Improvements in Brushes or Scrapers for Tube Cleaning and other purposes.
Year: 1898

page_text: Date of Application, 14th Apr., 1898
Complete Specification Left, 16th Jan., 1899-Accepted, 25th Feb., 1899
PROVISIONAL SPECIFICATION.
Improvements in Brushes or Scrapers for Tube Cleaning and other
purposes.
We, WILLIE HOLMES, of 112, Helmsley Road, in the City and County of New-
castle-on-Tyne, Wire-worker, and FREDRICK SAMUEL COOPER, of 32, Booth Street,
Felling-on-Tyne, in the County of Durham, Wire-worker, do hereby declare the
nature of this invention to be as follows:-
-
Our invention relates to brushes or scrapers of wire or the like and has for its
object to provide a brush or scraper especially applicable for cleaning the interior
of boiler tubes and the like but also applicable for other purposes.
According to our invention we form the brush or scraper of one or a number of
spiral coils of wire or other suitable material threaded upon or having a wire or
wire strand or strands passed through the coil or coils, two or more wires or wire
strands one or more provided with a coil being then twisted together to form the
brush or scraper.
The coils of wire threaded upon the strands are varied in size and diameter
according to the flexibility and size of brush required, the larger the coils in com-
parison with the supporting strand the greater the flexibility. The coils are left
uncut so as to form a working surface of transversely disposed, more or less circular
pieces of wire alternately disposed or sinuously or otherwise arranged according
to the nature of the twisting of the strands and the number and kind of coils and
supporting wires or strands employed.
It will be obvious that the coils forming the brush or scraper or the wires from
which they are made may be square, polygonal, corrugated or other form if desired
and the coils may be of closely wound or extenuated form according to the nature of
the working surface required.
Brushes manufactured as above will be especially applicable for cleaning
and scraping boiler tubes and other similar purposes, being of greater strength and
following the form of the tube more closely, whether of straight or curved form, and
working with greater efficiency than brushes or scrapers, having a working surface
of radially disposed wires.
When used for tube cleaning we provide or may provide a cap, guide plate or
the like of coned or other convenient form adapted to be secured to one or each end
of the brush or scraper and form a support and guide for the same when in use.
These caps or guide plates are or may be formed of or secured to a disc or plate of
circular or other form twisted into the strands or otherwise secured thereto.
Dated this 13th day of April 1898.

page_text: COMPLETE SPECIFICATION.
Improvements in Brushes or Scrapers for Tube Cleaning and other
purposes.
We, WILLIE HOLMES, of 112, Helmsley Road, in the City and County of New-
castle-on-Tyne, Wire-worker, and FREDRICK SAMUEL COOPER, of 32, Booth Street,
Felling-on-Tyne, in the County of Durham, Wire-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:--
Our invention relates to brushes or scrapers of wire or the like and has for its
object to provide a brush or scraper especially applicable for cleaning the interior
of boiler tubes and the like and also applicable for other purposes.
According to our invention we form the brush or scraper of a number of rings
or one or a number of spiral coils of wire or other suitable material threaded upon
or having a wire or wire strand or strands passed through them, two or more wires
or wire strands, one or more provided with rings or a coil or coils being then twisted
together to form the brush or scraper.
In the accompanying drawings we have shown three different forms of scraper.
Referring to Sheet 1, Fig. 1 is a longitudinal view of a scraper formed of a
single coil. Fig. 2 is an end view of same. Fig. 3 is a view showing the first
stage of manufacture and Fig. 4 is an end view of Fig. 3. On Sheet 2, Figs. 5,
6, 7 and 8 are respectively similar views to Figs. 1, 2, 3 and 4 of a scraper made
from two coils. On Sheet 3, Figs. 9, 10, 11 and 12 are respectively similar views
to those on the other sheets showing a scraper made from 4 coils and 4 strands.
Referring to Sheet 1, a is the spiral coil of wire or other suitable material which
is first threaded upon or has a wire or wire strand b passed through same as in
Figs. 3 and 4, the strand 6 is then twisted in the known manner together with
another strand 6' (not provided with a coil) and a brush or scraper such as is shown
in Figs. 1 and 2 is produced. The coils a are varied in size and diameter accord-
ing to the flexibility and size of brush required, the larger the coils in comparison
with the supporting strand the greater the flexibility.
In the scraper shown in Sheet 2, two coils a¹, a² are employed one on each sup-
porting strand 61, 62, in Fig. 5 for clearness one coil is shown in black and the other
in double lines.
In the construction shown in Sheet 3 four coils a¹, a², a³, a' are employed, each
mounted upon two of the strands 61, 62, 63, 6 (see Figure 12), these four strands
are twisted together as before forming a scraper as shown in Figs. 9 and 10.
The coils or rings when such are used are left uncut so as to form a working
surface w of transversely disposed more or less circular pieces of wire. The dis- 3
position of the working surfaces w varies according to the nature of the twisting
of the strands b, b and the number and kind of coils and strands employed.
It may sometimes be found necessary when the scrapers are used for tube clean-
ing to provide a cap or guide plate at either end of the scraper, two forms of such
are shown in the drawings at c, c¹, the one c in Fig. 1 is in the form of a solid cone 4
suitably fixed to the termination of the scraper to support and guide same in use.
c, Fig. 5 is a flat guide plate with the strands b, b¹ passed through a central boss c²,
in this case a plate or washer c³ is or may be provided.
It will be obvious that the coils, or rings forming the brush or scraper or the
wires from which they are made may be of square, polygonal, corrugated or other 4
form it desired and the coils may be of closely wound or extenuated form or the
rings spaced apart according to the nature of the working surface required.
Brushes manufactured as above will be especially applicable for cleaning and

page_text: scraping boiler tubes and other similar purposes being of greater strength and
following the form of the tube more closely whether of straight or curved form and
working with greater efficiency than brushes or scrapers having a working surface
of radially disposed wires.
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-A brush or scraper for tube cleaning and other purposes having a working
surface of more or less transversely disposed circular or coiled pieces of wire or
other suitable material substantially as set forth.
2-A brush or scraper for tube cleaning and other purposes formed of one or
more spiral coils of wire or other suitable material threaded upon or having a wire
or wire strand passed through same, two or more of which strands one or more pro-
vided with a coil or coils being twisted together to form the brush or scraper the
coils being left uncut so as to provide more or less transversely disposed working
surfaces substantially as described.
3-The several forms of improved brush or scraper substantially as herein
described and with reference to the accompanying drawings.
Dated this 14th day of January 1800
For the Applicants,
. PRYOR & HARVEY,
Agents, 3, St. Nicholas' Buildings, Newcastle-on-Tyne.