Year: 1886

page_text: We, THOMAS CRAVEN, of Low Mill, Manufacturer, SAMUEL GILL, of 18, Park
Terrace, Mechanic, and CHARLES FORREST, of 11, Barrett Street, Tube Maker, all
of Keighley, in the County of York, do hereby declare the nature of this invention
to be as follows:-
This invention relates to certain improvements in apparatus for the manufacture
of conical paper tubes; and has for its object, the arrangement of the apparatus in
such a manner, that the paper cutting waste is greatly reduced when the tubes
are made from a continuous roll or web of paper fed to the machine mechanically.
We accomplish our object by passing the web of paper between ordinary pasting
rollers, and cutting the paper by a rotating knife which enters a groove cut in the
longitudinal direction of a roller. The length of paper to form a tube may be
conveyed by an endless belt or rollers to a rotating conical spindle, around which
it is wrapped by a presser in contact therewith.
By wrapping a parallel piece of paper around a conical spindle, the ends of the
tube are irregular, and which on the removal of the presser we cut away by means
of an oscillating or circular knife, or by a disc mounted to a lever and brought
into contact with the tube by a cam or tappet. On the withdrawal of the knives
or discs from the tube, it is removed from the spindle in the same manner as
when making parallel tubes.
Dated this ofth da
1005
JOHN WAUGH,
Agent.

page_text: Improvements in Apparatus for Making Conical Paper Tubes.
We, THOMAS CRAVEN, of Low Mill, Manufacturer, SAMUEL GILL of 18 Park
Terrace, Mechanic, and CHARLES FORREST of 11 Barrett Street, Tube Maker, all
of Keighley in the County of York 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 certain improvements in apparatus for the manufacture
of conical paper tubes, and has for its object the arrangement of the apparatus in
such a manner, that the paper cutting waste is greatly reduced when the tubes
are made from a continuous roll or web of paper fed to the machine mechanically.
The paper is fed, cut and pasted from a continuous roll or web as in the ordinary
parallel tube making machine, but instead of the paper being wrapped by the
presser around a parallel spindle, it is wrapped around a conical or taper spindle.
The act of wrapping a parallel piece of paper around a conical spindle causes the
ends of the conical tubes so made to be irregular, which we trim on the removal of
the presser by means of two circular knives brought into contact with the tube by
a cam or tappet; the tube being removed from the spindle by the ordinary means
directly the knives are withdrawn.
In order to show more clearly the invention, we append hereto a sheet of
drawings in which Fig. 1 is a side view of a paper tube making machine showing
such old parts as are necessary to explain the invention. Fig. 2 is a front view,
Fig. 3 a plan, Fig. 4 a detail of one of the arms and knives, and Fig. a portion of
the conical spindle. In all the figures similar letters indicate similar parts.
In place of the ordinary parallel spindle, we fix to the rotating shaft A, mounted
in the headstock, a conical spindle A¹ to which the paper is fed, pasted, and cut
from a continuous roll or web, the length of paper thus cut being conveyed and
pressed on the spindle A¹ by the presser roller E in the same manner as described
in Specification No 4394. A.D. 1880. But by forming conical tubes from parallel
sheets of paper, the ends of the tubes are irregular and require to be trimmed,
which we accomplish by mounting a shaft B parallel to the shaft A, the former
carrying two adjustable arms C, to each of which is attached a circular knife D
mounted on a stud and free to revolve thereon. The distance between the knives
may be altered to suit various lengths of tubes by moving and securing the arms C
in different positions on the shaft B.
When a paper tube has been rolled and pressed by roller E on the conical
spindle A, the presser roller E is removed from the said spindle in the manner as
described in the before mentioned specification; the knives D are then operated,
and press against the paper tube on the spindle A¹ thereby cutting off the
irregular ends.
The movement of the knives we effect by placing on the centre shaft S of the
machine a cam F rotating in the direction of the arrow thereby operating the bell
crank lever G secured to the additional shaft B, by which the latter is partially
turned in its bearings, the knives D being thus brought into contact with the

page_text: paper tube on the conical spindle A¹ thereby cutting off the irregular ends of the
paper tube. Directly the paper tube has been cut in the manner described, the
cam F allows the knives D to be pulled back clear of the spindle A¹ by means of
the elastic or metal spring H attached to the framework and to the vertical lever J
secured on the shaft B, when the tube is free for being removed off the conical
spindle A¹, which is effected by the lever K mounted on a stud secured to the
bracket K¹, the said lever having a stud fixed thereto which engages in the
irregular groove cut in the rotating roller L, thereby causing the lever to move in
accordance with the groove and actuate the tube remover M, the latter, at the
appointed time sliding to and fro on the spindle A¹.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, we declare that what
we claim is
In a paper tube making machine, the combination of the conical spindle A² with
the knives D for making and cutting off the irregular ends of conical paper tubes,
all arranged substantially in the manner as described and shewn by the accom-
panying drawings.