Lukin, James. [from old catalog] · New York, G. P. Putnam's sons · leaf 290
Fig., 94. up, and drilled in the centre for the main bolt to hold iton the top of the pillar, and which is represented here byR, and we then prepared a top and bottom plate, S andT, to be attached to the block when the latter was in 28o BOY ENGINEERS. place in the slotted arm. The lower plate was…
Handicraft · Steam-engines
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