US1381049A - Valve - Google Patents

Description

A. ABBAMONTE.

VALVE.

APPLICATION FILED AUG-7,1919.

Patented June 7,

S H E E 2 SHEETS m 6 a 4% M 1 3 i m L 4 fl f 4 lwwntoz A. ABBAMONTE.

VALVE.

APPLICATION HLED AUG-7.1919.

Patented J 1111 e 7, 2 SHEETSSHEE I avwentoz m'rrsrnms Annmomn, or rocn'rnnno, mo.

VALVE.

mamas.

To all whomzft may comem: 7 Be it known that I, Amsrnnn Anna- MONTE, a citizen of the United States, residing at Pocatello, in the county of Bannock and State of Idaho, have invented a new and useful Valve, of which specification.

The present invention relates to valves ntended primarily to be used .in conjunction with steam boilers and the like, the principal object being to provide a drain valve which will allow the water or condensation t0 dram from the valve and to remain open when the pressure of the steam is reduced 'or shut off but adapted to be closed by proper steam pressure.

A further object of the invention is to provide ,a valve of this type wherein the water is free to pass from the valve thus to prevent freezing or otherwise injurmg of the valve.

Another important object of the invention is to provide a suction valve or drain valve wherein a spring actuated valve member is employed, the spring being so arranged as to be protected from the water passing through the valve casing.

Another object of the invention is to provide a drain valve which maybe readily taken apart and the valve member removed therefrom and wherein the valve member mabe readily reseated.

other object of the invention is to provide a valve that is normally open but which will be closed upon the exertion of a given pressure against the valve member to prevent the escape of steam or other pressure therethrough.

Another object of the inventlon is to provide a valve which is simple in construction,

which consists of few parts, and which may be manufactured and placed on the market at a minimum cost.

With the above and other objects and advantages in mind, the invention consists in the combinations of elements, constructions.

and arrangements of parts, formationsand neral assembla e, the details of which will e hereinafter e arged upon and recited in v 5 the subjoined claim, the invention being Specification of Letters Patent.

the following is a mama June a, 1921.

7 Application tiled August 7, 1919. Serial No. 815,925.

illustrated in the accompanying drawing wherein Figure 1. is alongitudinal sectional view of' my improved drain valve;

Flg. 2. is a side elevationof the valve;

Fig. 4. is a transverse sectional view taken on line 44 of Fig. 1;

Fig.5. is alongltudinal sectional view of a modified form of the invention;

Fig. 6. is a transverse sectional view taken on line 6-6 of Fig. 5; and

Fig. 7. is a transverse sectional view taken on line 7-7 of Fig. 5.

On the drawing, wherein like characters of reference designate like parts on all of the views, the numeral 5 designates a solid walled, hollow and relatively cylindrical valve casing or barrel having its upper end enlarged and provided with an internal valve seat 6 and further provided with interior screw threads 7 therebeyond. -The op- 3. is a transverse sectional view taken on hne 3-3 of Fig. 1;

posite end of the barrel is provided with an nwardly extending anfnular flange.

A central longitudinal recess 10 is formed within the casing which is open at one 'end preferably at its upper end as shown. A coil spring 11 is disposed within the recess and bears against the bottom of the same, while the valve stem 12 projecting from a reciprocable valve 13, extends within the recess. The valve 13 is adapted to rest on or engage the seat 6 and is normally unseated urged oif its seat by the spring 11.

Extending longitudinally of the recess 10 and having end portions adjacent to the flange of the barrel disposed radially of the same is a plurality of ducts 14, the upper ends of which are disposed below the valve seat 6, the opposite ends of these ducts extend toward each other and communicate with central duct'15. A bushing or plug 16,

.around the valve and thence escaping by way of ducts 14 and 15. When the pressure hecomes high enough to move the valve against valve, the latter being smaller in diameter than the adjacent portion of the bore of the casing.

Due to the fact that the spring 11 is accommodated in the recess 10 protected by the surrounding wall or inner tube, it will be obvious that the spring will always be protected against contact with the water or steam passing through the casing. It will alsobe seen that any condensation forming in the barrel will always pass from the same thus avoiding freezing or otherwise damaging the valve.

A modified construction of the valve is illustrated in Figs. 5, 6, and 7. In this embodiment of the invention there is provided a barrel 5, one end of which is reduced in diameter and accommodates an expansible spring 11. The valve 12 is triangular in cross section to permit the pressure to flow through the reduced end of the barrel and escape by way of the port in this reduced end. Lugs 18 extend from the upper face of the valve which bear against the plug 16 and space the valve from the plug to allow the pressure fluid to flow around the valve which is also smaller than the adjacent bore of the casing.

The embodiments of the invention herein illustrated and described are examples of the invention and it will be understood that the invention may be embodied in constructions other than the ones set. forth and that my limits of modification are governed only by what is claimed.

What is claimed is A drain valve including a casing having a central longitudinal recess provided at its 1 there being ducts extending longitudinally within the casing from the inner end of the bore and opening into the duct extending from the recess, and a screw plug engaging the threaded portion of the Wall of the counterbore and having a central opening there- 'through and radial recesses in the inner face of the plug .and extending from said passage to the peripheryof the plug, the recessed end of the plug constituting an abutment for the spring pressed valve.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

S. J. BURNS, H. N. PAYNE.

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