A New or Improved Soldering Table or Soldering Pan.
Year: 1896

page_text: Date of Application, 4th Mar., 1896
Complete Specification Left, 5th Sept., 1896-Accepted, 24th Dec., 1896
PROVISIONAL SPECIFICATION.
A New or Improved Soldering Table or Soldering Pan.
We, ELKINGTON & CO. LIMITED, of Newhall Street, Birmingham, in the
County of Warwick, Silversmiths and Electro Platers and HENRY THOMAS
FELLOWS, of Shirley Road, Acock's Green, in the County of Worcester, Manager
of Works, do hereby declare the nature of this invention to be as follows:-
The said invention consists of the soldering table or pan hereinafter described
for facilitating the soldering of rims to flat or shallow articles or vessels such
for example as the rims of German silver trays to the flat portion or body of
the tray.
We will describe the said invention in connection with the soldering of the rim
of a German silver tray to the body of the tray.
In the ordinary method of effecting the said soldering. a gas and air blow pipe
is employed, the whole of the disc or sheet of metal constituting the bottom or
body of the tray being heated by the flame of the blow pipe before the flame is
directed on the rim to be soldered to the body of the tray. In, this, the ordinary
method of soldering there is great waste of gas the greater part of the gas used
effecting only the preliminary heating of the body of the tray. By the said
invention a large saving of saving of gas is effected.
In constructing a soldering table or pan according to the said invention, we
take a circular shallow metallic dish or pau, preferably of iron, which we mount
upon a stand the said dish or pan being capable of a rotary motion on the said
stand. The vertical shaft of the said stand consists of two concentric tubes the
inner one being much smaller in diameter than the outer one so that there is
considerable space between the said tubes. The lower ends of the said tubes
are connected respectively with stop cocks through which air under pressure may
be supplied. The smaller inner tube terminates in the centre of the pan in a small
rose jet. The outer tube communicates with a tubular ring in the interior of the pan
which ring has a diameter preferably about one half that of the pan. The said
ring has a series of small jet holes made in it through which air under pressure
may be delivered. The ring described is fixed to the interior of the pan and
rotates with it.
In using the said new or improved soldering table or soldering pan, ignited coke
or charcoal is introduced into the said pan and the body of the tray is placed upon
the said pan. Compressed air is passed through the tubular stand by which air
the combustion of the coke or charcoal is maintained and the body of the tray is
rapidly raised to the temperature at which the rim may be soldered to it. The
blow pipe being ignited, its flame is applied to the edges of the parts in contact
and by a slow rotation of the pan or table all portions of the edges to be soldered
are in succession brought under the action of the blow pipe.
Although for articles of moderate size only a central jet and one ring of jets are
sufficient yet where large articles are to be soldered the pan may have two or three
concentric jets. Where small articles are to be soldered the central rose jet alone
may be used. It will be understood that the central rose jet and each of the ring
jets, where more than one is employed, has a separate supply of air.
The vertical shaft of the said stand has a number of passages equal to the

page_text: number of jets and each passage has a stopcock for turning on, shutting off and
regulating the current of compressed air passing through it.
Dated this 4th day of March 1896
W. T. WHITEMAN,
Agent for the Applicants.
We ELKINGTON & Co. LIMITED, of Newhall Street, Birmingham in the
County of Warwick, Silversmiths and Electro Platers, and HENRY THOMAS
FELLOWS. of Shirley Road, Acock's Green, in the County of Worcester,
Manager of Works, do hereby declare the nature of the said invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
The said invention consists of the soldering table or pan hereinafter describe
for facilitating the soldering of rims to flat or shallow articles or vessels such
for example as the rims of German silver trays, to the flat portion or body of
the tray.
We will describe the said invention in connection with the soldering of the rim
of a German silver tray to the body of the tray, but the said invention as herein-
after pointed out may be used for soldering together the parts of various metallic
articles.
In the ordinary method of effecting the said soldering, a gas and air blow pipe is
employed, the whole of the disc or sheet of metal constituting the bottom or body
of the tray being heated by the flame of the blow pipe before the flame is directed
on the rim to be soldered to the body of the tray. In this, the ordinary method
of soldering there is great waste of gas, the greater part of the gas used effecting
only the preliminary heating of the body of the tray. By the said invention a
large saving of gas is effected.
In constructing a soldering table or pan according to the said invention we take
a circular shallow metallic dish or pan, preferably of iron, which we mount upon a
stand, the said dish or pan being capable of a rotary motion on the said stand.
The vertical shaft of the said stand consists of two concentric tubes the inner one
being much smaller in diameter than the outer one so that there is considerable
space between the said tubes. The lower ends of the said tubes are connected
respectively with stop cocks through which air under pressure may be supplied.
The smaller inner tube terminates in the centre of the pan in a small rose jet.
The outer tube communicates with a tubular ring in the interior of the pan which
ring has a diameter preferably about one half that of the pan. The said ring has
a series of small jet holes made in it through which air under pressure may be
delivered. The ring described is fixed to the interior of the pan and rotates
with it.
In using the said new or improved soldering table or soldering pan, ignited coke
or charcoal is introduced into the said pan and the body of the tray is placed upon
the said pan. Compressed air is passed through the tubular stand by which air
the combustion of the coke or charcoal is maintained and the body of the tray is
rapidly raised to the temperature at which the rim may be soldered to it. The
ordinary blow pipe being ignited, its flame is applied to the edges of the parts in
contact and by a slow rotation of the pan or table all portions of the edges to be
soldered are in succession brought under the action of the blow pipe.
Although for articles of moderate size only a central jet and one ring of jets are
sufficient yet where large articles are to be soldered the pan may have two

page_text: or three concentric jets. Where small articles are to be soldered the central rose
jet alone may be used. It will be understood that the central rose jet and each of
the ring jets, where more than one is employed has a separate supply of air.
The vertical shaft of the said stand has a number of passages equal to the
number of jets and each passage has a stopcock for turning on, shutting off and
regulating the current of compressed air passing through it.
Figure 1 of the accompanying drawings represents in elevation, Figure 2 in plan
and Figure 3 in vertical section, a soldering table or soldering pan constructed
according to one arrangement of the said invention, the said table or pan being
particularly useful for the soldering of the parts of small articles such for example
as the parts of German silver trays and the like.
Figures 4, 5, 6 and 7 represent a soldering table or soldering pan constructed
according to another arrangement of the said invention and Figures 8 and 9
represent parts of the said table detached.
The same letters of reference indicate the same parts in the several figures of
the drawings.
We will first describe the soldering table or soldering pan Figures 1, 2 and 3.
a is the hollow vertical pillar of the base or stand a on which vertical pillar a
the metallic dish, pan or hearth b, for receiving the ignited coke or charcoal, is
mounted so as to be capable of a rotary motion. The dish, pan or hearth b has an
axial tubular part 62 connected to a nearly hemi-spherical tubular part or block b
working on a second block a fixed on the top of the pillar a. The bearing block b
is kept in position on the block a³ by an inverted cup a screwed on the said
block a³. It will thus be seen that when the pan or hearth b is turned the bearing
block rotates on the block a³ and within the inverted cup a¹.
It will be seen by reference to the drawings that the tubular part 6 of the rotary,
pan or hearth b virtually constitutes a continuation or prolongation of the hollow
pillar a of the stand.
To the top of the tubular part 62 of the pan or hearth b the ring c having the
series of holes or jets c', c¹ is connected by the crossing tube c and T joint c³ as will
be best understood by reference to Figures 2 and 3 so that the said ring jets rotate
with the pan or hearth b.
In the vertical pillar a is a smaller fixed concentric tube d surmounted by a rose
jet d. The vertical hollow pillar a and concentric inner tube d constitute the
air passages for the supply of air under pressure to the ring jet c and rose
jet d2 respectively, the said air passages being controlled by stopcocks marked
respectively e, f in connection with side tuhes or passages e, f
In using the soldering table or pan Figures 1, 2 and 3, the ignited coke or
charcoal is introduced into the pan or hearth b and the article to be soldered is
placed on the said ignited coke or charcoal. The combustion of the coke or
charcoal is maintained by a blast of, air admitted through the stopcock e, or the
stopcock, or through both, and directed into the fuel by the jets c, d within the
pan or hearth and the article or articles to be soldered are gradually raised to
the temperature at which the soldering may be effected. The ordinary blow pipe
is ignited and its flame directed on to the article for the purpose of soldering
the same, the pan or hearth 6 being at the same time rotated in one or other
direction so as to facilitate the application of the blow pipe flame to all the parts
of the article under operation.
For the soldering of series or sets of articles and for hard soldering commonly
called brazing the frames and other parts of velocipedes, we prefer to employ a large
table in the form of an annular metal trough or casing divided by fire brick boxes
into a series of compartments, each compartment being used for a set of articles or
for the frame of a velocipede.
This arrangement is represented drawn to a small scale in elevation in Figure 4;
plan in Figure 5; in vertical section (on the line a, a Figure 5) in Figure 6 and
in horizontal section in Ligure 7; Figures 8 and 9 represent parts of the said
table detached.

page_text: The tubular stand a is essentially the same as that represented in Figures 1, 2
and 3 excepting that only one air passage a, 62 is provided, from which radiate
arms d', d', d', d terminating in curved perforated or jet pipes h, h leading to the
adjacent pairs of boxes i, i filling the rotary trough 6 mounted on the stand a
(see Figures 5, 6 and 7). Each radiating arm d' is provided with a stopcock for
shutting off, or turning on and regulating the supply of compressed air to the fuel
in the compartments or boxes i, i. Each compartment or box i is filled with ignited
coke or charcoal as will be seen by reference to the sectional view Figure 8 and
the articles to be soldered or brazed are placed upon the burning charcoal and are
thereby raised to the required temperature.
When the soldering table is to be used for hard soldering or brazing the parts of
cycle frames, props (see Figures 4 and 8) taking into tubular sockets on the
inner side of the trough b are employed to support the frame upon the burning
coke.
The table is preferably supported upon ball bearings as represented in Figures 6
and 9 to facilitate the turning of the table when in use.
By the use of a soldering table of the kind represented in Figures 4, 5, 6, 7, 8
and 9, the soldering or brazing of articles may be very rapidly effected. The
workman who effects the soldering or brazing is stationed say at the point A, while
assistants are stationed at the points B, C, D. While the workman is engaged in
the soldering of articles by the aid of the blowpipe on the pair of hearths i, i near
him, the assistant at B is removing soldered articles from the pair of hearths
presented to him. At the same time the assistant at C is engaged in placing
articles to be soldered on the unoccupied pair of hearths near him. During the
intermittent or partial rotation of the table the coke or charcoal in the hearths or
compartments during their passage from B to D is maintained in a state of low
combustion by partially turning off the supply of compressed air, but when they
arrive at D the assistant at that part of the table turns on the full supply of air so
that the articles may be raised to the temperature at which the soldering may
be effected by the aid of the blow pipe by the time the said articles reach the
point A.
Where annular or ring like bodies of large size are to be soldered or brazed we
employ a table of the kind represented in Figures 4, 5, 6 and 7 except that the trough
is not divided in the way described and represented in the said figures and one or
more concentric ring jets of the kind shown in Figures 1, 2 and 3 are substituted
for the radiating pipes d', d¹ and curved pipe jets h, h represented in
Figures 4, 5, 6 and 7.
It will be understood from the description herein before given that the objects in
the several arrangements hereinbefore described and represented are the same
namely to maintain the combustion of the coke or charcoal in the rotary pan or
hearth by a bottom blast the rotation of the pan or hearth permitting the several
articles or parts of the article on the said pan or hearth being readily brought
under the action of the blow pipe; thus the time usually occupied in raising the
coke or charcoal to a proper state of combustion by directing the flame of the blow
pipe thereon prior to directing the flame of the blow pipe on the article to be
soldered or brazed is saved and the great waste of gas which results in the ordinary
method avoided.
Although we have described and represented the axial air supply pipe of the
rotating pan or hearth as the vertical pillar of the stand or foot yet we wish it to
be understood that the axial air supply pipe and pan or hearth may be supported
by an independent stand or be supported against a work table or bench.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that we claim
as the said invention;-
The new or improved soldering table or soldering pan hereinbefore described
and illustrated in the accompanying drawings, the said soldering table or pan

page_text: consisting of a rotating pan, table or hearth or of a rotating divided or undivided
annular trough or hearth or series of hearths for receiving ignited coke or charcoal,
to which rotating table, hearth or trough, compressed air is supplied through rose,
ring or other jets to the ignited coke or charcoal in the table, hearth or trough for
maintaining the combustion of the coke or charcoal substantially as described and.
illustrated.
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ELKINGTON & CO., LIMITED,
FREDERICK ELKINGTON } Directors..
JAMES B. ELKINGTON
ROBERT SMITH, Secretary.