Fluid control system for a track press

Details Fluid control system for a track press Fluid control system for a track press

1992-03-24

1993-03-30

Jones, David

Chain, staple, and horseshoe making

Chain making

Sprocket chain

59 11, 59901, B21L 906

Patent

active

051972735

ABSTRACT:
A fluid control system for a track press has first and second main fluid work circuits and a plurality of auxiliary fluid work circuits. The first and second work circuits are substantially similar and each has a pair of dual acting slave cylinders and one single acting master cylinder. The cylinder rod of each master cylinder is connected to the cylinder rods of the respective slave cylinders through a reaction bar. Each of the first and second work circuits has a fluid reservoir and a high flow capacity control valve in direct communication with a respective fluid reservoir and a respective master cylinder. During fast forward and reverse of the slave cylinders, the piston and rod of each master cylinder is advanced or retracted due to the interconnection with the reaction bar. During fast forward, fluid is drawn from the reservoirs at a fast rate to rapidly fill the large slave cylinders. This provides extremely fast cycle times.

REFERENCES:
patent: 3028723 (1962-04-01), Kaplan et al.
patent: 3075346 (1963-01-01), Quarve et al.
patent: 3075347 (1963-01-01), Bonifas et al.

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