Improvements in Vehicles and Apparatus for Advertising Purposes.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Vehicles and Apparatus for Advertising Purposes.
I, ALGERNON MOSES MARSDEN, of 84, Redcliffe Gardens, South Kensington, in
the County of London, Gentleman, do hereby declare the nature of this invention,
to be as follows:-
My present invention relates to improvements in advertising vehicles or apparatus
for which I obtained Her Majesty's Letters Patent No. 22808, dated 24th November
1894, and it has for its object to simplify the mechanism employed and to render the
same more reliable in its working, especially when the vehicle has to travel over
rough or uneven roads.
To this end, I dispense with the escapement mechanism for controlling the
movement of the rollers and their bands, and also with the clockwork for actuating
such escapement, and I now drive two or more pairs of rollers for shifting the
advertisements, at opposite sides of the vehicle, by one and the same mechanism,
the power for driving such rollers being, as formerly, derived from the means
employed for propelling the vehicle.
In carrying out my invention, I cause one or other of the lower rollers of a pair
to be driven from the main shaft, while the other roller at the opposite side is
revolved through the action of the driven roller by means of an endless chain, or
its equivalent. The rollers are driven intermittently through the medium of a
notched disc, on the main shaft, in connection with a spring lever lifted at short
intervals by a cam mounted on a sleeve on said main shaft.
I further provide improved mechanism for automatically reversing the rotary
movement of the rollers at the required time, and such mechanism advantageously
consists of a cam actuated by a worm and worm-wheel, the worm being mounted
on a counter shaft and receiving motion from the main shaft through suitable
gearing, and a shifting fork being arranged to transmit the motion from the main
shaft to one or other of the pairs of rollers.
To enable each of the top rollers of the pair to take up the slack of the bands
paid out by the lower rollers on their reverse movement, I provide such top rollers
with mechanism adapted to be operated by a coiled spring and so arranged as to
cause such spring to be wound up by the movement of its roller while the band
is being drawn off, and afterwards to cause the roller to revolve in the reverse
direction and so keep the band taut.
I also provide means for effecting the shifting of the bands, when the vehicle
is at rest, and said means may consist of a chain-driving arrangement connected
to the main shaft and operated by a hand lever under the control of the driver, or
other attendant.
With slight modifications the improved mechanism above mentioned may be
applied to the apparatus for exhibiting advertisements on hoardings, as described in
my British Patent No. 22809 of 1894.

page_text: Improvements in venicies and apparatus for Advertising rurposes
I, ALGERNON MOSES MARSDEN, of 84, Redcliffe Gardens, South Kensington, in
the County of London, Gentleman, 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, reference being had to the accom-
panying drawings and to the letters and figures marked thereon, that is to say:-
-
My present invention relates to improvements in advertising vehicles or apparatus
(serving at the same time as a parcel delivery van) for which I obtained Her
Majesty's Letters Patent No. 22808 dated 24th November 1894, and it has for its
object to simplify the mechanism employed and to render the same more reliable
in its working, especially when the vehicle has to travel over rough or uneven
roads.
According to my present improvements, I dispense with the escapement mechan-
ism for controlling the moveinent of the rollers and their bands, and also with
the clock work for actuating such escapement, as thereby the mechanism, when
applied to a wheeled vehicle, will be less liable to suffer injury when travelling.
Besides, escapement mechanism and clock work are delicate, and always liable to
derangement.
I also dispense with the spring barrel and certain of its associate parts, and finally
I improve the entire mechanism, as hereinafter set forth.
The accompanying drawings shew my improved mechanism applied to a wheeled
vehicle, (parcel delivery van) for the intermittent display of advertisements, or the
like, although, with certain modifications, it can be employed for exhibiting
advertisements, or the like, on hoardings, or walls, or in shops, or other establish-
ments.
Fig. 1 is a sectional side elevation, and Fig. 2 a sectional front elevation of a
vehicle provided with my improved means or mechanism, and serving at the same
time as a parcel delivery van.
Fig. 3 is a front elevation, Fig. 4 a plan, and Fig. 5 a vertical cross section of
the mechanism drawn to an enlarged scale.
Figs. 6 and 7 are views taken at right angles to each other and shewing, also to
an enlarged scale, the means for keeping the bands taut, on the upper rollers.
The bands a are, as in my previous arrangement, placed preferably behind glazed
apertures b, and are drawn off the upper rollers and wound on to the lower
ones d, d, the intermittent movement as well as the reversing motion of which
are effected by the mechanism shewn more clearly in Figs. 3, 4 and 5, as will be
hereinafter fully explained.
The main shaft is supported in bearings 2 and 3 and has mounted loosely upon it
mitre wheels 4. These latter are provided with sleeves which extend through the
bearings 2 and form, at their inner extremities, one portion of a pair of clutches 5, 5*,
the other portion of which is adapted to be slidden endwise upon a key or feather
on the shaft 1. The said mitre wheels 4 are permanently in gear with similar
wheels 6 keyed on the shafts of the lower rollers d, so that the upper and lower
rollers of either pair may be driven by the shaft 1 according as which clutch is in
engagement.
A pinion 7 in one with a chain wheel 8, and mounted loose on the shaft 1,
transmits motion, at a reduced speed, to a spur wheel 9, keyed on a counter shaft 10,
and a pinion 11 fast on this countershaft imparts motion to another spur wheel 12
also mounted loose on the shaft 1. Thus the pinions 7 and 11, spur wheels 9 and 12,
and countershaft 10 are all rotated together by the chain wheel 8 which receives

page_text: motion from one of the wheels of the vehicle, or from an independent motor carried
in the vehicle.
The main shaft 1 is ordinarily held stationary by means of a spring-controlled
lever 13 pivoted at one end to the upper part of one of the bearings 3 and engaging
by its free end into a notched disc 14 keyed on said shaft. This lever 13, whose
free end is guided by the upper part of the other bearing 3, is lifted out of engage-
ment at predetermined intervals by means of a cam 15 in one with the spur
wheel 12 and, at the same time, an incline on a face-cam 16 presses a pivoted arm 17
against the pinion 7 and thereby imparts to it and its chain wheel 8 a slight
endwise movement. Said chain wheel has secured to its outer face a disc 18 pro-
vided with a tooth 19 adapted to be brought into contact with a similar tooth
on a disc 20 keyed on the main shaft 1 and so cause it to rotate. A coiled spring
interposed between the discs 18 and 20 forces them apart again, when permitted to
do so, by the face-cam 16 and pivoted arm 17.
For driving one or other pair of rollers, I employ a shifting bar or fork 21 adapted
to engage with the clutches 5, 5*. Said bar or fork is pulled in one direction by
a spring 22, and is moved in the other by a worm 23 on the crank shaft 10 driving
a worm wheel 24 on a shaft 24*. On this shaft is keyed a cam disc 25 so arranged
as to impinge against a pivoted lever 26 which, in its turn, strikes against an
extension 27 on the shifting bar or fork and thus causes this latter to move the
clutch 5 into, and the clutch 5 out of engagement, thereby reversing the direction
of movement of the bands a.
The movement imparted to one of the pairs of rollers by the mechanism above
described is communicated to the other pair by an endless chain 28 and chain
wheels 29. A guide wheel 30 carries this chain above the mechanism and takes
up its slack.
By this arrangement of driving one pair of rollers from the opposite pair, the
bands are caused to move in opposite directions to each other, that is to say one
moves upwards and the other downwards; but by crossing the chain both bands
can be caused to move in the same direction.
To cause the upper rollers to automatically take up the amount of band paid out
by the lower ones, the shafts of the upper rollers are each provided with a pinion 31
adapted to gear with a train of toothed wheels controlled by a spiral spring 32
which is arranged to be wound up by the movement of its roller while the band is
being drawn off therefrom by the lower roller, and which spring afterwards, on
the reverse movement of the bands, rotates the roller and causes it to wind up the
band and keep it always taut.
The upper rollers may be provided with discs at each end to prevent endwise
shifting of the bands.
Assuming the mechanism to be as shewn in Figs. 2 and 3, and the chain wheel 8
to be receiving continuous motion from the driving axle of the vehicle (or from
a motor carried by the vehicle) the working is as follows:-
The chain wheel 8 transmits motion through the train 7, 9, 11, and 12 to the
lifting cam 15, and directly this cam has raised the lever 13 out of engagement
with the disc 14, the incline on the face cam 16 commences to act against the
pivoted arm 17 which then pushes the disc 18 into engagement with the disc 20
and thereupon the rotation of the shaft 1 takes place through the pinion 7. This
motion is transmitted through the clutch 5 and mitre wheels 4 and 6 at an increased
rate to the roller d which is thus caused to move the band a the distance of one
advertisement. By this time the incline on the slow moving cam 16 has released
the arm 17, and the discs 18 and 20 are thrown out of engagement, with each other
by means of the coiled spring before mentioned. The lever 13 being no longer held
by its cam 15 enters the notched disc 14 and holds the shaft 1 stationary until
started again by the next cycle of movements.
This intermittent motion of the shaft 1 and roller d continues until all the
advertisements on the band a have been exhibited. In the meantime the worm 22
has gradually turned the wheel 24 and cam disc 25 and has brought the latter into

page_text: position to act against the lever 26, so causing it to shift the bar or fork 21 endwise
against the tension of the spring 22 and to engage the clutch 5* while disengaging
the other one.
Although the shaft 1 still continues to revolve in the same direction, the move-
ment of the rollers will now be reversed, and the lower roller d which, in the first
instance was driven by the mechanism will now be driven by the opposite roller d*,
the slack in the band being taken up by the upper roller d in the manner already
explained.
When the mechanism is used in conjunction with a vehicle similar to that shewn
in the annexed drawings, I may provide a hand-lever 33 adapted to be brought
into engagement with the wheel 34 which will then transmit motion to the chain
wheel 8 so that when the vehicle is at rest the advertisements may be shifted by
the attendant in charge.
The bands may be illuminated at night either from inside, or outside, the vehicle,
by gas, oil or electricity, and when the vehicle is driven by a motor carried thereby
this latter may be used for the electric lighting.
Although the means or mechanism herein before described are shewn applied to a
wheeled vehicle, it is obvious that I can apply the same to apparatus of the kind
described in the Specification of my Patent No. 22809+ for exhibiting advertise-
ments on hoardings or walls, or in shops, or other establishments, and in such case
I may use but a single set of rollers and employ an ordinary reversing gear in
conjunction with the mechanism herein before described for intermittently rotating
the main shaft; or I may arrange the main shaft to drive first one roller and then,
on reversing, to drive the other roller.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same may be performed I declare that what I
claim is:-
1. In advertising vehicles, the means or mechanism for intermittently displaying
advertisements or the like, constructed and arranged to operate substantially as
herein described.
2. In advertising vehicles, the means or mechanism for driving the rollers carry-
ing the advertisement bands, first in one direction and then in the other, substan-
tially as described and shewn with reference to the drawings.
3. The application to apparatus for exhibiting advertisements on hoardings or
walls, or in shops, or other establishments, of the means or mechanism herein before
described.
4. My improved advertising vehicle and parcel delivery van constructed and
arranged to operate substantially as herein before described and shewn with reference
to the annexed drawings.
שי
ERNEST DE PASS,
Chartered Patent Agent,
78, Fleet Street, London, and 5A, Market Street, Nottingham,
Agent for the Applicant.