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 235
t very easy to construct, although the model maker, atfirst thought, may think that it does not present any diffi-culties whatsoever. In designing safety valves the modelmaker must bear in mind the fact that the interior surfaceof the valve plug determines the pressure at which itwill bio woff—the… … Spring-.y^sJi^^^,.- Spindle
Machinery
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
