IMPROVE- MENTS IN THE CONSTRUCTION OF WHEELS FOR CARRIAGES AND OTHER VEHICLES
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by Edwin Ambrose Brydges at the Office
"
of the Commissioners of Patents on the 18th March 1881. A communication
by Urban Goetzenbruegger, of the City of Vienna, in the Austrian Empire.
EDWIN AMBROSE BRYDGES, of the Firm of Brydges & Co., Engineers & Patent
Solicitors, of 73, Königgraetzer Strasse, in the City of Berlin and German Empire,
and 6, St. Leonard's Terrace, Upton, in the County of Middlesex. "IMPROVE-
MENTS IN THE CONSTRUCTION OF WHEELS FOR CARRIAGES AND OTHER VEHICLES."
[A communication by Urban Goetzenbruegger, of the City of Vienna, in the
Austrian Empire.]
This Invention relates to that class of wheels for vehicles, the hub of which
consists of several parts which can be easily taken to pieces and put together
again.
In the different devices hitherto invented for this purpose the several parts of
the hub are generally drawn and held together by a number of screw bolts, which
it is a very tedious and slow job to remove when the wheel is to be taken apart,
or when spokes or fellies are to be removed in order to replace them by new ones.
This difficulty it is believed will be obviated by constructing the wheel according
to the present Invention as hereafter explained.
The hub of this wheel may be made either of wood or metal, but preferably of
metal, and chiefly consists of two parts or halves, one part on the outside of
the wheel and the other on the inside next the vehicle.
The outer half of the hub is recessed and provided with a female screw thread
for the reception of a reduced and also threaded part of the inner half of the
hub.
The inner half of the hub is provided with radial slots or recesses corresponding
in number to that of the spokes which the wheel is to contain. These recesses
serve as mortises for the reception of the spokes or spoke tenons, and are of such
depth that when the spokes are inserted the two parts of the hub may be screwed
together face to shoulder.
The spokes have tenons on each end, those intended to fit into the hub being
preferably square, and those to go in the fellies round and somewhat conical in
form. This however is not essential, as the spokes may be used differently tenoned,
or of one thickness throughout without any shoulder, or only tenoned on one end.

page_text: In the hub is fitted a bush provided with a flange, the latter serving to secure the
said bush (which forms the bearing for the axle) to the hub by screws or in any
other suitable manner.
This bush is made somewhat longer than the hub, so that it projects a little on
the other side, permitting if desired a cap or similar device to be fitted upon it.
Through the hub and bush a hole is drilled for introducing lubricants to the
axle.
This hole is kept closed by a threaded stopper or plug or by an equivalent
⚫device.
By the above described arrangement of the wheel and its accessories, it is
obvious that the hub of the same is not subject to any wear whatever, as the flange
of the bush receives the friction against the shoulder of the axle, and the projecting
part of the bush protects the outside part of the hub. Consequently this hub may
be used continuously, and only from time to time, and according to the wear, will
a spoke, bush, or felly require to be replaced. This can be done with ease at any
time or place, even on the road, without taking off the wheel by simply unscrewing
the outer part of the hub by means of a wrench fitting into holes drilled or cast in
the said half, replacing the worn out part by a new one, and again screwing.
tightly together the two halves of the hub.