US139194A - Improvement in water-regulators and alarms for boilers - Google Patents

Description

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R. SAFLEY. Water-Regulators and Alarms for Boilers. y

Patented May 20,1873.

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PHDTD'm-IOGRAPHIC .NX OSBRN PROC vWitness: UQW/CKQMM UNITEEr STATES ROBERT SAFLEY, SENECA FALLS, NEW YORK.

IMPROVEMENT IN WATER-REGULATORS AND ALARMS FOR BOILERS.

Specification forming part of Letters Patent No. 139,194, dated May 20, 1873; application led March l2, 1H73.

tain new and useful Improvements in Water-Regulators and Alarms for Steam-Boilers; and dohereby declare that the foly lowing is a full, clear, and exact description thereof, reference being had to the accompanyin g drawing and to the letters of reference marked thereon making a part of this speciication.

The nature of my invention consists in the construction and arrangement of a self-acting Water-regulator and alarm for steam-boilers, as will be hereinafter more fully set forth.

ln order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, in which- Figure 1 is a perspective view of a steamboiler, with my invention attached thereto. Fig. 2 is an end view ofthe same, and Figs. 3, 4,. and 5 are detached views, showing certain parts of my invention.

A represents a steam-boiler of any suitable construction. On one side of the boiler A is a standard, B, to which is attached a cylinder,

C, connected by pipes D and E with the boiler A. The pipe D, leading into the bottom of the cylinder, lets Water from the boiler into the cylinder, and the upper pipe E, con' necting the top of the cylinder with the steam space of the boiler, lets in steam, to equalize the pressure. Through a stuffing-box in the top of the cylinder C passes a rod, a, which is provided at its lower end, within the cylinder, with a iioat, which rises and falls with the water in the cylinder, and the water in the cylinder rises and falls with the water in the boiler, always keeping on a level with the same. On the upper end of the float-rod a is attached a cross-head, b, which slides upon guide-rods e e attached to the cylinder, and said cross-head is `provided with a vertical bar, d, from which two pins, f and f', project through a vertical'slot in the standard B and through a plate, B', attached to the rear side of said standard. The plate B is attached to the standard B in such a manner as to form a space between them, and in said space, at or" near the lower end, are provided two hooks,

h1 and h2, and at or vnear 4the upper endis pivoted a similar hook, 7L. The hooks h, hl; and h2, respectively, catch on and holdcams il, and i2, which, when thus held by the hooks, are intended to support weights H, H1, and H, respectively, said weights being provided with hooked rods 7c to hook on to the cams. From the rod to the weight 'H2 a cord, m2, passes o ver'a pulley, n2, and connects with an arm or lever, p, on the alarm-Whistle Lto operate the same, as shown in Fig. 2. From the rod of the weight H1 a cord, fm1, passes over pulleys nl al, and connects with a lever, J', for opening the stop-cock in the steam-pipe K` leading from the boiler to the pump L. From the rod of the weight H a cord, m, passes over a pulley, n, and connects with a lever, J, for closing the stop-cock in the steam-pipe K. The pump L is constructedin any of `the known and usual ways, and connected by a pipe, M, with the boiler at or near its bottom, and by a pipe, N, with the Water-tank or well. The levers J and J are placed loosely` on the stern s of the stop-cock t in the steam-pipe K, and to each lever is pivoted or hinged a weighted arm, O, provided on its inner side with a tooth or projection, a', to lit in correspending notches or recesses `r/,umadeon a disk or wheel, fw, attached on the `stop-cock stem s. i

All the weights H, H1, and H2 being suspended, as above described, on their respective cams t', il, and 2, and these held by the hooks h, h1, and h2, then, when the Water in the4 boiler and cylinder falls, the float in the cylinder falls with it until the pin j" strikes the hook h. This releases the cam il, allowing the weight H1 to fall down, and thereby pull the lever J. The swinging arm 0 on this lever, resting, with its tooth a/,in one of the notches y on the Wheel w, causes, when the lever J is pulled by the Weight, as just mentioned, the wheel w to -turn and, open the stop-cock t. This lets steam into the pump L, starting the same, so as to pump water into the boiler. Should, by any derangement of any part, the boiler not work, the water in the boiler and cylinder will fall still more, and the pin f strike the hook h2, causing the PATENT (3y-,151IGE- u weight H2 to fall and sound the alarm. When the pump is in operation the Water in the boiler and cylinder will continue to rise, carrying the oat in the cylinder with it, until the water has attained the height desired, when the pin f strikes the hook h, releasing the cam z', and causing the Weight H to fall, thereby pulling the lever J, which, by the tooth on its arm O, turns the stop-cock t, closing the Asame and shuttlng o' the steam from the pump Il.

The pin f may be changed in holes on the bar d, so as to cause the Weight H2 to drop at Whatever height it is desired that'the Water shall be in the boiler.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The cylinder C having a oat inclosed, which is connected by the rod a with the cross-head b moving on the guides e e, said cylinder being removed from and connected with the boiler by the pipes l) E, substantially as and for the purposes herein set forth.

2. Cross-head b attached to the float-rod a and provided with the bar d, having adjustable pin f, in combination with the hook h,

cam i, weight H, cord m, and lever J, for

closing the stop-cock in the steam-pipe connected with the pump, substantially as herein set forth. l

3. The cross-head b attached to the floatrod a, and provided with the bar dhaving pin f l, in combination with hook h1, cam il, Weight H1, cord mi, and lever J', for opening the stop-cock in the steam-pipe connected with the pump, substantially as herein set forth. l

4. The cross-head b attached to the floatrod a, and provided with the bar dhavin g pin j", in combination with the hook h2, cam i2, Weight H2, cord m2, and whistlelevenp, for sounding the alarm, substantially as herein set forth.

6. The combination of the valve-stem s, wheel w, with notches y y, levers J J', and Weighted arms O O, with projections f f, substantially as and for the purposes herein set forth.

ln testimony that I claim the foregoing I have hereunto set my hand this 3d day of February, 1873.

ROBERT SAFLEY.

Witnesses:

A. It. PALMER, CEAS. T. HALL.

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