Printing : a practical treatise on the art of typography as applied more particularly to the printing of books (1904)
Jacobi, Charles Thomas · London : G. Bell & Sons · leaf 33
6 PRINTING plunger a sudden thrust, which injects through an aperturesufficient of the molten metal to fill the mould and the … FlG. 7. TYPE-CASTING MACHINE. matrix, this matrix being held in position by a lever.Directly the mould receives the metal, it opens at a some-what low angle, similar to a door hung on hinges. At the WICKS ROTARY TYPE-CASTER 7 same moment the pressure on the lever, binding the matrixclose to the…
