Improvements in or connected with Motor Driven Street Vehicles and the like.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in or connected with Motor Driven Street Vehicles
and the like.
I, RUDOLF EGG, of 51, Stampfenbach Strasse, Zürich, in the Republic of
Switzerland, Mechanician, do hereby declare the nature of this invention to be
s follows:-
The object of the present invention relates to motor car or street vehicle with
motor action, by which the power is transmitted from the motor shaft to the
riving wheel axle in such a manner that a belt from a pulley keyed on the
motor shaft may be caused to run upon any one of three belt pulleys fixed close
together, of which the centre one acts as a loose pulley, while the two side pulleys
may transmit power in a different ratio of transfer by high and low gearing
respectively to the said driving wheel.
In the accompanying drawing there is illustrated for example in sectional
plan a form of such an apparatus as carried into practice, wherein however on
account of its simplicity, only the special parts which come under consideration
in the invention are depicted.
It is advantageous to fix the axle g, carrying in the well known manner the
rotating guide wheels R' and R2 in front on the vehicle and indeed the same
forms a part of the frame of the vehicle, in which the motor M and the driving
wheel R are mounted. This frame consists principally of four parallel longi-
tudinal bars g³gg³ and two parallel cross bars gg; these are so connected
with one another, as to form a large exterior rightangled frame g g²g'g³, in
which the members gg with parts of g and g form a smaller, inner likewise
rightangled frame. This inner frame gggg is divided by a rigid cross bar g
into two parts G1 G2, in the former of which the motor M is mounted, while the
driving wheel R is placed in the latter, the axle w being fixed about in the
middle of the space on the armis g³g in bearings . For the sake of lightness
the above mentioned members of the frame are fornied of tubes and the same are
connected to one another by corner or angle pieces in the manner shown.
The
The cylinder m of the motor M, which is an explosion motor, is firmly screwed
by its rear end to the frame member g, while it lies with its front end upon a
supporting cross piece g to which it is fastened in any suitable manner.
shaft w of the motor is fixed on the longitudinal members g³g in bear-
ings and carries between the bearings and a broad belt pulleys and
on the other end, projecting over the bearing 1, a flywheel n.
Upon the axle wl of the driving wheel R two spur wheels are keyed, one
on cach side of the bearing 1, the former of which has a larger diameter than
the latter. These spur wheels 1 and 2 engage two pinions and which
are fixed upon an intermediate shaft w2, one on each side of the arm, g³, the
former of which, the smaller 3, is fast to the shaft w2, while the latter, the
larger, is loose upon the shaft. Upon this shaft 2 which is mounted in
bearings 576 upon the arms g² g³ are placed three belt pulleys s' and ³ close

page_text: together between said bearings, which pulleys are capable of being driven by the
shaft of the motor, by means of the belt pulleys and the belt so. The former
of these pulleys s¹ is fixed to the shaft 2, so that when in motion by the aid
of this pulley the wheels, which form gearing for the slow movement are
capable of being set in action. The latter of these pulleys is loose upon the
shaft and firmly connected to the pinion 4, by being formed rigid or in one
piece with the hub of the said pulley.
Thus when in action, by shifting the belt on to the pulley 3, the gearing 42
for the quicker movement is brought into action. The centre pulley 2, which
is loose upon the shaft between the pulleys sl and s³ serves as a loose running
pulley. The shifting of the belt from one pulley to the other can be effected
in any suitable manner as for example, by a fork etcetera adjustable from a
suitable place by any known means.
Dated this 14th day of June 1898.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.
..
Improvements in or connected with Motor Driven Street Vehicles
and the like.
I, RUDOLF EGG, of 51, Stampfenbach Strasse, Zürich, in the Republic of
Switzerland, Mechanician, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
The object of the present invention relates to motor car or street vehicle with
motor action, by which the power is transmitted from the motor shaft to the
driving wheel axle in such a manner that a belt from a pulley keyed on the
motor shaft may be caused to run upon any one of three belt pulleys fixed close
together, of which the centre one acts as a loose pulley, while the two side pulleys
may transmit power in a different ratio of transfer by high and low gearing
respectively to the said driving wheel.
In the drawing accompanying the Provisional Specification there is illustrated
for example in sectional plan a form of such an apparatus as carried into practice,
wherein however on account of its simplicity, only the special parts which come
under consideration in the invention are depicted.
It is advantageous to fix the axle g, carrying the guide wheels R1 and R2
capable of being turned in the well known manner in front on the vehicle and
indeed the same forms a part of the frame of the vehicle, in which the motor M
and the driving wheel R are mounted. This frame consists principally of four
parallel longitudinal bars gggg and two parallel cross bars gg¹; these are
FO connected with one another, as to form a large external- rectangular
frame gggg, in which the members with parts of g and g¹ form a smaller,
inner likewise rectangular frame. This inner frame gggg is divided by a rigid
cross bar g into two parts GG, in the former of which the motor Mis
mounted, while the driving wheel R is placed in the latter, the axle w being
fixed about in the middle of the space on the arms g³g in bearings. For
the sake of lightness the above mentioned members of the frame are formed of
tubes and the same are connected to one another by corner or angle pieces gin
the manner shown.
The cylinder m of the motor M, which is an explosion motor, is firmly screwed
by its rear end to the frame member g, while it lies with its front end upon a

page_text: The
supporting cross piece to which it is fastened in any suitable manner.
shaft w of the motor is fixed on the longitudinal members ggg in bear-
ings and carries between the bearings and a broad belt pulleys and
on the other end, projecting over the bearing, a flywheel n.
Upon the axle of the driving wheel R two spur wheels are keyed, one
on each side of the bearing, the former of which 4, has a larger diameter
than the latter 2. These spur wheels and engage two pinions and
which are fixed upon an intermediate shaft w² one on each side of the arm g³,
the former of which, the smaller, is fast to the shaft 2, while the latter,
the larger, is loose upon the shaft. Upon this shaft which is mounted
in bearings upon the arms g²g³ are placed three belt pulleys 1, 2 and
close together between said bearings, which pulleys are capable of being driven
by the shaft of the motor by means of the belt pulleys and the belt. The
former of these pulleys s' is fixed to the shaft so that when in motion by
the aid of this pulley the wheels, which form gearing for the slow movement
are capable of being set in action. The latter of these pulleys is loose upon
the shaft and firmly connected to the pinion +, by being formed rigid or in
one piece with the hub of the said pulley s³.
Thus when in action, by shifting the belt on to the pulley 3, the gearing
for the quicker movement is brought into action. The centre pulleys, which
is loose upon the shaft between the pulleys sand, serves as a loose running
pulley. The shifting of the belt from one pulley to the other can be effected
in any suitable manner as for example, by, a fork etcetera adjustable from a
suitable place by any known means.
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:
1. A motor driven three-wheeled street vehicle in which the motor cylinder
and driving wheel are mounted between two longitudinal frame bars, the bear-
ings for the motor crank shaft and the driving wheel shaft being arranged on
these longitudinal bars, substantially as described.
2. A motor driven three-wheeled street vehicle in which the motor cylinder
and driving wheel are mounted in a frame having essentially four longitudinal
members or bars, in such a way that the motor cylinder and driving wheel lie
between the middle members whilst in the outer spaces between the other
members there are mounted the flywheel of the motor and the belt pulleys trans-
mitting the movement from the motor crank shaft to the driving wheel axle
substantially as described.
8. A motor driven three-wheeled street vehicle in which the motor cylinder
and driving wheel are mounted between two longitudinal bars of a frame and
in which the driving is transmitted from the motor shaft to the driving wheel
axle by a belt running from a pulley mounted on the motor shaft (which is
carried in two longitudinal bars) on to three belt pulleys arranged close together,
the centre one of which acts as a loose pulley whilst the two side pulleys are
connected with the driving wheel axle also mounted in the longitudinal bars
of the frame, each by means of gearing having different ratios of transfer,
substantially as described.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.