Improvements in the Manufacture of Tubes, Sheaths, Cylindrical Coverings and the like from Paper, Parchment and Textile or other Similar or Suitable Flexible Fabrics or Materials.
Year: 1897

page_text: Date of Application, 30th Nov., 1897-Accepted, 5th Mar., 1898
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Tubes, Sheaths, Cylindrical
Coverings and the like from Paper, Parchment and Textile or
other Similar or Suitable Flexible Fabrics or Materials.
I, GUSTAV HEINRICH SACHSENRODER, Paper and Paper-parchment Manufacturer,
of Barmen-Unterbarmen, in the Empire of Germany, 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:-
My said invention relates to an improved method of manufacturing tubes,
sheathings, cylindrical coverings and the like of any desired circumference, length
and strength or thickness from strips or lengths of paper, parchment, cloth or
other suitable flexible fabric or materials.
The improved mode of manufacture will be apparent from the following
description and annexed drawings.
Fig. 1 shows in end view a number of strips a of paper, parchment or other
suitable material cemented together in such a manner as to further the object of
my invention.
Fig. 2 shows in plan the said cemented series of strips a and laid upon them I
also show the mandrel b around which the said cemented series of strips are rolled
into the form of tubes or hollow cylinders.
Fig. 3 illustrates the manner of forming the said cemented strips upon the
mandrel b so as to form a tube.
Fig. 4 shows a completed tube.
In the first place to form the body or wall of the tube, I take a number of
strips a a a &c. of paper, parchment or other suitable fabric or material, the strips
being of sufficient breadth to form the circumference of the completed tube. The
thickness of the wall of the tube is in accordance with the number of strips
cemented together.
The strips 2 may of course be of any convenient or desired length. In cement-
ing the strips a together I allow each successive strip to project on one side, a little
beyond the strip immediately beneath it and to retire a corresponding distance on
the other side, the successive strips thus lying in échelon and each edge of the
cemented series presenting the stepped appearance shown in Fig. 1. To form a
tube or hollow cylinder from this cemented series of strips, I bend the series around
the central mandrel b and cement the two meeting stepped edges as shown at
Fig. 3.
The complete tube appears at Fig. 4 in which fig. the abutting and overlapping
stepped edges are clearly shown. The rolling of the cemented series of strips into
the form of a tube upon a mandrel is effected by any suitable mechanism. For
example a guiding roller may be used to bend the strips round the mandrel and
pressing rollers to compress the meeting cemented stepped edges or the strips might
be drawn or forced through a die, cement being supplied to the stepped edges as
the drawing proceeds. I might also produce tubes of the described nature practi-
cally continuously from continuous rolls of strips by apparatus which will feed
017

page_text: the strips, paste them together and form them into tubes in an uninterrupted
operation.
The practically endless tubing thus produced might be cut off to the desired
lengths in the course of manufacture.
Tubing produced according to my invention can be made of unvarying exactness
as regards diameter and thickness of the sides or walls. The joint is also practically
undistinguishable, in which respect it differs from sewu butts for example.
Therefore when used for certain purposes such for instance as the coverings of
drawing rollers for textile machinery, such coverings or sheaths would require the
careful trueing and grinding to which leather sheaths are subjected.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is:
The manufacture of tubing from strips of paper, parchment, textile or other
suitably flexible fabrics or materials cemented together in series and in échelon so
as to present stepped edges the said cemented stepped edged series of strips being
bent or rolled upon a mandrel or drawn through a die or otherwise suitably formed
into tubing, roller coverings, sheathings or the like substantially as described and
as illustrated.
Dated this 29th day of November 1897.
For the Applicant,
E. K. DUTTON & Co.,
5, John Dalton Street, Manchester, Chartered Patent Agents.