New or Improved Tools or Appliances for Detaching the Outer Covers of the Pneumatic Tyres of Velocipede and other like Wheels.
Year: 1896

page_text: Date of Application, 20th Nov., 1896
Complete Specification Left, 30th July, 1897-Accepted, 11th Sept., 1897
PROVISIONAL SPECIFICATION.
New or Improved Tools or Appliances for Detaching the Outer Covers
of the Pneumatic Tyres of Velocipede and other like Wheels.
We SAMUEL GEORGE MOORE, of the Firm of Hinks, Wells and Company, of
Buckingham Street, Birminghain, in the County of Warwick, Manufacturers, and
ROBERT TAAFFE BYRNE, of the Birmingham India Rubber Company, No. 124 New
Street Birmingham, aforesaid India Rubber Manufacturers do hereby declare the
nature of this Invention to be as follows:-
Our invention consists of the new or improved tools or appliances hereinafter
described by the use of which the detaching of the covers of pneumatic tyres of
velocipede and other like wheels from the rims of the said wheels may be readily and
expeditiously effected.
Our invention relates to the detaching of those covers of pneumatic tyres which
have in their edges inextensible wires or cores and in order that our invention may be
the better understood we remark that great difficulty exists in getting one or other
of the edges of the said covers over the edge of the rim of the wheel when it is wished
to remove the cover and tyre from the said wheel.
One of the tools or appliances constituting part of our invention consists of a flat,
preferably steel, lever the said lever having a curvature lengthwise similar to that of
the edge of the wheel rim. Near one end of the said lever a short U shaped trough
is jointed the edge or side of which trough opposite the side at which it is jointed to
the lever being slightly turned or curved inwards. The said U shaped trough is
capable of swivelling on its joint. The other end of the lever has an elastic or
spring clip.
The flat arm of the said tool or lever when the lever is not in use lies on the inner
side of the edge of the wheel rim the U shaped trough on the inner side of the said
lever being engaged with the edge of the cover adjacent to the said lever, the clip on
the outer side of the lever clipping the edge of the rim.
When it is wished to remove the cover from the tyre, the tyre having been deflated
the clip of the lever is disengaged from the edge of the wheel rim and the said lever
is turned on the joint near its other end into a vertical position. The said lever is
then turned outwards on the edge of the rim as a fulcrum by which action the edge
of the tyre with which the .U shaped trough of the lever is engaged is prised or
brought over the edge of and on to the outer side of the rim. By now working the
U shaped trough of the lever by a pulling or pushing action round the edge of
the rim the continuous edge of the cover is brought over the edge of the rim when the
easy detachment of the cover and tyre from the rim may be effected.
The lever or tool described may be separate from the rim and tyre, that is to say,
when it is not in use it may be detached from the edge of the cover and be stored in
the cyclist's tool bag or wallet. In the case of a separate tool the spring clip at the
outer end of the lever for clipping the rim may be dispensed with, and the U shaped
trough of the tool may be unjointed and be made in one piece with the flat body of

page_text: the tool by coiling up the end of the said flat body the prising end or lip of the tool
being inade by piercing a portion of the middle of the trough and bending down the
pierced part into the same plane as the flat body.
Dated this Twentieth day of November 1890.
W. T. WHITEMAN,
Agent for the Applicants.
New or Improved Tools or Appliances for Detaching the Outer Covers
of the Pneumatic Tyres of Velocipede and other like Wheels.
We, SAMUEL GEORGE MOORE, of the Firm of Hinks, Wells and Company, of
Buckingham Street, Birmingham in the County of Warwick, Manufacturers and
ROBERT TAAFFE BYRNE, of the Birmingham India Rubber Company, No. 124
New Street, Birmingham, aforesaid, India Rubber Manufacturers do hereby declare
the nature of our invention and in what manner the same is to be performed to bo
particularly described and ascertained in and by the following statement :-
Our invention consists of the new or improved tools or appliances hereinafter
described by the use of which the detaching of the covers of the pneumatic tyres of
velocipede and other like wheels from the rims of the said wheels may be readily and
expeditiously effected.
Our invention relates to the detaching of those covers of pneumatic tyres which
have in their edges inextensible wires or cores and in order that our invention may
be the better understood we remark that great difficulty exists in getting one or other
of the edges of the said covers over the edge of the rim of the wheel when it is
wished to remove the cover and tyre from the said wheel,
One of the tools or appliances constituting part of our invention consists of a flat,
preferably steel, lever, the said lever having a curvature lengthwise, similar to that of
the edge of the wheel rim. Near one end of the said lever a short U shaped trough
is jointed the edge or side of which trough opposite the side at which it is jointed to
the lever being slightly turned or curved inwards. The said U shaped trough 18
capable of swivelling on its joint. The other end of the lever has an electric or spring
clip.
The flat arm of the said tool or lever when the lever is not in use lies on the inner
side of the edge of the wheel rim, the U shaped trough on the inner side of the said
lever being engaged with the edge of the cover adjacent to the said lever, the clip on
the outer side of the said lover clipping the edge of the rim.
When it is wished to remove the cover from the tyre, the tyre having been deflated,
the clip of the lever is disengaged from the edge of the wheel rim and the said lever
is turned on the joint near its other end into a vertical position. The said lover is
then turned outwards on the edge of the rim as a fulcrum, by which action the edge
of the tyre cover with which the U shaped trough of the lever is engaged is prised or
brought over the edge of and onto the outer side of the rim. By now working the
U shaped trough of the lever by a pulling or pushing action round the edge of the rim
the continuous edge of the cover is brought over the edge of the rim when the easy
detachment of the cover and tyre from the rim may be effected.
The lever or tool described may be separate from the rim and tyre; that is to
say, when it is not in use it may be detached from the edge of the cover and be stored
in the cyclist's tool bag or wallet. In the case of a separate tool the spring clip at the
outer end of the lever for clipping the rim may be dispensed with, and the U shaped
trough of the tool may be unjointed and be made in one piece with the flat body of
the tool by coiling or bending the end of the said flat body, the prising end or

page_text: fulcrum lip of the tool being made by piercing a portion of the middle of the tool and
bending down the pierced part.
Figure 1 of the accompanying drawing represents in side elevation, a portion of a
pneumatic tyre and outer cover to which a lever tool constructed according to one
part of our invention is applied; Figure 2 represents a cross section taken through
the engaging and prising end of the tool on the dotted line a, a Figure 1 and
Figure 3 represents a cross section taken through the clip end of the tool on the
dotted line b, b Figure 1; Figure 4 represents the tool after it has been raised on its
joint and Figure 5 represents the same after the wired edge of the tyre cover has been
been lifted or prised and brought over the edge of the rim for its detachment as herein
after described.
Figure 6 represents a side elevation of the lever tool detached from the tyre. In
Figures 1, 2 and 3, the tyre is represented in its inflated condition and in Figures 4
and 5 in its deflated condition.
The same letters of reference indicate the same parts in the several figures of the
drawing.
c is the flat arm of the lever tool having a curvature lengthwise similar to that of
the edge of the wheel rim d. The said lever tool is situated within the inner side
of the rim d so as to be carried thereby and is secured to the rim by the elastic or
spring clip e at the free end of the said tool, the said clip embracing the rim in the
manner represented in Figure 3. Near the other end of the lever tool c is jointed
at f, a short U shaped trough f which is engaged with the wired edge g of the outer
cover has seen in the drawing, the inner edge or side of the trough f being slightly
curved inwards. The lever tool lies lengthwise on the inner side of the rim as
seen in Figure 1 and is ready for use for removing the outer cover of the tyre.
To remove the cover h from the tyre, the tyre is deflated and the clip e disengaged
from the edge of the wheel rim, and the lever tool c is turned upwards on its
joint and slightly lifted from the rim into the position represented in Figure 4,
the fulcrum end of the lever tool c being now situated outside the rim and
below the trough f. The lever tool is next turned downwards on the edge of the
rim so as to cause its fulcrum end c to bear against the said rim. By this action the
wired edge g of the tyre cover h, with which the U shaped trough of the lover tool
is engaged, is prised or brought over the edge of and on to the outer side of the
rim as represented in Figure 5. The U shaped trough of the lever tool is now
worked by a pulling or pushing action round the edge of the rim so as to bring the
continuous wired edge g of the cover over the edge of the rim, when the easy
detachment of the outer cover from the tyre may be effected.
The lever tool instead of being used as part of the rim may be separate from
the rim the clip e in that case being dispensed with, but when the lever tool is
separate from the rim and stored in the cyclist's tool bag, we prefer to make the
lever tool in the manner represented detached in Figure 7 and applied to the tyre
in Figure 8. In this modified lever tool the part for engaging with the wired edge
of the outer cover is unjointed and is made in one piece with the body of the tool;
i is the flat body of the tool and k the extreme end of the tool which is slightly bent
or turned upwards for engaging under and lifting the wired edge g of the cover h,
and is the prising lip made in one piece with the flat body of the tool that is, made
by piercing a portion of the middle of the tool and bending down the pierced part at
right angles.
In using the separate tool Figure 7, its extreme bent or turned up end k is engaged
under the wired edge g of the outer cover has illustrated in continuous lines in
Figure 8, its turned back fulcrum lip resting on the edge of the rim d. By turning
down the lever tool into the position indicated in dotted lines in Figure 8, the
fulcrum lip bearing on the edge of the rim, prises, by a levering action, the wired
edge of the cover out of the rim as indicated in dotted lines, and by then pulling or
pushing the tool round the edge of the rim, the whole of the cover is lifted out of the
rim and detached.
Instead of bending slightly upwards the extreme end of the lever tool it may be

page_text: curved or bent up into a U shaped trough similar to that of the tool first described,
but we prefer to use a turned up end of the kind represented when the tool is
separate from the rim.
Having now particularly described and ascertained the nature of our
invention and in what manner the same is to be performed we declare that we claim
as our invention-
The new or improved tools or appliances for detaching the outer covers of the
pneumatic tyres of velocipede and other like wheels herein before described and
illustrated in the accompanying drawing; that is to say, lever tools for the purpose
described having near one end a jointed U shaped trough and at the other end an
elastic or spring clip for use when the tool is secured to the tyre, the said jointed
U shaped trough being engaged with the wired edge of the cover and the said edge
lifted from the rim by first raising and then depressing the long arm of the lever
tool substantially as described and illustrated: or lever tools for the purpose described
in which the parts for engaging under or with the wired edge of the cover and for
lifting the said edge out of the rim are made in one piece with the body of the lever
tool substantially as described and illustrated.
Dated the Seventeenth day of July 1897.
SAMUEL GEORGE MOORE.
ROBERT TAAFFE BYRNE.