turbed. obtained by fastening cast pattern plates against one ——— which renders it possible to tamp in. the most advan- side-plate of the mold. By a similar means blocks The twentieth annual report of the commissioners tageous manner. Fig. 2 shows a tamper at work, and with curved or grooved ends… … is in contem- block. plation. The Special time- commissioners saving features consider that the public agitation to restrict the fur- mechanism is controlled by levers which are simply have been adopted by the various manufacturers, but ther abstraction of the Niagara River water is well and…
Internet Archive · Public domain (published before 1931). Free to use for anything.
