Improvements in and relating to the Manufacture of Can-bodies and to Apparatus therefor.
Year: 1898

page_text: Date of Application, 8th Feb., 1898-Accepted, 9th July, 1898
[Communicated from abroad by JAMES L. BOARD, of Chicago, Illinois, United
States of America, Manufacturer.]
Improvements in and relating to the Manufacture of Can-bodies
and to Apparatus therefor.
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
invention 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 machine for forming can-
bodies, and consists in mechanism for forming the blank; mechanism for shaping
the body and engaging the edges of the same; mechanism for bumping the edges
of the same to permanently engage them; mechanism for fluxing or rosining the
joint, and mechanism for soldering the same. The details of the mechanism will
be more fully described and claimed.
In the drawings,
Figure 1 is a side elevation of my machine.
Figure 2 is an end elevation thereof.
Figure 3 is a sectional view on the line 3-3 of Figure 1.
Figure 4 is an end elevation of the end of the machine.
Figure 5 is a side elevation of a portion of the machine showing the bumping
mechanism.
Figure 6 is a sectional view on the line 6-6 of Figure 1.
Figure 7 a sectional view on the line 7-7 of Figure 5.
Figure 8 is an elevation in the direction of arrow 8, Figure 5.
Figure 9 a detail illustrating the folding mechanism.
Figure 10 is a side elevation in the direction of arrow 10 Figure 9.
Figure 11 is a side elevation in the direction of arrow 11 Figure 9.
Figure 12 illustrates the blank after the edges have been formed but before
the seam is locked.
Figure 13 illustrates blank after the seam is locked.
Figure 14 a detail illustrating the endless chain operating mechanism.
Figure 15 an elevation in the direction of arrow 15 Figure 14.
Figure 16 a plan view in the direction of arrow 16 Figure 14.
Figures 17 and 18 are details of the endless chain.
Figure 19 is a detail of the projection on the chain link.
Figure 20 a detail.of the clutch mechanisms shown in Figure 14..
Figure 21 is an end view of the mechanism for operating the horn.
Figure 22 is a side elevation of the same.
Figure 23 a plan view of the same.
Figure 24 an end elevation of the mechanism for operating the fluxing device.
Figure 25 a plan view of the fluxing device.
Figure 26 a side view of the soldering mechanism.
Figure 27 is a sectional view on the line 27-27 of Figure 26.

page_text: Figure 28 a plan view of the soldering iron.
Figure 29 a plan view in the direction of the arrow 29 Figure 26.
Figure 30 is a side elevation of the gauging fingers.
Figure 31 is a plan view of the same.
Figure 32 is a section of the flux vat.
In carrying out the invention A represents the main frame of the machine of
any desirable construction, B the driving pulley located on the shaft B¹ and
revolved from any suitable source of power. B2 is a sprocket wheel on the
shaft B connected by the sprocket chain 13 with the sprocket wheel B* on
the countershaft B. C represents any suitable receptacle for holding the
blanks A¹ A2 are suitable standards extending from and a part of the main frame
and form the bearings for the main shaft B. Pivoted to the extensions a on the
standard A¹ is the arm D (Figures 1, 14 and 15), the upper end of this arm is
provided with two rollers d, d¹. D¹ is a cam plate on the shaft 331 and the
rollers d d travel against opposite faces on this plate D¹. Thus, a revolution of
the shaft B causes a reciprocation of the lower end of the arm D. Pivoted to
this lower end is a rod D2 and the latter is pivoted to an arm D3 on the counter
shaft D. The arm D³ is in the form of a bell crank lever and is provided on the
end of its arm D5, with the pawl D6 (see Figure 20). On the shaft D4 is a
disc D provided with notches on its periphery. These notches 2 and the end
of the pawl D6, are of a peculiar angular shape for a purpose hereinafter
described. On the same shaft D are two sprocket wheels D8 over which pass
sprocket chains 19 Figures 14 and 16, the opposite ends of said chains being
passed over sprocket wheels D10, supported from the arm A³ on the main frame.
It will be seen that by the above described mechanism that an intermediate feed
is provided for the blanks, the chains being provided with arms or projections d³
shown in detail in Figure 19 for engaging the blanks and a pawl D₁ (Figures 14
and 20) being provided to prevent an extended backward revolution of the chain.
At this point. however, I desire to call attention to the fact that the notches 12
are slightly wider than the end d of the pawl D". The purpose of this is that
when the chain has fed the blank to the desired point through the medium of
the movement of the pawl D6 and the pawl starts back to engage another notch
as it rides out of the notch there being a play between the end d of the
pawl D and the side of the notch which enables the pawl D6, because of the
angular shape of its end and of the notch d², to draw the disc D7 a very slight
distance back in the direction of the arrow Figure 20, and this of course will move
the chain correspondingly and will carry the projections away from the edge
of the blank. The desirability of this slight backward movement at the
end of the normal forward movement will be apparent as the description of the
machine progresses.
I will now describe the mechanism for stamping or forming the ends of the
blank, shown more particularly in Figures 2, 5, 6, 7 and 8. On the main
shaft B is a crank E (Figure 6) surrounded by a collar E', the latter provided
on its end with a pitman E2 having on its end a ball E3 adapted to fit into a
corresponding ball socket on the cross head E¹. The collar E is split and the
tightening collar E5 is provided with a set screw E so that by tightening the
set screw the pitman may be held in the collar E' by means of the set screw in
addition to the screw-threads. The cross head E is shaped as shown in Figure
5 with a bumper portion E7, the ways E8 and the portion E" to which the forming
die is engaged. E10 E are dies, shaped to fit the corresponding stationary
dies E1 E13 as shown in Figure 8, the dies being held to their respective plates by
E is a rod mounted in the bearing E¹ and the lower end passed
through the portion E9 of the cross head. On the lower end of this rod is a
block E16 and on the stationary frame a corresponding block E. A spring E18
tends to keep the block E16 in its lowermost position, a collar E¹ limiting the
movement however. Now, as may be seen, as soon as the portion E9 strikes the
collar E⁹ the rod and block will be carried up but as the cross head descends to
bolts e.

page_text: stamp the blank the blank will first engage between the two blocks E16 and E
and be steadied during the process of stamping. Thus a revolution of the
crank E operates to force down the dies and form the blank as shown by the
dotted lines Figure 12.
I will now describe the mechanism for bending or shaping the blank to form
On the main shaft B¹
the body, shown more particularly in Figures 9, 10 and 11.
is a cam F provided with a cam groove F1 on its face. F2 is a rod bifurcated at
its upper end as at F3 to embrace the shaft B' and provided with a roller F*
which travels in the cam groove F. The result of the revolution of the shaft 13¹
is a reciprocating motion for the rod F2 in the direction of arrows X Figure 9.
arm 5, one
Pivoted to the arm a² extending from the main frame A is an
end being slotted to receive the pivot f that engages it to the end of the
rod F, while at the opposite end are provided two arms F6 F7 (Figure 9). The
pivot fis mounted on a block T that embraces the end of the rod F2.
spring T normally keeps the block T at the lower end of the rod F2 but if the
mechanism should be clogged by a misplaced blank, or otherwise, this spring
will yield and thus save the remaining part of the mechanism from injury.
Fe is the horn around which the blank is folded. F9 F10 are wings, each wing is
provided with a projection f10 to which the respective arms F6 F7. are pivoted.
A
The construction of the wing F10 and its connecting arm is as follows:-
f(Figures 9 and 11) is a fitting shaped at each end to loosely embrace the rod f³,
the upper end of this fitting is pivoted at f4 to the arm f10 on the wing F10. On
the rod f3 are two sets of nuts f5 f each set is adjustable and adapted to bear
on its respective end of the fitting f. f is a spring, one end bearing on the
shoulder and the other end bearing on the lower end of the fitting f. It will
be observed that between the adjustable nuts fo and the end f of the fitting f
there is a slight distance or play, the result being that as the wings are thrown
up around the horn, the wing F10 will be carried slightly in advance of the
wing until the blank and wing come to a bearing on the horn, when the
spring will yield slightly to accommodate the full play of the arm F5. The amount
of this yielding is limited by the adjustable nuts f³.
I will now describe the mechanism for flattening or bumping the seam after the
body has been folded around the horn. As before explained E7 Figure 5 carries
the bumper G. This bumper portion E is slotted on its under side and the
bumper steel proper G is held therein by the set screws G¹. Above the bumper
steel G and between it and the bumper portion E is a wedge G2 adapted to be
forced in or out above the bumper steel by the set screw G³ a set screw G* being
provided to additionally lock the wedge in position. This wedge G2 allows of a
vertical adjustment of the bumper up or down accordingly as it is forced in
or out.
As above explained the bumper steel and dies are carried on the same cross
head so that while one blank is being shaped by the dies, the vertical movement
of the pitman E2 operates the bumper steel to lock the contiguous edges of the
blanks into a seam as shown in Figure 13. G³ (Figure 9) represents a block
stationary on the main frame A to which the wings F9 F10 are pivoted. In order
that the blank may be fed under the horn F8 mechanism is provided for raising
said horn slightly, and this I will now describe. Go (Figures 5, 21, 22 and 23)
is an arm rigidly connected to the shaft G7 carried by the main frame A. On
the end of this arm G6 the horn F8 is carried as shown in Figure 23. On the
shaft G is an upright arm. G8 provided on its upper end with a roller G³ which
bears upon the cam G10 on the main shaft B. Thus a revolution of the cam G10
acts to tilt the arm G8 and this tilts the arm G6 and lifts the horn F8. In order
that when the blank is fed under the horn it may be straightened and held in
its proper position until the horn drops and clamps it, I provide the gauging.
fingers G As shown in Figures 30 and 31 these fingers are engaged to a
On this shaft is also an
shaft G which is supported by the main frame A.
arm G the outer end of which rests on a set screw G14, and is normally held

page_text: thereto by the spring G¹³. This spring enables the fingers to yield laterally. As
the chain D feeds the blank against these fingers, if the blank is not in its
proper position, the fingers straighten and hold it where it should be until the
horn, by dropping, clamps it. In order that the blank as it is fed forward nay
have a constant friction on it to prevent its moving too far forward and also to
hold it in place in other directions, I provide the pin 9 (Figure 5) having a
beveled face g toward the direction from which the blank approaches. This pin
works in a socket g² (shown in dotted lines) carried by the frame A, a spring g
being provided to keep the pin normally in its upper direction and a collar g
being provided against which the end of the spring may bear. As soon as the
seam has been bumped as above explained the chains 19 carry it off from the
horn F8 and onto the horn H where it is fluxed or rosined. This horn H is what
may be termed a compound construction. It is composed of a cylindrical por-
tion H (Figure 7) and three parallel strips H1, H3 and H³ supported from the
cylindrical portion H by the pieces h. The portion H is provided with a groove h¹
in which the seam of the can travels. The strips HH2 H3 act to steady the can
as it passes through the successive operations. The horn H is engaged to the
horn by the loose hook joint H (Figure 5).
The mechanism for accomplishing the fluxing I will now describe. It is
shown more particularly in Figures 24 and 25. On the main shaft 'B' is an
eccentric K surrounded by the collar K¹, a rod K² being attached to the collar.
Supported by the bearing K³ extending from the main frame is a countershaft
indicated by the dotted lines K' Figure 25. On this shaft is an arm K5 to
which the end of the rod K2 is pivoted. Keyed to this shaft is an arm K6. On
this shaft but stationary with respect to the bearing K³ is a sprocket wheel K
and on the outer end of the arm K is a bearing K8 carrying a shaft (indicated
by dotted lines K9) having on its end the sprocket wheel K10, a sprocket chain K"
connecting the sprocket wheels K and K On the shaft K is also provided an
arm K having on its lower edge a fluxing material K13 such as felt, wick or
any porous substance. This felt is clamped in the arm K12 by the screws K14.
K15 is a vat or receptacle containing the liquid flux, supported by the main
frame. In the vat above the liquid is a perforated diaphragm K16 and above
this diaphragm is a pad of felt or the like K". Now as will be seen a revolution
of the eccentric K operates to give the rod K2 a reciprocating motion in the
direction of the arrows y, Figure 24, and this operates to tilt the crank arm K³
which in turn oscillates the arm K. The wick K13 being mounted on
the shaft K and the latter being engaged by the sprocket chain K, with the
stationary sprocket wheel K7 as the arm K6 is oscillated back and forth, the
arm K and the wick K13 will always be maintained in a vertical plane thus
operating to bring the fluxing strip K3 alternately against the pad K" and against
the seam of the can. As soon as the cans are fluxed they are carried forward
one more movement by the chains D. At this point they are picked up by the
endless carriers J (Figure 29), the inner ends of the chains being supported by
sprocket wheels J, (Figure 3) and the outer ends by the sprocket-wheels Ja
(Figure 29). On the end of the shaft B is a beveled gear J³ meshing with the
beveled gear J' on the vertical shaft J5. On the upper end of this shaft Jo
is located one of the sprocket wheels J. On the shaft J5 is also a gear J6 which
meshes with the gear J7 on the corresponding vertical shaft Js and on the upper
end of the latter is the other sprocket wheel J2. Thus a revolution of the shaft B
operates to move the sprocket chains J. The latter are provided at intervals with
projections J to engage the can body and push it along over the horn H.
ously the distance between the projections J on each chain is the distance
travelled by the chain for one revolution of the shaft B¹, so that by properly
arranging the parts the can body will be picked up by the chains J as soon as
they have been thrown forward by the last movement of the chains D⁹.
Obvi-
I will now describe the soldering mechanism. Extending the length of the
machine, and supported by the main frame, are two longitudinal supporting

page_text: pieces N which support the solder cutting mechanism and the soldering
mechanism. Extending from these supporting frames N (Figure 27) are arms N1
having on their ends rollers n adapted to keep the soldering horn H in a central
position and N2 is a wheel journalled in the main frame and adapted to support
the outer end of the horn H. Extending also from the frames N are arms N³
adapted to support the soldering irons and adapted also to support the solder
cutting mechanism. This mechanism is shown inore particularly in Figures 26
and 27. The solder feeding and cutting mechanism being shown in Figure 27.
On the shaft B³ is a cam M. M' is a rod slotted in its lower end as at m to
embrace the shaft 135 and provided with two rollers m' and m² adapted to bear
upon the edges of the cam M. Thus as will be seen a revolution of the shaft B5
gives the rod M' a vertical reciprocation. Pivoted on the countershaft M2 (the
latter supported on the arm N³) is an arm or lever M* pivoted on its end with a
slot m³. On the rod M' is a pin m' that enters the slot m³, and suitably engaged
therein by a nut. Pivoted to the frame N at n¹ is an arm M5. The free end of
this arm M5 being connected with the rod M¹ by a link M. Working vertically
in the frame N is a cutter knife M7, the latter engaged to the arm M5 by a slotted
engagement as at M8. Pivoted to the frame N is a roller 0 and another
roller O. The peripheries of the said rollers being grooved and adapted to
engage the solder wire P and feed it. On the shaft of the roller O¹ is a ratchet
wheel O engaged to the roller 0¹, and on the arm M is a pawl 03 adapted to
engage the ratchet-wheel 02 so that when the arm M is raised the roller O¹ will
be revolved and the solder wire P fed the requisite distance. The slotted engage-
ment m³ is provided so that the length of solder feed may be varied. O is a
trough or chute below the solder wire into which the cut piece drops and is fed
down to the soldering iron. The operation of this soldering mechanism will at
once be seen. A revolution of the shaft B5 reciprocates the rod M' vertically and
thus tilts the arm M4 and feed the solder wire. As the rod M¹ comes down it
draws down the arm M5 and causes the knife M7 to cut the solder and the latter
drops down into the trough 04 and is fed to the soldering iron. Q (Figure 28)
represent what may be termed soldering iron boxes, each provided in its lower
edge (Figure 27) with a soldering iron Q. These soldering irons and their boxes
rest upon the soldering horn H and are steadied in position by the frame Q
extending along the sides and they are prevented from longitudinal movement by
the frames Q3 (Figure 26) extending across from one frame Q to the other at
each end of the series of solder boxes. On the end of the forward soldering iron
(Figure 28) is a soldering pot Q having a slot Q5 in the bottom. Q (Figure 26)
are supply pipes for gas or other fuel and air, and Q7 are heating irons or burners.
As the solder runs down the chute 04 into the solder pot Q+ it is melted and drops
through the slot Q onto the can seam. The can body being forced along as
before explained by the sprocket chains J. After receiving the solder it passes
successively under the four soldering irons Q' where the solder is thoroughly
soaked into the seam. Supported on the frame Q³ is an arm R and pivoted to
the outer end thereof is an arm R' and this arm R¹ is provided on its end with a
suitable wiper R2. This wiper R2 normally rests on the horn by its own weight
which is sufficient to insure the requisite pressure on the can body as it passes
underneath. The form of wiper which I have used and which I prefer is a block
of soft steel or iron made concave on its under side to fit the convex surface of
the can and heated from a suitable burner R³. This block of hot steel or iron
passing over the seam wipes off the surplus solder and gives a finished appearance
to the can.
It is obvious that many details of construction of my machine might be altered
without departing from the spirit of the invention and I would have it under-
stood that I contemplate the substitution of mechanical equivalents for the par-
ticular devices shown by me for accomplishing the various steps in the treatment
of the blank from its insertion in the machine to its discharge.
I also desire to call particular attention to the shape of the blank after they

page_text: have been stamped to form the seam as shown in Figures 12 and 13. By form-
ing on one side or one edge a raised portion S, in addition to turning the edges
as at S¹ to form the lock, when the bumper comes down to engage the two edged
S¹ together, it will flatten out the raised portion S and thus increase the diameter
of the body over the diameter of the horn, so that, whereas in previous machines
they have been obliged to reduce the diameter of the horn to enable the can body
to be slipped off after the seam has been formed, I can make the diameter of my
horn fixed and can easily slip the body off from the horn because of the fact
that the relative diameter of the body has been increased.
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. In a can-body machine, the combination of mechanism for carrying the
blank to the shaping dies, mechanism for engaging and holding the blank, and
mechanism for stamping the blank to the desired shape, said holding mechanism
being operated by the stamping mechanism, substantially as described.
2. In a can-body machine, the combination of mechanism for engaging and
holding the blank, vertically reciprocating die-mechanism for stamping the body
and edges of blank into the desired shape, folding-mechanism for forming the
blank into the body, bumping-mechanism for forming the body-seam, mechanism
for fluxing the seam; and mechanism for soldering the seam, substantially as
described.
3. In a die-stamping mechanism, the combination, with the vertically recip-
rocating movable dies and the stationary dies, of a vertically reciprocating
yielding holding-block carried by the movable die-holder and a stationary block
between the stationary dies, said two blocks being adapted to clamp the blank
between them in advance of the movable dies and hold it during the stamping
operation, substantially as described.
4. In a die-stamping mechanism, the combination, with the vertically recipro-
cating movable dies and the stationary dies, of a vertically reciprocating holding-
block carried by the movable dies and between the same, spring mechanism for
holding said block normally in advance of the movable dies and a stationary
block between the stationary dies, said two blocks adapted to clamp the blank
between them in advance of the movable dies and hold it during the stamping
operation, substantially as tlescribed.
5. In a can-body machine, the combination, with the blank-folding wings and
the folding horn, of a lever for operating said wings, said lever being connected
with its driving-mechanism by a yielding connection, substantially as described.
6. In a can-body machine, the combination, with the folding horn and folding
wings, of mechanism for operating the wings, one of said wings moving in
advance of the other and being yieldingly connected with its actuating
mechanism, whereby, after the advance wing has reached its bearing, its con-
necting mechanism will yield until the other wing reaches its bearing, said
yielding mechanism being adjustable, substantially as described.
7. In a can-body machine, the combination, with the folding horn and folding
wings, of a lever for simultaneously operating said wings, a connecting rod for
each wing extending from said lever to the wing, one of said rods being con-
structed to yield after the wing has come to a bearing to permit the other wing
to come to a bearing, said yielding mechanism being adjustable, substantially as
described.
8. In a can-body machine, the combination, with a folding wing and its
actuating mechanism, of a connecting rod between said actuating mechanism
and the wing, said rod formed in two parts adapted to move with respect to each
other, a spring for keeping the parts normally in an extended position and an
adjustable stop for limiting the contracting movement, substantially as described.
9. In a can-body machine, the combination, with a folding wing and its

page_text: actuating mechanism, of a connecting rod formed in two parts adapted to move
with respect to each other, a spring for keeping the parts normally in an
extended position and an adjustable stop for regulating the normal length, sub-
stantially as described.
10. In a can-body machine, the combination, with a folding wing and its
actuating mechanism, of a connecting rod formed in two parts adapted to move
with respect to each other, a spring for keeping the parts normally in an
extended position, and adjustable stops for limiting the play of the parts in both
directions, substantially as described.
11. The combination, with the wing F10 and lever F, of the rod f³, spring f',
fitting fand nuts f³, f6 substantially as described.
12. In a can-body machine, a body-forming horn provided with mechanism for
reciprocating it bodily vertically, substantially as described.
13. In a can-body machine, a vertically reciprocating head carrying the stamp-
ing dies, carrying a yielding holding-block for clamping the blank during the
stamping operation, and carrying also the bumping-mechanism, substantially as
described..
14. In a can-body machine, a vertically reciprocating head carrying the stamp-
ing dies and carrying also the bumping mechanism, a pitman connecting said
head with its actuating shaft, said pitman connected with the head by a ball-
and-socket joint, substantially as described.
15. In a can-body machine, a vertically reciprocating head carrying the stamp-
ing dies and carrying also the bumping-mechanism, said head being connected
with its actuating shaft by an adjustable pitman, substantially as described.
16. In a can-body machine, the combination of the forming horn capable of
vertical reciprocation and a vertically reciprocating head carrying the stamping
dies and carrying also the bumping-mechanism, substantially as described.
17. In a can-body machine, the combination, with a stationary block, of the
forming horn located above said block and mechanism for reciprocating said horn
bodily vertically, substantially as described.
18. In a can-body machine, the combination, with the forming horn and
mechanism for feeding the blank below the horn, of a friction device located
below the blank and below the horn and adapted to force the blank against the
horn, and retard the movement of the same, substantially as described.
19. In a can-body machine, the combination, with the forming horn and
mechanism for feeding the blank to a point below the horn, of a spring-impelled
retarding pin below the horn, adapted to bear upon the blank as it is fed between
the horn and block, substantially as described.
20. In a can-body machine, the combination, with the vertically movable form-
ing horn and a stationary block below the same, of a friction device for steadying
and retarding the blank as it is fed between the horn and the block, said friction
device being adapted to bear upward against the blank, substantially as
described.
21. In a can-body machine, the combination, with the bumper and its carrying
block, of a wedge between the bumper and the block for regulating the vertical
adjustment of the bumper, substantially as described.
22. In a can-body machine, the combination, with a non-reciprocating inter-
mittently operating endless carrier, of a continuously operating carrier adapted to
pick up the can-bodies after they have left the intermittent carrier, substantially
as described.
23. The combination, with the carrier-mechanism and mechanism for inter-
mittently driving the same, of mechanism for giving said carrier a slight back-
ward movement after it has come to a stop in its normal forward movement,
substantially as described.
24. The combination, with an endless chain-carrier and mechanism for inter-
mittently driving the same, of mechanism for giving said carrier a slight backward

page_text: movement after it has come to a stop in its normal forward movement, substan-
tially as described.
25. The combination, with an endless chain-carrier, of a pawl and ratchet
engagement for operating the same, said pawl after it has driven the chain for-
ward being adapted to retract the chain slightly before disengaging from the
ratchet substantially as described.
26. The combination, with the endless chain-carrier, of a pawl-and-ratchet
engagement for intermittently actuating the same, the notches in the ratchet and
the ends of the actuating pawl being angularly shaped so that, when the pawl
has driven the ratchet forward and starts on its backward movement, it will draw
the ratchet back slightly, and another pawl for limiting the backward movement
of the ratchet, substantially as described.
27. In a can-body machine, the combination, with the carrier-mechanism and
the forming horn, of pivoted yielding gauge-fingers adjacent to the horn, adapted
to yield laterally, against which the blank strikes and is guided, substantially as
described.
28. In a can-body machine, the combination, with a soldering horn over which
the cans are carried, of a soldering-iron and a soldering-pot, located in advance
of the iron, and engaged to and supported by said iron, said pot being provided
with an opening in the bottom through which the solder is fed, substantially as
described.
29. In a can-body machine, the combination, with a series of soldering-irons
arranged in line above a soldering horn along which the can-bodies are moved, of
a soldering-pot located in advance of the soldering-irons, heating apparatus for
heating the irons and pot and solder-feeding mechanism for feeding. the solder
into the pot, substantially as described.
30. In a soldering-machine, the combination, with a soldering horn over which
the cans are carried, of a soldering-iron located above said horn and normally
resting thereon and carried thereby and mechanism for sliding said can along
said horn under said irons, substantially as described.
31. In a soldering-mechanism, the combination, with the horn over which the
cans are carried, of a wiper pivoted above said horn and normally resting thereon,
and supported thereby and mechanism for carrying the can along said horn under
said wiper, substantially as described.
32. In a soldering-mechanism, a wiper made of a block of metal pivoted above
the soldering-iron and resting thereon and adapted to bear down upon the can,
substantially as described.
33. In a soldering-machine, a wiper made of a block of metal formed concave
on its under side to fit the convex surface of the can to be wiped, said block
being pivoted above the soldering-horn and resting thereon and adapted to bear
upon the can, substantially as described.
34. In a soldering-mechanism, the combination, with a soldering-horn, a
metallic wiper pivoted above said horn and normally resting thereon and of suffi-
cient weight to give sufficient pressure by gravity and mechanism for sliding the
can along the horn under the wiper, substantially as described.
35. In a soldering-mechanism, a fluxing device consisting of a flux-vat, a
fluxing strip mounted upon an oscillating or rocking arm and mechanism for
oscillating said arm upon its pivot to carry the fluxing strip alternately to the
vat and to the can, substantially as described.
36. In a soldering mechanism, the combination, with the flux-vat, the fluxing-
strip mounted upon an oscillating or rocking arm, and mechanism for oscillating
said arm upon its pivot, of means for maintaining said fluxing strip always in
the same relative vertical position, substantially as described.
37. The combination, with the flux-vat and the fluxing-strip mounted on a
rocker-arm, of a sprocket-chain passed over a stationary sprocket-wheel at one end
and over a sprocket-wheel on the supporting shaft of the fluxing strip at the
other end, substantially as described.

page_text: 38. The combination of a forming horn and a can-body formed around the
same and contiguous to the periphery thereof, said body having an excess of metal
therein, and bumping-mechanism whereby, when the body is bumped, the
diameter thereof will be enlarged to permit it to be removed from the horn, sub-
stantially as described.
39. The combination of a solid forming horn and a can-body formed around
the same and contiguous to the periphery thereof, said body having an excess of
metal therein and bumping-mechanism whereby, when the body is bumped, the
diameter thereof is enlarged, substantially as described.
40. The combination of a forming horn and a can-body formed around
the same and contiguous to the periphery thereof, said body having a bead or
excess of metal and bumping-mechanism for taking out said bead and thereby
enlarging the diameter of the body, substantially as described.
41. In a can-body machine, the combination, with the forming horn, of a
bumper for locking the seam, and located above the forming horn, said bumper
being made vertically adjustable substantially as described.
Dated the ovum uay or revrua),
D. YOUNG & Co.
11 and 12, Southampton Buildings, London, W.C.
Agents for the Applicant.