Improvements in Machinery for Drilling and Slotting Metal Plates.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Machinery for Drilling and Slotting Metal Plates.
I, WILLIAM WILSON HULSE, of Ordsal Works, Salford, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to machinery for drilling and slotting metal plates, such
as frame plates for locomotive engines, boiler and flue plates etc.
cross-
A machine for this purpose according to this invention comprises a bed made
in one or more parts and provided with grooves or slots by means of which the
work can be secured thereto, and one or more traversing heads comprising or
each comprising uprights arranged at opposite sides of the bed and a
slide. The traversing head or each such head, with cross slide and mechanism
carried thereby is moved along the bed by means of fixed screws arranged one
at each side of the bed and provided with rotating nuts.
Upon the cross slide or each such slide and arranged to traverse horizontally
to and fro thereon, is mounted a slide provided with a slotting headstock and a
drilling headstock, and with suitable mechanism whereby a reciprocating motion
can be imparted to the ram or slide of the slotting headstock and rotary motion
to the spindle of the drilling headstock from one or more shafts running along
the cross-slide.
The sliding ways of the bed for the traversing heads to move along are of
the inverted vee type and are provided with suitable adjusting strips for the
purpose of compensating for wear and for receiving the upward stress of the
cuts.
Suitable mechanism is provided for imparting, by hand or power, a vertical
traverse up or down to the drilling cutter, a transverse traverse along the
cross-slide of the drilling and slotting mechanism and a longitudinal movement
along the bed of the machine of the traversing head or heads, with its or their
mechanism, the two last mentioned feed traverses may be combined for angling
or diagonal cutting of work for example the outside of horn block carriers.
The slotting headstock, or each of such headstocks when there are more than
one, is provided with a tool holder for circular or straight work, such holder
being adapted to be operated at will either automatically or by hand through
suitable mechanism such as worm gearing.
The drilling and slotting motions on the traversing heads or each of such
heads, are obtained through suitable gearing from one or more longitudinal
driving shafts running lengthwise of the machine, and driven it may be by
belting or by an electric motor; or the traversing head or each such head, with
the drilling and slotting mechanism thereon may be driven by its own motor,
DQ77

page_text: means for varying the speed being provided. In this case the motor may be
an electric motor and be carried by the head so as to move therewith.
Dated this 11th day of February 1897.
3747
COMPLETE SPECIFICATION:
Improvements in Machinery for Drilling and Slotting Metal Plates.
We, JANE HULSE, of the Grove, Withington, Manchester, in the County of
Lancaster, JOSEPH WHITWORTH HULSE, of Ordsal Works, Salford, aforesaid, and
FRANK, SYKES, of Edgeley Fold, Stockport, in the County of Chester, Executors
of the last will and testament of WILLIAM WILSON HULSE, of 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 relates to machinery for drilling and slotting metal plates,
such as frame plates for locomotive engines, boiler and flue plates etc.
A machine for this purpose according to this invention is illustrated in the
accompanying drawings, in which
Fig. 1 is an end elevation;
Fig. 2 a part plan; and
Fig. 3 a side elevation viewed from the left-hand side of Fig. 1 with those
parts omitted which lie respectively to the left of the line a-a
the right of the line bb (Fig. 1).
1.
(Fig. 1) and to
Fig. 3 is a corresponding view to Fig. 3 showing only those parts of the
machine which lie to the left of the line c-c (Fig. 1).
Fig. 4 is a side elevation viewed from the right hand side of Fig. 1 and with
those parts which lie to the left of the line bb (Fig. 1) and those which are
more particularly illustrated in Fig. 4 omitted.
Fig. 4 is a corresponding view to Fig. 4 showing only those parts which lie
between the lines d-d and e-e (Fig. 1).
The machine comprises a bed 1 made in one or more parts and provide:
with grooves or slots 1" by means of which the work can be secured thereto, and
one or more traversing heads each comprising uprights 2 arranged at opposite
sides of the bed and a cross-slide 3. Each of the traversing head and mechanism
carried thereby is moved along the bed by means of fixed screws 4 arranged one
at each side of the bed and provided with rotating nuts 5 carried by brackets 5ª
attached to the lower portions of the uprights 2.
Upon each cross slide and arranged to traverse horizontally to and fro thereon
is mounted a slide 6 provided with a slotting headstock and a drilling headstock,
and with suitable mechanism hereinafter described whereby a reciprocating
motion can be imparted to the ram or slide 7 of the slotting headstock and
rotary motion to the spindle S of the drilling headstock from a shaft 9 running
along the cross slide.
The mechanism whereby rotary motion is imparted to the drilling spindle 8 from
the shaft 9 comprises a short shaft 10 and bevel wheels 11, 11, 11 and 11°;
the wheel 11 is fixed to a sleeve 11* which is connected by a feather and groove
connection with the shaft 9 and is so arranged that it can be slidden through its
supporting bracket 12 into and out of gear with the wheel 11 the spindle S
may thus be placed out of gear when slotting is being done. The wheel 11° is
1.

page_text: supported in a bracket bearing 11d and is connected by a feather and groove
with the spindle 8 which is thus free to. be moved up and down through the
sleeve with which,₁t.rotates. The mechanism for imparting reciprocating motion
with quick return to the ram 7 of the slotting headstock from the shaft 9. com-
prises a pinion, 13, which is carried by. a bracket extending from the slide 6 and
connected to the shaft 9 by a feather and groove connection, a spur wheel 13 that
gears with the pinion 13 and has fixed to its spindle a crank disc 14, the pin
of which takes into a slot in a lever 15 (Figs. 2 and 3) that is pivoted at 15* and is
linked to the ram 7 as shown.. The ram 7. is counterbalanced by a weighted
lever 7 connected to it.
J
The shaft 9 is, in the example shown, driven from a belt driven shaft 16
running lengthwise along the bed of the machine and having connected there-
with by a feather and groove the movable part 16* of a reversing clutch adapted
to connect the shaft 16 with one or other of a pair of bevel wheels 17, 17" that
are in gear with another bevel wheel 17* fixed to a short transverse shaft
carrying cone pulleys 18; these pulleys are in driving connection by means of
a belt with cone pulleys 18" which are keyed to the spindle of a pinion 19 that
gears with a spur wheel 19" fixed to the shaft 9. The shaft 16 may be driven
in any other convenient manner as by an electric motor; or the traversing
head, with the drilling and slotting mechanism thereon may be driven by its
own motor, means for varying the speed being provided. In this case the motor
may be an electric motor and be carried by the head so as to move therewith.
The sliding ways of the bed for the traversing heads to move along are formed
with inverted vees and are provided with suitable adjusting strips for the purpose
of compensating for wear and for receiving the upward stress of the cuts.
Suitable mechanism is provided for imparting, by hand or power, a vertical
traverse up or down to the drilling cutter, a transverse traverse along the cross-
slide of the drilling and slotting mechanism and a longitudinal movement along
the bed of the machine of the traversing head or heads, with its or their mechan-
ism; the two last mentioned feed traverses may be combined for angling or
diagonal cutting of work, for example, the outside of horn block carriers.
The spindle S is balanced by a weight 20 connected to it by a chain passing
over pulleys 20ª and vertical feed traverse is imparted to it through shaft 10
spur gear 21 worm and worm wheel gear 21 and 21, cross-shaft 23* which
passes through and is adapted to be connected with a hollow spindle 23 upon
which is mounted the rack pinion 22ª in gear with the rack 22 cut upon
the sleeve 23 in which the spindle 8 is mounted. The worm wheel 21ª is keyed
to the cross shaft 23* and the hand wheel 23 is mounted on the hollow spindle 23
and is connected to the shaft 23* by a ratchet wheel 23° keyed to the end of
cross-shaft 23* and a pawl 23d carried by the hand wheel 23. When it is
desired to adjust the spindle by hand, without stopping the machine, the pawl 23d
is thrown out of gear with the ratchet wheel 23 and the hand wheel 236
operated.
The ram or slide of the slotting headstock, is provided with a tool holder 24
for circular or straight work which can be operated at will either automatically
or by hand through suitable mechanism such as worm gearing. In the example,
the tool holder 24 is provided with a worm-wheel gearing with a worm 24 the
spindle of which has fixed to it a ratchet wheel 24 that is operated by a pawl
carried by a lever 24°; this lever is oscillated by means of a stop rod 24d having
adjustable stops 24° which come in contact with an abutment 24 at each up and
down movement of the ram or slide 7.
For traversing the head quickly in either direction along the bed of the
machine, the two rotating nuts 5 on the fixed screws 4 are driven from the
shaft 9 through bevel gears 25, vertical shafts 26, bevel gears 27, cross shaft 28,
spur wheels 29, 29ª, 29 and 29°, shaft 9, spur wheels 19 and 19, cone pulleys 18"
and 18, bevel wheel 17*, one or other of the bevel wheels 17, 17" and the clutch
part 16. To enable this clutch part to be moved inte engagement with either

page_text: of the wheels 17, 17%, or out of engagement with both, from the front side of the
machine, there is provided a cross shaft 30 fitted with a hand lever 30° adapted
to be locked in position by a handle or nut 30b, said shaft 30 being connected by
bevel gear 30° to a vertical shaft 30d that carries an arm 30°. The fork 30° for
shifting the clutch part 16* is carried by the lower end of a vertical spindle 30°
having at its upper end an arm 30h that is linked to the arm 30°. In order to
feed the head intermittently along the bed in either direction, the spur wheel 29b,
which is driven from the shaft 9 through the pinion 29°, is formed as a disc
with a diagonal tee-groove in which is fitted an adjustable crank pin that is
connected by a rod 31 to a bell crank lever 32, so that the latter is oscillated as
the wheel 29b is rotated. The bell crank is connected by levers 33, and 33ª
respectively with levers 34 and 34" which are loosely mounted on the outer
portion of a screw 35 and carry pawls 34* one or other of which according to
the desired direction of feed, can be caused to engage with a ratchet wheel 36
fixed upon a tubular boss 36ª, which is also loosely mounted on the end portion
of the screw 35 and which has keyed upon it one of a set of change wheels 37,
37, and 37, the last of which is fixed upon the cross-shaft 28. When this
feed traverse motion is to be used the wheel 29 is slidden out of gear with the
wheel 29, and, when the quick traverse motion is in use, the rod 31 is discon-
nected from the spur disc wheel 29. The cross shaft 28 has a squared outer
end to which a handle may be fitted for rotating it by hand to feed the head
along the bed. For traversing the slide 6 to and fro along the slide 3, the
screw 35 which is engaged by a nut fixed to the slide 6, is connected to the rotating
tubular boss 36" by means of clutch parts 38, 38. The screw 35 has a squared
end to which a handle may be fitted for rotating it by hand to feed the slide 6
along the cross slide. As will be understood, if the feed traverse of
the head along the bed and the feed traverse of the slide be in operation
simultaneously, feed of the cutting tool in a diagonal direction may be obtained,
and by the use of various change wheels the angle may be varied. The nut
carried by the slide and engaging with the screw 35 is formed as a worm wheel
which can be rotated by means of a worm operated by means of a hand
wheel 39; the slide 6 can thus be moved along the cross slide 3 by the
attendant without it being necessary for him to go to the end of cross slide to
rotate the screw 35.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed we declare that what
we claim is :-
A machine for drilling and slotting metal plates comprising a fixed bed, one
or more heads each adapted to be traversed along the bed by means of fixed
screws and rotating nuts and carrying a slide adapted to be traversed across
its head and provided with a drilling headstock and slotting headstock, and
means for imparting rotary motion and vertical traverse to the drilling spindle,
and reciprocating motion to the slotting ram or slide, constructed arranged and
operating as described with reference to and shown in the accompanying
drawings.
Dated this 9th day of November 101.
For the Applicants,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.