GB328510A - Improvements in and relating to the separating, and also feeding of labels or other sheets of paper or other flexible material from a pile thereof - Google Patents

Abstract

328,510. Forgrove Machinery Co., Ltd., and Grover, F. July 22, 1929. Sheet-separators. - Labels or other sheets are fed from a pile O placed on a support E in a container C by means of a reciprocating suction member formed of two branches J, J<1> connected continuously by a tube M to a vacuum chamber. The members J, J<1> slide in cavities F, F<1> formed beneath the pile and a base B, and pass through shaped apertures in the sides A<1>, A<2> of the box. The upper surfaces N, N<4> of the branches J, J<1> are inclined so as to form spaces O, O<1> above them, and the reduction of air pressure in these spaces due to the withdrawal of air through passages K, K<1> and tube M causes the side edges of the bottom sheet to be drawn down on to the surfaces N, N<1>. This action is completed when the branches J, J<1> reach the position shown in Fig. 2 and an aperture H in the side A<1> of the container C is closed by a cover L. The suction action is set to bend down the edges of the bottom sheet only, and by moving the suction member to the left the sheet attached to the branches J, J' can move through the aperture H which is shaped to correspond to the form of a sheet with bent edges. Other sheets can not pass through this aperture, so that a final separation of the bottom sheet is effected by the movement of the members J, J<1> to the left. The separated sheet is detached from the members J, J<1> by means of plungers.