation axis (14′), around which the mobile frame parts (101) are rotationally operable between the closed/open configurations.