US463501A

US463501A - Steam-generator

Info

Publication number: US463501A
Authority: US
Publication date: 1891-11-17
Anticipated expiration: 1908-11-17

Description

2 Sheets-Sheet 2.

(No Model.)

0. W. FOSTER. STEAM GENERATOR.

Patented Nov. 17, 189.1.-

C/LarZeJ WESZ'GI' UNITED STATES PATENT OFFICE.

CHARLES \V. FOSTER, OF NEXV HAVEN, CONNECTICUT.

STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 463,501, dated November 17,1891.

Application filed February 12, 1891 Serial No. 381,206. (No model.)

To all whom it may concern! Be it known that 1, CHARLES W. FOSTER, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented anew and useful Steam-Generator, of which the following is a specification.

This invention relates to steamgenerators, and among its objects are to provide a device of this class which shall be simple and inexpensive, and which, in proportion to its size, shall be provided with a very extensive heating-surface, and which shall also be so constructed as to render its various parts readily accessible for purposes of examination or repairs.

\Vith these ends in view the invention consists in the improved construction, arrangement, and combination of parts, which will be hereinafter fully described, and particularly pointed out in the claims.

In the drawings hereto annexed, Figure 1 is a side elevation, partly in section, of a steam-generator constructed in accordance with my invention. Fig. 2 is ahorizontal sectional view of the same. Figs. 3 and 4 are detail views of the lower end of one of the pipes 17 and the header connected therewith. Fig. 5 is a sectional detail view taken on the line 5 5 in Fig. 2. I

Like numerals of reference indicate like parts in all the figures of the drawings.

Upon a base 1, which is preferably constructed of cast-iron, is mounted a casing or jacket 2, which is preferably constructed of a double thickness of sheet-iron and provided with a lining 3 of asbestus for the double purpose of protectingthe casing or jacket and of preventing the loss of heat by radiation. .The jacket or casing 2 supports the cap or bonnet 4,which is preferably constructed of cast-iron, and is provided with a flange 5, fitting over the upper edge of the casing.

The base 1, within which is located the ashpit 6, accessible through a suitable door 7, is provided with a centrally-located sleeve or collar 8, which is secured upon the bottom of said base by means of screws orbolts 9. The central opening 10 of the sleeve 8 is screwthreaded, as shown, and is placed in alignment tire casing and up through the cap or bonnet 4, which is provided with an opening 14: for the passage of the said stand-pipe, as well as for the products of combustion,which maybe carried off through a suitably-arranged pipe. The stand-pipe 13 is provided near its lower end with a series of radially-extending pipes '15, each of which, excepting those which are in alignment with the furnace-door 16, carries at its outer end a header 16, which connects the lower ends of a series of pipes 17, the upper ends of which have elbows 18, which are independentlyconnected with the stand-pipe 13 above the water-line in the latter. In order to avoid weakening the standpipe by making perforations therein too close together, the elbows are connected with the said stand-pipe at different elevations, as will be clearly seen in Fig. 1 of the drawings, ordinary right and left hand threaded sleeves or couplings being employed to make the connections. The radially-extending pipes 15, which connect the stand-pipe with the headers at the lower ends of the manifold pipes, serve to support the grate. It will thus be seen that the furnace or fire-box is formed in the lower part of the jacket or casing and is completely surrounded by the vertical manifold pipes, except at the pointwhere the furnace-door 16 is located.

21 designates a series of serpentine pipes, the upper and lower ends of which are connected with the stand-pipe respectively above and below the water-line, short pipe-sections 22 and coupling-sleeves 23 being employed to make the desired connections. Of these serpentine pipes, the lower ends of which are directly above the fire-box, any desired number may be employed, and it will be observed that said pipes, which are located directly in the flame, admit of the free circulation of the water.

25 designates an exteriorly-arranged standpipe, the upper and lower ends of which are connected with the stand-pipe 13, respectively above and below the water-line, by means of the pipes 26. The stand-pipe 25 has an enlargement or chamber 27, to which are connected the water-gage 28 and the try-cocks 29. The said stand-pipe 25 is also provided with the steam or pressure gage 30. A supply-pipe 31 is suitably connected to the standpipe 13 near the lower end of the latter.

The operation and advantages of my invention will be readily understood from the foregoing description, taken in connection with the drawings hereto an nexed,by those skilled in the art to which it appertains. The heating-surface of the steam-generator is formed by the stand-pipe 13, the manifold pipes 17, and the serpentine pipes 21, of which a large number may be used without interfering with the draft in the furnace. It follows that water may be converted into steam very rapidly and with a comparatively small consumption of fuel. All the parts of the device are easily accessible for repairs and the construction is simple and inexpensive, W'hen it shall be necessary to blow out the stand-pipe and its connections, the steam connection for this purpose may be made with the interiorly-tln'eaded opening 10 in the sleeve 8 at the lower end of said stand-pipe. At other times said opening is to be closed by means of a suitable Valve. The upper end of the stand-pipe forms the steam -dome from which the steam may be taken in the usual manner. The base 1 is provided with a suitable bearing for a shaft 32, having at its inner end a spur-wheel 38, meshing with teeth or cogs formed upon the under side of a disk or carriage 34, mounted revolubly upon the stand-pipe 13 and resting upon the upper sides of the pipes 15, radiating from the latter. The carriage 3i supports the grate-bars 520. The outer end of the shaft 32 is provided with a crank 35 or other suitable means, whereby it may be manipulated to revolve the carriage 34. By this mechanism the grate may be very conveniently adjusted and rotated, thus facilitating the starting of fires and enabling the contents of a fire-box to be thoroughly and easily shaken.

Having thus described my invention, what I claim is- 1. In a steam-generator, the combination of a furnacecasing, a standpipe extending through the latter, pipes extending radially from said stand-pipe and having headers at their outer ends, the manifold pipes connected at their lower ends by said headers, and connections between the upperends of said manifold pipes and the stand-pipe, substantially as set forth.

2. In a steam-generator, the combination of the furnace-casing, the stand-pipe extending through the same, the pipes extending radially from said stand-pipe and having headers at their outer ends, the manifold pipes connected at their lower ends by said headers, and pipes connecting the upper ends of said manifold pipes independently with the stand-pipe above the water-line of the latter, substantially as set forth.

In a steam-generator, the combination of the furnace-casing, the stand-pipe extending through the same, pipes extending radially from the said stand-pipe near its lower end and having headers at their outer ends, the manifold pipes connected at their lower ends by said headers, and independent couplings connecting the upper ends of said manifold pipes with the said stand-pipe at diiferent elevations, as and for the purpose set forth.

4. In a steam-generator, the combination of the furnace-casing, the stand-pipe extending through the same, pipes extending radially from said stand-pipe near its lower end and provided with headers at their outer ends, the manifold pipes having their lower ends connected with said headers and their upper ends connected with the stand-pipe, and the gratebars supported upon the pipes extending radially near the lower end of the stand-pipes, substantially as set forth.

5. In a steam-generator, the combination of the furnace-casing, the stand-pipe extending through the same, the manifold pipes arranged within the furnace-easing and having their upper and lower ends connected with the stand-pipe above and below the water-line, and the serpentine pipes arranged within the furnace-casing and having their upper and lower ends connected with the stand-pipe, substantially as and for the purpose set forth.

6. In a steam-generator, the combination of the furnace-casing, the base supporting the same and having the ash-pit, the stand-pipe extending through the base and furnace-casing and through the cap or bonnet of the latter, the manifold pipes and the serpentine pipes arranged within the furnace-casing and having their upper and lower ends connected with a stand-pipe above and below the waterline, the feed-pipe connected with the lower end of the stand-pipe, and the exterior pipe connected with the stand-pipe above and below the water-line and having a chamber or enlargement, the water-gage and the trycocks connected with said chamber, and the steam or pressure gage arranged at the upper end of the exterior pipe, substantially as and for the purpose set forth.

7. In a steam-generator, the combination of the base having the ash-pit, the furnace-casing supported upon said base, the sleeve or collar mounted upon the bottom of the base and having an interiorly-threaded opening registering with an opening in the bottom of the base, and an interiorly-threaded flange,

and the stand-pipe mounted in said flange and extending upwardly through the base and the furnace-casing, substantially as and for the purpose set forth.

8. In a steam-generator, the combination of the base, the central stand-pipe having radiating pipes near its lower end, the carriage mounted revolubly upon the radial pipes supporting the grate-bars and having teeth or my own I have hereto affixed mysignaturein cogs on its under side, and the shaft journaled presence of two Witnesses. in the base and having a spur-wheel engag- A w r ing said teeth 01 cogs, all combined and op- I CHAS 5 crating substantially as and for the purpose Witnesses:

set forth. WALTER POND,

In testimony that I claim the foregoing as JOSEPH D.,RIGGS.