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 213
l*When all six holes are drilled, place the flanges of thetwo heads together and hold them in position Avith aclamp. The projection of the stuffing box on one headwill enter the oil reservoirs turned in the other head. Withthe heads securely held together, use one of the holes as aguide for the… … A Model Steam Turbine 211 The holes marked should be drilled through with a No.32 twist drill, this being a clearance hole for a No. 4screw. The holes drilled with the No. 42 drill are nexttapped with a No. 4-36 tap. After these holes are drilled, the washer can besoldered in place to form the oil…
Machinery
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