Year: 1887

page_text: Date of Application, 16th May, 1887
Complete Left, 16th Feb., 1888
Complete Accepted, 23rd Mar., 1888
I SAMUEL WALKER of 21 South Road Waterloo in the County of Lancaster, Watch
Manufacturer, do hereby declare the nature of this invention to be as follows:-
The object is to provide watches to go for a period exceeding one day preferably
eight which shall be as reliable timekeepers as ordinary one day watches, and which
shall be so constructed as to obtain the desired result without increased size or
complication of parts.
The invention relates to improvements on British Letters Patent No. 1794 of the
1868 granted to me, and consists essentially in the combination of a train of wheels
such as is therein described directly with a going barrel without the intervention of a
fuzec. The going barrel is of increased size and is sunk into the pillar plate and
potance plate or bar and contains a spring of such length and tension that only inter-
mediate turns of the barrel are used for giving motion to the train.

page_text: I SAMUEL WALKER of 21 South Road Waterloo in the county of Lancaster Watch
Manufacturer 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 :-
The object is to provide watches to go for a period exceeding one day preferably
eight, which shall be as reliable timekeepers as ordinary one day watches and which
shall be so constructed as to obtain the desired result without increased size or
complication of parts.
The invention relates to improvements on British Letters Patent No. 1794 of the
year 1868 granted to me, and consists essentially in the combination of a train of
wheels such as is therein described directly with a going barrel without the
intervention of a fuzee. The going barrel is of increased size and is sunk into the
pillar plate and potance plate or bar and contains a spring of such length and tension
that only intermediate turns of the barrel are used for giving motion to the train.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a view looking on the potance plate and fig. 2 a view in the same direction
with the potance plate removed of a full plate watch constructed in accordance with
my invention.
a potance plate b pillar plate, e balance wheel cock these parts are
connected in any usual manner. main spring or going barrel of increased diameter
and thickness and sunk into the pillar and potance plates and bar. The main spring
or going barrel is provided with teeth e which take into a pinion on the second
wheel The second wheel of gears into a pinion on the third or centre wheel g by
which motion is imparted to the minute and hour hands in any usual manner. The
centre wheel g gears with a pinion on the fourth wheel h and the fourth wheel h gears
with a pinion on the fifth or second's wheel i. The second's wheel i gears with the
'scape wheel j, k lever, balance wheel. The train above described is advantageously
geared as follows-main-spring barrel 72 teeth, second wheel 60 teeth, pinion 12,
third or centre wheel 60 teeth, pinion 12, fourth wheel 64 teeth, fifth or seconds wheel
60 teeth, pinion 8, and 'scape wheel 18 teeth pinion 8. The numbers of teeth in the
wheels and pinions may be varied but it is desirable that the train should be so made
that the 'scape wheel has not less than 15 teeth nor more than 20 teeth. It will be
observed that the barrel overlaps the pinion on the centre wheel extending as far as the
arbor. Fig. 3 is a view of a three quarter plate watch constructed in accordance with
my invention the potance plate being removed. Fig. 4 is a view of the potance plate
and fig. 5 a view of the pillar plate. The train is similar to that above described and
the same letters denote like parts the main difference being that the third wheel is not

page_text: in the centre thus permitting of the use of a main spring or going barrel of very
large diameter. Motion is given to the minute and hour hands by means of wheels
and pinions on the dial side of the pillar plate in gear with a pinion on the second
wheel arbor.
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.
Watches having a train of wheels driven by means of a going barrel disposed and
operating substantially in the manner and for the purpose set forth.