Improvements in Machines for Drilling, Boring, and Milling Metals
Year: 1888

page_text: Improvements in Machines for Drilling, Boring, and Milling Metals
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
-
According to this invention the spindle is furnished near its socket end which
curries the drilling or milling tool or boring bar with an adjustable non-rotating
sliding sleeve having two bearings in which the spindle rotates, and is locked end wise
upon the spindle by means of lock nuts or other equivalent device The sliding sleeve
is moved end wise in a long guide preferably by rack and pinion mechanism, and
carries the spindle along with it either towards or away from the work, the effect of
the arrangement being to impart great stendiness to the action of the spindle even
when in its most protruded position The other end of the spindle is carried by the
elongated boss of a bevel wheel in which it is moveable end wise, and which rotates
the spindle through a feather key The bevel wheel is stationary end wise and is driven
by a clutch bevel wheel mounted on a cross shaft which may if required, traverse the
axis of the spindle By means of a conveniently actuated clutch, which can be put in
or out of gear with the clutch bevel wheel the rotation of the spindle can be started or
stopped at will
The spindle and sleeve may have a balance weight applied to them
for the purpose of withdrawing them from the work and of taking up end play The
feed traverse of the spindle is effected through the rack and pinion mechanism which
operates the sliding sleeve either automatically or by hand Sometimes a spindle
arranged and driven as described above may be mounted in a fixed head or standard or
bracket, and sometimes a machine may be constructed with one or more of such
spindles mounted on respective carriages moveable along a cross slide, the clutch bevel
wheels which gear into and drive those on the spindles being carried on a single shaft,
along which they are moveable endwise together with their respective clutches
cross slide is provided with a screw gearing into respective nuts in the carriages and
the screw and the nuts may be rotated alternatively at will When the screw is
rotated the carriages are all traversed simultaneously along the cross slide, and when
one of the nuts is rotated the corresponding carriage is traversed along the cross slide
independently of the other carriage or carriages The spindles can thus be spaced at
The

page_text: such distances apart along the cross slide as may be required
In
When a
Sometimes each
carriage may not only be fitted with a spindle as described, but may also be provided with
one or more shades, each carrying a spindle mounted and driven as already described
These slides are adjustible in guides along the carriage so that the spindles can be
spaced at any required distance apart Sometimes there may be two carriages on the
cross slide moveable along the cross slide by two respective traversing screws, actuated
through sets of toothed wheels by means of which each screw may be rotated in either
direction while the other remains stationary, and both screws may be rotated simul-
taneously either towards or apart from each other or both in the same direction
this case it is unnecessary for the nuts in the carriages to be made rotatory
machine constructed in accordance with this invention is required for such purposes
as drilling lines of holes in Boiler work, the traversing screw or screws may be
operated by a handle combined with a catch plate for determining the completion of
in integril number of turns of the screw or screws, separate mechanism being
provided for rotating the catch plate itself so as to impart fractional rotations to the
screw or screws when the pitch of the holes to be drilled renders this necessary
cross shaft may be driven either through single or compound gear or through a belt
pulley keyed upon it The cross slide may be formed either as an arm or as a berm
and may be either fixed or moveable, and the work may be carried upon a sliding
table traversed by a screw rotated by a handle and catch plate mechanism such as has
been already described Sometimes the work may be carried upon a rotatory
table mounted on a bracket moveable along a slide which can be rotated in suitable
bearings and fixed in any required position about an axis parallel to the surface of
the slide Sometimes the driving gear of the machine may embrace two or more pairs
of toothed wheels (of different powers) carried upon two parallel shafts, and arranged
in such a manner that any pair (and only one pur at a time) can be put in gear according
to the power required
The

page_text: COMPLETE SPECIFICATION
Improvements in Machines for Drilling, Boring, and Milling Metals
I WILLIAM WILSON HULSF of the Ordsal Works Salford in the County of Lancaster
Engineer do hereby declare the nature of this invention ind in what manner the summe
is to be performed, to be particularly described and ascertained in and by the following
statement and accompanying drawings
-
Some-
In a machine constructed according to this Invention the spindle is furnished near
its socket end which carries the drilling or milling tool or boring bar with an adjust-
able nonrotting sliding skeve having bearings in which the spindle rotates and 15
locked endwise upon the spindle by means of lock nuts or other equivalent device
The sliding sleeve is moved end wise in a long guide preferably by rack and pinion
mechanism and carries the spindle along with it either towards or w ty hom the work
the effect of the rangement being to impart great steadiness to the action of the
spindle oven when in its most protruding position The other end of the spindle 19
carried by the elongated boss of bevel wheel in which it is mov ible endwise and
which rotates the spindle through feather key The bevel wheel is stationary end wise
and is driven by a clutch bevel wheel mounted on a cross shaft which may if required
traverse the axis of the spindle By means of the clutch which can conveniently be
put in or out of gear with the clutch bevel wheel the rotation of the spindle can be
started or stopped at will The spindle and sleeve may have a balance weight applied
to them for the purpose of withdrawing them from the work and of taking up end
play The feed triverse of the spindle is effected through the rack and pinion
imechanism which operates the sliding sleeve either automatically or by hand
times spindle arranged and driven as described above may be mounted in i fixed
hed or standard or bracket and sometimes a machine may be constructed with one or
more of such spindles mounted on respective carriages moveable along a cross slide,
the clutch hevel wheels which gear into and drive those on the spindles being carried
on a single shaft along which they are moveable end wise together with their respective
clutches The cross slide is provided with a screw gearing into respective nuts in the
When the
Carnages and the screw and the nuts may be rotated alternatively it will
screw is rotated the caringes are all traversed simultaneously along the cross slide and
when one of the nuts is rotated the corresponding carriage is traversed along the cross
slide independently of the other carriage or carriages The spindles can thus be spaced
at such distances apart along the cross shde as may be required Sometimes eich
carriage ny not only be fitted with spindle as described but may also be provided
with one or more slides, each carrying a spindle mounted and driven as alre idy
described The slides are adjustible in guides along the carriage so that the spindles
can be spaced at any required distance apart Sometimes there may be two carriages
on the cross slide moveable along it by two respective traversing screws, actuited
through sets of toothed wheels by means of which each screw may be rotated in either
direction while the other remains station try and both screws may be rotated simul-
taneously either in the same or in opposite directions In this case it is unnecessary for

page_text: the nuts in the carriages to be made rotatory When a machine constructed in
accordance with this invention is required for such purposes is drilling lines of holes
in boiler work the traversing screw or screws may be operated by a handle combined
with a catch plate for determining the completion of an integral number of turns of the
screw or screws, separate mechanism being provided for rotating the catch plate itself
so as to impart fractional rotations to the screw or screws when the pitch of the holes
to be drilled renders this necessary The cross shaft may be driven either through
single or compound gear or through a belt pulley keyed upon it The cross slide may
be formed either as an arm or as a beam and may be either fixed or moveable and the
work may be carried upon a sliding table traversed by a screw rotated by a handle
and catch plate mechanism such as has been already described Sometimes the work
may be carried upon a rotatory table mounted upon a bricket moveable along a slide
which can be rotated and adjusted in suitable bearings and fixed in any required
position about an axis parallel to the surface of the slide Sometimes the driving gear
of the machine may embrace two or more purs of toothed wheels (of different powers)
carried upon two parallel shafts and arranged in such manner that any pair (and
only one pair at a time) can be put in gear iccording to the power icquired
1
The
In the accompanying drawings Fig "A is a front elevation, Fig B in en 1 clevation
and Fig C plin of a machine constructed in accordance with these improvements
In this case four similar spindle carriges 1, 1, 1, 1 are mounted upon cross
slide 2 long which they are moveable in guidos as shown The cross slide is
formed as a fixed arm and is bolted to a wall plate 3 4, 4, 4, 4 are the spindles,
which work in bearings in adjustable sliding nonrotating sleeves 5, 5, 5, 5
spindles are furnished with lock nuts 6, 6, 6, 6 which bear against the upper ends
of the sleeves 5 ind the lower ends of the sleeves bear against washers resting on
shoulders formed by the socket ends of the spindles The sleeves are moveable up
and down in sochet guides in the carriages by means of racks formed on the sleeves
and of pinions 7, 7, 7, 7 carried on a shatt 8, and they ne prevented from rotating
with the spindles by means of keys which enter into key ways in the sleeves as
indicated in Fig D, and they can be locked at any part of their traverse by
screws 8, (Fig D) which tighten the keys in the keyways The upper ends of
the spindles are carried and are moveable endwise in long bosses 9, 9, 9, 9 of the
bevel wheels 10, 10, 10, 10 These bevel wheels rotate the spindles through feather
keys and are themselves driven through clutch bevel wheels and clutches as shewn on
the cross shaft 11, whose axis intersects the axes of the spindles, and along which
they are moveable on a feather key Each clutch is operated through a respective
lever 12, shaft 13 ind clutch fork 14, shown clearly in Fig B Thus the rotation of
each spindle can be started or stopped at will independently The sleeves have
respective balance weights applied to them as shewn more clearly in Figs D, E
and F which are respectively a front elevation, end elevation and plan on an enlarged
serl, of one of the spindle carriages and of part of the cross slide 2 and of the
mechanism carried thereby By reference to these Figs, it will be seen that the feed
traveise of the spindle is effected automatically through worm 15 on shaft 11, worin
wheel 16, shafts 17, 18, connected by ba vel wheels as shown, ratchet 19, pawl 20, hand
wheel 21, worm 22 secured to 21, worm wheel 23, shaft 8, disc 24, (moveable along 8
on a fenthe key) and hand wheel 25 clamped to 24 is shewn and having a long
bo-s to which is secured the rack pinion 7 When the pawl 20 is out of gear the
hand wheel 21 and worm 22 ue free to tuin on the shift 10 and the feed traverse of
the spindles can then be effected by hand When the hin wheel 25 15 unclimped
from the disc 24, it and the pinion 7 are free to turn on the shaft 8, and the spindle
can then be triversed up and down by the hand wheel independently of the other
spindles, each of which can also be triversed independently in a similar minner
26 19 a traversing screw carried by the cross slide 2 for traversing the
carriages 1, 1, 1, 1 along the slide, 27 (Figs D, F) is a rotatory nut in gear with this
screw and mounted in the carriage 1 This nut is secured to a worm wheel 28 which
can be rotated by hand through a worm 29 and short shaft 30, and the traversing
screw 26 can be rotated by the handle 31 When the traversing screw is rotated

page_text: the nut is not rotated and vice ver så each of the four carriages (Fig A) are similarly
fitted, so that when the traversing screw 26 is rotated all the carriages are traversed
simultaneously along the cross slide, and when one of the nuts is rotated, only the
carriage corresponding therewith is traversed along the slide The spindles can thus
32 181
be spaced at such distances apart as may be required from time to time
catch plate in connection with the handle 31, it has only one notch and is for med
as a worm wheel to enable it to be rotated through a worm 33, shaft 34 and
hindle 35, connected with which is another catch plate 36 also having only one
notch In performung dividing operations as when drilling holes in boiler plates,
the catch plate 32 serves for determining the position of rest for the handle 31 when
an integral number of turns of the traversing screw 26 are required When
fractions of turns are involved in the dividing operations, these are obtained by
giving (it each such dividing operation) as many integral turns to the handle 35 as
will communicate the required tractional turns to the catch plate 32 while the
handle 31 is engaged with it, the complete revolutions which may be required being
produced by the handle 31 as already described The driving apparatus of the
machine is clearly shown in the drawings The machine described may be converted
into a multiple radial drilling machine by pivotting the arm 2 in accordance with
well known methods
Figs G and H are respectively front and end elevations of a carriage carrying
two spindles, adjustable towards or apart, from each other and moveable along a cross
slide as already described In these Figs, 2 is the cross slide, 37 the carriage,
38 a slide moveable along horizontal guides on the carriage and 26 the traversing
screw for traversing the carriage along the cross slide 39 is a screw for traversing
the slide 38 along the carriage 37 by means of a fixed nut secured in the slide
4, 4 are the spindles mounted in the carriage 37 and slide 38 respectively
The
driving and feed traverse mechanism are similar to that already described with
reference to the drawings Carrinages constructed in this manner may be substituted
in the machine shown in Figs A B (for those having only one spindle each
Fig J is a front elevation and Figs K, L, M are detached views of a machine in
which two spindle carriages each having one spindle are employed on one cross slide,
each carriage being traversed along the cross slide by an independent screw the nuts
in the carriages being nonrotatory 40, 40' are the two carriages, 2 the cross slide
carried by two uprights as shown, 11 the cross shaft for driving the spindles,
41, 41 the two traversing screws corresponding respectively with the car-
riages 40, 40¹ Sometimes two carnages as shown in Figs G, H, (but with non-
rotating nuts for the traversing screws) may be substituted for those shown in
Fig J
Figs K, L show the mechanism by means of which the traversing screws are
rotated 42 is a handle in connection with which is a double catch plate arrangement
as already described The handle operates two spur wheels 43, 431 keyed upon the
same shaft with it 44 is a sliding spur wheel carried on a feather key on the end
of the screw 41 and 45 is a wide intermediate spur wheel always in gear
with 43
In Fig K, 44 is shown in gear with 43', and thus the screw 41 will rotate in the
opposite direction to the handle 31 For rotating the screw in the same direction as
the handle the wheel 44 is moved into gear with 45, and when it is required to
operate the handle without rotating the screw, the wheel 44 is moved to an inter-
mediate position so as to be out of gear with both 431 and 45 By means of
wheels 44, 45' corresponding to 44, 45 the movements of the screw 41' can be
controlled similarly to those of the screw 41, so that each of the carriages 40, 40¹
can be traversed in either direction or be left stationary quite independently of the
other The work is secured upon a table 46 which can be traversed longitudinally
along a bed 47 by means of a handle 48, shaft 49, worm 50, combined worm wheel
and nut 51, and screw 52 A double catch plate arrangement (see Figs J, M) as
already described is provided in connection with the handle 48 for performing
dividing operations with the table The feed traverse mechanism is similar to that

page_text: already described with reference to the drawings-Fig N, shows the prosent
improvements as applied to a drilling, milling and boring machine with a fixed head
supported on an upright pillir, and parts corresponding to those already described
with reference to the drawings are designated by the same numbers In this machine the
worm 15 for actuating the feed traverse mechanism is rotated through cone pulleys
from the driving geir as shown, the shaft 17 rotates the shaft 8 through worm 22
and worm-wheel 23 without the intervention of a shaft 18, and the disc 24 and
hand wheel 25 are not required The work is secured upon a rotatory table 58 carried
by a bracket 54 which can be traversed up and down along guides on a slide 55 by
rack and pinion mechanism as shown The slide 55 forms a sleeve which encircles
the pillar 56 of the machine and can be rotated upon it To enable the sleeve to be
placed in position the pillar 56 and the base plate of the machine are mide in
separate parts put together as indicated in the drawing Sometimes however the
pillar, and the base plate may be made in one piece and the sleeve in two halves
which can be bolted together on the pill ir the table 53 and shde 55 can be locked
in any required position about their axes by the nut 57 and set screw 58 respectively
Sometimes a compound slide table may be used instead of a rotary one
In the driving
gear of the machine there are two pairs of spur wheels 59, 59' and 60, 60¹ of
different powers
59 and 60 are keyed fast on the driving shaft and 59¹, 60¹ ire
secured together and slide on a feather key along the intermediate shaft which
carries them for the purpose of putting one or other of the two pans of spur wheels
in gear or of putting both purs out of gear By the arrangment shown three
different driving powers are available
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 The general arrangement of machine for Drilling, Boring and Milling with
two or more Spindles substantially as shown in Figures A B C D E F G H and
described
2 The general arrangement of a Machine for Drilling, Boring and Milling with
two Spindles substantially as shown in Figs J K L M G H, and described
3 The arrangement of a slide 55 formed as a slec ve_which encircles the pillar
of an upright Drilling Machine substantially as shown in Fig N and described, and
for the purpose specified
4 The general arrangement of an upright Machine for Drilling, Boring and
Milling substantially as shown in Fig N and described