Improvements in and relating to Can-heading Machines.
Year: 1898

page_text: Date of Application, 8th Feb., 1898-Accepted, 4th June, 1898
[Communicated from abroad by JAMES L. BOARD, of Chicago, Illinois, United
States of America, Mechanic.]
Improvements in and relating to Can-heading Machines.
I, DAVID YOUNG, Patent Agent, of the Firm of D. Young & Co., of 11 and 12,
Southampton Buildings, London, W.C., do hereby declare the nature of this in-
vention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:
_
My invention has for its object the production of a can-heading machine, that
is, a machine adapted to place the ends or heads on the bodies of sheet-metal
cans, and it consists in a combination of devices and appliances hereinafter
described and claimed.
In the drawings,
Figure 1 is a front elevation of the machine.
Figure 2 is a side elevation.
Figure 3 is a detail illustrating the can feeding mechanism
Figure 4 is a sectional view on the line 44 of Figure 1.
Figure 5 is a sectional view on the line 5-5 of Figure 1.
Figure 6 is a plan view of one of the reciprocating heads.
Figure 7 is a section on the line 7-7 of Figure 6.
Figure 8 is a sectional view on the line 8-8 of Figure 7.
Figure 9 is a sectional view on the line 9-9 of Figure 7.
Figure 10 is an end elevation of the head.
Figure 11 is a detail of one of the bell crank levers.
Figure 12 is a front elevation of the feeding head.
Figure 13 is an enlarged detail of the portion of the head shown in Figure 7.
Figures 14 and 15 are details illustrating the cam movements.
In carrying out the invention A represents the main frame of the machine, B the
main shaft, C the drive wheel. Referring to Figure 1 it will be seen that there is
a can run-way D down which the cans are fed, and on each side thereof, can
head run-ways E E¹ down which the can heads are fed. A are suitable
standards extending from the main frame A having bearings in their upper
ends As to support the reciprocating parts of the heading mechanism as hérein-
after explained. F is a reciprocating frame carried in the bearings As shown in
detail in Figures 6 and 7.. G is a stem movable in the reciprocating frame F and
having on its end a plate H. On this stem supported by the bearing J is a frame
made up of two arms J1 J2, one being above and the other below the stem, these
arms extending through the flange f of the reciprocating frame F and engaged
to a ring K by screws j. F¹ is a ring engaged to the flange f of the reciprocating
frame F. Engaged to the face of the ring F¹ by the bolts 2 is another ring F.
The ring and the ring F3 have their opposing faces channeled to receive the
ring, K, the channel for said ring K being slightly larger than the ring so that the
latter may reciprocate therein. M is a series of what may be termed bell crank
levers, shaped as shown in Figure 11 with rounded bearing surfaces mm² to fit.
.

page_text: in the corresponding rounded faces m² m³ of the rings F1 F2. Each of the levers
is rounded on its end as at m to fit in the channel k in the face of the ring K
while the other end of the lever is provided with a rounded end m³ and a
shoulder mo.
It will be observed by reference to Figure 8 that the entire circumference of the
rings is filled with the levers M. In the face of the ring F¹ is an opening or
slot F3 shown in Figures 6 and 9, the can head run-way terminating adjacent to
this slot or opening. Supported from suitable hangers A³ (Figure 1) is a shaft N.
Pivoted on this shaft is an arm N¹ (Figure 3) carrying on its upper end a cross
head N2 (Figure 12). The latter is shaped with a pusher plate N3 at each end
for feeding the can heads and with a circular portion N for feeding the can
bodies. On the main shaft B of the machine as shown in (Figure 4) is a cam N5
and on the arm N¹ are rollers n one for each side of the cam, so that as the cam
is revolved the arm N is reciprocated and consequently the cross head or feeding
head is thrown forward and back. (Figure 3) is a bell crank lever pivoted to
the face of the run-way 1), one end terminating closely adjacent to the lower end
of said run-way, while to the other end is pivoted a rod O with a spring 02 bearing
on the end of the bell crank lever 0, the tendency being to keep the lower end or
long arm against the run-way I), and hold the can-body in the concave surface N.
Pivoted to this long arm is another lever 03 the end of which extends down
adjacent to the delivery chute D'. A rod 0+ pivoted to the lever 03 and passing
through the short arm of the lever O carries a spring which bears upon the
lever 03, and tends normally to keep the latter upon the can which is fed
against it.
On the main shaft B (Figure 4) is a cam P for reciprocating the frame I and
consequently the head as a whole. This is accomplished by means of the roller 1"
travelling in the cam groove 12. P3, P4 are levers to which the roller P¹ is
pivoted, each extending to a shaft 15 (Figures 5 and 15). On this shaft is an
arm P which extends up to a point adjacent to the reciprocating frame F.
Engaged to this frame is an arm 1" and a link P8 is pivoted to the arm P7 and to
the upper end of the lever P thus connecting them. Thus a revolution of the
cam I tends to alternately elevate and depress the joined ends of the levers P³ P+
and each frame F is thus reciprocated. On each shaft P on each side of the
machine is a lever Q and as both sides of the machine are duplicates I will proceed
to describe but one side. Q¹ is an arm keyed to the stem G (Figures 5 and 14)
and connected with the upper end of the lever Q by the link Q2. The lever Q
is a bell crank lever with the end provided with a roller Q3 which travels in
the cam groove Q of the cam Q so that as the shaft is revolved the lever Q is
tilted and consequently reciprocates the stem G and as the levers. Q for each
side of the machine are pivoted together as shown in (Figures 4 and 14) both
stems G will be simultaneously reciprocated. Pivoted at j¹ to the frame J is a
link R (Figures 1 and 6). Supported on the reciprocating frame F is a bearing R¹
carrying a shaft on which the two arms R2 R3 are engaged. The end of the link R
being pivoted to the end of the arm Re. Pivoted to the end of the arm R³
(Figure 1) is a rod R which extends down and is pivoted to a lever R5 and the
other end of the said lever R5 being pivoted on the shaft 15 on the opposite side
of the machine (Figure 1). This causes the two levers R to cross each other and
at the point where they cross is provided a roller R which travels in the cam
groove Rs of the cam Re on the shaft B. Thus a revolution of the cam R6 alter-
nately raises and lowers the two levers R5 and they, through the rods R and
links R³, reciprocate the frame J.
The operation is as follows. A revolution of the main shaft B operates the
entire mechanism and I will first describe the operation of the can head feeding
machine. A revolution of the cam N on the shaft B causes the arm N¹ to recip-
rocate back and forth underneath the can and can head chutes D, E, E. The
portion N4 of the cross head on the arm N³ picks up a can and throws it forward

page_text: as shown in (Figure 3), the flat portion n serving to keep the balance of the cans
in the chute. The lever O³ holds the can in place while the heads are being put
on and as the arm N¹ recedes to pick up another can the can will drop to the
delivery chute D' and be held there by the lever 03 until the arm N¹ again comes
forward when the portion n¹ will serve to throw the can down the chute as shown
in Figure 3. The feeding of the can heads is simultaneous with the can bodies
the can heads being thrown forward into the heading mechanism by the cross
heads N³ shown in Figures 2 and 12. As the can bodies and can heads reach
their respective positions the cams are so arranged that the cam Q5 will first come
into play and will through the lever Q and link Q, throw the stem G (Figure 7)
forward carrying with it the head H, which, engaging the can head, forces the
latter to the position shown by dotted lines (Figure 13). As soon
as this is
accomplished the cam P comes into play and through the levers P³ P6 and
link P8 the frame F and consequently the entire head is moved forward so that the
end of the can body is caused to enter the head as shown by the dotted lines S
(Figure 13). The end of the can body is guided into its can end by the beveled
face S¹ of the head and beveled face m of the levers M. Up to this time the
cams P R have moved simultaneously or in unison but as soon as the can body
has entered the can head the arrangement of the cams is such that the rod R+
will through the lever R5 and cam R be thrown upward and this action through
the shaft R¹, links R2 and link R will draw back the fitting J and consequently
will move the ring K in its bearing and the movement of the ring K will tilt-the
bell crank levers M and throw the end me upward as shown by the dotted lines in
Figure 13 thus releasing the can head. The cam P now comes into play again and
draws back the frame F, the stem G and head H remaining stationary however,
to hold the can head in place on the can body until the main head is drawn back
entirely clear of the can body when the cam Q again comes into play and carries
the stem G and head H back, when the can drops down as shown in (Figure 3)
to the delivery chute D¹ and is carried away.
It is of course obvious that many details of the above described construction
might be altered without departing from the spirit of my invention.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, as communicated to
me.by my foreign correspondent, I declare that what I claim is:-
1. In a can-heading machine, the heading-apparatus thereof, consisting of a
head provided with mechanism for picking up and advancing the can-head,
mechanism for engaging and holding the can-head, mechanism for advancing the
entire head onto the end of the can-body, mechanism for moving the said holding-
mechanism to release the can-head on the body, and mechanism for retracting
said can-head advancing mechanism after the can-head has been released, sub-
stantially as described.
2. In a can-heading machine, the heading-apparatus thereof, consisting of a
head provided with mechanism for picking up and advancing the can-head,
mechanism for engaging and holding the can-head, said latter mechanism con-
stituting also the centering-mechanism for the can-body end, mechanism for
advancing the entire head onto the end of the can-body, mechanism for moving the
said holding-mechanism to release the end of the can-body and its accompanying
head, and mechanism for retracting said can-head advancing mechanism after the
head has been withdrawn, substantially as described.
3. In a can-heading machine, a reciprocating head for pressing the can-heads
onto the can-bodies, said head carrying a series of radially movable levers for
holding the can-head while it is being passed onto the can-body, substantially as
described.
4. In a can-heading machine, a reciprocating head carrying an inner head
adapted to advance the can-head, mechanism for positively reciprocating the latter,
a series of radially movable levers against which the can-head will strike and by

page_text: 4
which it is held, and mechanism for tilting said levers away from the can-head
before said inner head leaves the can-head, substantially as described.
5. In a can-heading machine, a reciprocating head provided with a series of
radially moving projections adapted to engage and hold the can-head, an inner
head adapted to engage and advance the can-head against said projections,
mechanism for positively reciprocating the latter, and mechanism for withdrawing
or moving said projections radially before the inner head leaves the can-head,
substantially as described.
6. In a can-heading machine, a reciprocating head, a reciprocating ring carried
by said head, means for reciprocating the ring in a line parallel to the length of
the head, a series of bell-crank-levers one arm of each being engaged by said
reciprocating ring and shoulders on the opposite arm of each adapted to engage and
hold the can-head, substantially as described.
7. In a can-heading machine, the reciprocating head composed of two parts, a
reciprocating ring embraced by said parts, a series of bell-crank-levers one arm of
each being engaged by said reciprocating ring, and shoulders on the opposite arm
of each adapted to engage and hold the can-head, substantially as described.
8. In a can-heading machine, a reciprocating head composed of two parts, a
reciprocating ring embraced by said parts, a series of bell-crank-levers formed
with bearing surfaces at the angle of the two arms, bearing surfaces on the two
parts of the head in which the bearings on the levers rest, one end of each lever
being engaged by the reciprocating ring, the other end of each lever being pro-
vided with a shoulder adapted to engage and hold the can-head, substantially as
<described.
9. In a machine for operating on sheet-metal cans, a chute carrying the cans,
an oscillating plate provided with means for engaging the lower can and moving
it away from the chute and a portion on said plate adapted as the plate advances
to close the end of the chute, substantially as described.
10. In a machine for operating on sheet-metal cans, a vertical chute for holding
the can-bodies, an oscillating plate beneath the end of said chute, provided with
a concave surface for engaging a can-body, means in front of said plate for holding
the can-body on the concave surface, and a comparatively flat portion of said plate
adapted, as the lower can-body is picked up and advanced, to close the end of
the chute, substantially as described.
11. In a can-heading machine, a chute for the can-bodies, and one or more
chutes for the can-heads, an oscillating arm carrying a plate for engaging the
lower can-body and a plate for engaging each can-head, each of said plates
being shaped with one portion to engage the can-body or can-head and another
portion adapted to close the end of the chute, substantially as described.
12. In a can-heading machine, a chute for the can-bodies an oscillating plate
having a concave surface in which a body drops and an arm yieldingly held
against the can-body to hold it in said concave surface, substantially as described.
13. In a can-heading machine, a chute for the can-bodies, a reciprocating plate
having a concave surface adapted to engage and hold a can-body, a yielding arm
adapted to hold the body in said concave 'surface, and another yielding arm
pivoted to the first arm and adapted to permit the discharge of the body after
it has been headed, substantially as described.
14. The combination, with the chute D for the can-body, of the lever O,
spring 02 for exerting pressure on said lever an arm 03 pivoted to the lever
and a spring.05 for exerting pressure on the arm 03, substantially as described.
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Wahm1000
D. YOUNG & Co.,
11 &. 12, Southampton Buildings, London, W.C.,
Agents for the Applicant.