Improvements in the Manufacture of Rollers and Cylinders Covered with India Rubber or other Elastic Material, said Improvements being also Applicable to Wheel Tyres.
Year: 1889

page_text: Date of Application, 1st Nov., 1889-Accepted. 7th Dec., 1889
COMPLETE DI MOITIATION
Improvements in the Manufacture of Rollers and Cylinders Covered
with India Rubber or other Elastic Material, said Improvements
being also Applicable to Wheel Tyres.
I, JAMES TULLO of 2 Hanover Street in the City of Edinburgh, India Rubber
Manufacturer, 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 all classes of rollers and cylinders covered with india
rubber or like elastic material and which are used extensively in various arts and
manufactures and it consists in improved arrangements for connecting the india
rubber or like covering to the body of the roller and also for connecting one section
of the covering with another the improvements being also applicable to wheel tyres.
On the accompanying drawings figure 1, is a cross section and figure 2, an
elevation of a roller with its india rubber or like covering A, secured to the body B,
in accordance with my Invention. The body B, which may be of iron, steel, wood,
paper, brass, copper, or any other material, capable of being covered with India
rubber, gutta percha or other elastic material, has a number of dovetailed mortico
grooves parallel to the length of the roller into which correspondingly shaped
tenons D, also parallel to the length of the roller are entered the covering being
slipped into position from one end of the roller. The dovetailed tenons D, bind the
covering securely to the body of the roller and the covering is prevented from slipping
endwise by two plates or flanges E, which, after the covering has been adjusted are
screwed or otherwise fastened to the extremities of the roller.
The covering A, may be made in one piece of the length of the roller as at figure 2
or it may be built up of sections or rings these sections or rings being merely butted
against each other as at figure 3 or having their meeting sides rebatted or mortised so
as to lock joint as at figure 4, each section or ring having in either case dovetailed tenons
entering corresponding grooves in the body of the roller or cylinder. The covering
whether made in sections or in one piece may be manufactured either of pure rubber
or of compounded or mixed rubber, vulcanized, soft or clastic, or of junction rubber,
partly hard and partly soft, or entirely hard, or of any degree of consistency or
firmness, as I may determine.
Figuro 5, illustrates in side elevation and figure 6, in front elevation the adaptation
of the improved joint to wheel tyres. After the tyre A, has been placed on the wheel
by entering its tenons D, into the correspondingly shaped mortices on the body B it
is prevented from moving sidewards by plates É screwed or otherwise fastened to the
body.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is ;-
1. In rollers or cylinders covered with india rubber or the like, connecting the
covering to the body of the roller by mortice and tenon joints extending parallel to
the length of the roller, the said covering being made in one piece or built up of
segments or rings butted against or rebatted or mortised into each other substantially
as described with reference to figures 1, 2, 3 and 4, of the annexed drawings.

page_text: 2. In wheels having tyres of india rubber or the like connecting the tyre to the
body of the wheel substantially as described with reference to figures 5 and 6 of the
accompanying drawings.
Dated this Thirty-first day of October 1889.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow, Agents.