The American journal of the medical sciences (1827)
[Thorofare, N.J., etc.] Charles B. Slack [etc.] · leaf 65
ts to the chain " C," at the other is opened the steel handle or lever " F," which being alternately raised and de- pressed in a see-saw manner, communicates an advancing movement to each rod in turn, the extent of this advance being governed by the catches " D" on each side the barrel which play… … The chain is made precisely as is the ordinary chain saw, with the exception of the teeth, and is stronger and heavier, with each edge equally obtuse, except for certain purposes when the inner or cutting edge is somewhat bevelled. The interior arrangement and the joining of the several parts, will…
Medicine
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