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Scientific American, Vol. 46, No. 21 (May 1882) (1882)

leaf 4

An illustration from Scientific American, Vol. 46, No. 21 (May 1882), 1882, leaf 4
id-^—H- - ^-,.y.-^f^0^^^x- ^ ^\^^^^ WH ^%^ … MEBBILLS WINDOW BLIND OPESATOB. will be raised, lifting the segmental wheel out of gear withthe bevel pinion, allowing the shaft to be turned so as toopen and close the blind slats. By turning the crank in the |reverse direction the toothed arc will be thrown down out jof gear and the segmental…

Patented · Patents · Plate · Shaft · Main track · Engraving · Upper grinding · Toothed arc · Scientific American · Feed water · Switch rails · Window blind · Shaft loop · Starch sugar · Steam steering

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