Document wrz1b57apQRrDb2BQ8Ogvmgx3

More PRACTICAL IDEAS. Wire-Braided Hose Stops Vibration W manufacture rubber conveyor bells si the Thermoid Co, and curing these belts takes place In long presses. Hy draulic pressure is applied to beha by 12 pistons. Pistons are worked by water under 2200 psi from a long, reels1 ilandpipe. Before, each piston was connected to standpipe by rigid metal pipes of 90-deg bend. Vibration caused connecting pipes to bieak. ,We licked this problem by using our own product. Answer wss high-pres sure, powerflex, hydraulic, wire-braid hose. Pipes were replaced by 12 short lengths | about IS inches long) of hy draulic hose taking a 90-deg bend. Hose is built to stand these pressures, yet is flexible enough to ebsorb vibration caused by hydraulic-pump pulsations as pistons raise the bottom half of press against top. After four years, hose connections are still going strong. No more lost pro duction and no mointenance since hose was Installed. Bucko Jones Trenton, N. J. lee Does Damage Wg LCAnftco it's expensive to replace a split 14-in. OS&Y (outside screw and yoke) gate valve. Valve wos on ex posed line used to load a sludge vessel. With winter coming, wo took precau tion by pumping back (draining) the line. The day after an U-degree night, we filled line for loading and had sludge all over our sewage-disposal plant next morning. Valve froze end split. Reason wee that when a gate valve Is closed while under pressure, yoke slays (ulk sketch, of whatever line carries (except steam). In our case, where line ean be re lieved of pressure, proper freeze-up safe guard Is to leave valve at least hall open. In this way yoke empties out. On other exposed valves that cannot be left open (line under pressure) drill and tap for two Vfe*in.-pipe plug*. After valve is closed, remove both the `'vent" and drain plugs. F J Aadaliko Brooklyn, N. V. Keeping Valve Stem Clean Wc havb a tough problem with flyash and coal dust, si do most pulverized- cosl-buroing plants. We find that a piece of rubber hose, same length as stem of a rising steam valve, makes o good protector. It also keeps the threads clean. Rubber it also a safety device If valves are likely to be bumped. For valves in vertical position, cut hose an inch or so longer than stem. Plug end of hose with a wooden plug or what ever is available or handy. Jenar Tahcak East Alton, IU, Special Clamp Vise Skktcjj shows unusual bolding built to do a special job. ft he* pi very useful and handy at the bench on platen of a drill press. Clamp is machined of good steel jews hardened end tempered. Pb*1') with clamp-bolt welded to It iUffij either jaw (round or angle) to as needed. Size of this device dep**| on your, own need. Wo made oaf* handle 2-in. angle iron, and V4* w j in. round stock. C H WttXKY . Penacook, N, fl- (Continued on page 134) 132 PUNT OPERATION AND MAINTENANCE SECTION C0/ -rSfesSS 1gV) OREZSQISNTIENG\MCOuM,~PO.~UNT UiKoiOmi COTnbi*>o rnniiimim o' *"* nnen to OZONE and MOfSTURE w hiRh, tnnntiu atrnrtytfi, tenyofir i % ni) ittal/'CiMC quicMy >* 11<Iot ui*t anfclooa. tRuoos*rt C -* piamuin nnll mohot </j* C R P G C T *C;9 . ' ` ** ' U. S. Uskorona was the only tape of 4 lead ing brands that was still intact after a 4-hour corona-(ozone) resistance test. All others broke down. Even after 500 additional hours of consec utive exposure, Uskorona remained as fresh and .corona-resistant as at the start. More amazing stilt, Uskorona is the only tapis (hot is resistant to both corona and moisture. No wonder many a leading power company has made Uskorona standard for underground . splices^ joints and connections. It is thor oughly effective on single or multiple cable, on secondary network systems, street lighting circuits and transformer leads. For more data on moisture- and coronaresistant Uskorona, write to address below. _ STATES RUBBER COMPANY TAPE DEPARTMENT . ROCKEFELLER CENTER, NEW YORK 20, N. Y,