A WATER MEASURING DEVICE
A device called the piezometer has been invented. which, will probably be of great service to those engaged in the water and fire services of the county. Briefly described, its essential features are as follows:
It is a device for measuring both the pressure and the gallons of water being delivered by fire streams. Even an inexperienced person can observe the reading and ascertain the pressure and gallons, without the use of formulas or computations. The device consists of a form of pitot tube, with a special form of cutwater, a shield that prevents spattering and materially aids in keeping the device in place. In fact, it is quite impossible for an incorrect reading to be obtained either by pushing the piezometer far down into the stream, or pulling it out too far. or even forcing it to the extreme right or left. The only variation from the true pressure that can occur, is, when the piezometer is brought to very extreme positions where only a part of the outer circle of the stream of water is in contact with the tube, and then a noticeably irregular and unsteady action of the needle plainly indicates a false reading. The object of the device is to afford a ready means for measuring the discharge of pumping engine, steam fire engine or waterworks systems during special tests of these appliances; also, to serve waterworks superintendents and district chief engineers at the time of a fire; it being considered that a record of some of the fire streams in use at time of fire would enable better statements to be furnished of their actual efficiency and thus avoid many controversies that afterwards arise between city officials and fire insurance adjusters.