Apparatus for easy removal of large hydraulic cylinders from pre

Details Apparatus for easy removal of large hydraulic cylinders from pre Apparatus for easy removal of large hydraulic cylinders from pre

1986-03-24

1987-08-25

Spruill, Robert L.

Metal deforming

With means to drive tool

With means to permit tool positioning

72455, 7245309, 100214, 248637, B21J 1308

Patent

active

046884173

ABSTRACT:
A pull-down type forging press is provided with a horizontally extending tunnel in its foundation pit through which the large main cylinders which generate the forging press forces can be removed from the press. A vertical shaft in communication with the horizontal tunnel and a suitable crane located in the main building containing the press enable the main cylinders to be lifted from the foundation pit for maintenance or servicing. Guide rails on the floor of the tunnel and hydraulic jacks braced against the walls of the tunnel or other stationary structures in the foundation pit serve to push the cylinders under the vertical shaft over a straight course and also return them back into the proper position in the press after the servicing is completed.

REFERENCES:
patent: 545758 (1895-09-01), Aiken
patent: 1999249 (1935-04-01), Meyercord et al.
patent: 3931728 (1976-01-01), Trolle
patent: 3969921 (1976-07-01), Jonsson et al.

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