GB309882A - Improvements in and relating to conveyor systems - Google Patents

Abstract

309,882. Dunlop Rubber Co., Ltd., Randles, J. T. T., Willshaw, H., and Smith, H. Jan. 13,1928. Discharging and feeding devices for endless-chain conveyers and elevators with articles hung on hooks.- Goods transported by an endless chain conveyer to the various floors 12 of a store are removed therefrom by devices 'actuated automatically and controlled by keys placed upon the chains by an attendant previous to the imposition of the goods, a different key being provided for each removing device. The conveyer comprises parallel chains 1, 2 bridged by a series of rods 3 carrying hooks 4 which engage the articles to be transported. Each removing device comprises a bar 55 and a shoot of the gravity roller-way type composed of two members 16, 17 pivoted at 18, 19, respectively, which when inoperative hang down but are brought into alignment when operative. The bar 55 is moved backwards and forwards in accordance with the movement of the member 16, and when the members 16, 17 are in alignment, it is in the path of an extension 50 of each hook 4. In this position. when an extension 50 strikes against the bar 55, the hook is tilted and the article deposited on the shoot.. The members 16, 17 are moved into and retained in either position by the fluid-pressure-actuated pistons 29, 30 of cylinders 26, 25. Fluid is admitted to the cylinders by pipes 36 controlled by a rotary valve, the stem 40 of which has a number of projections 41, 42 of different shapes arranged in two series. The projections of one series alternate with those of the other, and one series is arranged to actuate the valve to effect the alignment of the shoots while the other is arranged to put them out of action. The projections of each valve are of a different setting ,and are arranged-so that the projection for dosing any specific removing device can be actuated only by its particular key while each key operates all the valves to put the removing devices out of action. The keys 60 have projections 63 for engaging the projections on the valves, and pegs 61 for insertion in the chain links. Tilting of the hooks at the feeding point is prevented by a guide 78 or by an endless belt. An indicator 65 is provided at the feeding point and subindicators 66 at each floor. The keys 60 are placed on springs 70 on the switchboard of the indicator 65, the arrangement being such that when a key is removed, its spring will make contact with a terminal 71 and the corresponding sub-indicator will be actuated.