Driving Gear for Motor Cars with Reversal of Motion.
Year: 1897

page_text: Date of Application, 24th Aug., 1897-Accepted, 9th Oct., 1897
COMPLETE SPECIFICATION.
Driving Gear for Motor Cars with Reversal of Motion.
I, CHARLES DENTON ABEL, of No. 28 Southampton Buildings, Chancery Lane,
in the County of London, Consulting Engineer and Chartered Patent Agent, do
hereby declare the nature of this invention (as communicated to me from abroad
by The Gasmotoren Fabrik Deutz of Kuln-Deutz in the German Empire, Manu-
facturers) and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
This invention relates to driving gear for motor-cars which are driven by a motor
(for example a gas or petroleum motor) which always runs in the same direction.
In such motor cars it has been heretoforo necessary to use wheel gear for reversing
the motion, the wheels of which were put in gear either only for the backward
movement or partly for the forward and partly for the backward movement.
The present invention renders it possible to reverse the motion of the
motor-car without this arrangement, by the use, in addition to the necessary
coupling of the usual parts, of only one pitch wheel on one of the driving shafts
of the car and of a chain guide pulley. A considerable saving of mechanism
is thus achieved.
Fig. 1 of the accompanying drawing shews the motor car in elevation, Fig. 2
in vertical section on lines I, I, II II, of Fig. 1.
On the driving shaft a of the motor A is mounted a friction coupling B which
is worked by a hand lever c. When the parts of this coupling are engaged the
coupling serves to connect the pitch wheel to the shaft a on which it is otherwise
mounted loose. The pitch wheel C is connected by an endless chain with the two
wheels D and E which are mounted loose on the two running axles & and c of the
car, in such a manner that these two wheels turn in opposite directions.
pulley J serves to guide the chain back to the driving wheel C.
The
There are also mounted on the running axles the clutch couplings H H¹ (or
friction couplings) which are actuated by the hand levers h¹ and render it possible
to couple the axles with the loose wheels.
When the clutch coupling H is engaged, the running axle d is coupled with and
carried round by the pitch wheel 1 causing the car to travel forward (to the left
in Figure 2). On the other hand, if the coupling H be disengaged and the
coupling H engaged the running axle e will be coupled to the pitch wheel E,
and as this rotates in the direction opposite to that of D, the car will move back-
wards (to the right in Figure 2).
Since the endless chain between the driving shaft a and a running axle d must
necessarily be used in motor cars, it is only necessary to add the pitch wheel E
with the guide pulley J and the couplings H'H' in order to fit a motor car with the
improved reversing mechanism.
It is advantageous to so connect the levers h h that both couplings H H' can
never be engaged at the same time, or to effect the alternate engagement, of the
two couplings by a single lever; these constructional variations are omitted from
the drawings.

page_text: The driving wheel B can be mounted on a second shaft indirectly driven by
the motor, instead of on the motor shaft.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
Driving gear for motor-cars for changing the direction of motion consisting
of a pitch wheel C always driven in the same direction by a motor, which wheel
drives by means of an endless chain a pitch wheel mounted loose on each running
axle of the car, in such manner that they run in contrary directions, such pitch
wheels being capable of being coupled with their respective axles by means of
couplings such as H H', substantially as described.
ABEL & IMRAY,
Agents for the Applicant.