Improvements in Date and Time Stamps Connected Directly to Clocks and other Time-pieces.
Year: 1892

page_text: Date of Application, 31st Oct., 1892
Complete Specification Left, 31st July, 1893-Accepted, 2nd Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Date and Time Stamps Connected Directly to
Clocks and other Time-pieces.
I, BENJAMIN WILLIAM WARWICK, of 134 Highbury Hill, London, N.,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention is essentially a time stamp applied directly to clocks and other
time pieces, the hand or hands of the stamp being carried by motion work driven
by the clock work.
A convenient way of carrying out my invention is as follows:-I secure the
stamp dial to the back frame of the clock, and to the set hands of the clock I
connect motion work similar to that in the clock, for the purpose of driving the
hour hand of the stamp. In order to mark the minutes with the stamp, the minute
hand must revolve in the same plane as, but in a different orbit to the hour hand.
This may be accomplished by causing the hour wheel of the clock to drive a
pinion, which itself drives an annular wheel in the stamp carrying the minute
hand.
If desired, the clock may be placed in a reversible self-inking slide frame, or an
inking roller may be made to cross over the face of the stamp by the action of
stamping.
October 1899
W. H. MUNNS,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Date and Time Stamps Connected Directly to
Clocks and other Time-pieces.
I, BENJAMIN WILLIAM WARWICK, of 134 Highbury Hill, London, N.,
Engineer, 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 :-
My invention is essentially a time stamp applied directly to clocks and other
time-pieces, the hand or hands of the stamp being carried by motion work driven
by the clock work.
My invention may be carried out as follows:-I secure the stamp dial to the
back frame of the clock. To the centre axis of the clock I connect motion work
for the purpose of driving the hour hand of the stamp. In order to mark the
minutes with the stamp the minute hand must revolve in the same plane as but in
a different orbit to the hour hand. This may be effected in the way shown in the
accompanying drawings.
Fig. 1 is elevation partly in section of the stamp apparatus attached to time-
piece.
Fig. 2 is external view of time-piece and stamp.
Fig.
3 is elevation partly in section on an enlarged scale of the stamp apparatus
of Fig. 1.
A is clock frame. B is frame of stamp carrying the dial L. This frame B
is attached to clock frame. C is axle carrying minute hand of clock and
terminating at back at C¹. D is toothed wheel fixed to frame of clock. E is
carrier attached to and revolving with axle C. F is pinion carried by E and
freely revolving about its own axis. Therefore D, E, and F constitute a sun and

page_text: planet motion. This planet pinion F also gears with fixed wheel D and with a
wheel G sleeved on to axle C. The number of teeth in wheel G is to the number
in fixed wheel D as 12 to 11. Consequently for every complete revolution of the
minute axle C and carrier E the wheel G will be moved forward one-twelfth of
its circumference. The wheel G carries the hour hand of stamp J, and the minute
hand K of stamp is carried by E. Therefore the minute hand and the hour hand
can be in the same plane. G is shoulder screw keeping wheel G in position,
and is spindle screwed in to carrier E and supporting planet pinion F.
Fig. 4 is an elevation of a modification of the apparatus for time stamp.
On the centre axis C of time-piece and revolving with it is the toothed wheel M
which gears with toothed wheel N, carrying toothed pinion O, which pinion gears
with toothed wheel P sleeved on to axis C. This wheel P carries the hour hand J
of stamp. This motion work is similar to that at present in use in clock work.
The centre wheel Q of time-piece gears with toothed pinion R which also gears
with annular toothed wheel S secured in position by guide screws S' as shown.
wheel S carries minute hand of stamp K by upright or barrel T.
This
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:
1. A time stamp attached directly to time-pieces without additional connecting
gear in which a quickly moving hand and a slowly moving hand can be in the same
plane.
2. The time stamp affixed to a time-piece substantially as described and shown in
Figs. 1-3.
3. The time stamp affixed to a time-piece substantially as described and shown
in Fig. 4.
Dated this 31st day of July AD 1893
W. H. MUNNS,
Agent for Applicant.