Improvements in and appertaining to Hand Stamps for Dating, Numbering, or the like.
Year: 1890

page_text: Date of Application, 8th Sept. 1890
Complete Specification Left, 3rd Jan., 1891-Accepted, 21st Feb., 1891
PROVISIONAL SPECIFICATION.
Improvements in and appertaining to Hand Stamps for Dating,
Numbering, or the like.
A communication from abroad by MANCEL RODRIGUEZ Y GARCIA and EMILE
MARTI Y LOPEZ DEL CASTILLO, both of Valencia, in the Kingdom of
Spain, Engraver and Property Owner respectively.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for
Foreign Patent Solicitors, 6, Lord Street. Liverpool, and 6, Bank Street, Man-
chester, both in the County of Lancaster, & 323, High Holborn, in the County of
Middlesex, Civil Engineer, do hereby declare the nature of this invention to be
as follows:-
The object of this invention is a hand stamp which may be arranged to serve
either as a simple stamp for printing that which is engraved on a plate, or as a
numbering stamp, or as a numbering and dating stainp.
Referring to the drawings:
Figure is a front elevation of a stamp constructed in accordance with this
invention, and applicable for use in printing the impression of matter engraved or
otherwise on a plate, and also provided with adjustable figures or letters for
printing the date, and for printing consecutive numbers. The latter, namely,
those for printing numbers, may be automatically changed by the action of
stamping.
Figure 2 is an elevation at right angles to Figure 1.
Figure 3 is a similar view to Figure 1, but parts are supposed to be removed,
and others are shown as occupying different positions.
Figure is an elevation at right angles to Figure 3.
Figure 5 shows a view of a series of impressions which may be produced by this
stamp.
The remaining figures will be hereinafter referred to.
The invention will first be described in connection with a numbering and dating
stamp which is the most complicated, and it will afterwards be explained how it
may be simplified in the two other cases.
To render the description more clear, the apparatus will be divided into three
parts. namely, a, the numbering apparatus (Figures 6 to 23). b, the inking
cylinder (Figures 23 to 26). c, the frame or box (Figures 3 and 4).
4. Numbering apparatus. The numbering apparatus is composed of a hollow
cylinder A B CD, of steel, bronze, copper, or any other suitable metal carrying
an engraved plate E F, soldered or otherwise suitably joined thereto. This
cylinder is furnished with two gear wheels C³ C, one of its ends is formed by
means of a disc_shown in detail by Figures 9, 10 and 11, and the other by the
disc shown by Figures 12, 13 and 14; these two discs are fixed on the cylinder
by means of screws; the part a bed of the one and the part a bed of the
other enter into the interior of the cylinder. These two discs will be described
in detail hereinafter.
In the interior of the cylinder A B C D there is a spindle A, forming an
axis, and one of the extremities of which engages in the cavity I of the first
disc (Figure 10) and the other in the cavity of the second (Figure 13). On
the said spindle is placed a certain number of castors or rowels shown by
Figures 13 to 20. The number of these rowels is variable according to the
matters which are to be printed.
In the pattern shown on the drawing herewith, there are:-
1st. Four rowels for the numbering apparatus, each of which bears on its

page_text: circumference, in relief, the numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9) (Figures 6, 7 and 8):
the rowel m bears the unit mumbers, m the tens, m³ the hundreds, m the
thousands, so that, with these four rowels, 0 to 9999 may be enumerated if
there were five the numbers could be brought up to 99,999, if six up to 999,999,
etcetera.
2nd. Five rowels for the date, four of which, n³, n², n'. n, bear numbers
successively from 0 to 9: the middle one is divided into twelve equal parts,
bearing each the numbers from 1 to 12 written in Roman characters.
Each of the rowels m², m², m³, m of the numbering apparatus is composed of
two plates: the one 1-1 which bears, in relief, on its periphery, the numbers or
the letters, the other 2-2 which is formed with detent teeth as indicated in
Figure 17. The plate 2-2 of the unit rowel bears ratchet teeth 3 (Figure 20) in
place of the simple detent teeth 4, shown in Figure 17. The pieces 1-1 are
connected to the pieces 2-2 by means of two little steel pins or rivets 5—6, a
small space being left between the pieces.
Fixed in the interior of the cylinder there is placed a comb plate which bears
catches K, which engage in the teeth of the pieces 2-2 of the rowels, so as to
maintain the latter in place.
Between the plates 1-1 and 2-2 there is placed a little rod surrounded by a
little coiled spring (Figures 21 and 22): the head or projecting part of the rod of
the units rowel is about! millimetre longer than that of the rols of the other
rowels for the purpose of causing it to come in contact with an abutment on the
dise as hereinafter described. Each of the plates 2-2 of these rowels, excepting
the units one, bears ten little holes 7, the use of which will be shown later on.
The plate which bears the catches K is fixed on the cylinder by means of two
little keys K' shown in detail in Figures 34 and 35.
The disc represented by the Figures 9 to 11 carries a small lever M M, jointed
round the axis N: it is formed of two parts and the hend M may be slightly
inclined around the axis N. In the inner face of the dise is formed an annular
cavity or cam groove in which is placed a part S, which forms an abutment and
the object of which will be explained later on.
The second disc, represented by Figures 12 to 14, simply bears a little crank ()
for a purpose hereinafter described.
When
These two dises are furnished with grooves D', Figure 12, so as not to slip on
the paper, as will be explained later. Finally, they bear two little triangular
plates TT, fixed by means of two screws, which can be removed at will.
these plates TT are removed the discs are exactly circular, whilst they show the
profiles indicated in Figures 10, 13 and 14 if they are furnished with the
plates TT.
The inking cylinder. The inking cylinder is formed of a hollow metallic
tube MX2 0 1 (Figures 25 and 26): one half of the curved surface of this
cylinder is pierced with little holes, more or less distant from each other
according to circumstances; the surface so pierced with holes is externally covered
entirely by means of a piece of cloth Si S. One of the ends of this tube is
closed by means of a circular dise bearing an axle Q and an exterior toothed
plate R, RR the other end is closed by means of a similar disc bearing au
axle Q, and furnished with a toothed plate R2, this axle Q, is itself open and is
closed by means of a stopper T. The gearings R', and R have exactly the sume
mmmber of teeth as those of the numbering roll GG, the teeth being the same
size.
:
i
.
On removing the stopper T, the axle Q is opened and ink can be supplied into
the interior of the cylinder M² (12; by the openings this ink is spread on
the cloth S and keeps it constantly moistened. To prevent oscillations, the
axes Q' have small swellings or flanges and 7', which lightly rub against the
frame to which reference has been already made.
e. The box or frame. The box which bears the printing cylinder and the inking
cylinder has the rectangular form shown in Figure 3." It is composed of a

page_text: iece UVX bent at a right angle at V: the arm U V is pierced with an oval
pening V, and with a circular opening V. The branch X Y is jointed on an
xis dd', around which it can turn to assume the inclined position shown in full
ines in Figure 3, where the position at right angles to V X is represented by
lotted lines on the same figure; it bears an oval opening X, and at its
upper extremity, having the arrangement shown on the drawing, a circular
recess X2
A small steel plate Z very slender, bent at right angles, is fixed on the arm V X
by means of two screws, it has an opening into which just penetrates the little
projection of the arm XY; when the arm X Y is raised at right angles to the
frame VX, it is maintained in position by this small projection when it is
desired to depress it, it is sufficient to turn aside the spring %, which is flexible and
springy, so as to release the projection 2' from the hole or depression and to allow
the arm X Y to become inclined.
=
On the arm XY there is fixed laterally a small piece W having the angular form,
shown on the drawing, and which can turn along the axis B to assume the position
shown against the end of the arm or the position W1, shown in dotted lines
(Figure 3).
On the stem V X are placed two little springs 7, 8, and the spring 9 (Figure 1)
for the purposes hereinafter described.
A handle P3 is screwed to the frame V X, the extremity of which is arranged so
as to form a turn-screw P which serves for mounting and dismounting the
apparatus.
Finally a slender guard plate L M³ N³ ()³ surrounds the apparatus when it is
mounted and protects it from dust.
The action. Figures 1 and 2 show the apparatus all mounted and ready for use,
only, on Figure 1, the plate L M N (³ which would impede the view is supposed
to be removed.
It will be seen on Figures 1 and 2 that the axis QQ₁ of the inking cylinder
penetrates into the oval openings of the frame U V X Y; they are
supported on the springs 7 and 8 which constantly press the inking cylinder against
the printing cylinder; consequently the latter is always well and regularly inked;
besides, the gearings CC constantly mesh with gearings R' R', so that the printing
cylinder and the inking cylinder turn together and to the same amount. The
trunnions A and B of the discs enter into the openings V2 X2 in which
they turn.
The engraved plate and the exterior surface of the numbers or letters of the
rowels are always exactly on the same level as the curved surface of the striated
parts D, D' of the discs.
If the apparatus is applied on paper, the striated parts D¹, D¹ preventing the
printing roller from slipping, it turns around the axis A B, and, in this movement,
the projecting parts of the engraved plate and the numbers or letters of the rowels
will deposit on the paper the ink, taken on the cloth.
It will now be explained how, by means of this apparatus, consecutive numbering
is automatically effected. For that it is necessary that the angular stem W should
be applied against the enlarged end Y of the branch X Y.
The disc B, in turning, draws with it the connecting rod M, and when the end
of this is passing the stem W, it is raised, which causes the unit rowel to be
advanced one cog, and consequently to increase by a unit the number shown by the
numbering apparatus.
Then, at each turn of the disc D', the connecting rod M causes the unit rowel to
advance one unit, and this takes place up to the Figure 9. It is then necessary to
change the tens number. This is effected as follows:-
Every revolution, the small piston 1, of the units rowel, strikes against the
abutment S of the disc, this causes it to enter into one of the little openings of the
tens rowel, then, when the connecting rod M repasses W, the tens rowel advances

page_text: one cog in the same time as the units rowel, if it were for example 39, the tens
rowel passes to the figure 4 and the units to the figure 0, that makes 40.
Then the piston again comes to its primitive position, and it is the units rowel
which alone still turns during nine times after which, the tens rowel passes to a
following cog, to the number 5 then following on to 9. Here, it now becomes
necessary to change the hundreds number. This is effected as follows:-
The tenth opening of the tens rowel bears a little piston 7. When the piston /
on the units rowel passes the abutment S, it it pushed back and finding itself facing
the piston on the hundreds rowel, this is also pushed back and will then enter into
one of the openings of the hundreds rowel, then the units, teus and hundreds
rowels become conjointed, and when the connecting rod M turns the units rowel
one cog, the tens and the hundreds rowels will he turned at the same time a cog:
if it were for example at 399, it would then come to 400. Then the rowels would
become independent of one another: the units rowel will make only nine revolutions
and will number up to 400; it will then cause the tens rowel to advance a division,
which will give 410, then it will turn alone up to 419, will cause the tens rowel to
tura in order to give 420, and thus on up to 499, when the hundreds rowel will be
again partly revolved as has been explained earlier on, in order to give 300 and
then on up to 999.
If the apparatus is furnished with four rowels, the fourth is advanced a division
each time that the hundreds one completes a revolution, that is to say has gone
from 0 to 9.
With four rowels from 0 to 9999 may be enumerated.
It has been previously stated that the dises (Figures 10, 13 and 14) were
furnished with an angular part TT', which has for its object to stop the stamp
when it has made an impression. When it is lifted from the surfer of the paper,
the spring 9, which rests against the crank (), causes the engraved plate to be
rapidly drawn to the back." If the angular parts TT are removes, the dises
become circular. Then if the stamp is applied on paper by simply pressing it. it
will no longer he stopped, when it has made a revolution by the angle, and it will
print a series of impressions which will be all exactly the same distance from que
another and which will bear successive number (see Figure 5).
In the preceding explanations, it has been supposed that all the parts of the
impression were printed with the same ink, but, if desired, there may be used two
inks of different colours. In that case, the inking cylinder is divided into two
compartments (Figures 29 and 30). the one part of which is supplied for instance
with red ink and the other with blue. The cylinder being pierced with holes, as
has been previously seen. each ink moistens the cloth which surrounds the corre-
sponding part of the cylinder; and, as in the working, the printing cylinder las
exactly the same angular speed as the inking cylinder, the same parts of the
engraved plate and of the rowel letters or figures, will be always applied on the
same part of the cloth and consequently will be always impregnated with que or
other of the inks.
The rowels containing the type or letters for printing the date may be altered or
revolved by hand.
Figures 31 and 32 represent a printing cylinder arranged for stamps to print
impressions of two different colours: the fixed and engraved plate is placed at 7
and is separated from the numbering apparatus which is placed at Z. There is no
dating apparatus, but only a numbering apparatus.
In place of causing the projecting parts of the rowels to abut into the middle of
the engraved plate as on Figure 3, there may be a fully engraved plate and the
movable letters and numbers printed at one side or around said plate.
The apparatus can, if desired, he simplified, in that it may bear only an engraved
plate, or that it may hear, at the same time, rowels which are not automatically
actuated, but which are moved by hand (Figure 33). In this case the printing and
the inking cylinders have no necil of being furnished with gearing (Figures 27, 28)

page_text: This latter is completely surrounded with cloth and it is constantly in contact with
the first which is consequently always impregnated with ink.
Dated this 6th day of Santambor 1800.
WM. P. THOMPSON & Co.,
A grants for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and appertaining to Hand Stamps for Dating,
Numbering, or the like.
A communication from abroad by MANUEL RODRIGUEZ Y GARCIA and EMILE
MARTY LOPEZ DEL CASTILLO, both of Valencia, in the Kingdom of
Spain, Engraver and Property Owner respectively.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for
Foreign Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street,
Manchester, both in the County of Lancaster, and 323, High Holborn, in the
County of Middlesex, Civil 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 :-
The object of this invention is a hand stamp which may be arranged to serve
either as a simple stamp for printing that which is engraved on a plate, or as a
numbering stamp, or as a numbering and dating stamp.
Referring to the drawings accompanying the Provisional Specification, and to the
additional drawings filed herewith
Figure is a front elevation of a stamp constructed in accordance with this
invention, and applicable for use in printing the impression of matter engraved or
otherwise on a plate, and also provided with adjustable figures or letters for printing
the date, and for printing consecutive numbers. The latter, namely, those for
printing numbers, may be automatically changed by the action of stamping.
Figure 2 is an elevation at right angles to Figure 1.
Figure 3 is a similar view to Figure 1, but parts are supposed to be removed, and
others are shown as occupying different positions.
Figure is an elevation at right angles to Figure 3.
Figure 5 shows a view of a series of impressions which may be produced by this
stamp.
The remaining figures will be hereinafter referred to.
The invention will first be described in connection with a numbering and dating
stamp which is the most complicated, and it will afterwards be explained how it
may be simplified in the two other cases.
To render the description more eclear, the apparatus will be divided into three
parts, namely, a, the numbering apparatus (Figures 6 to 22); b, the inking cylinder
(Figures 23 to 26); c, the frame or box (Figures 3 and 4).
a. Numbering apparatus. The numbering apparatus is composed of a hollow
cylinder ABCD, of steel, bronze, copper, or any other suitable metal carrying
an engraved plate E F, soldered or otherwise suitably joined thereto. This
cylinder is furnished with two gear wheels C¹ C³, one of its ends is formed by
means of a disc shown in detail by Figures 9, 10 and 11, and the other by the
disc shown by Figures 12, 13 and 14; these two discs are fixed on the cylinder
by means of screws; the part a bed of the one, and the part a¹ b c d of the
other enter into the interior of the cylinder. These two discs will be described in
detail hereinafter.
In the interior of the cylinder A B C D there is a spindle A', forming an axis,
and one of the extremities of which engages in the cavity I of the first disc
(Figure 10) and the other in the cavity of the second (Figure 13). On the said
spindle is placed a certain number of castors or rowels shown by Figures 15 to 20.
The number of these rowels is variable according to the matters which are to be
printed.

page_text: In the pattern shown on the drawing herewith, there are :—
1st. Four rowels for the numbering apparatus, each of which bears on its circum-
ference, in relief, the numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 (Figures 16 and 19); the
rowel bears the unit numbers; m², the teus; m³, the hundreds; m², the
thousands, so that, with these four rowels, 0 to 9999 may be enumerated; if there
were five. the numbers could be brought up to 99,999, if six, np to 999,999,
etcetera.
2nd. Five rowels for the date, four of which, n², n², n², nº, hear numbers succes
sively from 0 to 9; the middle one is divided into twelve equal parts, bearing
each the numbers from 1 to 12 written in Roman characters. The name of each
month of the year can also be written in letters.
Each of the rowels m', m², m² m² of the mumbering apparatus is composed of two
plates the one 1--1, Figure 16. which hears, in relief, on its periphery, the
numbers or the letters; the other 2-2 which is formed with detent teeth, as
indicated in Figure 17. The plate 2-2 of the unit rowel bears ratchet teeth 3
(Figure 20 in place of the simple detent teeth 4, shown in Figure 17. The
pieces are connected to the pieces 2 2 by means of two little steel pins or
rivets 56. a small space being left between the pieces.
In the interior of each rowel a little rol, provided with a spring, is fixed,
the shank of the tens or hundreds rowels (Figure 21 is, in length, exactly equal
to the thickness of the rowels, as seen on the drawings; the shank of the
units rowel is a little longer than the thickness of the rowel (Figures 19 and 22).
Fixed in the interior of the cylinder, there is placed a comb plate, which bears
enteles K, Figure 6, which engage in the teeth of the pieces 2-2 of the rowels, so
as to maintain the latter in place.
Each of the plates 2-2 of these rowels, excepting the units one, bears ten little
holes t, the use of which will be shown later on.
The plate which bears the catches K is fixed on the cylinder by means of two
little keys K, shown in detail in Figures 34 and 35.
The disc represented by the Figures 9 to 11 carries a small lever M M, jointed
round the axis N; it is formed of two parts, and the head M' may be slightly
inclined around the axis N. In the inner face of the dise is formed an annular
cavity or cam groove, in which is placed a part S, which forms an abutment and
the object of which will be explained Inter on.
The second dise, represented by Figures 12 to 14, simply bears a little crank ()
for a purpose heroinafter described.
These two dises are furnished with grooves D'. Figure 11, and D', Figure 12, so
as not to slip on the paper, as will be explained later. Finally, they bear two little
triangular plates TT, fixed by means of two screws, which can be removed at
will. When these plates T T are removed, the discs are exactly circular, whilst
they show the profiles indicated în Figures 10, 13 and 14, if they are furnished with
the plates TT'.
b. The inking cylinder. The inking cylinder is formed of a metallic
tube M² N² ² (Figures 25 and 26): one half of the curved surface of this
cylinder is pierced with little holes more or less distant from each other,
according to circumstances; the surface so pierced with holes is covered on the
outside by means of a piece of cloth SS. One of the ends of this tube is closed
by means of a circular disc bearing an axle Q and an exterior toothed plate R
the other end is closed by means of a similar disc bearing an axle Q', and furnished
with a toothed plate R, this axle Q', is itself open and is closed by means of a
stopper T. The gearings R', and have exactly the same number of teeth as
those of the numbering roll G (1, the teeth being the same size.
On removing the stopper T, the axle Q', is opened and ink can be supplied into
the interior of the cylinder M² N O P by the openings, this ink is spread on
the cloth Sand keeps it constantly moistened. To prevent oscillations, the
axes Q and Q have small swellings or flanges and q', which lightly rub against
the frame to which reference has been already made.

page_text: c. The box or frame. The box, which bears the printing cylinder and the inking
cylinder, has the rectangular form shown in Figure 3. It is composed of a
piece UV X bent at a right angle at V; the arin UV is pierced with an oval
opening V, and with a circular opening V2. The branch X Y is jointed on an
axis dd, around which it can turn to assume the inclined position shown in full
lines in Figure 3, where the position at right angles to V X is represented by
dotted lines on the same figure; it bears an oval opening X¹, and at its upper
extremity, as shown on the drawing, a circular recess X².
A small steel plate Z, very slender, bent at right angles, is fixed on the arm V X
by means of two screws, it has an opening into which the little projection =¹
of the arm X Y enters; when the arm X Y is raised at right angles to the
frame V X, it is maintained in position by this small projection ; when it is
desired to depress it, it is sufficient to turn aside the spring Z, which is flexible
and springy, so as to release the projection 2' from the hole or depression z and to
allow the ann X Y to become inclined.
On the arm X Y there is fixed laterally a small piece W having the angular
form, shown on the drawing, and which can turn round the axis B along the
arm XY to assume the position shown against the end Y of the arm, or the
position W, shown in dotted lines (Figure 3).
On the stem VX are placed two little springs 7, 8 and the spring 9 (Figure 1)
for the purposes hereinafter described.
A handle P3 is screwed to the frame V X, the extremity of which is arranged
so as to form a turn-screw P which serves for mounting and dismounting the
apparatus.
Finally, a slender guard plate L³, M³, N³, Oª surrounds the apparatus, when it is
mounted, and protects it from dust.
The action. Figures and 2 show the apparatus all mounted and ready
for use, only, on Figure 1, the plate L M N O³, which would impede the
view, is removed.
It will be seen, on Figures 1 and 2, that the axis Q Q of the inking cylinder
penetrates into the oval openings VX' of the frame UV X Y; they are sup-
ported on the springs 7 and 8, which constantly press the inking cylinder against
the printing cylinder; consequently, the latter is always well and regularly inked;
besides, the gearings C C constantly mesh with gearings R2 R',, so that the
printing cylinder and the inking cylinder turn together and to the same amount.
The trunnions A and B' of the discs enter into the openings V2 X², Figure 3. in
which they turn.
The engraved plate and the exterior surface of the numbers or letters of the
rowels are always exactly on the same level as the curved surface of the milled
parts D, D' of the discs.
If the apparatus is applied on paper, the milled parts D', D' preventing the
printing roller from slipping, it turns around the axis A. B, and, in this movement,
the projecting parts of the engraved plate and the numbers or letters of the rowels
will deposit on the paper the ink, taken on the cloth.
It will now be explained how, by means of this apparatus, consecutive mumbering
is automatically effected. For that it is necessary that the angular stem W should
be applied against the enlarged end Y of the branch XY (Figure 3).
The disc D', in turning, draws with it the connecting rod M (Figure 9) and,
when the end of this is passing the stem W it is raised, which causes the unit rowel
to be advanced one cog, and, consequently, to increase, by a unit, the mumber
shown by the numbering apparatus.
When the unit roll has advanced one cog, the connecting rod returns to its normal
position by the action of the spring r. Therefore, at each turn of the disc. D', the
connecting rod M causes the unit rowel to advance one unit, and this takes place up
to the figure 9. It is then necessary to change the tens number. This is effected as
follows:-
Every revolution, the small piston l' (Figure 22) of the units rowel strikes

page_text: against the abutment S of the dise, this causes it to enter into one of the little
openings of the tens roll, then, when the connecting rod M repasses W, the tens
rowel advances one cog in the same time as the units rowel, if it were, for example, 39,
the tens rowel passes to the figure 4 and the units rowel to the figure 0, which
makes 40.
Then the piston again comes to its primitive position, and it is the units rowel
which alone still turns during nine times; after which, the tens rowel passes to a
following cog, to the number 5, then following on to 9. Here, it now becomes
necessary to change the hundreds number. This is effected as follows:-
The tenth opening of the tens rowel bears a little piston F. When the piston
on the units rowel passes the abutment S, it is pushed back and finding itself facing
the piston on the hundreds rowel, this is also pushed back and will then enter
into one of the openings of the hundreds rowel, then the units, tens and hundreds
rowels become conjointed, and, when the counorting rod M turns the units rowel one
eng, the tens and the hundreds rowels will be turned at the same time a cog; if it
for example, at 399, it would then come to 400. Then the rowels would
become independent of one another: the units rowel will make only nine revolutions
and will number up to 409; it will then cause the tens rowel to advance a division,
which will give 410, then it will turn alone up to 419, will cause the tens rowel to turn
in order to give 420, and thus on up to 499, when the hundreds rowel will be again
partly revolved as has been explained earlier on, in order to give 500 and then on
up to 999.
were,
If the apparatus is furnished with four towels, the fourth is advanced a division
each time that the hundreds one completes a revolution, that is to say,
has gone
from 0 to 9.
With four rowels, from 0 to 9999 may he enumerated, with five rowels, up to
99.999, and so on.
It has been previously stated that the discs (Figures 10, 13 and 14) were furnished
with an angular part TI T', which has for its object to stop the stamp when it has
made an impression. When it is lifted from the surface of the paper, the spring 9,
which rests against the crank O), Figure 1, causes the engraved plate to be rapidly
drawn to the back. If the angular parts T T are removed, the dises become
circular. Then, if the stamp is applied on paper by simply pressing it, it will no
longer be stopped, when it hits made a revolution by the angle, and it will print a
series of impressions which will be all exactly the same distance from one another,
and which will bear successive numbers (see Figure 5)."
In the preceding explanations, it has been supposed that all the parts of the
impression were printed with the same ink, but, if desired, there may be used two
inks of different colours. In that case, the inking cylinder is divided into two
compartments (Figures 29 and 30), the one part of which is supplied, for instance,
with red ink and the other with blue. The cylinder being pierced with holes, as
has been previously seen, each ink moistens the cloth which surrounds the corre
sponding part of the cylinder; and, as in the working, the printing cylinder hins
exactly the same angular speed as the inking cylinder, the same parts of the
engraved plate and of the rowel letters or figures will be always applied on the|
same part of the cloth and, consequently, will be always impregnated with one or
other of the inks.
The rowels containing the type or letters for printing the date may be altered or
revolved by hand.
Figures 31 and 32 represent a printing cylinder arranged for stamps to print
impressions of two different colours; the fixed and engraved plate is played at
and is separated from the numbering or dating apparatus which is placed|
at ZZ.
Figure 37 of the drawings accompanying this Specification shows a variation
which can be employed in place of the arrangement shown in Figures 1 and 2. It
will be seen that the inking cylinder is placed at the side of the printing cylinder,
instead of being above or below it. Its plate L³, M³, N³, O³ has a slightly different

page_text: form from that described previously, and it has a flat part L³ L, the edge of which
serves as a guide on the paper.
Figure 38 is a front view of the same arrangement. The tube forming the ink
holder is closed by means of a rod T fitted with a screw, as shown on Figure 41.
Figure 40 shows the frame holding the printing cylinder represented in detail on
Figure 39. This cylinder can be provided with an engraved plate of copper
(Figure 42) or even an indiarubber plate (Figure 43). In this latter case, the
indiarubber plate is fixed on a very small copper plate.
In place of causing the projecting parts of the rowels to abut into the middle of
the engraved plate, as on Figure 5, there may be a fully engraved plate and the
movable letters and numbers printed at one side or around said plate.
The apparatus can, if desired, be simplified, in that it may bear only an engraved
plate, or that it may hear, at the same time, rowels which are not automatically
actuated, but which are moved by hand (Figure 33). In this case, the printing
and the inking cylinders have no need of being furnished with gearing (Figures 27, 28).
This latter is completely surrounded with cloth and it is constantly in contact with
the first, which is, consequently, always impregnated with ink.
Further, the inking cylinder does not require to have the angular parts T¹ T₁₁,
it can simply have a flattened form on one part of its contour, as shown in
Figure 36.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondents, I declare that what I claim is:
:-
1. In an automatically changing numbering and dating hand stamp, the combination
of a frame uray, the branch ry of which is jointed at d to the remainder and is
furnished with an angular piece W, the said frame being adapted to carry the
inking cylinder and the printing cylinder, substantially as described.
2. In a stamp, the inking cylinder composed of a hollow cylindrical body and a
hollow axis and adapted to carry and disburse either a single ink or two inks of
different colours, substantially as described.
3. In a stamp such as described, the printing cylinder having interiorly an axis
adapted to carry the rowels bearing the numbers or the letters in combination with
the connecting rod M engaging a ratchet wheel carried by said axis, whereby, when
said rod is actuated by reason of the revolution of said cylinder, one or more of the
numbers or letters are changed, substantially as described.
4. In a stamp such as described, the letter or number carrying rolls, each com-
posed of two plates 1-1 and 2-2, united together by two netallic rods, the one
of these plates bearing in relief the numbers or letters, and the other being furnished
with detent or ratchet teeth, substantially as described and shown.
D
WM. P. THOMPSON & Co.,
Agents for the Applicant.