Die-Casting Machines e-bog

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. In 1872 a small band machine was patented, as shown in Fig. This was filled with molten metal from a melting pot, and when set on the bench, the palm of the hand was brought down forcibly on the wooden knob K. This forced down piston D and squeezed the metal out through nipple F. Other machines were invented in the following years for making medals, sewing machine bobbins and various other small articles. The type - metal apparatus was also improved by such inventions as that shown in Fig. 6, in which a much better design and arrangement were made of heating chamber, melting pot, cylinder, plunger, etc.