US157577A - Improvement in valve-inlets for tumbling-boilers - Google Patents

Description

H; BURGESS. Valve-inlets for Tumbling-Boilers.

Patented D ec. 8,1874,

UNITED STA-res PATENT OFFICE.

' HUGH BURGESS, or Ro-YEir's roan, PENNSYLVANIA.

IMPROVEMENT I'N VALVE-lNLTS FOR TUMBLlNG-BOILERS.

Specification forming part of Letters Patent No. 1 57,577, dated December 8, 1874; application filed November 9, 1874.

To all whom it may concern:

Be it known that I, HUGH BURGESS, of Royers Ford, Pennsylvania, have invented certain new and useful Improvements in Valve- Inlets for Tumbling-Boilers; and I do hereby declare the following to be a full, clear, and precise description of the same, reference being had to the accompanying drawing, which forms part of this specification, and in which- Figure 1 is a vertical side section of the inlet-trunnion of the boiler and its appliances; Fig. 2, an end view, from without, of the trunnion, showing the valve-openings; Fig. 3, an end view, from within, of the induction-pipe head-plate.

Similar letters of reference indicate like parts in all the figures.

My invention consists in a valve-inlet in the trunnion of a tumbling-boiler, so constructed as to afford continuous and uniform communication with the interior of the boiler, but to direct that communication alternately to each end thereof at every revolution.

For the better information of the public, I will proceed to describe my invention in detail.

B in Fig. 1 represents a portion of the side of the boiler. T is the trunnion, which is cast or made hollow, and attached to the boiler by rivets or otherwise, in the usual manner. The trunnions are set upon friction-rollers R, placed upon ordinary supports The interior of the trunnion is divided by a partition or diaphragm, d, into two parts. The outer end or face of the trunnion is provided with two valve-openings, a, b, of quadrant shape, as is shown in Fig. 2, placed opposite each other, and so arranged that one shall be upon each side of the diaphragm. The trunnion is provided with a rim, l, as shown in Fig. 1. Screwed or fitted into the inner end of the trunnion, and extending into and within the boiler, is a hollow connection-piece, C, also divided into two parts, into which are fitted two pipes, 17 q, extending along the interior side of the boiler, and terminating very near to each end. Covering the face .of the trunnion is the induction-pipe head-plate P, rigidly attached exteriorly to the trunnion or boiler. This head-plate is flared out in bell-shaped form, so as to cover the face of the trunnion,

and is provided with a flange, f. It is held closely against the face of the trunnion by the following contrivances: Surrounding the trunnion, back of the rim 1, is an annulus or ring of metal, 8, fitting closely, but free to rotate around the trunnion. Running through this annulus, and also through the flange f of the induction-plate, are bolts d d, which clamp the plate very tightly to the trunnion. To make a perfectly-tight connection for the rotation of the trunnion, packing is inserted in a hollow groove within the bell of the platepiece P, beneath the flange f, as is indicated by k. The interior of the bell of the plate is divided in half, as shown in Figs. 1 and 3, one half, 0, being hollowed out, and connecting direct with the pipe 19; the other half, 4;, is solid.

From the foregoing description it will be readily understood that as steam or other liquid is forced in the pipe 19, it will be alternately admitted through the valve-openings a and b as the trunnion rotates, in the one case entering the upper portion of the trunnion, and passing through the pipe 19 to the end of the boiler, where that pipe terminates, and in the other passing in. an opposite direction through the other portion of the trunnion and through the pipe q.

Now, the arrangement of the induction-plate with regard to the position of the boiler may be such as to admit the stock through each pipe as that pipe comes horizontal and is about to descend, or in any other position desiredthat is to say, the valves may be so arranged that the entering liquid shall be introduced only at the lower end of the boiler when it occupies a perpendicular position, and also as it is revolving until it becomes horizontal,

when it will be discharged from both. ends, al- 4 ternating again to the lower end as the horizontal is departed from.

It will be readily understood that, by reason of the area of the quadrant-valve openings, as referred to, and the area of the semicircular opening of the induction-plate, the same area of opening is at all positions of the trunnion exposed to the opening of the head-plate.

I do not confine myself to two openings of quadrant shape, but propose to use any number of 'openin gs that will produce the required effect; and the openings may also be made as a number of circles in both face and plate, all situated .on the same circle, and passing over each other as the rotation proceeds.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent of the United States, is

The valve-inlet above described, consisting of the hollow trunnion T, connecting-piece O, I

and pipes 12 and q, in combination with the induction head-plate P and pipe 10, all'arranged. and operating substantially in the manner and for the purpose specified.

. HUGH BURGESS.

Witnesses J. BONSALL TAYLOR,

J. QUINN.

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