Lukin, James. [from old catalog] · New York, G. P. Putnam's sons · leaf 290
ip along it length-wise. In the slot, therefore, is shown, just abov^^, a slid-ing piece of brass, which, strictly sp^aking, ought to bechamfered or cut on each side with a V-shaped groove,and the groove or s-lot in the arm ought to have been soshaped as to fit into this. Of course we had no means…
Handicraft · Steam-engines
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