纽约消防栓测试。

纽约消防栓测试。

{Continued from last week.)

READING Foundry Company, Limited, successor to the Mellert Foundry and Machine Company, was represented in the corporation yard by Messrs. P. D. Wanner and A. H. Meliert. It exhibited Meliert valves and hydrants. In the latter, which were patented June 10, 1890, all the working parts can be operated with an ordinary monkeywrench, and the valve, valve seat, and drip lifted out of the standpipe with perfect ease in a few minutes. The Meliert hydrant gives ample area and free flow of water. The drip is positive and operated by the main valve stem at the top of the standpipe, draining the hydrant completely, as shown in the sectional view (Fig. A); thus rendering it perfectly secure against freezing, and obviating the necessity of a frost-iacket, which in any event does not prevent freezing, but is used rather on other hydrants to permit of the removal of the standpipe through the frost-jacket, so that the valve and valve seat may be reached for repairs, while in the Meliert the valve, valve seat, and drip valve are readily drawn up through the standpipe without its removal, and are independent of it. All its parts are interchangeable, and the threads, being at the top of the standpipe, can be readily inspected and oiled. An examination of the valve can also be made without shutting off the water in the main. The crossbar and thread of the valve stem being above prevents all torsional strain upon it,making the valve close firmly, and enabling it to be opened freely against the heaviest pressure. The valve seat is of solid brass and the valve of either leather or rubber. The seat is drawn down the base by brass nuts at the end of the rods extending from the base, pressing the stiffening ring down upon the distance pieces and securing it as if it were part of the base, leaving the standpipe entirely independent.