US10481A - William palmer - Google Patents

Description

NfEYERS, PHOTD-LITHOGRAPHER, WASHINGTON, D, C4

n T all whom t may concern lUNITED STATES PATENT OFFICE.VV i' WILLIAM PALMER, OF NEW YORK, N.Y. l

WATER-GAGE FOR STEAM-BOILERS.

Specification of Letters Patent No. 10,4817 dated January 31, 1854.

Be it known that I, WILLIAM PALMER, of the city, county, and State of New York, have invented a new and useful Improvement in Water-Gages for Steam-Boilers, which I have designated a Compensating Tater-Gage, and I do hereby declare that the following is a full description of the same.

The nature of my invention consists in making a double tubular case or box, which is attached to the head of the boiler by an upper and lower connecting pipe, so that the upper pipe communicates with the boiler above the range of the water line, and the lower pipe with the boiler below the range, so as to admit the water as well, as the steam into the case, where consequently the water will rise and fall with the water in the boiler. Inside of this case, at the head, and

about midway between the two tubes I arrange a lever on a pivot, to one end of which I attach a rod having on the lower end of it a iioat, to rest upon the water in one of the tubes, and rise and fall with it. To the opposite end of the lever is also attached a rod having on its lower end a compensating plate to sink into the water in the tube, in which it works, so as to compensate the sudden rise and fall of the iioat in the opposite tube in consequence of the ebullition of the water or of the rolling of the vessel, when applied to sea going Steamers. When this float sinks below a certainV mark, the lever opens a valve in the head of the case and the escaping steam causes a little paddle wheel, outside and in front of the case, to revolve, which by means of a cam and a hammer rings the bell on top of the case.

"When the vwater and consequently the float rises too high, the lever opens another valve, and the escaping steam sets the same paddle wheel in motion and rings the same bell, but this time the steam escapes in a different direction from the paddle wheel, and indicates so to the engineer that the water is too high.

The great advantage of this apparatus is, that its external application to the boiler renders it accessible to examination for repairs, if out of order, a matter of great importance where gagers are used. But to describe my invention more particularly I will refer to the accompanying drawings, forming a part of this schedule, the same letters of reference wherever theyoccur referring to the same parts.

Figure I is a front elevation'of the gage. Fig. II is a cut section of .the gage through line m', Fig. III is a cut sect-ion of the Vgage through line Y Y.

Letter A is the case ofthe gage, which is composed of two halves, having a(A flange around its. edges, so as to admit of being bolted together, to make the case steam tight.

The case consists of two hollow tubes B, B2, the bores of which unite at the top, where a lever C is p-laced on a prop D within the case. This lever islong enough to 'have its ends vertical over the hollow tubes. To

one end of this lever is attached a rod E having a floatv F on its lower end, and on the opposite end of the lever is another rod G, having on its lower end a compensating plateyI-I. The use of the float vis to reston the water, which flows into the tubes of the case through the connecting pipes I'and J,

and rise andvfall with it, but when itrises too high, it opens, by means of lever C the valve, M which is connected with the lever C by rod M', and when the water falls too low, it opens by means of the same lever C the valve N, connected with the lever C by the rod N. In both cases steam escapes through the valves, passes through the channels O or P in oblique directions into a cir,

cuit or case Q and causes the paddle wheel R to revolve. posed of two flanges, which form a groove This paddle wheel is com# between them, toreceive 6 or more paddles S; these paddles may set either square or obliquely, as shown in Fig. I in dotted lines, and the bottom ofthe groove may be worked straight between each pair of the paddles,

as shown plainly in the same figure in dot-ted Y v lines, so as to secure the most favorable action of the steam against the paddles. This wheel turns freely on-pin T, placed in the center of the case Q, which fits all around the wheel, so as to prevent .the escape ofr steam outof the wheel R, without touching' case Q through channel O in consequenceof the water in the boiler being too high, it turns the paddle wheel R in the direction of the arrow, and the steam remains within the paddles S until they reach the opening U,A where it will exhaust. When steam enters into the case Q through channel P in consequence of the waters being too low, it

will also put the wheel R in motion, butl the steam will exhaust through opening U. Consequently the direction, in which the steam exhausts, will indicate to the engineer, whether the water in the boiler is too high or too low.

The hub of wheel R is provided with a cam R, which, when in motion, raises the lever V, each revolution, and causes the little hammer V to strike the bell W.

The use of the compensating plate H is, to prevent the sudden act-ion of the float in consequence of the ebullitions of the water in the boiler, or in consequence of the rolling of a boiler in a seagoing vessel. This is done by sinking the plate H in the water in tube B', and as it nearly lits the orifice of the cylinder or tube B', there will always be a weight of water on it, requiringtime to escape and consequently acting as a compensator to the tendency of the lioat, to follow the vibrations of the water, which would without the compensator cause a constant ringing of the bell. Should one compensat-V ing plate not be sutlicient, two or more may be used as the Weight of the float may require.

Letter X is intended to represent the 1 boiler head, to which the connecting pipes Y are attached. These connecting pipes have plugs Y Y in them, so that any accident require the gage being removed, it can be done, without any trouble.

`Letter'Z is a blow olif pipe communicating with the connecting pipe of the gage, so as to blow oli' the water in the gage at any time.

Having now described my invention I will proceed to state what I claim, and desire to secure by Letters Patent of the United States.

What I claim isl. The use of the double tubular case in combination with the lever, having a float at one end, working in one of the tubes, and a compensating plate or equivalentI device, at the other, working in the o-pposite tube for the purpose substantially as set forth.

2. I also claim the use of the lever having a float at one end of it and a compensating plate at the other, whether working in a double tubular case or otherwise, in c ombination with an upper and lower rod valve, for operating a bell by means of the steam escaping through t-hese valves, whether using the paddle wheel, or any equivalent device for that purpose, to indicate the minimum or maximum of the water in the boiler, substantially as set forth.

Y WILLIAM PALMER. Witnesses:

"` A. H. I-IAAK,

JAMES M. f PARKER.

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