The industrial and artistic technology of paint and varnish (1917)
Sabin, Alvah Horton, 1851-1940 · New York, J. Wiley & Sons, Inc.; [etc., etc.] · leaf 292
PROTECTION OF METALS AGAINST CORROSION. 269 the quantity of sand introduced into the current of air. This machine was patented Dec. 25, 1894; No. 531,379. In the Paxson-Warren machine, shown in the next %ure, the Pipefrom WARREN'S SAND-BLAST. Air Receiver (TRADE NAME, P»XSON:VUkRREN^ … feed of the sand is regulated by a revolving piece, or valve, which covers the opening in the bottom of the hopper to the extent desired to let the proper quantity of sand fall through it and into the air-pipe. In the machine patented by J. M. Newhouse of Columbus, Ohio, shown in the illustration…
Paint · Varnish and varnishing
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