Apparatus for Coiling Paper, Linen, and other Materials into Tubular Form.
Year: 1891

page_text: Date of Application, 22nd Sept., 1891
Complete Specification Left, 19th July, 1892-Accepted, 2uth Aug., 1892
PROVISIONAL SPECIFICATION.
Communicated from abroad by LUDWIG GROTE, Manager of the Industriewerke
Actien Gesellschaft, Landaberg-on-Lech, Bavaria.]
Apparatus for Coiling Paper, Linen, and other Materials into
Tubular Form.
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I, GUSTAV ADOLPH WERNER, VOGELER, 17 Philpot Lane, London, E.C.
Commission Agent, do hereby declare the nature of this invention to be,
follows:-
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a's
This invention relates to a construction of mandril apparatus on to which paper,
linen and other materials, either coated with cement or otherwise, is coiled in
successive layers for the production of tubes of such materials, the mandril
apparatus being so arranged and operated that after the said fabric has been coiled
tightly thereon, it can nevertheless be easily removed therefrom.
For this purpose. a cylindrical mandril having a trunnion at each end, is
introduced into a tube-like covering formed of a helically wound strip of metal or
silk or other cord, with spaces left between the convolutions of the strip, the core
being made to fit the interior surface of the covering.
Upon such covering is now wound the sheet of fabric for forming the tube, in
any desired number of layers, which may be made to adhere to each other either
by the use of adhesive material or otherwise. The tube having been formed in
this manner,
the mandril is removed from within the helical covering, which can be
readily effected by turning the same round, whereby it will screw out of the said
covering.
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A mandril of smaller diameter is now inserted into the helical covering, one end
of the strip or cord forming the latter being attached to a sleeve fixed on the
projecting end of the mandril, while the other end of the strip is connected to a
sleeve fitted loose on the other projecting end of the mandril. The tube formed of
coiled material being held stationary, as is also the end of the mandril to which
the one end of the helical covering is connected, the sleeve to which the other end
is attached is rotated, whereby the convolutions of the helical covering will be
consecutively coiled up tighter so as to become removed from the inner surface of
the outer tube and to be applied to the surface of the mandril.
The rotation of the sleeve having been continued until all the convolutions of the
helical covering have been so retracted, the formed tube can now be readily with
drawn therefrom, and upon now releasing the ends of the helical covering this will
spring open again to its original size, allowing the smaller mandril to be removed
and the larger one to be re-introduced.
Dated this 22nd day of September 1801
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Apparatus for Coiling Paper, Linen, and other Materials into.
Tubular Form.
I, GUSTAV ADOLPH WERNER VOCELER, 17 Philpot Lane, London, E.C.
Commission Agent, 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 relates to a construction of mandril apparatus on to which paper,

page_text: linen or other material, either coated with cement or otherwise, is coiled in
successive layers for the production of tubes of such materials, the mandril
apparatus being so arranged and operated that after the said fabric has been coiled
tightly thereon, it can nevertheless be easily removed therefrom.
The construction of the said apparatus will be understood on reference to the
accompanying drawing. It consists of a central mandril a Figs. 1 and 2 having
trunnions a¹ a¹ at each end, which is introduced into a tube-like covering c formed
of a helically wound strip of metal or other material, or silk or other cord, with
spaces left between the convolutions, as shewn, the cross section of the strip being
either square as shewn, or round or of any other configuration, while the ends c¹ c¹
are bent straight, parallel to the axis, as shewn.
Upon the outer surface of the coil c, which is made with spring action, is wound
the sheet of paper or other fabric for forming the tube e, in any desired number of
layers, which may be made to adhere to each other either by the use of cementitious
materials, or otherwise.
The tube having been formed in this manner, the mandril a is removed from
within the coil c, which can be readily effected by turning the same round, whereby
it will screw out of the coil.
A mandril 6 of smaller diameter is now inserted into the coil c, as at Figs. 3
and 4, and on to the projecting ends of this mandril are fitted sleeves dd, having
longitudinal grooves into which fit the ends c¹ c¹ of the coil.
The one sleeve d is fixed by a setting-screw or otherwise to the mandril, while
the other is left loose.
Upon now rotating the two sleeves in contrary directions by any suitable means,
as indicated by the arrows, or by holding the one sleeve stationary and rotating
the other one, or again, by holding the tube e stationary and rotating the sleeve d
that is fixed to the mandril, the end c¹ of the coil connected thereto will be rotated
with it and consequently the convolutions of the coil c, will be consecutively coiled
up tighter, so as to be drawn away from the tube e and applied to the surface of
the smaller mandril b, as indicated at the left hand end of Fig. 3, where the sleeve d
is supposed to be turned together with the mandril b.
When the rotation of the sleeve or sleeves has been continued until all the
convolutions of c have been retracted, both sleeves d are fixed to the mandril b so
as to hold the coil in the retracted position, whereupon the formed tube e, being
now detached therefrom, can be readily drawn off the coil; on then releasing the
ends of the coil c this will spring open again to its original size allowing the
mandril to be removed and the larger one a to be re-introduced.
Instead of having two separate mandrils a and b of different diameters, the
mandril a may consist of a tube or sleeve fitted loose over a, so that after
the operation of forming the tube e, the sleeve a is withdrawn from b, leaving the
latter within c as described.
It will be evident that instead of making the mandrils a, b, and coil c of a
cylindrical form, they may be made polygonal or prismatic, so as to produce tubes
of a corresponding configuration.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. Apparatus for coiling paper, linen, and other materials into tubular form,
consisting of a mandril on which is fitted a helical coil formed of a band of metal
or other material, and having spring action, so that when a tube of paper or other
material has been formed by coiling upon the helical spring coil, the mandril is
removed, and the said spring coil is coiled up tighter so as to reduce its outer
diameter, and thus separate it from the formed tube which can thus be readily
withdrawn substantially as described.
2. Apparatus for coiling paper, linen and other materials into tubular form,

page_text: combined and operating substantially as herein described with reference to the
accompanying drawings.
1
1003
ABEL & IMRAY,
Agents for the Applicant.