Houghton's Concrete Worker's Reference Books, Випуск 4N.W. Henley Publishing Company, 1911 |
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Сторінка 14
... secured by a wet mixture . The proportions should not be leaner than 1 : 2 : 4 of cement , well graded sand and crushed stone of " in diameter . Where an aggre- gate of sand alone is employed this should be mixed 1 : 3 , using a sharp ...
... secured by a wet mixture . The proportions should not be leaner than 1 : 2 : 4 of cement , well graded sand and crushed stone of " in diameter . Where an aggre- gate of sand alone is employed this should be mixed 1 : 3 , using a sharp ...
Сторінка 23
... secured with simple molds , in chimney construction . At the top is shown how a quarter - round , placed in each corner of the square mold , will give an attractive corner to the chimney - shaft , even when used with a flat cap to the ...
... secured with simple molds , in chimney construction . At the top is shown how a quarter - round , placed in each corner of the square mold , will give an attractive corner to the chimney - shaft , even when used with a flat cap to the ...
Сторінка 25
... secured by using lengths of gas - pipe as the cores to mold same ; these also pro- vide spaces for placing the vertical reinforcement , as shown by the illustration at Fig . 5 , which also illus- trates the lock and mortar joint . By ...
... secured by using lengths of gas - pipe as the cores to mold same ; these also pro- vide spaces for placing the vertical reinforcement , as shown by the illustration at Fig . 5 , which also illus- trates the lock and mortar joint . By ...
Сторінка 30
... secured without abrupt changes in the wall it will be far more satisfactory than to change the thickness all at one point . The outside molds shown at Fig . 7 are adjustable to a difference in circumference of 20 " , thus permit- ting a ...
... secured without abrupt changes in the wall it will be far more satisfactory than to change the thickness all at one point . The outside molds shown at Fig . 7 are adjustable to a difference in circumference of 20 " , thus permit- ting a ...
Сторінка 33
... secured in employing the short guide - strips at each side of the vertical posts . As the forms are raised by the rope tackle , these strips prevent one side of the forms from being raised higher than those upon the opposite side , thus ...
... secured in employing the short guide - strips at each side of the vertical posts . As the forms are raised by the rope tackle , these strips prevent one side of the forms from being raised higher than those upon the opposite side , thus ...
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24 for full 50 cents AIR-BRAKE Alternating Currents boilers cement Chap CHART chimney construction Coal compressive strength concrete slate Contains core crete dynamos edition electrical employed engravings factor of safety flue FORMULAS AND PROCESSES fully illustrated GARDNER gas engines give height HENLEY'S TWENTIETH CENTURY HISCOX India Rubber INTER-LOCKING BLOCKS J. V. WOODWORTH JOSEPH G kerfs large chimney lathe load Locomotive machine machinist manufacture mechanical metal-lath methods Milling cutters MILLING MACHINES modern MOLDING CONCRETE CHIMNEYS MOLDING CONCRETE ROOFS monolithic chimney monolithic concrete chimney monolithic concrete roof morocco mortar motors nailed NORMAN W O'CONOR SLOANE Ornamental Concrete patent permits placed practical treatise raising the forms rods ROOF TILES sections secured sheet-iron dividing-plates shown in Fig Shows side slabs slate or tile small chimneys square foot STEAM ENGINEERING steel strap-iron thickness tion TWENTIETH CENTURY BOOK Valve Gear vertical reinforcement volume Walschaert Valve Gear wire worker