Improvements in Spindles for Winding Paper, Making Paper or Straw Board Tubes or Shells, and for other purposes.
Year: 1892

page_text: Date of Application, 1st Dec., 1892
Complete Specification Left, 31st Aug., 1893-Accepted, 21st Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Spindles for Winding Paper, Making Paper or
Straw Board Tubes or Shells, and for other purposes.
We, the Firm of BERTRAMS LIMITED, Engineers and SAMUEL MILNE,
Draughtsman, all of St. Katherines Works, Sciennes Edinburgh in the County of
Midlothian, North Britain, do hereby declare the nature of this invention to be
as follows:-
This invention relates to improvements in spindles for making paper or straw
board tubes or shells and for other paper or straw board manufacturing purposes.
The invention consists in so constructing the spindle that its diameter may be
varied as desired, for the purpose of making paper tubes or straw board shells as
used for various purposes such as sending articles through the post; for winding
paper upon and such like. The tube is made on the spindle and the diameter of the
spindle is reduced to facilitate the removal of the tube. For winding paper on
the tubes or shells or ou wooden bobbins, the tube or bobbin is placed on the
spindle in the desired position and the spindle expanded to hold firmly in that
position. When the reel is wound up the diameter of the spindle is reduced
and with drawn from the reel. The invention is also for the purpose of
winding up paper in the manner as described but without the use of tubes, shells or
bobbins. Also for the purpose of placing on webs of paper when they are to be
unwound as in printing presses, bag making machines, calenders and such like, the
action being reversed from that described with reference to the winding of paper on
tubes or shells.
The expanding or contracting of the spindle is effected as follows. Its circum-
ference is made up of three, four or other number of sections. A bar with a hole
through it, is provided through the centre of the said spindle from end to end
thereof. Through the bar is a rod having a series of notches or inclined planes cut
on'it. Corresponding to each notch or incline in the rod there is a radial slot
through the bar into which slot a sliding pin is fitted, the one end of the sliding pin
bearing against the inclines of the rod, the other end bearing against or being cou-
'nected to the one section of the spindle. When the central rod is moved along within
the bar the sections of the spindle are moved out or in through the medium of the
'sliding pins and the inclines, the diameter of the spindle being thus increased or
decreased. The moving along of the rod within the bar may be effected in either
direction by nuts or other means.
The sections composing the spindle may be of any shape according as whether a
round, square or other shaped spindle is desired.
Any convenient arrangement may be employed so that the sections will move
'inwards when the rod is moved to reduce the diameter of the spindle such as by
any convenient arrangement of springs.
t
Dated this 30th day of November 1892
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicants' Agents.

page_text: •
COMPLETE SPECIFICATION.
Improvements in Spindles for Winding Paper, Making Paper or
Straw Board Tubes or Shells, and for other purposes.
We, the Firm of BERTRAMS LIMITED Engineers and SAMUEL MILNE,
Draughtsman, all of St. Katherines Works, Sciennes, Edinburgh in the County of
Midlothian North Britain, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
This invention relates to improvements in spindles for winding paper; making
paper or straw board tubes or shells and for other paper or straw board manufac-
turing purposes and has for its object to so arrange and construct the said spindles
that their diameters may be easily and quickly varied when desired, so as to
facilitate their removal from the finished tube or shell or their insertion in the tubes,
shells or bobbins when paper or the like is being wound thereon.
But in order that our said invention may be more readily understood, and easily
carried into effect, we will proceed to describe the same with reference to the
accompanying drawings.
Figures 1 and 2 are cross section and part longitudinal section of a spindle con-
structed in accordance with our invention, shown in its closed position.
Figures 3 and 4, are similar views of same shown in the open position.
Figure 5 is a part longitudinal section showing one of the springs.
Figure 6, is a plan showing recess for the spring. And
Figure 7, is a developement of the surface of the spindle showing the arrange-
ment of the pins and springs.
Referring to the said drawings, we form the outer shell or circumference of the
spindle, of any number of longitudinal sections A, which are preferably made of
brass. Within the sections A, we mount a central rod or bar B, which has a circular
hole formed through its centre from end to end thereof. Through the said circular
hole is passed a circular rod or bar C, which is provided with suitable means, such
as pins and grooves for preventing it from revolving, also means, such as screws
and nuts at either or both ends for enabling it to be moved longitudinally within
the rod or bar B. This rod C is formed with a number of notches or inclined
planes c around its circumference in a spiral direction, and against the faces of
which work the internal ends d of a number of operating pins D which pass through
radial slots formed in the bar B and are connected at their other ends d¹ to the
sections A, in such a manner that on the rod C being moved along, in the direction
of the arrow in Figure 4, the pins D would be caused to slide up the inclined
planes c and by so doing increase the diameter of the spindle as shown in Figures 3
and 4. On the rod C being moved in the opposite direction the pins D are caused
to slide down the inclined planes c and by so doing decrease the diameter of the
spindle, this contracting of the sections A being ensured of by means of providing
each section with two or more spring arrangements E, Figure 5, which are fitted
into recesses e formed in the rod or bar B, Figure 6; said springs E engaging with
suitable catches a formed on or attached to the various sections A.
The whole arrangement thus forms an efficient spindle which, owing to its con-
struction, may have its diameter increased or decreased when desired. The said
spindle may be used for, making paper or straw board tubes or shells, such as are
used for sending articles through the post; or for winding paper upon and such
like, in which case the tube or shell is made on the spindle with its sections extended,
and after the tube or shell is made the sections are collapsed so as to allow of its
removal from the spindle. For winding paper or the like on tubes, shells or wooden
bobbins, the tube or bobbin being placed on the spindle in the desired position and
the sections expanded so as to retain the tube or bobbin in such position, until the
reel has been wound when the sections are collapsed and the spindle withdrawn.

page_text: The spindle may be used for the foregoing purpose without a tube, shell or bobbin
being employed. Also the spindle may be used for the purpose of placing on webs
or reels of paper when they are to be unwound, as in printing presses, bag making
machines, calenders and such like.
The sections composing the spindle may be of any desired shape and size so as to
form a round, square or other shaped spindle accordingly as desired. Also the
outer ends of the sliding pins may be disconnected from the sections and simply
bear against same, and if desired any equivalent arrangement may be used in lieu
of the springs for contracting the sections.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1st. The general arrangement, construction and combination of the various parts
constituting the spindle for making paper or straw board tubes or shells and for
other paper or straw board manufacturing purposes, substantially as and for the
purposes hereinbefore, described and shown in the accompanying drawings.
2nd. The central rod or bar C having inclined planes and sliding pins D,
whereby on said rod being moved in a certain direction the sections of the spindle
are forced outwards so as to increase the diameter of the spindle, substantially as
hereinbefore described and shown in the accompanying drawings.
3rd. The spring arrangements E in combination with the central rod or bar C,
whereby on the rod heing moved in a certain direction, the springs E draw the
sections of the spindle inwards and so decrease the diameter of the spindle, substan-
tially as hereinbefore described and shown in the accompanying drawings.
Dated this 30th day of An 1803
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicants' Agents.