Heating and ventilating buildings : a manual for heating engineers and architects . always C^G above the water-line. B A large number of traps aremade with a hollow metallic floator bucket, so arranged as to opena valve when the bucket is full ofwater. One form is shown inFig. 162, in which the water enters the trap at A, filling the Fig. 162.—Bucket Trap. space 5 between the bucket and the walls of the trap. Thiscauses the bucket to float, and thus to close an orifice in thedischarge-pipe V. When the water rises above the edges of thebucket it flows into it and causes it to sink, which opens
Heating and ventilating buildings : a manual for heating engineers and architects . always C^G above the water-line. B A large number of traps aremade with a hollow metallic floator bucket, so arranged as to opena valve when the bucket is full ofwater. One form is shown inFig. 162, in which the water enters the trap at A, filling the Fig. 162.—Bucket Trap. space 5 between the bucket and the walls of the trap. Thiscauses the bucket to float, and thus to close an orifice in thedischarge-pipe V. When the water rises above the edges of thebucket it flows into it and causes it to sink, which opens thedischarge-valve at V. The water is forced out through the pipeB by the steam pressure acting on the surface 55. The bucket traps are made in great variety, both as toform of valve, guides for bucket, etc. Fig. 163 shows oneof the traps which is in common use, with all details of con-struction. Another extensive class of traps are made so as to be closedby the expansion due to increase in temperature. These trapsdiffer from each other very much in form ; the principle, how-. 196 HEATING AND VENTILATING BUILDINGS. ever, is in all cases the same. Thus in the diagram, Fig. 164,steam is supplied 2XA and discharged at B. The bent springs5 are prevented by guides from moving laterally, so that theexpansion due to heat causes a motion which closes the orificein the discharge-pipe B. When the water in the traps cools
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1910
