Improvements in the Manufacture of Tubes, Barrels, or Vessels mainly or wholly of Paper or like Pulp, and in Machinery or Apparatus employed therein.
Year: 1891

page_text: Date of Application, 20th Feb., 1891
Complete Specification Left, 29th Oct., 1891-Accepted, 5th Dec., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Tubes, Barrels, or Vessels
mainly or wholly of Paper or like Pulp, and in Machinery or
Apparatus employed therein.
I, JAMES RAPER THAME of Two Waters Mill, Boxmoor, in the County of
Herts, Engineer; do hereby declare the nature of this invention to be as follows:-
This invention is designed to facilitate and improve the manufacture of tubes of
paper or like pulp or tubes of such pulp combined with other materials and also to
facilitate the closing of such tubes, cylinders, barrels or vessels by the application
of ends thereto and the fixing thereof.
Imanufacture seamless pulp tubes by rolling up continuously superposed and
amalgamated wet paper. or like pulp, in contradistinction to superposed wrappings
of a continuous sheet of half-stuff or paper which does not in fact thoroughly
ainalgainate, around a roll or rolls and allowing same to be rotated on the roll'or
tolls until the pulp tube so formed begins to sag from, droop or leave the roll, or
by applying extra pressure (by hydraulic or other equivalent ineans) at a suitable
point or towards or at the finish to cause by the pressure on the surface of the tube
of pulp'an increase of its diameter releasing the tube so that it can then be taken
off the roll in a suitable conveyor which may be a flexible metal felt covered
apron or sheet.
Or the foregoing operation may be effected by coiling up the web of pulp
amalgamating it on a roll or rolls and then compressing and releasing it by pressure
applied by means of rolls weighted and acting on the amalgamated pulp tube whilst
on its forming cylinder.
Also manufacturing seamless tubes composed of a web or webs of paper or like
pulp amalgamated and superposed and compounded with a web or webs of canvas,
wire netting or gauze or other suitable fabric or material the amalgamation and
compounding being effected on collapsing cylinders such as described in the
Specification of Patent No: 346 dated 9th January 1888 granted to me James
Raper Thame or on such rolls as above described; or if desired to be somewhat
bilged they may be made on apparatus such as described in an application for
Patent No. 4906 dated 26th March 1890 by Henry McKeone, Jaines Raper Thame
and Herbert Sanguinetti.
The amalgamated paper or like pulp tubes so made may have a groove or
grooves formed around them so that such grooves may serve to liold the ends in
place and so that said ends may be put in dry or otherwise while the tubes are wet
or partially wet or otherwise and said grooves may be produced by pressing the
shells or ends of same in moulds or boxes or by calendering or compressing them
between male and female die rolls or calenders.
These improvements are designed in part particularly to develop and apply the
invention set forth in the Specification of Patent No. 346 hereinbefore mentioned.
Dated the 20th day of February 1891.
WM. DIUURED & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in the Manufacture of Tubes, Barrels. or Vessels
mainly or wholly of Paper or like Pulp, and in Machinery or
Apparatus employed therein,
I JAMES RAPEr Thame of Two Waters Mill, Boxmoor, in the County of
Herts, Engineer, 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 :-
This invention is designed to facilitate and improve the manufacture of tubes or
like pulp or tubes of such pulp combined with other materials and also to facilitate
the closing of such tubes, cylinders, barrels or vessels by the application of ends
thereto and the fixing thereof.
I manufacture seamless pulp tubes by rolling up continuously superposed and
amalgamated wet paper or like pulp in contradistinction to superposed wrappings
of a continuous sheet of half stuff or paper, which does not in fact thoroughly
amalgamate around a roll or rolls, and allowing same to be rotated on the roll or
rolls until the pulp tube so formed begins to sag from, droop or leave the roll, or
by applying extra pressure (by hydraulic or other equivalent means), at a suitable
point or towards or at the finish, to cause by the pressure on the surface of the tube
of pulp an increase of its diameter releasing the tube so that it can then be taken
off the roll in a suitable conveyor which may be a flexible metal felt covered apron
or sheet.
Or the foregoing operation may be effected by coiling up the web of pulp,
amalgamating it on a roll or rolls and then compressing and releasing it by
pressure, applied by means of rolls weighted and acting on the amalgamated pulp
tube whilst on its forming cylinder.
Also manufacturing seamless tubes composed of a web or webs of paper or like
pulp amalgamated and superposed and compounded with a web or webs of canvas,
wire netting, or gauze, or other suitable fabric or material the amalgamation and
compounding being effected on collapsing cylinders, such as described in the
Specification of Patent No. 346 dated 9th January 1888, granted to me James
Raper Thame, or on such rolls as above described, or if desired to be somewhat
bilged they may be made on apparatus such as described in an application for
Patent No. 4906 dated 26th March 1890 by Henry McKeone, James Raper Thame
and Herbert Sanguinetti.
The amalgamated paper or like pulp tubes so made may have a groove or
grooves formed around them so that the grooves may serve to hold the ends' in
place and so that said ends may be put in dry or otherwise while the tubes are wet
or partially wet or otherwise and said grooves may be produced by pressing the
shells or ends of same in moulds or boxes or by calendering or compressing them
between male and female die rolls or calenders by means of apparatus such as
shewn and described particularly with reference to Figs. 21 and 22 in the Speci-
fication No. 346 before referred to, with the exception that the production of an
internal groove the tool there described would be applied internally.
These improvements are designed in part particularly to develope and apply
the invention set forth in the Specification of Patent No. 346 hereinbefore
mentioned.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is:
1. The hereinbefore described method of releasing cylinders made from pulp
whilst in a wet condition from the forming rolls by increased or additional means of
pressure exerted on those rolls as soon as the desired quantity of such pulp has
been accumulated thereon.

page_text: 2. The method of manufacturing tubes or sheets made from tubes of amalgamated
wire netting, gauze or other suitable material and wet paper or like pulp as set
forth.
3-The hereinbefore described method of treating cylinders of amalgamated
superposed wet pulp in order to their manufacture of barrels or like closable
vessels..
Dated the 28th dow of October 1801
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.