US98464A - Improvement in water-indicators for steam-generators - Google Patents

Description

waited. gister W. Gr. BELL, OF PITTSBURG, PENNSYLVANIA.

Letters Patent No. 98,464, dated January 4, 1870; antedated December 60, 1869.

mrnovBMnNT 4nr WATER-INDICATORS ron srsAli/Lemire:aan.'ons.`

The Schedule referred to in these Letters Patent and making part of the same.

To all whom. it may 'concern Be it known that {,W. G. BELL, of Pittsburg, in the county' of Allegheny, and State of Pennsylvania, have invented a new anduseihllmprovement iu Steam-Generators; vand I do hereby declare that thefollowing is a full, clear, and exact description.

thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature of my invention consists in the construction ,and arrangement of a float and valve with relation to the boiler, so that the oat will, through the medium of suitable gear, connected with the valve in the watersupply pipe, cause the valve to close when thewater is at the desired height in the boiler, and open gradually as the water becomes low; and when .the water `is below the line of safety, to open the valve to its full capacity, and also give an alarm.

-To enable others skilled -in the art to make and use my invention, I will proceed to describe its con-l struction and operation.

In the accompanying drawings, which form part of my speciication- Figure 1 is a side elevation .of a steam-generator provided with my improvement.'

Figure 2 is an end view of the same.

Figure 3 represents a section of a valve which may be nsed in connection with the oat.

Figure 4is a transverse section of theA stuffing-box, cut through at line y, in which is placed a hollow pivot-shaft, and represents the relation of openings in the stuing-box and hollow shaft, when the water to an opening, X, in the s'tnfling-box D, 'so that by rotating the hollow shaft f', the openings X and o will bebrought opposite each other, as represented in fig. 4.

To the inner end of the shaft f' is attached an arm, e, onl the end of which is secured afloat, A, which may be of any desired form, and made of any suitable material.

On the outer end of the hollow 4shaft f is attached an arm, f, to which is secured the rod h, for'manipulating the valve in the water-supply pipe J.

The valve in pipe J may be of any desired form, and the pipe may be connected with and to the boiler in any known manner.

When the float 'is in the position represented in iig. 2, the valve in pipe J will be openedtolits full capacity, to allow the water tofow freely through pipe J into the boiler, and the openings'X 'and o will be opposite to each other, thereby allowing steam to escape through the hollow shaitf, and thereby give the alarm as to the condition of water in the boiler.

Ihen the float is in the position represented by .the dotted lines in fig. 2, the valve in pipe J and th openings X and o will be closed.

Having thus described my invention,

What I desire to secure by Letters Patent, is-

1. The iloat A, attached toga hollow axis, which passes through the stntling-box, provided with a steam opening, X, said iioat, axis, and opening being soconstructed with relation to the water-supply as to give an alarm when the water is below the desired waterline in the boiler, substantially as described.

2. The combination and arrangement of the oat A wit-h the valve in the supply-pipe, for regulating the ow of water into the boiler, substantially as herein described.

W. G. BELL.

Witnesses J AMES J. J oH'Ns'roN, OHAs. HABA WAY.

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