An Improved Apparatus for Cleaning or Scraping the Interiors of Pipes or Tubes, particularly applicable to the Ascension Pipes of Gas Retorts.
Year: 1899

page_text: Date of Application, 9th June, 1899
Complete Specification Left, 9th Mar., 1900-Accepted, 14th Apr., 1900
PROVISIONAL SPECIFICATION.
An Improved Apparatus for Cleaning or Scraping the Interiors of
Pipes or Tubes, particularly applicable to the Ascension Pipes of
Gas Retorts.
We, CHARLES ELLIOTT, of 2, Hough Lane, Leyland, in the County of Lancaster,
Gas Works Manager, GEORGE DAMP, of Water Street Forge, Leyland, aforesaid,
Blacksmith, and JAMES MCDADE, of 23, Herbert Street, Leyland, aforesaid, Sheet
Metal Worker, do hereby declare the nature of this invention to be as follows:-
1
Our said invention relates to an improved apparatus for cleaning and scraping
the interiors of retort ascension pipes, but which is also applicable in all cases
where it is necessary or desirable to clean the interior of pipes without removing
them from their position, such as economiser pipes or steam generators.
In carrying our invention into effect we provide the interior of each pipe with
a revolvable cutter or scraping appliance mounted on a shaft which passes through
a packed gland in the end of the pipe. We provide means to rotate the cutters
and traverse the same within the pipes so that all scale and other accumulations
are effectively and readily removed. To effect this we secure all the cutter shafts
in bearings in a bracket and drive the shafts by suitable gearing. The gearing
may be operated manually or by power. The bracket carrying the cutter shafts
and gearing therefor is traversed vertically by means of screwed shafts operated
by worm gearing or any other suitable gearing may be employed to effect the
vertical traverse of the shaft. If desired the revolving cutters may be arranged
to act only in one direction of traverse and means be provided for a quick return
stroke.
By means of our invention we are enabled to effectively clean and scrape the
Interior of pipes with a great saving in time and labour over the methods now
employed.
An Improved Apparatus for Cleaning or Scraping the Interiors of
Pipes or Tubes, particularly applicable to the Ascension Pipes of
Gas Retorts.
We, CHARLES ELLIOTT, of 2, Hough Lane. Leyland, in the County of Lancaster,
Gas Works Manager, GEORGE DAMP, of Water Street Forge, Leyland, aforesaid,

page_text: Blacksmith, and JAMES MCDADE, of 23, Herbert Street, Leyland, aforesaid, Sheet
Metal Worker, do hereby declare the nature of this invention and in what manner
the same is to be performed to be particularly described and ascertained in and
by the following statement and accompanying drawings.
Our said invention relates to an improved apparatus for cleaning and scraping
the interiors of retort ascension pipes, but which is also applicable in all cases
where it is necessary or desirable to clean the interior of pipes without removing
them from their position, such as economiser pipes of steam generators.
The accompanying sheet of drawings illustrates our invention.
Fig. 1 shows in elevation our invention applied to a series of pipes which are
broken in length.
Fig. 2 is an end view thereof.
Fig. 3 is a detail view.
In carrying our invention into effect we provide the interior of each pipe
with a revolvable cutter or scraping appliance a mounted on a shaft which
passes through a packed gland in the end of the pipe d. We provide means to
rotate the cutters and traverse the same within the pipes d so that all scale and
other accumulations are effectively and readily removed. To effect this we secure
the cutter shafts in bearings in brackets e supported by the angle irons el which
are carried by end brackets, and drive the shafts by suitable gearing.
The cutter shafts are provided with bevel wheels f gearing with bevel
pinions secured to a horizontal shaft supported in bearings provided by the
brackets i.
An end view of the bevel gearing and supporting brackets for the horizontal
shaft is shown in Fig. 3. Motion is imparted to the horizontal shaft has
follows. A pinion is slidably mounted upon a vertical shaft k which is revolved
manually by means of a hand wheel or by power.
The pinion meshes with a pinion / carried by the bracket, which pinion
is formed in one with a bevel wheel gearing with the bevel pinion g on the
horizontal shaft h.
The pinion is secured to the bracket by means of a cap m bolted to the
bracket. Instead of the pinions ja worm and worm wheel may be employed.
The bracket at the left hand of Fig. 1 also carries anti friction bowls » hearing
against guides oo which are cut away to the left of Fig. 1 so as not to obscure the
parts.
To traverse the cutters a vertically I provide each end of the apparatus with a
screwed shaft p the bevel wheels being formed as nuts upon the shafts. There-
fore as the bevel wheels are rotated to revolve the cutters the bevel wheels and
brackets together with the cutter shafts are raised vertically so as to traverse
the cutters within the pipes.
If desired the revolving cutters may be arranged to act only in one direction
of traverse and means be provided for a quick return stroke such as by clutches
or any other well known mechanical device.
By means of our invention we are enabled to effectively clean and scrape the
interior of pipes with a great saving in time and labour over the methods now
employed.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:
1) As means for cleaning and scraping the interiors of retort ascension and
other pipes, providing the interior of each pipe with a cutter mounted on a shaft.
together with means for rotating the cutter shafts and traversing the same
vertically substantially as described and shown,

page_text: 2) The general arrangement construction and combination of parts comprising
the improved apparatus for cleaning and scraping the interiors of retort ascension
and other pipes substantially as described and illustrated.
Dated this 8th day of March 1500.
For the Applicants,
E. K. DUTTON & Co.,
Chartered Patent Agents, 5, John Dalton Street, Manchester.