EUREKA SHUT-OFF COUPLING.
The two and one-half-inch Eureka, shut-off coupling, invented and patented by Alvarado Mayer of Detroit,Mich., is a new invention for shutting off water at the hose pipe The coupling is placed in the heel or butt of hose pipe, there to remain. A, is the shut-off coupling; B, the hose pipe; C the nozzle tip. The coupling opens two and one-half-inch same as the hose; the male and female part of coupling have the same thread as hose where used—so, if occasion calls for it, the coupling will go anywhere in line of hose. The coupling opens and shuts by the action of screws, and thus is easy on the hose. It opens and shuts the same as a fire hydrant. The weight of the coupling is eight pounds -about the same weight as the ordinary one and one-half-inch shut-off nozzle, and this weight,being in the heel of the hose pipe,is easy to handle. There is no packing about the joints; nothing to rot. The working parts of the coupling are easy to operate, as the parts are balanced under pressure. The advantage of placing shut-off coupling in the heel of the hose pipe are many: It does not alter any existing arrangements of pipe; the same nozzle tips can be used; it also allows different size tips to be used on the same fire; shutting off coupling, change can be made. Another advantage is the fact that often not enough hose is run out to reach the fire. In this case screw the hose pipe off the coupling, leaving the coupling behind in the end of the hose line; attach more hose to the coupling; go ahead with the hose pipe,leaving the coupling behind in the hose. Should occasion call for it, the coupling can be opened and shut here, just as in the heel of the hose pipe—thus saving time. The old way in a case of this kind is to send a man to the engine, to stop that, and then again to start the engine. But when his coupling is shut, the thing is done The inventor claims that the problem of shutting off water at the hose pipe is thus solved after many years of experimenting. Chief James R. Elliott, Detroit Mich., fire department, has several shut-off couplings in use. The one and one-half-inch shut-off nozzle, is p’aced on the end of the hose pipe in the usual way. A, is the shut-off nozzle: B, the hose pipe; C, the nozzle tip. This tip can be bored any size up to one and one-half-inch; so that any size of stream ordered will be sent. The shut-off nozzle is made on the same principle as the two and one-half-inch shutoff coupling. The shuting-off parts are balanced underpressure, easy to operate, and easy on the hose, there is no water ram on line, no packing of any kind used about joints, no rot, it is always in order. The weight, when ready for service, is about four pounds This lightness of the “Eureka” shut-off nozzle, is not obtained by sacrificing any part. There is plenty of metal in all its parts. It also throws a fine stream, any size.