US153441A - Improvement in boiler-flue cleaners - Google Patents

Improvement in boiler-flue cleaners Download PDF

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Publication number
US153441A
US153441A US153441DA US153441A US 153441 A US153441 A US 153441A US 153441D A US153441D A US 153441DA US 153441 A US153441 A US 153441A
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boiler
bars
improvement
flue
scraper
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets

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  • This invention relates to a scraper for oleaning boiler-dues; and consists of four spring'- bars, having each a scraper attached, said bars being united at the butt to a head, through which a rod passes, having a screwthread cut on it for that purpose, and having a nut or head on the end between the bars, which is designed for expanding the bars, so that they may tit the inside of a flue tightly, or readily adapt the Scrapers to the unevenness or slight variations there may be therein.
  • a A represent four Eat bars of steel united to a head, B, with their flat sides outward, but which are at a point about two-thirds their length from the butt, twisted one-quarter-way round, so as t0 bring their edges to the side, and the outer edges of the said bars are curved inward to the inside edges, thus making the points in a smaller circumference.
  • a quarter-disk scraper, C lapping each otherat the intersecting line, so that they maintain a complete circumference at all times.
  • a rod, D Through the head B is passed a rod, D, it having a screw-thread c ut on it for the nutsE E, which secure the rod in place in the head.
  • a washer, F Upon the inner end of the rod D is placed a washer, F, held in place by two nuts, G G.
  • the washer is for expanding the bars, and thus adjusting the scrapers to fit snugly the insides otvarious-sized flues, the spring of the bars also causing the scrap ers to bear harder on the inside.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Description

UNITED STATES PATENT OFFICE;
T HENRY'LEHMANN, OF CLEVELAND, OHIO.
IMPROVEMENT IN BOILER-FLUE CLEANERS.
Specification forming part of Letters Patent No. 153,441, dated July 28, 1874; application led June 26,1874.
To all whom it may concern:
Be it known that I, HENRY LEHMANN, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented an Improved Boiler-Flue Cleaner, of which the following is a specification:
This invention relates to a scraper for oleaning boiler-dues; and consists of four spring'- bars, having each a scraper attached, said bars being united at the butt to a head, through which a rod passes, having a screwthread cut on it for that purpose, and having a nut or head on the end between the bars, which is designed for expanding the bars, so that they may tit the inside of a flue tightly, or readily adapt the Scrapers to the unevenness or slight variations there may be therein.
To enable others to fully understand my invention, I will proceed to describe the same by the aid of the accompanying drawing,'in which- Figure 1 is a side elevation, and Fig. 2 is an y end view, of my aforesaid flue scraper.
A A represent four Eat bars of steel united to a head, B, with their flat sides outward, but which are at a point about two-thirds their length from the butt, twisted one-quarter-way round, so as t0 bring their edges to the side, and the outer edges of the said bars are curved inward to the inside edges, thus making the points in a smaller circumference. To each of the bars A is attached a quarter-disk scraper, C, lapping each otherat the intersecting line, so that they maintain a complete circumference at all times. Through the head B is passed a rod, D, it having a screw-thread c ut on it for the nutsE E, which secure the rod in place in the head. Upon the inner end of the rod D is placed a washer, F, held in place by two nuts, G G. The washer is for expanding the bars, and thus adjusting the scrapers to fit snugly the insides otvarious-sized flues, the spring of the bars also causing the scrap ers to bear harder on the inside.
This scraper has proved, after about a years use, to be perfect in its work, and accomplishes what no other line-scraper has done.
Having described my invention, l claim- Bars A A, united, to the head B, and having the scraper C C, the rod D, nuts E E, washer F, and nuts G G, all combined, as shown and described, to compose a flue-scraper, for the purpose set forth.
HENRY LEHMANN.
lTtnessesz GEO. W. Tinnrr'rs, W. S. KENNISH.
US153441D Improvement in boiler-flue cleaners Expired - Lifetime US153441A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050282275A1 (en) * 1999-03-10 2005-12-22 University Of Pittsburgh Of The Commonwealth System Of Higher Education Adipose-derived stem cells and lattices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050282275A1 (en) * 1999-03-10 2005-12-22 University Of Pittsburgh Of The Commonwealth System Of Higher Education Adipose-derived stem cells and lattices

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