IMPROVEMENTS IN APPARATUS FOB REGULATING WATCHES AND OTHER TIMERERDEDO "
Year: 1862

page_text: LETTERS PATENT to William Wighton, of the City of Edinburgh,
Watchmaker, for the Invention of "IMPROVEMENTS IN APPARATUS FOB
REGULATING WATCHES AND OTHER TIMERERDEDO
"
PROVISIONAL SPECIFICATION left by the said William Wighton at the
Office of the Commissioners of Patents, with his Petition, on the
14th June 1862.
I, WILLIAM WIGHTON, of the City of Edinburgh, Watchmaker, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN APPARATUS
FOR REGULATING WATCHES AND OTHER TIMEKEEPERS," to be as follows:-
I attach by arms to the ordinary regulator hand a toothed quadrant, and
cause a worm on a spindle to gear into the teeth of the quadrant. The spindle
carries also a click or ratchet wheel, into the teeth of which a spring is made
to drop, the spindle terminates on the outer end in a square, and is moved by
an' ordinary watch key. By turning the spindle the regulator hand is moved
to or fro over the ordinary scale according to the direction in which it is
turned: The spring entering the teeth of the ratchet or click wheel retains
the regulator in the position at which it was set until the spindle is again
turned.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Wighton in the Great Seal Patent Office on the
13th December 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
WIGHTON, of the City of Edinburgh, Watchmaker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourteenth day of June, in the year of our
Lord One thousand eight hundred and sixty-two, in the twenty-fifth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said William Wighton, Her special licence that I, the said William
Wighton, my executors, administrators, and assigns, or such others as I,
the said William Wighton, 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 "IM-
PROVEMENTS IN APPARATUS FOR REGULATING WATCHES AND OTHER TIME-
KEEPERS," upon the condition (amongst others) that I, the said William
Wighton, 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 William Wighton, do hereby declare
the nature of my 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, reference being had to the Drawings hereunto annexed, that
is to say:
I attach by arms to the ordinary regulator hand a toothed quadrant, and
cause a worm on a spindle to gear into the teeth of the quadrant. The
spindle carries also a click or ratchet wheel for dividing the shifts, into the
teeth of which a spring is made to drop at each shift with an audible click.
The spindle terminates on the outer end in a square, and is moved by an
ordinary watch key or other suitable instrument. I prefer that the teeth on
the quadrant should be similar to those on a worm wheel.
Figure 1 of the accompanying Drawings is a plan, and Figure 2 a per-
spective view, of this apparatus for regulating watches and other timekeepers.

page_text: a is the quadrant attached by arms a', a', to a circle, from which the
regulator hand 6 springs. The outer edge of the quadrant is finely toothed
similarly to the teeth on a worm wheel, and is geared into by a worm c on a
spindle d. e is the ratchet or dividing wheel on the spindle d, and f is the
spring taking into the teeth thereof. By turning the spindle d the regulator
hand 6 is moved to or fro over the ordinary scale, according to the direction in
which it is turned. The spring f entering the teeth of the ratchet wheel e,
gives an audible click and retains the regulator in the position at which it was
set until the spindle is again turned.
The apparatus just described can be put into action without opening the
watch, and for this purpose the spindle d may be carried through the case.
Each watch or other timekeeper to which the apparatus is applied is or may
be supplied with a scale to indicate the number of turns necessary to effect any
given variation of time, whereby the regulation is effected with mechanical
exactness.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim as my "Improve-
ments in Apparatus for Regulating Watches and other Timekeepers," the
combination with an ordinary regulator hand of a toothed quadrant
acted upon by a worm in manner and for the purposes herein-before
described.
In witness whereof,, I, the said William Wighton, have hereunto set
my hand and seal, this Eleventh day of December, One thousand eight
hundred and sixty-two.
WILLIAM WIGHTON. (L.S.)