Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 632
, connecting water and gas valve; G and Gi, Nuts to holdvalve to yoke; H and Hi, Glands; I and Ii, Nuts for tightening the glandsand packing; J, Gas Valve Body; K, Gas Valve Seat; L and Li, Inner andOuter Gas Regulating Sleeves; M and Mi, Compression Spring Adjustmentand Gas Valve Cap; N, Collar… … Fig. 8. PILOT LIGHT
Building materials
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