Improvements in Electrical Locomotives or Traction Engines.
Year: 1888

page_text: Date of Application, 29th Aug., 1888
Complete Specification Left, 29th May, 1889-Accepted, 29th June, 1889
PROVISIONAL SPECIFICATION.
Improvements in Electrical Locomotives or Traction Engines.
1, AUGUSTE SANDRON of Menin in the Kingdom of Belgium, Engineer, do hereby
declare the nature of this invention to be as follows:-
The present invention relates to improvements in electrical locomotives or traction
engines.
Two beams or girders one on each side constitute the frame for the dynamo and
the support for all parts requiring a fixed and rigid support. To these beams are
fixed the axle boxes by means of lugs or projections formed on the axle boxes and
engaging in seats or sockets rivetted to the said beams.
The dynamo is placed between the two axles of the vehicle and carries on its axle
two pinions which communicate their movement to the axles of the vehicle by means
of spur wheels mounted thereon. The said pinions are provided on each side of their
bosses with conical cups, the inner ones of which engage with fixed cones keyed to
the axle of the dynamo while the outer cups engage with cones which slide
longitudinally on the axle but turn with it. These latter cones are under the influence
of springs by means of rods acting on cross-pieces arranged or placed in slots formed
in the axle of the dynamo.
By means of this arrangement the train or vehicle is started gradually while the
dynamo can turn at its normal or maximum speed the moment the current is sent
through. The current may be transmitted from accumulators or from any other
suitable current generator. The pressure of the said springs on the friction coupling
cones can be regulated by cains operated by rods from a hand wheel.
The two axles of the wheels are connected by means of a cross piece on which rests
the carriage spring on the body of the vehicle.
The vehicle is further provided with a self-acting brake arrangement working by
means of friction coupling cones similar to those of the dynamo.
The cone feathered on the axles is placed in contact with a sleeve which is placed
into contact with the fixed or rigid cone by means of a forked lever. The sleeve is
provided with two cheeks or flanges traversed by a steel pin to which a steel cable
is fixed which acts instantaneously on the brake blocks no matter in what direction
the axles turn.
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COMPLETE SPECIFICATION.
Improvements in Electrical Locomotives or Traction Engines.
AUGUSTE SANDRON of Menin, in the Kingdom of Belgium, Engineer, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement :-
The present invention relates to improvements in electrical locomotives or traction
engines.
The accompanying drawings represent a vehicle provided with an electro-motor
and adapted for the transport of loads on railways or ordinary roads, figs. 1 and 2
being respectively a side clevation and a plan of the under part of such vehicle,
fig. 3 a transverse section and fig. 4 a sectional view showing the arrangement of
the friction couplings on the dynamo shaft.

page_text: Two beams or girders A A' fig. 2, one on each side constitute the frame for the
dynamo C and the support for all parts requiring a fixed and rigid support independent
of the elastic suspension of the body of the vehicle. To these beams are fixed the
axle boxes by means of lugs or projections B B₁ formed on the axle boxes and
engaging in seats or sockets rivetted to the said beams, thus leaving to these beams
and the frame carrying the driving mechanism sufficient liberty to yield to all
unevenness of the road without any damaging offect on the driving mechanism.
The dynamo C is placed between the two axles of the vehicle and carries on its
axle two pinions D D which communicate their movement to the axles of the vehicle
by means of spur wheels S S' mounted thereon.
The latter are driven therefore direct from the dynamo shaft which is at the time
the driving shaft and coupling shaft.
The said pinions D D as shown clearly in fig. 4 are provided on each side of their
bosses with conical cups, the inner ones E' of which engage with fixed cones
keyed to the axle of the dynamo, while the outer cups E E' engage with cones e which
slide longitudinally on the axle but turn with it. These latter cones are under the
influence of springs F, F, by means of rods G, G acting on cross-pieces H, Hì
arranged or placed in slots formed in the axle of the dynamo.
By means of this arrangement the train or vehicle is started gradually while the
dynamo can turn at its normal or maximum speed the moment the current is sent
through. The current may be transmitted from accumulators or from any other
suitable current generator.
The pressure of the said springs F, F1 on the friction coupling cones can be regulatod
by cams I, I, operated by rods from a hand wheel.
By the arrangement of the dynamo between two pairs of driving spur wheels,
as used in this construction, these wheels are coupled without any intermediate
parts.
Having now described and ascertained the nature of the said invention and in
what manner tho same is to be performed I declare that what I claim is :-
In electric locomotives or traction engines the direct and adjustable coupling of the
shaft of the motor with the driving wheels, and of the driving wheels with each other,
obtained by mechanism such as the pinions D, D¹, and spur wheels SS, cones E¹ E²,
E E, the cross pieces H H¹, rods G G2, springs F F', and cams II, the whole con-
structed and operating substantially in the manner and for the purpose described and
illustrated in the accompanying drawings.
Dated this 28th day of May 1889.
W. P. THOMPSON & BOULT
Agents.