Improvements in Cheque Perforators.
Year: 1890

page_text: Improvements in Cheque Perforators.
A communication from EDWIN OBLO ABBOTT, of Chicago, County of Cook, State of
Illinois, United States of America.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E., 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 :-
This invention relates to improvements in cheque perforators, and consists in the
particular construction and arrangement of the same, as will be hereinafter fully
described.
To enable others skilled in the art to which this invention pertains, to make and
use the same, will proceed to describe these improvements, referring to the accom-
panying drawings, in which
Fig. 1 is a front view of the cheque perforator containing these improvements.
Fig. 2 is a plan view of the cheque perforator with the dial-plate in position.
Fig. 3, Sheet 2, is a plan view of the cheque perforator with the dial-plate
removed.
Fig. 4 is a vertical section of Figure 1, Sheet 1.
Fig. 5, Sheet 3, is an under plan view of the cheque perforator.
Fig. 6 is an enlarged view showing ratchets mounted on shaft to operate the feed
mechanism.
Fig. 7 is an enlarged side elevation view of the ratchet wheels, showing one wheel
broken away, and the other behind it, and showing the teeth of each inclined in the
opposite directions.
Fig. 8 is an enlarged view of the ratchet wheels with one cut away, showing the
irregular plate in position.
Fig. 9 is a vertical sectional view of the removable punches showing connection
with shank and special construction.
Fig. 10 is a view showing the form of the irregular plate.
Fig. 11 is a detailed view of the spring catch showing the lip.
Fig. 12 is a plan view of the block holding the punches showing the shape of the
punch heads.
Fig. 13 is a view of a part of the punch-block showing one hole elongated at the
top and round at the bottom as it would appear had the punch been driven in and
withdrawn.
Fig. 14 is a plan view of one of the holes of the punch-block showing one of the
punches inserted.
Fig. 15 is an enlarged view of one of the punch-pins showing one end flattened to
form the head.
Fig. 16 is a similar view showing the flat side of the head as it is formed.
Fig. 17, Sheet 4, shows the two feed rollers in position with the shaft on which the
lower roller is mounted journaled in a lever and the upper feed roller mounted in a
stationary bracket.
Fig. 18 is a detail view showing the lower feed roller in position with the shaft
broken away said roller bearing against the upper feed roller (which is shown in
section) the tapered journal hole, tapered from each end toward the centre which shows
the upper roller to travel directly on the periphery of the lower.
Fig. 19 is an enlarged sectional view of the upper feed roller shown in Fig. 18
showing the tapered journal hole.
Fig. 20 is a front view of the two feed rollers in position the shaft of the lower
journaled in rigid bearings the upper mounted in a movable bracket.

page_text: Fig. 21 is a partial sectional view of Fig. 20 showing the construction of the hinge
of the movable bracket.
Figs. 22 and 23 are modifications of Fig. 9, showing how it may be constructed.
Fig. 24 is a detail view of the knob and crank-handle, and its indicating pin.
Fig. 25 is a detailed view showing the feed arm connected to the shaft and its
construction.
Fig. 20 is a broken section of one part of the cylinder holding the punches and
punch shank, with the stop-block mounted thereon, and a partial view of the punch
shank and spring for returning the punch shank to its normal position, a part of said
punch shank being dotted behind the stop-block.
Fig. 27 is a section view of one corner of the base showing the insulating cushion
or foot inserted.
Fig. 28 is a plan sectional view taken on lines 28, 28 of Fig. 27, and
Figs. 29 and 30 are views showing the construction of the spring for operating the
pawl in the ratchets of the feed mechanism.
Similar letters refer to similar parts throughout the several views,
These improvements consist essentially
First. In making the top feed roll movable, and the special arrangement and con-
struction of the same.
Second. In the improved shape of the heads of the punches.
Third. In the provision of projections or stops on the upper surface of the punch
cylinder, as shown clearly in Figs. 4 and 26, for the purpose of preventing the
punches from being pushed downward when the cylinder is not in the proper position
for the indication pin to enter the hole in the dial plate.
Fourth. In the improved manner of clamping the feed arm to the shaft.
Fifth. To the perforated holes in the dial plate.
Sixth. In the provision of an adjustable guide bracket for gauging and regulating
the distance of inserting the figures in the cheque.
Seventh. In an improved spring and the method of applying the same to the pawl
for operating it in the teeth of the ratchet wheel as shown in Figs. 28 and 29.
Eighth. In the provision of an insulating cushion or foot and the band of metal
or other material for assisting in inserting the same in the hole in the base.
Ninth. In the provision of a tapered hole in the upper feed roll as shown in
Figs. 18 and 19, and in other details of construction, arrangement and operation, all
of which is hereinafter described and will be fully understood from the drawings in
which A is the base or table made of any suitable material preferably of cast-iron.
Upon this base is mounted a shell or casing B containing most of the working
parts of this machine made in any suitable form but preferably of the shape shown
in the drawings. It is removably secured to the base by screws running into the
body of the shell through the base from the bottom or otherwise.
Cis a dial-plate removably attached to the top of the shell and having in its face
figures 1, 2, 3, 4, 5, 6, 7, 8, 9 and 0 and pounds sign and asterisk or any other suitable
signs or figures and having holes c e opposite each figure and sign. 1 preferably
form the inside surface of the dial-plate with a flange to hold it concentric with the
shell so that it will be held firm. Running through the centre of the plate C is a
vertical revolving shaft a journaled in the plate and the base A below. On the top
of this shaft is a crank or lever D to revolve the shaft. This lever having a hollow
knob bin which is screwed a pin d which fits or drops into the holes cc in the dial-
plate or flange ring or band on top of the dial plate.
A hollow post (see Fig. 24) screws into the lever and the knob fits over the
saine. The pin having the collar e passes through the post and screws into the
knob with a spring & interposed between the inner end of the post and the collar so
that the pin will drop or be forced into the holes cc and may be withdrawn by raising
upon the knob in the act of changing the position of the lever.
The shell B has a tone point a groove, in this groove fits a tenoned shaped knee-
block or plunger y, which is held in position in the shell by a screw passing through
the washery as shown in Fig. 1, which allows it to be adjusted up and down and

page_text: allowing it to contact with and between both the dogs K and the punch shank P P.
Across the inside of the shell B near its top runs a horizontal shaft H journaled in
both sides of the shell; on the end of the shaft on the outside of the shell, is a crank
handle I for oscillating the shaft. On the inside rigidly secured to the shaft H is a
dog K, being made in such form that when the shaft is oscillated the dog will press
down on the block or plunger 9 so as to force down the punches under the block in a
straight line and thereby avoid the tearing of the cheque or paper while being
punched or perforated.
The object of using the block is to prevent the punch cylinder from moving while
the perforating is being done, which if it did occur, the cheque or paper being held
firmly between the feed rolls, would cause the perforations to be rough and unseemly.
It has been found from experience that when the dog is operated in contact with the
punch shank without the intervention of the block the effect is to move the punch
cylinder a little this being enough to make the perforations rough and unseemly and
the cheque or paper liable to tear, the are that the dog moves in being sufficient
to cause this trouble, and it has been found that by using the block between the
dog and the punch shank and contacting with both, a direct and positive downward
straight movement of the punch is insured and this difficulty overcome.
The shaft H has on it a spring m secured at one end to the shaft and coiled around
it and the other end resting upon and hooked over a rod n which runs through the
shell near its top. This spring returns the oscillating shaft. II to its normal position
and carries up the dog and allows the block or plunger g to be forced up and out of
the way of the punch head and the projection or stop-block 2 on the top of the
surface of the cylinder E the spring having the further duty of feeding the paper or
cheque. The upward momentum given to the shaft by the spring m and the spring
in the punch is stopped by the dog striking against the underside of the dial-plato
and relieves the strain from the returning pawl of the feed mechanism which would
otherwise occur and thereby enables me to use a weak returning pawl which causes
less friction and Boise and gives better freedom for the parts to work.
In order to prevent the shaft from moving too far in its downward movement
and through the dog and its connections from forcing the punches too far down
against the stripper-plate and thereby injuring the parts I provide on the crank-
handle I a lug or projection o of appropriate length which strikes against a bracket
or projection on the shell which will limit the downward movement of the shaft or
dog. This also prevents the pawl of the feed mechanism from engaging more than
one tooth at a time in the ratchet as presently explained. The crank handle I has a
knob or hand-hold at its outer end the machine being operated by taking hold of
the crank-handle and depressing it.
Below the punch cylinder and stripper-plate is a die-plate L which encircles the
bottom of the shaft a and is firm to revolve with the shaft being held by means of
the collar or plate & which is rigidly secured to the shaft, a screw passing through
the collar into the die-plate.
Through the die-plate are perforations which are duplicated figures and signs as
on the die-plate but in opposition one being from right to left, and the other from
left to right these figures and signs in the die-plate being perforations or otherwise.
Through this die-plate are small holes near the shaft directly under similar holes in
the stripper-plate through which holes in both plates passes a dowel pin s' which is
secured to the bottom face of the lower hub of the punch cylinder.
The stripper plate N is directly over the die-plate with a space between sufficient
to admit the insertion of the cheque or paper to be perforated and to be withdrawn.
This plate encircles the shaft and is firm to revolve with it. It has through it the
same signs and figures as in the die-plate and directly over the same. These holes
act as a guide for the punches to pass up without carrying the paper with it.
The dowel pins before mentioned make both plates revolve with the shaft as is
evident.
E is a double flange wheel or cylinder having bubs FF top and bottom and a
solid body having a groove S in its periphery which forms top and lower flanges t

page_text: and which have holes in them through which pass punch shanks P P in number
corresponding to the signs and figures in the die-plate. The punch-cylinder's main
body and flanges are made preferably in one solid piece because of cheapness and
convenience of construction and durability.
PP are punch rods or shanks which pass through holes in the flanges of the punch
wheel or cylinder corresponding in number with the figures and signs in the die-
plate. The top of the rods in their normal position extend sufficiently above the
flanges to be in proximity to the knee block g operated by the dog K so as to be readily
pressed down when the shaft is oscillated.
It is preferable in most cases to make the punch shanks in the manner shown in
Fig. 9 of the drawing which is as follows:- -In the punch head is drilled a hole
and countersunk both sides, in this is inserted a shouldered punch shank P and
the same rivetted, and to this punch head is secured the punch blocks by means of
screws as shown in Fig. 9. It may be made as shown in Figs. 22-23, being
modifications.
Between the flanges of the punch and surrounding each rod or punch shank is a
spiral spring a which rests against the top surface of the lower flange. The spring
at its top bears against a small washer a² which is preferably loose on the rod slightly
below the under surface of the top flange and held down by a pin a passing through
the punch shank extending out a short distance beyond the periphery of the washer.
The object of this spring is to draw the punches out of the paper and the punches
and punch shank to their normal position when the pressure is released.
Ris what is called a punch-block or disc made preferably of brass or any suitable
material in which are holes corresponding with the figures or signs below through
which are inserted the punches aa" which perforate the paper. This block R. is
secured to the punch shank by the screws as shown in Fig. 9 so that the punches can
be removed for repairs.
Instead of upsetting the heads of the punches to fit the countersunk holes it is
preferable to flatten the ends as shown in Figs. 15-16, so that they are broader than
the punch in one direction and narrower in another at right angles thereto. By
making the punch holes of this shape and the upper ends of the holes in the block
or plate R to correspond, I am enabled to secure the punches tightly in their place
and prevent them from turning in their sockets, and also obviate the wedge action
of conical heads which tends to warp the block or plate R and throw the punches out
of line.
These punches are headed so that they will not be drawn out of the block in case
the punch should stick in the die-plate or paper below and they are also prevented
from being pushed or forced upward by fitting closely against the punch-head.
a is an arm removably attached to the shaft. H near one end the outer end of the
same being hinged to a connecting rod a which passes downward and is connected
in an irregular shaped plate a journaled upon the feed shaft. T which runs through
and is journaled in the base as shown in Figs. 20-21 the shaft being journaled in a
boxing near one end of the base at one end and at the other being journaled in a
lever X whose purpose will be presently explained.
:
The plate a has attached to one side of it a pawl which engages the ratchet
wheel which is on the feed shaft T on one side of the plate aº, this pawl is
operated to work in the teeth of the ratchet wheel, by means of a spring con-
structed so as to have one end resting on the pawl and coiled around the
shouldered screw the other end resting against the pin in the plate a, the
spring is kept in place by being inserted in a slot (3 in the pawl all of which is
shown in Figs. 29-30 of the drawings. On the other side of plate is another
ratchet wheel 3 also on the shaft both of said ratchet wheels being rigidly but
removably attached to said shaft, the plate a being held in position laterally by the
ratchet wheels.
The ratchet wheels 2 and 3 have their teeth inclined in opposite directions one
from the other as shown in Figs. 7, 8 and 10 of the drawings the opposite inclination
of the teeth being for the purpose of holding the feed-roll fixed by means of the spring

page_text: catches 6º and while the paper or cheque is being perforated. 11 were not for
this arrangement the friction of the pawf upon the ratchet wheels would cause
the feed-roll to move while the punch was in the paper thereby making the perfora-
tions rough. The object of wheel is to hold the feed-roll from going too far when
the feeding is being done and is accomplished by means of the spring-catch 6 dropping
into the teeth the projection 6º on plate a having passed upward so as to admit this
thus making the spaces between the figures or signs uniform and equal.
is a post or projection from the base on one side of the shaft to which is
removably secured a small (preferably spring) pawl which engages the ratchet
wheel to prevent the feed wheel from being moved backward when the pawl is
going downward to engage another tooth. On the opposite side of the shaft is another
post or projection on which is removably secured a pawl preferably of spring
steel whose end engages the other ratchet wheel. This pawl is formed or provided
with a lip which is engaged by a projection on the plate aº. The object of this
pawl is to prevent the feed-wheel from being moved too far when the feeding is
lone. The object of the lip or projection on said pawl is, that when it is engaged
by the projection on the plate a in its downward or backward movement, to
disengage the end of said pawl from the ratchet tooth in wheel 63 and to hold the
pawl out of contact with said tooth of said wheel 3 until the pawl & has engaged a
Tooth in the ratchet wheel and in the upward or forward movement of the arm a
has revolved the ratchet-wheel 63 and the feed-roll far enough for the point of the
tooth in said wheel 3 to have passed under the end of pawl 67. The projection 6º on
plate a is so formed as to allow the point of pawl & to drop into the next tooth thas
securely locking the feed wheel in one direction and the pawl is so arranged as to
have dropped into a tooth in wheel thus securely locking the feed wheel in the
other direction, the objects of this construction and arrangement being to hold the
paper firmly and immovable while the perforating or punching is being done and
also to prevent over-spacing should the operator allow the operating crank-handle to
go upwardly too rapidly or if it should slip from his hand and fly upward. This will
prevent irregular spacing. If it were not for this and irregular spacing occurred there
would be a possibility of inserting another figure or character between the ones
already punched out making it easy to raise a cheque from the amount already
originally punched in it, which is entirely overcome by the arrangement of the pawls
and parts above described.
Near the front end of the feed shaft. T on the inside of the base and projecting
through the base and slightly above its upper surface is removably secured a feed
roller V which revolves with the shaft which feeds the paper or cheque to be punched
or perforated. Removably secured to the outside of the shell by means of a bracket e
(see Figs. 20-21) or otherwise is a pressure roll W directly over the feed roll V
journaled on a pin or rod in the bracket so that when the feed-roll V revolves this
will revolve also. This holds the feed paper down on the feed roll and makes the
feeding uniform and in a straight line.
The bracket is provided with a projection against which is screwed a hub c
of the thumb levere the other end of which is formed to receive a journal for the
upper feed-roll Wa spring e coiled around the hubs c and cone end fastened to
the bracket and the other end bearing on the lever ³ to press the roller W down on
the feedsroll V to feed the paper.
The object of this construction is to perunit the raising of the roller W by pressing
on the thumb lever to insert the paper or cheque. The same result can be obtained
by moving the lower roll from the upper roil W in the manner as shown in
Figs. 5, 17, 18.
By practical experience it has been found that it is preferable to perforate cheques
in the right hand end and to do this the means just described and shown in Figs. 20, 21,
have been provided.
X is a lever hinged at one end a short distance from the feed-shaft and at right
angles to it, the feed shaft being journaled therein, the other end projecting through
an aperture in the base and it is provided with a thumb piece or a flat surface to to

page_text: C
easily push it down upon. To this lever is connected a spring c² preferably underneath
the lever. One end of the spring rests in the aperture for the purpose of pressing
the feed roll V continuously against the pressure-roll W for the purpose of feeding the
paper and keeping it in a position for perforating. In order to insert or withdraw
the cheque or paper 1 simply press down on the thumb piece of the lever X which
will lower the roll V and permit the cheque or paper to be inserted or withdrawn as
tho case may require.
It will be noticed that the front portion of the shell at the lower edge is slightly
above the base leaving an opening or slit to permit the paper or cheque to he
inserted between the stripper and the die-plates for perforating.
On both sides of the shell and on a line with the end of the figure or sign to be
operated in perforating and at right angles with the feed shaft T are placed two
fingers or plates of any design or material for the purpose of designating the line
upon which the figures or signs are to be perforated.
On the rod is a spring securely fastened to it at one end and coiled thereon,
the other end of the spring resting in or against the screw in the block to raise the
block g to its normal position when the pressure is released. The tension of the spring
is regulated by means of the rod n which has one end screw-threaded and the other a
slotted head for turning and set screw to hold it in position when the proper
adjustment is obtained.
On the top surface of the punch cylinder E near its periphery are lugs or projec-
tions placed alternately with the punches in number corresponding with the number
of the punches. The upper surfaces of the lugs k³ project a little above the top of the
punch shanks P. The object of the e lugs being to prevent the knee block I from
being pressed down on the punch shank P except when the punches are in a
position to perforate the paper and the indicating pin d is in the proper hole in the
lial-plate.
In Fig. 25 of the drawing is shown the manner of fastening the feed arm a to the
shaft H which is done in the following manner :-One side of the hub of the arm a
is formed with bifurcations through which passes a screw for the purpose of
clamping it to the shaft as will be readily seen from the drawing. This construction
facilitates the adjustment in the assembling of the machine allowing the slipping of
the feed arm on the shaft until properly adjusted and finally fastened in proper
position by set screw.
H³ is a guide bracket or plate which rests on the top of the base and is secured to
it by a thumb screw passing through a slot k in the flat portion of the plate, which
rest and slide on the base one end of the bracket being formed with an arch to
stiffen it and allow the cheque or paper to rest against, all of which will be clearly
seen from Figs. 2, 3, of the drawings.
It is found from experience that when the letters, figures or signs are stamped in
the dial-plato the stamp carries down the metal with it, thus making the walls of the
stamped figure very irregular and not well defined, so that when they were filled the
letter would be very indistinct unless the plate was faced off considerably after
the filling was done. To obviate this a series of holes is drilled forming the letters,
figures or signs, which makes them very distinct after being filled and polished. I
therefore consider the perforated holes much neater and easier obtained and a great
benefit. I have shown these perforated holes in Fig. 2 of the drawings.
2.G
In Fig. 19 of the drawings the feed roller W is shown with its journal pin with
a hardened short steel bearing placed on the pin to receive the wear if deemed
necessary. This construction is for the purpose of relieving the ends of the roll from
bearing on the journal pin so that it may be free to rock with respect to its axis to
adjust itself to any irregularities in the paper or with the lower feed roll or shaft, also
that its periphery may at all times press evenly on the periphery of the lower feed roll
thus at all times feeding the cheque or paper in a straight line at right angles with the
axis of the lower feed roll.
I may
in place of the construction just described, substitute for the journal-pina
pin having its ends smaller than its main body and accomplish the same result. In

page_text: Fig. 18 of the drawings I have shown a different construction from that just described
and shown in Fig. 19 which consists in dispensing with the hardened steel bearing
the journal being formed to suit the withdrawal of said bearing.
It has been found by experience that the cushions or insulators of rubber for rests
or feet of the base of machines as heretofore used and their manner of insertion are
objectionable. In one case the cushion or insulator consists of a
piece of semi-
vulcanised rubber, cast around the head of a wire nail which is driven into a hole of
sufficient size drilled or bored in the base to permit the nail to be driven in and the
rubber to rest against the bottom of the base, in this construction the rubber being
hard it does not form a good cushion for insulating or preventing the sound of
vibration of the machine passing into the table on which it rests. Another case the
cushion insulator or foot consists of a piece of rubber having a shank with a head at
one end; this is forced by the fingers into a hole prepared in the base for it. With
this construction it is found that often it is not possible to force the shank sufficiently
far in to bring the head snug and flush against the base so that in order to have the
machine set evenly on the table one or more of the cushions have to be pared off and
often when the machine is rubbed upon the table one or more of the cushions will be
rubbed out of this hole. Sometimes a little oil is used to insert this last mentioned
rubber cushion easily but this is very objectionable because the oil soon hardens the
rubber and destroys its elasticity. I overcome these objections and others by providing
a simple, effective and practical cushion or foot by placing a band of thin metal or
other suitable material around a piece of rubber or other suitable material then
compressing the combined two by pliers or otherwise and forcing the same into a
suitable hole in the base for the same. To use the cushion I drill or form holes/"/
in the bottom of the base A for the reception and retention of the cushion or feet in
number as many as may be desired. is the cushion or foot of any suitable size,
shape or material but preferably of a round piece of rubber of the desired length.
3 is a band or open ring of any suitable material preferably of thin metal of size
corresponding with the diameter of the foot so as to surround the same and yet
leave a portion of the foot 7 projecting at one end. The said band or ring may be
continuous but it is preferably formed or provided with the slit as shown. It is
preferable to make the piece of a soft rubber rod as it will ensure better insulation
but I do not desire to be confined to said material. The foot and band are
together placed between the jaws of suitable pliers or otherwise and both compressed
to a size a little smaller than the holes in the base and inserted and drivea in
said holes. The expansion of said cushion will expand band ƒ³ forcing it against
the wall of the hole thereby holding it firmly so it cannot be easily displaced and all
the feet will protrude uniformly. In case it is desired to remove the foot for the
insertion of a new one or otherwise the same can readily be done by means of a
common wood screw.
The operation is as follows:-The feed rolls are separated by pressing upon the
thumb lever and the cheque or paper is then inserted between the rolls V and W
into the slit d' so as to bring the line on which the figures or signs are to be perforated
directly in a line with the front edge of the indicating brackets d then the pressure
is released from the thumb lever and the cheque or paper will then he held firm
between the rolls. I then take hold of the knob & lifting it up and turn the handle D
to that figure or sign I wish to perforate allowing the pin d to drop into the hole
opposite said figure or sign then by pressing down on the crank handle I until the
lug o has struck the bracket p the shaft H will be oscillated and through the dog K
and intermediate block y press down the punches and perforate the cheque or paper;
then by allowing the handle to rise which is done by spring m the parts will return
to their normal position. While they are being returned and after the punch has
been withdrawn from the cheque or paper the cheque or paper is fed by the feed
mechanism as described ready for another perforation. The same operation is
repeated as before and so on until all the desired perforations are made. The cheque
or paper is then released by pressing upon the thumb lever ef and withdrawn.

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, as communicated to ine
by my foreign correspondent, I declare that what 1 claim is :-
1. In a check perforator the feed-roll W having the ends of its journal hole enlarged
substantially as shown and described and for the purpose set forth.
2. In a cheque perforator the combination of the roll V journaled, in the base A
the shell brackets chub c thumb lever and movable roll W substantially as
described.
3. In a cheque perforator the combination of the movable feed-roll W the bracket c³
secured to the shell B the feed-roll V journaled in the base A below the roll W
thumb lever and spring c subst intially as shown and described and for the purpose
set forth.
4. In a cheque perforator the roller Whaving the enlarged journal hole in
combination with the bearing journal-pin 2 base A and shell B substantially as
shown and described.
5. In a paper feeding mechanism the combination of a roller mounted in fixed
bearings and devices for operating the same with a spring pressed roller which is
mounted to rock transversely upon the journal-pin substantially as described.
6. In a paper feeding mechanism the combination of a roller mounted in fixed
bearings with a spring pressed roller having a loosely fitting central bearing upon its
journal-pin substantially as described.
7. In a perforating stamp the punch having a flattened head substantially as
described and for the purpose set forth.
8. In a perforating stamp the punches a having flattened heads in combination
with the plate R having perforations to receive said punches substantially as
described.
9. In a perforating stamp a punch-wheel having a series of punches mounted
therein and a series of projections 3 intermediate the punches substantially as and
for the purpose described.
10. In a perforating stamp the combination with a punch-wheel having a series of
punches mounted therein and a series of projections intermediate the punches of a
plunger for depressing the punches and projections being adapted to lock said plunger
against depression except when a punch is in correct operative position substantially
as described.
11. In a perforating stamp a punch-wheel having a series of punches mounted
therein and a series of projections arranged intermediate the punches said punches
projecting above the upper flange of the wheel and said projections extending upward
slightly more than the punches substantially as described.
12. In a cheque perforator the movable guide H³ having the rest on the base
and means for securing it to the cheque perforator substantially as described.
13. In a cheque perforator the punch cylinder E provided with lugs or projec-
tions in combination with punch-shank P and shaft a whereby the punches
cannot be operated while the indicating pin is not in one of the holes of the die-plate
substantially as shown and described.
14. In a cheque perforator a spring for operating a pawl having ono end resting
against the pawl and the other against a pin in a plate or body whereby the pawl
is made to operate in the teeth of a ratchet wheel substantially as shown and
described.
15. In a cheque perforator the spring in combination with the pawl having
screw or fulcrum t and slots t³ the plate a having pin or rest t² substantially as shown
and described and for the purpose as set forth.
16. In a protection, cushion or foot for cheque perforators and other devices a band
or ring provided with a separable internal cushion whereby both are compressed and
inserted in a hole forming a rest or cushion for insulation or friction substantially as
shown and described.

page_text: 17. In a protection, cushion or foot for cheque perforators the band having the
slit fin combination with the piece f* substantially as shown and described and for
the purpose set forth.
18. In a protection, cushion or foot for cheque perforators the combination of the
band having the slit the piece 2 and the hole f in base A all constructed
arranged and operating substantially as shown and for the purpose set forth.
Dated this 11th day of October 1890.
W. P. THOMPSON & BOULT,
Agents for the Applicant.