US314947A - Steam-boiler - Google Patents

Description

(No ModeL) P. I. LYNCH.

STEAM BOILER.

Patented Mar. 31, 1885.

UNITED STATES PATENT EEICE.

PETER I. LYNCH, OF CORRY, PENNSYLVANIA.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 314,947, dated March 31,1885.

Application tiled April 11, 1884. (No model.)

To all whom 1215 may concern.'

Beit known that I, PETER I. LYNCH, a citizen of the United States, residing at Corry, in the county of Erie and State of Pennsylvania,

' have invented certain new and useful Improvements in Steam-Boilers; and I do hereby declare the following to be a full, clear, and eX- act description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to the construction of steam-boilers, andparticularl y to that type of boiler which is known as locomotive-bonen7 so called from its forni rather than its application or usc.

The invention relates, particularly, to the construction of the water-ring at the bottom of the fire-box and boiler.

The invention is illustrated in the accompanying drawings, as follows:

Figure l is a vertical transverse section taken through the dome, the wagon-top, and the fire-boX. Fig. 2 is a vertical longitudinal section taken through the same parts as are shown in Fig. 1. The two lines of section are at right angles to each other. Fig. 3 is a perspective view of the water-ring. Fig. 4 shows an alternative construction ofthe water-ring.

A is the part of the boiler which is known as the wagon-top.77 A is the dome. B is the lire-box; C, the water-ring. D D, Snc., are braces or stays. a a are the mud-spaces; a a', the openings into the mud-spaces.

Heretofore the water-ring of boilers has been made with two iianges, each of which extended outward, one at the upper and the other at the lower side of the ring, thus giving its vertical section the appearance of the letter U laid on its side-thus C-and the ring when in position sat upon the wagon-top plates, and was sat upon by the fire-box plates, and therewere two rows of rivet-heads within the space between the flanges, and as this space was narrow and was part of the mud-space of the boiler, it was very difficult to clean out the sediment from around the rivet-heads, and it was so difficult to put in these rivets that it was the practice to make the lower curved part of the wagon-top of a separate piece of iron and rivet it on first, and then rivet the main part of the wagon-top to it, thus making a seam along the side of the boiler, just above the mud-space.

I show two forms of water-ring, one with an upright part, o, and two flanges, one of which, c', is an inner iiange, and the other, c2, is an outer iiange. The other form, that shown in Fig. 4, has but one flange, o', which is an inner iiange. I prefer the former forni, as it gives a better mud-space, a, as will be seen by comparing Figs. l and 4. Otherwise the two forms are practically alike, as the most essential feature is the inner iiange, o. `This inner liange is essential,because it permits the rivets 2 2, &c., to be put in without being held from the inside of the boiler; or, in other words, the riveting of the wagontop plate to the water-ring is all outside work, and can be done much better and much faster, and, further, there are no rivet-heads in the mud-space. Both the flanges o' and c'l may turn in toward the center of the ring; but this is not essential, for the ring when as shown in either figure may be riveted to the fire-box before it is put into the wagon-top, and so, oi' course, the workof putting in the rivets l l, Src., will be outside work, and the presence of rivet-heads along the top of the mud-spaceis not objectionable. The water-ring, as herein shown, may be made of Wrought-iron; but I ani in the habit of making them of nlalleableized cast-iron, and they may be made of oast-steel, and ofcourse they might be made of ordinary cast-iron, if inade strong enough to not break when the rivets were being headed.

By the use of my water-ring there is no difiiculty whatever inusing one sheet to form the sides and top of the wagon-top, all the riveting in the ring being outside work, as explained above, and,besides, as before stated, much time is saved, as inside work is much slower.

These water-rings may constitute an article of manufacture and trade, as they can be made and sold to boiler-makers generally.

W'hat I claim as new is- In a steam-boiler, the combination, with thc plates A and B, of the water-ring C, having internal flange, o', and external fia-nge, c2, sub1 stantially as shown.

In testimony whereof I affix my signature in presence of two witnesses.

PETER I. LYNCH.

Witn esses:

C. B. ELY,

Isaac M. KENNEDY.

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