US1089209A - Petcock-valve. - Google Patents

Description

T. H. GOULDING.

PETGOCK VALVE.

APPLICATION FILED mu. 3, 1912.

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THOMS H. GOULDING, OF ST. PAUL, MINNESOTA.

PETCOCK-VALVE.

Specifieation of Letters Patent.

Patented Mar. 3, 1914.

Application filed January 3, 1912. Serial no. eeaaza To all whom it may concern Be it known that I, THOMAS H. Gounnme, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Petcock-Valves, of which the following is a specification.

My invention relates to improvements in gage cocks for water columns for boilers, its object being particularly to provide improvements in the construction of the cock facilitating the easy cleaning of the same while ,the boiler is alive.

To this end the invention consists in the construction, combination, and arrangement of parts hereinafter described and claimed.

In the accompanying drawings forming partof this specification, Figure 1 is a side elevation of a water column fitted with my improved cocks; Fig. 2 is a top View of the cock with the supporting column wall in section; Fig. 3 shows a water glass arranged in connection with a pair of cocks; Figs. 4- and 5 are details of a plug used in connection with the gage cock; Figs. 6 and 7 are detail views of a plug formed with a bushing for the controlling valve of the cock, Fig. 7 being shown partly in section; Fig. 8 is a section on line m-m of Fig. 3; Figs. 9 and 10 are details of a washer forming part of the invention; Figs. 11 and 12 are details of a discharge tube forming part of the cock; Fig. 13 is a detail View of a controlling valve forming part of the invention; Fig. 14; is a view looking toward the inner end of the valve; Fig. 15 is a view looking toward the outer end of the valve; and Fig. 16 is an outer end view of the cock shown in connection with a water glass illustrated in section.

Referring to the drawings A represents an ordinary water column connected with a boiler, not shown, by the pipes 2 and 3. I show in Fig. 1 of the drawings three of my improved cocks tapped into the column, to be used to determine the level of the water in the column. The inner end 4 of each cock is threaded to permit of its being screwed into the opening 5 in the side wall of the column. Extending longitudinally through the body of the cock is a straight unobstructed bore or conduit 6, a discharge pipe 7 being shown threaded in the outer end of the conduit. Branching outward laterally from the conduit 6 is an inclined boss having a bore or opening 8 in the outer end of whichis shown threaded a plug 9. Havmg screw threaded traveling support 10 through the plug is a valve stem 11. said stem at its outer end supporting a handle 12, and at its inner end supporting a valve 13.

A seat 141 for the valve 13 is formed at the junction of the conduit 6 and valve opening 8. The valve 13 is of a. diameter corresponding to the diameter of the bore or opening 8, and coiiperates with the seat 14 to close communication through the bore of the body. When, however, the valve 13 is moved to open position it closes the bore 8 against communication with the bore of the body, and thus prevents accumulation of sediment in the bore 8. Seated in the valve opening 8 adjacent to the inner side of the plug 9 is a disk 15 through which disk the valve stem slides. The inner side 16 of the plug 9 is cut away to form a holder for suit able packing intermediate of the plug and disk. The cock may be formed with an opening 17 to receive one end of the water glass 18 as shown in Fig. 3, the opening 17 communicating with the interior of the cock. When a water glass is not used the opening 17 may be closed by a plug 19 and where the water glass is used the discharge pipe 7 may be removed and the outer end of the conduit 6 closed by a plug 20.

Where it is desired to clean out the sediment which is ordinarily deposited in the inner end of the conduit 6 the valve 13 will first be seated as shown in Fig. 8 to close the conduit 6 and prevent any escape of water from the column. The discharge pipe 7 or plug 20, as the case may be, will then be removed and "an ordinary cleaning tool secured in the outer end of the conduit 6.

The valve 13 then being carried to open position as indicated by dotted lines in Fig. 8, the cleaning tool may be used in the ordinary manner to clean out the cock. When the same has been thoroughly cleaned the valve 13 may be again seated to close the conduit 6 and allow the removal of the cleaning tool without the escape of any water from the column. Where the discharge tube 7 is employed without the water tube the valx e 13 may be kept seated, and opened where it is desired to determine the amount of water in the column or for the purpose of cleaning out the cock, as hereinbefore described. Where the water tube is used and the outer end of the tube 6 closed by a plug, the valve 13 may be left open to ice allow the water to pass into the tube and only closed in connection with the insertion or removal of the cleaning tool.

I claim as my invention:

1. A gage cock the body of which is formed with a straight unobstructed bore extending throughout its length to provide a free passage therethrough, an inclined boss projecting from one side'of the body and having a bore in communication with the straight bore of the body, a valve seat formed in the bore of the body opposite to the inner end of the bore of said boss, a plug mounted in the outer end of said boss a valve stem supported by said plug, and a valve arranged at.the inner end of said stem adapted to cooperate with said seat to close communication through the bore of the body, said Valve being of a diameter corresponding to the diameter of the bore of the boss and-serving in the open position of the valve to close the bore of the boss against communication with the bore of the body to prevent accumulation of sediment in the bore of the boss.

2. A gage cook the body of which is formed with a straight unobstructed bore extending throughout its length to provide a free passage therethrough, the outer end of said bore being threaded to permit the interchangeable application thereto of a discharge tube or closure plug, said body also having a lateral opening in communication with said bore, a plug seated in said opening to close the same, an inclined boss projecting from one side of the body and having a bore in communication with the straight bore of the body, a valve seat formed in the bore of the body opposite to the inner end of the bore of said boss, a plug mounted in the outer end of said boss,

a valve stem supported by said plug, and v a valve arranged at the inner end of said stem adapted to cooperate with said seat to close communication through the bore of the body, said valve being of a diameter corresponding to the diameter of the bore of the boss and serving in the open position of the valve to close the bore of the boss against communication with the bore of the body to prevent accumulation of sediment in the bore of the boss.

In testimony whereof I afiix my signature in presence of two Witnesses.

' THOMAS H. GOULDING.

Witnesses:

' H. SWANSON,

H. S. JoHNsoN.

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