Improved Apparatus for Cleaning Boiler Flues.
Year: 1891

page_text: Date of Application, 3rd Jan., 1891
Complete Specification Left, 5th Oct., 1891-Accepted, 12th Dec., 1891
PROVISIONAL SPECIFICATION.
Improved Apparatus for Cleaning Boiler Flues.
I, JOHN PITT BAYLY, of 18 Fulham Place, Paddington, in the County of
London, Patent Agent, do hereby declare the nature of this invention (a com-
munication to me from abroad by Gabriel Smith, of Towanda, Pennsylvania, U.Ş.A.
Inventor,) to be as follows:-
This invention relates to a new and improved apparatus for cleaning boiler
flues, and which is more especially applicable for cleaning the flues of vertical
boilers.
A
The apparatus consists of a rod of bar iron of convenient length, and forged at
its end with a handle. Its opposite end is screw-threaded and engages the
internal thread in an aperture formed at right angles in a suitable sleeve.
rod of metal adapted to carry a brush or scraper at its upper end is adapted
to slide vertically within this sleeve at, right angles to the rod or handle afore-
mentioned.
By this construction the vertical rod carrying a cleaner can be adjusted to any
length, and secured in any position by turning the handle whose point acts as a set
screw in the sleeve.
Dated this 21st day of Dasamban 1400
J. P. BAYLY,
Applicant.
COMPLETE SPECIFICATION.
Improved Apparatus for Cleaning Boiler Flues.
I, JOHN PITT BAYLY, of 18 Fulham Place, Paddington, in the County of
London, Patent Agent, do hereby declare the nature of this invention (a com-
munication to me from abroad by Gabriel Smith, of Towanda, Pennsylvania, U.S.A.
Inventor,) and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :—
This invention relates to certain new and useful improvements in flue-cleaners
for steam-boilers, its object being to provide an implement of this character for
cleaning the flues in upright boilers without the necessity of extinguishing the
fire.
A further object is to provide a cleaner which may be inserted into the
flues from the bottom, thereby rendering it unnecessary to remove the bonnet
from the boiler.
The invention will first be described in connection with the accompanying
drawings, and then pointed out in the claims.
Fig. 1 is a side elevation of my invention with parts broken away, and Fig. 2 is
a like view showing a modified form.
Referring to the details of the drawings, the vertical or cleaner rod A is
provided on its upper end with a sleeve a, into which is screwed or otherwise
secured any form of scraper B. The rod A may be formed of a section of pipe or
a round or square bar, as desired, and of sufficient length to enable the scraper B
to be pushed entirely through the flue to be cleaned. A T-piece or collar C,
adapted to slide upon rod A, is provided with a screw-threaded opening c, into
which screws one end of the operating-rod D, having a handle d on its free end. It
will be seen by reference to Fig. 1 that a slight turn of the operating-rod D by
means of the handle d will loosen the T-piece C upon rod A, so as to enable it to
be moved to any desired position upon the rod, when a slight reverse turn of the

page_text: operating-rod will cause the end of the same to impinge upon the rod A, so as to
securely fasten the Ț in the position desired and thus lengthen or shorten the
distance between the T and scraper B, to adjust its length to suit the conditions or
exigencies of the case.
In Fig. 2 is shown a modification of the manner of securing the T-piece to the
cleaner rod. A tube E, of the length desired for the operating rod, is secured to
the T-piece C, and registers with the opening c, its free end being closed by a
cape, screwed thereon and of any desired form. This tube is provided on its under
side and near its outer end with a slot, the purpose of which will hereinafter
appear. The operating-rod D, in this form, is smooth on the end entering the
opening in the T-piece, and is provided on its other end with a washer g, against.
which bears one end of a coil-spring, interposed between the washer and the cap
of the tube E. It will be seen by this construction that the spring will cause the
operating-rod D to impinge upon the scraper-rod A, and thus hold the T-piece in
any desired position thereon. The spring may be strong enough to insure the
proper contact between the rod A. and the end of the operating-rod D; but under
such construction it is preferred to form the scraper-rod with perforations i at
intervals throughout its length to receive the end of the operating-rod D.
A short
rod or trigger, secured to the operating-rod, projects downward through the
slot in the tube E, for the purpose of drawing back the operating-rod against
the pressure of spring and away from engagement with the scraper-rod, thus
loosening the T-piece thereon and permitting the adjustment of parts previously
described.
h
The operation of my invention is as follows:-
The implement is placed within the furnace, the operating-rod passing out
through the door. The scraper is now inserted within the bottom of the vertical
flue, the T-piece being on the scraper-rod near the scraper. By an upward move-
ment by the operator upon the operating-rod the scraper is forced into the flue as
far as the position of the T will permit, when the latter is loosened, as described,
and lowered a short distance, then tightened and raised again, as in the first
instance. This operation is repeated until the scraper has been forced entirely
through the flue. The operation is now reversed, and the scraper removed to be
placed within the next flue.
It will be apparent that the scraper can be inserted and operated at any point
desired within the flue, and can be readily adjusted up or down by simply
loosening the connection between the operating-rod and the scraper-rod, and that
such adjustment can be effected after inserting the scraper in the flue and without
removing it therefrom.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I dec are that what
I claim is:
scraper or
1. A boiler-flue cleaner comprising a slide or sleeve, a rod to carry
cleaner, said rod and sleeve being adjustable one upon the other, and means for
securing said parts in their relative adjustment without removal of the cleaner from
the flue, substantially as and for the purposes set forth.
2. A boiler-flue cleaner comprising a slide or sleeve, a rod to carry a cleaner or
scraper, said rod and sleeve being adjustable one upon the other, and a longi
tudinally-movable rod passing through said sleeve at an angle to and engaging said
cleaner rod, whereby the length of said cleaner-rod between its cleaner and said
sleeve may be varied at will by movement of the rod engaging therewith, and
locked in position by said rod, substantially as and for the purposes set forth.
1
J. P. BAYLY,
Applicant.