US17472A

US17472A - Datus e

Info

Publication number: US17472A
Authority: US
Publication date: 1857-06-02
Anticipated expiration: 1874-06-02

Description

D. E. RUGG.

Water Gage.

No. 17,472. Patented June 2, 1857.

N, PETERS, Pnammh m hnr. Wahingmn. me

UNITED STATES PATENT OFFICE.

DATUS E. RUGG, OF NEW YORK, N. Y., ASSIGNOR TO HIMSELF AND DEXTER N. FORGE.

WATER-GAGE FOR STEAM-BOILERS.

Specification of Letters Patent No. 17,472, dated June 2, 1857.

To all whom it may concern:

Be it known that I, DATUs E. Rose, of the city, county, and State of New York, have invented, made, and applied to use a new and useful Mode of Connecting Transparent Water-Gages to Boilers; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing, making part of this specification, in which the end of a boiler is shown, and also my improved gage in section.

In determining the height of water in a boiler various devices have been resorted to. The gage cocks have been applied to the boiler head itself and also to a vertical pipe connecting the steam and water space, the difficulty of which is that the height of water cannot be determined by inspection but requires the cocks to be opened. Another planhas been to connect a strong vertical glass tube at top and bottom to the steam and water spaces of the boiler to denote the height of water by inspection, but this is "cry dangerous on account of liability to break under pressure or expansion, or from an accidental blow, and also becomes discolored on the inside with sediment from the water and is not easily cleaned, so that the water line is not apparent.

My said invention combines the advantages of both the preceding devices without any of the difficulties attendant on them, and consists in the use of a metallic pipe connecting from the steam to the water space of the boiler, around which a glass tube or cylinder is attached, filled with water or other suitable liquid, and the location of this cylinder or tube is at such a level as to indicate always the position of the water line or indicate when the water descends below a given level by the ebullition produced in the surrounding water by the steam heat conducted through the aforesaid metallic pipe. Thereby all danger from breaking the glass is avoided and the ordinary gage cocks are dispensed with and the glass can be cleaned out with great facility whenever desired, and a transparent indication of the water level is obtained.

In the drawing a, represents the end of any boiler or other part thereof to which the gage is to be applied.

b, is a metallic pipe connecting at the upper end to the steam space and at the lower end to the boiler as much below the water line as convenient so as to connect to the coolest part of said boilers. Cocks may be applied to this pipe at c, and d, if desired.

0, is a small ring or cup surounding the pipe 5, and having a small cock f, by which the contents of the glass cylinder or tube 9 that surrounds the pipe 6, and is attached to said cup 6, may be emptied for cleaning said tube. This tube or cylinder 9 may be left open at the upper end, but I prefer that it be steadied by a cup h, aroundthe pipe 6, in which is an opening to allow the escape of steam generated by the ebullition of the water in the tube or cylinder 9 when the water level of the boiler descends below the level of the surface of the liquid in said cylinder. This opening should be provided with a pipe 2', to facilitate replenishing and the steam generated in this cylinder g might be taken off to blow a whistle and give any desired alarm or might pass up into a chamber wherein it would condense and run back into the said cylinder.

I do not claim a metallic pipe connecting with the steam and water spaces of the boiler in itself. Neither do I claim a transparent water gage in itself; but

What I claim and desire to secure by Letters Patent isv The combination of the metallic pipe connected to the steam and water spaces, with the surrounding transparent tube or cylinder, to indicate by the ebullition of the fluid in said cylinder the water level of the boiler substantially as and for the purposes specified.

In witness whereof I have hereunto set my signature this eleventh day of April, 1857.

DATUS E. RUGG.

Witnesses i LEMUEL W. SERRELL, H. S. LINCOLN.