An Improved Implement for Facilitating the Manipulation of Pneumatic Tyres.
Year: 1897

page_text: Date of Application, 28th Dec., 1897
Complete Specification Left, 31st Jan., 1898-Accepted, 19th Mar., 1898
PROVISIONAL SPECIFICATION.
An Improved Implement for Facilitating the Manipulation of
Pneumatic Tyres.
I, HUGH SWANTON, of 79, White Horse Street, Stepney, in the County of
Middlesex, Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to overcome the difficulty experienced in the
removal and replacement of pneumatic tyres of the inextensible rim type.
The makers of this class of tyre recommend the handle of a tooth-brush as a suit-
able appliance, but for unskilled hands something better is required.
To meet this demand I provide an implement preferably of steel which may
resemble the handle of a tooth-brush. One end is prepared with a transverse groove
to engage the rim of the tyre, and is bent or curved in order to facilitate adjustment.
The other end of the implement is provided with a hook or some means of engaging
the spokes of the wheel.
To reduce weight to the utmost the implement may be made of thin corrugated
steel or other suitable material.
Three of these implements may conveniently form a set and they may be advan-
tageously employed as follows:
The tyre being deflated the grooved end of the tyre-remover is placed under the
wired rim of the tyre and used as a lever till the hooked end will engage one of the
spokes of the wheel, the rim of the wheel forming a fulcrum. A second and third
may be similarly applied two or three inches from the first. The centre implement
may now be removed if it has not disengaged itself and be applied again as a fourth,
and so on till the most obstinate tyre is removed without effort or an assistant. The
tyre-remover inverted can be used to replace the tyre with equal facility, the grooved
end being applied to the rim of the wheel.
Dated this 94th day of December 1907
COMPLETE SPECIFICATION.
An Improved Implement for Facilitating the Manipulation of
Pneumatic Tyres.
I, HUGH SWANTON, of 79, White Horse Street, Stepney, in the County of
Middlesex, Engineer, do hereby declare the nature of this invention and in what
manner the saine is to be performed, to be particularly described and ascertained
in and by the following statement :-
The object of this invention is to overcome the difficulty experienced in the
removal and replacement of pneumatic tyres of the inextensible rim type.

page_text: The makers of this class of tyre recommend the handle of a tooth-brush and the
handle of a common spoon is also employed, but in unskilled hands something better
is required.
Fig. 1 illustrates an implement in perspective. The implement or tyre remover
may be constructed of steel or other suitable material. One end is prepared with a
transverse groove A to engage the wired rim of the tyre and is bent or curved to
facilitate adjustment. The other end of the implement is provided with some means
of engaging a spoke of the wheel preferably a simple hook as shown at B. I prefer in
practice to employ three of the implements described above as follows:-
The tyre being deflated and eased in the usual manner the grooved end of the tyre
remover is placed under the wired rim of the tyre as shown in Fig. 2 opposite one of
the spokes and is used as a lever, the rim of the wheel forming a fulcrum till the
hooked end B will engage the spoke of the wheel as shown in Fig. 3, thereby auto-
matically retaining a portion of the rim of the tyre above the rim of the wheel.
second and third may be similarly applied opposite adjacent spokes. A larger portion
of the wired rim is now secured above the rim of the wheel but not sufficient to free
an obstinate tyre. The centre implement may now be removed if it has not
disengaged itself and he applied again as a fourth and so on until the most obstinate
tyre is removed entirely unaided and with great facility even in the hands of a child,
this step-by-step method of detachment overcoming the difficulties hitherto
experienced.
A
I may here point out that the leverage reduces the strain on the spokes to a
negligeable quantity.
The implement inverted may be used to replace the tyre with equal facility, the
grooved end being applied to the rim of the wheel.
Fig. 4 shows a modification of my invention in which the rim of the wheel is used
instead of the spoke to attain the same result, the hook B being replaced by a con-
veniently shaped hook 6 which is connected to the implement by a chain or link.
The implement might take the form of a T, the top, which should be pivoted and
long enough to engage the adjacent spokes, forming a substitute for the hook B of
Fig. 1.
Even the hub or its appurtenances might be utilized if a sufficient length of chain
were provided.
These arrangements are inferior to that shown in Fig. 1, though the result is the
same, and it will be obvious that many modifications of the means described will
effect the required result.
Tyre removers have hitherto been unsatisfactory because no means of automatically
retaining them in their operative position has been provided; nor does it appear to
have been observed that three is the smallest number that will satisfactorily and
easily remove a tyre.
It will now be understood that the essential features of my invention are
(a) The automatic retention of the tyre remover in its operative position thereby
avoiding the necessity for assistance.
(6) The use or application of the implement in sets of three or more.
make no claim to the application of a simple lever, which is merely a substitute
for the tooth-brush; or the groove A which originates in the bend of the spoon
handle.
0
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. Utilizing a part or parts of the wheel to engage suitably prepared parts of an
implement adapted to detach pneumatic tyres of the wired rim class and to hold the
implement against the pull or resilience of the wired rim as and for the purposes
above described.
2. Utilizing the pull or resilience of the wired rim of a pneumatic tyre transmitted
through a suitably constructed implement or tyre remover to a part or parts of the

page_text: wheel thereby automatically holding the tyre and tyre remover as and for the purposes
above described.
3. In implements for facilitating the manipulation of pneumatic tyres the com-
bination of a suitably shaped lever with a hook, clip or equivalent device for the
purposes above set forth.
4. In implements for facilitating the manipulation of pneumatic tyres the com-
bination of a suitably shaped lever with a device for engaging a spoke or spokes for
the purposes above set forth.
Dated this 31st day of January 1898
HUGH SWANTON.