IMPROVEMENTS IN WATCHES
Year: 1876

page_text: LETTERS PATENT to Charles August Herzog, of No. 25, Bouvèrie Street, in the
City of London, for the Invention of "IMPROVEMENTS IN WATCHES."
communication from abroad by Charles Morlet, of Geneva, Switzerland.
A
COMPLETE SPECIFICATION filed by the said Charles August Herzog at the
Office of the Commissioners of Patents on the 22nd August 1876.
CHARLES AUGUST HERZOG, of No. 25, Bouverie Street, in the City of London.
"IMPROVEMENTS IN WATCHES." A communication from abroad by Charles Morlet,
of Geneva, Switzerland.
This new improvement of the movement in watches has the great advantage of
suppressing several screws, especially the smaller ones, which are a great trouble not
only to watch manufacturers, but also to watch jobbors; at the same time the sup-
pression of the screws does not at all weaken the firmness of the movement. This
movement consists of a plain plate and five bridges for horizontal watches, and for
lever watches six bridges. The bridge of the centre wheel carries also the third
wheel, as in Figure 2. The barrel arbor in this movement is pivoted, that is to say,
the arbor runs in holes on both ends; first, at the one end it runs between the
ratchet wheel and the winding square in the barrel bridge; 2nd, on the other end
it runs where the square of the stop finger usually is in the plate, see Figure 3.
There is a sinking underneath the barrel bridge for the ratchet wheel; this sink-
ing underneath the barrel bridge suppresses the old cap with its four screws,
Figure 30.
The click spring in this movement, which is different to that in ordinary use, is
placed horizontally on the barrel bridge, and fixed with its foot in a groove on tho
bridge, Figure 2. This click spring has the advantage not only of being stronger
than the one in ordinary use, but also is much easier to replace.
One screw of the barrel bridge serves a double purpose, namely, for holding the
spring and the bridge at the same time on the plate.
The index is also more perfect than that in ordinary use; it consists of only one
piece, and is fixed without any screws on the balance cock, for example. The index
is of one piece, with an end stone in the centre.

page_text: The index has underneath a ring of steel of a conic shape on the outside, which
is for about one-third of its circumference hard soldered on the round part of the
index; the remainder of the steel ring is opened, and it acts like two small springs.
The part of the ring left open, which acts like two small springs, works in a conic
sinking in the balance cock.
After placing the index on the cock the part of the ring which acts like two small
springs fits tight against the inside of the sinking, and enables the index to move
smooth.
The outside of the ring underneath the index, and the inside of the sinking in
the cock being both of a dovetailed shape, the index is kept tight against the cock.
In witness whereof, I, the said Charles Herzog, have hereunto set my hand
and seal, this Twenty-second day of August, One thousand eight hundred
and seventy-six.
Signed, sealed, and delivered by the
above-named Charles August Herzog,
in the presence of
E. H. BIGGIN,
Sol³.,
"
61, Chancery Lane,
W.C.
CHARLES AUGUST HERZOG. (L.S.)