Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 110
Here 8-in. by 4-in. wooden joists e supportthe flooring planks, which are 3 in. thick,on which a layer of mortar, § in. thick, isspread. Floor-boards 1J in. thick, laid onthe top of this, form the working surfaceof the floor. Sometimes the floor-boardsare laid in two thicknesses, crossing eachother… … Fig. 388.—Solid Blocking carried on Fillets. beam in case the latter should be burntthrough, the upper end of the beam is cutaway at both ends so that it can fallfreely. Wood = Block Floors. Solid wood-block floors are now muchused in the basements of dwelling-houses,on the ground floors of public…
Carpentry · Joinery
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-658-394.webp)
