Patent GB-997703-A (GB)
Title: Device for draping fourdrinier wire
IPC: D21F7/00
Filed: 1962-02-09
Abstract: 997,703. Paper-making. ENGLISH ELECTRIC CO. Ltd. Feb. 9, 1962, No. 5049/62. Heading D2A. A device for draping the "wire" on a Fourdrinier machine, particularly the machine of Specification 997,704 comprises a frame for receiving the wire looped around bundle-poles and for paying out the looped wire, a pair of spaced dials rotatably mounted on opposite sides of the frame about a common axis to retain wire-supporting poles within the paid-out portion of the wire, recesses in the peripheries of the dials to receive the poles, openings in the frame through which the poles can be moved in a direction across their axes to load them into or unload them from the recesses, and means on the frame co-operating with the dials to retain the poles in the recesses. As shown, two end frames 252 (only one shown) are connected by a single transverse frame member (not shown) at the top. A dial 280 is mounted on a shaft 278 journalled in a bearing 276 on the member 274 of each end frame. This dial has a number of circular peripheral recesses 282 and one elliptical recess 284. The dials can be rotated by a chain or belt drive from hand wheels 302. Corner plates 304 serve to hold the poles in place in the recesses. 310 is a bearing housing through which extends a threaded shaft 312 on which is mounted a hand wheel 324 with a threaded hub to raise or lower the supporting bar 314 on the lower end of the shaft. This bar supports rotatably a shaft 316 which carries a pair of pulleys 318 each of which supports an endless V belt 320. Handwheels 322 on the shafts 316 enable the pulleys and the V belts to be turned. The arm 328 has a pole supporting notch 330 at its end. One end frame has a bracket 332 with rollers 334 and 336 journalled on it, the other has a fixed bracket 338 with a notch 340. The transverse frame member (not shown) carries two lugs by which it can be suspended from a crane carriage. The device also has four castor wheels (two shown at 344). Operation is by placing the first bundle-pole BP1 of a conventional bundle of a wire and three poles in the notches 330, and unrolling the bundle enough to allow the other two bundle poles BP2 and BP3 to be moved on to the base frame members 256 and into engagement with the recesses 284. The handwheels 302 are operated to bring these notches to the tops of the dials. Handwheels 324 are then operated to lower belts 320 until they can be moved around the ends of the bundle poles, and then to raise the belts and bundle poles to the position shown. A pole P1 is now fed between rollers 334 and 336 until its end is supported by the notch 340, and bundle pole BP1 removed. The dials are then rotated to the position shown, and bundle pole BP1 fed into them. Pole P1 is moved to notches 330, and the remaining poles P2-P8 inserted into the bore with the aid of rollers 334 and 336 and then fed to the dials. Finally pole P1 is moved from notches 330 to notches 346 as shown. The loaded device is supported by a ceiling carriage in the tending aisle beside the machine, and the first three poles P1, P2 and P3 are secured by clamps in the required positions ready to drop the wire over the machine. The device is then moved along the machine while the hand wheels 322 are turned to pay out the wire loop and the hand wheels 302 are turned to pay out the poles which are also clamped in the required positions. Finally bundle poles BP1 and BP2 are paid out to complete the draping.