Year: 1897

page_text: I, WILLIAM DAVIDSON, of Mills of Clola, Mintlaw, in the County of Aberdeen,
Miller, do hereby declare the nature of this invention to be as follows:-
This invention which relates to self propelling or motor road vehicles has for its
object the provision of improved arrangements of driving gear in vehicles adapted
for carrying heavy loads. The vehicle itself may be of the ordinary wagon or like
form the lower or wheel framing of which carries a hydrocarbon or other engine
which is connected by means of improved gear to drive either or both of the running
wheels at one end of the vehicle. The driving engine is carried horizontally in
the framing and its connecting rod is connected to act directly on a vertical
crank shaft running in suitable bearings and supported at the lower end in a foot
step bearing formed by an axle framing extending cross wise under the vehicle
and having its ends suitably formed to receive the road wheels which are fitted to
turn freely on the axle. On the crank shaft is keyed a large horizontal disc wheel
having formed in it an annular recess wherein run two friction pulleys on the
lower ends of vertical shafts. The upper ends of these shafts are fitted with bevel
pinions in gear with bevel wheels on two horizontal shafts arranged to drive
the road wheels which are internally toothed and gear with pinions on the
horizontal shafts. The vertical shafts which carry the friction driving wheels
or pulleys are fitted in bearing blocks which are free to slide horizontally and
are operated by a hand lever or levers so that the friction pulleys or either of them
may be thrown into and out of frictional driving contact with the outer rim part
or the central boss part of the main disc wheel and be thus driven in one direction
or the other. Thus the outward movement of both friction pulleys into contact
with the rim will cause the road wheels to be turned in one direction to propel the
vehicle forwards, their inward movement into contact with the central disc boss or
hub effects propulsion in the reverse direction, and the movement of a single pulley
to either side imparts a turning motion to the vehicle, the driving engine being in
every case run continuously in the same direction.
800
a
1007
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents,
int Vincent Street, Glasgow, Agent for the Applicant.

page_text: improvements in Self Propelling Road Vehicles.
I, WILLIAM DAVIDSON, of Mills of Clola, Mintlaw, in the County of Aberdeen,
Miller, 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:.
This invention which relates to self propelling or motor road vehicles has for
its object the provision of improved arrangements of driving gear in vehicles
adapted for carrying heavy loads.
As represented in the accompanying drawings in which Figure 1 is a plan and
Figure 2 a transverse vertical section to a larger scale, the vehicle itself if of
the ordinary wagon or like form the lower or wheel framing A of which carries
a hydrocarbon or other engine B which is connected by means of improved gear to
drive either or both of the running wheels C at one end of the vehicle. The
driving engine B is carried horizontally in the framing A and its connecting
rod D is connected to act directly on a vertical crank shaft E running in suitable
bearings and supported at the lower end in a foot-step bearing F formed by an
axle framing G extending cross-wise under the vehicle and having its ends g
suitably formed to receive the road wheels C which are fitted to turn freely on the
axle G. On the crank shaft is keyed a large horizontal disc wheel H having
formed in it an annular recess wherein run two friction pulleys I on the lower
ends of vertical shafts J. The upper ends of these shafts J are fitted with bevel
pinions K in gear with bevel wheels L on two horizontal shafts M arranged to
drive the road wheels C which are internally toothed and gear with pinions N
on the horizontal shafts M. The vertical shafts J which carry the friction driving
wheels or pulleys I are fitted in bearing blocks O which are free to slide horizontally
and are operated by a hand lever or levers P and connecting links Q so that the
friction pulleys or either of them may be thrown into and out of frictional driving
contact with the outer rim part h or the central boss part h¹ of the main disc wheel H
and be thus driven in one direction or the other. Thus the outward movement of
both friction pulleys I into contact with the rim h will cause the road wheels C
to be turned in one direction to propel the vehicle forwards, their inward movement
into contact with the central disc boss or hub ¹ effects propulsion in the reverse
direction; and the movement of a single pulley I to either side imparts a turning
motion to the vehicle, the driving engine B being in every case run continuously
in the same direction.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
A self propelled road vehicle the operative parts of which are constructed,
combined and arranged to operate substantially as described.