Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 171
that will stand both hotand cold water service is made of pure canvas cut in stripsof the required width, y2, %, % inches, etc., and laid to-gether with a water proof cement having the edges for thewearing surface. This packing is called square canvaspacking, and can be purchased in any size… … Fig. 64deane piston-pattern pot-valve-type boiler feed-pump cylinder walls. This packing should not be allowed torun for too long a time before renewing, for the reasonthat pieces of it are liable to become loose, and be forced Boiler Setting and Equipment 159 along with the feed water on its way…
