A Machine for Displaying Advertisements.
Year: 1895

page_text: Date of Application, 2nd Jan., 1895
Complete Specification Left, 2nd Oct., 1895-Accepted, 30th Nov., 1895
PROVISIONAL SPECIFICATION.
A Machine for Displaying Advertisements.
HENRY WATKINS 26 Clarendon Gardens Maida Vale W. late of 366 Camden
Road N.W. do hereby declare the nature of this invention to be as follows :-
-
Attached to an ordinary clock movement is arranged on the centre pinion a
rachet which allows a lever attached to the locking plate lever to rise gently so
that the motion to the locking plate should release itself suddenly.
7
A lever falls over the rachet by which is obtained the sudden drop so that the
movement is sharp and quick; this lever is connected with the pin wheel of the
clock movement giving the rise according to the number of rachets which deter-
mines the time each movement is required, for instance, if a minute change 60
teeth would be necessary if 3 minutes 20 teeth connected with the wheel fixed on
an axel ring between 2 plates which is fixed to the clockwork so as to give the
direct motion to a pair of bevel wheels. one of which is attached to the pinion
and the other to the shaft of a roller so, that it should drive the roller round in
order to give the movement for an endless curtain to display the pictures or
advertisements.
Two brackets support the top roller for the convenience of moving round,
whilst a second roller is attached to the bottom of the case according to the length
of the curtain and the number of pictures or advertisements required to be
exhibited...
HENRY WATKINS 94 Portsdown Road, Maida Vale W. late of 26 Clarendon
Gardens, Maida Vale Journalist 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:-
--
Attached to an ordinary clock movement is arranged on the centre pinion a
rachet wheel that lifts a lever which rises gradually to the teeth of the rachet
wheel then suddenly dropping strikes the top of a second lever attached to a motor
worked by a spring wound up quite independently of the clock causing a cylindrical
roller to make a revolution every minute. An endless curtain, sewn on one side to
an endless ladder chain which is guided and checked by the toothed wheel of a cog
so as to prevent the curtain from slipping & to keep it in its proper position, runs
on the cylindrical drum, by this means a different picture or advertisement is
displayed through an aperture made in the case of the machine.

page_text: As the teeth of the ratchet wheel A driven by an ordinary clock (not shown)
ride over the blade D the lever B is turned about its pivot C and the hammer E is
raised and then is suddenly released striking the arm F fixed to the shaft G.
The shaft G turns in bearings in the plates H H¹ and has fixed to it a hook K
which retains the pin L on the wheel M. The hook K is kept in the position
shown in the drawings by the spring N and only leaves it when the hammer E of
the lever B strikes the arm F.
The wheel M is fixed to the roller O and is driven through a train of gearing
by the spring motor P.
The endless curtain R on which the advertisements are displayed is carried by
the rollers O and O¹.
These rollers O, O' have toothed wheels S, S' on one side into the teeth of
which gear the ladder chain T, a portion of which is shown in the drawings.
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 machine for displaying advertisements consisting of a curtain driven by a
spring motor, whose movement is controlled by a pivotted lever operated by a
ratchet wheel driven by a clock substantially as described.
2. In a machine for displaying advertisements the combination of a ratchet
wheel driven by a clock with a pivotted lever which tips a stop and allows a spring
motor to turn a curtain a required distance substantially as described.
3. A machine for displaying advertisements substantially as described and
shown in the drawings.
Dated this 2nd day of October 1895