US243912A

US243912A - Steam-boiler cleaner

Info

Publication number: US243912A
Authority: US
Publication date: 1881-07-05
Anticipated expiration: 1898-07-05

Description

(No Model.)-

A. JOHNSON.

STEAM BOILEROLBANER.

No; 243,912. Patented July 5,1881.

WITNESSES: v Q INVBNTOR:

ATTORNEYS.

UNITED STATES PATENT OFFICE.

ABRAHAM JOHNSON, OF YOUNG AMERICA, INDIANA.

STEAM-BOILER -CLEANER.

SPECIFICATION forming part of Letters Patent No. 243,912, dated July 5, 1881.

Application filed April 6, 1881. (No model.)

To all whom "it may concern:

Be it known that I, ABRAHAM JOHNSON, of Young America, in the county of Cass and State of Indiana, have invented a new and Improved Steam-Boiler Cleaner, of which the following is a full, clear, and exact description.

The object of this invention is to prevent the formation of scale in steam-boilers and to remove sediment therefrom.

The invention consists in combining a tube set in the head of boiler above the water-level, a stuffing-box, and a removable tube passing through the first one, said removable tube having a bent end extending nearly to the bottom of boiler, and provided with a blow-oft cock, as hereinafter described.

Figure 1 isa longitudinal sectional elevation of a boiler with the boiler-cleaner in position. Fig. 2 is a front-end elevation of the same.

Similar letters of reference indicate corresponding parts.

In the drawings, A represents a boiler, and B a tube inserted in the head thereof, and provided with a suitable stuffing-box, B, through which tube and stufling-box B B the pipe O is introduced horizontally into the boiler A, said pipe 0 having its inner end bent downward at right angles, as shown at a, and perpendicular to the axis of said boiler A, so as to reach nearly-say to within about threequarters of an inch thereof-to the bottom of said boiler A; and around this lower end of said pipe 0 is a flange, 0, about eight inches in diameter, and conforming with the curve of the boiler-bottom, while on its outer end said pipe 0 is provided with a blow-off cock, D, and with a cross-handle, E, by means of which handle E said pipe 0 may be moved inward and outward through the tube and stuffing-box B B, so that its lower end shall be moved from one end to the other of the boiler A, and can also be rotated to some extent upward on either side of the longitudinal center of the boilerbottom.

In order to remove the sediment from the boiler A when the latter is in operation, the blow-off cock D is opened and the pipe O moved inward and outward by means of the handle E. The steam-pressure in the boiler will then force the sediment from the bottom of the boiler up through the pipe O and out of the blow-off cock D. VVereit not for the flange O, the pressure of the steam in the boiler A. would force the water therein downward in the direction of the arrows, Fig. 1, and out of the pipe 0, without thoroughly disturbing the sediment or scale on the bottom of said boiler A 5 but the flange 0 causes the current of water to be forced between it and the boiler-bot tom, as indicated by the arrows, Fig. 2, whereby all the sediment and scale lying in the said boiler-bottom must thereby be removed.

The pipe O is preferably entered above the water-line of the boiler A, so that it shall not become coated with scale and sediment, which would interfere with its being moved back and forth, and, being entered above the furnacewall, can readily be applied to any boiler.

I-am aware that a sliding pipe with a blowofit' cock and in a perforated tube arranged along the bottom of boiler is not new; but

What I claim is- The combination, with a boiler, of the tube B, inserted in the head above the water-level, the stuffing-box B, and the movable tube 0 passing through tube B, said tube 0 having a right-angled end extending nearly to the bottom of boiler, and provided with a blow-off cock, D, as shown and described.

ABRAHAM JOHNSON.