Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 579
box is sunk so that the brassplate is flush with the surface of the floor. In the instance of a wood floor, two or threefloor-boards are taken up, and trimmingpieces are fixed between the joists, and alsothe firring pieces that may be necessary at theside (as indicated at Fig. 1753), to supportthe… … Fig. 1752.—Hole Cut in ^Masonry Floor to ReceiveBox of Spring Hinge.
Carpentry · Joinery
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