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Notes for mechanical drawing; arranged for the use of the students of the Mechanic arts high school and the Evening school of trades (1904)

Mathewson, Frank E. (Frank Elliott), b. 1869 · Springfield, Mass. · leaf 40

An illustration from Notes for mechanical drawing; arranged for the use of the students of the Mechanic arts high school and the Evening school of trades, 1904, leaf 40 — -y I I ■■ 0 ^ r^ */f-¥-2f- -i^ //- MECHANICAL DRAWING 17 Ratchet Wheel24 teeth | deep. See Formulae for Keys for size of keyway. Make drawing to scale full size Section on line a-b … MECHANICAL DRAWING 18 Governor Pulley Make drawing to scale full size

Mechanical drawing

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