Improvements in Wheels for Velocipedes or similar Vehicles.
Year: 1891

page_text: Date of Application, 31st Mar., 1891
Complete Specification Left, 3 st Dec., 1891-Accepted, 20th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Wheels for Velocipedes or similar Vehicles.
I, ROBERT ELLIOTT of 164 Rye Hill, in the City and County of Newcastle
upon Tyne, Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to fasten a tyre to the wheel of a velocipede or
other similar vehicle in such a manner that it can be easily changed, for instance, a
solid tyre taken off and a pneumatic tyre put in its place.
The tyre, whether solid or hollow, is made with a number of "bosses" projecting
from the inner circumference which fit into holes or recesses formed in the rim of
the wheel and are either retained therein by their elastic expansion or fastened by
The projecting
clamps, bolts and nuts, keys, plugs, or other suitable means.
bosses may be round, oval, oblong or of any other suitable shape to fit into similar
shaped holes or recesses in the rim and the tyre may either be sprung onto the rim
the bosses being formed like buttons the heads of which after being pressed
through the holes expand by their elastic action and secure the tyre to the rim
in the manner of rivets and may be further secured by plates fixed with bolts
and nuts.
"
Instead of holes through the rim sunk recesses may be formed therein into which
the "bosses" on the tyre will be sprung and in which they may in some cases
be further secured, if necessary, by bolts and nuts, or by a pin or pins. In
certain alternative forms headed bolts may be inserted in the substance of the
"bosses when the tyre is moulded so as to project through the recessed sub-
stance of the rim and secured thereto by nuts or preferably tapped nuts may be
cast imbedded in the substance of the boss or tyre when being moulded having a
bolt therein which being withdrawn when the tyre is cast leaves a hole for the
insertion of a stud bolt through the rim which being screwed into the nut the
whole is secured by another nut outside. In other alternative forms the "bosses"
on the tyre instead of passing through holes or into recesses in the rim may be
slipped into recesses preferably dovetailed across the rim or into slotted openings
made in one side of the rim and secured therein by clamps or bolts, keys or pins
which, being removed, allow the tyre to slip off the rim of wheel easily. As an
additional fastening the "boss" on the tyre may have a slot formed in it into which
a tongue piece of the rim may enter laterally.
The tyre may in some cases be made with bosses outside the edges of the rim
either opposite each other or alternately arranged and projecting over the rim
sufficiently to allow a bolt or pin to secure them over the rim.
Din 21st day of March 1891
T. J. DANSON,
By L. W., per F. B.
COMPLETE SPECIFICATION.
Improvements in Wheels for Velocipedes or similar Vehicles.
I, ROBERT ELLIOTT of 164 Rye Hill, in the City and County of Newcastle
upon Tyne, Engineer, 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 :-
The object of my invention is to fasten a tyre to the wheel of a velocipede or
other similar vehicle in such a manner that it can be easily changed, for instance, a
solid tyre taken off and a pneumatic tyre put in its place.

page_text: The tyre, whether solid or hollow, is made with a number of "bosses" projecting
from the inner circumference which fit into holes or recesses formed in the rim of
the wheel and are either retained therein by their elastic expansion or fastened by
clamps, bolts and nuts, keys, plugs, or other suitable means. The projecting bosses
may be round, oval, oblong or of any other suitable shape to fit into similar shaped
holes or recesses in the rim and the tyre may either be sprung onto the rim the
bosses being formed like buttons the heads of which after being pressed through
the holes expand by their elastic action and secure the tyre to the rim in the
manner of rivets and may be further secured by plates fixed with bolts and nuts.
Instead of holes through the rim sunk recesses may be formed therein into which
the "bosses on the tyre will be sprung and in which they may in some cases be
further secured, if necessary, by bolts and nuts, or by a pin or pins.
In certain alternative forms headed bolts may be inserted in the substance of
the "bosses" when the tyre is moulded so as to project through the recessed
substance of the rim and secured thereto by nuts or preferably tapped nuts may
be cast imbedded in the substance of the boss or tyre when being moulded having
a bolt therein which being withdrawn when the tyre is cast leaves a hole for the
insertion of a stud bolt through the rim which being screwed into the nut the whole
is secured by another nut outside. In other alternative forms the bosses on the
tyre instead of passing through holes or into recesses in the rim may be slipped
into recesses preferably dovetailed across the rim or into slotted openings made in
one side of the rim and secured therein by clamps or bolts, keys or pins which,
being removed, allow the tyre to slip off the rim of wheel easily. As an additional
fastening the "boss" on the tyre may have a slot formed in it into which a tongue
piece of the rim may enter laterally.
The tyre may in some cases be made with bosses outside the edges of the rim
either opposite each other or alternately arranged and projecting over the rim
sufficiently to allow a bolt or pin to secure them over the rim.
DESCRIPTION OF DRAWINGS.
On the accompanying 2 sheets of drawings I have illustrated my invention in
many different forms in which it may be carried into practical application.
The same letters refer to the same or similar parts on all the figs.
On Sheet 1. Figs. 1. 2. & 3. shew 3 views of a solid rubber tyre T secured to
the wheel rim R by being sprung on and bosses or buttons B forced through holes
at intervals in the circumference of the rim after passing through which they
expand as shewn, by their elasticity.
Figs. 4. 5. 6. 7. 8 & 9 shew modifications of the method of fixing the tyre T to
the rim R. In Fig. 4 the tyre T has at intervals on its circumference projections P
which fit into holes formed in the rim R in which they are secured by pins P passing
through the rim of the wheel. Instead of being circular between the projections
through rim the tyre may be flat on inner circumference as shewn by shaded lines.
In Figs. 5. 6. 7. 8 and 9 the button B formed in the tyre T after being forced
through the hole in the rim R is covered by a guard G screwed onto the rim as
shewn by Figs. 5. 6 and 8 and by Figs. 6. 7 and 9 in which latter the guard G is
made to press onto and further expand the button B making the attachment of the
tyre T to the rim R doubly secure.
Figs. 10. 11 and 12 shew another alternative method of attachment of the tyre T
to the rim R the projections P after passing through the holes in rim expanding
and being further secured by clasps which are drawn up by bolts at ends.
In Figs. 13. 14. & 15 the projection P after passing through the hole in rim is
secured by a bolt key K driven through it and Fig. 16 shews a similar mode of
fastening by a bolt key K driven through the projection P across the rim.
Referring to Sheet 2. Figs. 17. 18 and 19 shew the tyre T with a projection
piece which has a slot in it and slips into a recess Q in side of rim.
The rim R (shewn in Fig. 20) has two recesses QQ and a tongue piece V cut

page_text: in it, the tongue piece V is thrust through the slot S in the projection on the
tyre T (this projection P and slot S are shewn in Fig. 21) and is held there by the
keep plate KP.
Fig. 22 is a pneumatic tyre the mode of fastening it to the tyre being the same
as shewn in Figs. 17. 18 and 19. As shewn on Figs. 23. 24 & 25 the projection P
on the tyre is also slipped laterally into a recess in the rim R and secured therein
by a bolt through a lug L formed in the inside of the rim with an L shaped washer
plate W on opposite side. On Figs. 26 and 27 the rim R is shewn with dovetailed
recesses or pockets Q formed projecting from its inner circumference into which
the projections P on the tyre slip laterally and are secured by a bolt.
In this as in all the forms of my invention shewn by Figs. 17. 18. 19. 20. 21. 22.
23. 24 and 25 the tyre is fitted to the rim by being slightly sprung and then
laterally drawn onto the rim.
Figs. 28. 29 & 30 shew another method of securing the tyre T to the rim R in
which the tyre in its process of manufacture has imbedded into its substance and
through the projection P, T headed bolts. The projections P are sprung into the
recesses on the rim the projecting ends of the imbedded bolts passing through
holes therein and screwed tightly by nuts to the rim. The tyre in this case may
be circular in section, as shewn, or may be shaped to lie flat against the rim as in
shaded lines.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what [
claim is :-
1st. The improvement in wheels for velocipedes or similar vehicles consisting
in securing the tyre to the rim by means of projecting bosses or buttons formed
upon the tyre which fit into holes or recesses in the rim when the tyre is sprung
over the rim, and are retained therein by their elastic expansion as in Figs. 1. 2 and 3
(Sheet 1) or are further secured by transverse bolts through upturned flanges
on the rim as in Fig. 4 (Sheet 1) or by guard plates screwed to the rim as in
Figs. 5. 6. 7 8 and 9 (Sheet 1) or by clamping clasp plates on each side of the
projections as in Figs. 10 11 and 12 (Sheet 1) or by pins or bolts passing trans-
versely or longitudinally through the projections upon the inside of the rim as in
Figs. 13 14. 15. and 16 (Sheet 1) or by the tyre having imbedded and secured in it
bolts which project out of the bosses and pass through holes in recesses sunk in
the rim and are therein secured by nuts as in Figs. 28. 29 and 30 (Sheet 2)
substantially as described and shewn.
2nd. The alternative methods of securing the tyre to the rim, by springing it
and laterally inserting the projections upon it into recesses formed partially
across the rim and securing them therein by "keep" plates as in Figs. 17. 18.
19. 20. 21 and 22 (Sheet 2) or by the projection passing into a recess against a
lug or rim and secured by a bolt with a washer plate as in Figs. 23. 24 and 25
(Sheet 2) or by the projection passing into a dovetailed recess in the rim, a bolt
being inserted through both as in Fig. 26. 27 (Sheet 2) substantially as described
and shewn.
Dated this 30th day of December 1891.
T. J. DANSON, F. Inst. P.A.,
Chartered Patent Agent, Agent for Applicant.