An Improved Inking Pad for Hand Stamps.
Year: 1887

page_text: Date of Application, 2nd Nov., 1887
Complete Specification Left, 2nd Aug, 1888
Complete Specification Accepted, 7th Sept., 1888
An Improved Inking Pad for Hand Stamps.
I EDWIN MILLER RICHFORD of 44 Snow Hill in the City of London, Rubber
Stamp Manufacturer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to an improved self inking pad for rubber and other hand
stamps used for endorsing and other purposes, and it has for its object to provide
the pad with a sufficient reserve supply of ink to maintain it in a fit condition for
use for a very long period of time without requiring to be recharged with ink.
The invention consists in such a construction of the pad that at each pressure of
the endorsing stamp on the pad, a fresh quantity of ink will be transferred to the
acting surface of the pad in just sufficient quantity to maintain it in a fit state for use,
an excessive supply which would clog the stamp being prevented.
The pad is composed of a lower layer or layers of thick porous textile material,
preferably woollen, which is fully saturated with aniline in a partially dissolved state,
an upper layer or layers of similar material moistened with ordinary endorsing ink,
and a perforated sheet of metal or other non-porous material interposed between the
lower or reservoir layers and the upper layers of porous textile material whereby the
upper layers are kept separated from the lower or fully saturated layers and are thereby
prevented from absorbing an excessive quantity of ink under the pressure of the stamp
when applied upon the pad. The upper layer of soft material is covered with a thin
fabric such as closely woven cotton which is cemented to the base of the pad and
constitutes the inking surface upon which the stamp is applied. The perforated sheet
metal interposed between the lower fully saturated, and the upper partially saturated,
layers of soft, textile material, keeps them separate and distributes the pressure of the

page_text: stamp more or less over the whole area of the under layer, thereby preventing
excessive absorption of color by the upper layer and ensuring a flat and smooth
surface for the stamp to press upon, whilst the perforations give passage to an even
upward transference of color when the stamp is pressed upon the pad.
This improved pad is not liable to be affected by heat and to become soft and sticky
or disintegrated by use as are the solid gelatine pads.
Dated thi
1007
E. M. RICHFORD.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.

page_text: I, EDWIN MILLER RICHFORD, of 44, Snow Hill, in the City of London, Rubber
Stamp Manufacturer, 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 relates to an improved self inking pad for India-rubber and other
hand printing stamps used for endorsing and other purposes; and it has for its object
to provide the pad with a sufficient reserve supply of ink to maintain it in a fit
condition for use for a very long period of time without requiring to be recharged
with ink.
The Invention consists in such a construction of the pad that at each pressure of
the endorsing stamp on the pad, a fresh quantity of ink will be transferred to the
acting surface of the pad in just sufficient quantity to maintain it in a fit state for use,
an excessive supply which would clog the stamp being prevented.
Reference is to be had to the accompanying drawings forming part of this specifica-
tion, in which figure 1 is a plan view of the pad in a box, as open for use. Figure 2 is a
longitudinal vertical section of the pad, the box being closed. Figure 3 is a similar
section of part of the pad, on a larger scale. Figure 4 is an end elevation of the
box closed. The same letters of reference indicate corresponding parts in all the
figures.
The pad proper is composed of a lower layer or layers, preferably two, ab one of
thick woollen cloth and one of felt and of an upper layer or layers preferably two, e d
of similar materials, a perforated sheet of metale being interposed between the lower
or reservoir layers ab and the upper layers cd of porous material. The topmost layer
of soft material is covered with a thin fabric g such as closely woven cotton stretched
over it and wrapped round the edges of the pad and cemented to a wooden base h.
This covering fabric y constitutes the inking surface upon which the stamp is applied.
The lower layers ab are contained in a metal tray and are fully saturated with anilino
in a partially dissolved state, whilst the upper layer or layers c d are moistened with
ordinary endorsing ink. The perforated sheet metal e interposed between the lower
fully-saturated and the upper partially-saturated layers, keeps them separate and
distributes the pressure of the stamp more or less over the whole area of the under
layer, thereby preventing excessive absorption of color by the upper layer under the
pressure of the stamp, and ensuring a flat and smooth surface for the stamp to press
upon whilst the perforations give passage to an even upward transference of color
when the stamp is pressed upon the pad. The whole pad thus constructed is contained
in a metal box provided with a lid.
This improved pad is not liable to be affected by heat, or to become soft and sticky,
or disintegrated by use, as are the solid gelatine pads.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The herein described construction of inking pad composed essentially of one or
more fully-saturated lower layers of cloth and of one or more partially-saturated
upper layers of cloth in combination with a perforated sheet of metal separating the
upper from the lower layers, as described.