H3 Horizontal Three-Throw Hydraulic Pump, O/No. 8963, c.1940

Order 8963 for the Ministry of Supply, c.1940

Gloucestershire Archives
Gloucestershire Archives
Gloucestershire Archives
Gloucestershire Archives

Ram 1 1/8″ dia. x 3″ stroke x 4480 psi working pressure.  The hydraulic medium was probably oil.

This order was for six pumps to drive 200 tonf Heading Presses, however around this time and over subsequent months substantial quantities of this type of pump, in excess of 100, were ordered by the M.O.S.

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