Automatically and semiautomatically unjamming nail selection dev

Details Automatically and semiautomatically unjamming nail selection dev Automatically and semiautomatically unjamming nail selection dev

1980-09-17

1983-05-31

Skaggs, H. Grant

Article dispensing

Automatic control

Of discharge assistant operation

221 93, 221171, 221292, G07F 1100

Patent

active

043857124

ABSTRACT:
An automatically and semiautomatically unjamming nail selection device, designed particularly for machines riveting footwear heel seats onto corresponding heels. The device has a nail tank or magazine coupled with a rotary chamber equipped with units designed to lift the nails and drop them onto a chute having a number of raceways which join with corresponding guides leading to a mobile combshaped selector moving to-and-fro in a perpendicular direction relative to the nail feed direction. The selector is designed to select such nails and deliver them to a distributor moving to-and-fro parallel to the selector and having feeding ducts leading to the utilization outlet. The selector is integral with an arm controlled by a first fluid dynamic actuator which determines its to-and-fro elastic motion, and the distributor is connected--through a rigid coupling--to another arm which is, in turn, shifted elastically to-and-fro by a further fluid dynamic actuator. The first fluid dynamic actuator is interlocked to an automatic unjamming pilot system, designed to produce some slight oscillation in the selector whenever the same jams up, and to another pilot system for the semiautomatic unjamming of the selector, this second system controlling the selector's motion back to its resting position whenever the jamming of the same is not cleared by the automatic unjamming device.

REFERENCES:
patent: 1191180 (1916-07-01), Havenet
patent: 2433560 (1947-12-01), Hufley
patent: 3061147 (1962-10-01), Viltterding

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