An Improved Motor-van.
Year: 1896

page_text: Date of Application. 16th Dec., 1896-Accepted, 20th Mar., 1897
COMPLETE SPECIFICATION.
An Improved Motor-van.
I, JOHANN GEISENHOF, of Landsberg, Bavaria in the Empire of Germany,
Manufacturer, 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 :-
In the annexed drawing Fig. 1 is a side view with section through the motor
and seat box and Fig. 2 is a plan view with section through the motor etc. of a
motor van, the characteristics of which are the following. Its load floor is quite
free, the motor parts are all arranged under the same, the motor lies transversely
to the same and is fixed with its side parts on the longitudinally running frame
bars and finally the carriage has a peculiar construction of a (friction) propulsion
with means of adjustment as well as a ventilated cooling water receiver.
The motor a is here constructed as four cylinder motor and the cylinders are so
arranged, that each pair lies parallel to the other and that both pairs stand opposite
one another in such a manner, that the four pistons operate upon a common crank
shaft b, which is provided on the front with a fly wheel c. By this arrangement
there is obtained on the one hand great power and on the other hand the motor
can be arranged transversely to the carriage, whilst the crank shaft lies in the
longitudinal axis of the carriage. This motor differs from all other systems in the
fact that it is fixed or hung on each side at a single point so that in cases, in
which by greater unevenness of the road the parallelogram of the carriage wheel
rails and the floor carrying frame bars is momentarily deranged in consequence
of the pressure of the load and inclination to one side of a part of the carriage
the motor may not be deranged or strained but may give to such movements.
The transmission of force from the motor to the carriage wheels is effected
through the disk d upon the shaft band by the friction disk e touching it first
to the shaft and from here by means of chains and chain wheels g to the carriage
wheels. The disk d and friction disk e which are shown on a larger scale in Fig. 3
are so regulated and combined with the brake lever that the removing of the disk
and the braking of the carriage wheels is effected by hand in one single operation.
The disk d is movable with its hub on the axle b and held from revolving thereon
by the feather b. In front of the disk d upon the non rotating axle lies a
pressure roller i, revolving thereon. This bipartite axle surrounds a hub of the
disk d and is journalled at the ends by means of vertical carriers (not shown in
the drawing) as well as horizontal arms k and serves for moving the disk d forwards
and backwards. The rotation of the same by means of the shaft is therefore not
disturbed by the axle & lying transversely to it. Its forward and backward movement
is effected by means of the eccentrics surrounding the latter axle and the rod
connected thereto which is fixed at the front to the brake lever m. If the latter is
pulled a little in the direction of the arrow, the rod and the eccentrics are pulled or
turned forwards and the axle h with the rollers i is thereby pressed back, so that it
presses the disk d strongly on the friction disk whereby the revolution is communicated
to the same and thus to the wheels of the car however when the lever m is pressed
forwards in the direction of the two arrows, the rod l and the eccentrics h' are moved
back and thereby the axle is moved a little forwards, so that it puils the disk d by
means of the friction of its hub sleeve d' from the friction disk and stops the

page_text: transmission. This movement of the disk d is extremely small and is sufficient to
effect communication or interruption between 6 and. The pressure rollers i forms
the support for the pressure of the disk d and turn with the latter. On the brake
lever m above its turning point is fixed also the brake rod a for the carriage brake n'
which thus on the displacement of the lever receives a movement which is opposite
to that of the rod I and which while pressing disk d on roller e pulls the brake back
but on withdrawing the disk d from roller e it presses the brake on the carriage wheels.
It is thus possible to give any degree of brake pressure and also to suddenly stop the
carriage. One can however also change at pleasure the velocity of the motion and
this is effected by turning the wheel o correspondingly. The latter is fixed upon the
tube o' which at the underpart engages by a bevelled gearing with the shaft p. From
the latter the motion is transferred to the shaft q and from the latter to the screw
spindler. On the latter engages the arm s which forks the hub of the friction roller e
without hindering it in its rotation. According to the revolution of the wheel o.
the spindler is moved in the one direction or the other and the arms is thus moved
to and fro so that it pulls the roller e which is connected by the feather' with its
axle, to and fro on the latter and causes it to approach the centre of the disk d or its
periphery. In the first case the rotation of roller e and of the carriage wheels is
retarded and in the latter case it is accelerated. When the roller is brought to the
centre of disk d and then passes to the other side, the carriage is moved in the opposite
direction after having stopped. One is therefore able to control the motion of the car,
its braking, velocity and change of direction completely and easily from the seat as
well as the steering of the car, that is of the front wheels which are operated by gear
from the hand wheel & constructed in any manner; in the present case the steering is
effected by a novel device in respect of which a separate application for patent has
been made of even date herewith.
In the seat case lies the cooling water receiver u which at the under part is recessed
semi-circularly and under which is placed the flywheel c of the shaft 6 provided with
paddles, so that the water is continuously cooled and renewing on account of
evaporisation is not necessary for a long time. Next to this receiver is the receptacle e
for benzine, petroleum or the like "materials developing explosive gases. It is
surrounded with a jacket o' and between the latter and reservoir u is a communication,
so that the benzine receiver is surrounded by water from the cooler for the motor.
This offers the advantage, that the benzine or the like is previously warmed by the
water always considerably warmed by continual cooling of the motor and hereby a
better and securer evaporization is effected.
From the receiver the tube we provided with a valve leads to the motor and by
means of the handle a the valve can be regulated from outside at pleasure. The tube
connection with the motor, the lighting which takes place in the chambers z and all
the other organs necessary for a motor which are already generally sufficiently known
in the construction of motors, are not indicated in the drawing and it may only be
mentioned that in consequence of the above described arrangements in this carriage,
when the stoppage is only a short one, one can after having separated disks d and e
let the motor continue to run free or one can put it out of operation for completely
stopping the working by closing the valve w.
Having now particularly described this invention and in what manner the same
is to be performed I declare that what I claim is :-
In a motor van.
(1.) A transversely arranged motor a hung laterally with several cylinders with a
crank shaft & lying in the middle line of the carriage, which shaft is provided with
a disk d movable on the shaft and (in combination with other bearings, for instance
the arms s) carries an axle h provided with pressure rollers i and eccentrics '
which axle by means of the rod and the eccentrics influenced by the brake
lever m presses the disk d on or moves it from the friction roller transferring the
revolution to the carriage wheels.
(2.) A friction roller movable on its axle by means of an arm s, the to and fro

page_text: movement of which disk is effected by a screw spindle operated by the hand
wheel t.
(3.) The construction of the fly wheel c of the crank shaft bas a paddle wheel
and the arrangement of the water receiver serving for cooling the motor over this
fly and paddle wheel in order to diminish the heat of the water therein by current
of air.
(4.) A jacket v' in connection with the water receiver u and arranged round the
benzine or petroleum or the like receptacle r for the purpose of previously warming
the latter by heat from the water in the receiver u.
Dated this 16th day of December 1896
HERBERT HADDAN & Co.,
18, Buckingham Street, Strand, London, Agents to Applicant.