US83638A - Improvement in low-water indicators - Google Patents

Description

` To all persons to 'whom these presents shall come:

i lgfiuitd tatr @glatt/ 11i (df-1152. dit

www

nLizA JOYCE, Or NEW YORK, N. Y."

l Lettw's Patent No. 83,638, alertedl November 3, 1868.

IMPROVEMENT IN LOW-.WATER IDICATRS.'

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

Be it known that I, ELIZA JOYCE, now residing in thecity, county, and State of New York, have made a new and useful invention to be applied to a Steam- Boiler for the purpose of giving notice or warning when the water thereof may become too low,- or at a dangerous level therein; and I do hereby declare the saine yto be fully described inthe following specification, and

represented in the accompanying drawings, of which-#J- Figure 1 is a top view, and v Figure 2 an endV elevation of it.

Figure?, is a longitudinal section of its float-spindle and screw for fixing the apparatus toa boiler.

Figure 4 is a section of a boiler with the invention applied to it.

Y This invention is intended to be applied to a boiler,

and at or about the level beyond which,- for the purposes of safety, the rwater should not be suffered to fall therein,'my invention Abeing what maybe termed la low-water detector. i

In the drawings, A denotes a screw, having a hole,

a, bored through it longitudinally, such hole, atA its inner end, being conical, or otherwise properly formed,

vas the seat fora valve, b, aiiixed to a spindle, B, which goes through the hole a, and is held in place therein by a Washeror head, c, fixed on the spindle, near its outer end. 1 y

A crank or arm, el, extends from the innerend of the spindle, and supports a float, C, fixed lirmly to it.

To the opposite end of the spindle, the elastic arm of a bell-hammer, D, is attache andprojected over a bell, E, and, with reference to t e stops or studs' f g, in manneras exhibited in the drawings.

One of the stops is projected from the head, h, of

the screw A, and the other -from an arm, fl, which is extendedfrom the screw, and serves to support the bell E, which -is connected to the arm by a screw or pin, 7c, arranged as represented.

The stops f g are to prevent the float from being depressed below the low-water level, or that` of the spindle.

In applying the apparatus to a boiler, the screw A is qto be screwed into the shellof the boiler at or about at the low-water level, the crank and the iloat being extended within the boiler.

*As the hammer and the Vbellwill be on the outside of theboiler, the water, in falling to a dangerous level," or into proximity therewith, will, when in ebullition,

so vibrate the iloatas to ca use the hammer to make a series of blowson the bell, and thereby vgive'warning of the low state of the'water.' The position of the hammer will also serve to indicate the height of the water inthe boiler. j

One of the advantages of this apparatus over various other low-water detectors in which a float is a compo-g nent part is, that its operation is not likely to be arrested by incrustations of saline or other matters,

I claim the arrangement, in connection with the boiler, of the oat O and alarm'E, directly connected together by the crank-spindle B, substantially as d escribed, so that the ebullition of the water, when at a determined level in tlieboiler, will effect the vibration of the oat, and the consequent sounding of the alarm,

asset forth.

' -g E. J OYCE.

Witnesses:

DANL JAMES Noves,

SAMUEL A. Noms.

Images