US405209A

US405209A - Feedeeick a

Info

Publication number: US405209A
Authority: US
Publication date: 1889-06-11
Anticipated expiration: 1906-06-11

Description

(No Model.)

P. A. GARDNER.

STEAM BOILER.

No. 405,209. Patented June 11, 1889.

Zuni/0%} ATTORNEY N. PETERS. Phnlo-Lilhugnphnr. Washmgion, n. c.

blow-off pipe.

UNITED STATES PATENT OFFICE.

FREDERICK A. GARDNER, OF CATSKILL, NEW YORK, ASSIGNOR TO F. A.

GARDNER & 00., OF SAME PLACE.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 405,209, dated June 11, 1889.

Application filed November 1, 1888.

To all whom it may concern:

Be it known that I, FREDERICK A. GARD- NER, a citizen of the United States, residing at Catskill, in the county of Greene and State of New York, have invented new and useful Improvements in Steam-Boilers, of which the following is a specification.

This invention relates to an improvement in steam-boilers, as set forth in the following specification and claims, and illustrated in the accompanying drawings, in which Figure 1 is a section of a steam-boiler along the line a; m, Fig. 2. Fig. 2 is a section along the line y y, Fig. 1, and looking upward in lzhe direction of the arrow opposite to that Similar letters indicate corresponding parts.

In the drawings, the letter D indicates a drum, which is provided with the stand-pipe O. A indicates a feed pipe, and B is a The feed-pipe supplies water to a stand-pipe O and to the drum D. The circulating-pipes E F communicate with the stand-pipe and with the drum. The pipes E are secured to the stand-pipe at a higher level than the pipes F. The parts or branches of the pipes E F which extend from the standpipe are bent or provided with elbow-joints G, so as to increase the length of such parts or branches, and thus increase the surface of such pipes which is exposed to the heat or fire. A grate II is adapted for the support of fuel which can be fed onto the grate through the fire-door I. The ash-pit can be cleaned through the door K.

The grate H is shown as closing the bottom of a fuel-magazine S. A toothed ringL is secured to the grate, and a cog-wheel M and crank N can be made to rotate or oscillate the ring L and grate H when it is desired to distribute the fuel evenly over the grate or to remove the ashes from the fire. The grate is rotatable or oscillatory, being supported on a sleeve 0 surrounding the stand-pipe O. The products of combustion pass to the chimney Q by way of the flues P,which extend through the drum D. Openings R may also be provided through which the products of combustion may pass about the drum and within the outer shell T to the chimney Q.

Serial No. 289,742. (No model.)

From the construction shown it will be noticed that the water in the horizontal branches of the circulating-pipes E F is exposed more directly to the heat than the water in the stand-pipe C, and consequently the water in the pipes E F will pass from such pipes into the drum D, and will be replaced by Water passing from the stand-pipe G into the circulating-pipes E F, so that a circulation of the water is effected which materially facilitates the production of steam. The shell T is shown provided with hand-holes having covers U. These hand-holes correspond to the flues P. Said holes enable the flues to be readily cleaned, since by removing the covers U and passing cleaning-rods through said holes and flues any soot or impurity in the flues can be removed therefrom. I This cleaning can be done even while the boiler is in use.

What I claim as new, and desire to secure 'by Letters Patent, is-

1. In a steam-boiler, the combination, with a stand-pipe 0, having a feed-pipe entering its lower end, of the drum D, arranged above and having the stand-pipe entering its bottom, the circulating-pipes of elbow shape, leading from the stand-pipe to said drum, and the flues P traversing said drum, substantially as described.

2. In asteam-boiler, the drum D, the standpipe entering its bottom, the elbow-shaped circulating-pipes E F, leading from the standpipe to the drum, and the flues P traversing the latter, substantially as described.

3. A steam-boiler composed of the shell T, the drum D, arranged above the stand-pipe C, the upper end of which communicates with the drum, the circulating-pipes leading from the stand-pipe into the drum, the fire-place H, the fire-flues P, extending through the drum D, and smoke-stack Q, leading from shell T, substantially as described.

4. The combination, with the shell T, the drum D, and the stand-pipe C, of the grate H, provided with a sleeve which fits the standpipe, the fuel-magazine S, and means, substantially as described, for imparting to the grate a revolving motion.

5. A steam-boiler composed of the drum D, arranged above the stand-pipe O, the upper end of which enters the drum D, the eireulat- In testimony whereof I have hereunto set ing-pipes leading from the stand-pipe into my hand and seal in the presence of two subthe drum, the fire-place H, the fire-fines I, scribing Witnesses.

extending through the drum D, the shell T, FREDERICK A. GARDNER. ['L. having hand-holes for the fines, and smoke- \Vitnesses:

stack Q, leading from the shell '1, substantially HENRY D. SHORES,

as described. \V. IRVING JENNINGS.