IMPROVEMENTS IN HAND ENDORSING STAMP APPARATUS
Year: 1877

page_text: PROVISIONAL SPECIFICATION left by George Kissam Cooke at the Office of
the Commissioners of Patents on the 27th January 1877
GEORGE KISSAM COOKE, of No 12, Paternoster Row, in the City of London,
Manufacturer "IMPROVEMENTS IN HAND ENDORSING STAMP APPARATUS"
The object of the Invention is to secure increased summplicity in the construction
and use of hand endorsing stamp apparatus.
In carrying out my improvements the moveable plate or "platten ' carrying the
dios or impressing surfaces, from which the impressions to be imparted by tho
stamping is formed to icceive duplicate dies or impressing surfaces, one on one side
and the other on the opposite side thereof, and the pressure employed to impart
one unpression causes ink to be received on to the other impression, and so on, the
inking of and the stamping with each of such dies or impressing surfaces taking
place alternately
The impressing surfaces are formed of india-1ubber, vulcanized or prepared, or of
other suitable elastic or non-elastic material
The framing of the apparatus is formed in two parts, one of which is formed with
feet or sui faces to rest on the surface to be impressed, and in which the platten
carrying the impressing surfaces is capable of sliding, whilst the other by pivots
carries the plate or platten carrying the dies or impressing surfaces. This secondary
portion of the frame is capable of a sliding motion on the other part, and it is formed
with a socket to receive the stem of the operating handle, which stem at its lower
end carries the inking surface or pad.
The pivots of the plate or platten carrying the impression surfaces pass through
slots in the first part of the frame for guidance, and on these pivots are formed or
applied pinions of tooth surfaces, one on each, and the teeth of these pinions take
into corresponding teeth on the segments of levers supported to turn on axes carried
by the first portion of the frame, which levers are connected together for simulta-
neous action, and are weighted at their opposite ends, or are operated by spring
pressure.
In use, the frames having been placed in position on the surface to be impressed,
the handle is borne upon so as to bring the inking surface or pad on to one die or
mpressing surface, whilst the other die or impressing surface is borne on to the
urface to be impressed.

page_text: Having effected an impression, and withdrawn the pressure from the handle, the
tendency of the spring in the stem thereof is first to raise the inking surface with
the frame carrying the dies or impressing surfaces, and then on the inking surface
or pad being further raised the teeth in the segmental racks act on the pinions to
cause the partial rotation of the plate or platten carrying the impression surfaces, so
as to place the surface last inked in position for imparting the next impression,
whilst that last used in impressing will now be brought into position to receive the
next inking, and so on in succession
The duplicate impressions may be the same or different, and in place of the
platten being formed with only two impression surfaces' it may be formed with
other number of surfaces, the tooth operating surfaces being varied accordingly
The inking surface or pad is capable of being readily removed and replaced for
the supply of ink thereto or for other purposes by sliding into or on the plate or
platten carrying it
.
If desired the impressing surfaces or the platten carrying them may be provided
with guards adapted to regulate the amount of force applied in the act of
impressing