GB626767A - Improvements relating to conveyors - Google Patents

Abstract

626,767. Endless-belt conveyers. EVERED & CO., Ltd., and FOULKES, J. T. April 5, 1947, Nos. 9223 and 13614. [Class 78 (i)] A conveyer 5, Fig. 1, for use in conjunction with a fluid pressure operated machine for drilling, tapping or like operations, e.g. as described in Specification 626,766, [Group XXII], is driven by a fluid pressure operated piston and cylinder mechanism 14a to which admission of fluid is determined by the actuation, by an operator, of the control means of the machine necessary to cause it to perform each one of its repititive operations. Depression of a pedal 18 by the operator of the machine 9 operates said machine and through a line 15a supplies fluid to the piston and cylinder 14a which withdraws a rod 14b and a chain 16. This chain engages a free wheel type driving sprocket 12 on the conveyer driving shaft 7a which drives the conveyer through a distance corresponding to the spacing of slots 5a so bring- ing a new space under the machine discharge chute 4. The piston and chain are returned to their original position by means of a spring 17 which operation rotates the sprocket 12 in its free wheeling direction. In a modification, Fig. 3, a ratchet wheel 21 secured to the driving shaft in place of the sprocket 12 is driven by engagement of a pawl 22 therewith, said pawl being carried by an arm 23 which is freely rotatable on the driving shaft 7a and has a pin and slot connection with the piston rod 25b. The piston is returned to its original position by a spring contained within the cylinder. In a further modification (not shown) the cylinder is connected directly to the exhaust of the machine operating cylinder 26.