Safety Pinion for the Improvement of Barrel Going Watches.
Year: 1893

page_text: Date of Application, 21st Aug., 1893
Complete Specification Left, 14th Mar., 1894-Accepted, 19th May, 1894
PROVISIONAL SPECIFICATION.
Centre Safety Pinion for the Improvement of Barrel Going
Watches.
GEORGE WAKEMAN Watch Maker Town of Berkeley County of Gloucester do
hereby declare the nature of this invention to be as follows:-
It consists of a pallet, designed to prevent injury, to the teeth of wheels, and
breakage of pivots of barrel going watch's, by main spring breaking. With this
pinion no damage can be caused, to delicate parts of such watch's. It can be
applied to present barrel going watch's, without alteration in the number of teeth
of wheels or pinions.
A. Shewing pallet with spiral spring.
B. Opposite end of pallet shewing gearing teeth.
C. Steel plate with holes to receive gearing teeth of pallet.
D. Pallet shewing shape of gearing teeth.
E. Complete pinion in sections shewing steel plate fixed to centre arbor, pallet
to plate, spring in position on pallet, nut screwed to keep all in place. When main
spring breaks it will reverse freely backwards until power of spring is spent.
Dated this 21st day of August 1893.
COMPLETE SPECIFICATION.
Centre Safety Pinion for the Improvement of Barrel Going
Watches.
GEORGE WAKEMAN Watch Maker High Street Berkeley Gloucestershire 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 :-
It consists of a pallet designed to prevent injury to the teeth of wheels and
breakage of pivots of barrel going watches, by main spring breaking. With this
pinion no damage can be caused to the delicate parts of such watches. It can be
applied to present barrel going watches without alteration in the number of teeth
of wheels or pinion.
Dividing centre pinion in three parts, viz.: arbor, plate, and hollow pinion, the
leaves of pinion forming gearing teeth, by which it connects itself with holes in
plate C and two attachments riz.: spiral spring & nut. The whole to connect with
each other and form one working piece.
In order that my invention may be easily understood and carried into practice, I
have appended a sheet of drawings, shewing its application in working form. See
drawings left with Provisional Specification.
A. Shewing pallet or pinion of ten leaves with spiral spring in position.
B. Opposite end of pallet shewing gearing teeth, every other leave of pinion
elongated and pointed to form such teeth.
C. Circular steel plate with five holes to receive gearing teeth of pallet.
D. Pallet shewing shape of gearing teeth.
E. Complete pinion in sections, shewing plate C fixed to centre arbor, pallet to
plate C-spiral spring in position on pallet, nut screwed on arbor to keep working
parts in place. When the watch is working in the ordinary way, the teeth of

page_text: pallet will be locked tightly in the holes of plate C. But immediately the main
spring breaks, it will reverse and simply revolve on the face of plate, Ċ until the
power is exhausted. There is no danger of its getting out of order, it is always
ready and effective, for protecting the delicate parts of watches, as explained
above.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner it is to be performed, I declare that what I claim is.
The introduction of a hollow pallet or pinion formed to enable it to reverse, for
the purpose of preventing breakage of delicate parts, and for the purpose herein set
forth and shewn upon the drawings.