The wonders of modern mechanism. A résumé of recent progress in mechanical, physical, and engineering science (1896)
Cochrane, Charles Henry, 1856- · Philadelphia J.B. Lippincott · leaf 310
rsare used to insure tightness be-tween the pipes and between thepipe and rock. These packersare sometimes made of rubberand sometimes are simply inflatedbags. Inside the casing is placedthe tubing, through which theworking-barrel or pump is to beworked. This tubing- is madeanywhere from one to… … MA>KER OF nRILLING OIL-WELL. consists of a perforated 302 WONDERS OF MODERN MECHANISM. When a tool becomes dulled in the operation of drillingit has to be removed and a sharp one inserted in its place.At such a time it is customary to pump out the sand in thehole. Special pumps are made for this…
Inventions · Mechanical engineering · Machinery
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
