Year: 1888

page_text: Date of Application, 5th June, 1888
Complete Specification Left, 2nd Mar, 1889
Complete Specification Accepted, 11th May, 1839
I, ALEXANDER MELVILLE CLARK, of the firm of A. M and Wm Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of this invention (a communication to me from
abi oad by Frank Coddington Moore, of the City, County and State of New York,
United States of America, Gentleman) to be as follows
-
This Invention relates to an improved adding machine in which a set of numbering
dises are employed.
The mechanism is mounted in a case, at the front of which there is a plate
hiving openings at which the numbers of the numbering discs appear. Sand plate
is also formed with a set of long, and a set of short, slots. In each of the set of
long slots work a rack pin and pointer, both connected to a rack arranged at the
back of the front plate in line with the slots for turning the numbeing dises by
any suitable connections thereto, and in each of the short slots works a thumb piň
for operating a carrier, hereinafter described, for adding one to its respective
adjoining left hand numbering dise There is adjacent to each long slot upon the
In con-
face of the plate, a scale of consecutive numbers from naught to nine
nection with this index, each rack is operated longitudinally for turning the discs,
the pointers indicating on the scales the distance of movement necessary to bring
the iequired number opposite the openings for the numbering discs in the front
plate of the machine. Each rack is connected to its respective numbering disc by
the teeth of the rack meshing with a pinion made fast to a ratchet wheel, and
together placed loosely upon the axis of the disc which is recessed sufficiently to
admit the turning of the ratchet wheel therein Upon the downward movement of
the rack, the pinion is locked to the disc by a pawl fixed within the recess of the
disc and acting on the said ratchet wheel. The upward movement turns the pinion
and ratchet wheel backward freely without engaging the disc, the pawl or click of
the ratchet only acting in the forward movement of the ratchet wheel to lock the
ratchet and disc together which is caused by the downward movement of the rack,
as before described. The ratchet wheel has 10 notches or teeth acted upon by the

page_text: pawl to correspond with the 10 notches upon the edge of the disc A pawl prevents
backward movement of the disc. Each numbeing disc 13 journaled in a frame
composed of side plates separated by end blocks, and the rack runs upon the edge
of one of the side plates The opposite side plate is cut away, to form a clearance
for the pin in the side of the numbering disc. Upon the outer and inner edges of
the side plates are held two plates which are united by blocks at the ends and which
are adapted to move freely between the side plates, so that they may have independent
longitudinal movement upon the frame They are each provided with an apron
adapted to cover the front edge of its respective numbering disc when the plates are
in their lowermost position. When the said plates are elevated, the aprons are carried
above the openings for the numbering discs, so that the numbers in fiont on the discs
can be seen The plates are moved longitudinally by pins in the numbering discs,
said pins being arranged to strike a shoulder on the one plate to effect the downward
movement and a shoulder of the other plate to effect the upward movement, if said
upward movement should not have been effected by the upward movement of a thumb
pin with which the first plate is provided One of the sliding plates carries two pawls
which are offset at one side of the plates and arranged to engage notches of the
adjacent left hand numbering disc, so that with each upward movement of the plates,
the one pawl serves to communicate motion to the neighboring left hand numbering
disc for carrying the tens. The second pawl is to prevent the plates from dropping
down of their own weight. To the front edge of each of the side plates constituting
the frame, there is a pawl for locking the adjacent rack, the said pawls being adapted
to enter notches in the said racks. The said locking pawls are slotted diagonally, and
a small pin attached to the sliding plates works in said slot, so that the upward
movement of the plates will swing the pawls out of the notches and release the racks.
The downward movement of the plates will swing the said pawls back into the said
notches and again lock the racks from upward movement
The above description is that of one frame composed of the side plates and of the
end blocks and containing the numbering disc, the rack and its connections with said
disc, and the front and rear sliding plates As many of these frames, as desired may
bo placed together side by side in one casing, so that practically there is no limit to
the scope of the machine, as a whole, and by means of the pawls lapping over to each
left hand numbering disc, positive motion may be communicated from one complete
frame to all of the left hand numbering discs, so that no matter how extended the
machine may be, the carrying from one disc to the other will be as perfect at the
extreme left of the machine, as at the first or second column
Addition upon this machine may be commenced at either figure of the sum desired
to be put on the machine. For example; to commence with 375, add 5 fist by tho
units' rack, 7 by the tens' rack, and 3 by the hundreds' rack or vice versa, add 3 first
on the hundreds' rack, then 7 on the tens' rack, then 5 on the units' rack, or even
add 7 on the tens' rack first; thus commencing any where, but with care that the
figures are put on by their respective rack, namely; the units by the units' rack, the
tens by the tens' rack, hundreds by the hundreds rack, the thousands by the thousands
rack, and so on indefinitely.
When naught is shewn in all the openings at which the numbers on the discs
appear, and the pointers are at naught in the scales, the machine is
"clear , (of all
sums) and ready for operation The operation is simply pushing up respectively the
rack pin until the pointer (from naught) reaches (in the scale) the figure desned and
then drawing down said rack pin until the pointer is back again at naught For
example; in 375 to commence (at the left of the sum) with 3, first, push up the
hundreds rack pin until the pointer reaches 3 on the scale, and then draw the said
rack pin downward until the pointer is back again at naught, this will cause the
hundreds rack to turn the hundreds numbering disc se that the figure 3 with its
complemental figure (described hereafter) will be seen at the hundreds opening
Next, push up the tens' rack pin until its pointer reaches 7 in its scale and then draw
said rack pin downward until the pointer is back again at naught This will in like
manner turn the tens disc and cause 7 (with its complemental figure) to appear at the
n

page_text: "
It will
tens' opening. Next, push up the units rack pin until its pointer reaches 5 and then
draw said rack pin downward until its pointer is back again at naught, which will
cause the units rack to turn the units disc and bring 5 (with its complemental figure)
to the units opening
Now, in the openings the figures appear thus 3, 7, 5, The
small figures are the complemental figures, to be used in clearing "the machine
when desirable, by simply adding them (the small figures) on the machine by their
respective racks. If, for example, it should now be desired to add 19 to the number 375,
the tens rack pin would be pushed up until the pointer indicates 1, and then drawn
down until the pointer is back again at naught, this would turn the tens disc one
notch and 8 (with its complemental figure) would appear in tens'
opening. Then,
the units rack pin must be pushed up until the pointer indicates 9 and then drawn
down, as before, to naught. This will bring 4 with its complemental figure in the
units' place, and at the same time will cause the pin in the side of the units' numbering
disc to strike the shoulder of the front sliding plate and force said plate and the back
plate with the pawls downward This will lower the apron over the units opening,
so that the number 4 and its complemental figure therein cannot be seen.
also cause the pawl on the sliding plate to enter a lower notch in the tens'
numbering disc, and it will also cause the slotted pawl to enter the notch in the
rack and lock the tens rack from upward movement If the operator wishes to
know the number now concealed in the units opening he must push up the units'
thumb-pin to the top of the slot which of course has been drawn down therefrom
to the bottom of said slot by the downward movement of the sliding plates. This
will cause the plates to move upward, releasing the lock upon the tens rack, also
causing the units pawl to turn the tens di-e one notch, bringing 9 into the tens
opening, and thus adding one to the tens disc, at the same time lifting the
apron from the units' opening, revealing the figure 4 and its complemental 6, which
were thero concealed. In case the operitor should neglect to push up the thumb
pin, adding could still be continued by the units rack, the revolution of the units'
numbering disc causing the pin thereof to push up the plates So the tens rack
would be unlocked, the units apion lifted, and by the units pawl one would be
added to the tens' numbering disc automatically.
When an apron covers any of the openings, the thumb pin is always at the bottom
of the slot Pushing the pin up to the top of the lot adds 1 to the next adjoining
disc, but until said thumb pin on the right is pushed up, the rack of the disc next
adjoining is locked and no addition by that rack can be effected. So the proper
carrying to the adjoining disk must be accomplished (by the thumb pin or by the
automatic action of the machine) before any addition can be had thereupon The
thumb pin is never to be pulled down by the hand, the downward movement of
the pin being exclusively the work of the machine, but it may be pushed up by the
thumb at any time without interfering with the addition going on by its respective
rack and disc
In the example of the addition of 375 and 19 the result is thus shewn in the
openings 3, 91 4. Now to clear the machine if no further amount is to be added
to 394, add the small (complemental) figure in the openings each by its respective
rack but always, in "clearing," commencing at the right hande the units column,
for instance, having to clear the machine of the sum of 394, add the complemental
figure 6 by the units rack, this will bring down the apron and thumb pin, which pu
being pushed up, naught (and complemental figure) appear in the units opening,
and 1 having been added to 9 in the next opening the apron and thumb pin of the
tens column will be brought down, push up the tens thumb-pin and naught appears
in the tens opening and 1 is carried to 3 and 4 will appear in the hundreds opening;
now add the 6 by the hundreds rack and the apron and thumb pin of the hundreds
column will be brought down, finally pushing up the hundreds thumb pin will shew
the openings clear 0% 0
A special feature of this machine is that it has an "apparent carrying" and an
"actual carrying" The apparent carrying is when at the instant a ten of any disc
has arrive at an opening the sliding plates, etc.; are moved downward automatically,

page_text: covering sand opening and concealing the figures therein by an apron and at the same
time locking the adjoining disc rack." The actual carrying is when by the thumb pin,
or automatically by the evolution of the disc, the plates, etc ; are moved upward
hifting the apron from the opening to shew the figures thereon, unlocking the adjoming
disk rack, and by the pawl now actually adding one to the adjoining left hand
numbering disc. Between the downward and the upward movement of said plates, etc;
the actual cariying is thus interrupted by a period of rest which may continue even to
the instant before another one on the same disc is to be carried This principle of a
period of rest or deferred action between an apparent and the actual carrying is
believed to be new in adding machines, and in the invention and construction of this
machine has been especially studied with a view to avoid the serious obstacle in other
machines known, and commonly termed, as "the nine holes te for example to add
1 to 99,999 to provide and shew 100,000; in other machines to produce this result
6 sets of wheels, levers, slides, springs, bearings, or other items of machinery, must be
in action at the same instant, thus causing great fiction and a continual loss of power
in the motion communicated from right to left until at the extreme left the carrying
is barely if ever accomplished, therefore limiting said machine in its power to that
point. By the principle of deferred action or period of rest, it is plainly evident that
in this machine no such friction or any loss of power whatever can occur, and an
indefinite number of frames with the discs, etc., side by side, may be operated from
one end to the other without fear of the
nine holes
o any other obstacle, that is
to say, for example, the 50th o1 0 000th of a row of numbering discs in then frames
could be operated in the same way as the unit or any other column and just as easily,
without any possible failure in carving; therefore this machine may be said to be
unlimited in its power to any point of numeration possible
Dated this 5th day of June 1000
"
A MELVILLE CLARK
By A. M & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.

page_text: Improvements in Adding Machines.
I, ALEXANDER MELVILLE CLARK, of the firm of A. M and Wm. Clark, of 53, Chancel y
Lane in the County of Middlesex, Fellow of the Institute of Patent Agents, do
hereby declare the nature of this invention (a communication to me from abroad by
Frank Coddington Moore, of the City, County, and State of New York, United
States of America, Gentleman) and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement :-
This Invention relates to an improved adding machine in which a set of numbering
discs are employed
Reference is to be had to the accompanying drawings forming part of this speci-
fication, in which figure 1 is a front elevation of the new adding inaclune shewing
only the units, tens, and hundreds columns and showing the position of the parts
when the machine is clear, the discs and pointers standing at nought Figure 2 is a
rear elevation of the machine Figure 3 is a front elevation of the machine with the
front plate removed Figure 4 is a vertical sectional elevation, taken on line
figure 3 Figure 5 is a similar view, taken on line y y figure 3 Figure 6 is a side
elevation of one of the frames and the numbering disce and the rack for operating
said disc. Figure 7 is a front elevation of the same Figure 8 is a perspective
view of one of the front plates and apron attached thereto Figure 9 is a perspective
view of one of the back plates. Figure 1) is a side elevation of one of the complete
counting frames, removed from the main casing, and figure 11 is a transverse sectional
elevation of the same, taken on line z z figuie 10° Similar letters of reference
ndicate corresponding parts in all the figures
In figure 1,
represents the main frame in which the numbering discs B B and
other working parts of the machine are held At the front of the machine is held
the plate C in which are formed the openings c c in which the numbers of the
numbering discs B appear Said plate is also formed with the long slots c¹ and
short slots c. In each of the slots cl work a rack pin d and pointer d' both connected
to a rack D, see figure 4, arranged back of the plate C in line with the slots c¹ for
turning the numbering discs B by any suitable connections thereto. In each of the
short slots c works a thumb-pin e each for operating a carrier, hereinafter described,
for adding one to its respective adjoining left-hand numbering disc Adjacent to
each slot is formed upon the face of the plate C a scale f of consecutive numbers
from nought to nine, as shewn in figure 1. In connection with this index each
rack D is operated longitudinally for turning the discs B, the pointers d¹ indicating
on the scales the distance of movement necessary to bring the required number into
the openings c
By figures 4 and 5, it will be seen that each rack D is connected to
its respective numbering disc B by the teeth d² of the rack meshing with a pinion D¹
made fast to the ratchet wheel D³ and together placed loosely upon the axis of the
dise which is recessed sufficiently to admit the turning of the ratchet wheel therein.
Upon the downward movement of the rack D the pinion D' is locked to the disc by

page_text: When
the pawl or click & fixed upon and within the recess of the disc and acting on the
said ratchet wheel It will be seen that the upward movement turns the united
pinion and ratchet wheel backward freely without engaging the disc, the piwl or
chck d³ of the ratchet only acting in the forward movcinent of the ratchet wheel D³
to lock the ratchet and disc together which is caused by the downward movement
of the rack, as before described The ratchet wheel has 10 notches or teeth acted
upon by the pawl d³ to correspond with the 10 notches f¹ upon the edge of the disc.
A pawl prevents backward movement of the disc. Each numbering disc B is
journaled in a fiame composed of the side plates F F separated by end blocks F³.
The rack D runs upon the edge of the side plate F¹. The opposite side plate F is
cut away, as shewn at 9, figure 7, to form a clearance for the pin h in the side of
the numbering disc. Upon the outer edges of the side plates F F is held the plate G
and upon their inner edge the plate G'. These two plates are united by the blocks G'
at the ends which are adapted to move freely between the side plates F F so that
the plates G G may have independent longitudinal movement upon the frame
composed of the said plates F F and blocks F. The plates G are each provided
with an apron H adapted to cover the front edge of its respective numbering disc B
when the plates G G₁ are in their lowermost position, as shown in figure.
the said plates are elevated, said aprons are carried above the openings e so that the
numbers in front on the discs can be seen. The plates G G are moved longitudinally
by the pins h in the numbering discs, said pins being arranged to strike the shoulder ¹
of the plate G (as seen in figure 3) to effect the downward movement and the
shoulder of the plate G¹ to effect the upward movement, if said upward movement
should not have been effected by the upward movement of the thumb-pin e (see
figures 2 and 3). The plate G¹ carries the two pawls J J' which are offset at one side
of the plates and arranged the pawl J to engage the notches fl of the adjacent left
hand numbering disc B so that with each upward movement of the plates G G¹, the
pawl J serves to communicate motion to the neighboring left hand numbering disc
for carrying the tens, whilst the pawl J¹ is a friction piwl to prevent the plates G G¹
from dropping down of their own weight To the front edge of each of the side
plates Fis pivoted a locking pawl & for locking the adjacent rack D the said pawls
being adapted to enter notches m in the said racks, as shown in figure 3. The said
locking pawls are diagonally slotted, as shewn at n, and a small pin n¹ attached to the
plates G works in said slot, so that the upward movement of the plates G will swing
the locking pawls k out of the notches m and thus release the racks D. The downward
movement of the plates G will swing the said pawls back into the said notches and
again lock the racks from upward movement
The above description is that of a frame composed of the side plates F F and of
the end blocks F and containing the numbering disc B, the rack D and its connections
with said disc B, and the front and rear plates G G¹. As many of these frames as
desired may be placed together side by side in one casing so that practically there
is no limit to the scope of the machine as a whole, and by means of the pawls J
lapping over to each left hand numbering disc, positive motion may be communicated
from one complete frame to all of the left hand numbering discs, so that no matter
how extended the machine may be, the carrying from one disc to the other will be
as perfect at the extreme left of the machine as at the first or second column.
Addition upon this machine may be commenced at either figure of the sum desired
to be put on the machine. For example, to commence with 37.) add 5 first by the
units rack, 7 by the tens rack, and 3 by the hundreds rack, or vice versû, add 3 first
on the hundreds rack, then 7 on the tens rack, then 5 on the units rack, or even
add 7 on the tens rack first, thus commencing anywhere but with care that the
figures are put on by their respective rack, namely the units by the units rack, the
tens by the tens rack, hundreds by the hundreds rack, the thousands by the thousands
rack, and so on indefinitely
Referring to figure 1, it will be seen that nought appears in the openings cc and
when nought is so shown in all the openings cc and the pointers at nought in
the scales the machine is "clear" (of all sums) and ready for operation. The operation

page_text: <6
is simply pushing up respectively the rack pin d until the pointer d¹ (from nought)
roaches (in the scale f) the figure desired and then drawing down said lack pin
until the pointer is back again at nought For example, in 375 to commence (at
the left of the sum) with 3, first push up the hundreds rack pin d until the pointer d
reaches 3 on the scale f and then draw the said lack pin downward until the pointer
is back again at nought this will cause the hundreds rack D to turn the hundreds
numbering disk B so that the figure with its complemental figure (described
hereafter) will be seen at the hundreds opening c. Next push up the tens rack pin d
until its pointer d¹ reaches 7 in its scale f and then draw said rack pin downward
until the pointer is back again at naught This will in like manner turn the tens
disc B and cause 7 (with its complemental figure) to appear at the tens opening c.
Next push up the units rack pin d until its pointer d' reaches 5 and then draw said
rack pin downward until its pointer is back again at nought which will cause the
units rack to turn the units disc B and bring 5 (with its complemental figure) to
the units opening c
Now, in the openings the figures appear thus 3, 7, 5, The
small figures are the complemental figures to be used in clearing" the machine
when desirable by simply adding them (the small figures) on the machine by their
respective lacks If, for example, it should now be desired to add 19 to the
number 375 the tens rack pin would be pushed up until the pointer indicates 1 and
then drawn down until the pointer is back again at nought; this would turn the tons
disc B one notch and 8 (with its complemental figure) would appear in tens
opening c Then the units rack pin must be pushed up until the pointer indicates 9
and then drawn down as before to nought. This will bring 4 with its complemental
figure in the units' place and at the same time will cause the pin h in the side of
the units numbering disc to strike the shoulder h' of the plate G and force said plate
and the back plate G¹ with the pawls J J' downward. This will lower the apron H
over the units opening e so that the number 4 and its complemental figure therein
cannot be seen. It will also cause the pawl J to enter a lower notch in the tens
numbering disc, and it will also cause the pawl k to enter the notch m and lock the
tens rack from upward movement If the operator wishes to know the number now
concealed in the units opening, he must push up the units thumb pine to the top of
the slot which of course has been drawn down therefrom to the bottom of said slot
by the downward movement of the plates G G¹ This will cause the plates G G¹ to
move upward, releasing the lock upon the tens rack D, also causing the units
pawl J to turn the tens disc one notch bringing 9 into the tens opening and thus
adding one to the tens disc at the same time lifting the apron H from the units opening,
revealing the figure 4 and its complemental 6 which were there concealed. In case
the operator should neglect to push up the thumb pin e, adding could still be continued
by the units rack, the revolution of the units numbering disc causing the pin h thereof
to come against the shoulder and push up the plates G G¹ So the tens rack
would be unlocked, the units apron lifted, and by the units pawl J one would bo
added to the tens numbering disc automatically When an apron H covers any of
the openings c, the thumb pin is always at the bottom of the slot Pushing the pin
up to the top of the slot adds 1 to the next adjoining disc, but until said thumb pin
on the right is pushed up, the rack of the disc next adjoining is locked, and no
addition by that rack can be effected. So the proper carrying to the adjoining disc
must be accomplished (by the thumb pin e or by the automatic action of the maclune)
before any addition can be had thereupon The thumb pin is never to be pulled down
by the hand, the downward movement of the pin being exclusively the work of the
machine, but it may be pushed up by the thumb at any time without interfering with
the addition going on by its respective rack and disc. In the example of the addition
of 375 and 19 the result is shewn in the openings c c 37 91 48 Now, to clear the
machine, if no further amount is to be added to 394, add the small (complemental)
figure in the openings cac' by its respective rack but always in " clearing" commencing
at the night hand, .e the units column, for instance having to clear the machine of
the sum of 394 add the complemental figure 6 by the units rack, this will bring down
the apron and thumb-pin which pin being pushed up, nought (and complemental

page_text: figure) appear in the units opening and 1 having been added to 9 in the next opening,
the apron and thumb-pin of the tens column will be brought down, push up the tens
thumb-pin and nought appears in the tens opening and I is carried to 3 and 4 will
appear in the hundreds opening, now add the 6 by the hundreds rack and the apron
and thumb-pin of the hundreds column will be brought down, finally pushing up the
hundreds thumb-pin will show the openings clear 0, 0 %.
"
<
A special feature of this machine is that it has an apparent carrying" and an
"actual cari ying
The apparent carrying is when at the instant a ten of any dise
has arrived at an opening the plates G G¹ etc. are moved downward automatically
covering said opening and concealing the figures therein by an apron and at the
same time locking the adjoining disc rack The actual carrying is when by the
thumb pin or automatically by the revolution of the disc the plates G G¹ etc. are
moved upward lifting the apron from the opening to shew the figures thereon,
unlocking the adjoining disc rack and by the pawl J now actually adding one to the
adjoining left hand numbering disc. Between the downward and the upward
movement of said plates G G¹ etc. the actual carrying is thus interrupted by a period
of rest which may continue even to the instant before another one on the same disc
1s to be carried This principle of a period of rest or deferied action between an
apparent and the actual carrying is believed to be now in adding machines, and in the
invention and construction of this machine has been especially studied with a view to
avoid the serious obstacle in other machines known and commonly termed as " the
nino holos e for example to add 1 to 99999 to provide and and shew 100,000; in
other machines to produce this result 6 sets of wheels, levers, slides, springs, bearings,
or other items of machinery must be in action at the same instant, thus causing
great friction and a continual loss of power in the motion communicated from right
to left until at the extreme left, the carrying is barely, if over, accomplished,
therefore limiting said machine in its power to that point By the principle of
deferred action or period of rest, it is plainly evident that in this machine no such
friction or any loss of power whatever can occur and an indefinite number of frames
with the discs, etc side by side may be operated from one end to the other without
fear of the "nine holes" or any other obstacle, that is to say, for example the 50th of
50,000th of a row of numbering discs in the frames could be operated in the same
way as the unit or any other column and just as easily, without any possible failure
in carrying, therefore this machine may be said to be unlimited in its power to any
point of numeration possible.
"
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 :-
1 In a numbering device, the combination with a numbering disc and rack for
turning the same, of sliding plates for communicating motion to the neighboring
numbeiing disc for carrying the tens, substantially as described.
2 In an adding device, the combination with a numbering disc and rack for
turning the same of sliding plates operated by the said numbering disc, and a second
numbering disc also operated by the sliding plates for carrying the tens, substantially
as described
3 The side plates F F¹, plate G, apron H, plate G and pawl J, in combination
with the numbering disc B and the operating bar D, substantially as described
4 The side plates F F, numbering disc B, bar D, plates G G₁ constructed to be
moved longitudinally by the disc B and the pawl J in combination with another
frame carrying similar parts, the pawl J engaging with the next adjoining numbering
disc, substantially as described.
5 The sliding bars D notched at min combination with the numbering discs the
plates G G₁, the pivoted locking pawls and pins n' attached to the plates G and
entering a diagonal slot in the said locking pawls, substantially as described
6. In a numbering device the numbering disc B provided with a side pin and
means for revolving the disc in combination with the side plates F F and the

page_text: plates G G¹, the latter provided with a pawl J, said plates G G₁ being formed
respectively with shoulders / h² to receive the impact of the said pin h for recipro-
cating the plates G G₁, substantially as, and for the purposes set forth.
7. The side plate F, provided with a locking pawl k in combination with the
numbering disc, the operating bar D for revolving the same and notched for receiving
the locking pawl, and the united plates G G¹, the plate G being provided with a pin n²,
for operating the pawl k substantially as described.
8 In the numbering machine, the combination with the numbering discs the bars D
for turning the same, the ratchet wheel and ratchet and pawl for locking the discs
from backward movement, the sliding plates G G₁ and the discs B provided with
pins for reciprocating the plates G G¹ of the pawls J and the apron H, substantially
as described.
9 In a numbering machine, the combination with the numbering discs the bars D
for turning the same, the ratchet wheel and ratchet and pawl for locking the discs
from backward movement the sliding plates G G¹ and pins h for reciprocating the
plates G G of the pawls J for communicating motion to the neighboring numbering
discs, and the locking pawls & for locking the bars D, substantially as described.
Dated this 2nd day of March 1889.
A. MELVILLE CLARK.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.