New Meter Tester
The object of this meter tester is to provide a type of device which can be easily carried by the meter tester from house to house and may be operated by a comparatively unskilled workman. In the illustrations Fig. 1 shows a front elevation of the meter tester, a portion of the receptacle being broken away to better illustrate its structure and Fig. 2 is a fragmentary side elevation looking from the right of Fig. 1.
The improved meter tester comprises a gage receptacle 1 which is preferably provided with a concave bottom 2 having a drain cock 3 at the lowest point thereof so as to insure the draining of all the water from the receptacle. The top 4 of the receptacle is convexed and has a tubular extension or gage tube 5 projecting from the crown thereof. The convexed top avoids the forming of air pockets and when the receptacle is filled all the air is driven out and the cubic contents of the measured liquid are, therefore, not varied as would be the case were air pockets present.
The receptacle is provided with three legs 6 and 7, the legs 7 being provided with means 8 for leveling the receptacle. The spirit levels 9 are mounted on the top of the receptacle, these levels being mounted at right angles to each other so that the leveling may be very rapidly accomplished by the adjusting of the screws 8. A gage glass 10 is mounted on the gage tube 5 and is provided with an indicia member 11 having two sets of indicia reading oppositely from the zero point 12. The inlet 13 is provided with valves 14 and 15, these valves being of different capacities, that is, their orifices differ so that water may be admitted rapidly or slowly.
In using the gage two operators are required. The gage is first positioned near a cock to be connected thereto as by means for a rubber hose or the like and properly leveled. The drain cock 3 should be opened to insure that the gage receptacle is completely drained. One operator is then posted at the meter to read it and signal the other operator when ready as, for instance, by tapping on the pipes where the operators are separated considerable distances. The operator at the gate opens the valve, having the larger capacity, as 14, and when the meter registers one cubic foot, the operator at the meter signals the operator at the tester, who shuts off the water. The operator at the tester then notes the level of the water in the gage glass, 10. and reads from the scale behind the glass the accuracy of the meter in per cent, fast or slow. The water is then drained from the tester and the test repeated using the valve with the smaller opening 15. In this lattertest the meter moves very slowly such as would he occasioned by dripping of the faucet or a small leak; while in the former test the meter moves with approximately the same speed as would be occasioned by the ordinary use of a faucet, thus the meter is tested under the two most usual conditions obtaining with ordinary yater meters.
The meter tester is the invention of Earl E. Norman, Kalamazoo, Mich., whose application was filed September 30, 1922, the serial number being 591,523. The patent was granted November 18, 1924, the number being 1,515,746.