"A 200-Ton Plate Joggling Press
A plate joggling press for use in shipyards has been brought out by the Southwark Foundry & Machine Co., Philadelphia. In addition to being employed as a press, it is also possible to render the machine available for use as a manhole punch by removing a section in the base.
The equipment of the machine includes special dies consisting of a main lower die section and an upper pressure die which is fastened to the ram. The former is cut away to permit channels and bulb angles to be passed through the machine at right angles to the horizontal center line of the machine. The capacity of these dies is 12-in. channels or equivalent sections, and the dies are arranged to joggle both right and left hand, the upper die being equipped with an adjustable slide and a taper wedge for changing the amount of the joggle.
The lower dies have three vertical rams and one horizontal one, the last being employed for clamping the work. Two of the vertical rams are operated by hydraulic pressure and are employed to hold the material straight while joggling is being done, as well as acting as stripping dies when the pressure is relieved. The center ram is operated by a wedge and handwheel at the front of the machine and the whole lower die block has a horizontal adjustment through hand wheels and screws to center the dies for different classes of work.
The machine has open-hearth steel castings for the main top and bottom portions and the main ram which is 20 in. in diameter with a 12-in. stroke, is equipped with hydraulic side pullbacks. The rams operate under a hydraulic pressure of 1500 lb. per sq. in."
-The Iron Age, August 15, 1918.
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