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Scientific American, Vol. 56, No. 16 (1887) (1887)
leaf 3
t the plate, the holder is held with its narrow adinitted to equalize the pressure and prevent collapse. plate is applied to the other, the ribs will enter the end resting on a support at a slight angle, then the ex- This action of the valve is automatic, and in case of grooves and the plates will… … 2° Brurdustries. | NS pts oe reese eeieieies Hass a see an FS les me es es E OTAL LENG TW 162 6 SoG peep Se ee es eee ey LoneitupinaL SECTION. © 1887 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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