Improvements in Means for Displaying and Mounting Revolving. Tablets for Advertising and other similar Purposes.
Year: 1893

page_text: Date of Application, 10th Jan., 1893
Complete Specification Left, 8th Nov., 1893-Accepted, 16th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in Means for Displaying and Mounting Revolving.
Tablets for Advertising and other similar Purposes.
FREDERICK JOHN BEAUMONT 37 Stockwell Park Crescent Brixton S.W.
Electrical Engineer. I do hereby declare the nature of this invention to be as
follows:-
--
My invention relates to an improved method of causing tablets to revolve in such
a manner as to cause the said tablets to be exposed successively at such intervals as
may be required.
In order to carry out this invention I provide a drum or central rod mounted in
suitable bearings resting on a frame and fixed thereto.
On this drum I hinge a number of tablets in such a way that they are free to
move on their hinges as far as the drum and the adjacent tablets allow.
At one end of the drum or centre I place a ratchet wheel, which may form the
end of the drum itself when a suitable drum is used, & which in other cases is
mounted on the axis of the sd. drum and rigidly attached thereto.
This ratchet is moved by a pawl attached to a lever pivoted at the centre of the
drum or in some other suitable position, so that on moving the free end of the lever
in one direction the ratchet is moved forward by the pawl engaging with the teeth
of the sd. ratchet and the drum is moved round a certain distance. When the lever
is returned to its original position the pawl glides over the teeth of the ratchet and
a suitable stop pawl placed on the frame of the machine prevents the drum being
moved back on the return of the lever.
In place of the lever and pawl I may use a rack & pinion or other suitable
mechanism to cause the tablets to revolve.
When the drum is placed horizontally, the tablets at a certain point of its
rotation overbalance & fall forward, thus exposing their surfaces alternately
to view.
In order to provide for the tablet falling at the right moment I place on the
frame an arm having a projection at one end provided with a spring or roller which
retains the tablet in position until it reaches the required point.
Where it is required to expose four tablets at once or place the drum in a vertical
position so that some or all of the tablets will not fall by gravity I provide each
tablet with a spring, one end of which is fixed to the drum and the other rests
against the tablet in such a way that the spring is compressed as the tablet
approaches the above mentioned arm and on the tablet being released it is forced
the required distance by the spring. In addition, where four tablets are to be
exposed I provide another arm similar to and for the same purpose as that already
mentioned.
In order to cause the drum to rotate I attach the free end of the above mentioned
lever by means of a cord wire or rod, or other suitable connection, passing over
pullies or working in guides where such are necessary, to the source of power, which
may be a door, the lever of a brake or anything having a movement suitable for
the purpose.
In cases where the lever is not caused to return to its original position by the
motive power itself or the action of gravity, I provide a weight or spring to effect
this, one end of the spring being attached to the lever & the other to some fixed
point about the machine. I also provide a suitable stop on the frame of the
machine for the said lever to strike against to prevent the drum being rotated more
than the required distance at one stroke.

page_text: I also, where necessary, connect the rod or cord to the source of power through
the medium of a spring of sufficient strength to rotate the drum but capable of
yielding after the lever has struck the stop.
In cases where the initial power does not act in the right direction to move the
lever I connect the rod or cord to the sd. lever by means of suitable bell cranks or
other levers. I may also allow the pawl to rotate the drum on the return stroke of
the lever.
I can also work the above machine by means of water, where it is not desirable
to use a moving rod or cord.
In order to effect this I provide a suitable bag or bellows connected by a pipe
with another bag or bellows and provided with a suitable expansion chamber or
safety valve to provide for the water not required to work the machine. I place
one of the said bags under a suitable plate attached to the lever of the machine and
the other in such a position that the water will be expelled from it, when required,
to work the machine. I may substitute for either or both of the bags or bellows a
cylinder & piston, the piston rod being connected to the aforesaid lever in the one
case and the second piston rod being connected to the moving object by which the
machine is to be worked.
In order that the tablets may be easily removed or changed I provide means for
withdrawing the pins on which they are hinged; as, for example, by making the
rods at one end of the drum rest in teeth like spaces on the circumference of that
end of the drum and keeping them in position by a moveable ring or by affixing a
disc to one end of the drum and allowing the holes in which the hinge pins work
to penetrate the end disc of the drum completely, so that on removing the disc the
rod can be withdrawn & the tablets removed.
F. J. BEAUMONT.
COMPLETE SPECIFICATION.
Improvements in Means for Displaying and Mounting Revolving
Tablets for Advertising and other similar Purposes.
I FREDERICK JOHN BEAUMONT of 37 Stockwell Park Crescent Brixton
Surrey Electrical Engineer 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 :-
My invention relates to an improved method of causing the tablets to revolve in
such a manner as to cause the said tablets to be exposed successively at such
intervals as may be required.
This invention relates principally to machines of the kind described in my
previous Specification numbered 14183 and dated the 5th day of August 1892
wherein a number of tablets are caused to fall successively on the rotation of a
drum the said tablets being held in position by a suitable projecting arm until a
point is reached at which they are required to fall. And although the improve-
ments herein described may be applied to other machines of a like nature I will
describe my invention with reference to the machine to which the aforesaid
Specification relates.
When it is desired to expose four tablets of the above mentioned machine at
once or place the drum in a vertical position so that all or some of the tablets will
not fall by gravity I provide each tablet with a spring one end of which is fixed to
the drum and the other rests against the tablet in such a manner that the spring is
compressed as the tablet approaches the above mentioned arm and on the tablet
being released it is forced the required distance by the spring. In case four tablets
are to be exposed I provide another arm or projection similar to and for the same
purpose as the one already mentioned.
In the accompanying drawings Fig. I represents the arrangement of the springs
& tablets.

page_text: a is the axle on which the drum rotates, B is one end of the said drum having on
its periphery a number of holes to receive the hinge pins 6 of the tablets C, h is a
spring coiled round the hinge pin b having one of its ends resting against the drum B
and the other against the tablets C. Q is an arm attached to the framework of the
machine which is preferably provided with a roller Q.
The operation of this part of my invention is as follows-as the drum rotates the
springs are compressed by the tablets C being retained by the arm Q and on one
of the tablets being released the spring / expands and forces it into the position
required. I have shown in the drawing two arms for retaining the tablets in
position but it is obvious that one only or more may be employed according to the
number of tablets it is required to expose at once.
In order that the tablets may be easily removed or changed I provide means for
withdrawing the pins on which they hinged for example by making the rod at oue
end of the drum rest in teeth like spaces on the circumference of the end of the
drum and keeping them in position by a moveable ring or by affixing a disc to one
end of the drum and allowing the holes in which the hinge pins work to penetrate
the end of the drum completely so that on removing the disc the hinge pins can be.
withdrawn.
Figs. 2, 3 & 4 of the accompanying drawings show the above mentioned methods
of removing the tablets. In Figs. 2 & 3 the disc or end plate B has teeth like
spaces in which the hinge pins b rest. A cap c is arranged to fit over the end of
the said drum B so as to retain the rods in position and this cap is held in its place
by screws g or other suitable means. Thus in order to change a tablet it is only
necessary to remove the cap c².
In Fig. 4 the tablets C rest on the hinge pins b the ends of which project through
the end plate B thus allowing the hinge pins to be easily withdrawn and the disc c
preferably provided with a groove k to receive the projecting hinge pins is fixed by
screws or other suitable means to the end plate B. Thus in order to withdraw a rod
it is only necessary to remove the disc c.
The machine described in my previous Patent of Aug. 4th 1892 numbered 14183
may also be worked by water in place of gas or air but in this case it is necessary
to provide an air chamber in connection with the pistons or bellows into which the
surplus water not required to work the machine may be forced and thus any undue
pressure on the pistons bellows or connecting pipes may be obviated.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
First. In a machine having a rotating drum, moved by compressed air or other-
wise, and tablets attached thereto the combination of springs to move the tablets
forward and a retaining arm or stop substantially as described.
Second. In a machine having a rotating drum, moved by compressed air or
otherwise, and tablets attached thereto the combination of the teeth like spaces and
a removeable end cap substantially as and for the purposes specified.
Third. In a machine having a rotating drum moved by compressed air or
otherwise and tablets attached thereto the combination of a removeable end plate
and projecting hinge pins substantially as and for the purposes specified.
Fourth. The improved apparatus consisting of the parts constructed and
combined substantially as described with reference to the accompanying drawings
and operating as & for the purposes specified.
8th November 1893.
F. J. BEAUMONT.