. Locomotive engineering : a practical journal of railway motive power and rolling stock . lightest friction atthis point would impair its accuracy. Thesize is standard, 6.{ in. diameter of backflange, and it has a 5-in. dial and is 2 J4 over all. UTICA TEST PUMP AND V.\I,VE. The Utica test gage and pump is hereshown in combination with a gage and asquare inch valve. It works with a screw,and has no valves ; is made wholly of steammetal, and neatly mounted on black The engraving also shows the wayin which the test valve may be connectedwith any force pump. In the cut it i
. Locomotive engineering : a practical journal of railway motive power and rolling stock . lightest friction atthis point would impair its accuracy. Thesize is standard, 6.{ in. diameter of backflange, and it has a 5-in. dial and is 2 J4 over all. UTICA TEST PUMP AND V.\I,VE. The Utica test gage and pump is hereshown in combination with a gage and asquare inch valve. It works with a screw,and has no valves ; is made wholly of steammetal, and neatly mounted on black The engraving also shows the wayin which the test valve may be connectedwith any force pump. In the cut it with the weighted 3oke in valve consists of a brass base, pro-vided with a pipe A, to be connected with 370 a pump. At .ff is a hardened steel valveand seat, the latter having knife edges forthe valve to rest upon, and being madeexactly 1 square inch in area. The valveis guided by a guide stem in the seat. Thewater pipe A opens directly under thevalve, as shown by the dotted lines. Thevalve, when in place, makes a tight jointwith the knife edges, and the pressure be-. Stanpard Steam Gage. neath is confined until it exacth balancesthe combined weight of the valve, yoke C(which rests by a pointed projection onthe valve), and any extra weight whichmay be suspended from the lower hook ofthe yoke. With this the accuracy of ;age, at any specified point of its ,can be ascertained. Its action is certainand convincing, and its results as accurateas the .scales used for weighing its turning the wheel the water is forcedinto the test gage E and beneath thevalve, and also in the gage to be tested,which is placed at F. The pieces of ironattached to the yoke have been previously
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
