. Practical concrete work for the school and home. PLATE 44 PRACTICAL CONCRETE WORK 155 fonncil will l)c slcam-li^Iil witlxMil calkiii:^. Twd Z-hars y\by 3 inches are cut out, as shown in one of the detailedsketches, to receive rollers and bearings. These rollers are tomake it easy to slide a platform bearing the objects into thechamber or even to slide the objects themselves in whileresting- upon the rollers. These Z-bars are riveted to the steelplate sides of the chamber so that the bearings of the rollerswill be SVi inches above the bottom of the chamber, as door to the chamber is
. Practical concrete work for the school and home. PLATE 44 PRACTICAL CONCRETE WORK 155 fonncil will l)c slcam-li^Iil witlxMil calkiii:^. Twd Z-hars y\by 3 inches are cut out, as shown in one of the detailedsketches, to receive rollers and bearings. These rollers are tomake it easy to slide a platform bearing the objects into thechamber or even to slide the objects themselves in whileresting- upon the rollers. These Z-bars are riveted to the steelplate sides of the chamber so that the bearings of the rollerswill be SVi inches above the bottom of the chamber, as door to the chamber is made of No. 18 gage steelplate riveted to 2-inch by 2-inch angles and provided with aliner as shown. The door opening is reinforced with thesame size of angles at the sides, top and bottom. At the bot-. lU^O, tigL,,,,,,,3J||!i I ^S-, Section *t a-B-CD 45 Front Elevation tom of the door there is a bent strip of No. 18 gage steelplate attached to serve as a drip to catch and properly disposeof the water condensed from the steam. The door is attachedto the chamber by two 4 by 5-inch brass hinges which areriveted to the door and to the door frame. To make the door opening practically steam-tight, a rubbergasket is attached to the inner face of the outside edge of thedoor. Latches are attached to the door as shown. The bot-tom of the chamber is fitted with flanges for overflow anddrain pipes as shown in section B-B. 156 PRACTICAL CONCRETE WORK A 1-inch steam pipe fitted to flant;es runs longitudinallyacross the bottom of the chamber, as shown in section B-Band section ABCD. The lower side of this pipe is perforatedat intervals of 1}^ to 2 inches by small holes to perrriit en-trance of steam from the source of supply. As shown inPlate 44. the outer end of this pipe is connected
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Keywords: ., bookcentury1900, bookdecade1910, bookidpracticalcon, bookyear1917
