US1041628A

US1041628A - Steam-boiler gage.

Info

Publication number: US1041628A
Authority: US
Inventors: Allan D Hunsicker; Bertram A Hunsicker
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-09-09
Filing date: 1911-09-09
Publication date: 1912-10-15
Anticipated expiration: 1929-10-15

Description

. A. 11m. A. HUNSIGKER. STEAM BOILER GAGE.

APPLICATION FILED SEPT. 9, 1911.

1,041,628. Patented 001;. 15, 1912.

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A. D. 6; B. A. HUNSICKER. STEAM BOILER GAGE.

APPLICATION FILED SEPT. 9, 1911.

Patented Oct. 15, 1912.

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wue/wtom Allan D Hunsickem K Q M Ber'iram A. Hunsicker" attoznzv ALLAN 1 HUINSICKER AND Bnn'rRAM A..I-IU1\TSIGKER, or SHAWNEE, OKLAHOMA.

sTn m oILEn GAGE.

Specification of Letters Patent.

Application filed September 9, 1911. Serial No. 648,456.

1}) all whom it may ccncem:

Be it known that we, A AN D. HUNsIoKER and BERTRAM A. HUNSIOKER, citizens of the United States of America, residing at Shawnee, in the county of Pottawatomie and State of Oklahoma, have invented new and use ful Improvements in Steam-Boiler Gages, of which the following is a specification.

This invention relates to improvements in sight gages for steam boilers and has for one of its objects to provide a device of this character which maybe automatically oper ated to shut ofi the flow of steam and water from the boiler in -the event of the sight glass becoming broken.

Another object of the present invention is the provision of a manually operable con-; trolling valve for controlling the operation of the automatic valve mechanism.

A further object of the invention is to provide an automatic valve and a manually operable controlling valve therefor, the latter being operable to test the operation of the automatic valve, to cut off the operation thereof entirely or-to allow the same to operw ate automatically tocut-off the flow of both steam and water from the boiler, in the event of the sight tube being broken, according to the position of the controlling valve.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts as hereinafter described, claimed, and 111113? trated in the accompanying drawings, wherein is illustrated the preferred embodi; ment of the invention, and wherein:

Figure 1 is a view in elevation of a steam boiler gage constructed in accordance with the present invention. Fig.2 is a side view of the same applied to a steam boiler, one of the valves. being shown in vertical section,

Fig. 3 is an enlarged vertical sectional view of oneof the valves. Fig. 4 is a transverse section on the line 4P4 of-Fig. 3, the controlling valve being rernoved. Fig. 5 is a detailed perspective view of the controlling valve and its operating handle.

Referring more particularly to the accompanying drawings, wherein similar reference numerals designate like parts thronghout the several views, the numeral 1 'desigs nates the sight glass, to the opposite ends of which are secured the improved valve mechanisms 2-2, the latter'being connected with the steam boiler 3. As the valve mechanisms A are substantially identically constructed itis thought that a description of one will suffice for both.

Each of the valve mechanisms 2 comprises a casing 4, constructed of brass or any other suitable material, made up of two

sections

5 and 6, and a cap or. cover section 7, each of the

sections

5 and ,6 being formed on its outer surface with acircumferentially extending octagonal, or other noncircular, flange 8, for the purpose of receiving a wrench.

One end of the section 5 is formed to provide an exteriorly screw threaded nipple 9 for the purpose of receiving one end of the sight tube 1, the other end of such sight tube nular extension 12, interiorly screw threaded and adapted toreceive an exteriorly threaded extension 13 formed on the section 6. The inner and outer ends respectively of the

flanges

12 and 13 are correspondingly beveled to form a fluid-tight joint as at let. The outer or free end of the section 6 is provided with a screw-threaded annular 6Xt6I1S1011'15 adapted to receive the interiorly screw threaded flange of the cover section7.

An automatic cut-off valve 17 is operatively positioned within the sectionfi, the lower face of said valve being formed with a convex surface 18 adapted to coincide with a valve seat 19 formed in the section 5. Depending from the surface 18. of the valve is a valve stem 20 which is slidably mounted within the bore 21 of the section 5, the said bore being formedwith an annular guiding Patented Oct. 15, 1912.

rib 22 against which bears one end of a tion. An annular guiding rib 24c is formed integral with the surface 18 of the valve 17 .so as to securely hold the spring'on the stem thereof. Thevalvel'? is formed, near its marginal edge, with a steam port 25 the purpose of which will be hereinafter fully described.

A rigid diaphragm 26 is positioned in the section 6 of the casing adjacent the valve 17 and has an opening formed therein ,its seat 19 in the event of the sight glass becoming broken. The upper surface of the valve 17 is spaced a suitable distance from the diaphragm 26 so that in the normal position of the valve steam from the boiler may pass through the apertures in the diaphragm on to the upper surface of the valve and through the port 25 therein, around the valve and its seat, and into the sight glass. Adjacent its outer end the section 6 is interiorly formed to provide a valve seat 29 on which is mounted for rotary movement a manually operable controlling valve 30 in which is formed a port 31 adapted to register with one of the passages 32 and 33 formed in the section 6 of the valve casing. The port 32 communicates with a chamber 34 formed intermediate the diaphragm 26 and the controlling valve 30, while the port 33 is in communication with the space beneath the lower surface of the valve 17.

The cover section 7 has a nipple 35 formed thereon which is in communication with the interior of the boiler. Formed centrally of the cap or cover section 7 is an opening 36 through which projects a stem 37 carried by the upper surface of the valve 30. Embracing the stem 37 of the valve 30 and intermediate the cover section 7 and the valve is a helical expansion spring 38 which keeps the valve 30 in contact with its seat 29 at all times. Surrounding the stem 37 and engaging a nipple 39 formed on the cap 7 is a jam nut 40 for the purpose of forcing the packing 40 around the valve stem. At its outer or free end the stem 37 is connected with an operating lever 41 one end of which terminates in a handle 42 to which is attached a spring clasp 43 adapted to nor mally engage one or the other of a plurality of grooves 44 formed in the flange 8 of the section 6 of the casing for the purpose of holding the valve 30 in any desired position. In the operative position of the device, that is, when it is desired that the valve 17 shall operate automatically, the port 31 of the controlling valve 30 is in registration with the port 32 of the valve seat 29, being adjusted to such position by means of the handle 42. In this position of the valve 30 it will be obvious that steam from the boiler will enter the casing through the nipple 35,

to the top of the valve 30, from the upper surface of the valve the steam will pass through the ports 31 and 32 of the valve and its seat respectively into the chamber 34, through the apertures 28 of the diaphragm 26 on to the upper surface of the valve 17 and through the port 25 therein, thence between the valve 17 and its seat 19 through the bore 21 and into the sight glass. From this construction it will be seen that the pressure of the steam above and below the valve 17 is balanced and by means of the spring 23 the "valve is normally held away from its seat. Upon the breaking of the sight glass the pressure below the valve will be released and therefore the valve will be automatically seated by the pressure above the same thereby cutting ofl the flow of steam and water from the boiler.

The section 5 of the casing is provided with a passage 45 the inner end being in communication with the bore 21 and the outer or free end being provided with a blow-off cock 46. clean out thevalve and the sight glass the port 31 in the valve 30 is brought into registration with the passage 33 of the section When it is desired to 6 by manipulating the handle 42 thereof. In this position of the valve "steam is directed fromthe boiler through the passage 33, between the valve 17 and its seat, and by opening the blow-off cook 46 is blown into the atmosphere carrying with it sediment and the like which may have collected in the valve or water glass. After the valve 17 has been seated, due to the breaking of the sight glass, the same may be restored to its normal position by the operation just described. By manipulating the valve 30 so that the port 31 is out of registration with the passages 32 and 33, steam and water may be kept out of the sight glass,

.and in this position of the valve the sight glass and the lower section 5 of the casing together with the valve 17 may be removed for the purpose of cleaning or repairing.

From the above description taken in connection with the accompanying drawings it will be seen that we have provided a very efficient and novel form of valve mechanism for sight gages, one which is positive in its operation and which may be easily and thoroughly cleaned or repaired without disturb:

ing the condition of the boiler.

We do not limit ourselves to the exact details of construction as herein set forth as various changes may be made within the scope of the claims and without departing from the spirit of the invention or sacrificing any of the advantages thereof.

Having thus described our invention, what we claim and desire to secure by Letters Patent is 1. In a gage of the class described, the' combination of a valve adapted to be actu ated by fluid pressure in one direction, a second valve adapted to control the flow of fluid to the first valve to actuate the same, and a diaphragm intermediate said valves and apertured to permit the flow of fluid to the first named valve to actuate the same to a closed position in the event of the gage glass breaking.

2. In a gage of the class described, the combination of a valve adapted tobe actuated by a fluid in one direction, a second valve adapted to control the flow of fluid to the first valve to actuate the same, means for operating said second valve, and a diaphragm intermediate said valves and apertured to permit the flow of fluid to the first named valve to actuate the same to a closed position in the event of the gage glass breakmg.

3. A gage including a casing formed with fluid passages and having a pair of valve seats therein, a valve adapted to cooperate with one of said seats and capable of being actuated by fluid pressure, a second valve mounted 011 the other of said seats and manually operable and having a port formed therein, the passages terminating in the lastnamed valve seat and being adapted to reg ister with the port in the second-na1ned valve, said last-named valve being adapted to control the admission of fluid to one or the other of the said passages, and a diaphragm intermediate said valve seats and apertured to permit the flow of fluid to the first-named valve to actuate the same in one direction in the event of the breaking of the gage glass.

4. A gage of the class described, comprising a casing, said casing being formed with passages, an automatic valve arranged in said casing and having a port formed therein, and a diaphragm carried by said casing and having apertures formed therein for communication with said valve, a controlling valve, one of said passages communicating with the lower surface of said automatic valve, the other of said passages being in communication with said diaphragm, and said cont-rolling valve being operable to control the admission of fluid to one or the other of said passages.

5. In a gage of the class described, a casing having fluid passages formed therein and provided with valve seats, an automatic valve adapted to cooperate with one of the seats, and a manually operable controlling valve rotatably mounted on the other of the seats and having a port formed therein, said passages terminating in the last-named valve seat and being adapted to register with said port, and said last-named valve being adapted to control the admission of fluid to one or the other of said passages.

6. A gage of the class described including a casing formed with fluid passages and provided with a pair of valve seats, a valve adapted to cooperate with one of the seat-s and capable of being actuated by fluid pressure, a second valve mounted on the other of said seats and having a port formed therein, said passages terminating in the last-named seat and being adapted to register with said port, said last named valve being adapted to control the admission of fluid to one or the other of said passages, said casing being provided with a chamber intermediate the valves, and a diaphragm within the chamber and apertured to permit the flow of fluid to the first named valve to actuate the valve in one direction in the event of the gage glass breaking.

In testimony whereof we aflix our signatures in presence of two witnesses.

ALLAN D. HUNSICKER. BERTRAM A. HUNSICKER.

Witnesses:

WILLIAM A. DENTON, JAMES S. SIMMONS.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents,

Washington, D. C.