IMPROVEMENTS IN TIME-PIECES
Year: 1885

page_text: I, WILLIAM ROBERT LAKE of the firm of Haseltine, Lake & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of my invention for "IMPROVEMENTS IN TIME-PIECES" to be as follows:-
This invention relates to time-pieces and consists partly in the combination in a
time piece movement having a gear-wheel for winding a spring, and a gear-wheel
for setting the hands, arranged upon the opposite side of the movement and having
its teeth out of line with the teeth of the gear-wheel for winding the spring, of an
intermediate gear wheel, a rod carrying the latter at the inner end and fitted into
a stem so that it can be moved longitudinally to shift the gear wheel which it
carries into direct engagement either with the gear wheel for winding the spring
or the gear wheel for setting the hands. A spring is preferably employed for
keeping the intermediate gear wheel normally in engagement with the wheel for
winding the spring. The gear wheel for setting the bands with which the inter-
mediate gear wheel engages has crown wheel teeth engaging with the intermediate
gear wheel and face teeth, or in other words peripherical teeth engaging with one
of a train of wheels constituting dial work. The intermediate gear wheel is
preferably screwed on to the rod which carries it so that the rod can be removed
by rotating it for the purpose of allowing the removal of the time piece movement
from the case.
.
The improvements also comprise a gear wheel having teeth extending from the
periphery and from one side, for setting the hands. This wheel is made by taking
a disc of metal and cutting teeth across its periphery in the way which is ordinarily
pursued in making a gear wheel having peripherical teeth. After the teeth have
been thus cut I cut away one side of the disc inwards of the teeth. The result is
to leave the teeth projecting at this side of the disc beyond the central portion
of the disc. The wheel when completed has teeth which project as ordinary
peripherical teeth and also as crown wheel teeth. The wheel is a combined
peripherical gear wheel and crown wheel. It can therefore at the same time
transmit motion to one wheel in the same plane with it and to another wheel at
right angles to it.

page_text: I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co, Patent Agents,
Southampton Buildings in the County of Middlesex, do hereby declare the nature
of my invention for IMPROVEMENTS IN TIME-PIECES" 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 to time pieces and consists partly in the combination in a
time piece movement, having a gear wheel for winding a spring and a gear wheel
for setting the hands arranged upon the opposite side of the movement and having
its teeth out of line with the teeth of the gear wheel for winding the spring of an
intermediate gear wheel, a rod carrying the latter at the inner end and fitted into
a stem so that it can be moved longitudinally to shift the gear wheel which it
carries into direct engagement either with the gear wheel for winding the spring
or the gear wheel for setting the hands. A spring is preferably employed for
keeping the intermediate gear wheel normally in engagement with the wheel for
winding the spring. The gear wheel for setting the bands with which the inter-
mediate gear wheel engages has crown wheel teeth engaging with the intermediate
gear wheel and face teeth or in other words peripherical teeth engaging with one
of a train of wheels constituting dial work. The intermediate gear wheel is
preferably screwed onto the rod which carries it so that the rod can be removed
by rotating it for the purpose of allowing the removal of the time piece movement
from the case.
The improvements also involve a gear wheel having teeth extending from the
periphery and one side and made by taking a thick disk of metal, forming teeth
across the periphery and then routing or cutting out at oue side a circular portion
or recess inwards of the inner line or base line of the teeth.
In the accompanying drawing Figure 1 is a rear view of a watch embodying
my improvement, the back of the case being removed and the stem being shown in
section. Figure 2 is a transverse section of the watch illustrating certain parts of
the movement, the winding mechanism and the case. Figure 3 is a transverse
section of a gear wheel used in the watch. Figure 4 is a face view of such gear
wheel. Similar letters of reference designate corresponding parts in all the figures.
All the views are made on an enlarged scale.
M designates a bevel gear wheel affixed to the inner end of a rod M¹. This rod
extends through the stein N of the case O and at the outer end it has secured to it
a cap M which extends over the outer end of the stem. In the stem near the
outer end is fitted a tube M³ which fits snugly between the stem and the rod and
is fastened in place by a pin r extending transversely through the stem into it.
Between the inner end of the tube M³ and the bevel gear wheel N a spiral spring M*
surrounds the rod M¹. This spring serves to force the rod M³ and bevel gear
wheel M inwardly.
The bevel gear wheel M is adapted to engage with a gear wheel L for the
purpose of transmitting rotary motion to a gear wheel P on the shaft A¹ of a
spring barrel in order to wind up the spring. It is also adapted to be disengaged
from the gear wheel L and engaged with a gear wheel J forming part of a train of
dial work JOK H¹HI I B¹ B³ B.
The gear wheel J is of peculiar construction. It has teeth which extend from
its periphery and also beyond one side, hence it is a combined peripherical gear

page_text: wheel and crown wheel. I prefer to make this wheel by taking a thick disk of
metal, forming teeth on its periphery in the usual way and then routing or cutting
out from one side a circular portion just inwards of the inner line or base line of
the teeth.
The periphery of the wheel L does not extend quite as far outwards as the
inner periphery or base line of the teeth of the wheel J.
A pawl's engaging with the gear wheel P precludes it from being turned in the
wrong direction. By turning the cap M when the gear wheels M and L are in
engagement the watch may be wound. By pulling the cap M² outwardly the gear
wheel M will be pulled out of engagement with the gear wheel L and into engage-
ment with the gear wheel J. The hands may then be set.
The manner in which the gear wheel M is secured to the rod M is somewhat
important. This rod at the inner end is shouldered and beyond the shoulder is
screw threaded. The wheel is put into its place in the movement frame and with
the latter introduced into the case. The rod is then introduced into the stem and
screwed into the wheel.
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. In a time piece movement the combination with a gear wheel for
winding a spring and the gear wheel for setting the hands arranged upon the
opposite side of the movement and having its teeth out of line with the teeth of
the gear wheel for winding the spring, of an intermediate gear wheel, a rod
carrying the latter at the inner end and fitted into a stem so that it can be moved
longitudinally to shift the gear wheel which it carries into direct engagement
either with the gear wheel for winding the spring or the gear wheels for setting
the hands, substantially as specified.
Second. In a time piece movement the combination with a gear wheel for
winding & spring and a gear wheel for setting the hands arranged upon the
opposite side of the movement and having its teeth out of line with the teeth of
the gear wheel for winding the spring of an intermediate gear wheel, a rod carrying
the latter at its inner end and fitted into a stem so as to be capable of being
longitudinally moved to engage directly with either of the other said gear wheels,
and a spring for keeping the intermediate wheel normally in engagement with the
wheel for winding the spring, substantially as specified.
Third. In a time piece the combination with dial work and a rod fitted in a
stem and carrying a gear wheel at its inner end, of a wheel having peripherical
teeth engaging with one of the wheels of the dial work, and side or crown wheel
teeth engaging with the wheel which is carried by the said rod, substantially as
specified.
Fourth. In a time piece the combination with a case having a stem, of a winding
and a setting mechanism arranged upon opposite sides of a watch movement, a
gear wheel adapted to act in conjunction with either, and a rod arranged in the
stem and having the said gear wheel secured to it by screw threads, substantially
as and for the purpose specified:
Fifth. A gear wheel having teeth extending from its periphery and one side
and made by taking a thick disk of metal, forming teeth across the periphery and
then routing or cutting out at one side a circular portion inwards of the inner line
or base line of the teeth, substantially as specified.
Dated this 10th day of October 1885.
HASELTINE, LAKE & Co.,
For the Applicant.