Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 212
xpansible Float … Fig. 55. Air Valve. Fig. 56. Air Valve. A tee with the outlet larger than the openings on the run, is known 176 STEAM AND HOT WATER FITTING 43 as a bullhead tee. Tees with all three openings of the same size areknovn as straight tees. It is far better to use reducing sockets or eclucing elbows…
Architecture · Building · Carpentry
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