GB701848A - An automatic device for delivering articles from hoppers - Google Patents

Abstract

701,848. Feeding articles from hoppers. SKODA WORKS, PLZEN, NATIONAL CORPORATION. Aug. 27, 1951, No. 20128/51. Class 117 Means for delivering articles, e.g. small rollers, tubes, rivets, nails and screws, from a hopper to a machine comprises a collecting member 6 adapted to reciprocate within the hopper 1 between a lower position, Fig. 2, at the bottom of the hopper and an upper position, Fig. 1, in which it is in alignment with a shoot 4 leading to the machine, and a feeler member 30 adapted to detect the presence of articles at a certain point in the shoot and to prevent the return of the member 6 to the lower position in that event. An arm 9 on the member 6 is connected by a link 10 to a bell-crank lever 11 pivoted at 12. A spring 15 holds a roller 14 on one arm of the lever against a cam 16 mounted on a driven shaft 17. The feeler 30 is mounted on a shaft 29 :and is connected by a link 27 to a member 22 pivoted at 23. A spring 25 maintains a roller 24 on this member in contact with a cam 26 on the shaft 17. A bell-crank lever 18 pivoted at 19 rests on the bent lower end 13, Fig. 3, of the lever 11 and has a screw abutment 20 mounted in its upper end in the path of a depending part 21 of the member 22. When the feeler is in contact with an article in the shoot, the member 22 is held in the position shown in Fig. 1 and its part 21 cannot move the lever 18 anticlockwise to disengage the notch in its end from the end 13 of the lever 11. This lever, therefore, cannot swing to lower the carrier 6. As soon as the last article has cleared the feeler, the spring 25 will turn the member 22' clockwise to turn the lever 18 anticlockwise to release the lever 11. The member 6 may be replaced by a linearly reciprocating member.