Improvements in Screwing, Boring, Facing, and Cutting Off Machines, suitable for Use in the Manufacture of Parts of Water Tube Boilers and similar work.
Year: 1896

page_text: Date of Application, 15th Apr., 1896
Complete Specification Left, 15th Jan., 1897-Accepted, 3rd Apr., 1897
PROVISIONAL SPECIFICATION.
Improvements in Screwing, Boring, Facing, and Cutting Off Machines,
suitable for Use in the Manufacture of Parts of Water Tube
Boilers and similar work.
I, WILLIAM WILSON HULSE, of the Ordsal Works, Salford, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention has reference to the construction and arrangement of screwing,
boring, facing, and cutting off machines suitable for externally screwing, internally
screwing or tapping, boring, facing and cutting off to the required length various
parts of water tube boilers, such as tubes, junction boxes, sockets or nipples,
sleeves or running joints, checknuts or backnuts &c. or similar work.
In one construction of combined boring, facing and internal screwing or tapping
machine according to this invention there is fixed upon one end of the bed or stand
of the machine a headstock carrying two or more, spindles driven through gearing
adapted to impart to them the relative speeds required. The spindles are arranged
lengthwise of the bed of the machine with their axes parallel and in the same plane.
One of the spindles carries a cutter head for boring and facing and the other
spindle or spindles carries or carry chasers or taps for internal screwing or tapping.
The screwing spindles slide end wise and have guide screws to assist the screw tools
in their work and prevent drag on the thread.
Upon the bed of the machine is mounted a carriage with self-acting feed traverse
for boring and quick hand traverse. Suitable stops are provided for repetition
work. Upon the sliding carriage is a transverse slide, which can be quickly moved
into position opposite each spindle and fixed there, surmounting this slide is a holder
or carrier adapted to hold the work for example a "junction box." The holder or
carrier is fitted with compound swivelling adjustments for setting the work.
Between the bolder or carrier and the transverse slide may be placed spacing
pieces of different thicknesses to suit the several pitches of holes in junction
boxes.
In some cases two guide screws are fitted in or along the bed, one for self-acting
boring and the other for assisting the screw tools to prevent drag on the thread a
double nut being provided to engage, first with one guide screw and then with the
other. In such cases the screwing spindle or spindles having no traverse motion
imparted to them.
For dealing with sleeves or running joints checknuts or hacknuts &c. the
headstock has one or more spindles rotated through gearing adapted to impart
the various speeds required chuck or chucks are provided with two or more radial
concentric jaws movable towards or away from the axis of the spindle for gripping
or releasing the object being dealt with. Adjustably mounted upon the bed of the
machine is a compound slide rest provided with a capstan for carrying several
lifferent forms of tools for boring, facing, ringing, internally screwing, chamfering
and cutting off, &c. When screwing the longitudinal screw in the compound slide
est may be freed so as to enable the capstan, and with it the screw tool, to move
endwise in either direction according to whether the screw tool is being advanced
r withdrawn from its work. Or the screw may be of the same, or by change
wheels made equal to the same pitch as the screw thread to be produced and be
ontrolled by a disengageable nut to prevent drag on the thread.

page_text: For dealing with sockets or nipples, upon the bed of the machine is a headstock
similar to that for dealing with sleeves or running joints &c. but with spindle freely
movable endwise by rack and pinion. At the front of spindle is mounted an
apparatus or screwing head containing one or more radial tools or dies which may
be simultaneously advanced or withdrawn whether the spindle be revolving or at
On the face of the screwing head is provided an apparatus for cutting off.
Connected to the rear and outer end of the spindle is a guide screw, of the same or
geared to the same pitch as that required to be produced to prevent drag upon
the
thread. The work is held in position by means of a vice or vices having oppositely
arranged jaws which can be moved towards or away from each other by means of a
right and left hand screw.
Improvements in Screwing, Boring, Facing, and Cutting Off Machines,
suitable for Use in the Manufacture of Parts of Water Tube
Boilers and similar work.
I, WILLIAM WILSON HULSE, of the Ordsal Works, Salford, in the County
of Lancaster, 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 has reference to the construction and arrangement of screwing,
boring, facing, and cutting off machines suitable for externally screwing, internally
screwing or tapping, boring, facing and cutting off to the required length various
parts of water tube boilers, such as tubes, junction boxes, sockets or nipples sleeves
or running joints, checknuts or backnuts &c. or similar work.
In one construction of combined boring, facing and internal screwing or tapping
machine according to this invention there is fixed upon one end of the bed or stand
of the machine a headstock carrying two or more spindles driven through gearing
adapted to impart to them the relative speeds required. The spindles are arranged
lengthwise of the bed of the machine with their axes parallel and in the same plane.
One of the spindles carries a cutter head for boring and facing and the other
spindle or each other spindle carries a chaser or tap for internal screwing or
tapping. The screwing spindles slide endwise and have guide screws to assist the
screw tools in their work and prevent drag on the thread.
Upon the bed of the machine is mounted a carriage with self-acting feed traverse
for boring and quick hand traverse. Suitable stops are provided for repetition
work. Upon the sliding carriage is a transverse slide, which can be quickly moved
into position opposite each spindle and fixed there, surmounting this slide is a
holder or carrier adapted to hold the work for example a "junction box." The
holder or carrier is fitted with compound swivelling adjustments for setting the
work. Between the holder or carrier and the transverse slide may be placed
spacing pieces of different thicknesses to suit the several pitches of holes in
junction boxes.
In some cases two guide-screws are fitted in or along the bed, one for self-acting
boring and the other for assisting the screw tools to prevent drag on the thread, a
double nut being provided to engage, first with one guide screw and then with the
other. In such cases the screwing spindle or spindles have no traverse motion
imparted to them..

page_text: In the accompanying drawings
Figs. 1, 2 and 3 are respectively a front elevation, an elevation of the left hand
end, and a plan (with parts removed) of a combined boring, facing and internal
screwing or tapping machine in accordance with this invention.
Fig. 4 is a view of the right hand end of the carriage. Upon the bed or stand 1
of the machine is fixed a headstock 2 carrying three spindles 3, 4 and 5 arranged
parallel with each other and with their axes in a horizontal plane. The spindle 3
is provided with a cutter head 3a, and is driven from the cone pulley shaft 6.
through gear wheels 7, 7. The spindles 4 and 5 carry taps the former being
driven from the spindle 3 through gear wheels 8, 8 and the latter being driven
from the spindle 4 through gear wheels 9, 9" and 9. The screwing spindles 4
and 5 are formed with long key ways and are mounted to slide endwise in their
bearings in the headstock and through the wheels 8° 9 and 9b. The spindle 4 has
connected to it a guide screw 11 provided with a nut 11ª made in parts that are
capable of being engaged with or disengaged from the guide screw by
a hand
operated shaft 11b but are fixed end ways. When the nut is engaged with the
screw and the latter is rotated, the screw and spindle 4 will be fed endways and
prevent drag on the thread that is being cut. The spindle 5 is or may be provided
with a similar arrangement of guide screw and nut. The spindles 4 and 5 are
withdrawn, after the taps have finished their work, by means of two levers 10 that
engage with grooved collars x, x attached to the spindles, and are connected to
two spindles 10" which are arranged one within the other and provided with
handles 10 at their front ends. The lathe carriage 12 is provided with self acting
feed traverse comprising a pinion 13 gearing with a fixed rack 13" on the bed 1
and driven from the spindle 3 through gear wheels 13b 13, 134, shaft 13°, worm 13'
which is feathered to the shaft 13, worm wheel 138 shaft 13 and gear wheels 13'
and 13. The wheel 131 is mounted loosely on the shaft 13 to which the
wheel 13 is keyed and has connected to it a disc 13' that is adapted, as by a
thumb nut and bolt. 13, to be locked to or freed from another disc 13" fixed on
the shaft 13, according as it is desired to put the feed traverse in or out of
action. When freed, the carriage can be traversed quickly by hand by means
of a handle fitting onto the squared end of a spindle 14 to which is fixed a
pinion.14 in gear with a toothed wheel 14 connected to the wheel 13. 15 is
an adjustable stop carried by the boss 15° on the bed and against which the sliding
carriage 12 is brought when facing. 16 is the transverse slide by which the work
holder or carrier (not shown) is supported. The slide is moved into position by
means of a rack 16" on its underside and a pinion 17 fixed on a spindle 17"
mounted in bearings on the carriage 12 and actuated through bevel wheels 17,
one of which is fixed to the spindle 17ª and the other to a square ended spindle 17°
extending to the front of the machine. When the slide has been brought by
means of the rack and pinion into a position approximately opposite either of the
spindles 3, 4 or 5, it is fixed in place by a pin which passes through an adjustable
plate 18 and a slot in the slide 16 and drops into one of three holes 18 in the
carriage. The work is then accurately in line with the required spindle; 19 is a
screw fitted with a disengaging nut (not shown) for imparting a hand feed traverse
to the slide for facing, by means of a circular cutter, oval holes in the work, for
instance a junction box.
Figs. 5, 6, 7 and 8 are corresponding views to Figs. 1, 2, 3 and 4 respectively
showing a combined boring, facing and internal screwing or tapping machine
according to this invention, in which the headstock 2 carries in addition to the
boring and facing spindle 3, only one screwing spindle 4 the two spindles being
driven as in the arrangement first herein described. The spindle 4 has no endways
traverse motion imparted to it but the bed of the machine is fitted with two guide
screws 20, 20. A double nut 20° attached to the carriage is adapted to be brought
by means of a handle 20° into engagement with the screw 20 for self acting boring,
and, when screwing, into engagement with the screw 20" which assists the screwing
tool. The carriage can be quickly traversed by turning a handle applied to the

page_text: spindle 14 or slowly traversed by turning a handle applied to the spindle 14 and
thereby actuating through gear wheels, a pinion 13 in gear with the rack 13".
The screws 20 and 20ª are geared together by spur wheels 204, the screw 20* being
driven from the spindle 4 through gear wheels 20°, 20°, 20° and 20.
On the slide 16 of each construction of machine is mounted a work holder or
carrier 21 fitted with a compound swivelling arrangement for setting the work as
well understood. Between the work holder or carrier and slide, may be placed
spacing pieces 21 of different thicknesses, for the purpose herein before stated.
21 is a face plate to which the work to be operated upon is attached and which
can be turned through an angle of about 180°; 21 is a pin for holding it in
position. The traversing arrangements of the slide are like those previously
described; 19 is the disengaging nut fitted to the screw 19.
For dealing with sleeves or running joints, checknuts or backnuts, &c., the head-
stock has one or more spindles rotated through gearing adapted to impart the
various speeds required and a chuck or chucks is or are provided with two or more
radial concentric jaws movable towards or away from the axis of the spindle for
gripping or releasing the object being dealt with.
When
Adjustably mounted upon the bed of the machine is a compound slide rest
provided with a capstan for carrying several different forms of tools for boring,
facing, ringing, internally screwing, chamfering and cutting off &c.
screwing, the longitudinal screw in the compound slide rest may be freed so as to
enable the capstan, and with it the screw tool, to move end wise in either direction,
according to whether the screw tool is being advanced or withdrawn from its work.
Or the screw may be of the same, or by change wheels made equal to the same
pitch as the screw thread to be produced and be controlled by a disengageable nut
to prevent drag on the thread.
Figs. 9 and 10 are respectively front and left hand end elevations of a machine
according to this invention for dealing with sleeves or running joints, check nuts or
backnuts &c. The headstock 2 has a spindle 3 which is rotated through gear
wheels 7, 7 or the gear wheels 8, 8* 8 and 7", according to the position of the
lever 22 which engages with a grooved part 22" of a sleeve feathered to the pulley
shaft 6 and having the wheels 7 and 8 fixed thereon. 23 is the chuck with
adjustable jaws fixed on the spindle 3.
The compound slide rest 24, which is adjustable along the bed of the machine,
is surmounted by a capstan 25 carrying the several forms of tools required for the
work in hand. The longitudinal screw 24" of the slide rest can, for the purpose of
enabling the capstan to move end wise when screwing, be freed by slacking the set
screw 24 thereby allowing the sleeve 24° which is carried by the screw 24", to
slide through its bracket 24. 24 is a rack and 24' a pinion for quickly traversing
the turret slide longitudinally by hand, and also for starting the tap in to the work
when screwing internally.
Figs. 11 and 12 are corresponding views to Figs. 9 and 10 respectively showing
a similar machine to that shown in those figures but provided with gearing whereby
the longitudinal screw 24 of the slide rest 24 can be automatically driven, when
screwing. The gearing comprises a shaft, 26 which is driven through change-
wheels 25 from the spindle 3 and is geared to the screw 24" by suitably proportioned
gear wheels 26ª, 26, and 26°. The wheel 26 may be moved out of gear with 26"
and 26 when it is required to control the screw 24" by hand. When the transverse
slide 24 carrying the slide rest 24 is to be used the bracket 26d and wheels 26", 26° 26°
will require to be removed.
For dealing with sockets or nipples, upon the bed of the machine is a headstock
similar to that for dealing with sleeves or running joints &c. but with the spindle
freely movable end wise by rack and pinion. At the front of spindle is mounted an
apparatus or screwing head containing one or more radial tools or dies which may
be simultaneously advanced or withdrawn whether the spindle be revolving or at rest.
On the face of the screwing head is provided an apparatus for cutting off.
Connected to the rear and outer end of the spindle is a guide screw, of the same

page_text: or geared to the same pitch as that required to be produced to prevent drag upon
the thread. The work is held in position by means of a vice or vices having
oppositely arranged jaws which can be moved towards or away from each other
by means of a right and left hand screw.
Figs. 13, 14 and 15 are respectively a front elevation, a left hand elevation and
a plan of a machine constructed according to this invention for dealing with
sockets or nipples. Figs. 16, 17 and 18 are detail views.
The headstock 2 and the gearing for driving the spindle 3 are similar to that
shown in Figs. 9 and 10 but the spindle can be moved end wise by a circular
rack 27 mounted to rotate with but held endways upon its rear portion and a
pinion 27 rotated by means of a handle 27b. The front of the spindle 3 is
provided with a screwing head or apparatus 28 of the kind described in the
Specification of former Letters Patent granted to me, No. 12966 dated 4 July 1895,
the said head or apparatus containing radial screwing tools or dies that can be
simultaneously advanced or withdrawn by means of a lever 28* (Figs. 13 and 17),
whether the spindle be revolving or at rest, as described in the said former
specification. The apparatus 28 is provided on its face with a sliding holder 29
(Fig. 16) for carrying a cutting off tool. The holder and tool are automatically
operated by a star wheel 30 which is fixed to a screw 30" for operating the holder
and is rotated at the required time by a longitudinally adjustable stop 31 as well
understood, 11 is a guide screw connected with the rear end of the spindle 3 and
with which a fixed nut at 11ª can be engaged when desired. The work is held by
a vice (see Figs. 13 and 18) bolted to the bed in the required position and having
oppositely arranged jaws 32 adapted to be moved towards and away from each
other by a right and left handed screw 33. Independent horizontal adjustment
of the jaws.32 in a lateral direction can be effected upon releasing the set screw 34,
which enables the bush 35 and with it the screw 33 and jaws 32 to be moved
end wise. Also to render each jaw 32 independently adjustable in a vertical plane,
it is arranged to swivel on a stud 36. The independent horizontal and vertical
adjustinents are provided for the purpose of enabling untrue tubes to be set as
centrally as possible. Thus, a tube could be held in position by the radial dies in
the screwing head 28 and the vice arranged to grip the tube while it is being held
in this central position.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I'declare that what I
claim is :-
1. Machines suitable for screwing, boring and like purposes, constructed arranged
and operating substantially as herein before described with reference respectively
to and shown in Figs. 1 to 4 inclusive and in Figs. 5 and 8 inclusive of the
accompanying drawings.
2. Machines suitable for screwing, boring and like purposes, constructed arranged
and operating substantially as hereinbetore described with reference respectively
to and shown in Figs. 9 and 10, and in Figs. 11 and 12 of the accompanying
drawings.
3. A machine suitable for screwing and cutting off, constructed arranged and
operating substantially as herein before described with reference to and shown in
Figs. 13 to 18 inclusive of the accompanying drawings.
D. 15th dow of Lanner 1897
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.