Patent GB-334276-A (GB)
Title: Improvements in or relating to machines for handling, holding, or storing linoleum, carpets and other rolled goods
IPC: A47F7/17
Filed: 1929-06-04
Abstract: 334,276. Elliott, H. June 4, 1929. Endless chain carriers, apparatus with.-A machine for handling, displaying, or storing rolls of linoleum, carpets, &c. comprises two parallel endless chains f passing round sprockets d<1>, c<1> on two parallel shafts d, e. The chains are connected together at intervals by spindles on which the material is wound. The shaft d is rotated to bring any desired roll to a convenient position by means of a crank handle h, power being conveyed through pinions j, j<1>, chain j<4>, and pinions m<2>, j<6>. An automatic brake is incorporated with the pinion m<2> to prevent movement of the chains f owing to the unbalanced weight of the rolls on one side or the other. The' pinion m<2> forms a nut screwing on a thread m<1> on its shaft m, Fig. 3. Disposed one on each side of the pinion m<2> is a ratchet wheel n, n riding loosely on the shaft m, and a nut p, p<1> fixed to the shaft. Leather &c. washers q and brass &c. washers q<1> are disposed on the outer and inner faces respectively of the wheels n, n<1>. The wheels n, n<1> are constructed to ride freely over their pawls in opposite directions. When power is applied through the handle h the pinion m<2> first rides laterally along its shaft m till it abuts against the ratchet wheel which will turn with it in that particular direction, and then rotates the chains f through the wheel j<6>. If the handle h is released and the wheel j<6> reverses owing to the weight of the rolls, the pinion m<2> slides back along the shaft m till it abuts against the other ratchet wheel which stops its lateral movement and its rotation. In case the pinion m<2> should stick against the wheel n, n<1> against which it has been pressed, or should move too clowly along the shaft m, when the handle h is released, an auxiliary brake is provided on the shaft of the pinion j. The brake comprises a fixed leather &c. face r<3>, Fig. 5, on which bears a spring-pressed clutch member r<5> which is slidable along the shaft r but rotatable therewith. The shaft r is in two separate abutting parts, and a cross-pin r<1> passing through the outer part of the shaft r engages inclines in the member r<5>. When power is transmitted through the handle h the pin r<1> rides up the inclines and forces the member r<5> away from the face r<3>, and then rotates the member r<5> through an abutting ridge. When an unbalanced roll attempts to fall, the pin r<1> slips to the bottom of the inclines and the member r<5> is pressed against the face r<3> by which it is braked. The roll spindles q at one end receive a handle whereby the material can be wound on and off, and at the other end are notches s<2>, Fig. 8. engaged by a spring pawl a whereby the spindle is prevented from unrolling by the weight of the unwound portion of material, The pawl s can be slid laterally on its spindle s<1> to enable it to be disconnected from the notches s<2> and so held by abutment of an extension s<3> against a pin s<4>. The material may be secured to the spindles g by spikes on a spring clip t; Fig. 9, having anchoring ends t<2>, or by spikes on a fabric strip attached to the spindle. Alternatively the spindles may be expansible radially, this being effected by gripping plates w<1>, Fig. 12, having wedge-shaped webs w passing through slots in the hollow spindle g and lying in notches w<2> in a core w' slidable laterally by a screw w<4>. The spindles g may be made detachable from the chains f and are then mounted in bearings having readily disconnected parts consisting of a member v, Fig. 15, fixed to the chain f and a member v<1> pivoted at v<2> to the member v and secured in position by a bolt v<4>. In mounting a roll in these bearings the members v<1> are turned down so that their ends engage under the spindle, and on starting the machine extensions v<3> engage the chains f or their sprockets and close the bearing, when the bolt v<4> can be inserted.