. Engineering and Contracting . tand 2000 J; Block—base-ment 12— and 3d ^^ Cinder concretepermitted forfloor slabs andfireproofing Sl. mxjo SOO 500 Reinforced —stand 2000 i*paln-rlj Same as brick Hard burned strefsel 50%^ithose lor stone W^\ 11 IM and other parts of pla[ ? ? f the 0 I full ( t stand lOOOi; p t block I a file > t 28 days, .\llowable working load is 90it perase may be revoked for causes. The same li-• 1:3 (sand) or 1:3:5 (crushed rock and gravel >p all work not within the requiK-mcnts of the ordinances Minneapolis demands that designers of concrete
. Engineering and Contracting . tand 2000 J; Block—base-ment 12— and 3d ^^ Cinder concretepermitted forfloor slabs andfireproofing Sl. mxjo SOO 500 Reinforced —stand 2000 i*paln-rlj Same as brick Hard burned strefsel 50%^ithose lor stone W^\ 11 IM and other parts of pla[ ? ? f the 0 I full ( t stand lOOOi; p t block I a file > t 28 days, .\llowable working load is 90it perase may be revoked for causes. The same li-• 1:3 (sand) or 1:3:5 (crushed rock and gravel >p all work not within the requiK-mcnts of the ordinances Minneapolis demands that designers of concrete buildings compute the dead and live loads and Philadelphia approves of reinforced concrete for all types of buildings whereby the design con-e requirements of good engineering practice,nforccd concrete New York demands that aggregate be screened crush stone or gravel, but ; blocks and t20008 at 30 days, * mprieonment. .beg ay I . .. , demands that the Building Superintendent keepof forms and file record with Builai. Assembly of Compressor, Container, Air Pressure ApplyingApparatus, Spraying Nozzle and Hose Connections, Etc. openings—a central opening for paint and an annular open-ing around the ceter from which the air is discharged as averitable blast under a pressure approximating 60 lb. to thesquare inch. There are separate conduits for air and paint,terminating in a right angle on each side, which forms anaxis for the nozzle and permits it to be operated at any de-sired angle. The paint is driven from the central outlet underlow velocity and is immediately picked up by the surround-ing air jet and carried to the painted surface. The air jetis too powerful for the paint to penetrate. It works in de-fiance of wind and gravity and, while there is a small amountof spattering from the surface, this loss is remarkably small;and the whole tendency is to spread evenly rather than tospatter. The manufacturers state that the machine has con-sistently maintained reco
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherchicago, bookyear19
