192 clutches and power-stop control – Stop mechanism – Limit stop
Patent
1975-06-10
1976-07-20
Herrmann, Allan D.
192 clutches and power-stop control
Stop mechanism
Limit stop
64 28R, 188 77W, 188 823, 188 826, F16D 71100
Patent
active
039701794
ABSTRACT:
A die holder comprising a housing in which is freely journaled a spindle, the spindle terminating in a free end portion capable of supporting a die. A collar is mounted upon the spindle and is associated with a position-referencing system which governs an at-rest position of the spindle relative to the housing. At least one shearable pin or lug fixedly secures the collar to the spindle, the lug having a shear-resistance below the bending and shear-resistance of the spindle, the collar and the housing so as to be capable of shearing in the presence of the application of an excessive torque to the spindle before any damage occurs to the remainder of the die holder. The die holder also includes a releasable spring-clutch device interposed between the spindle and housing for overcoming any rotary force exerted against the spindle tending to rotate the latter to its at-rest position before the die held by the die holder is fully released from a workpiece.
REFERENCES:
patent: 1685098 (1928-09-01), Sklovsky
patent: 2506784 (1950-05-01), Haydon
patent: 2961217 (1960-11-01), Sacchini
patent: 3005133 (1961-10-01), Key, Jr. et al.
Herrmann Allan D.
Sands Philip
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