Model making; including workshop practice, design and construction of models, a practical treatise for the amateur and professional mechanic .. (1919)
Yates, Raymond F. (Raymond Francis), 1895- ed · New York, The Norman W. Henley Pub. Co. · leaf 325
e bestworking distance for the coherer plugs was found to bebetween % and % inch with the space between practi-cally filled with filings. CHAPTER XXIV A MODEL CRANEThe design of the crane—Its construction—The electrical driven hoist. When the amateur constructor interests himself inmodel crane… … Fig. 232—The plan of the electric derrick crane amusement derived from them is great. Of all the manykinds, the most common is the derrick or jib crane. Thistype is seen in lumber yards, stone quarries, steel mills,and especially in construction work. It consists of a mast, Fig. 232, to which a…
Machinery
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