IMPROVEMENTS IN RAILWAY AND OTHER CARRIAGE WHEELS BY THE APPLICATION OF VULCANISED INDIA-RUBBER OR ANY COMPOUND THEREOF
Year: 1870

page_text: PROVISIONAL SPECIFICATION left by William Aubrey Chandler at
the Office of the Commissioners of Patents, with his Petition, on
the 14th June 1870.
I, WILLIAM AUBREY CHANDLER, of 79, Sun Street, Bishopsgate
Street, in the City of London, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN RAILWAY AND OTHER CARRIAGE WHEELS BY
THE APPLICATION OF VULCANISED INDIA-RUBBER OR ANY COMPOUND THEREOF," to be
as follows:-
My Invention consists, firstly, in perforating the tyres of railway
carriage or other wheels at certain intervals with apertures of any
shape or size, & inserting therein any compound of vulcanised india-
rubber, so that the pieces of india-rubber compound may project (any
distance which may be found expedient) beyond the surface of the tyre,.
& the flange (in railway wheels) to be made deeper, if necessary, to
prevent the possibility of the wheels leaving the rails. The pieces of
india-rubber compound may either be pressed in cold by a machine “
similar to a corking machine, or they may be poured in hot; in either
case the perforations may be continued into or through the felloe if
nccessary.

page_text: Secondly. In perforating the tyres as above described and interlacing
through the perforations either a solid or hollow india-rubber band
(vulcanized) or any compound thereof.
Thirdly. In placing a vulcanised (or other compound of) india-rubber
tyre on the iron tyre, either by stretching it on or otherwise, &
retaining it in its place either by bolts or plugs of the same or any harder
material going through the india-rubber tyre into holes made for the
purpose in the iron tyre and extending into or through the felloe if
necessary.
Fourthly. In slightly undercutting the flange of the wheel and
placing a vulcanised (or other compound of india-rubber tyre, over the
iron tyre into the undercut of the flange, and preventing the india-rubber
tyre from slipping off by a plate (either entire or in section) of the
same shape as the wheel, and screwing it against the edge of the india-
rubber tyre, so that the latter shall project beyond the plate about half
an inch, more or less, and yet be of sufficient thickness to be retained in
its place without making the said plate project beyond the surface of
the tyre, in fact a slice may be said to be cut off the wheel and then
screwed on again.
Fifthly. (And this process is more especially suitable to carriages
running on ordinary roads), in placing a vulcanised (or other compound
of) india-rubber trough-shaped cover made in fitting sections over the
iron tyre of the wheels, so that the sides of each trough-shaped section
may fit on to each side of the felloe and be fixed on, either by flat headed
nails or by small screw bolts going through the felloe, or with plugs of:
hard or soft vulcanised india-rubber, or in any other manner that may be
found expedient; the trough-shaped sections may either fit, closely to
each other, so as to form a continuous tyre, or they may be placed at
intervals.
The advantage I claim for this latter Invention is that the india-rubber a
does not require to be stretched on as in the ordinary method, &
consequently that the chances of cutting the india-rubber are much
reduced.