Year: 1896

page_text: Date of Application, 16th May, 1896
Complete Specification Left, 16th Feb., 1897-4ccepted, 16th June, 1897
1, ALFRED HERBERT of "Brantwood," Spencer Road, Coventry in the County
of Warwick, Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to lathes of the type commonly known as capstan or
turret lathes.
The general construction of the lathe headstock and bed would be as usual, my
improvements relating only to the turret or capstan the capstan tools and stops and
the mechanism connected with the capstan.
In most of the forms of capstan lathes at present existing the turret consists of a
circular block of metal with boles bored radially round its circumference to receive the
different tools, which tools are provided with shanks fitting into these holes and
projecting outward from the capstan.
For boring and recessing operations, it is an advantage, and in fact a necessity, to
have projecting tools but for such work as the turning of bars, pins, studs, and general
outside turning, (as distinguished from boring) the use of projecting tools is a great
disadvantage, as it greatly decreases the rigidity of the tools and puts very severe
strains on the capstan locking mechanism, owing to the long leverage of the
projecting tools.
Furthermore, the tools ordinarily used are expensive and complicated to produce and
to sharpen.
In my improved form of capstan rest, while retaining the ability to use projecting
tools for any special work in which they are required, I am enabled to use tools which
only project very slightly from the turret and which furthermore are extremely simple
to construct to sharpen and to adjust.
Instead of the usual cylindrical block, of which the turret is formed, in ordinary
lathes, I use a hexagonal or polygonal block which may be either solid or hollow: on
the flat sides or faces of the capstan block I attach the various tools while I also bore
the usual radial holes in the turret, which may be used for holding projecting tools by
their shanks, when required.
These holes are made of such a size that they may be fitted with bushes for supporting
the finished portions of the work, and, in fact, acting as steadies and by arranging these
holes to pass clear through the capstan block from side to side, I am enabled to deal
with or to turn bars and other articles of considerably greater length than can be dealt
with in an ordinary capstan lathe with projecting tools.
In order to permit the holes to pass clear through the turret as before mentioned,
I arrange the centre pin or pivot upon which the turret revolves to be below, and thus
clear of these holes.
The tools I use on this capstan are of various forms for plain turning they consist
of a tool block of cast iron, or other suitable material, bolted to the turret face, and
provided with a tool holder or tool post, carrying a tool made of rectangular bar steel
similar to that used in an ordinary lathe, and, consequently, cheap to produce and easy
to sharpen.
This tool may be used either independently cf, or in conjunction with, the bush or
steady, mentioned above, as the work may require.
Furthermore I am enabled by my construction of capstan to perform two or more
operations simultaneously, instead of separately, as has heretofore been usually done.
For example, a drill or boring or other tool, may be held in the central hole of the
capstan, while the turning or other tool is held in the tool holder, so that a collar

page_text: or similar article may be bored and turned, or bored, turned and faced, at one
operation.
For convenience in adjusting the tools and steadies to suit work of a miscellaneous
character I may arrange the tool to be carried in a hinged or swinging holder, capable
of being adjusted by a screw and of being withdrawn from its cut by means of an
eccentric or other device, and, instead of the fixed bushes for supporting the work I
may use adjustable angular or V-shaped steadies, fitted to the capstan face, or to a
casting attached the reto and capable of being adjusted to suit work of different sizes.
In ordinary practice it is usual to fit a cut-off rest on the bed of capstan lathe, for
the purpose of shaping and cutting off from the bar, the work, after it has been operated
on by the capstan tools. This cut-off rest is, in many cases, inconvenient, as it is in
the way of and interferes with the capstan tools and moreover prevents the capstan
from being brought as near to the chuck of the headstock as would be otherwise
desirable.
To obviate this difficulty I prefer to use a special form of cutting off rest, which is
attached to one of the flat faces of the turret and revolves with it, so that it does not
prevent the turret from being brought close up to the chuck when required.
Owing to the before-mentioned arrangement for the bars to pass clear through the
turret, it is possible by this arrangement of cut-off rest, to operate on bars of almost
any length.
I may construct my turret slide in the ordinary way, that is, by mounting the
turret block on a slide working in a saddle block which latter is clamped in the lathe
bed but I prefer for the sake of increasing the firmness of the capstan, and for giving
a greater height or clearance under the tools, to mount my capstan on a saddle fitted
directly to the bed of the lathe, and actuated by a rack and pinion, screw, or other
suitable mechanism, either by hand or automatically.
The ordinary capstan rest is provided with one adjustable stop only, and as it is
desirable that the travel of each of the successive tools, should be controlled by the
stop, to avoid the trouble of separately measuring and gauging for each operation, it
becomes necessary to adjust the various tools to project more or less from the capstan,
so that the travel of each of them shall be controlled by this one stop, which is found
in practice extremely inconvenient to arrange.
In order to avoid this, I prefer to fit a separate stop for each tool. For a hexagonal
turret these stops would be six in number and would consist of rectangular bars of iron
or steel, fitted side by side into recesses in the bed of the lathe, and passing underneath
the saddle on which the capstan is mounted.
Each of these bars is furnished with a notch at or near the end which is nearest to
the headstock of the lathe, and six or more pawls or catches swinging upon a horizontal
bar fixed in the saddle are so arranged that they tend to drop on to each stop bar and
to engage with the notches in the same when they are brought over the notches.
In order to secure the desired result it is necessary that only one of these pawls
(viz. the one belonging to the stop bar which is set to control the tool in use) should
engage with this stop bar and that the other five pawls should be held clear; in order
to effect this I employ in conjunction with each pawl a small plunger and these
plungers are controlled by a series of projections on and recesses in the under face of
the capstan block, which are arranged in such a way that in every position of the
turret five of the pawls are held up and the sixth, viz. :-the one corresponding with the
particular tool in action, is permitted to drop and so engage with the stop bar when
the capstan slide comes to the limit of its travel.
In cases where an automatic feed to the capstan slide is employed I may, by suitable
modifications, arrange the before described stop motion in such a manner as to
automatically trip the automatic feed and so stop the travel at any desired point for
each of the successive tools.
Dated this thith day of 1000
BOULT & WADE,
Agents for the Applicant.

page_text: I, ALFRED HERBERT of "Brantwood," Spencer Road, Coventry in the County of
Warwick, 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 lathes of the type commonly known as capstan or turret
lathes.
The general construction of the lathe headstock and bed would be as usual, my
improvements relating only to the turret or capstan the capstan tools and stops and
the mechanism connected with the capstan.
In most of the forms of capstan lathes at present existing the turret consists of
a circular block of metal with holes bored radially round its circumference to
receive the different tools, which tools are provided with shanks fitting into these
holes and projecting outward from the capstan.
For boring and recessing operating, it is an advantage, and in fact a necessity,
to have projecting tools but for such work as the turning of bars, pins, studs, and
general outside turning, (as distinguished from boring) the use of projecting tools is
a great disadvantage, as it greatly decreases the rigidity of the tools and puts very
severe strains on the capstan locking mechanism owing to the long leverage of the
projecting tools.
Furthermore, the tools ordinarily used are expensive and complicated to produce
and to sharpen.
In my improved form of capstan rest, while retaining the ability to use projecting
tools for any special work in which they are required, I am enabled to use tools
which only project very slightly from the turret and which furthermore are extremely
simple to construct to sharpen and to adjust.
Instead of the usual cylindrical block, of which the turret is formed, in ordinary
lathes, I use a hexagonal or polygonal block which may be either solid or hollow: on
the flat sides or faces of the capstan block I attach the various tools while I also bore
the usual radial holes in the turret, which may be used for holding projecting tools
by their shanks, when required.
These holes are made of such a size that they may be fitted with bushes for
supporting the finished portions of the work, and in fact, acting as steadies and by
arranging these holes to pass clear through the capstan block from side to side, I am
enabled to deal with or to turn bars and other articles of considerably greater
length than can be dealt with in an ordinary capstan lathe with projecting tools.
In order to permit the holes to pass clear through the turret as before mentioned,
I arrange the centre pin or pivot upon which the turret revolves to be below and thus
clear of these holes.
The tools I use on this capstan are of various forms for plain turning they consist
of a tool block of cast iron, or other suitable material, bolted to the turret face, and
provided with a tool holder or tool post, carrying a too! made of rectangular bar
steel similar to that used in an ordinary lathe, and, consequently, cheap to produce
and easy to sharpen.
This tool may be used either independently of, or in conjunction with, the bush
or steady, mentioned above, as the work may require.
Furthermore I am enabled by my construction of capstan to perform two or
more operations simultaneously, instead of separately, as has heretofore been usually
done.
For example, a drill or boring or other tool, may be held in the central hole of the

page_text: capstan, while the turning or other tool is held in the tool holder, so that a
collar or similar article may be bored and turned, or bored, turned and faced, at one
operation.
For convenience in adjusting the tools and steadies to suit work of a miscellaneous
character I may arrange the tool to be carried in a hinged or swinging holder,
capable of being adjusted by a sciew and of being withdrawn from its cut by means
of an eccentric or other device, and instead of the fixed bushes for supporting the
work I may use adjustable angular or V-shaped steadies, fitted to the capstan face, or
to a casting attached thereto and capable of being adjusted to suit work of different
sizes.
In ordinary practice it is usual to fit a cut-off rest on the bed of a capstan lathe,
for the purpose of shaping and cutting off from the bar, the work, after it has been
operated on by the capstan tools. This cut-off rest is, in many cases, inconvenient, as
it is in the way of and interferes with the capstan tools and moreover prevents the
capstan from being brought as near to the chuck of the headstock as would be
otherwise desirable.
To obviate this difficulty I prefer to use a cutting-off rest, which is attache to one
of the flat faces of the turret and revolves with it, so that it does not prevent the
turret from being brought close up to the chuck when required.
Owing to the before-mentioned arrangement for the bars to pass clear through the
turret, it is possible by this arrangement of cut-off rest, to operate on bars of almost
any length.
I may construct my turret slide in the ordinary way, that is, by mounting the
tarret block on a slide working in a saddle block which latter is clamped to the lathe
bed; but I prefer for the sake of increasing the firmness of the capstan, and for
giving a greater height or clearance under the tools, to mount my capstan on a
saddle fitted directly to the bed of the lathe, and actuated by a rack and pinion,
screw, or other suitable mechanism, either by hand or automatically.
The ordinary capstan rest is provided with one adjustable stop only, and as it is
desirable that the travel of each of the successive tools, should be controlled by
the stop to avoid the trouble of separately measuring and gauging for each operation,
it becomes necessary to adjust the various tools to project more or less from the
capstan, so that the travel of each of them shall be controlled by this one stop,
which is found in practice extremely inconvenient to arrange.
For a
In order to avoid this, I prefer to fit a separate stop for each tool.
hexagonal turret these stops would be six in number and would consist of rect-
angular bars of iron or steel, fitted side by side into recesses in the bed of the
lathe, and passing underneath the saddle on which the capstan is mounted.
Each of these bars is furnished with a notch at or near the end which is nearest
to the headstock of the lathe, and six or more pawls or catches swinging upon a
horizontal bar fixed in the saddle are so arranged that they tend to drop on to each
stop bar and to engage with the notches in the same when they are brought over the
notches.
In order to secure the desired result it is necessary that only one of these pawls (viz.
the one belonging to the stop bar which is set to control the tool in use) should engage
with this stop bar and that the other five pawls should be held clear; in order to
effect this I employ in conjunction with each paw! a small plunger and these plungers
are controlled by a series of projections on and recesses in the under face of the
capstan block, which are arranged in such a way that in every position of the turret
five of the pawls are held up and the sixth, viz., the one corresponding with the
particular tool in action, is permitted to drop and so engage with the stop bar when
the capstan slide comes to the limit of its travel.
In cases where an automatic feed to the capstan slide is employed I may by
suitable modifications, arrange the before described stop motion in such a manner as
to automatically trip the automatic feed and so stop the travel at any desired point
for each of the successive tools.

page_text: in the accompanying drawings
Fig. 1 is a side elevation of a portion of the bed of a turret lathe, upon which is a
capstan and stop gear according to this invention.
Fig. 2 is a plan of the apparatus shown in Fig. 1.
Fig. 3 is an elevation, seen from the rear of the lathe bel, of a saddle and capstan,
such as shown in Fig. 1 fitted with an improved stop gear according to this invention;
Fig. 4 is a plan (with the upper portion removed) and,
Fig. 5 an end elevation of the stop gear shown in Fig. 3.
Fig. 6 is a front view,
Fig. 7 a side elevation,
Fig. 8 a plan of an improved carrier for tool and "steady" according to this
invention;
Fig. 9 is a front elevation and
Fig. 10 a side elevation of an alternative construction of tool carrier according to
this invention, whilst
Figs. 11 and 12 illustrate in plan and front elevation respectively the manner in
which tools can be employed on a turret of the type her in described.
With reference first to Figs. 1 and 2, A is part of a lathe bed on which a saddle B
slides, the latter being operated by hand or hand and power feed mechanism of the
kind commonly employed in such apparatus and therefore needing no specific
description. Cis a polygonal turret pivotted to the saddle B to rotate thereon and
having passages C bored through it from side to side for the passage of work and
to serve as holders for tools when so required. The turret has a central cylindrical
pivot C extended from its under side (Fig. 1) to turn in a hole in a saddle B into
which it fits; a pivot or clamping pin C by which the turret is clamped in
place in the saddle is received in the pivot C below the level of the passage-ways C.
The pin (3 has a collar C at its upper end taking a bearing from the adjacent
portion of the pivot C2; its lower end is threaded into a gib-plate C, in such
manner that by tightening up the pin 3 the gib-plate can be drawn against the
adjacent flanges B, of the saddle (which it overlaps) to clamp the turret in any
position to which it may have been adjusted. C' is a square head on the pin C³ to
which a detachable clamping handle C can be applied as indicated in Fig. 1. By
making the key movable the advantage of a central clamping-device are retained
without obstructing the horizontal passage-ways through the turret.
The turret C is made with a number of flat faces C into which the tool holes C¹
are bored as shown; being flat these faces C afford a good bearing for tool carriers
such as are hereinafter described.
In the saddle B is fixed a rod D extending transversely across it (Fig. 2); on this
rod are threaded a series of pawls D-D hooked at their ends, as shown in Fig. 1,
so that each may engage under the circumstances hereinafter described, with that one
of a series of bars EE to which it is appropriated, to stop the movement of the
saddle B, one bar such as E' for instance being appropriated to one pawl such as D',
and one pawl being appropriated to each one of the turret faces, and each bar being
notched as at E', Fig. 1. In the said fig. the nearest bar E and the pawl Do
appropriated thereto are shown the latter being indicated in two positions, in one
of which it is in engagement with the bar E and in the other of which it is clear
of the bar.
In the saddle are a series F-F of plungers each appropriated to a correspon ling
pawl of the series D-D and so disposed that its lower end is received in a socket
at the heel of its pawl and its upper end is guided in a perforation in the top of the
central portion of the saddle in such a manner that it can be moved end wise.
Normally the upper end of all the plungers bear against the under face of the
turret C, but there are six depressions ce in that under face so disposed that only
one of them can be brought over any of the pawls at a time, the depressions and
plungers are so located in relation to each other that each plunger will only be
operated by that depression to which it is appropriated. When the proper depression
is over its related plunger, like for instance the depression c (Fig. 1) shown as

page_text: being at the moment above the plunger F, the corresponding pawl (De in this case)
will rest with its hooked end upon the har immediately below it (E) in realiness to
drop into the notch and stop the movement of the slide as soon as the latter brings
the pawl to the place at which the notched portion of the bar is set, it being
understood that the bars E-E are adjustable endwise in the bed of the lathe, to suit
the movement required for the different cats, and can be locked in the position to
which they are thus adjusted. By rotating the turrat to bring the tools carried upon
its different faces into action the pawl corresponding to each face is automatically
brought into readiness to limit the movement as desired, and the other pawis are kept
out of action. The depressions e-care so formed that they serve as cam surfaces,
which when the depression is moved from over a plunger which it has received, it
will automatically thrust the latter down and so elevate the hooked end of the pawl,
gravity causing each pawl to descend or tend to descend when the upper end of its
plunger is oppo-ite the proper depression.
Figs. 3, 4 and 5 illustrate an improved hand and antonatic apparatus employed in
combination with pawls, such as DD, and bars E-E for throwing the feed out
of action, the apparatus serving to trip or throw off the automatic feed at any
desired point and also serving to act as a deal stop to the saddle in controlling
any additional feed which may be subsequently given thereto by hand.
In this apparatus instead of the rod D hring fixed in the saddle it is hinged or
pivotted thereto at its end 17 near to the front of the lathe in such a manner that
its end D can have a slight reciprocatory movement in a horizontal plane within
extreme limits in the saddle determined by two fixed stops B B2 fixel in the saddle B.
The end of the rod 1) extends through a slot in the back of the saddle B and
its projecting end is squared (Fig. 3). A spring G is placed in compression between.
the rod D) and a portion of the saddle in such a manner as to tend always to keep
the rod against the stop B2. H is a plate held against a flat overhanging
portion B of the saddle by a pin B which passes through a slot H' in the plate, so
as to give the latter freedom to move upon it vertically. In bearings H on this
plate H the worm J, driven in the usual or other convenient manner is journalled,
and the gearing K K K K by which feed movement is given to the slide is
supported in part by the saddle proper and in part by the extension B³, consequently
by raising or lowering the plate H the worm J can be moved into or out of gear
with the wheel K to respectively start or stop the feed, it being understood that the
additional worm J is driven continuously and connected to the driving pulley by gear
having a certain amount of freedom of movement to enable the worm shaft to rise & fall
as required. Upon the plate H is secured a bar H3 in which is a notch H adapted
to receive the square end 1 of the har D and so disposed that if the plate H
be moved up on the extension B³ the notch H will move clear of the squared
end D of the rod, whereupon the latter will be forced by the spring G against
the stop B (Fig. 4) referred to; the stop 1 and the notch H are so disposed
in relation to each other that when the squared end D8 is thus acted upon
by the spring G it will come below the face H of the lar H and support the
latter and the plate H in such a way as to keep the worm J in gear with the
worm wheel K and cause the movement of the worm to be transmitted through
the gearing K K K K³ to the slide; but if by any means the squared end Ds of the
rod D be drawn from under the face H5 of the bar H3 into line with the notch H
the plate H and worm J will descend together under the influence of gravity, so
that the rotating worm will no longer be able to effect the rotation of the wheel K
and therefore the feed will be stopped. This movement of the rod D can be effected
automatically by a small movement of the saddle B relatively to the squared end
thereof upon the engagement of one of the pawls say D with its rod E¹, in the
manner hereinafter explained, or it may be effected manually as will presently
appear. Pawls D¹ to L are threaded on this pivotted rod D and can be operated by
bars EE such as has been hereinbefore referred to, but to enable this pivotted
spindle to be controlled also by band we provide it with a hook D (Fig. 3) shaped
to engage with one face L' of the cam L carried on a hand shaft M pivotted in the

page_text: saddle B and controlled by a single handle M' at the front of the machine; its other
end is under a pin H (Fig. 3) projecting over it from the plate H. By turning
this handle in the direction of the dotted arrow shown thereon in Fig. 3 the end I
of the projection L' on the shaft M can be caused to pull the hook D' on the shaft D
and move the squared end D of the latter under the notch H' in the bar H³, thus
permitting the plate H and the worm J to drop without waiting for the operation
of the rod D by one of the pawls D-D. Movement of the handle M' in a reverse
direction causes the projection L2 of the cam L on the shaft M to raise the plate H
and worm J up again by acting upon the pin H, whereupon the spring G causes
the squared end D to again engage the underside H of the bar H and hold the
plate H up and the worm in gear, as aforesaid; thus the movement of a single handle
starts and stops the feed. If desired the action of gravity upon the plate H may be
supplemented by that of a spring or an added weight, and it may be provided with
buffing devices to deaden shock in its vertical descent.
The width of the notch H is such that it does not exactly coincide with the length
of the side of the squared portion Ds of the rod D to which it is opposed, being
slightly longer in order that if the bir H3 has descended with the plate H over that.
squared end there may be sufficient clearance hetween the side of the squared
portion D8 on which the spring G is placed, and the adjacent side of the notch to
allow of a slight further feed movement, say for a finishing cut being given to the
slide after the worm J has dropped out of gear. The stop B is so disposed as to
come against the rod D at the conclusion of this further feed movement, and effect a
dead stoppage of the slide.
The bar H³ may be integral with the plate H or may be so connected to it as
to he capable of receiving adjustment to compensate for wear.
With reference now to Figs. 6, 7 and 8, N is the main plate or body of the tool
carrier which is suited to be attached to one of the flat faces of the hexagonal
turret C by screws bolts or otherwise and is retained in its correct position thereupon
by means of a check or projecting piece N' fitting into a corresponding recess in the
face of the turret. On the front of this plate planed guides N2 N3 are provided into
which is fitted a holder O dove-tailed as shown in Fig. 7 and carrying provision
for clamping within it any desired form of tool or either, such for instance as the
tool P shown in Figs. 6 and 7 as being secured in place in a recess between the
flanges O O by screws 03 and packing wedges O' in the holder. This tool-holder O
can be moved (even while the tool or cutter is in actual operation) in the guides N' N³
toward or away from the work which extends through the central orifice N in the
body N. In the example illustrated the underside of the holder is provided with a
rack O with which engages a worm Q carried upon a spindle Q' journalled in the
bottom guide N and provided with a mitled head Q by which it may be rotated to
move the holder O backwards and forwards in the guides. R is a cylindrical washer
with a portion of its edge bevelled, and inserted in the upper guide N' and provided
with a screw R by which it may be drawn tightly down upon one edge of the
holder O to clamp the latter in place. SS are adjustable steadies checked in the face
of the plate N and held down in those grooves by the screw T which passes through
a slot formed in the meeting edges of the two steadies into the body N. Their
bevelled ends S form a jaw to receive and support the body being turned so as to
enable a heavy cut to be taken; S are adjusting screws passed through a flange N
on the plate N and hearing upon the ends of the steadies as shown in Figure 6, to
enable them to be independently adjusted, a screw T which has a flanged head serving
to lock them after adjustment.
In the modification illustrated by Figures 9 and 10 the steadies are dispensed with
and bushes U to suit the size of the finished article are substituted therefor. These
bushes are fitted into a correspondingly formed socket X on the body N, in which
they are held by a set screw V. Both the socket and the bush extend sufficiently far
from the face of the plate N to come opposite the cutting part of the tool in order to
afford a support or backing for the work, the side of the bush and socket nearest the
point of the tool being cut away to allow the latter to have access to the work. In

page_text: this modification the holder O is adjusted by means of a square headed screw Q¹
rotatable in a bridge O on the holder O and passing into the body N.
An advantageous feature of the hexagonal turret is the facility with which it lends
itself to the employment of tools performing simultaneously two or more operations.
Figures 11 and 12 show by way of example a drill or cutter W held in a bush W
fitted into a holder in the tool carrier N and turret (', whilst a turning, boring or
recessing tool W carried also by the tool carrier N operates upon the work X
simultaneously with the operation of the cutter W.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be perform d, I declare that what I
claim is
1. In a machine of the kind described the combination with a polygonal turret of
a tool holder such as N, comprising a cutter slide such as O capable of adjustment,
whilst the cutter is in operation.
2. In a machine of the kind described the combination with a polygonal turret of a
tool holder such as N comprising a cutter slide such as O capable of adjustment
whilst the cutter is in operation and sliding or fixed stea lies, substantially as
described.
3. In a machine tool of the kind described a polygonal turret or capstan horedi
through from side to side for the passage of work and having its central clamping pin
below these passage-ways, said pin being provided with an adjustable clamping
handle.
4. In a machine tool of the kind described the combination with a slide and
turret or capstan of pawls and plungers controlled by the under face of the turret
or capstan substantially as and for the purpose described and illustrated in the accom-
panying drawings.
5. In a machine tool of the kind described a stop gear comprising the combination
of a rising and falling plate such as H carrying part of the feed gear, a pivotted pawl
rod D adapted to engage with the plate H with or without a spring or weight sub-
stantially as and for the purpose specified.
6. A stop gear of the kind hereinbefore referred to so constructed as to permit
after automatic stoppage a small movement and an ultimate dead stoppage of the
capstan or turret for the purpose described.
7. In a stop gear of the kind herein before described the combination of a rising
and falling plate such as H carrying part of the feed gear, pivotted rod D, hand
shaft M and appurtenances so arranged that the movement of M in one direction
causes D to disengage the feed gear, whilst its movement in the other direction restores
the feed gear to the operative position substantially as specified.
8. In a machine tool of the kind described a manual and automatic stop gear con-
structed arranged and operating substantially as and for the purpose hereinbefore
described and illustrated in Figures 3, 4 and 5 of the accompanying drawings.
9. In a machine tool of the kind described the combination and arrangement of
parts constituting the complete tool holder or tool and "steady" holder substantially
as and for the purpose described and illustrated in Figures 6, 7 and 8 or Figures 9
and 10 of the accompanying drawings.
Dated this 16th day of February 1897
BOULT & WADE,
Agents for the Applicant.