US435286A - Gage-cock - Google Patents

Description

(No Model.)

R. J. GOLVIN.

GAGE COOK.

No. 435,286. Patented Aug. 26,` 1890.

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UNITED STATES PATENT OFFICEa ROBERT J. coLvIN, or LANCASTER, PENNSYLVANIA GAG E-COCK.

SPECIFICATION forming part of Letters Patent No. 435,286, dated August 26, 1890.

Application filed May 24, 1890. Serial No. 353,051. (No model.)

To all whom, it may concern:

Be it knownthat I, ROBERT J. CoLvIN, of Lancaster, in the county of Lancaster and State of Pennsylvania, have invent-ed certain new and useful Improvements in Gage-Cocks; and I do hereby declare the following to be a full, clear, and exact description of the in-' vention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this speciication.

My invention relates to an improvement in automatic gage-cocks; and it consists in, first, a seat provided with ratchets, and an automatically-acting pawl for engaging with the ratchets and causing the seat to partially revolve each time, that the handle is operated; second, an automatically revolving and removable seat, and a suitable mechanism for causingthe seat to revolve, and third, the combination of a spring-actuated handle, a pawl connected to the handle, and a removable seat provided with ratchets and with which the pawl engages, as will be more fully described hereinafter.

The objects of my invention are to make the gage-cock entirely automatic in its operation, to provide a reversible valve or seat, so that when it is worn out upon one side it can be removed and reversed so as to present an entirely new surface, and to cause the seat to revolve each time that the handle is operated, so that a new seat will always be presented to the nipple.

Figure 1 is a side elevation of a gage-cock which embodies my invention, the cap-plate being removed. Fig. 2 is a horizontal section of the same..

A represents that part of the gage-cock which is screwed into the boiler, B the handle, and C the pivot, by means of which the two parts A B are connected in the usual manner.

For the purpose of causing the'handle to be automatic in its operation, and to do away with the weights which have heretofore been applied to the handle for the purpose of making it automatic in closing, there is applied to the end of the pivotal bolt or rod@ a spring D of any suitable construction. shown, one end of the spring is made to catch As here.

cess, upon the pivotal bolt- I, is placed the rel Y versible land revolving` seat H, which may either be of the construction here shown or any other that may be preferred. The face portions of the seat or valve may be made of lead, cork, or any other suitable material that maybe preferred, and the seat or valve is made reversible in position, so that in case one face should become worn out it is only necessary to remove the pivotal rod or bolt I, take out the seat or valve, reverse it, and then return it to position, when an entirely new face is presented. In order to cause this seat to partially revolve each time that the handle is operated, there is formed a ratchet .I upon each edge of the valve or seat, and with the upper one of these ratchets an automatically-acting dog O, pivoted to the part A, engages. Each time that the handle is raised for the purpose oftesting the water the whole seat or valve is raised, and the dog in dropping enga-ges with a new tooth of the ratchet, and then when the handle is returned to position by means of the spring the dog causes the seat to revolve the distance of one or more of the ratchets, and thus a new surface or bearing is presented to the nipple. The consequence is that the nipple does not have the same seat twice in succession, and hence the seat or valve will last an indenite length of time.

It will be seen from the above that this gage-cock is entirely automatic in its operation, and hence nothing is left to the j udgment or to the skill of the engineer or fireman. While the valve or seat can be revolved by hand, if so desired, the mere raising of the handle to test the water causes the seat or valve to be moved and present a new surface to the nipple.

In all of the gage-cocks heretofore invented where a changeable bearing is shown, the bearings must be revolved by hand, and this IOO is to be done only when the bearing4 or surface is worn out at a certain place. This requires a knowledge of the construction of the valve and a watchfulness upon the part of the engineer or fireman, which is entirely done away with by the construction here shown and described, for every partis made automatic in its operation.

Having thus described my invention, I claimv 1. In a gage-cock, the part or stein A, having a downwardly-extendng opening in its end and a handle pivoted at its inner upper portion to the outer upper portion of the stem, and a revolving seat journaled Spbstantially horizontally in the handle below the opening in the stein, combined to operate substantially as shown.

2. In a gage-cock, the part A, which is to be vscrewed into the boiler, combined with a springactuated handle, a pivoted dog, and a revolving seat or valve provided vwith ratch ets, substantially as set forth.

3. In a gage-cock, the stem having an opening, a handle pivoted thereto, a revolving seatjournaled in the handle, and an automatic mechanism operated by the movement of the handle for revolvingthe seat5-substan tially as set forth.

4. In a gagelcock, the combination of the part A, which is to be screwed into the boiler,

a spring-actuated handle pivoted thereto, a

yVersely in the handle beyond the said open-A ing in the stern, whereby the face of disk or seat engages the walls ofthe opening, and the seat adapted to be reversed, combined'to operate substantially as described.v

6. In a gage-cock, the stern having an open-Y ing, the handle Apivoted thereto, a revolving seat journaled in the handle, and a pawl for revolving the seat, substantially as specified. In testimony whereof I affix my signature in presence of two witnesses.

ROBT. J. COLVIN. Vitnesses:

l JOHN W. ANDERSON, G. Ross 'ESHLEMAN

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