Improvements in Tools or Machines for Facing, Turning, Boring, Chasing, and otherwise Cutting Flanges on Castings, and for Operating upon other articles.
Year: 1891

page_text: Date of Application, 25th Nov., 1891
Complete Specification Left, 20th Aug., 1892-Accepted, 8th Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Tools or Machines for Facing, Turning, Boring,
Chasing, and otherwise Cutting Flanges on Castings, and for
Operating upon other articles.
.
We, WILLIAM ALFRED PEARN and FRANK PEARN of Gorton, Manchester, in
the County of Lancaster, Engineers, do hereby declare the nature of the said inven-
tion to be as follows:-
Our improved tool or machine will operate upon the flanges of pipes, but is more
particularly designed for operating upon flanges upon irregular castings, but may be
used for operating on other articles and for boring and other purposes.
It is in some respects similar to an ordinary boring machine.
Our invention consists in improved combinations and arrangements of mechanism.
There is a bed on suitable feet, and it has slideways formed upon it for a carriage
that can slide longitudinally along the bed, and this carriage has upon it slideways
for a cross slide or carriage upon which the work to be operated upon is or may be
secured.
These slides are or may be operated by screws or other mechanism by hand or
by selfacting mechanism geared up with the headstock mechanism.
The headstock is at one end of the bed and has bearings for a spindle similar to
that of a lathe spindle, and the headstock is arranged to move up and down on
vertical slides formed on projections upwards from the bed, and be adjusted thereon
by screws or other means.
The headstock spindle driving mechanism is geared by bevel wheels with a
vertical shaft in suitable bearings by a key groove and sliding key, which vertical
shaft is driven by gearing from a speed pulley and gearing on a horizontal shaft in
bearings at the end of the bed.
There is a face plate screwed upon the end of the headstock spindle in which
there is a radial cross slideway for a slide to which the cutting tool is secured.
This cutter slide is actuated by a screw in bearings on the face plate which is
geared by bevel wheels with a shaft in bearings in the hollow headstock spindle
which shaft is geared up to be actuated by a hand wheel, and also so as to be
actuated by change wheels automatically from the headstock gearing.
In some cases there is or may be a headstock such as that described at one or
both ends of the bed, the vertical slideway for one or both headstocks being
arranged on a carriage to move on slides in the lengthway of the bed, such head-
stocks having separate driving speed pulleys which are geared up with the vertical
shafts driving the headstock spindles from horizontal shafts having bearings in the
lengthway of the bed and wheels to slide on the horizontal shaft and be connected
thereto by means of a key and key groove.
Dated this 24th day of November 1891.
PETER J. LIVSEY,
Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Tools or Machines for Facing, Turning, Boring,
"Chasing, and otherwise Cutting Flanges on Castings, and for
Operating upon other articles.
We, WILLIAM ALFRED PEARN and FRANK PEARN of Gorton, Manchester, in
the County of Lancaster, Engineers, 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:-
Our improved tool or machine will operate upon the flanges of pipes, but is more
particularly designed for operating upon flanges upon irregular castings, but may
be used for operating on other articles and for boring and other purposes.
It is in some respects similar to an ordinary boring machine.
Our invention consists in improved combinations and arrangements of mechanism.
There is a bed on suitable feet, and it has slideways formed upon it for a carriage
that can slide longitudinally along the bed, and this carriage has upon it slideways
be
for a cross slide or carriage upon which the work to be operated upon is or may
:secured.
These slides are or may be operated by screws or other mechanism by hand or by
selfacting mechanism geared up with the headstock mechanism.
The headstock is at one end of the bed and has bearings for a spindle similar to
that of a lathe spindle, and the headstock is arranged to move up and down on
vertical slides formed on projections upwards from the bed, and be adjusted thereon
by screws or other means.
The headstock spindle driving mechanism is geared by bevel wheels with a
vertical shaft in suitable bearings by a key groove and sliding key which vertical
shaft is driven by gearing from a speed pulley and gearing on a horizontal shaft in
bearings at the end of the bed.
There is a face plate screwed upon the end of the headstock spindle in which
there is a radial cross slideway for a slide to which the cutting tool is secured.
This cutter slide is actuated by a screw in bearings on the face plate which is
geared by bevel wheels with a shaft in bearings in the hollow headstock spindle
which shaft is geared up to be actuated by a hand wheel, and also so as to be
actuated by change wheels automatically from the headstock gearing.
Fig. 1 is a front elevation, the lathe spindle and some of its connected parts being
shown in section.
Fig. 2 is an elevation at the driving end.
Fig. 3 is a front view of the face plate and slide and connected parts for the
cutter.
Fig. 4 is a section through the end of the lathe spindle, the face plate and slide
for the cutter and connected parts.
u, is the bed supported on feet or stands a'.
Upon the upper face of the bed a, at one end an upright bracket or stand a², is
secured by bolts or otherwise.
The front vertical face of this stand (a2) has slideways formed upon it, to fit a
slide carriage b, which is connected by a screw nut or part attached to the slide,
with a screw shaft b', having its bearings in the stand a². This screw can rotate
but cannot move endways in its bearings.
It has a hand wheel 63, secured to its upper end by which it is rotated to adjust
the position of the slide b, vertically.
From the slide carriage b, there are parts bushed with brass or other suitable
metal to form the bearings of the tubular lathe spindle c.
The exterior of one end of the spindle c, is coned to fit its bearing, and the other
end is cylindrical to fit the bearing at that end.
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page_text: The boss of a spur wheel c', on the spindle, is secured by a key, and screw lock
nuts c, upon the spindle, act on one side of the boss of this wheel to make it work
close against the end of the bush c³, for the spindle, the shoulder at the outer large
end of the spindle being at the same time drawn against the other end of the bush c³,
and thus end play in the lathe spindle c, is prevented.
There is a shaft d, which has its bearing in the hole in the tubular lathe spindle
hereinafter further referred to.
Upon the front end of the lathe spindle a face plate e, is screwed and across it
there is a screw shaft e¹, arranged to rotate in bearings in it, but so as not to move
endways, that is to say, one end of the shaft e', has a head which is sunk in a hole
in the edge of the face plate into which a screw plug e², is screwed.
The screw e', screws through a nut e, screwed or secured in a slide e, that can
slide in slideways formed across the face plate e.
This slide e, has a hole in it at the required angle for the cutter e, which passes
through this hole and through one in a bolt e, that fits a hole in the slide e¹, the
axis of which hole being parallel to the axis of the screw shaft e¹.
Upon the screw shaft el, a bevel wheel e, is secured which gears with one d¹,
secured upon the face plate end of the shaft d.
The other end of this shaft d, has a spur d², and bevel d³, wheel secured upon it,
and the bevel wheel d³, gears with one, on the end of a short shaft d³, in bearings
in a part projecting from the slide carriage b.
The outer end of this short shaft d, has a hand wheel d*, secured upon it by
which it can be rotated and thus the cutter e, in the slide e, on the face plate, can
be brought and adjusted to any required position to and from the axis of the lathe
spindle c.
Upon the lathe spindle c, two spur wheels are secured, one do, is of small, the
other d, of larger diameter, and these wheels gear respectively with a large spur
wheel, and small spur wheel 2, both free to rotate upon one end of a short
tubular shaft, having its bearings in a projection from the slide b; the other end
of the tubular shaft f, has also a spur wheel ³, loose upon it which gears with the
spur wheel d, on the end of the shaft d.
The spur wheel, is dished on its outer face for a friction washer on a disc f
fast upon the tubular shaft f, and the disc, is drawn against the wheel f³, and the
wheels and are drawn against each other, and the ends of the bearing for the
shaft by a screw nut f, on the shaft f.
It will be seen that as the wheels ", and fƒ, are loose on the shaft, they do
not act to drive that shaft, and it may rotate in the bosses of the wheels, and f³,
when driven by the wheel d², but if either of the wheels f, and f*, (say ') is made
fast to the shaft, the other wheel, will be free to rotate on the shaft, (and
vice versa if the wheel, was made fast to the shaft /) but the shaft f, will be
rotated so as to drive the spur wheel d², and consequently the shafts d, and e¹.
If one wheel (f) is made fast the speed is slow, if the other wheel (2) is made
fast the speed is quicker.
The wheel, may be arranged to be driven constantly from the lathe spindle c,
and the motion may be transmitted through change wheels, between the wheels ƒ³,
and 2, those wheels in that case not gearing directly.
The bosses of the two wheels 1, and 2, are hollow and clutch teeth or projections
are formed upon the inner end of the hole in each boss to gear with a double clutch
ring, or projection that is connected by a pin (or the projection may be a pin)
passing through a slot in the tubular shaft f, into a shaft or rod, sliding in the
interior of the tubular shaft f, the outer end of which shaft fo, is connected with a
clutch fork lever f, having its fulcrum on a bracket attached to the slide b.
By means of the clutch fork lever 7, either wheel ", or f, can be made fast to
the tubular shaft f, and thus the cutter e, may be selfacted at either of two
speeds.
g, is a slide carriage fitted to move on slideways formed in the lengthway and
upper face of the bed a, and upon this slide carriage another slide carriage g', is

page_text: fitted to slide in a direction across the lathe bed in slide-ways formed upon the first
named slide carriage g.
This cross slide g', is adjusted by a screw shaft g³, arranged to rotate in bearings
in the slide carriage y, but not to move endways therein, this screw shaft y³, screwing
through a screw nut attached to the cross slide g'.
This screw shaft g, is rotated by a handle fitting upon squares on the front end
of the screw shaft in an ordinary manner.
The slide g, that moves along the bed is actuated by a screw shaft h, which
rotates in the lengthway of the bed a, in suitable bearings, but cannot move
endways, and this screw shaft screws through a nut secured to the carriage g.
At one end of the bed a, there are projections formed or attached for the shaft i,
and speed pulleys i', and shaft 2, for the slow motion gearing, arranged similar to
that of ordinary double geared lathes. The shaft i, (corresponding to that of an
ordinary lathe spindle) has a bevel wheel 3, upon it that gears with one j', secured
upon the lower end of a vertical shaft j, having one at its lower end in a bracket a³,
secured by bolts or screws to the side of the stand a².
The shaft j, is arranged in this bracket a³, so as to rotate, but not to move
end ways.
The upper end of the shaft j, can slide freely through a hole in the boss of a bevel
wheel, which boss has its bearings arranged so as to rotate but not move end ways
in a bracket 3, projecting from or secured to the vertical slide carriage b.
The vertical shaft, j, and bevel wheel jx, are connected by a key and key
groove.
The bevel wheel jx, gears with one 2, upon the end of a horizontal shaft j³,
rotating in bearings carried upon the slide b.
Secured upon the shaft j³, there is a spur pinion j, that gears with the spur
wheel c', on the lathe spindle c, which thus receives rotary motion.
There is a short shaft, having its bearings in the bed and
1,
upon the outer
end of this short shaft there is a hand wheel, and upon the inner end of this short
shaft, a worm is secured that gears with a worm wheel ³, secured on the screw
shaft h.
By this means the carriage g¹, can be moved and adjusted by hand.
The shaft i, passes through a bearing in a bracket at, on the bed a, and проп the
projecting end of the shaft a spur wheel, is placed to slide to and fro on the
shaft i, being driven by a key fitting a groove in the boss of the wheel.
When the wheel ', is in the position shown in Fig. 2, it is in gear with a spur
wheel secured on the outer end of a short shaft ho, having its bearing in the bracket a²,
and the inner end of this short shaft has a worm ho,
secured upon it that gears with
a worm wheel h', loose on the end of the shaft h.
One side of the boss of the worm wheel, has clutch teeth formed upon it that
will gear with a corresponding half clutch that can slide on a fixed key on the end
of the shaft h.
This part of the clutch box is actuated by a clutch fork hand lever ³, having its
fulcrum on the bracket a².
By this means the carriage g, may have self-acting movement given to it when
required.
By means of change wheels (not shown) between the wheel /*, and the wheel on
the short shaft, the direction of rotation of the shaft h, may be reversed or
changed in speed in relation to the speed of the lathe spindle c.
The articles to be operated upon are secured to the carriage (g) or to a cradle
secured to the carriage (g) which can be adjusted in the lengthway and across the
bed and to and from the cutter (e) on the face, plate, which cutter can be adjusted
to the required position vertically by the screw ¿¹.
The cutter e, can be automatically made to traverse over the face of say a flange,
while the slide (g, ') remains stationary or the cutter may remain stationary (except
as to rotation with the face plate) and the slide (g, g) may be moved to and from
the cutter as when say cutting the edge of a flange.

page_text: The lathe or tool may if desired be made to form cone work by giving the
required movement to the cutter e³, and to the carriage g.
93, is a slide block on the bed a, which at times is used to assist in supporting the
article being operated upon.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is.
1. The combination of a lathe spindle and face plate having a slide (e*) across
its face, connected with a screw shaft (e) geared with a shaft (d) in the tubular
axis of the lathe spindle, by which the slide (e) for the cutter can be adjusted or
selfacted substantially as and for the purpose hereinbefore described.
2. The combination of a lathe bed (a) with a carriage (g, g¹) upon it, a lathe
headstock adjustable and movable on a vertical slide, carrying a lathe spindle and
face plate having a slide for the cutter, substantially as and for the purpose herein-
before described and illustrated by the drawings.
3. The combination and arrangement of a lathe bed (a) slide carriages (g, g)
lathe headstock carrying a lathe spindle having a face plate with a cutter slide in
it, said lathe headstock being adjustable and movable on a vertical slide and the
parts being actuated substantially as herein before described and illustrated by the
drawings.
4. The combination and arrangement of the parts forming a lathe or tool substan-
tially as and for the purposes herein before described and illustrated by the
drawings.
Dated this Eighteenth day of August 1892
PETER J. LIVSEY,
Agent.