IMPROVEMENTS IN WATCHES
Year: 1885

page_text: I, ROBERT MOFFAT MARPLES, of 7 Cripplegate Buildings, Wood Street, in the
City of London, Manager Seth Thomas Clock Company, do hereby declare the
nature of my invention for "IMPROVEMENTS IN WATCHES" and in what manner
the same is to be performed, to be particularly described and ascertained in
and by the following statement:→
This invention relates chiefly to watches having stem winding and setting
attachments.
:
The object of the said invention is to simplify the construction, to reduce the cost
of production and to increase the efficiency of watch-movements. To this end the
said invention consists chiefly in providing a watch, having a stem winding and
setting attachment, with a collar which is adapted to receive and form a bearing
for the outer end of a winding pinion, and is locked in place by engagement with
the adjacent parts.
The invention also partly consists in providing a collar which forms a bearing
for the outer end of a winding-pinion and is locked in place by engagement with a
recess that is formed in one of the movement-plates.
It also partly consists in combining with a winding-pinion, a bridge or pieco
which is adapted to receive the said pinion and to form a bearing for its inner end,
the said bridge being secured to, or upon, one of the movement-plates; and a collar.
that forms a bearing for the outer end of said pinion.
It also partly consists, in combining in a watch-movement a winding-bridge,
which is held in position upon the pillar-plate by a single screw; a winding-pinion
having its inner end journalled within said bridge and its outer end in a collar
contained within a recess which is partly formed in said bridge and in part within
said pillar plate.
In the accompanying drawing,
Figure 1 is a plan view of a watch-plate provided with improvements according
to this invention.
Figure 2 is a perspective view of the lower side of the same.
Figure 3 is a like view from the inner side of the bridge for journalling the
winding-pinion, the engaging face of the pillar-plate, the winding pinion and the
collar-bearing being separated from each other; and
Figure 4 is a section of the same united, and drawn to an enlarged scale.
Similar letters of reference indicate like parts in the several figures.
A represents the pillar-plate of a watch, upon the lower or inner face of which is
secured a bridge B having the form shewn in Figures 2 and 3. Upon the inner

page_text: face of said bridge is provided a stud b which projects through a corresponding
opening a in said plate, and furnishes a bearing for, and upon which is pivotted, a
yoke C. A screw D, passing through said yoke, or through a collar c contained in
a recess in the same, into said stud, operates to lock the said bridge firmly in place
upon said plate.
Within the bridge B is formed a recess 6¹ which receives a winding pinion E and
its inner bearing end e, while within the pillar-plate A is provided an opening al,
through which said pinion projects for engagement with one of the wheels of the
winding-train.
The outer end of the recess b' is enlarged, which enlargement in connection with
a recess a¹ in the adjacent face of the plate A, receives and contains a circular
collar F, which has, at its centre, an axial opening f that fits over. the outer end e¹
of the winding-pinion E, and furnishes a bearing for. the same. The collar F is
preferably constructed of steel, but may be made of any other suitable material if
desired. It is held firmly in place radially by peripheral contact with the inner
peripheries of the recesses b¹ and a¹, and is prevented from motion in a line with
the axis of the winding, pinion E by the engagement of its edge with the sides of
Baid recess a¹. Said collar is inserted in said recess b¹ and over said pinion-journal el
before said bridge is placed in position upon said plate, and can only be removed
after said bridge has been detached.
While the collar F is, preferably, held in place as shewn, it may be arranged to
engage at its edges with either or both of the movement-plates, or may be locked
in position by any other means.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
First: A collar which is adapted to receive and form a bearing for the outer end
of a winding pinion, and is locked in place by engagement with the adjacent parts,
substantially as, and for the purpose, specified.
Second: A collar which forms a bearing for the outer end of a winding-pinion,
and is locked in place by engagement with a recess that is formed in one of the
movement-plates, substantially as, and for the purpose, shewn.
Third In combination with a winding-pinion, a bridge which is adapted to
receive the same and to form a bearing for its inner end, the said bridge being
secured to, or upon, one of the movement-plates; and a collar that forms a bearing
for the outer end of said pinion, substantially as, and for the purpose, set forth.
Fourth-A watch-movement in which are combined a winding-bridge which is
held in position upon the pillar-plate by a single screw; a winding-pinion having
its inner end journalled within said bridge; and a collar that forms a bearing for
the outer end of said pinion, and is contained within a recess which is partly
formed in said bridge and in part within said pillar-plate, substantially as, and for
the purpose, shewn and described.
L 1
COR.
7
HASELTINE, LAKE & Co.,
For the Applicant.