Device for controlling the speed of a mandrel in continuous reta

Details Device for controlling the speed of a mandrel in continuous reta Device for controlling the speed of a mandrel in continuous reta

1978-04-20

1980-02-05

Mehr, Milton S.

Metal deforming

By use of roller or roller-like tool-element

With tool inside hollow work

72 97, B21B 2502

Patent

active

041865855

ABSTRACT:
A device for controlling the speed of a mandrel in a continuous retained-mandrel rolling mill, such device comprising a rod having a double rack provided at one end with a means for removably securing an end of a mandrel and a number of pinions engaging the rack on the rod, each pinion being driven in rotation by a corresponding motor-driven shaft which, via respective clutches is connected to a motor and speed-reducing group provided with a brake for each motor-driven shaft. Further, the device includes a second set of pinions engaging the rack on the rod, each pinion being driven in rotation by a corresponding motor and speed-reducing group provided with a brake.

REFERENCES:
patent: 1808631 (1931-06-01), Bungeroth
patent: 1936790 (1933-11-01), Heetkamp
patent: 2145184 (1939-01-01), Long
patent: 3416346 (1968-12-01), Arrington

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