US511968A

US511968A - Towillegar

Info

Publication number: US511968A
Authority: US
Publication date: 1894-01-02
Anticipated expiration: 1911-01-02

Description

(No Model.) 2 Sheets-Sheet 1.

D. RISLEY. STEAM BOILER ATTACHMENT.

No. 511,968. Patented Jan. 2, 1894.

R Ig9c1 fx= Wilgesses lay THE NAYIDNAL LITNDGRAPNING COIIPANV,

wunmamn. u. c.

2 Shets-Sheet 2.

(No Model.)

BISLEY STEAM BOILER ATTACHMENT.

Patented Jan. 2, 1894.

IIIIJIIIIIIIIIIIIIIII IIIIIIIIIIIIIII'IIIII III/II/IIII/I/lil/11/1211),rill/Ini n validly,ziilr,bi,illllziii m5 Nqmcmnl. LITHOGFAPNING COMPANY.

Wihyzsscs UNITED STATES PATENT OFFICE.

DAVID RISLEY, OF OOLFAX, \VASIIINGTON, ASSIGNOR OF ONE-HALF TO EPHRIAM BALDWIN, OF SAME PLACE.

STEAM-BOILER ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 511,968, dated January 2, 1894. A

Application filed July 25, 1893. Serial No. 481,436. (No model.)

To all whom it may concern:

Be it known that I, DAVID RISLEY, a citizen of the United States, residing at Colfax, n the county of IVhitman and State of Washmgton, have invented a new and useful Steam- Boiler Attachment, of which the following is a specification.

This invention relates to steam boiler attachments; and it has for its object to provide an improved attachment especially adapted for use in connection with locomotive boilers of the traction or thrashing machine engine type, which frequently employ straw for fuel.

To this end the main and primary object of the present invention is to provide an improved attachment which converts the ordinary straight flue boiler furnace into a straw burning furnace without any change in the construction thereof, while at the same time, together with auxiliary devices, providing means for efficiently heating up the feed water for the boiler.

With these and other objects in view which will readily appear as the nature of the invention is better understood the same consists in the novel construction, combination and arrangements of parts hereinafter more fully described, illustrated and claimed.

In the accompanying drawings:Figure l is a side elevation partly in section of a traction engine having a heater attachment connected therewith. Fig. 2 is an enlarged longital coil of circulating pipes D.

tudinal sectional view of the fire box, showing the false crown sheet in position therein. Fig 3 is a vertical cross section on the line xx of Fig. 2. Fig. 4 is a detail plan view of the false crown sheet coil in position within the fire box and the top covering thereof removed.

Referring to the accompanying drawings, A represents a traction engine of the ordinary type, the straight fine boiler B, of which, has its fire box 0, located at one end thereof, and is adapted to accommodate therein a horizon- The horizontal coil of circulating pipes D, is adapted to be arranged above the fire grate E, of the fire box, and below the line of the bottom row of the fines in the boiler, so as to not interfere with the free heat circulation through such flues. The said horizontal coil of pipes D, forms the main body of a false crown sheet, for the fire box, located intermediate of the top and bottom thereof, and said coil is covered at its top by a top covering of asbestus d, and fire clay d, on top of such asbestus, and which, together, form a closed covering for the crown sheet of pipes, so as to prevent the hot air from passing directly therethrough, and causing it to circulate around the front end thereof before entering the dues. curved baffle plate F, embraces the front ends of the coil D, and the covering therefor, and provides means for properly holding the coil crown sheet in its proper position within the fire box of the boiler.

By reason of the false crown sheet coil D, in the fire box of the boiler B, the said boiler can be readily adapted for burning straw at a small expense, without the necessity of the employment of any return flues, and said coil D, is provided at one end thereof with the depending inlet pipe G, which passes through the bottom of the fire box and has connected thereto one end of the circulating feed pipe g. The said coil D, is also provided at its opposite side with the depending outlet pipe G, which passes out through the front draft end of the fire box, and has connected thereto one end of the boiler pipe g, connected atits other end to one sideof the boiler B, and having a valve 9 The circulating feed pipe 9, which is attached at one end to the inlet pipe G, of the crown coil D, is'provided at suitable points thereon with the check valves H, and the globe valves h, which prevent the return flow of water therethrough, and also provide for cutting off the circulation of water entirely beyond the globe valves. The said circulating feed pipe is connected at its other end to one end of the heating coil I, arranged inside of the steam heating box J, disposed at one side of the boiler 13, and said circulating feed pipe g, has connected thereto adjacent to the box J, between the same and the first globe valve h, one end of the short nipple connection K, having a check valve is and a globe valve is, and providing means for directing the water from the coil I, directly into the boiler when necessary, described.

The coil I, inside of the box J, is kept constantly heated by means of the exhaust steam from the engine cylinder L,which steam passes from the said cylinder through the pipe Z, to the box J, and is carried from the box into the smoke stack of the boilerthrough the exhaust pipe 5', thereby providing means whereby the feed water for the boiler is thoroughly heated up before passing through the pipe g, and the coil D, where it is additionally heated before being carried into the boiler through the boiler pipe g. The heating coil I, is fed by the pump pipe M, connected at one end to such coil within the steam box and at its other end to an ordinary feed pump N, which has the usual connections and is operated in the usual manner in order to pump water into the boiler.

A water circulating pipe 0, is connected to one side of the boiler 13, and is coupled onto the pipe 9, at 0, to provide means for maintaining a constant circulation of water through the crown coil D, when the feed pump of the apparatus is not in use, thereby providing means for prolonging thelife of the coil D, and also keeping up the necessary circulation of water in the,boiler. The pipe 0, is provided with a cut-off valve P, to shut oif communication from the same and the pipe 9, and beyond the coupling or connection 0, and communicating with such coupling is arranged a blow-0d cook or valve Q, which provides for blowing off or discharging any accumulations of sediment from the crown coil, or in the pipe connections therewith.

When the feed pump N, is in operation, it will be apparent that a constant circulation of water is maintained through the pipe M, coil I, pipe 9, coil D, into the boiler-through the boiler pipe 9, whereby the boiler is supplied with the necessary water, and it will be apparent that while this operation is continued the feed water is thoroughly heated up in passing through the coils I, and D, which are connected with each other in order to provide efficient means for heating the feed water up to such a degree that its admission into the boiler will not materially lessen the temperature of the water therein. It will be obvious that in time the crown coil D, will become defective and leak so that its function as a heater will have been destroyed, but eventhen its use as a false crown sheet for the fire box may be continued until it is convenient to replace the old coil by a new one. It is therefore simply necessary in such event to cut off the circulation of water from such crown coil, and to do this the first valve 72, beyond the nipple K, is closed, thereby cutting oif communication between the pipe g, and the crown coil D, and the circulation with such coil through the pipe 9', is cut-01f by closing the valve 9 Now the valve k, in the nipple connection K, is opened so as will be presently minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described the invention, what is claimed, and desired to be secured by Let ters Patent, is

1. In a steam boiler attachment, the com-' bination with the boiler fire box; of a false crown coil of horizontal pipes, adapted to be arranged within said fire box intermediate of the top and bottom thereof and below the line of fines, an imperforate asbestos and fire clay top covering arranged on top of said coil,

an end curved baffle plate snugly embracing the front ends of the coil pipes and their asbestus and fire clay covering, andcirculating pipe connections with said coil and the sides of the boiler, substantially as set forth.

2. In a steam boiler attachment, the combination with the boiler having a fire box at one end; of a covered false crown coil arranged within said fire box intermediate of the top and bottom thereof, pipe connections with the crown coil of theboiler, an auxiliary steam heated coil, suitably arranged and connected with a feed pump and valved pipe connections connecting said steam heated coil with the connections of the crown coil and a feed pump, substantially as set forth.

3. In a steam boiler attachment, a covered false crown coil adapted to be arranged within a steam boiler fire box below the flue ends therein, an end baffle plate snugly embrac- ITO ing the front ends of the coil and its covering and arranged adjacent to the front wall of the fire box to leave a front circulating space, and suitable circulating connections with said coil, substantially as set forth.-

4. In a steam boiler attachment, the combination of a crown coil adapted to be arranged within a steam boiler fire box, pipe connections with the crown coil and the boiler, a suitably arranged steam box, an auxiliary heating coil located inside of the steam box and connected with a feed pump, a circulating feed pipe connected with said heating coil and one of the pipe connections of the crown coil, a valved nipple connection from said circulating feed pipe to one side of the boiler, and a valved circulatingpipe from one side of the boiler to one of the pipe-connections of the crown coil, substantially as set forth.

5. In a steam boiler attachment, the combination with a locomotive boiler and the engine cylinder; of a suitably arranged steam In testimony that I claim the foregoing as box, connected with the exhaust of the-cylinmy own I have hereto affixed my signature 1n der,-a heating coil arranged inside of said the presence of two witnesses.

box, a pipe connection from the coil to a feed DAVID RISLEY. 5 pump, anda similar connection from the coil Witnesses:

to one side of the boiler, substantially as set E. TOWILLEGAR,

forth. 0. M. KINCAID.