NOZZLE PRESSURE TEST AT PHILADELPHIA.
In order that the possible loss of pressure in a hose stream due to the curved arms of a fire appliance might be ascertained, a test was recently given at the high-pressure pumping station at Race street and Delaware avenue, Philadelphia. A doublearmed nozzle was attached to two two and one-halfinch hose li_____es siamesed into the base of the nozzle. Water was supplied by a fireboat, with a capacity of 1,300 gallons per minute. Gauges were inserted, one below the curved arm, and the other at the base of the play pipe. The following readings were taken:
These showed a maximum of a loss of ten pounds, which did not increase materially on increase of pressure. This nozzle is adaptable to various fire department devices, and, above all, for use in connection with hose streams in a stationary position without attention from a fireman. In view of the above test the committee on Science and Arts of the Franklin Institute would recommend the award of a certificate of merit to John T. and Peter F. Glazier, the inventors of the device. Adopted at the stated meeting of the committee on Science and the Arts, held on Wednesday, December 7, 1904.
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