The Popular Science Monthly, Volume 98McClure, Phillips and Company, 1921 |
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Page 85
Drilling Holes through Metal By H. H. Parker FIG . 2 . FIG 5 . Ten illustrations are here given which clearly explain the best method of drilling through metal , true to mark " Hexa " -More Powerful than TNT By Graser Schornstheimer.
Drilling Holes through Metal By H. H. Parker FIG . 2 . FIG 5 . Ten illustrations are here given which clearly explain the best method of drilling through metal , true to mark " Hexa " -More Powerful than TNT By Graser Schornstheimer.
Page 33
... metal frame . Since aluminum is used in the struc- ture , one might question the possibility of rivets in this soft metal holding under the strain of the perpetual vibra- tion imparted by the motors . It would seem that the persist- ent ...
... metal frame . Since aluminum is used in the struc- ture , one might question the possibility of rivets in this soft metal holding under the strain of the perpetual vibra- tion imparted by the motors . It would seem that the persist- ent ...
Page 55
... metal frame fastened to the bot- tom of the heel supports the cast steel weight , and the prisoner feels the brunt of the burden he must lift only when he attempts to walk . It is necessary for him to walk very slowly when he is ...
... metal frame fastened to the bot- tom of the heel supports the cast steel weight , and the prisoner feels the brunt of the burden he must lift only when he attempts to walk . It is necessary for him to walk very slowly when he is ...
Contents
Manufacture Your Wrenches from Steel Tubing | 98 |
Copying Books by the MotionPicture | 104 |
Cutting Large Keyways by Hand | 110 |
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