Improvements in the Construction of the Rims of Wheels, such being specially applicable to Cycle Wheels having Pneumatic Tyres.
Year: 1893

page_text: Date of Application, 28th July, 1893
Complete Specification Left, 28th Feb., 1894-Accepted, 7th Apr., 1894
PROVISIONAL SPECIFICATION.
Improvements in the Construction of the Rims of Wheels, such
being specially applicable to Cycle Wheels having Pneumatic
Tyres.
I, THOMAS BIRCH, of The Priory, Harehills Avenue, in the City of Leeds,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
My invention relates to certain improvements in the construction of the rims of
wheels, such being specially applicable to cycle wheels having pneumatic tyres.
The object of my invention being to provide a rim for cycle wheels having
pneumatic tyres which will not only hold the tyre in its position but allow for its
being removed or taken off the wheel when required.
According to my invention the rim is built up by means of a ring or base which
in section is in or after the form of an angle iron, resting upon the said rim or
base are other rings in or after the form of T irons, in section, which when the
wheels are to have pneumatic tyres are made with lips or projecting flanges for
receiving such tyres. A rectangular (in section) or other such ring completes the
rim, bolts passing through the rim, at suitable positions, bind or secure the said
rectangular and T iron rings together.
When it is required to remove the tyre the bolts are unscrewed which allows the
said rectangular ring to be taken off the rim and so admit of the tyre being readily
detached.
Dated this 27th day at Lul., 1002
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent to the Applicant.
Improvements in the Construction of the Rims of Wheels, such
being specially applicable to Cycle Wheels having Pneumatic
Tyres.
1, THOMAS BIRCH, of The Priory, Harehills Avenue, in the City of Leeds,
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:
My invention relates to certain improvements in the construction of the rims of
wheels, such being specially applicable to cycle and other wheels having pneumatic
tyres.
The object of my invention being to provide a rim for cycle and other wheels
baving pneumatic tyres which will not only hold the tyre in its position but allow
for its being removed or taken off the wheel when required.
In carrying out this object I construct the said rim in two parts, one part forming
the pneumatic tyre portion, and a detachable part which forms the hub and spokes
portion, and which can be readily attached to and detached from the tyre portion,
as hereinafter set forth.

page_text: i
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DESCRIPTION OF DRAWINGS.
Fig. 1, is a side elevation of cycle wheel constructed according to my improve-
ments.
Fig. 2, is a section of pneumatic tyre and rim.
Fig. 3, is a plan of pneumatic tyre portion of rim with clip in position, as when
securing the opening parts of this portion of the rim together.
Fig. 4, is a plan of pneumatic tyre portion of rim with clip turned up out of its
fastening position, as when opening this portion of the rim to get to the air tube.
Fig. 5, is a plan of rim showing clips or fasteners for securing the detachable
part to the tyre part of the rim.
Fig. 6, is a sectional end view of rim made of wood.
Fig. 7, is a sectional end view of rim-made of iron.
According to my invention the rim is built up by means of a ring or base A
which in section is in or after the form of an angle iron, and secured to which are
the spokes of the wheel. Resting upon the said ring or base are other rings B
and C similar in section when combined, to a T iron, the projecting lips of which
are suitably curved or rounded. To these rings B and C the tyre D is secured
by means of canvas E, which is cemented to, and passes round the inside of the
tyre and forms a canvas backing, and then passes round the said rings B and C to
which it is also cemented, the said rings being fastened together by clips or
fasteners F¹. F is the air tube. The rim is completed by means of a ring G
which may be either fast, or loose or detachable, preferably fast. When required
to be fast it is secured by screws or other such means to the ring B, when loose or
detachable it is held in position by the hinged clips G. The detachable part of
the rim is secured to the tyre portion by means of a series of hinged clips or
fasteners G¹, fixed on the detachable part of the rim and which have grooves H
adapted to spring or clip on to ribs J around the ring G and ring or base A.
When it is required to remove the-tyre portion the hinged clips or fasteners G¹
are turned up by means of the lips K on their hinges, which allows the detachable
part of the rim to be readily removed.
The rim is preferably made of wood such as lance-wood and beech. Or it may
be made of any other suitable substance or material.
In some cases the rim may be made of iron or any other suitable metal, the tyre
portion may be made of wood or other suitable substance, and the detachable part
of the rim of iron or other suitable metal.
The ring G may be either of wood or other suitable substance or of metal, as
preferred.
When the detachable part of the rim is made of wood it is provided with a steel
band L which encircles it and strengthens it for receiving the spokes.
When such detachable part is made of iron the said steel band is dispensed with
and the spokes pass through a rib N upon the rim.
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 I
claim is :-
1. A rim, for wheels having pneumatic tyres, constructed in two portions, one
forming the tyre part, and the other a detachable part, substantially as and for the
purposes shown and described.
2. A rim, for wheels having pneumatic tyres, built up by means of a ring or
base A, rings B and C to which the pneumatic tyre is secured, and a ring G,
together with clips or fasteners, substantially as and for the purposes shown and
described.
3. A rim, for wheels having pneumatic tyres, in which the pneumatic tyro is
secured to rings capable of being brought together or put apart so as to make the
inside of the tyre, or the air tube readily accessible, substantially as set forth.

page_text: 4. A rim, for wheels having pneumatic tyres, in which the pneumatic tyre is
secured to wooden or other such rings abutting on a ring or base either of wood or
metal, in conjunction with a further ring which forms one side of the said rim, the
parts of the rim being secured by clips or fasteners, substantially as and for the
purposes shown and described.
Dated thie 19th day of Januar 1804
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent to the Applicant.