IMPROVEMENTS IN WHEELS FOR LOCOMOTIVES AND OTHER VEHICLES
Year: 1882

page_text: LETTERS PATENT to Raphael Hunter Brandon, of No. 1, Rue Laffitte, Paris,
"
in the Republic of France, Engineer and Patent Agent, for an Invention of
IMPROVEMENTS IN WHEELS FOR LOCOMOTIVES AND OTHER VEHICLES."
A communication by Alfred Cottrau, of Naples, Italy, Civil Engineer.
PROVISIONAL SPECIFICATION left by the said Raphael Hunter Brandon
at the Office of the Commissioners of Patents on the 7th March 1882.
RAPHAEL HUNTER BRANDON of No 1 Rue Laffitte Paris in the Republic of
France Engineer and Patent Agent. "IMPROVEMENTS IN WHEELS FOR LOCOMOTIVE
AND OTHER VEHICLES." A communication from Alfred Cottrau of Naples Civil
Engineer.
The object of this Invention is to provide wheels especially applicable as
locomotive driving wheels constructed with two tires of varying diameter-the
whole forming one single piece. The novelty of the Invention resides in the fact
that a locomotive wheel can thus be made to run upon two different railroads and
travel at a slow or at a fast rate. The Drawing hereto annexed contains 2 Figures
each embodying my Invention. In Fig 1 the axle is supported by outside bearings
or journals and in Fig 2 the axle is supported by inside bearings crank pins being
fixed outside of the driving wheels for receiving motion from outside engines.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Raphael Hunter Brandon in the Great Seal Patent Office on the
12th August 1882.
RAPHAEL HUNTER BRANDON of No 1 Rue Laffitte Paris in the Republic of
France Engineer and Patent Agent. "IMPROVEMENTS IN WHEELS FOR LOCOMOTIVES
AND OTHER VEHICLES." A communication by Alfred Cottrau of Naples Italy,
Civil Engineer.
The object of this Invention is to employ in locomotives, wheels having two tires
constructed in one single piece, in order that the whole should be completely
solidary and form one single indeformable piece. The novelty of the system
consists essentially in the fact of having devised a locomotive wheel such as to be
able to run upon two different railroads.
From the Drawing hereto annexed, it will be seen that the tire of smaller
diameter must be placed on the outside and the tire of larger diameter on the
inside, viz-in the longitudinal axis of the railway, so as to allow of changing
the worn tires without taking the wheels off the axles.
The advantage of this Invention is that of allowing locomotives, by means of
these wheels, to run either at a great or at a slow speed. And if possibly others
had already imagined to employ locomotives with wheels of different diameters,
the novelty of the system would not be lessened, as it consists first in constructing
both wheels of different diameters, in one single piece, so as to obtain one single
wheel having two tires; second in placing the tires of smaller diameter at the
outside of the smaller-gauged railroad, as clearly indicated in the two Figures of
the accompanying Drawing.
Among the various applications of this Invention there will be that of allowing
the use of the same rolling-stock (engines, carriages, & trucks) upon two lines of
railway having two different gauges.
Having thus fully described the said Invention as well as the best means I am
acquainted with for putting the same into practice, I claim:-
First: the main driving and non-driving wheels of locomotives and also any
other wheels of locomotives, carriages, and trucks for railways and tramways,
constructed as above described and shewn in the accompanying Drawing.
Second: The construction of these said wheels, whether cast or forged in one
piece with the tires or having a form different from that which is represented in
the accompanying Drawing, the said Invention consisting in applying to a single
and same wheel, two tires of different diameters, the smaller one being placed on
the outside.
In witness whereof I the said Raphael Hunter Brandon have hereunto set
my hand and seal this Eighth day of August in the year of our Lord One
thousand sight hundred and sightv two at Paris in the Republic of France.
Witnesses,
HUGO FAHR,
HENRY MÉA.
R. H. BRANDON. (L.S.)