Drop Forge Die Shop

This shop has a floor space of 20,400 square feet. With full equipment of most modern die sinking tools.

View Of A Section Of Projectile Forge Shop

This shop has a floor space of 22,000 square feet and is thoroughly equipped with the necessary hammers, presses, furnaces, etc., for the forging, punching, closing in, treating and tempering of all sizes of armor-piercing and explosive projectiles and shells.

Forging Hollow Heavy Shaft

No. 22. The block has a hole bored through its center, and in this the mandrel is inserted, the tube being forged around it. The hydraulic pressure for this 5,000-ton press is furnished by Whit-worth pumping engines. This department contains also a 2,500-ton press of similar design.

Oil-Tempering Heavy Shaft

Showing a shaft weighing about 33,000 pounds being taken from the vertical heating furnace and suspended over the oil-tank preparatory to being lowered for tempering. The heating furnace and oil tank are served by a sixty-ton traveling crane and forty-ton jib crane. The shrinking pit for assembling is situated between the heating furnace and. oil tank.

Armor Plate Machine Shop

The varied and complex machining required on armor plate demands tools of enormous size and strength as well as varied capacity. The equipment of this shop consists of large saws, planers, etc., together with numerous portable drill presses, grinders, etc. In this shop the different groups of armor are assembled in the positions they will occupy on the vessel and are finally inspected before shipment.

Forging Armor

After heating, the ingot is placed under a 14,000-*on hydraulic forging press and forged to the required dimensions. The press is served by two 200-ton cranes with hydraulic lift and pneumatic travel. Weight of the porter-bar and chuck which hold the plate for forging is 125,000 pounds, exclusive of counter-weights used.