US156543A - Improvement in flue-cleaners - Google Patents

Description

, A. CRDSBY.

Flue-Cleaners.

Patented Nov. 3,1874. 7

Vim 156,543.

Inventor Witnesss v THE GRAPHIC coyudro-Lnmasan PARK PLACEJLY- UNITED STATES PATEN ADDISON CROSBY, OF NEW YORK, N. Y.

IMPROVEMENT IN FLUE-CLEANERS.

Specification forming part of Letters Patent No. 156,543, dated November 3, 1874; application filed September 22. 1874.

To all whom it may concern:

Be it known that I, ADDISON ORosBY, of New York city, N. 31., have invented certain new and useful Improvements in Flue-Gleam ers; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings making a part of this specification.

This invention relates to that class of fluecleaners (for cleaning the fire-fines of boilers) in which a jet of steam is thrown into a movable pipe to be applied to each flue, so as to create a vacuum-draft, which draws out the soot from the open flue, and may be considered as an improvement on the flue-cleaner described in N. W. Wheelers patent of 1865.

In the drawings similar letters refer to like parts.

Figure 1 is a side elevation; Fig. 2, a vertical section, showing the instrument applied to a flue, but not in action. Figs. 3, 4, 5, 6,.and 7 are details.

B represents a section of a boiler, and F a section of a flue. O is a double reducing-nozzle of cast metal. The mouth m, which is applied to and over the flue to be cleaned, is faced with a rubber ring, a, and is of the full diameter of the fluesay, four inches. The dischargemouth (1 is about two inches diameter, being a reduction as one to four from the diameter of the fluemouth m. This reduction greatly increases the power of the draft." I is a reducing injector-pipe, being about three-quarters of an inch in diameter at its butt, where it is screwed into the steam-mouth s of the redneingnozzle, and being about half an inch at its nozzle, which discharges its jet of steam about two inches within the discharge-mouth d. I prefer that this should be a reducing-pipe, but the reduction is not indispensable. E is a pipe some two or three feet long and about three-quarters of an inch diameter, and is screwed to the nozzle at its mouth vs. This pipe is surrounded by a wooden jacket, 0, so that it may be used as a handle in applying the instrument. W is an angle valve-seat screwed to the other end of pipe E, and is provided with a spring-valve, V, which controls the admission of steam to pipe E. N is a screwnozzle secured to seat W, for the attachment of the three-quarter-inch flexible steam-hose S. H is a stirrup-handle attached to seat W for convenience in applying the instrument. G is a gripe-lever, pivoted at one end to stirrup H and in the middle to the valve-rod r, so that the hand of the operator, whil'e grasping handle H, may also gripe lever G, and thus admit the steam.

The operation is as follows: Pipe S is attached to a steam-nozzle of the boiler. The, mouth at is then applied over the fine to be cleaned, and pressed against it so as to make a joint. By griping lever G the valve V is opened, and a jet of steam is admitted which rushes through pipe E and injector I, into and out of dischargemouth 01, thereby creating a vacuum, (the power of which is intensified by reduction,) which powerfully draws a current of air through the open flue, thus clearing out its soot and other injurious contents.

The chief feature of my invention consists in having the discharge-mouth d of a muchreduced area, as compared with the fluemouth.

Instead of taking in the steam, as shown, at an angle to the line of discharge, it is possible to take it in a direct line from the boiler at point marked :10, and the same result will ensue.

I claim 1. The combination of the stirrupvalve G V, steam-jet I, bent nozzle 0, constructed and operating substantially as set forth.

2. The combination of stirrup H, lever G, valve V, valve-seat W, rod 4", and spring 0, substantiallyas set forth.

3. The valve-seat W, in combination with stirrup H and pipe E, substantially as set forth.

Witness my hand this 29th day of July, 1874..

ADDISON CROSBY.

Images