Improvements in Means or Apparatus Adapted for Cutting Indexes or Round Corners or the like to Books, Cards, and other Sheets.
Year: 1894

page_text: Date of Application, 20th Oct., 1894
Complete Specification Left, 20th Aug., 1895-Accepted, 12th Oct., 1895
PROVISIONAL SPECIFICATION.
Improvements in Means or Apparatus Adapted for Cutting Indexes
or Round Corners or the like to Books, Cards, and other
Sheets.
I, EDGAR ALFRED GODDIN of 138 Brooke Road, Stoke Newington in the
County of Middlesex, Engineer do hereby declare the nature of this invention to
be as follows:-
This invention relates to improvements in means or apparatus adapted for
cutting indexes or round corners or the like to books, cards and other sheets. The
machine is provided with suitable framing and a horizontal guide-way extending
across its front face to receive two slides which in their normal condition can be
moved in only one direction.
Each of these slides is provided with a recess, the bottom of which is inclined so
as to co-operate with a wedge whose thin end points in the direction in which the
slides may be moved freely and is urged in that direction by a suitable spring, the
said wedges having roller bearings between them and their respective slides so as
to assist them in performing their functions, if, however the slide be urged in the
opposite direction no movement will result as it will only cause its wedge to exert
more force, but should pressure be applied to the slide in the reverse direction,
viz. that in which the spring tends to apply the wedge, the said wedge will yield
sufficiently to admit of movement in that direction.
The left hand slide is provided with a pin projecting from its front face near its
right hand end upon which is journalled a rocking arin whose free end is set back
so as to lay within the slide guide way, where it has pivotally connected to it two
links whose opposite ends are similarly attached to the back and front respectively
of the right hand slide; these slides are also connected to each other by means of
a tension spring which tends to keep them together.
If pressure be applied to the said rocking arm so as to move it about its journal
in the direction of the right hand slide, that slide will be moved forward so long as
pressure is applied and to an extent proportionate to the movement of the said
rocking arm, but when the pressure is released the spring will draw the left hand
slide towards the right hand one which is unable to slide back.
Upon the front of the left hand slide is a second pin situated nearer to its left
hand end, upon which is journalled a hub or boss having three radiating members,
hereinafter referred to as an arm, heel and toe respectively, and it is at the end of
the arm that the tool-bar guide is situated.
The tool-bar guide on this arm consists of a boss or hub bored in a direction that
is vertical when the arm is horizontal.
The tool-bar may be of cylindrical form and contains within it a spring which
takes its backing upon a pin, carried by the guide and introduced through a slot
near the bottom of said tool bar which is thereby normally kept in its uppermost
position; the tool is held in a collar attached to the lower end of said tool-bar and
a friction roll is provided at its top where the pressure is applied to first move the
right hand slide forward the desired distance and thereafter to cause the tool to
descend to make its cut.
:
In working, pressure is applied to the tool-bar, through the friction roll, above
referred to, by a pressure bar which extends across that part of the machine
traversed by the slides.
:

page_text: This pressure bar lying in aghorizontal direction, is caused to rise and fall once
for each cut and the movement of the slide, and the distance between each step of
the index is regulated by the amount of such rise and fall.
When pressure is first applied to the tool-bar, the guide, whose arm normally
stands at a small angle with the horizontal, is caused to move about its journal
until the, tool-bar is in; a, vertical position after which the tool-bar itself descends
carrying with it the tool.
This result is obtained by connecting the tool-bar to its guide by means of
suitable links which hinge or fold when relative movement takes place between
them, but so long as they are prevented from folding the two work as one piece.
These links are best situated at the side of the guide furthest from its point of
oscillation, and are provided at their middle joint with a friction -roll, which
impinges against the edge of a guide plate, attached to the left hand slide, having
the form of a circular are struck from the tool-bar guide journal and extending in
the direction taken by the said friction roll until the guide is brought to a standstill
by its heel engaging a stop carried by the same slide, at this point the links are
permitted to binge and the said friction roll now travels,against a second,circular
are described from the point about which the link, that is connected to the
guide, now turns, thus preventing the said tool-bar guide from moving until the
tool-bar again reaches its uppermost position in its guide when it (the guide) is
caused to assume its normal position by virtue of the left-hand slide being moved
forward under the influence of the spring which, connects it to the right hand slide
causing the toe of the tool-bar guide, which co-operates with the free part of the
rocking arm, now held by the links that connect it with the right hand slide, to be
thrown back, it will also be seen that when the tool-bar guide is again moved about
its journal to bring the tool into a vertical position, this toe, which passes through
the same angle as the tool-bar guide will impart movement to the rocking arm and
thence to the right hand slide through the links which connect it to the free end of
the said rocking arm.
The pressure bar is suspended by three cranks from the upper part of-the
machine, one near each end, and the third, by which it is operated, at its. centre,
this one being keyed or otherwise attached to a short driving spindle carried in a
suitable bearing situated in the main casting and communicating with the rear of
the machine where it is provided with another crank to which the treadle rod or
rods are connected.
This "driving" crank, which takes an opposite direction to the others, and is
sufficiently heavy to counterbalance them and the pressure-bar, has a suitable
number of pins.situated at different distances from its fulcrum, which.are.so acted
upon by the treadle through one or more rods as to give more leverage at that part
of its stroke where the most power is required.
The treadle rcd or rods are provided with slots corresponding with the number
.of pins, which are so placed with relation to one another that no slot drives the pin
with which it co-operates until that pin is at the end of its slot, a spring being
provided, that maintains one or other of the said pins in that, condition.
A reciprocating motion is imparted to the pressure bar the extent of which is
varied by a cam which acts as an adjustable stop limiting the upward movement of the
pressure bar so as to regulate the amount of movement communicated to the slides.
The face. of this,cam is graduated and in conjunction with a pointer.constitutes
the means whereby the machine may be readily set to cut an index of the desired
size, and is hereinafter referred to as the length gauge.
In front of this machine brackets are provided which support a.suitable table
upon which the work to be cut is clamped in such a manner as to leave that portion
which is to form the index face downwards upon the cutting bed, this done the last
section is lifted and the first cut made, after which the next section is held clear of
the knife, which now descends to cut the next step of the index and so on until the
work is completed.
This clamp consists of a bar of suitable section hinged to a bolt at one end and

page_text: having an open slot at the other into which a hinged' bolt, provided with a fly-nut,
may be swung, each of the said bolts being adapted at their other ends to slide
in slots at the side of the table so as to adjust their distance from the path of the
tool, where they may be held by suitable nuts.
To return the slides to their starting place the wedges are forced back against
the springs which normally tend to apply them by a wiper, carried by a short
spindle situated in front of the thin end of each of the wedges, said spindles having
lever handles, whereby they may be turned, and a spring governed pin adapted to
drop into a hole on the slide provided for the purpose of retaining said handle in
the desired position; this having been done the slides may be pushed back by hand,
or be made to travel back under the influence of a counter-balance weight
suspended over a pulley, at the left hand end of the casting, by a chain, or
it's equivalent, whose other end is attached to the left hand slide.
To the main casting is adjustably attached a stop, lever or equivalent part
so applied as to act upon the levers of one or both the wiper spindles for the
purpose of automatically throwing out the wedges when the slides reach a given
part of their guide-way.
At each end of the cutting bed and just behind it a width gauge is hinged to the
casting for the purpose of regulating the width to which an index is to be cut.
This gauge is normally held out of the way of the tool by springs, and consists of a
straight edge lying parallel with said cutting bed and capable of adjustment to and
from it, the ends of this straight-edge being carried by slots in its hinges in which
it is adjustable by means of suitable screws.
The tool used may be of usual chisel form having a quasi-L-shaped cutting.edge
or of other suitable form.
The treadle rod or rods are carried in universal or like joints, and a stirrup is
provided to receive the foot of the operator.
When the length gauge is set at zero, i.e. so that the tool only moves-the slide
remaining stationary-the machine may be used, with a suitable tool and corner
gauge, for round cornering.
By a modified arrangement the tool-bar guide may be attached to or formed
solid with the left hand slide constraining the tool to travel in a vertical direction,
motion being imparted to the right hand slide, at the beginning of the tool's descent,
either through a bell crank lever acting upon a rocking arm, as in the arrangement
described, the intermittent movement of said bell crank lever being effected by
means of folding links co-operating with a suitable guide plate similar in principle
to that previously described, or by intermittently operating a short rack by similar
means which drives a pinion or sector carried by a spindle situated transversely in
the left hand slide and carrying two similar pinions or sectors, one on each side of
said slide, which operate short racks attached to the back and front respectively of
the right hand slide.
In place of the foregoing short rack and pinion to attain the motion referred to,
this transmission of motion may be effected by equivalent straps or like connection.
Or the main framing may have two slide guide-ways each provided with a long
slide, the lower one carrying a tool-bar guide of similar construction to the one first
described, but having, instead of a toe, a slotted arm sufficiently long to engage a pin.
on the upper slide, thereby doing away with the rocking arm, this stotted arm is
urged backwards, about its journal, while the pressure-bar rises, by a strong spring
which causes it to react upon the pin of the upper slide and drive the lower one
forward.
In this form of construction the slides are prevented from moving backward by
volute, spiral, or eccentric cams, carried in the main casting, which, by their
frictional contact with the slides, are pushed "off" when the said slides are moved
forward, and "on" when they tend to move backward, in this direction their action.
is assisted by springs.
Instead of using a tension spring between the slides for the purpose of urging
them towards each other, I may attach a weight carried by a chain or its equivalent

page_text: to the front end of the left-hand slide which is then carried round a pulley situated
upon the right-hand slide after which it is led back through a hole for that purpose
in the other slide and thereafter over a pulley at the left-hand end of the slide
guide-way; this weight will be lifted, at each stroke through a distance equal to
double the movement of the slides, while the right-hand one is moving forward, but
will only descend a distance equal to their movement when it acts upon the left-
hand slide to draw it towards the right-hand one, thus half of the energy expended
in lifting it will be stored for the purpose of bringing the slides back to their
starting place when the wedges have been thrown off or in equivalent inanner.
A similar result may be obtained by using two weights suitably connected to the
right and left-hand slides respectively, the one attached to the right hand one being
suspended over a pulley at the left hand end of its guide way and being heavy
enough to counterbalance both slides, the other one being carried over a similar
pulley at the opposite end of said guide way only heavy enough to counterbalance
the left-hand slide.
Instead of operating the pressure bar in the way described, a two armed or double
crank may be used instead of the "driving" crank. To one of its arms is attached
a short link whose other end is connected to a long arm pivotted to a pin situated
on the opposite side of the driving spindle thus forming a toggle giving extra power
until the two are in line when a projection upon the treadle rod, which is connected
to the end of the said long arin, engages a roll carried by the second arm of this
double crank imparting to it a quicker movement with less power at the point where
less energy is required, in order to allow this, the long arm has a slot in which the
pin, that connects it with the intermediate link, may slide when the second crank
arın is doing the work.
Instead of positively connecting the centre crank to the pressure bar it may be
used as a "driver" only, acting upon a pin situated upon said pressure bar to carry
it to its lowest point, where the supporting-cranks are on their dead centres, the
pressure bar remaining in that position until the "driver"acting under the influence
of the treadle has returned to its starting point when a "kicker carried by the
same spindle kicks the cranks off their dead centres enabling the pressure bar to be
raised to its uppermost position by the other parts of the machine.
•
The object of this arrangement is to keep the machine in an inoperative condition
until the driver has risen to its full extent, thus insuring against a short stroke,
A modified form of pressure bar, consists of a straight bar supported at its outer
ends by rods working in vertical guides and acted upon, under the table by direct
connection with the treadle.
ני
DOLL 1
1004
EDGAR A. GODDIN.
Wm. Brookes & Son,
55 & 56 Chancery Lane, London, Agents for the Applicant.
.. COMPLETE SPECIFICATION.
Improvements in Means or Apparatus Adapted for Cutting Indexes
: or Round Corners or the like to Books, Cards, and other
Sheets.
1, EDGAR ALFRED GODDIN, of 138, Brooke Road, Stoke Newington in the
County of Middlesex, 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 :-
This invention relates to improvements in means or apparatus adapted for cutting
indexes, or round corners or the like to books, cards or other sheets.

page_text: In the accompanying drawings, in which like parts are similarly lettered-
Fig. 1. is a front elevation of my improved machine.
Fig. 2. is a plan of the same, in which the slides are not shown.
Fig. 3. is a side elevation.
Fig. 4. is a sectional plan, taken on the line - (in Fig. 1.) showing those
parts omitted from Fig. 2.
Fig. 5. is an enlarged detail of the width gauge, in plan.
Figs. 6. & 7. are front elevations of the right and left-hand ends of the width
gauge respectively.
Fig. 8. is a rear side elevation of the two slides.
Fig. 9. is a front elevation of a machine showing a modified construction.
Fig. 10. is a detail showing an end elevation of the gripping apparatus,
Fig. 11. is a plan of the gripper rod.
Fig. 12. is a side elevation of the rocking arm.
Fig. 13. is a detail of the tool holder and its guide in section.
Fig. 14. shows a plan, elevation and underside view of a tool.
Fig. 15. is a section on the line y-y, (in Fig. 5) showing the width gauge and
trigger, and
Fig. 16. is a modified form of slide.
This improved machine for cutting indexes, or round corners, or the like to
books, cards, and other sheets is mounted on suitable stands A. A. and has a
guideway B. preferably horizontal, extending across its front to receive one or
more slides C. C+ (preferably two as in Figs. 1 & 4). These slides whether one
or two be used, move only in one direction when the machine is arranged for
cutting indexes.
When the two slides C. C+ are used each of them has a pocket or recess c¹ in
its top surface, the bottom of which recess is at an angle with the top surface of
the slide. The shallower end of the recess c' is at that end of the slides C. C+
which is nearest that end of guideway B. toward which the slides travel in cutting
an index. In the machine shown in the drawing the slides C. C+ travel in the
direction of the arrow c, when cutting indexes. In each pocket or recess c¹ is a
wedge resting upon a rolling bed which lies between the under surface of the
wedge and the inclined bottom of the recess. A spring c acts upon the thick end
of the wedge and forces it upwards against the under surface of top part of guide-
way B. so that the slides become wedged in the guideway B. and are wedged more
tightly by any force tending to thrust them in the direction contrary to that of
arrow c. If however a force is applied tending to move a slide C. in the direction
of arrow c² such force causes a tendency for the slide acted upon to become free
from the wedge action, so that such slide will be moved by such force in the
direction of the arrow c. To return the slides to their starting point the wedges c
are acted upon by the levers c fixed upon shafts e' which have on the front of the
slides hand levers c which carry pins connected to the levers by springs c¹ and
arranged to fit into a hole in the front of each slide to retain the hand levers c8 in
the position for keeping the wedges c forced backwards against springs e clear of
frictional contact with the under surface of the top part of the guideway B. this
permits the movement of the slides in a direction contrary to that shown by
arrow c. The slides may be pushed backwards by hand, or be drawn back by a
weight spring, or in any convenient manner.
If only the one slide C. is used as shown in Fig. 9. the cam c acts the part
of the wedge in the front slide of a two slide machine as will be hereinafter
.described.
The slide C. which is the rear slide in respect to the direction of movement of
the slides when the machine is in operation, is provided with a pin c projecting
from its front face. Upon the pin c is fitted a rocking arm D. bent so that its
free end swings within the slide guideway B, and in a slot or hole formed through
the slide C. The free end of D. is coupled by a link or links d¹ to the slide C+.
In the ove slide machine the free end of rocking arm D is connected to a gripper

page_text: rod D+ (Figs. 10 & 11) hereinafter referred· to. Slide C. also connected to
slide C+ or to gripper rod D+, by the tension spring d which tends to draw them
closer together.
If the rocking arm D is swung upon pin towards slide C+, that slide (or in a
single slide machine the gripper rod D+) is moved in the direction of arrow in
the guideway B. so long as power is applied to the rocking. arm D. to cause it to
swing in that direction.
Slide C: would follow slide C* or gripper rod D+ being coupled thereto by the
spring, but is prevented by means hereinafter described from so following until
required to do so. The movement of the slides in' the direction of the arrow ' is
proportional to the length of the arc through which the rocking arm D. is caused
to travel.
Slide C. is also provided with a pin c" which has swung upon it a moving
part E. shown in detail to a larger scale in Fig. 13. It consists of a boss e. a
radial arm el a projection e, and a short armes, hereinafter respectively called
arm e, heel e, toe e³. At the end of arm e¹ the tool bar guide et is formed. The
centre line of the tool bar guide will be perpendicular to the plane containing
the centre line of the pin c¹ and the centre line of the arm e'.
The tool bar F. is preferably made a cylinder' containing a spring f. supported
by a short plug or piston which is retained inside the cylinder by means of the
pin e screwed into the tool bar guide e and having its plain end projecting through
a slot in the cylindrical tool bar F. By means of spring f. piston fland
screw the tool bar F. is kept normally in that position in its guide which is
delineated in Fig. 13. The tool bar F. is prevented from being forced by spring.
out of its guide e by means of the collar f³ secured to the lower end of F. This
vollar serves also to hold the cutting tool not shown in Fig. 13 which tool is secured
in its place by means of set screwAt the opposite or upper end of the tool
bar F. a friction roller is provided through which pressure is applied to cause
the tool to cut indexes or rounded corners as may be required. The power which
causes the slides C. C+ to move in the direction of the arrow c is also applied
through this friction roller as will be hereinafter described.
A pressure bar G. of sufficient length to act upon the friction roller f* through-
out its work of cutting the longest index for which the machine is required is
placed parallel with the guide wny B. and is caused to rise and fall once for every
cut and when cutting indexes the length of travel of the slide or slides is
determined by the distance through which the pressure bar G. rises and falls.
When the machine is at rest the arm e, is slightly above its horizontal position
as shown in Figs. 1 and 9. A link or links f is connected to the upper end of the
tool bar F, preferably to the pin f, on which the friction roller f revolves.
Another link e is connected by a pin e', to the tool bar guide e. These two
links,,, are connected to one another by a pin e passing through their other
ends. This pine carries a friction roller for a purpose hereinafter explained.
A guide c, c is formed or fixed upon the slide C. as shown in Figs. 1; 9 & 16.
The part is an arc of a circle struck from the centre of pin c. The part c¹s
is struck from a point at which the centre of pin e' is, when the arm e' reaches a
certain point in the arc it describes about the centre of pin c, the said point being
determined by the heel engaging a stop c" fixed on slide C. The toe e³ impinges
upon a rounded projection d. upon the rocking arm D. Their action will be
hereinafter described.
The pressure bar G. may be kept parallel to the guide way either by suspending
it by radial arms g. from projections b. on the upper part of the guide-way B.
as shown in Fig. 1. or by securing it to guideway rods working in bosses
formed upon the ends of the guideway B. as shown in Fig. 9. The force for
actuating the cutting tool may be imparted through the pressure bar in any suitable
manner. I have found the best and most suitable method to be as follows. H. is n
short fulcrum spindle working in the boss & formed upon the upper part of the guide-
way B. Upon spindle H. is fixed an arın which engages with a pin g projecting

page_text: from the rear side of the pressure bar G. A lever h hereinafter referred to, with
the treadle rod K. are sufficiently heavy to more than counterbalance the other
levers and the bar G. Upon the same spindle H is also fixed the said slotted arm
or lever Across the slotway of lever h, two pins, 2. h³, respectively pass. The
lever is connected to the treadle lever I by means of the treadle rod K. This
rod K. has at its upper end a plate & passing through the slotway of lever h', and
itself having curved slots 2, through which the pins h2, h3, respectively pass, the
object being to partially compensate for the loss by angular movement of the radial
arms "g," and utilize as much extra power as can be derived from such loss of
movement when actually cutting. The treadle rod K. moves upwards when
pressure is applied upon the treadle stirrup i, it first acts upon più, and then
upon pin . The slotways being so arranged that only one of the pins is
acted upon at the same time. The treadle lever I is supported upon the rod i.
which ties the stands A. The lower end of treadle rod K. is connected to the treadle
lever by neaus of a universal joint, and there is sufficient play for the plate ¹, in
the slotted lever, for the rod K. to vibrate under the action of the treadle lever.
The extent to which the pressure bar G. can rise under the counterbalancing
action of lever ', is controlled by a cam plate M fixed upon a lug b³× on one of
the projections b on the upper part of the guideway B. This cam plate M. acts as
an adjustable stop which limits the upward movement of the pressure bar G. and
this in turn controls the extent of the forward movement of the slides C, C+, and
of the gripper rod D+ (Fig. 9.) which takes the place of the slide C+ in a machine
having but one slide C. The cam plate M. is graduated and in conjunction with
the pointer m. constitutes a measure or length gauge, by which the machine may be
set to cut an index of any desired length.
In the single slide machine the gripper rod D+ slides upon the support d¹º,
Figs. 9 & 10, between that support and the camleverd which is acted upon by
the spring d. When the rod D+ is forced by the rocking arm D in the direction
of the arrow the friction of it on the cam-shaped boss of lever increases the
tension upon spring d³ and permits the passage of the rod. When, however the
rod D+ has a force put upon it.in the contrary direction to that of the arrow, its
friction upon d' assists the spring d and causes the cam-shaped boss of d to grip
the rod against the support . A catch d' is arranged to hold the end of cam-
lever d' when it is desired to return the rod D+ to the starting point for cutting, a
fresh index. The rod D+ is connected to the working arm D by means of the
pin d³. It is also connected to slide C. by means of the spring dx which has a
similar function to the spring de of the two slide machine.
Upon brackets a', of the stands A is a table a' upon which the work to be cut is
clamped by the hinged bar a³, screw a', and out as, in such manner as to leave the
portion of a book which is to form its index pages, face downwards upon the
cutting table a². When thus clamped, the last section of the work is lifted and
the first cut made. Then the last section but one is raised and the two last
sections held clear whilst a second cut is made. Then the last section but two is
lifted and the three last sections are held clear of the knife and a third cut is made,
and so on repeating the lifting and cutting till the whole index is cut. The hinge
of the bar a and the head of the screw a slide on rods or in guideways a, a,
respectively so that the bar a' may be shifted upon the table a² to suit the work to
be cut.
N. is a gauge bar for regulating the width to which the index is to be cut.
Details of it and of the parts by which it is attached to the machine and operated
are shown in Figs. 5, 6 & 7 to larger scale. It is hinged to lower part of the
,guideway B. by arms ', n², pins n³, n', nº, nº. The screw n', in arm n', acting
upon the nut n, which forms the head of pin n³ regulates the position of bar N. in
respect of its being parallel or not to the guideway B. carrying the cutting tool
slide. The springs n', no, keep the bar N in the position shown in Fig. 4 out of
the way of the cutting tool when that tool is descending to make a cut. The
quadrant n, and quadrant screw and nut n", regulate the position of bar N. under

page_text: the controlling action of lever n supported on the pin ", which lever impinges
on the quadrant n", and keeps bar N out from beneath the guide way in certain
positions of the treadle rod K whilst the work is being fixed in place on the cutting
table. When the work is fixed and pressure is put upon the treadle stirrup
treadle rod K. is forced upward in due time, the pin x trips the lever n¹³, and the
gauge bar under the action of springs no, no, at once goes back to the position
shown in Fig. 4.
The cutting tool is shown in Fig. 14, elevation, plan and underside respectively.
It consists of a bent plate of steel o. with chisel edge shaped for the kind of work
to be done and secured by screws o' to a haft o2. This haft fits into the tool-
bolder collar. It has a screw of which impinging against the pin f³ that secures
collar to the toolholder bar F. by unscrewing of the tool and its haft are
together made of the exact length over all for giving the proper cut through the
paper or cards to be worked upon.
The action of the machine in cutting an index is as follows:-The work having
been clamped in position on table a² as described the operator presses with his foot
on stirrup. This forces up the treadle rod K-k trips lever ns and the setting
gauge N goes out of the way of the cutting tool. Meanwhile the bottom of slot **
has been forcing pin h³ of lever upwards. This through spindle H. and lever h.
has acted upon pin 93 of pressure_bar G. forcing it downward. Bar G. acts on
roller and forces the tool bar F. downward and as the roller e³, which is on the
pin coupling links e, f, cannot move out of its circular path about pin c¹ the tool
holder guide e and radial arm e' heel e³, and toe e³, all move partly round the
pin c. This brings guide e into a vertical position. Meanwhile the toe e has
pressed against the rounded projection d. of arm D. which is thus caused to swing"
in the direction of the arrow and force forward the slide C+ or the gripper
rod D+ according as the machine is a two-slide or a one slide machine. The said
slide or rod is then respectively gripped by the wedge c³ or by the gripper das
the case may be and cannot come back. The slide C. which is acted upon by the
spring d is prevented from being drawn by the said spring towards the slide C+
or the gripper rod D+ by the toe e engaging the rocking arm D. which is con-
nected with the said slide C+ through the links d' or the said gripper rod D+, the
said toe in turn being prevented from further forward movement by the heel e
engaging the stop ", and from being thrown back by the friction rolle moving
out of its circular path about the pin 4 so as to engage the cam which opposes
any upward tendency of the tool holder guide et of which the toe e is a part until
the friction roll es has been returned to its circular path about the pin c¹ by tlie
rising of the tool holder in its guide et while the action of its wedge prevents the
said slide C. from being forced backward in forcing C+ or D+ forward. The,
further downward pressure of the foot acting upon now causes the links f, e,
to fold the roller e, now following the path of the arc c, the guide e remains
vertical while the tool bar F. descends and the first cut is made. The operator
now removes his foot from ¹. The lever . is drawn by the weight of the treadle
rod off pin g³ the pressure bar G. being on its dead centre is left for a time resting on f³,
until the treadle has risen to its highest position when the other lever h' strikes the
ping' situated upon the front of the pressure bar G. thereby knocking it off its dead
centre and allowing the tool bar F. to be lifted by the spring f. and so causing the
links f,, to go back to their position, the purpose being to prevent the operator
from making a second cut before the treadle and pressure bar have risen to their
highest positions, and so making a short step in the index. Then spring dª acts
upon C. and draws it in the direction of arrow . The forked end of D+ or the
links d¹ force back the rocking arm D as C goes forward and thus the tool bar
guide e is lifted to the inclined position in which it was when the operator's foot
was placed upon the treadle i'.
If the gauge m. is set to zero the pressure bar G. is prevented from rising
sufficiently for the lever e¹ to rise above the horizonal position. It consequently
remains stationary with heel e' against stop c" and the tool holder simply rises and
.

page_text: falls in its guide e. Hence there is no movement of toe's, or of arm D. so'
that the slide C+ or gripper rod D+ do not move forward, and thus no tension
comes on spring d to cause slide C. to move. Thus the machine can in this case
be used simply as a cutting machine for cutting corners or ornamental work.
In Fig. 16 is illustrated a modified form of slide in which the tool bar guide is a
fixture instead of vibrating about a pin, as in the machine described. When the
tool bar F. is caused to descend, the arm e' is moved downwards through the
links and which are unable to fold while the friction rolle is on the straight
part of the cam plate p, this straight part it leaves at the same time as the heel e
engages the stop e, when the said links are permitted to fold and the roll e,
now engages the circular part of the cam-plate p. the link e thereby retaining
the arm e¹ heel and toe e³ and the rocking arm D. in their respective
positions until the said roll es again engages the straight part of the cam-plate p.
when the slide is permitted to be moved forward under the influence of the
spring and the parts to return to the positions shown in the drawing.
Other equivalent means of controlling the motion of the parts will suggest
themselves to an expert in mechanics.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. An index-cutting machine substantially as described in which the cutting tool
is, by the action of the working power, moved along the work to be cut, in place of
the work being moved along under the cutting tool.
2. In an index-cutting machine, the use of one or more slides adapted to be
moved in a suitable guideway or ways and carrying a tool supported in a sliding
holder substantially as described.
3. In an index-cutting machine an adjustable stop or cam acting upon one or
more slides or upon a slide and a gripper bar substantially as described for limiting
the length of the index steps.
4. In an index-cutting machine the combination of a slide moving in a guide-
way with a second slide moving in a guideway, the first named slide carrying a
member which guides and supports the cutting tool, the two slides having wedge
grips and being connected with each other by a spring and by a rocking arın and
links or by other equivalent means for automatically increasing or decreasing the
distance between the slides substantially as described.
5. In an index cutting machine, a slide having a wedge grip and carrying a
cutting tool holder supported in a suitable guide-way for such tool-holder, in com-
bination with a gripper bar and automatic gripping apparatus, the slide and bar
being connected by a spring and by a rocking arm or by other equivalent means
for increasing and decreasing the distance between them all substantially as
described.
6. In an index cutting machine a tool-holder connected to its guide by links, the
links being for the purpose of preventing the tool-holder from sliding through its
guide at parts of the stroke and the action of the links being controlled by a
stationary cam or guide-plate situated upon the foot of the machine carrying the
tool-holder guide all substantially as described.
7. In an index-cutting machine a pressure bar hung on radial arms or supported
by guide rods in guides for the purpose of conveying pressure from a treadle crank
or lever to a travelling cutting tool substantially as described.
8. In an index-cutting machine, the combination of a work-table with a clamping
bar adjustable on suitable guide rods or in guide ways for fixing the work in
position under a cutting tool substantially as described.
9. In an index-cutting machine an adjustable gauge bar, hinged to the work
table or frame of the machine by a link or radius rod at each end, the said link or
either of them being provided with means of adjusting the said gauge bar for the
purpose of fixing the book or material to be operated upon in position beneath a

page_text: cutting tool which moves step by step over the said work or material all substantially
as described..
10. In an index-cutting machine an adjustable. gauge-bar hinged to the work
table or other part of machine by a suitable link or radius rod at each end, the said
links. having, or co-operating with a suitable slot or slots for the purpose of
adjusting the said gauge bar, in combination with springs, or weights.and cords for
removing the said gauge har from the path of the cutting tool, and with a trigger
operated by the treadle, crank or lever. the said trigger keeping the said gauge
bar in position when setting the work, all substantially as described.
11. An adjustable cutting tool haft for an index-cutting or round cornering
machine, substantially as described.
12. In an index cutting machine the use of a cylindrical toolbar or holder
containing within it a suitable spring substantially as and for the purpose
described.
13. The general arrangement or combination of mechanical parts comprising an
index cutting machine substantially as and for the purposes described.
Dated this 20th day of August 1895.
EDGAR ALFRED GODDIN.