Improved Machine for Outting Indented Edges for the Lettering of the Index Pages of Account, Memorandum, and Letter Copying Books, and for similar purposes.
Year: 1895

page_text: Date of Application, 10th Aug., 1895
Complete Specification Left, 11th May, 1898-Accepted, 25th July, 1896
PROVISIONAL SPECIFICATION.
Improved Machine for Outting Indented Edges for the Lettering of
the Index Pages of Account, Memorandum, and Letter Copying
Books, and for similar purposes.
I ARTHUR HERBERT ALEXANDER of 55 Radnor Street City Road, London,
E.C., Engineer and Machinist, do hereby declare the nature of this invention to
be as follows, that is to say :-
My improved machine for cutting the index pages of books, index sheets or the
like consists of a suitable frame which supports a guide or slide bed in or on which
a slide that carries the cutting tool can travel.
I arrange a plate with its surface in a plane parallel to the centre line of the
said guide or slide bed. The said plate is carried in grooves or guides formed
upon or fixed to the frame-and can be adjusted in such guides or grooves in such
way that any desired part of its surface can be brought nearest to the cutting tool
slide. Instead of a plate 1 sometimes use a cylinder, or part of a cylinder, carried
on a shaft supported by the frame; the axis of the cylinder being arranged parallel
with the said guide or slide hed. Thus by turning the cylinder upon its axis, lines
drawn upon its surface parallel with its axis may as desired be brought nearest to
the cutting tool slide.
On the surface of the plate or cylinder or part of cylinder I form grooves or ribs
which meet at a point on the surface, or which would do so if prolonged in the
converging direction. These ribs or grooves are arranged in one of the following
ways: A centre line is drawn on the surface of the plate at a right angle to the
plane containing the centre line of the guide or slide bed which carries the tool
slide. Or it a cylindrical surface is used a line is drawn upon its surface at or near
the centre of its length, which line is in a plane at a right angle to the axis of the
said cylindrical surface. In either case the point at which the ribs or grooves
meet is in the central line drawn as aforesaid upon the surface of the plate or
cylinder, or in a prolongation of that line. The converging ribs or grooves are
arranged to be at equal or other prearranged series of angles from the said central
line upon which a central groove or ib is formed. Or a groove or rib is formed
on both sides of the said central line and at equal angles therewith, while the other
ribs or grooves are arranged at equal or proportional angles starting from the said
two central grooves.
The tool slide is provided with suitable catches or bolts to engage the said
grooves or ribs. As regards the slide, one of these catches or holts can only move
to and fro to engage the said grooves or ribs. Another catch or bolt not only has
a motion to and fro to engage the said grooves or ribs, but is carried in an inner
slide block which works in a guide way in the tool slide so that the distance
between the two catches or bolts is adjustable. These catches or bolts are acted
upon so as to engage with the said grooves or ribs and to disengage therefrom
alternately so that the tool slide may move in the required direction step by step
under the influence of a weight, spring, or other suitable means.
The engagement and disengagement of the said catches or bolts with and from
the said grooves or ribs is controlled by pins, projections, cam surfaces or the like
carried upon or actuated by the tool holder, tool slide, or other convenient moving
part of the machine, operating either directly or through levers or other suitable
mechanism

page_text: In one end of the guide way formed in the tool slide I place an adjustable stop
which straddles the bolt or catch herein before first named. This stop is adjustable
by a suitable screw and controls the distance to which the other catch or bolt can
approach the one it straddles. It does this because the end of the inner slide block
which carries the herein before second named bolt or catch comes in contact with
the adjustable stop. At the other end of the guide way formed in the tool slide
I place another adjustment screw which acts as a stop to prevent the tool slide
being drawn too far under the aforesaid influence of the weight spring or other
suitable means.
This is effected by the end of the said adjustment screw coming
in contact with the inner slide block that carries the second named bolt or catch;
at a time when the said bolt or catch is engaged with one of the grooves or ribs
of the plate or cylindrical surface.
Around this last named adjustment screw and between it and the end of the
sliding block which carries the second named bolt or catch I place a spring which
is compressed when the tool slide is drawn forward under the action of the before
mentioned weight, spring or other suitable means.
When the tool slide has been drawn forward to the extent to which the adjusting
screw permits, the first named bolt or catch can be caused to engage with a rib or
groove of the plate or cylinder. Then, when the second named catch or bolt is
disengaged from the 1b or groove it has been engaged with, the sliding block
which carries it is forced by the spring around the adjustment screw up against
the stop which straddles the first named bolt; and then the second named bolt is
free to engage with a groove or rib one step nearer the first named bolt than the
groove or rib from which the second named bolt was last disengaged.
To facilitate the adjustment. of the machine by means of the aforesaid screws
carried by the tool slide I prefer to mark the plate or cylindrical surface at some
part parallel with the aforesaid central line, and to mark the guide or slide bed
which carries the tool slide-so that by means of suitable pointers the adjustment
screws in the tool slide can more quickly be set to determine any required length
of step by step travel of the tool slide.
The work to be operated upon is clamped to a table under the tool, and the tool
is operated by a pressure bar suitably supported and connected with a treadle
which when depressed depresses the pressure bar, the slide moving forward the
required distance at each stroke of the treadle which after depression is raised to
the top of its stroke by suitable counterweights.
If desired for cutting small indexes, two or more cutting tools with their
respective tool slides, catches and adjuncts may be carried by the guide or slide
bed of one machine, and in this case the plate or cylindrical surface is arranged
with two or more sets of converging ribs or grooves.
Dated this Ninth day of August 1895.
THOS. WILKINS,
Agent for Applicant.
Improved Machine for Cutting Indented Edges for the Lettering of
the Index Pages of Account, Memorandum, and Letter Copying
Books, and for similar purposes.
ARTHUR HERBERT ALEXANDER, of 55 Radnor Street, City Road, London,
E.C., Engineer and Machinist, 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 index cutting machines of the class
described in Patent No. 20069, of 1894, in which the work to be operated upon
2.

page_text: clamped to a stationary table and a tool carrying slide is caused to travel a
iven predetermined distance between each cut in ide by the tool.
These improvements consist of means of more accurately, expeditily and
sitively adjusting and regulating the intermittent travel of the tool carrying
lide, and other details which I will now proceel to describe with the aid of the
ccompanying drawings in which like letters indicate like parts:-
Figs. 1, 2 and 3, are respectively a side elevation, front clevation and plan of
ny improved machine, the far details being omitted for the sake of clearness, and
hose parts forming part of my invention being shown in detail separately.
Fig. 4 is a diagram, showing a developement of the pattern surface bearing the
grooves that control the movement of the tool slide.
Fig. 5, is a side elevation of the slide, parts of its guide-ways being shown in
ection.
Fig. 6, is a longitudinal section, taken on the line x-a in Fig. 5.
Fig. 7, is a front elevation of the slide, the tool bar guide being broken off.
Fig. 8, is a partial plan of the slide.
Fig. 9, is a vertical section through the tool bar and its guide.
Figs. 10 and 11, are respectively a side and front elevation of the letter indicating
levice.
Figs. 12 and 13, are respectively a front and side elevation of the end gauge,
showing a part of the frame.
Figs. 14 and 15, are details showing respectively an elevation and plan of the
left hand link of the width gauge.
Fig. 16, is a section on line y-y, in Fig. 14.
Fig. 17 is a front elevation of the right hand link of the width gauge, showing
the tripping arrangement.
Fig. 18, is a detail showing an edge view of one of the flap lifting cams.
Fig. 19, is a vertical longitudinal section of a modified form of slide.
and
Fig. 20, is a front elevation of the same, with the tool bar guide broken off.
Fig. 21, is a side elevation and Fig. 22 a partial plan of the same.
Fig. 23, is a partial section, taken on the irregular line 2-2 in Fig. 20,
Figs. 24, 25 and 26, are respectively a plan, front and rear elevation of parts,
showing a modified construction.
This machine consists of a frame A, the upper surface, A¹, of which is planed and
has fitted at its right and left hand extremities, suitable blocks, A³, upon which
rests the cover, A³, where it is secured by the nuts, a, and the studs, a', which are
screwed into the frame, A.
In the space thus formed between the frame, A, and the cover, A³, is located
the slide, B, which is provided with flanges, b, adapted to overlap the edges of its
guideway so as to prevent its being moved transversely to the same.
To the forward end of the slide, B, is attached a chain, c, which is led over a
smail pulley, cl, journalled in the right-hand block, A2, and supports, at its other
end, the weight, C.
Just behind the frame, A, at approximately the same height as and parallel with
the slide guide-way, is located a roll, D, which is recessed at d* (see dotted lines
in Fig. 1) for the purpose of lightening this part.
This roll, D, is journalled in brackets, d, projecting in a rearward direction
from the blocks, A2, and is provided at one end with a suitable hand wheel, d',
with which to turn it in its bearings, one of which is split, and has ears, d³, and a
bolt, ds, with which to clamp the said roll in any desired position.
The surface of the roll, D, is provided with a series of grooves, d', one of which,
preferably the centre one, lies wholly in a plane at right angles to the axis of the
roll, D, while the other grooves, d', diverge at such angles as to equally divide
lines drawn upon the surface of the toll parallel to its axis.
On each side of the machine and in front of the slide guide-way, are rods E and E',
which are connected at their lower ends, by means of connecting rods E³, to the

page_text: treadle, carried by the snait, E, provided in front with a treadle board, ", and
in the rear with a counter-balance weight, E³.
These rods, E and E', slide in suitable guides, a*, attached to the frame, A, and
other guides, d', projecting from the blocks, A2, and support at their upper ends
the pressure bar, F, they also carry collars, e and el, above and below the guides, d',
respectively, to limit the movement imparted to it by the treadle, E', and counter
weight, E.
The frame, A, is supported upon standards, G, to which it is bolted at g, the said
standards having suitable tie rods, gl, and bearings, g, in which is journalled the
treadle shaft, E*.
A work supporting table, H, is supported on brackets, h, projecting from the
standards, G, the said table, H, being cut away at h', (see Fig. 3) to expose the
slots, h, with which each of the said brackets, h, is provided.
In these slots, ³, are located the sleeves, ³, having flats on their sides to prevent
rotation, and provided with a flange, 4, and screw-threaded at the top to receive
the clamping nut, h.
In these sleeves, ³, are placed the bolts, 1, which are prevented from turning
by means of a transverse pin (not shown) entering a slot in the sleeves, ³, the said
bolts are screw-threaded at their upper ends where they are provided with milled
nuts, 7, and have cam levers, h³, pivotted to their other ends.
To the base of the frame, A, are pivotted the parts I and I', of the width
gauge, which is substantially the same as that described in Patent No. 20069
of 1894, except as to the manner in which it is released to allow its springs, i and ¹,
to automatically throw it out of the path of the tool, l.
For this purpose the catch, 12, pivotted on the pin, 13, to the frame, A, is
provided, and is adapted to engage the ear, 4, of the part, 1, to hold the same
against the action of the springs, and 2, while the gauge is in use.
When in this position its tail, i, lies in the path of the part, e, secured to the
pressure bar rod, E¹, (see Fig. 1, and dotted lines in Fig. 17) so that when the
treadle is depressed the said part, e², depresses the tail, 5, of the catch, 3, thereby
releasing the ear, 4, which allows the springs, i and ¹, to operate to throw the
width gauge out of the way of the tool, 1, before it can reach the bar, I.
As the tail end,, which may be loaded, is considerably heavier than the other
end of the catch, 2, it will normally occupy the position indicated by full lines in
Fig. 17, in which position it will be out of the path of the part, e².
An end gauge, K, is provided (see Figs. 1, 3, 12 and 13) against which one edge
of the book, or other article to be operated upon is registered preparatory to being
clamped to the work table, H.
This end gauge, which is clearly illustrated in the drawings, consists of a dove-
tailed slide, k, provided with a fence, k', and capable of adjustment along a rib, k²,
forming part of the frame, A, (see Fig. 3) on which it can be clamped by the set
screw, k³.
A suitable lead or stick, J, is provided upon which the tool, 11 descends in
making a cut.
The slide, B, (see Figs. 5, 6, 7 and 8) consists of a block, B', having flanges, b,
and provided with a bore, b', adapted to receive a hollow plunger, 62, which is
provided with a plug, 63, capable of longitudinal adjustment within it by means of
a screw, 14.
This screw, has a milled head, 63, at one end and is reduced at the other to
fit a hole in the plate, 68, in which it is free to revolve, but is prevented from
being withdrawn by the head of the screw, 67, this plate, 68, is attached to the
end of the plug, 63, by means of suitable screws, a recess being formed to receive
the head of the said screw, b7.
This screw, 4, 1s provided with a nut, 68, which is pinned to the end of the
hollow plunger, 1, whereby the position of the plug, 63, is adjusted, and a check-
nut, , to prevent its shifting.

page_text: The hollow plug, 2, has a transverse hole in which is fitted the sliding catch,
bolt or pin, B, and a slot, 10, in which the other catch, bolt or pin, B³, carried by
the plug, 63, can slide when being adjusted.
A plate. b, having a central hole large enough for the check nut, 62, to pass
through, is secured by means of screws, z, to the block, B1, which serves the
purpose of a stop to limit the travel of the plunger, 62, in one direction, within the
bore, bl.
At the other end of the bore, b', a nut, 61, of an adjustment screw, 6", is:
pinned, the said adjustment screw acting as a stop to limit the travel of the
plunger, , in the other direction, and is prevented from shifting, after being set,.
by the check nut, 14.
Around this screw, 61, is placed a suitable spring, 61, which forces the-
plunger, , when free to move, against the plate, 6", at the other end of the-
bore, .
A graduated scale, 61, is supported by the pin, 6, and coöperates with the
divided head, 618, of the screw, s, to effect its accurate adjustment.
The catches, bolts or pins, B and B³ (hereinafter referred to as pins) are each
provided with a head, 6, and a shoulder, 620, at one end, and are tapered at the.
other end, to enter the grooves, d, of the roll, D.
Between the head, 6, and shoulder, 620, of the pins B and B³, the lower edges
of the flaps, and f', operate to withdraw or insert the said pins as will hereinafter
be explained.
These flap, fand f', are hinged to the studs, f, and have suitable springs, f
and, wound around their hinge pins, f and f, which normally act in the-
direction to cause the flaps, f and 11, to insert the pins, B and B³, while the inclined
end of the projecting part, 1, carried by the tool bar, L', engages with the upper-
parts of the said flaps to throw them in and thus cause their lower ends to withdraw
the said pins, B2 and B, on the descent of the said tool bar, L¹.
Suitable flap-lifting cam levers, 17, are provided, having inclined parts, f³, (see
Fig. 18) which, when turned in the direction of the arrows, in Fig. 7, engage the
pins, of the flaps, fand f', to cause the said flaps to withdrawn the pins B
and B, and keep them in an inoperative position until the said cam levers, f', are
returned to the position shown in the drawing.
>
The tool bar, L', its guide, L, which is bolted to the front of the slide, B, an'
other parts belonging to it, are substantially the same as described in Patent
No. 20069 of 1894, and do not form part of my invention, I therefore shall not
fully describe its details, which are clearly illustrated in Figs. 5, 9, 10 & 11.
To the side of the tool-bar guide, L, is journalled a flanged wheel, m, on a.
suitable pin, m', this pin has a shoulder, m², against which a ratchet wheel, m³, and
the flange wheel, m, to which it is attached, are pressed by the spring plate, m; a
suitable nut, m, being provided to keep the parts on the said pin, m'.
On the periphery of the wheel, m, are indicated the letters of an index, space
being left by the side of each letter for the insertion of the number of pages that
letter is to have in the index.
A pawl, m, is pivotted to the part, m', carried by the tool bar L', which is
caused to engage the ratchet wheel, m³, each time the tool bar descends to make a
cut, with the result that the wheel, m, is moved a distance that will bring the next
letter of the index to be cut over the reader, m³.
A spring, preferably an elastic band, m, is applied to the tail end of the pawl, me,
to enable it to yield as it ascends; the wheel, m, being prevented from turning back
by frictional contact with the shoulder, m².
10
A screw,, is also provided to adjust the position of the pawl, m, and so
regulate the amount of rotation imparted to the wheel, m, to enable the same to
be moved more than one letter at a time as required for two or more letter
indexes.
The operation of the machine is as follows:-After having set the machine to
cut the desired sized index, which process will hereinafter be described, the

page_text: tool-carrying slide, B, is brought to the left hand end of the machine and the tool
is caused to descend by depressing the treadle, which draws with it the connecting
rods, E², the pressure bar rods, E and E', and the pressure bar, F, which, in turn
bears upon the tool bar, L', carrying the tool, l, at its lower end.
The book in which the index is to be cut is then placed square against the
right-hand side of the tool, 14, and the end gauge, K, is slid up to it and there
clamped.
The tool is now allowed to rise and the width gauge is brought forward and
retained in position by the catch,, the work clamp is now adjusted to its right
distance from the tool, l, according to the size of the work to be operated upon,
by slackening the nuts, 4, and sliding the sleeves, &, along the slots, h², after
which the said nuts, h, are tightened.
The work, a book for instance, is now placed under the clamping bar, H¹, with
its covers, and those of its leaves that are not to be used for the index, turned back,
the remaining portion is then placed face downwards with its edges resting against
the bar, 1, of the width gauge, and the fence, k¹, of the end gauge, the milled
nuts, h, are now screwed down to the clamping bar, H', and the work is finally
clamped by means of the cam levers, 48, as clearly shown in Fig. 1.
When the tool-carrying slide, B, was moved to the left hand end of the machine,
the pin, B, was made to enter the last groove, d, at that end of the roll, D, and
the weight, through the chain, c, pulled the slide block B', so as to cause the
spring,, to be compressed until the adjustable stop, 613, came in contact with
the plunger, 63, with the result that when the tool-bar, L', was caused to descend,
the inclined end of the part, l, carried by it, engaged the upper ends of the
flaps, and f, which were forced in and their lower ends out, carrying with them
the pins, B and B*.
The plunger, &, now being free to move forward, owing to the said withdrawal
of the pin, B2, from the groove, d', of the roll, D, is forced against the stop
plate, 6, by the expanding of the spring, b, in which position the other pin, B³,
will be opposite another groove, d' on the roll, D, and will be forced into it when
the part, 7, ascends and allows the spring, f to operate the flap, f', that controls
the movement of that said pin, B³.
The tool, , having ascended after the preparatory descent which enabled the
end gauge, K, to be accurately set, will before its second descent have been again
moved forward by the weight a distance controlled by the adjustable stop, 613, and
will now be in a position to make the first cut in the index.
The last section in the index is now lifted clear of the tool, 1, and the first cut
made (in the index) during which operation the pins, B and B³, will again be
withdrawn by the part, l, operating the flaps & f1, and the plunger, &, will again,
be forced forward as far as the stop plate, 61, and on the ascent of the tool-bar, L',
the pin B will be let into another groove, d', of the roll, D, and as soon as the
slide block, B', is relieved of the pressure and friction put upon it by the compression
of the spring,, within the tool-bar, L', the said slide block, B', will be again
drawn forward by the weight, C, until stopped by the adjustment screw, 63, coming
in contact with the plunger, 3, and thus the tool will travel the predetermined
distance between each cut.
After the book was clamped in position and the treadle depressed to make the
first cut, the part, e, attaclied to the pressure bar rod, E, first engaged the tail,,
of the catch,, thereby releasing the width gauge which was immediately thrown
back out of the path of the descending tool by the springs, & 2¹.
To set the machine to cut an index of a given length of six inches or over, the
pin, B, only is used, the other one being rendered inoperative by turning its flap
lifting cam, f, the nut, d³, is then slackened and the roll, D, turned in its bearings
by means of the hand wheel, d', until the graduated scale, d', at the right-hand end
of the said roll, D, registers the desired size against the reader, de, attached to
the cover, A, after this is done the nut, d³, is tightened and the other flap-lifting
cam,, is temporarily turned to withdraw the pin, B2, while the slide, B, is moved

page_text: to the left until the said pin, B', is opposite the last groove, d', at that end of the
roll, D, when the said pin, B³, is allowed to enter it by restoring the left-hand
flap-lifting cam, f', to the position shown in the drawings, the adjustable stop, 618,
is then set to an equal graduation to the roll, D.
These graduations on the roll, D, and on the graduated scale, 61, and divided
head, 618, of the adjustable stop, 613, show the length of the book that the machine,
when both parts are adjusted to the same measurement, will cut 24 steps in, the
roll, D, however, may have additional graduations arranged side by side, and
co-operating with the same reader, d, to show the length of book in which may be
cut any other number of steps; the adjustable stop, 61, in the slide, B, in such a
case being set as follows:-
Supposing it is de-ired to cut 26 steps in a book of a given length, the roll, D,
is turned until that length, on the "26" scale is in line with the edge of the
reader, d, it is then clamped by means of the nut, d³, and the adjustable stop, 61,
is set to the measurement registered by the reader on the "24" scale.
When, however, it is desired to cut an index to books between three and six
inches in length, both of the pius, B and B³, are used and the roll, D, must be set.
to just double the size required.
The slide B, is now bought to the left so that the pin, B³, enters the last
groove, d, at that end of the roll, D, the plug, 63, which carries the pin, B3, is then
adjusted by means of the screw, 6, to its greatest distance from the pin, B, and
the adjustable stop, 13, is set to half the size registered on the "24" scale, the
treadle is now depressed, causing the plunger, 62, to be forced by the spring, 66, up
to the stop plate, b, after which the tool-bar, L', is allowed to rise sufficiently for
the part,, carried by it, to allow the springs, 3 and 4, to act on the flaps f
and f, the screw, 6, is now turned in the opposite direction until the pin, B,
comes opposite one of the grooves, d', in the roll, D, into which it is pressed by;
the spring, f, acting upon its controlling flap, f'.
The conditions set up by this adjustment are as follows:-The pitch of the
grooves, d, at that part of the roll, D, traversed by the pins, B and B³, is exactly
double the distance between each step of the index to be cut; the distance that the
plunger, 62, is allowed to travel by the adjustment of the stop, 613, is just equal to
the said distance between each step of the index, while the distance between the.
two pins, B and B³, 1s such that when one of then. is in a groove, d', the other is
just half way between two others, as shown in Fig. 3.
In Figs. 19 to 23 is illustrated another form of slide in which the pin B³, only
moves, relatively with the slide. in a direction to and from the pattern surface,
with which it cooperates, which may be a 1oll, such as already described, or a
plate such as will hereinafter be described in a further modification.
This slide which, to prevent confusion I will call, Bx, has a longitudinal bore, b¹,
in which shdes a plunger, 62, carrying a pin, B2, adapted to slide in suitable slots
with which the said slide, BX, 1s provided, when the said plunger, &, is forced
against the adjustable stop, bx, at one end of the said bore, b, by the spring 6, at
the time when the said pin, B. is withdrawn from engagement with the pattern
surface.
This lide, B*, is provided with another adjustable stop, 613, at the other end of
its bore. 6, which limits its movement when being acted upon by a weight
attached by a chain to its forward end at, cx, by coming in contact with the
plunger, 2, when the pin, B2, is in engagement with a groove, d', of the pattern
surface, and when the pin, B3, is withdrawn from such engagement.
These pins, B and B³, are operated by a flap, x, and by a lever, f¹×,
respectively, which flap, fx, is actuated by the inclined end of a part, l, carried by
the tool-bar, L', on its descent, while the lever, fx, is actuated on its ascent by
the pin, *, attached to the part, l, engaging its inclined top.
The fla, has a spring, 3x, wound around its hinge pin, fx, which operates
in the direction to insert the pin, 132, while the pin, B, is forced into engagement

page_text: with a groove, d', of the pattern surface, on the descent of the tool-bar, L', by a
spiral spring, fx, contained in a recess formed in the tool-bar guide L.
In operation the pin, B2, enters a groove, d, of the pattern surface when the
tool-bar, L', ascends, the said tool-bar also withdraws the other pin, B³, at the top
of its stroke, after which the weight pulls the slide, Bx, along, compressing the
spring, until the adjustable stop, 61, strikes the plunger, 6, when the said
pin, B, carried by it will be opposite the next groove, d, to that it previously
occupied; and, when the said tool-bar L', descends, the pin, B, will be forced into
the said next groove and at the bottom of its stroke the pin, B' will be withdrawn
and the plunger, 1, forced against the other adjustable stop, 611x, by the expansion
of the spring, 1.
To adjust the slide, B*, the stop, 611x, is screwed in as far as it will go, and the
pin, B3, is caused to enter the last groove, d, at the left hand end of the roll, D,
the stop, 618, is then adjusted to bring the pin, B³, opposite another groove, d³, ou
he pattern surface, the said pin, B3, is then allowed to enter the said groove by
partially depressing the tool-bar, after which the pin, B2, is withdrawn by hand,
and the other stop, 6x, is screwed in the opposite direction until the said pin, B²,
is inserted into another groove, d', on the said pattern surface, by the spring, f**,
acting upon its controlling flap, f*.
This adjustment is facilitated by providing graduations on the front of the
guide-way (not shown in the drawings) to show the proper position of the slide
when one or both the stops are accurately adjusted.
In a modified construction shown in Figs. 24 to 26, a plate, Dx, sliding in
vertical guide-ways, D', is used in place of the roll, D.
This plate, which is placed at the back of the slide guide-way, has formed upon
its front surface ribs or grooves d', arranged in a similar manner to those on the
.roll, D.
This plate, D*, has a suitable scale or scales (not shown) adapted to co-operate
with a line, or other suitable reader attached to the frame or other stationary part,
whereby any desired part of the plate may, by means of the hand-wheel, dix,
screw, d, carried in a suitable bearing, dx, and nut, dx, be brought into the
proper position to be engaged by the pins, B and B3, of the slide, B or B*, in the
operation of the machine.
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. In an index-cutting machine, having an intermittently travelling tool-carrying
slide; the use of a roll, plate or other pattern surface having ribs or grooves whose
direction is such as to cause them to diverge proportionately in one direction, and
converge at a point, if produced, in the other, the said part being adjustable in
suitable guide ways or bearings, and having proper graduations to cooperate with
a reader so as to enable any part of its surface to be brought into position to
receive and coöperate with one or more moveable pins or teeth supported by the
tool carrying slide for the purpose of regulating and controlling the movement of
the said tool-carrying slide in a manner substantially as described and for the
purposes set forth in the specification.
2. In an index-cutting machine, having a roll, plate or other pattern surface
substantially as referred to in Claim 1; the use of a tool-carrying slide bored
longitudinally to receive an internal slide and having one or more suitable pius or
teeth one or more of which extend through longitudinal slots and are carried by 5
the said internal slide which is caused to engage suitable stops at each end of its
bore or guide-way by a spring and by the forward movement of the tool-carrying
slide alternately, the said pins or teeth, which lie in a direction at right angles to
that in which the slide moves being normally forced in one direction by springs,
and in the other by means of one or more flaps or levers actuated by one or more 5

page_text: cams, pins or their equivalents, carried by the tool bar or other convenient part of
the machine, all substantially as described in the specification.
3. In an index-cutting machine, having a roll, plate or other pattern surface
substantially as referred to in Claim 1; the use of a tool carrying slide adapted to
be intermittently moved along a horizontal guide way by means of a weight and
chain or their equivalents whose action is controlled by one or more moveable pins
or teeth, with which the said tool-carrying slide is provided and which normally
engage one or more grooves or ribs of the said pattern surface and are withdrawn
together or separately when the said tool-carrying slide is held stationary by the
pressure bar, by means of cams or pins carried by the tool-bar or other part moved
by the said pressure bar, whereafter one or more of the said pins or teeth are caused
by a spring to travel forward, in the slide, a distance that will enable the said pins
or teeth, or one of them, to engage the next groove or rib to that it last engaged
when permitted to do so, after which the tool-carrying slide, when released, is
urged forward by the weight until au adjustable stop with which it is provided,
engages one of the pins or teeth or a part with which such pin or tooth co-operates,
all substantially as described and for the purposes set forth.
4. In an index-cutting machine of the kind referred to in the preceeding claims;
the use of a tool-carrying slide substantially as described with reference to
Figs. 5, 6, 7 and 8.
5. In an index-cutting machine of the kind referred to in the preceeding claims,
the use of a tool-carrying slide substantially as described with reference to
Figs. 19, 20, 21, 22 and 23.
6. In an index cutting machine, the combination of an adjustable roll, plate or
other pattern surface having grooves or ribs, with a slide arranged and
co-operating therewith substantially as described with reference to Figs. 5, 6, 7
and 8.
7. In an index-cutting machine, the combination of an adjustable roll, plate or
other pattern surface having grooves or ribe, with a slide arranged and coöperating
therewith substantially as described with reference to Figs. 19, 20, 21, 22 and 23.
8. In an index-cutting machine, the use of a width-gauge in combination with
a tripping device operated by a pin or equivalent part attached to one of the
pressure bar rods in the manner specifically as described and for the purpose set
forth.
9. An index cutting machine having the following instrumentalities:-A work
supporting table; a tool-carrying slide having an intermittent movement imparted
to it between each cut of the tool; a pressure bar extending across that part of the
machine traversed by the tool carrying slide and supported by vertical rods
connected with the treadle by suitable connecting rods; an end gauge; a width
gauge automatically thrown out of the path of the tool before the said tool can
reach it; and a letter indicating device, all arranged, combined and coöperating
substantially as described and for the purposes set forth in the specification.
10. The general arrangement and combination of parts constituting an index
cutting machine substantially as described and for the purposes set forth in the
specification.