AN IMPROVED CLOCK OR TIMEPIECE
Year: 1840

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
CALLARD DAVIES, of College Place, Camden Town, in the County of Mid-
dlesex, Jeweller, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Twenty-third day of May, in the third year of Her reign, did, for
Herself, Her heirs and successors, give and grant unto me, the said James
Callard Davies, Her especial licence, that I, the said James Callard Davies,
my executors, administrators, and assigns, or such others as I, the said James
Callard Davies, my executors, administrators, or assigns, should at any time
agree with, and no others, from time to time and at all times during the term
of years therein expressed, should and lawfully might make, use, exercise, and
vend, within England, Wales, and the Town of Berwick-upon-Tweed, my.
Invention of "AN IMPROVED CLOCK OR TIMEPIECE;" in which said Letters
Patent is contained a proviso, obliging me, the said James Callard Davies, by
an instrument in writing under my hand and seal, particularly to describe and.
ascertain the nature of my said Invention, and in what manner the same is.
to be performed, and to cause the same to be enrolled in Her Majesty's.
High Court of Chancery within six calendar months next and immediately.
after the date of the said in part recited Letters Patent, as in and by the same,
reference being thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
James Callard Davies, do hereby declare that the nature of my said Inven

page_text: tion consists in the application of a train of watchwork to the fourth or last
arbor of a train of clock wheels, whereby I am enabled to make a clock or
timepiece that will go for more than twelve months with once winding up; and
also, in placing the second or third wheel, or both second and third wheels, of
the said train of clock wheels under the dial plate, and before the front plate,
or behind the back plate, or, at any rate, outside the frame, by which com-
bination and arrangements I am enabled to obtain very small and quite
portable clock or timepiece, which will only require winding once in every
year, and with only one spring barrel or moving power to each department
thereof, that is to say, one to the going part, and one to the striking part;
whereas, those formerly made to go that time have always necessarily been
from their construction exceedingly large and cumbersome. And in further
compliance with the said proviso, I, the said James Callard Davies, do hereby
describe the manner in which my said Invention is to be performed, by the
following statement thereof, reference being had to the Drawings annexed, and
to the figures and letters marked thereon, and in which Drawings similar
letters are used to denote similar parts in all the Figures, that is so say :-
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a front view of the interior of one of my said improved time-
pieces, made of a size adapted to carriage use, the dial and front plate of the
frame thereof being removed for the convenience of viewing the parts. A, A,
the back part of the timepiece; B, B, B, B, B, the connecting pillars, by
which it is secured to the front plate C, C, as shewn more particularly in
Figures 2 and 3; D, the barrel or box containing the main spring, arranged
for six revolutions, and carrying on its circumference the great wheel E,
which is cut with 140 teeth; F, the second wheel of 110 teeth, having a
pinion of 10 teeth on its arbor, and driven by the great wheel E, as shewn
more clearly in the side view, Figure 3; G is the third wheel of 90 teeth,
which, although one of the main or body wheels of the timepiece, is not
placed within the two frames or body thereof, as has always been the custom,
but is placed outside the front plate C, C, and immediately under the dial of
the timepiece, by which means an immense saving of room is effected. In the.
front plate C, C, Figure 2, just at the bottom of the circumference of the
second wheel F, a hole is perforated, through which the short pinion of 10
teeth, forming the arbor of the third wheel G, is brought, which arbor and
wheel are secured there by means of the cock g on the front plate C, C,
Figure 2, and a corresponding one, g, underneath the same plate, which last
is shewn in Figure 1, but is supposed to be removed in the side view, Figure 3,.

page_text: 66
in order that the connection of the pinion with the previous wheel may be
more clearly exhibited, and from which view it will appear that the arbor of
the said third wheel G. is driven by the second wheel F. The clockwork
portion of the timepiece being manufactured and put together as just
described, the frame H, containing a portion of watchwork (commencing with
what is usually termed the "centre wheel,") is fixed on the front plate C, C,
by its two screws, in such manner that the pinion of 9 teeth, K, Figure 3,
forming the arbor of the first or centre wheel thereof, comes within the range
of and is driven by the third clock wheel G. The situation of the other watch
wheels in the frame H need not be particularly described, inasmuch as any
ordinary train or series, beginning with the centre wheel, with any escapement
whatever, may be made applicable to the purpose, regard being only had to the
motive power possessed by the third wheel G, which. power being ascertained,
as compared with that of the great or fusee wheel of any ordinary watch; the
calliper," or size of the watch train to be used, must be determined accord-
ingly. The wheels for the regulation of the relative speed of the hands, which
are technically denominated "the motion," being similar to those in ordinary.
use for the purpose, need no description beyond what is shewn by the
Drawings. They are seen immediately under the hands in Figure 2, a view
thereof being merely given for the sake of rendering the machine complete.
The timepiece is regulated for faster or slower by means of the forked.arm L,
Figures 2 and 3, the short arm of which lets out or takes up the balance or
pendulum spring in the ordinary way, the arm itself being moved by a small
pin, which slides in a groove cut in the dial, the other end of the pin being
inserted between the fork. Nothing further need, however, be observed on
this head, as it forms no part of the improvements claimed to be patented, and
other modes of regulation might be used, according to circumstances. The
square M is that used to wind up the timepiece, the main spring of which,
regulated by its stopwork, should be so arranged as to cause the great wheel
to make six revolutions.
It is only necessary further to state that in cases in which it is not of
importance that the clocks or timepieces should be so small as the one just
described, and when they are intended for the mantel-piece or bracket, it may
not be necessary to adopt the second part of my Invention, that is to say, the
placing of the second or third wheel of the said clock train, or both, outside
the framework, and the clock train may also bear a different arrangement, and
a great wheel with a fusee and chainwork be brought in, in which case the
first part of my said Invention would be sufficient for the purpose.
But whereas, I claim as my Invention, first, the application of a train of

page_text: watch wheels, beginning at the centre wheel as aforesaid, to the arbor, acted
upon by the third wheel of a train of clock wheels as aforesaid, the centre wheel
of the watch train being that which is placed upon the said arbor, and the
teeth being arranged as aforesaid, whereby I am enabled to keep the timepiece
formed thereby going for more than twelve months with only once winding up;
and, secondly, in placing the said second or third wheel of the said clock
train, or both, in front of the front plate, or behind the back plate, or, at any
rate, outside the frame, whereby I am enabled greatly to diminish the size of
the said clock or timepiece; and such my Invention, constituting my said
improved clock or timepiece, being, to the best of my knowledge and belief,
entirely new, and never before used within that part of Her said Majesty's
United Kingdom of Great Britain and Ireland called England, Her said
Dominion of Wales, or Town of Berwick-upon-Tweed, I do hereby declare
this to be my Specification of the same, and that I do verily believe this my
Specification doth comply in all respects fully and without reserve or disguise
with the proviso in the said herein-before in part recited Letters Patent.com-
tained; wherefore I do hereby claim to maintain exclusive right and privilege:
to my said Invention..
In witness whereof, I, the said James Callard Davies, have hereunto set
my hand and seal, this Twenty-third day of November, in the year