A New Hose Coupling.
We illustrate herewith a new coupling for hose, patented and manufactured by the National Hose Coupling Company of Pomona, Cal. These couplings, for a description of which we are indebted to The Scientific American, may be instantly connected or uncoupled, without the use of a spanner, and are, therefore, especially adapted for attachment to fire hose, in the use of which even a small fraction of time is of such great importance. The smaller coupling, shown in Fig. I, is to be used in connection with garden or street washing hose. This form of the coupling is provided with a forked hook pivoted on diametrically opposite sides of one-half of the coupling, the hook being cam-shaped and adapted to engage lugs upon the opposite half of the coupling, so as to draw the two parts firmly together, thus compressing the elastic packing contained by the coupling, and insuring a tight joint.
The fire hose coupling, shown in Fig. 2, united and separated involves the same principle as that of the garden hose, with the addition of a lock or fastener, which holds the double hook firmly in position. This coupling, while it may be instantly united, and quickly separated, is, it is claimed, no more liable to accidental separation than the screw coupling. The lock consists of a loop pivoted to the back of the double hook, and adapted to engage a stud projecting from the side of the coupling when the parts are united. A spiral spring surrounding the pivotal pin of the loop automatically throws the loop into engagement with the stud. This loop, which serves as an automatic lock to the hook, also answers as a convenient handle for releasing the coupling.
It will thus be seen that neither spanners nor wrenches of any kind are required for operating the coupling. The cam surfaces of the hook, it is claimed, insure a sufficient compression of the elastic packing contained by the coupling to prevent any leakage.
THE ST. LOUIS Water-Works.—“I expect to see the new water-works in operation in about two years,” said Water Commissioner Holman of St. Louis, Mo., the other day in answer to a query from a reporter.
“Will the delay in awarding the pumping engines contract have any bad effect?”
“No; if they are let before spring it will be all right. The engines will take fifteen to eighteen months to construct, and perhaps six months to erect. The foundations will be ready by that time, and the settling basins will also be finished in time.”
“Then we shall have an abundance of good, clear water for all time to come?”
“agree as to the good and clear part of it, but there is no such thing as rest in the matter of water-works construction. We may have enough for ten or fifteen years, but when a city is growing like St. Louis keeps on growing we must keep on increasing our capacity.”
“Is there any danger of a water famine before the new works are completed?”
“Of course there is a liability to accident just as a man walking along the street may get killed by a brick falling on his head from the fourth story. But there is no prospect of a shortage, although we may not be able to give such a full supply as we are now.”