. The Canadian journal of industry, science and art. at Fig. 3.) to this tube a small stem r is attached, which screws into the under side of the upper stage plate by a left handed screw, a small steel screw s passes through the tube, the point of which fits into the spiral groove h i of the lever. The upper stage plate slides in dove-tailed grooves made in a frame of brass, and this frame slides in the dove-tailed grooves at a b and d c but at right angles to the former. The arm which carries the compound body rises from the projection shown at 1c; by turning the milled head g the acti
. The Canadian journal of industry, science and art. at Fig. 3.) to this tube a small stem r is attached, which screws into the under side of the upper stage plate by a left handed screw, a small steel screw s passes through the tube, the point of which fits into the spiral groove h i of the lever. The upper stage plate slides in dove-tailed grooves made in a frame of brass, and this frame slides in the dove-tailed grooves at a b and d c but at right angles to the former. The arm which carries the compound body rises from the projection shown at 1c; by turning the milled head g the action of the spiral groove on the pin iu the tube e moves it, and with it the stage to which it is attached, to or from the hand; while by moving the milled head backward or forward, a transverse motion is produced, and by com-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Canadian Institute. Toronto : Canadian Institute
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Keywords: ., bookcentury1800, bookdecade1850, bookpublishertoron, bookyear1856
