Improvements in Watches.
Year: 1894

page_text: Date of Application, 28th June, 1894
Complete Specification Left, 28th Mar., 1895-Accepted, 22nd June, 1895
PROVISIONAL SPECIFICATION.
Improvements in Watches.
WILLIAM HARRIS of 158 Wood Street Walthamstow in the County of Essex,
Watchmaker do hereby declare the nature of this invention to be as follows:-
A cap covering the whole of the top plate and escapement having an index
upon the outside of the cap-there being a forked attachment on the under side of
the cap connecting the outer index with the index of the watch-the cap being
affixed to the watch by means of screws which pass through the top plate and
screw into the pillar plate of the watch thus drawing the cap and pillar plate
tightly together a brass edge being screwed to the pillar plate so extended as to
cover the escapement and third pivot holes-the dial feet passing through the
brass edge only and being affixed thereto by screws on the outer edge.
Dated this 27th dex of Iun 1804
WILLIAM HARRIS.
WILLIAM HARRIS Watchmaker 158 Wood Street Walthamstow Essex 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 :-
A cap covering the whole of the top plate and escapement having an index upon
the outside of the cap there being a forked attachment on the under side of the
cap connecting the outer index with the index of the watch the cap being affixed
to the watch by means of screws which pass through the top plate and screw into
the pillar plate of the watch thus drawing the cap and pillar plate tightly together.
A brass edge being screwed to the pillar plate so extended as to cover the escapement
and third pivot boles, the dial feet passing through the brass edge only and being
affixed thereto by screws on the outer edge.
And in order that my invention may be better understood I have caused to be
appended hereunto one sheet of drawings marked with letters of reference.
Figure 1 is a perspective view of the cap.
Figure 2 is a plan of the top of cap showing the outer index and cap screws.
Figure 3 is a plan of the watch cock and top plate shewing the forked attach-
ment as connected with the index of watch and
Figure 4 is a perspective view of the brass edge.
In putting this invention into practice I make the cap (Fig. 1) to cover the
whole of the top plate (E Fig. 3) and escapement and fix it to the watch with two
or more screws (A Fig. 2) which pass through the top plate at a¹ Fig. 3 and screw
into the pillar plate thus drawing the rim of cap tightly upon the pillar plate,
while the hole (a Fig. 2) in cap through which the winding square passes fits
friction tight upon the cup surrounding the said winding square; and in order
that the watch may be regulated from the outside I provide the cap with an

page_text: index (B Fig. 2) and connect it with the index (C Fig. 3) of watch by means of a
forked attachment which is of the form shown at D Fig. 3 with the end of the
fork bent downwards to engage with the index C, the said forked attachment D is
fixed upon a short spindle and pivoted between the cap and top plate, and will
centre at any convenient point on the top plate on the line of a circle drawn (central
with the index C) across the centre hole in top plate E and the fork is the required
length to engage with the index C at a point half way between the pivotal centres
of the index C and forked attachment D; the cap being sunk on the under side
for the freedom of the fork. The outer index B is affixed by any known means to
that part of the spindle which projects above the top of cap, and there being
ample space on the cap the index B can be fitted on line with the fork or at any
desired angle; two studs are fixed in cap one each side of the index B to keep the
index within the usual limit.
The brass edge (F Fig. 4) is a thick ring surrounding the pillar plate forming
a rim to it and bearing a thin partial plate which lies between the pillar plate and
dial, covers the escapement and third pivot holes, and is cut away to accommodate
the ratchet and click work and motion wheels, and is screwed and fitted to the
pillar plate in the usual way; while the dial feet pass through the brass edge only
and are affixed thereto by screws ff on the outer edge.
The original features in my invention consist in the cap being provided with an
index and forked attachment for the convenience of regulating the watch without
removing the cap which permits of the cap being fixed thereby assuring greater
accuracy of fit which combined with its covering the upper part of the watch, and
the extended brass edge covering the third and escapement pivot holes, and the dial
feet passing through the brass edge only-instead of passing through pillar
plate and being affixed thereto by screws on the outer edge; the watch is by
these means effectively covered and protected from dust and the like.
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.
A cap provided with an index and forked attachment and affixed to the pillar
plate of the watch by means of screws, and an extended brass edge covering the
escapement and third pivot holes and provided with screws on the outer edge for
affixing the dial feet which pass through the brass edge only, the whole being
constructed precisely as described.
Dated this 28th day of March 1895.
WILLIAM HARRIS.