B - Operations – Transporting – 21 – K
Patent
B - Operations, Transporting
21
K
26/162
B21K 1/20 (2006.01) B21K 1/54 (2006.01) B62D 5/083 (2006.01)
Patent
CA 1247339
- 1 - ABSTRACT OF DISCLOSURE A die head for a roll imprinting machine for the imprinting of edges of grooves preformed in a valve core for a rotary valve for use in a power steering gear, the die head supporting a circular cluster of radially disposed rolling die holders, each die holder carrying at an inner end an arcuate imprinting die and being mounted for partial rotation on a transversely extending axle, partial rotation of all said die holders being effected synchronously by action on each die holder at a position on the die holder more remote from the inner end of the die holder than the position of the axle and a valve core locater arranged to locate and hold the valve core at the center of the cluster for roll imprinting by the imprinting dies in a synchronous relationship and apparatus for actuating the die head including a number of racks, one for each die holder, supported for reciprocating motion in engagement with sectors of gear teeth formed on the die holders, a work spindle extending along the central axis of the cluster, a valve core holder the racks, the work spindle and the valve core holder being reciprocated in coordinated motions according to a predetermined relationship.
492157
Bereskin & Parr
Bishop Merrill E.
LandOfFree
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