Improvements in Can-soldering Machines.
Year: 1899

page_text: Date of Application, 29th July, 1899-Accepted, 23rd Dec., 1899
[Communicated from abroad by JAMES L. BOARD, of Chicago, Illinois, United
States of America, Manufacturer.]
Improvements in Can-soldering Machines.
I, DAVID YOUNG, Chartered Patent Agent, of the Firm of D. Young & Co.,
11 & 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 soldering machine of that
class known as "floating" soldering machines, that is, a machine wherein the can
is pushed or rolled through the successive operations necessary to solder the
ends on to the body.
In the drawings:
Figures 1, 2 and 3 coupled together represent a side elevation of the entire
machine.
Figure 4, is a vertical section on the line 44 of Figure 1.
Figure 5, is a vertical section on the line 55 of Figure 2.
Figure 6, is a horizontal section looking from above on the line 6-6 of
Figure 2.
Figure 7, is an enlarged cross section of the soldering vat on the line 7-7 of
Figure 6.
:
Figure 8, is an enlarged detail of the rack bar.
In carrying out the invention A-A-A2 A3 and A* represent suitable carrying
frames or arches preferably made of tee-iron as shown. From these arches or
frames the various parts of the machine are sustained. Journaled in suitable
brackets A5 extending from the frame A, is a shaft B carrying a sprocket wheel B'.
On the same shaft B is a gear wheel B2 and meshing therewith is a pinion B³
on a counter shaft, the latter also carrying the band wheel B' which drives the
machine. On the opposite end of the machine and journaled in the brackets B5
(Fig. 3) is another shaft Be carrying another sprocket wheel B'. Passing around
these two sprocket wheels B and B is a sprocket chain made up in cross section
substantially as shown in Figures 4 and 5, each link consisting of a main portion C
with anti-friction wheels C and a horizontally projecting arm C2. Journaled on
the arm C so as to readily revolve is a sleeve carrying a roller C3 and a pinion C
and at certain points in the operation the pinion C on the arm C² engages with
the rack bar and thus revolves the roller C3. The several links are pivoted
together so that when the sprocket wheel B¹ is revolved, the entire conveying
apparatus moves. In order that the invention may be clearly understood, I will
describe the movements of the can and describe the mechanism in detail as each
particular set is reached. Referring to Figure 1, the can is fed through a
chute D into the machine between two of the arms of the chain. It rolls
down the strip D₁ to the fluxing vat E. This vat is shown in detail in Figure 4.
It is made up of a piece of angle iron El having a groove E2. The edge of the
can rolls in this piece of angle iron with the seam between the can body and
can end rolling in the groove E². The other end of the can is supported by the
strips E3 E. Supported by the bracket E5 (Fig. 1) is a vessel Eº containing the

page_text: liquid flux. A pipe
controlled by a valve Es leads therefrom down to a point
below the strip E and up through the bottom of the same so that the flux is fed
in the groove E. At a point adjacent to the end of the flux vat E and under-
neath the same is another receptacle E with an orifice in the bottom of the vat E
so that the flux can drop back into the receptacle E. The end of the vat E beyond
the orifice is inclined upward slightly as shown at E10 (Fig. 1) so that any flux carried
beyond by the rolling can, will run back. The can now reaches the solder vat F
(Fig. 2). This vat is shown in cross section in Figs. 5 and 7. There is the receptacle
proper F (Fig. 7) with a strip F2 bolted thereto to receive and support the end
of the can, this strip having a downward projection f, which extends into the
solder. This strip is adjustable horizontally. On the vat proper is another
projection f, which supports the side of the can immediately above the seam to be
soldered. It will be observed by reference to Figure 7 that the projection f
extends down into the solder bath and protects the entire end of the can. Between
the point of the projection and the face of the projection f¹ is thus left a small
space which is filled with a bead of the solder. As the can rolls along the seam
between the body and the end of the can, it rides in tnis bead of solder and
picks up the desired quantity. The upper end of the can is supported by the
strips FF (Fig. 5). Referring again to Figs. 5, 6 and 7, it will be observed
that the solder vat at one point is enlarged or extended to form the auxiliary
vat F5. The bottom of the vat F5 is at a slightly lower level than the bottom of
the vat F. Pivoted from the walls of the vat F is what I will term a dipper G.
Pivoted to this dipper is a rod G₁ (Fig. 5) which extends down to a crank arm G2
on the shaft G. This shaft G3 is oscillated by means of the rod G pivoted to the
arm G and eccentrically pivoted to the disc G6 on the shaft B so that as the
shaft B revolves the rod G is reciprocated and tilts the dipper G and the latter
picks up the solder in the vat F and allows it to run into the vat F
orifice through the partition f³ maintains the solder in the vat F¹ at exactly
the height desired. In order that the solder may flow freely and not bank up
or clog the orifice f³, I provide a copper or soft metal tube coated with tin so that
the solder passes through a tinned surface. As the can rolls along through the
vat F the seam between the can body and the can end rides in the solder as shown
in Figure and picks up a bead of it as previously described. The solder vat is
of course heated from any suitable source as for instance by the burners F6
(Fig. 2). When the can reaches the end of the solder vat, the strip F3 is turned
up as shown at F7 (Fig. 2) and throws the can to the vertical position and on to the
plate H. This plate is perforated and suitably heated from the pipe H¹. The hot
air comes up through the orifices in the plate H and melting the solder that has
adhered to the same, causes the solder to run into the seam and fill the same. The
can is then pushed along on end until it reaches the end of the plate H and
thence along a suitable slide until it reaches the sprocket wheel B. It then rides
between the strips J-J and is carried around the sprocket wheel. This action of
course reverses the position of the can and brings the unsoldered end beneath.
The can is then carried through exactly the same operations as those just described
and when it reaches the end of the machine adjacent to the sprocket wheel B¹ both
ends have been effectively soldered. The can is then discharged through the
chute K. Suitably sustained from the main frame of the machine in the path of
the pinions C is a rack bar C. This rack bar is located adjacent to the fluxing
vats and also adjacent to the soldering vats. As the can is pushed along and
reaches the rack bars, the pinion engages therewith and the roller C³ is thus
revolved and bearing against the side of the can allows it to revolve the can and
prevents the latter from sliding rather than rolling.
An
Having now particularly described and ascertained the nature of the 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. Jn a can-soldering machine. a fluxing-vat through which the can is rolled

page_text: and means for admitting a continuous stream of flux through the vat, substantially
as described.
2. In a can-soldering machine, a fluxing-vat made up of a piece of angle-iron
in which the end of the can rolls, a groove in the bottom of the said vat, a recep-
tacle above the vat with means for admitting a continuous stream of flux into the
vat and a receptacle to receive the flux at the discharge end of the vat, sub-
stantially as described.
3. In a can soldering-machine, a fluxing-vat through which the can is rolled,
provided with means for admitting a continuous stream of flux to the vat, the
bottom of the said vat being provided with a discharge-orifice and the end of the
vat inclined slightly upward beyond the orifice, substantially as described.
4. In a can-soldering machine, a soldering-vat through which the can is
rolled, consisting of a vat proper and two projections or plates, one for supporting
the end of the can and extending into the surface of the solder and the other
for supporting the side of the can, the edge of the can being adapted to roll at a
higher level than the edge of the end supporting plate which projects into the
solder, said supporting plates having their edges a distance apart to allow the
solder to reach the can-seam, substantially as described.
5. In a can-soldering machine, the combination with ways along which the can
is rolled, of pusher-arms extending horizontally behind each can, each of said
arms being provided with an anti-friction roller, a stationary rack-bar adjacent
to the path of each arm and a pinion connected with the roller and adapted to
engage the rack bar, substantially as described.
6. In a can-soldering machine, a soldering vat and an auxiliary vat adjacent
thereto, a partition between the two and a discharge-orifice between the two, said
orifice having its surface tinned, substantially as described.
7. In a can-soldering machine, a solder-vat and an auxiliary vat adjacent
thereto, a partition between the two and a discharge-orifice between the two, said´
orifice having a soft metal lining coated with tin, substantially as described.
Dated this 20th dox of |11|77|XM
D. YOUNG & Co.,
11 & 12, Southampton Buildings, London, W.C.,
Agents for the Applicant.