An Improved Lever for Detaching Pneumatic Tyre Covers and for Replacing the same.
Year: 1897

page_text: TROYISHUA AL SITOLNICATION,
An Improved Lever for Detaching Pneumatic Tyre Covers and for
Replacing the same.
NICHOLAS VOICE, IA. Carfax. Horsham, Sussex, Manufacturer, do hereby
declare the nature of this invention to be as follows:-
This invention consists of a T or L shaped lever the two arms of which are
pivotted together made in such manner that the cross price can be passed behind
the spokes of the wheel while removing the cover of the tyre thus facilitating
the operation without injury to the cover or tyre.
Doiad this 16th of October 1807
An Improved Lever for Detaching Pneumatic Tyre Covers and for
Replacing the same.
1. NICHOLAS Voick, of No. 1a. Carfax, Horsham, in the County of Sussex,
Manufacturer, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be quarticularly described and ascertained in and
by the following statement:-
This invention has for its object to provide an implement for detaching from
and replacing the covers of pneumatic tyres onto rims of velocipede and like
wheels and consists of a T or L shaped lever the cross piece or head of which is
pivotted to the blade or long arm of the lever and adapted so that the said cross
piece or head can be turned so as to form a continuation of the blade or long arm.
To use the instrument for detaching the cover of a tyre the end of the blade or
long arm is inserted beneath the wire by which the cover is secured and the
cross piece or head is then turned on the pivot so as to engage with one of the
spokes of the wheel thereby keeping the raised wire out of the groove in the
rim to admit of the insertion of a bar beneath the wire which bar may then be
passed or worked round the rim of the wheel so as to remove the said wire and
so release the cover.
Figure of the drawings represents an elevation of the improved device or
implement. Figure 2 is an edge view of the same and Figure 3 shews its applica-
tion to the wheel. A is the long arm or blade of the lever and the cross piece
or head.
The end of the lever A. is turned up as shewn a a which turned up end is

page_text: inserted beneath the wire'b of the cover after which the lever is pressed down
'so that the cross piece or head B, which is pivotted at e to the blade or long
arm A, can be turned to engage with one of the spokes of the wheel as shewn in
Figure 3.
To detach the cover, a bar of any suitable description can be inserted beneath
the wire and be worked or passed round the rim of the wheel so as to detach
the wire from the groove in the rim and so release the cover.
To replace the cover, as much as possible of the wire is placed in the groove
of the rim by the fingers and the wire is then wholly forced into the groove by
engaging the turned up end of the lever A with the rim under the projecting
portion of the wire so that by raising the said lever the wire can be readily
prized into the groove in the rim and thereby secure the cover thereto.
Having now particularly described and ascertained the nature of this in-
vention and in what manner the same is to be performed I declare that what
I claim is:―
For use in applying and removing the covers of pneumatic tyres a device con-
structed substantially as herein described and illustrated by the accompanying
drawings.