IMPROVE- MENTS IN WATCHES
Year: 1867

page_text: LETTERS PATENT to Samuel Harrison, of West Street, Warwick, in the
County of Warwick, Watch Maker, for the Invention of "IMPROVE-
MENTS IN WATCHES."
Sealed the 11th October 1867, and dated the 13th April 1867.
PROVISIONAL SPECIFICATION left by the said Samuel Harrison at the
Office of the Commissioners of Patents, with his Petition, on the 13th
April 1867.
I, SAMUEL HARRISON, of West Street, Warwick, in the County of Warwick,
Watch Maker, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN WATCHES," to be as follows:-
The object of this Invention is to increase the duration of the driving
power and time, so that the watch may keep time for about nine days with
once winding it up.
In carrying these improvements into effect, first, the watch is made in the
ordinary way with one wheel extra in connection with the fuzee, and hollow
in the back of the plate a little deeper under the dial to receive the extra
barrel.
Secondly, the watch may have one or more extra spring barrels.
Thirdly, the barrel between the plates has the arbour in two parts; one
part is rivetted to the bottom of the barrel to go through the plate, the other
part is fitted in the barrel with a pivot at the bottom, and fits in the part just
described, which is rivetted to the bottom of the barrel, so that each part of

page_text: the arbour or arbours, when more than one barrel is used, works a separate
spring, and thus gives the watch the increased power. On the top end of the
arbour, & outside the plate, I fit a ratchet wheel and click, by means of which
I regulate the adjustment of the spring.
Fourthly, the third spring and barrel is fitted to the bottom of the fuzee
arbour in the same way as the one to the barrel arbour, already described under
the third head; this gives one more additional power to the watch, so that a
watch so fitted has three times the power of an ordinary thirty-hour watch.
The third spring just described on the fusee arbour is intended to protect the
chain from breaking, as the other two springs need not be so strong; the
two barrels under the dial have ratchet teeth to set up the springs with two
clicks.
In another improvement I propose to make the watch without a fuzee; in
this case I fit it with four mainsprings and two barrels ; these two barrels are
made like the two which are fitted under the dial of the watch, described
under the third head above; the other two springs are let into the top plate
instead of being fitted with barrels. This arrangement will make the watch
very flat; the clicks and ratchets are fixed on the arbours and wheels
between the plates for winding; this can be made to wind with one or two
squares.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Samuel Harrison in the Great Seal Patent Office on the
12th October 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
HARRISON, of West Street, Warwick, in the County of Warwick, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirteenth day of April, in the year of our Lord One
thousand eight hundred and sixty-seven, in the thirtieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the
said Samuel Harrison, Her special licence that I, the said Samuel Harrison,
my executors, administrators, and assigns, or such others as I, the said Samuel
Harrison, 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

page_text: Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
WATCHES AND OTHER SIMILAR TIMEKEEPERS," upon the condition (amongst
others) that I, the said Samuel Harrison, 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 Samuel Harrison, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
This Invention relates to watches and other timekeepers actuated by spring
power, and consists of improvements for rendering the said watches and time-
keepers capable of going for eight or nine days with once winding up, as
explained in my Provisional Specification dated the 13th April 1867, which
improvements I now proceed to describe more particularly, reference being
made to the accompanying Drawing to which the following explanation

page_text: which the pivot on Fig. 4 fits as a centre. It will thus be seen that by
winding up the barrel the springs fixed to hooks p and rare wound up
together. Figs. 6 & 7 are an enlarged elevation and plan of the additional
spring barrel (b, Fig. 1); there is a hole in the under side into which the
arbour on Fig. 5 fits.
I also apply the method of obtaining additional power to watches or other
timekeepers having no fuzee; in doing this I fit four or more springs in pairs,
as shewn in Figs. 4, 5, and 6, and instead of having a fuzee, two going barrels
are introduced to work in the pinion of the extra wheel j, Fig. 3; the two
barrels are planted where the ordinary fuzee and barrel are usually planted;
everything else is the same as in the fuzee watch, improved as herein-before
described. The additional barrels are planted under the pillar plate, as shewn
inverted in Fig. 1.
In witness whereof, I, the said Samuel Harrison, have hereunto set my
hand and seal, this Twelfth day of October, in the year of our Lord
One thousand eight hundred and sixty-seven.
SAMUEL HARRISON. (L.S.)