IMPROVED MEANS AND APPARATUS FOR EXHIBITING ADVERTISEMENTS
Year: 1870

page_text: LETTERS PATENT to Thomas Drummond, of Bow Street, in the County
of Middlesex, for the Invention of "IMPROVED MEANS AND APPARATUS
FOR EXHIBITING ADVERTISEMENTS.”
Sealed the 16th May 1871, and dated the 18th November 1870.
PROVISIONAL SPECIFICATION left by the said Thomas Drummond at
the Office of the Commissioners of Patents, with his Petition, on the
18th November 1870.
I, THOMAS DRUMMOND, of Bow Street, in the County of Middlesex, do
hereby declare the nature of the said Invention for "IMPROVED MEANS AND
APPARATUS FOR EXHIBITING ADVERTISEMENTS," to be as follows:-
This Invention relates to improved means and apparatus for exhibiting
advertisements, so as to give great publicity thereto. For this purpose
the advertisements intended for public exhibition in accordance with my
Invention are mounted, printed, painted, or otherwise displayed upon a
travelling endless sheet or surface mounted upon rollers actuated by
suitable mechanism in order to impart a continuous or intermittend
movement in a vertical or horizontal direction to the travelling endless
sheet or surface upon which the advertisements are displayed.

page_text: The rollers upon which the travelling endless sheets or surfaces
(carrying the advertisements to be exhibited in accordance with my
Invention) are mounted may be actuated either by hand or by weights,
springs or other motive power so as to impart a slow continuous or
intermittend movement to the endless travelling sheet or surface mounted
thereon.
SPECIFICATION in pursuance of the conditions of the Letters Patent,.
filed by the said Thomas Drummond in the Great Scal Patent Office
on the 18th May 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
DRUMMOND, of Bow Street, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighteenth day of November, in the year
of our Lord One thousand eight hundred and seventy, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Thomas Drummond, Her special licence
that I; the said Thomas Drummond, my executors, administrators, and
assigns, or such others as I, the said Thomas Drummond, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
MEANS AND APPARATUS FOR EXHIBITING ADVERTISEMENTS," upon the condition
(amongst others) that I, the said Thomas Drummond, my executors or
administrators, by an instrument in writing under my, or their, or one of
their hands and seals, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Seal Patent Office
within six calendar months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said Thomas Drummond, do hereby
declare the nature of the said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by
the following statement thereof, that is to say :-

page_text: This Invention relates to improved means and apparatus for exhibiting
advertisements so as to give great publicity thereto. For this purpose
the advertisements intended for public exhibition in accordance with my
Invention are mounted, printed, painted, or otherwise displayed upon a
travelling endless sheet or surface mounted upon rollers actuated by
suitable mechanism in order to impart a continuous or intermittent
movement in a vertical or horizontal direction to the travelling endless
sheet or surface upon which the advertisements are displayed.
The rollers upon which the travelling endless sheets or surfaces
(carrying the advertisements to be exhibited in accordance with my
Invention) are mounted may be actuated either by hand or by weights,
springs, or other motive power, so as to impart a slow continuous or
intermittent movement to the endless travelling sheet or surface mounted
thereon.
Figure 1 shows a front view; Figure 2 a plan, and Figure 3 an end
view of apparatus suitably arranged for exhibiting advertisements in
accordance with
my Invention.
a is a travelling endless sheet or surface made of canvas or other
suitable material upon which the advertisements to be exhibited are
mounted, printed, painted, or otherwise displayed. The endless sheet a is
mounted upon rollers a', a², which in the arrangement shown are actuated
by the descent of the weight 6 suspended upon the cord c, one end of
which is fixed at c¹, and after passing over the pulley c² the other end of
the cord is fastened to the drum d fixed upon the axis d³, the cord c
being wound upon the drum d to raise the weight 6 by means of a winch
handle placed upon the square end of the axis d¹. The ratchet wheel d
on the axis & gives motion by pawls or drivers e¹ to the toothed wheel e
turning loose on the axis d, the toothed wheel e takes into and drives a
pinione fixed on the axis f upon which is fixed the toothed wheel f¹
which takes into and drives the toothed wheel or pinion as fixed on the
axis of the roller a³, so as to give motion thereto.
The speed of the apparatus is regulated by a break in the following
manner (or by means of a fan as is well understood) :-The toothed

page_text: wheel f¹ takes into and drives a pinion g¹ on the axis y upon which is
fixed the toothed wheel g² which takes into and drives the pinion h¹ on
the axis h upon which is fixed the disc or friction pulley i, upon which
a friction pulley j carried by the adjustable arm j¹ constantly presses,
the pressure of which can be regulated as required.
In place of actuating the apparatus by means of a weight as previously
described a spring barrel may be employed or it may be actuated by
hand or other motive power.
Having thus described the nature of my Invention and the manner in
which the same is carried into practice, I would have it understood that
I do not confine myself to the exact details herein described; but what
I claim is, the arrangement of an endless travelling sheet or surface upon
which a series of advertisements are printed, painted, or otherwise dis-
played, motion being communicated to such endless travelling sheet,
substantially in the manner herein described and shown in the Drawing
hereunto annexed or by other suitable mechanical means.
In witness whereof, I, the said Thomas Drummond, have hereunto
set my hand and seal, this Seventeenth day of May, in the year
of our Lord One thousand eight hundred and seventy-one.
Witness,
J. G. TONGUE,
Patent Agent,
THOMAS DRUMMOND. (L.S.)
34, Southampton Buildings,
Chancery Lane.