IMPROVEMENTS IN LOCOMOTIVE ENGINES
Year: 1876

page_text: PROVISIONAL SPECIFICATION left by William Morgan-Brown at the Office
of the Commissioners of Patents on the 13th April 1876. A communication
from abroad by John Robert Johnson, of 13, Rue Gaillon, Paris.
WILLIAM MORGAN-BROWN, of the Firm of Brandon and Morgan-Brown, En-
gineers and Patent Agents, of 38, Southampton Buildings, London, and 13, Rue
Gaillon, Paris. "IMPROVEMENTS IN LOCOMOTIVE ENGINES."
These improvements consist-
Firstly. In providing locomotives with means of lateral direction by adapting
under the fixed framing of the locomotive on which the boiler and engines are
usually attached (when steam is the motive power used) a swivelling frame, to
which one of the driving axles and wheels, as well as its engine, are fixed. This
framing being jointed with the fixed framing at the point of intersection of the
axis of the framing and that of the axle.
The engine employed can be of any appropriate construction, with the usual.
accessory parts, the only ecception being the connection of the steam pipe to the
boiler, for which purpose the same is passed through an aperture made in the two
frames, where they are united, or in other cases the pipe is connected directly with
the boiler, making use of swivel jointed pipes or stufting boxes, or both.
According to another arrangement each driving axle is provided with a
swivelling frame, one or both being furnished with a motive-power engine, and in
such case I prefer marrying the two frames together in such a manner that the
swivelling motion of the one is imparted to the other, and vice versa, for this latter
purpose I prefer extending both frames backwards towards one another until they
meet, forming such rear parts according to a circle struck from the respective
swivelling points as a centre, and they are connected where they come in contact
with one or more teeth or other mechanical equivalents.
Secondly. In providing such locomotives with a band mechanism for obtaining
the requisite lateral deviation, for which purpose ou the outer faces of the swivelling
frames is adapted a curvilinear rack, in which gears a pinion attached to the lower
extremity of a vertical shaft, the upper extremity of which is provided with a hand
wheel, by rotating which the swivelling frame with the axle are deviated to any
angle required for the service of the wheels on the rails.
Thirdly. In a novel arrangement of parts for the purpose of transmitting rotary
motion from one axle or shaft to another, whilst allowing them to be brought
closer together or further apart, and also to change their angular position with
[Price 2d 1

page_text: reference one to the other; this system is applied in the first case to impart the
rotary motion of the driving axle to the ordinarily uncoupled axle of a locomotive,
and in the second case to drive both axles of a locomotive directly with one
cylinder. According to the first arrangement there is interposed midway between
the two axles of a locomotive an intermediate oscillating organ, such as an upright
double lever, hung at its centre on a pin attached to the fixed framing of the
engine and the outer extremity of the connecting rod of the driving axle is
attached to the upper extremity of this oscillating lever, and in a similar manner
to its lower extremity the outer extremity of the connecting rod of the second
axle. According to the second arrangement, instead of hanging the upright
oscillating lever to the fixed framing of the engine it is attached to the piston rod
of an engine the to-and-fro motion of which thus imparts simultaneous rotary
motion to both axles, and in such cases the engine is attached to the fixed framing
of the locomotive.
Fourthly. In constructing a connecting rod of two or more parts attached
· together end to end by bolts and nuts, or other appropriate parts, and in inter-
posing at each of such junctions a pad of india-rubber or other appropriate elastic
substance.