US72287A - Improvement in valves foe boileb-feeders - Google Patents

Description

@eine 'faire gutem @frn RICHARDv GORNALL, 0F BALTIMORE, -MARYL'AND Letters .Patent No. 72,287, dated December 17, 1867.

IMPROVEMENT Ill VALVES FOR BOILERI`EEDERS.

TO ALL WHOM IT MAY CONCERN: Y

Y:Be it known that I, RICHARD GORNALL, of.l3altirnorc, in thecounty of Baltimore, andState of Maryland,

Ahave invented a new and improved Automatic Steam-Valve forInjectors or Feeders for Steam-Boilers; and'l do'hereby declare the following to be a full, clcar, and exactdescription ofthe same, reference being had to thc accompanying drawings forming part of this specification, and -in which- A Figure l is an axial section of my invention, the apparatus being represented as resting on its side, the

`upper-Send to the right hand; and

Figure 2 is a cross-section of the same through the line a: :r of iig. 1.

This invention consists in a new device designed to he applied to a .steam-boiler, whether connected with an engine or'not, and automatically to regulate the flow of steam from the boiler'to a pump or injector, the steam thus escaping being used to work the pump orinjector and feed the boiler, entirely independent of the action Similar letters of reference indicate corresponding parts in the several iigures.

In the drawings, A' represents a hollow brass cylinder, s even'or eight inches in length by from three to four in diameter, surmpunted by, a hollow brass cap, B, containingtvfo chambers, one, C', enclosed within the other, C, and attachedgto the side wall oiL the -cap Bihaving a discharge-steam pipe D. v The chamber C commnnicates with thc interior` of theV cylinder A, by means of several apertures, a d, iin-'thc top of the cylindcri Inside of the cylinder A is a bollo-w copper iloatyF, held in positionso as not to move laterally, but to be capable of a vertical motion, lby means of the rodsffworking in sockets at the centre of the'top and bottom of the cylinder. Directly over` the upper socket and axial rod or journalf of theiloat, the top and bottom of the chamber C are pierced, opening up a communication fromv the chamber C to the discharge-steam-pipe D through the chamber C. The rodf-is here prolonged upward and shaped into a slide-plug valve, e, seating upward against the ,top and bottom of chamber C', so as to close at the same time both passages into that chamber from the adjoining chamber C.' The whole combined instrument thus Aformed is to'be attached lto astearmboiler atV the water-line, and communication is to be established between its interior and the interior ot' the boiler by means of a pipe, S, running to the steam-space, andanother pipe, W, running into the boiler below the water-l line. These pipes are always open, and always in communication with each other by means of the holes a a,

as well as through the boiler, in consequence of which the water and steam will enter the cylinder A, and there maintain the same height and pressure asin the boiler.' The cylinder'is to be attached 4tc theb'oiler at such a height that the float F will 'be lifted by the water when the boiler is properly filled, and will seat the valve v, and prevent the escape of steam into the dischargeLpipe D, but when the water falls below the proper level, will open the valveand allow the steam to escape in 'a.steady', continuous jet through the pipe D, to a pump or injector to which the pipe leads. l p j If' the whole apparatus is constructed as above described and shown, and the water-pipe W is connected with the cylinder A, at a point opposite to the lower end of the float F, the operation of tho instrument under the most powerfulpressure of steam will be as easy and certain as if the parts were operated in the open air,

the-iloat F sustaining an equal pressure on every side, and the-valve c being balanced by the steanfabove and below the chamber C. An apparatus thus constructed is the most simple, compact, durable, cheap, ,and eii'ective that can lbe used for the purpose, every part operating by direct positive actiomavithout theintervention of levers or gear of any description. .i Y

t am aware that an instrument somewhat similar, patented by E. A. Woods, of Utica, New York, March 7, 1860, has been used for thev same purpose. I In this invention, however, the valve is operated by a lever, which is apt to work inaccurately, and to get out of order so as not to work at all.- The upper chamber in his apparatus must be made large enough-to accommodate the working of the lever, which increases the cost of the instrument. The construction, attaching, and connecting of the lever, besides the material used in making the n enlarged chamber around it, are all saved in my improved apparatus, a saving which diminishes materially the cost,- besides increasing the'simplicity and eil'ectivcness of the instrument.

My instrument is not designed automatically toblow oli' thesteam, nor to sound avwhistle, but its' object is to open and regulate automatically -a direct steam-passage from'the boiler to the steam-pump or injector, by

means of an apparatus working by the direct positive action of the rise and fall of the water in the boiler, and without the use of levers, gear-wheels, pulleys, belts, or any other parts except the float and valve. It is obvious that, as the instrument depends for its action solely upon the movement of the water, its 4working is altogether independent of an engine; and it is also obvious that the steam passing through the pipe D may be made to work the pump or injector without the use of the main engine, which is a leading purpose of my invention. My apparatus, therefore, will be very valuable, regulating and feeding the water to the boiler with perfect accuracy in cases where a steam-boiler .but no engine is used, as, for example, in establishments for canning fruit,

in laundries, &c., &c. A

Having thus described-my invention, what I claim as new, and desire to secure by Letters Patent, is- The combination of the float F and valve v, seating upwards, with the chambers C and C', the pipes D S W, and the cylinder A, the valve being attached directly to the float F by the valve-stem j', and thel parts operating without levers or gear of any description, but substantially in the manner and for the purposes specified.

RICHARD GORNALL.

Witnesses:

J oHN W. ATKINSON, JAMES LOGAN.

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