US1230808A - Connection for gas-mains. - Google Patents

Description

s. B. SHELDON =& K, c. noxnz -CONNECTl0N FOR-GAS MAINS. APPLINTION FILED APR. 1. m5.

1,230,808; Patmu 19,1917

SAMUEL B. SHEIJJON AND KINNEY C. HOXIE, C'F DULUTH, Mm'NESOTL T0 all whom may concern:

Be it known that we, SAMUEL BISHELDON and KINNEr C. Hoxm, citizens of the United States, and residents of Duluth, in' the county of St. Louis and State of Minnesota,

have invented certain new and useful Im- In the construction of by-product co l e ovens it is customary to use two gas mains,

gas pipes are accessible for examination and one for rich gas and one for lean gas. From each oven there is but one exit pipe for gas;

consequently it becomes necessary to install upon this gas pipe two valves with a con- I necting pipe between, which valves control the inlet of either the rich. or the lean gas to their respective mains. For structural reasons it is necessary that these mains be parallel'and but ashort distance from each other; and as a consequence, troubles have arisen owing to-expansion and contraction of the gas.v pipe, commonly known as the v collecting pipe, which connects --the two gas mains. Furthermore, owing to deposit-- oi pitch. and tar in the connecting pipe, it

acent gas mains, upwardly-extendn1g:bell connections on said .mains, said mains pros is necessary that convenient means should be provided whereby access to the interior of the pipe and the valves can be readily had. Our invention comprises anarrangement of parts wherebythe diificulties heretofore experienced by expansion are overcome; the

valves are 'abcessible both for observation and removal, and the entire interior of the cleaning.

Our invention will be more readily under stood by reference to the drawing wherein the-figure is a transverse section through two gas mains and our novel connection between the same.

Referring more particular-1V to the drawing it will be seenthat we provide adjacent rich and lean gas mains 10, 11. Mounted upon the mains are valve housings 12, 13, having at their lower ends removable valve seats 14, upon which-the valves 15, may rest. These valves are connected to the stems 16, and suitable operatingineans may be employed :Eoractuating the valves. The

CONNECTION non ens-Mains,

Specification of Letters Patent.

Patented June 19,1917.

Application filed April 1, 1915, scrim No. 1 8 ,601.

nections 17, adapted engage with the spigot ends 18,- of the connecting. pipe. This I trouble caused by the expansion of the connecting pipe between the two valve casings and the difierence of expansion between mains 10 and 11, the bell and spigot joints between the casings and the connecting pipev are packed with clay 21, or similar material;-

which will not afford sufiicient resistance to expansion and contraction to-cause breakage I of the parts. I

The construction is so arranged that all of the parts are readily accessible for clean ing' or repairathe parts will'not become broken due to unequalexpansion and the structural advantages heretoforesoughtjare attained; Obviously the construction is cation.

We claim:

'pable of much modification and such modifications as are within the scope of our claims we consider within the spirit of our inven- 1 In agas plant, the combination'of ad I vided with valve seats within said bellconnections, valves acting within said bell connections and adapted to coiiperate with said" ed to form spigot joints therewith, said pipe provided with an opening permitting inspection and cleaning.

2. In a gas plant, the combination of 'adjacent gas mains, a valve casing mounted on each of saidmains, eachof said casings being provided with a bell-mouthed extension, said extensions projecting toward each other, and a U-shaped pipe connectingsaid extensions and having spigot ends, said U- shaped pipe being provided with a cleaning opening, substantially as described.

Signed at Duluth, St. Louis county,Minnesota, this 26th day of March, 1915.

. SAMUEL B; SHELDON.

KINNEY C. HOXIE; Witnesses:

ARTHUR E. Mam, Gnon'cn A. FLINNI

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