US47365A - Improvement in low-water indicators for steam-boilers - Google Patents

Description

UNITED STATES PATENT Y OFFICE.

G. ADOLPH RIEDEL, OF PHILADELPHIA, PENNSYLVANIA.

Specilication forming part of Letters Patent No. 47,365, dated April 18, 1865.

To all whom, it 11m-y concern:

Be it knownthat I, G. ADoLrI-I RVIEDEL, ol' the city and county of Philadelphia, and State ot' Pennsylvania, have invented a new and Improved Selt'- Regulating Steam Boiler and Steam Indicator' and Alarm 5 and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part ot' this speciiication, in which- Figure l is a side elevation of a Vsteamboiler with the improvements attached lo the same.. Fig. 2 is a top view of the same. Fig. 3 is `an end view of the boiler and a portion of-the frame-work with which it is connected. Fig. 4 is a horizontal section of a modified arrangement of the receiver C. Figs. 5 and 6 are a bottom and side view ofthe whistle O.

Like letters in all the li gures represent the same parts.

The nature ot' my invention consists in so constructing and arranging the boiler and parts attached to the same that when the water in the boiler gets below the water-line the communication therewith is cut oft' from a water-receiver above it, where it had been forced by the pressure of steam in the boiler, and the water passes down a connecting-pipe by which the receiver is emptied and its position changed, by which a pump is set to work to fill the boiler, and a whistle or other device is operated to give an alarm; or else I connect with the boiler a weighted lever, or system ot' levers, which causes the boiler to ascend when the wateris diminished to a certain degrec, to produce the same results.

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

A is the boiler, which is supported by a suitable framework, B. It rests on the concaved edges of the plates B B', which tit loosely in the grooved uprights ofthe frame B, to allow the boiler to be elevated in the manner I will hereinafter describe.

Gis a receiver, which has communication with the boiler A by means of the shit'ting pipe D and the standing pipe E, the latter having a permanent connection with the boiler at its lower end, and a loose connection with the pipe I) by means of the ball-and-socket joint a b. The upper end ot' the pipe O is rmly secured to the lower side ot' the receiver C by means of screw-bol ts which pass through the iange c of the pipe.

F is an air-vessel which connects with the said receiver. On the lower side otl the receiver, at it rear end, there is an arm, G,which communicates with the lever H by means ot' y the upright piece I. The lever works on the fulcrum-pin d in the standard J. There is an adjustable counter-weight, K, on the projecting end ot' the lever. `The standard J has a. socket in its upper end, in which the lower4 end of the bent rod L has an easy tit, to allowittoturu by the-oscillation ofthe receiver, which will hereinafter `be described. other end of said rod is connected with the swivel M, whose front end lits on the stein e ot' the conical valve N of the whistle O,\vhicl| is connected to the air-vessel F.

The construction and arrangement of the whistle and valve are clearly shown in Figs. 5 and 6.

The operationis as follows When the water in the boiler is abovcthe water-line, (indicated by the red line a b in Fig. 1,) to which the lower end ot' the standing pipe E projects, the pressure of the steam in the boiler'causes the water to flow out of the boiler to the receiver G, except what is equivalent to the pressure ofthe air in the air-vessel F, at which time the receiver is brought into a horizontal position, (indicated by the red line c dg) but when the water in the boiler gets below the line a b, the communication being cut oli` from the pipe E, the water in the receiver, being specically heavier than steam, passes down thev pipe into the boiler, and the receiver being thus lightened the weighted leverH cauts the rear end upward, the ball-and-socket joint c b allowing it to move freely. The receiver is shown in its canted position in Fig. 1. In proceeding toward the position represented, the swivel M is turned partly round, which brings the opening f ot' the conical valve N in connection with the opening g ot' whistle O, which allows the steam to escipc from the receiver C through the air-.vessel F, and-pass into the crown-recess [L ofthe whistle, and give an alarm. The conical valve N, by means of' the steam in the receiver G, is kept tight against its seat i, so as to prevent the escape ot' the steam at other times; but when the pressure of the steam in the boiler, and con` The squently in the receiver, is exhausted the valve N drops sufciently to allow the atmospherc lo iow into and occupy the receiver, and the water passing freely down into the boiler, all danger ci' freezing is prevented. I set a pump to work to iill the boiler by connecting one end of a rod or lever therewith, and the other end to the receiver U, or one ofits attachments.

In Fig. 4 a modified arrangement is shown for connecting the receiver with the boiler. In this arrangement, which is represented by a longitudinal section through the receiver, P represents a pipe in the form of a T, having its small end screwed into the end of the receiver. In the large end ot' said 'pipe there is a valve, Q, of conical form, which fits a corresponding seat, j, in the pipe, leaving a chamber, lc, between it and the plug or head l, which communicates with the receiver by means of the small end of the pipe. rIhe hollow stem m of the valve ts in the horizontal part of the elbow R, which is connected at its lower end with the standing pipe E, llercinbefore described.

S is a helical spring on the stein m ot' the valve, which, bearing against the end of the elbow R and the contiguous end of the pipe I), keeps the valve Q at all times sufficiently tight against its seat to prevent the escape of the steam.

I contemplate using a iiexible pipe as another modification of the connection ofthe receiver U with the boiler, the said pipe being simply connected at one end with the boiler in a similar manner to that of the standing' pipe E, and the other end to lthe receiver.

In either connection ofthe receiver with the boiler a spring may be used for sustaining the weight of its rear end instead of the weighted lever H, although the lever in most casesmay be found to be the most convenient device.

A modication of the invention is represented by a system of levers connected with the lower side ot' the boiler A. In this arrangement I dispense with the receiver C and produce the same results as those described by its change of position by the vertical raising of the boiler when the water is lowered therein to a given line.

In Fig. 1, T represen ts a lever whose fulcrum is situated in cheeks, between which the end of the lever works on the upper end of the standard U. V is a counter-weighton the lever. The said lever is connected to the levers T and T, which operate equally on each end of the boiler, by means ot' the jointed pieces Vbeing connected with the pump and whistle by analogous means as those described above, adopted in the use of the receiver C, similar effects are produced by the elevation of the boiler as those accomplished by the canting of the receiver.

Having thus fully described my improved self-regulating steam-boiler and steam indicator and alarm, what I claim therein as new, and desire to secure by Letters Patent, is-

1. rThe oscillatin g receiver G, combined and arranged with the boiler A, substantially as de scribed, and for the purposes specified.

2. The jointed pipes D and E, arranged and operating substantially as described.

3. The combination of the weighted lever H with the receiver C, substantially in the manner described, and for the purpose set forth.

, 4. The combination and arrangement ot' the conical valve N and whistle O, or other alarm, substantially as described.

In testimony that the above is my invention v G. ADOLPH RIEDEL. [L.

Witnesses STEPHEN UsrIcK, DAVID ELDRIDGE.

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