boomer press
A now obsolete modified form of the STANDING PRESS . The
power of the boomer press was obtained by a
combination of four levers working on toggle
joints, through which passed a right and left hand
screw. The rotation of these screws caused the
pressing surfaces to approach or move apart with a
uniform motion, according to the direction of the
rotation. This press had several advantages over
the regular standing press, including: 1) once the
pressure was applied it did not release slightly
as the ordinary press is likely to do, so that the
material under pressure remained under full
pressure, and could, therefore, be pressed in
somewhat less time; and 2) the enormous pressure
it was capable of exerting. (8 , 97 )
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