IMPROVEMENTS IN THE MANUFACTURE OF PLAIN AND ORNAMENTAL METALLIC FELLOES OR TYRES "
Year: 1883

page_text: LETTERS PATENT to Thomas Fox of Sheffield in the County of York. for
an Invention of IMPROVEMENTS IN THE MANUFACTURE OF PLAIN AND
ORNAMENTAL METALLIC FELLOES OR TYRES
"
PROVISIONAL SPECIFICATION left by the said Thomas Fox at the Office
of the Commissioners of Patents on the 20th June 1883.
THOMAS Fox, of Sheffield in the County of York. "IMPROVEMENTS IN THE
MANUFACTURE OF PLAIN AND ORNAMENTAL METALLIC FELLOES OR TYRES
"
My invention relates to the manufacture of both plain and ornamental metallic
felloes or tyres for the wheels of vehicles, and has for its objects, first, the more
economical manufacture of the crescent shape, and other similar shaped tyres,
such as are used for bicycles and other vehicles, and secondly to a novel method of
ornamenting, and improving the appearance of such tyres:-
-
The ordinary method of producing the finished section of crescent shaped tyres is
by passing the bar of iron or steel through rolls provided with suitable male and
female grooves until the edges of the bar are reduced to the proper thickness and
tho desired curve is attained.
According to my improved method, the bar of suitable metal, preferably steel, is
first rolled with the edges tapered or bevilled to the desired cross section, and as it
emerges from the rolls it is carried forward into a pair of shaping tools, the
interior configuration being so constructed that the already tapered bar is curved
up while being forced through, and thereby acquires the exact cross section of the
finished tyre; instead of the shaping tools above mentioned, a pair of shaping rolls
may be used, placed as before described to receive the bar as it emerges from the
ordinary rolls
The second part of my invention relates to the manufacture of an improved
construction of tyre the object being to secure the rubber tyre without the use of
cement. To carry out this part of my invention I turn up the edges of the flat
bevilled bar by passing it through a pair of rolls, and I then pass it through a pair
of shaping dies which cause the sides to turn upwards, and the turned, over edges
to point inwards and downwards. A comparatively narrow longitudinal opening
Paine GJI

page_text: is left between the turned in edges or wings, for the reception of the rubber tyre.
Rolls may be used, instead of dies, for curving up the flat bar to the desired shape.
As a modification, instead of turning over the thin edges of the bar, to form the
wings, I roll a longitudinal projection, or rib, upon the edges of the bar, so that
when the bar is curved, as before described, the projections or ribs are opposite
each other and form the wings aforesaid. It will thus be seen that when the
rubber tyre is pressed down between the wings into the groove, it expands, and
the wings are firmly embedded into the body of the rubber and thus prevent it
coming out by the strains of ordinary use.
I propose in some cases to forin a shallow groove down the centre of the inside
of-my-improved, or of ordinary tyres, the use of which, will be described further on.
The third part of my invention relates to the covering-and-ornamenting-of
metallic felloes or tyres as herein before described, and consists in sheathing the
metallic felloes or tyres with a thin metallic or other substance, such as sheet brass
(for example), which may be plain and polislied, or fluted, embossed or otherwise
ornamented I take a strip of the proper width and length, and with suitable
tools bend it closely round the outside of the metallic felloe or tyre, turning it
over the edges aud down the inside, where if the tyre is of a plain crescent shape,
it may be secured by brazing or soldering, or in the case of the improved winged
paragon tyre, it may be simply turned back under the wings.-When the metallic
tyre is provided with the shallow longitudinal groove before mentioned, I carry
the sheathing down both sides of the tyre into the groove, the rivet heads of the
spokes, which lay in the groove, hold down the edges of the sheathing; and all the
said parts are effectually secured by a narrow lead strip which presents a smooth
surface for the rubber to rest upon.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent and of
an Order of the Lord Chancellor filed by the said Thomas Fox in the Patent
Office on the 2nd January 1884.
“IMPROVEMENTS IN THE
THOMAS Fox of Sheffield in the County of York,
MANUFACTURE OF PLAIN AND ORNAMENTAL METALLIC FELLOES OR TYRES'
"3
My Invention relates to the manufacture of plain and ornamental metallic felloes
or tyres for the wheels of vehicles, and more particularly to the metallic felloes or
tyres of bicycles, tricycles, and similar vehicles, the objects of the invention being,
first, economy in the manufacture of the ordinary crescent shaped tyre, secondly, to
secure the rubber tyre in the groove of the metallic tyre, without the use of coment,
and thirdly, to give an ornamental and finished appearance to the tyre, by a novel
process. And so that my description and specification may be clearly understood
I shall refer to the annexed sheet of drawings in which similar letters indicate
similar parts, in any of the figures, in which they occur.
The ordinary method of producing the crescent shaped tyre as shown in Fig. 1, is
by passing a bar of metal through grooved rolls until the Edges are thinned down
and the curve is attained. Now according to my invention I roll the metal
(which is by preference steel) into a bar with tapered or bevilled edges as shown
in Fig 2, which represents the cross section of such a bar, and after it emerges
from the bevilling rolls, I cause it to pass between a pair of curving rolls
conveniently placed near the bevelling rolls, and made with a suitable groove, and
corresponding rib or fillet, shown in Fig. 3, so that both operations, of bevilling
the flat bar, and curving it to shape, may be completed at one heat.
Instead of the rolls for curving the bar, I may use a pair of curving dies, or a
wortle, through which the bar is forced or drawn after it leaves the bevilling
rolls:-
The second part of my invention which relates to the securing of the rubber
without the use of cement, is carried out in the following manner by the use of
an improved construction of Tyro which I call " winged paragon tyre" Fig 4. In
the manufacture of this winged tyre I either turn up the extreme edges of the
bevilled bar, or I roll a small rib upon the extreme edges of the bevilled bar as
shown in Figures 5 and 6, which after the bar has been curved, by being passed
through a suitable pair of rolls or otherwise bent, assume the position shown in
Fig. 4 pointing inwards and narrowing the opening into the groove of the tyre―
When it is preferred that the tyre should have a central groove or channel to
receive the heads of the spokes as shown in Fig. 7, I roll the bar to the sectio:
shown in Fig. 8, or thereabouts, so that when it is curved it assumes the peculiar
shape of Fig. 7.-The rubber that I prefer to use in the winged paragon tyre, is
provided with narrow slits or grooves corresponding with the wings of the
metallic tyre, and placed below the centre see Fig. 8 which shows the rubber in
section and is selfexplanatory. It will be understood that when the rubber is
pressed between the wings of the metallic tyre, they will enter the grooves in the
sides of the rubber, and securely hold it in position without the aid of cement.
The third part of my invention consists in sheathing the plain or rough steel
tyre, with a thin metallic covering; this sheathing may be plain polished metal,
or fluted, embossed, engraved or otherwise ornamented, to suit the purpose for
which it is intended. I take a strip of suitable length and width and bend it
closely round the outside of the steel tyre, and with suitable tools bend it over the
edges, and wings.-The edges of the sheathing may only extend sufficiently to be
turned under the "wings," or they may be carried down so as to allow the spokes
to pass through them for the purpose of giving greater security. Fig. 9 shows a

page_text: piece of the sheathing when in the flat strip, Fig. 10 represents a portion of the
completed wheel, A is the rubber, B. the sheathing. Fig 11. is a sectional view of
Fig 10.
"
Having now described and fully ascertained the nature of my said invention,
and the manner in which it may be carried into practice; what I claim as novel
and original, and as the invention secured to me by the hereiubefore in part recited
Letters Patent, is-
First, The method of manufacturing metallic "crescent" shaped tyres by curving
or turning them to the finished section, from bars previously tapered to a
suitable section, such as shown in Fig. 2, substantially as hereinbefore
described-and-illustrated.
Second. Tyres of the "crescent" shape, as used for Bicycles-and-similar vehicles
provided with longitudinal wings or ribs projecting inwards, for the
purpose, and substantially as described and illustrated.
Third. The method of ornamenting the metallic tyres or felloes of Bicycle, and
similar vehicles by sheathing or casing them with a thin metallic
covering, substantially as described and illustrated.
In Witness whereof, 1 the said Thomas Fox have hereunto set my hand and
seal this twenty fourth day of December in the year of Our Lord One
thousand Eight hundred and Eighty three.
THOMAS TOY Gol