| 摘要 |
<p>Of modular construction for either one or two reels, whereas the three-reel construction results from the junction of the two previous types of modules, provided with a brake (1) per reel (2), vertically movable along its rod (3) provided with just as many end bushings (4) that slide at least along the two nearby struts, with its interlocking control (8) in the holes (9) for purposes of securing the reel (2), while the lateral guides (10) facilitate the unwinding and winding of the reel (2) and some springs incorporated into the shaft (12) of each reel, when pressure is exerted on the bushing (13), serve to detain the reel (2) in any unwinding position during this fast rotation, and a shaft with retractable sphere (14) keeps the rewinding crank (11) secure.</p> |
