Improvements in and connected with Watch Barrels.
Year: 1889

page_text: Date of Application, 4th Oct., 1889
Complete Specification Left. 22nd Mar., 1890-Accepted, 21st June, 1890
PROVISIONAL SPECIFICATION.
Improvements in and connected with Watch Barrels.
I, JOHN BURK, Watchmaker, of 29 Commercial Road, Bedford, in the County
of Bedfordshire, do hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in and connected with watch barrels to
prevent damage to going barrel watches on the breaking of the mainspring, and to
allow the barrel to be removed from the movement without displacing the top plate
or dial.
The barrel and barrel bar are constructed in one piece for the purpose of fixing, and
into this said barrel I place the main spring.
The driving wheel and barrel arbor aro attached to each other with the ratchet
wheel and click work.
The barrel and barrel bar fit over the barrel arbor and the driving wheel, the
said barrel being secured to the top plate of the watch with two screws passing
through the bar.
The bottom of the barrel arbor under the driving wheel is pivoted to work in the
bottom plate of a watch.
Dated this 4th day of October 1889
JOHN BURR,
Applicant.
COMPLETE SPECIFICATION.
Improvements in and connected with Watch Barrels.
1, JOHN BURB, Watchmaker, of 29 Commercial Road, Bedford, in the County
of Bedfordshire, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particully described and ascertained in and by the
following statement :-
1
My invention relates to improvements in and connected with watch barrels, to
prevent damage to going barrel watches, on the breaking of the mainspring, and to
allow the barrel to be removed from the movement without displacing the top plato
or dial.
And in order that my invention may be thoroughly understood, I now proceed to
describe the accompanying drawings thereof, reference being had to letters and figures
marked thereon.
Figure 1 represents the front view of the barrel bar a, and the barrel / described in
dotted lines showing the position of the barrel, with portions of the ratchet and
driving wheels exposed to view. The barrel and bar a are constructed in
one piece.
Figure 2 denotes the side elevation of figure 1.
dotted lines in this figure.
The click work is indicated by
Figure 3 is the underside view of the driving wheel b, with a slot i, and a small
adjusting pin on the ratchet wheel projecting into the said slot, this pin being a
maintaining power as indicated by dotted lines, and fitted to the driving wheel to
keep the watch going whilst being wound up as in an ordinary "Fusee" watch.
The circnlar key plate h, on the barrel arbor, revolves when the click work is in
motion.
Figure 4 represents the side view of the barrel arbor d, and screw hole j, to fix the
end of the spring, and pivot g, with the ratchet c, and driving wheel b, removed from
the barrel f.

page_text: The barrel f, and barrel bar a, are constructed in one piece for the purpose of
fixing, and into this said barrel 1 place the main spring.
The barrel arbor d and the steel ratchet wheel c with clickwork as in figure 5 are
attached to each other, and are held together by means of a steel ratchet m, fitting tight
on the barrel arbor underneath the steel ratchet wheel c, (or rivetted together), which
ratchet m, works in the two clicks n, n, on steel ratchet wheel c, as indicated by
figure 5, and by dotted lines in figures 2, and 4.
The usual maintaining spring is put between the driving wheel 6 and the ratchet
wheel c.
The driving wheel b is held up to the steel ratchet wheel con barrel arbor, by
means of a small steel key plate which is fitted on the barrel arbor, and secured
with a steel pin going through the steel key plate and the said barrel arbor, or by
rivets. The barrel f, and barrel bar a, fit over the barrel arbor d, and the driving
wheel b; the said barrel being secured to the top plate of the watch with two
screws passing through holes e, e, in the bar a. The bottom of the barrel
arbor under the driving wheel is pivoted at g, to work in the bottom plate of a
watch. The mainspring is attached to the arbor at j.
The object of my invention is to prevent damage to the movement in case
of the main spring breaking and the operation is carried out as follows:-
The barrel and barrel bar being screwed to the plate of the watch, and the outer
end of the main spring being hooked to the inside of the barrel, allows the spring to
be wound up by turning the barrel arbor, the said barrel arbor and driving wheel
being attached together with click work, prevents the sharp jerk, or rebound, of the
driving wheel, when the mainspring breaks. The barrel is removed by withdrawing
the fixing screws from the holes e, e, in the barrel bar.
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 :-
First The combination of the apparatus fitted to a watch to prevent damage to
the movement in case of the main spring breaking, substantially as herein described
and according to the accompanying drawings.
Secondly The combination of the apparatus to wind the same way as a "Fusee"
watch without additional arbor or wheels, substantially as herein described.
:
Thirdly The apparatus can be removed from the watch to replace a broken
spring by a new spring, without taking the watch to pieces, substantially as
described.
Dated this 22nd day of March 1890.
J. P. BAYLY,
18, Fulham Place, W., Agent for the Applicant.