. The sanitary news : healthy homes and healthy living : a weekly journal of sanitary science. Fig. 7- Showing ball in its seat and air currents induced in systemshown in House Fig. 7. outward pressure. Why this trap should dothis effectively, may perhaps be understood onnoticing the facts, again repeated. First.—There is no enlargement of the water-way of the trap, and consequently no loss offorce in the sewage discharge to move the ballquickly and to scour out the trap, and there isno sediment chamber. Second.—The ball seats itselj with muchcelerity and precision and holds a deep
. The sanitary news : healthy homes and healthy living : a weekly journal of sanitary science. Fig. 7- Showing ball in its seat and air currents induced in systemshown in House Fig. 7. outward pressure. Why this trap should dothis effectively, may perhaps be understood onnoticing the facts, again repeated. First.—There is no enlargement of the water-way of the trap, and consequently no loss offorce in the sewage discharge to move the ballquickly and to scour out the trap, and there isno sediment chamber. Second.—The ball seats itselj with muchcelerity and precision and holds a deep Fig. 8. Section of basin trap showing closure of vent connectionduring a discharge. Third.—The ball rests upon the fiixture, andnot upon the discharge, during the operation. Fourth.—The ball is thoroughly scraped andfreed from adhesive matter by passing throughthe closely concentric ring just above it twice oneach operation. Fifth.—All the water seal is covered and bythe valve protected from evaporation and inju-rious contact with the sewage air. With all the points covered in one simple de-vice, without sacrifice of any established advan-tage of the common S trap, is also secured aconvenience of inspection with or without anydetaching of the trap. AS TO VENTING TRAPS, It can be done just as well with these traps aswith any others, as shown in figures 7 and 8,and with the advantage that during a discharge through a trap of sufficient volume and force tofill it the ball valve is carried forward to andcloses the mouth of the venting pipe, and mustoperate to a very considerable ext
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Keywords: ., bo, bookcentury1800, bookdecade1880, bookidsanitarynewsheal08chic
