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Dec. 24, 1946.
D. 1.. SMITH
2,413,117
BILLET NICKING MACHINE
Filed May 20,_ 1945'
_5 Sheets¥Sheet l
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ATTORNEYS
Dec. 24, 1946.
2,413,117
D. 1_. SMITH
BILLET NICKING MACHINE
Filedv May 20, 1943
5 Sheets-Sheet 2
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ATTORNEYS
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Dec. 24, 1946,
D. L. SMITH
2,413,117
BILLET NICKING MACHINE
Filed May 20, 1943
5 Sheets—Sheet 3
INVENTOR
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BY .
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ATTORNEY5
1)» 24, 1946.
D. L. SMITH
2,413.117. ~
BILLET NICKING MACHINE
v Filed May 20, 1943
5 Sheets-Sheet 4
.miUE
INVENTOR
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ATTORNEYS
Dec. 24, 1946.
D. L. SMITH
BILLET NICKING MACHINE
' 2,413,117
Filed May 20, 1945
5 Sheets-Sheet 5
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£44! ,4’ 21%
Patented Dec. 24, 1946
2,413,117
UNITED STATES PATENT OFFICE
2,415,117
BILLET NICKING MACHINE
Donald L. Smith, Dunellen, N. J ., assignorto Air
Reduction Company, ‘Incorporated, va corpora
tion of New York
Application May 20, 1943, Serial No. 487,724
4 Claims. (01. 266-23)
1
2
This invention relates to improvements in ap
‘ engage the front and rear faces of the corre
paratus for nicking or grooving billets on oppo
site sides by means of gas cutting torches so that
the nicked billets may be broken into short
pieces suitable for use as stock blanks in forg
-. guide rail on three sides so that the frame 3 is
ing shells and bombs, and in making various
' movable only in a vertical direction and in that
sponding guide rail, and a roller 5 which en
gages the edge faceof the guide rail. Thus the
rollers of each group engage the corresponding
other articles.
direction it is movable quite freely.
One type of machine that has been proposed
A transverse guide rail 6 extends across the
for nicking square billets has a vertically mov
full width of the frame 3 and is supported at
able frame on which a pair of gas cutting 10. each end by a horizontal rod 7 which is mount
torches are so supported that their cutting jets
ed to slide in a bearing 8 secured to the corre
may be directed against opposite vertical sides
sponding end of the vertically movable frame 3.
of the billet. The frame is operated by a motor
The rods 1 have racks 9 along their lower sides
to move the torches vertically across the side
engaging‘with pinions Ill-mounted on the ends
faces of the billet at the desired uniform cutting 1.5 of a shaft II (Fig. 1) rotatably supported by the
speed and thereby simultaneously produce in the
vertically movable frame 3. There is a hand
two billet faces a pair of vertical nicks which
wheel I2 at each end of the shaft II. By turn
are directly opposite each other.
ing. either hand wheel to rotate the shaft 1 I
The principal object of this invention is to
both pinions H] are rotated to move the rods ‘1
improve the construction and operation of a bil a). simultaneously in their bearings and thereby
let nicking machine of this type, particularly by
adjust- the guide rail 6 either forwardly or rear
providing additional advantageous adjustments
wardly. Two separate torch supports l3 are
of the torches relative to the vertically movable
slidable alongthe guide rail 6 and are adjust
frame that supports them, by improving the
able transversely of the machine by lead screws
mechanism for imparting vertical movement to
l4 rotatably supported in bearings carried by
the torch-supporting frame, by so constructing
the guide rail. Cranks l5 are fastened to the
the machine that most of the mechanism for ac
outer ends of the lead screws I 4. By turning
tuating the vertically movable torch-supporting
the crank at one side of the machine the torch
frame may be enclosed to exclude dirt and grit,
support l3 at that side of the machine may be
and by providing certain other novel features as 30 adjusted transversely along the guide rail 6.
will hereinafter appear.
A gas cutting torch it, such as oxyacetylene
In the accompanying drawings:
cutting torch, is carried by each support l3 by ‘
' Figure 1 is a front elevation of a nicking ma
connecting structure as follows: The torch is
chine embodying the improvements;
clamped in a torch holder l1 having a stud I8
Fig. 2 is a side elevation of the machine shown 35 disposed longitudinally of the machine and ex
in Fig. 1;
tending into a clamp I 9 (Fig. 2). The stud I8
- Fig. 3 is a plan view of the motor housing with
is rotatable in the clamp I 9 to change the in
the cover removed to show the interior mech
clination of the torch and the clamp l9 may be
anism;
adjusted to change the friction on the 'stud. A
Fig. 4 is a side elevation of a modi?ed form of .40 Worm vwheel .20-on-the studi? meshes with a
mechanism for actuating the vertically movable
worm 21 on a shaft 22 that is mounted to turn
torch-supporting frame;
in bearings at oneside of the clamp It. ‘This
shaft may be turned by a knob 23 to swing the
torch holder about the axisof. the stud l8 when
.
Fig. 5 is a front elevation of the structure
shown in Fig. 4, and
Fig. 6 is a plan View of the motor housing 45 ever the tip of the torch is to be adjusted to
shown in Fig. 4 with the cover removed to show
ward or from the side Wall of the billet. This
the interior mechanism.
..
Referring ?rst to Figs. 1 to 3, the machine
therein illustrated has a housing I to the front
adjustment is made manually when-necessary
to cause the torch tip to follow irregularities in
the surface of the ‘billet during a nicking oper
corners of which a pair of vertical guide rails 50
2 are fastened. A torch-supporting frame 3 ex
. The clamp I9 is clamped to the outer end of a
tending transversely across the front of the ma
rod at having a rack 25 at its underside. The
chine is mounted for vertical movement on the
rod 24=is mounted to slide longitudinallyin a
guide rails 2. At each corner of the frame 3. there
bearing 26 supportedby the corresponding torch
is a pair of rollers 4, best shown in Fig. 2, which 555 support~l3. A pinion 21 mounted to turn in the
ation.
;
>
-
~
2,413,117
3
bearing 25 meshes with the teeth of the rack
25 and may be turned by a knob 28 to move the
rod 24 longitudinally and thereby adjust the
torch lengthwise of the billet. Simultaneous ad
justment of the two torches i6 lengthwise of the
‘billet is accomplished by turning either of the
4
enough to constitute a handle 48 by means of
which the movable frame 3 can be raised and
lowered by hand when the clutch 39 is disen
gaged.
Figs. 4 to 6 inclusive illustrate a modi?cation of
the motor operated means for moving the torch
supporting frame 3 vertically. In this modi?ca
hand wheels IE, but for fine adjustment. the knob
tion’ the housing I is reversed so that the motor
23 is turned to adjust its associated torch length‘
compartment is in the front instead of the rear.
wise of the billet independently of the. other
The
shaft 34 now extends transversely through
10
torch.
the rear compartment and is rotated from the
A shoe E9 is clamped to each of the torches and
motor ‘30- through a disc clutch 39 in the same
these shoes bear against the vertical sidewalls
manner as described in connection with Figs. 1
of the billet and hold the torch tips spaced the
to 3. In this case, however, the hand lever 4|
desired distance from the billet walls. In Fig.1‘
a billet is represented at B but the torches are 15 ‘for operating the clutch is at the rear of the
housing. In this modi?cation the ends of the
shown adjusted the maximum distance apart and
shaft 34 do not have pinions as in the machine
therefore the shoes are not shown incontact with
illustrated in Figs. 1 to 3 but are secured to arms
the vertical side walls of the billet. By turning
49 located outside of the housing. The forward
the cranks I5 the torches may be moved inwardly
from the position shown in Fig. 1 to a position 20 end of each arm 49 is connected by means of a
link 50 to the corresponding end of the vertically
in which the shoes 29 contact with the vertical
movable frame 3. The rear ends of the arms 49
sides of the billet and in which the tips of the
carry counterweights 5|. The motor 30 is ener
cutting torches are spaced the proper distance
gized long enough to impart a partial revolution
from the billet walls.
Power for moving the frame 3 vertically on the 25 to the shaft 34 in one direction or the other to
swing the arms 49 and thereby move the frame 3
upwardly or downwardly,
In both forms of the invention the motor 30
may be controlled by a hand switch 52 positioned
in the motor compartment and having a hand
lever 53 operable at the exterior of the housing.
is sufficient to note that the governor may be ad
guide rails 2 is supplied by an electric motor 30
(Figs. 2 and 3) within the housing I. The motor
has acentrifugal speed governor 3| which may
be of the type disclosed in the patent to C. ‘T.
Evans, No. 2,032,743. For the present purpose it 30
justed by turning a knob 32, positioned outside
of the housing I, to cause the motor to move the
frame 3 and the torches at the desired uniform
cutting speed.
T
The housing I is preferably divided into two
compartments by means of a transverse partition
33~a rear motor compartment in which the mo
tor 33 is located and a forward gear compart
ment. A shaft 34 turns in bearings at opposite 40
sides of the housing and extends transversely
through the. forward compartment. A worm
wheel 35 turns on the shaft 34 and this worm
wheel meshes with a worm 36 mounted ona shaft
31 which extends rearwardly into the motor com
partment where it is driven by the motor 30
through reduction gearing 38. The driving plates
of‘ a multiple disc clutch 39 are connected with
the worm wheel 35 and the driven plates of the
clutch are splined on the shaft 34. The clutch
is engaged and disengaged by means of a yoke
40 operated by a hand lever 4| positioned outside
of and in front of the housing‘ I.
The forward gear compartment of the housing
I may be ?lled with grease up to a certain'level
in accordance with the usual practice of lubri
eating gear boxes.
'
Limit switches may be provided for stopping the
electric motor when the frame 3 has moved far
enough in either direction to complete the nick
ing operation. They may be associated with the
machine shown in Figs. l'to 3 in a manner well
understood in the art. In the modi?cation of
Figs. 4 to 6 two of such limit switches are'rep
resented at 54 (Fig. 6). They are actuated by an
abutment 55 fastened to a rod 56 which is
mounted to slide forwardly and rearwardly in the
housing I. A yoke 51 secured to the shaft 34 en
gages either one of a pair of shoulders 58 on the
rod 55 when the shaft 34 has rotated far enough
to move the torch supporting frame 3 the desired
distance. The rod 55 will thereupon be shifted to
cause the abutment 55 to actuate one of the limit
switches 54 to stop the motor. The rod 55 and.
the abutment 55 are yieldingly maintained in a
neutral position by means of coil springs 59. The
hand switch 52 may be a two-position starting
switch and may be connected in circuit with the
motor and the limit switches in a manner well
understood in the art so that when the motor is
stopped at the end of a nicking operation by one
of the limit switches, the snapping of the switch
into its other position causes the motor to rotate
in the reverse direction.
In either of the modi?cations the housing I
Pinions 42 are secured to opposite ends of the
shaft 34 outside of the housing I, as best shown
in Figs. 1 and 3. These pinions mesh with verti 60 may be mounted stationarily on. a ‘suitable sup
porting frame provided‘ the billet to be nicked is
cally disposed racks 43 (Fig. 2) secured to the
supported by a conveyor by means of which‘ the
rear of the vertically'movable frame 3. Thus
billet‘ may be moved longitudinally relative to
when the clutch 39 is engaged the torch support
ing frame 3 moves upwardly when the motor ro
tates in one direction and moves downwardly
when the ‘motor rotates in the other direction.
The weight of the frame 3 and the parts car
ried by it are balanced by means of counter
weight's 44 (Fig. 1) carried at the rear ends of a
pair of arms 45 which are mounted on the oppo;
site ends of ‘a transverse shaft 46 rotatably sup
ported on‘ top of‘the housing 1. Each arm 45 is
pivotally connected near its forward end to the
corresponding end of the frame '3 by means of a
link 41. Each of the arms projects forwardly far
the torches so that the billet can be nicked at
spaced points along its length. Preferably, how
ever, the housing I is supported on a carriage
of any suitable type (not shown in the draw
ings) which is capable of moving the entire
structure shown in the drawings lengthwise of
the billet.
In this case the desired relative move
ment between the torches‘ and the billet length
wise ‘of the billet may be effected either by mov
ing the carriage which supports all of the parts
of the nicking apparatus or by moving the billet
by means of its conveyor.
'
'
2,413,117
6
2. A billet nicking machine comprising a hous
It will now be seen that thetorches may not
only be adjusted transversely of the machine to
ing, a pair of horizontally spaced vertical guides
bring the shoes 2e into contact with the vertical
secured to the housing, a frame movable verti
side walls of the billet but they may also be
cally along the guide means, said frame being
simultaneously adjusted lengthwise of the billet
horizontally elongated and adapted to extend
by turning either of the hand wheels 12. In
transversely across the top of the billet to be
dividual adjustment of the torches lengthwise of
nicked and being guided at its opposite ends on
the billet to bring the tips of the torches into
said guides, at least one torch holder connected
exact transverse alignment may be accomplished
with the frame, a torch mounted in the holder
by turning the knobs 23. Individual swinging of 10 so that its tip is adapted to direct a cutting jet
each torch about the axis of the stud it to move
against a vertical side of a billet for nicking
the tip of the torch toward or away from the
such side when the frame moves vertically, a
side wall of the billet may be accomplished by
transverse shaft rotatably mounted in the hous
turning the knob 23. As above stated, this ad
ing, a motor in the housing, means for rotating
justment may be made when necessary during
said shaft from the motor, an actuating element
the nicking operation to cause the tip of the
secured to each end of said shaft outside of the
torch to follow irregularities in the surface of
housing, and means operatively connecting said
the billet.
actuating elements to opposite ends of the frame
Enclosing of the motor and the parts in the
to move it vertically along the guides.
gear compartment to exclude grit and dirt is an 20
3. A billet nicking machine comprising a hous
important feature since nicking machines are
ing, a pair of horizontally spaced vertical guides
used in mills under dirty conditions and where
secured to the housing, a frame movable ver
much of the dirt is of an abrasive nature and
tically along the guide means, said frame being
causes rapid wear of unprotected machine parts.
horizontally elongated and adapted to extend
The billet may be nicked at one place during
transversely across the top of the billet to be
vertical movement of the torches in one direc
nicked and being guided at its opposite ends on
ticn and then the billet and the torches maybe
said guides, at least one torch holder connected
moved relative to each other and lengthwise of
with the frame, a torch mounted in the holder
the billet and the next nicking operation may
so that its tip is adapted to direct a cutting jet
be performed by vertical movement of the torches
against a vertical side of a billet for nicking
in the opposite direction. However, nicking of
such side when the frame moves vertically, a
the billet on the upstroke only of the torches is
shaft rotatably mounted in the housing and eX
generally preferred. Return movement of the
tending transversely thereof, a motor in the hous
torches to starting position would be relatively
ing, means in the housing for rotating said shaft
slow if effected by the motor, but they may be
from the motor, a pinion secured to each end
returned to starting position quickly by throw
of said shaft outside of the housing, and racks
ing out the clutch 39 and moving the frame 3 to ‘
secured to opposite ends of said frame and hav
starting position by hand.
ing teeth meshing with the teeth of said pinions
While the work~piece to be nicked is referred
whereby rotation of the pinions moves the frame
to herein as a billet, it will be understood that 40 vertically along the guides.
the machine is not limited in its use to the nick
4. A billet nicking machine comprising vertical
ing of billets but can be used for nicking other
stock, such as square bars, blooms, ingots, and
the like.
guide means, a frame movable vertically along
the guide means, said frame being horizontally
elongated and adapted to extend transversely
I claim:
1. A billet nicking machine comprising a hous
ing, a pair of horizontally spaced vertical guides
across the top of the billet to be nicked and
being guided at its opposite ends on said guide
means, means for moving said frame vertically
secured to the housing, a frame movable ver
on the guide means, a horizontally-extending
tically along the guide means, said frame being
guide in front of said frame and extending
horizontally elongated and adapted to extend 50 lengthwise of the frame and substantially par
transversely across the top of the billet to be
allel thereto, guide-supporting members secured
nicked and being guided at its opposite ends on
to opposite ends of the guide and adjustably
said guides, two torch holders connected with
carried by the frame for supporting said hori
the frame in position to hold torches on oppo
zontally-extending guide from the frame, means
site sides of a billet, torches mounted in the , on the frame for simultaneously adjusting said
members to adjust the horizontally-extending
holders so that their tips are adapted to direct
cutting jets against opposite vertical sides of
guide toward and away from said frame longi
the billet for picking both of such sides simul
tudinally of the machine, two torch supports
taneously when the frame moves vertically, an
actuating element movably mounted on the ex
60
mounted to slide transversely of the machine on
said horizontally-extending guide, means for ad
justing said supports along the horizontally-ex
terior of said housing at each end thereof and
operatively connected to the corresponding end
tending guide, and a torch holder carried by
of the frame for moving the frame vertically
each support.
along the guides, a motor within the housing,
DONALD L. SMITH.
and transmission means between the motor and
the actuating elements and also located within 65
the housing.
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