IMPROVEMENTS IN WATCHES
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by the said William Williams at the
Office of the Commissioners of Patents on the 20th September 1883.
WILLIAM WILLIAMS of Bolton Street, Bury, in the County of Lancaster Watch
Manufacturer "IMPROVEMENTS IN WATCHES
"
The object of this Invention is to register a distinct eighth, tenth, or twelfth
part of a second for timing races, counting the revolutions of machinery, or for
similar purposes. The desired number of beats to be given is determined by the
number of teeth in the fourth wheel, the intermediate wheel and the escapement
wheel. Thus in a watch timed to register twelve beats in one second I have sixty
teeth in the fourth wheel, forty teeth in the intermediate wheel and twelve teeth
in the escapement wheel. For a watch to mark ten beats in the second the fourth
wheel will have sixty teeth, the intermediate wheel forty teeth, and the escapement
wheel ten teeth. For a watch to register eight beats in a second I have sixty
teeth in the fourth wheel, forty teeth in the intermediate wheel and eight teeth in
the escapement wheel. The numbers for the pinions are ten and eight teeth
respectively.
The dials are marked for twelve beats 720 for the hand going once round in a
minute; 600 for ten beats, and 480 for eight beats in the second. For the small
finger making one revolution in two seconds, or as required the dial is marked to
register each beat or part of a second.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Williams in the Patent Office on the 20th March 1884.
WILLIAM WILLIAMS of Bolton Street, Bury, in the County of Lancaster, Watch
Manufacturer, IMPROVEMENTS IN WATCHES
"
"
The object of this Invention is to make a watch to register a distinct eighth, tenth,
or twelfth part of a second for timing races, counting the revolutions of machinery
and for other purposes
I employ between the fourth wheel and the escapement pinion an intermediate
wheel and it is by the division of the teeth and pinions on these wheels that the
desired number of beats is determined. For instance if I want a watch to beat
twelve times in a second I have forty teeth in the intermediate wheel and ten
teeth on its pinion, while on the escapement wheel I have twelve teeth and eight
teeth on its pinion. For a watch to beat ten times in a second I have forty teeth
on the intermediate wheel with ten teeth on its pinion and an escapement wheel
of ten teeth with eight teeth on its pinion. For a watch to beat eight times in a
second I use an intermediate wheel of forty teeth with ten teeth on its pinion and
an escapement wheel of eight teeth with a pinion likewise of eight teeth. In all
the above cases the fourth wheel has sixty teeth. The fourth wheel is placed in
its usual position and gears into the pinion of and thereby drives the intermediate
wheel which in its turn gears into the pinion of the escapement wheel and gives it
motion.
The dials are painted each to agree with whatever beat the watch is made to
mark, thus for a watch timed to beat the twelfth part of a second the dial is
marked for 720 beats for the hand going once round in a minute, while the small
hand shews a distinct twelfth part of a second. For a watch to shew ten beats in
a second the dial is marked for 600 beats while the small hand shews a distinct
tenth of a second. For a watch to beat the eighth part of a second the dial is
marked for 480 beats while the small finger shews a distinct eighth of a second.
Although I have above described the best mode I am acquainted with of carrying
my Invention into practice I am aware that similar results may be obtained by
different arrangements of the teeth of the wheels and pinions but not with equal
advantages to those described.
The ordinary stop motion is applied to my watches and by its means I am
enabled to stop and start a watch at any eighth, tenth, or twelfth of a second
according to the make of the watch.
I Claim
The making or manufacturing a watch timed to beat and shew distinctly on the
dial the eighth, tenth, or twelfth parts of a second of time as hereinbefore described
In witness whereof I the said William Williams have hereunto set my hand
and seal this eighteenth day of March in the year of our Lord One thousand eight
hundred and Eighty four.
Signed Sooled and Delivered by the \
WILLIAM WILLIAMS (1.8)
WILLIAM WILLIAMS (LS)
Signed Sooled and Delivered by the 】
within named William Williams
' in the presence of
G. SEPTIMUS HUGHES
Patent Agent
Manchester.