US354902A - James haetley - Google Patents

Description

(No Model.) I

J. HARTLEY.

HEADER FOR STEAM BOILERS.

/ No. 354,902. Patented Dec. 28, 1886.

NrTEn STATES PATENT FFicE.

IRON WORKS, OF SAME PLACE.

HEADER FOR STEAM-BOILERS.

SPECIFICATION forming part of Letters Patent No. 354,902, dated December 28, 1886.

Application filed April 2, 1886. Serial No. 197,516.

To all whom it may concern:

Be it knownthat 1, JAMES HARTLEY, of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Headers for Steam-Boilers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention has relation to that class of devices known as headers for steam-boilers, which headers consist of metallic boxes, into which the tubes of a sectional steam-boiler are secured, the headers being applied one to the other in such manner as to form portions of the end walls of the boiler and secure the desired communication between the various tubes.

The objects of my present invention are, chiefly, to so construct the headers that they may be easily and cheaply made and mounted one in connection with the other,affording free access to the ends of the tubes and connectingnipples,for the purpose of expanding them or securing them in place; to make the closingplates ofsuch form and size that they may be easily and quickly located and secured in position or removed when required; to make the joints all perfectly steam-tight and of such simple form that they may be easily and accurately fitted, and to secure other advantages, as will hereinafter appear. To accomplish all of this my improvements involve certain new and useful peculiarities of construction, relative arrangements, or combinations of parts and principles of operation, as will be herein first fully described, and then pointed out in the claims.

In the accompanying drawings,forming part of this specification, Figure 1 is an elevation showing two headersarranged side by side, the same being constructed in accordance with my invention, involving my improvements and adapted for the reception of five boiler-tubes. Fig. 2 is a sectional elevation upon a plane passing through line 00 m of Fig. 1. Fig. 3 is a top or plan view of the header or box shown at the right of Fig. 1. Fig. 4 is an elevation similar to Fig. 1, but showing the headers adapted to receive three boiler-tubes each, in-

(No model.)

stead of five, as in Fig. l, the principles being the same in both cases.

These views are deemed sufiicient to illustrate the character and scope of my invention, and in all the figures like letters of reference, 5 5 wherever they occur, indicate corresponding parts.

A is the header or box, made of cast metal and of the general form indicated that is,

"wider on one edge than the other, so as to receive a greater number of tubes in one row than in the other, and so that when applied together,the longer edge of one in continuation of the shorter edge of that adjacent, they will properly match together and form the closed end or wall of the boiler. That the joints between the headers shall be suftieiently tight, each header is provided with webs or projections on the front face, 'as at a a,extendi ng beyond the walls of the box, of which the cor- 7o ners are generally rounded off, substantially as indicated.

The openings for the r eception of the boilertubes are represented at b b. These are located in the back plate of each header, there, being, according to the form shown in Fig. 1, three in one row and two in the other, and ac cording to the form shown in Fig. 4 two in one row and a single one above or below. More than three or five'tubes might be accommodated, following the same general arrangement; but five is about as many as would likely be desirable. The ends of the tubes are expanded in place and must be reached through the front side or face of the header. For this purpose openings are left in the front face of each. In the form shown in Figs.1 and 2 three circular openings, as at c, are formed opposite I the three tube-holes at the back, and an oblong or general elliptical opening opposite the re-. 0 mainingrow of. two.

In the form shown in Fig. 4. a single circular and single oblong opening are provided,as indicated. Through these openings the ends of the several tubes are reached,and the openings are made amply large, so that the necessary expanding may be easily accomplished.

The covers or covering-plates are made to fit tightly against the inner surfaces of the margins of the openings, which margins form the seats for the covers. The seats are accurately faced off, as are also the edges of the plates, so as to make a steam-tight joint all around.

The circular plates d are first introduced through the larger opening, and being prop erly seated are held in place each by a bolt,as B, and yoke, as (J, the latter bearing upon the exterior face of the box. The larger plate e is next introduced, and this is held to its seat by a pair of bolts, as D D, and corresponding yokes, as E E. The bolts D have enlarged heads, and the plate 0 is provided with a recess to receive the heads of the bolts,which are introduced from the exterior, as through the enlarged exterior portions or months 9 gof the recess. The circular openings and circular plates are very easily turned off or trued by a simple revolving tool,and the single enlarged opening and its corresponding covering-plate are of such form that they may be easily faced.

The boxes are strengthened by interior ribs, substantially as indicated. The openings in the front face are so disposed as not to weaken that portion ofthe box. The bolts D,ifbroken, may be easily replaced at any time without dis turbing the plate, and they may be adjusted along the plate, (their heads moving in the re: cess provided for them,) so as to bring the yokes to bear upon any part of the face of the box or header. The nuts G being turned down to place,hold the plates and yokes firmly in posit-ion. Access to the end of any tube may be had at any time by detaching the plate opposite it.

The headers are connected one with the other by short tubes or nipples in the usual way, the same being seated in openings, as hh, provided for them.

The headers are placed together side by side and in horizontal rows in any desired numbers, and the tubes are so disposed that those in one row will be located over the spaces between those of the row next below.

The boxes or headers are strengthened by the interior ribs, which are so arranged as not to interfere with the free movements of steam from one part to the other, and when con structed substantially as above explained are found well adapted for the purpose or object previously stated.

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

1. In a header for sectional boilers,the front face provided with one or more circular openings and an elongated opening, the inner surfaces of the margins of each of which are faced off to form seats for the covering-plates, and the covering-plates are arranged to be introduced or removed through the elongated opening, substantially as shown and described.

2. In a header for sectional boilers, the combination, with the front face, of the circular and elongated plates seated upon the inner surfaces of the margins of their respective openings and held in place by bolts and yokes, all said plates being arranged to be introduced or removed through the elongated opening, substantially as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand in the presence of two witnesses.

JAMEs HARTLEY. Witnesses:

JOHN BUOKLER, WORTH OSGOOD.

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