Improvements in Watches.
Year: 1895

page_text: Improvements in Watches.
I, CHARLES JAMES HEWITT of No. 5, High Street, Prescot in the County of
Lancaster, Watch Manufacturer, do hereby declare the nature of this invention
to be as follows :-
This invention relates to watches and has for its object certain improvements
to be hereinafter described whereby a great saving is effected in labour and
material.
Hitherto the projection on the watch plate which forms the pivot on which the
regulator turns has been formed. in one with such plate, thereby necessitating
a much thicker plate than was actually required in order when turned down to form
such projection.
Now according to this invention I form the projection separate from the plate by
screwing a hollow cup or as it is called in the trade the pettence into the watch
plate with its end projecting therethrough sufficiently to receive the regulator which
is sprung on in the usual manner. In this arrangement the regulator need only be
a flat piece of metal and in order to prevent any springing up or vertical movement
thereof, its extremity is held down by a quadrant or silver piece as it is called in
the trade having the ordinary divisions marked thereon. Another improvement
consists in the vertical adjustment of the stud to which one end of the balance
spring is attached. Heretofore this stud has been screwed into the watch plate
itself which rendered any vertical adjustment thereof extremely difficult.
Now by this invention I fix a projection or bush on the plate in which is inserted
the stud, the vertical adjustment of the latter being regulated by a set screw
passing through the bush or projection at right angles to the stud. By this
means the stud can be readily raised or lowered in order to keep the balance
spring perfectly flat.
I also provide an improved method of securing the pallets to the escapement lever
which consists in inserting two lugs or studs which may be of brass or any other
suitable material in the lever, such studs being rivetted or otherwise secured
thereto in such a manner as to prevent any possibility of their turning on the lever.
The heads of the studs have slots or recesses into which the pallets are placed,
the effect of which is to combine the lever and pallet, at the same time making a
light sound escapement with the jewel secured on all the four sides, which as far as
my knowledge goes not the case in any other arrangement.
Dated this 30th day of November 1895.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.

page_text: Improvements in Watches.
I, CHARLES JAMES HEWITT, of No. 5, High Street, Prescot, 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 :-
This invention relates to watches and has for its object certain improvements
to be hereinafter described, whereby a great saving is effected in labour and
material.
These improvements relate :-
1st To the manner of forming the projection on the watch plate on which the
regulator is pivotted,
2nd To the vertical adjustment of the stud to which the balance spring is
attached,
3rd To an improved method of securing the pallets to the escapement lever.
Referring to the drawings:-
:-
Figure 1 is a plan view of a watch plate, showing some of the improvements;
Figure 2 an enlarged section on the line X X;
Figure 3 an enlarged elevation and plan of the device for adjusting the stud;
Figure 4 a plan view of an escapement lever with the pallets secured according
to my invention, and
Figures 5 and 6 detail views of the same.
Hitherto the projection on which the regulator turns has been part of the
regulator, thereby necessitating a much thicker regulator than was actually
required in order when turned down to form such projection.
A' or
Now according to this invention, I form the projection A, Figures 1 and 2, solid
with the plate B or preferably separate therefrom by screwing
a hollow cup
as it is called in the trade the potance into the watch plate with its end A projecting
therethrough sufficiently to receive the regulator C which is sprung on in the usual
manner. In this arrangement the regulator need only be a flat piece of metal and
in order to prevent any springing up or vertical movement thereof, its extremity is
held down by a quadrant D or silver piece, as it is called in the trade, having the
ordinary divisions marked thereon. Referring now to the 2nd improvement, which
consists in the vertical adjustment of the stud E, Figures 1 and 3, to which one end
of the balance spring is attached. Heretofore this stud has been screwed into
the watch plate B itself which rendered any vertical adjustment thereof extremely
difficult.
Now by this invention, I fix a projection or bush F on the plate in which bush is
inserted the stud E, the vertical adjustment of the latter being regulated by the set
screw G passing through the bush or projection at right angles to the stud. By
this means the stud can be readily raised or lowered in order to keep the balance
spring perfectly flat.
Lastly, Figures 4, 5 and 6 show an improved method of securing the pallets to
the escapement lever which consists in inserting two lugs or studs H, which may be
of brass or any other suitable material in the lever H₁, such studs being rivetted or
otherwise secured thereto in such a manner as to prevent any possibility of their
turning on the lever. A convenient way of doing this is shown in Figure 6, which
is a plan view of underneath, hh being portions of the stud passing through the
lever and rivetted thereto. The heads I of the studs have slots or recesses J into
which the pallets K are placed, the effect of which is to combine the lever and
pallet, at the same time making a light sound escapement with the jewel secured on
all the four sides, which, as far as my knowledge goes, is not the case in any other
arrangement.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is :-
:-
The improvements in watches, which consist in
1st. The projection, on which the regulator is pivotted, formed on the watch
plate or a hollow cup or potance inserted into the plate with its end projecting
therethrough sufficient to receive the said regulator;
2nd. The arrangement, with vertical adjustment of the stud to which one end of
the balance spring is attached, in which a bush or projection is attached to the
watch plate and through this bush the stud passes, being fixed in the desired
position by a set screw passing through the bush at right angles to the stud;
3rd. The combination or arrangement of the pallets and the escapement lever in
which lugs or studs are rivetted or otherwise secured to the lever so as not to turn
on their axes and having alots or sockets into which the pallets fit and are held
secure on all their four sides, substantially as described.
Dated this 97th dow of August 1896
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Birmingham, and London, Patent Agents.