Mechanical Contracting & Plumbing January-December 1908 . Arrangement of Pipes and Valves. nificant compared wilh tlie coal-savingpossible in changeable weather. Thepiping in the plant is hung on the wallsnear the floor and the valves are locatedconveniently near doorways. MAKING A PIPE CONNECTION. Making a connection to a water pipewithout lowering the pressure is ratheran interesting operation. In making theconnection of an eight-inch pipe at Lind-say, Ont., this was done successfully byJ. Howard Bridge, without deprivingthe town of their water supply. Thework is usually done by closing down
Mechanical Contracting & Plumbing January-December 1908 . Arrangement of Pipes and Valves. nificant compared wilh tlie coal-savingpossible in changeable weather. Thepiping in the plant is hung on the wallsnear the floor and the valves are locatedconveniently near doorways. MAKING A PIPE CONNECTION. Making a connection to a water pipewithout lowering the pressure is ratheran interesting operation. In making theconnection of an eight-inch pipe at Lind-say, Ont., this was done successfully byJ. Howard Bridge, without deprivingthe town of their water supply. Thework is usually done by closing down ,tpumping plant for a couple of hours,but this was accomplished in this case H while the water in tlie pipes remained atits usual pressure. A special casting, shown in section inthe illustration is clamped over the place. Section of Special Casting Fitted OverPipe. where the connection is to be made. Anextension with a gate valve is leadedsecurely and in front of this is bolteda plate. Through the centre of this plateis a hole through which extends a cuttershaped like a capenters extension centre part is in the form of a screwand screws into the iron pipe while theextension bit cuts a piece out of thepipe. This cutter is worked by a ratchetwrench. When che piece of pipe is cutit is drawn out close to the plate. Thescrew enables the operator to do piece cut out is slightly less thanthe valve, so it draws through the valveeasily. During tlie operation the gate valve isopen. After drawing the cut piece ofIhe pipe to the plate the valve is plate is unbolted and the piece ofpips is removed. This is not a new idea^of Mr. Bridges but was used by himat Lindsay. DISPOSAL OF HEATING SYSTEMRETURNS. In installing a heating system in alarge factory recently I came across thefollowing pro
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