English Mechanic and Mirror of Science and Art, Том 461888 |
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Страница 128
... brass head , then the commu- tator pushed on to the spindle ( a drop of white hard varnish having been previously applied thereto to insure adhesion ) ; and lastly , the two projecting ends of the wire , cleaned from their covering ...
... brass head , then the commu- tator pushed on to the spindle ( a drop of white hard varnish having been previously applied thereto to insure adhesion ) ; and lastly , the two projecting ends of the wire , cleaned from their covering ...
Страница 307
... Brass . - You will have to bore them ; no acid will do your job . - JACK OF ALL TRADES . [ 63718 . ] - Boring Holes in Brass . - Nothing will beat a flat or fluted drill for this if driven at a good speed . Acid will not make a clean ...
... Brass . - You will have to bore them ; no acid will do your job . - JACK OF ALL TRADES . [ 63718 . ] - Boring Holes in Brass . - Nothing will beat a flat or fluted drill for this if driven at a good speed . Acid will not make a clean ...
Страница 436
... brass milled- head screw B. Into the underside of the base are screwed two round head brass screws , so placed that they will form with B an equilateral triangle . On these three points in the base the instrument stands steadily . In ...
... brass milled- head screw B. Into the underside of the base are screwed two round head brass screws , so placed that they will form with B an equilateral triangle . On these three points in the base the instrument stands steadily . In ...
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