Improvements in Machines for Drying and Fluxing Sheets of Iron or Steel Preparatory to Tinning the same.
Year: 1892

page_text: Date of Application, 20th Dec., 1892-Accepted, 28th Jan., 1893
COMEDIE DI MOITICATION.
Improvements in Machines for Drying and Fluxing Sheets of Iron
or Steel Preparatory to Tinning the same.
We, EDWIN NORTON and JOHN GEORGE HODGSON of Maywood, in the
County of Cook in the State of Illinois, United States of America, Manufacturers,
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 :-
Our invention relates to an improved machine for simultaneously drying and
fluxing pickled sheets of iron or steel preparatory to coating the same with tin or
other metal.
Heretofore in the process of manufacturing tin plates by what is commonly
known as the "palm oil" process after the iron or steel sheets have been pickled in
a bath of dilute sulphuric acid to remove the scale or oxidation therefrom, the
sheets are immersed in a bath of clean water to protect them from oxidation.
From this water bath the sheets are taken one by one and while still wet immersed
immediately in a bath of hot palm oil by which the moisture is evaporated from
the wet sheet and the sheet fluxed or coated with oil. The temperature of the oil
in this oil pot is necessarily kept comparatively low to prevent the steam generated
from the wet sheet causing the oil to boil violently over, and, even at such low
temperature great difficulty and waste is experienced in practical operation from
the oil boiling over and taking fire.
The object of our invention is to provide a machine by which the wet sheets as
they come from the water bath may be quickly dried, coated with flux and heated
to the proper temperature to produce the best results when they are placed in the
molten metal or the pot containing the molten tin covered with oil.
To this end a machine embodying our invention comprises, preferably, three
pair of revolving hollow metal rolls heated by steam admitted to their interior, a
steam jacketed oil pot divided into three partitions or troughs, two or more of
which are filled with hot palm oil and in which the lower rollers of two or more of
said pairs revolve, so that the same are continually coated with oil, a feed table
from which the sheets are fed between the first pair of rollers and by the heat of
which the moisture is chiefly evaporated from the sheet before passing to the
succeeding rolls which are supplied with oil and by which the sheet is further
heated and simultaneously fluxed or coated with oil and every trace of the moisture
driven off so that when the sheets, thus dried, fluxed and heated, are delivered from
the machine and placed into the bath of molten tin covered with palm oil, they will
cause no agitation or boiling over of the oil in the tin pot.
Our invention further consists in the novel devices and novel combinations of
parts and devices herein shown and described, and more particularly pointed out in
the claims.
In the accompanying drawing, which forms a part of this Specification, and in
which similar letters of reference indicate like parts,
Fig. 1 is a side elevation of a machine embodying our invention;
Fig. 2 is a central vertical longitudinal section, and Fig. 3 is a section on line 3-3
of Figure 2.
Fig. 4 is a perspective view of the feed table.
In said drawing A represents the frame which may be of any suitable con-
struction. B is the steam heated oil pot or vessel divided by hollow partitions 6 6
into three compartments or parallel troughs B₁ B' B³. The three parallel
troughs B' B B are heated by steam admitted into the hollow partitions b
and b¹ from the steam pipe C through the separate branches c c', each of which

page_text: is provided with a separate valve to regulate the temperature of the oil or
flux in the several troughs or compartments of the vessel B. The oil or flux
vessel is likewise furnished with a discharge trough or.compartment B* separated
from the first trough B¹ by a partition b³.
The partition between the first trough B₁ and the next trough or compart-
ment B is furnished with an upright extension 6* considerably higher than the
tops of the troughs, and preferably extending up to about the level of the center
of the lower rolls D. The purpose of this extension is to prevent the foaming
and boiling oil in the first trough B₁ from rising and foaming over into the next
trough B²
The water dripping from the wet plates and the steam generated
by the first pair of rolls and carried down by the rolls into the hot oil will
cause the oil in the first trough to foam and boil, and this extension serves to
prevent boiling over into the trough B'. The oil in the last trough B³ will
remain entirely placid, as all moisture is freed from the sheet before it reaches
the last pair of rolls so that no moisture or steam can be communicated to the
oil in the last trough B. The oil in this last trough can, therefore, be and is
heated to the requisite high temperature to produce the most complete and perfect
fluxing of the sheet and also to raise the temperature of the sheet itself to the
required point to produce the best results when it is subsequently immersed in the
tin pot. The last pair of rolls and the last oil trough B³ may thus be, and in
practice are, heated to a much higher temperature than the first pair of rolls and
the first trough B', the middle pair of rolls and trough being heated to an inter-
mediate degree.
Each of the compartments B' Bº B³is furnished with an outlet 6* closed by a
plug be, so that the oil may be drawn out when desired.
Ď D', D D', D D1 are three pair of hollow steam heated smooth metallic rolls,
journaled in suitable bearings F F¹ which are mounted on the frame of the machine
in suitable vertical guides F, so that the upper bearing F¹ of each pair of rolls
may be free to move up and down in said guides.
The three pair of rolls D D', D D', D°D' are mounted directly over the three
oil troughs or compartments B₁ B B³, and the lower roll D is immersed for a
fraction of its circumference, preferably about one-fourth thereof, in the oil or flux
in said troughs.
The bearing or journal F1 of the upper roll of each pair is separated from the
lower journal F, upon which it rests, by an adjusting screw so that the rolls may
be set parallel to each other and the space between them adjusted so as to admit
of the passage of the sheet between the rolls, and at the same time permit the
rolls to come close enough together after the sheet has passed to practically transfer
the flux or oil from the lower roll to the upper one and thus supply the oil to both
sides of the sheet and thoroughly coat both sides thereof therewith. To permit
this slight up and down movement of the upper roll of each pair and at the same
time keep the requisite pressure between the rolls, we provide the cap-plate F³ of
the journal guide with adjustable screws which acts against a spring that
bears upon the journal box F¹. By this means the rolls may be allowed to come
together, or nearly together, when there is no sheet passing between them and thus
cause the lower roll to transfer the oil to the upper one and then yield sufficiently
to allow the sheet to pass between them.
The rolls D D' are all hollow and heated by steam admitted to each pair from
the steam pipe C through separate branch pipes c c c each furnished with separate
regulating valves c', so that the temperature of each pair of rolls may be governed
as required.
E is the feed table, about on a level with the meeting surface of the rolls D D',
from which the sheets are fed into the first pair of rolls: E' is the discharge table
preferably arranged at an incline and furnished with a sheet delivery roll E³ at its
inner edge.
"
G is the, oil feed or supply tank from which, through a feed pipe or nozzle y
furnished with a regulating valve g¹, the oil is fed or supplied to the troughs B B³

page_text: in a regular manner so as to keep the same full and the rollers DD
therein to a regular and uniform depth. This oil feed tank has a steam jacket g'
for heating the same by steam admitted through the branch pipe c8, the same being
furnished with a valve to regulate the temperature.
His the drip pan or tank supported on the frame A below the oil pot B, the
same being large or wide enough to catch the drippings from every part of the
machine. It is furnished with a well H' from which leads a pipe to a pump K,
which forces the oil up into the supply tank G through the connecting pipe k.
The pump K is operated by pitman rod K' connected to a crank pin n on the gear N
on the driving shaft N¹.
The rolls D D are driven from the driving shaft through a set of connecting
gearing N N N', the gears N' being on the lower rolls, the gears N³ on the upper
rolls, and the gears N on intermediate shafts No.
The discharge compartment B of the oil pot B is furnished with an outlet 67
provided with a valve or nozzle 68 through which the oil may flow into the drip
pan below.
The feed tank G is from time to time supplied with oil to replace that adhering
to the sheets passing through the machine, or if preferred the fresh oil may be put
in the drip pan H. By means of this tank and its feed valve, we automatically
keep the troughs B1 B2 B3 supplied with oil.
In operation, the wet sheets as they come from the water bath are fed between
the several pairs of rollers D D₁ whereby the same are simultaneously dried,
heated and fluxed, the sheets passing out onto the delivery table E¹ with every
particle of moisture driven therefrom, heated and fluxed and ready to be placed in
the tinning or metal coating bath. By means of the steam regulating valves and
the separate branch pipes leading to the several pairs of rollers, the first pair of
rolls and the oil in the first trough B₁ may be kept at a comparatively low
temperature so that the moisture and steam produced from the wet sheets will not
cause too violent foaming and boiling of the oil. The next succeeding pair of rolls
and the oil trough B' are heated to a higher degree, and the final pair of rollers
and troughs are heated to a still higher temperature, so that the fluxed sheets will
be delivered from the machine in proper condition to enter the tinning bath. The
rolls revolve continuously and at the intervals when no sheet is between the rolls,
the flux or oil will be transferred from the lower roll of each pair to the upper one,
so that the oil or flux will be properly supplied to both sides of the sheet.
During this operation the overhead feed tank continuously supplies or feeds the
oil to the oil troughs, thus maintaining the oil at the proper level, and at the
same time the pump redelivers the oil collected in the well of the drip pan into
be very
the feed tank. By means of this machine the wet pickled sheets may
quickly dried, heated and fluxed without giving any opportunity for the same
to become oxidized or tarnished on either side and without waste of the oil or
flux and without danger of the same getting on fire, the work being also done
automatically and without the necessity of hand labor.
The number of pairs of rolls which we preferably employ is three, as shown in
the drawing, but the number of pairs of rolls may be increased or diminished if
desired.
As the oil in the first trough will be in a boiling, foaming or frothing condition,
owing to the steam and moisture from the wet sheets, it will foam up and come in
contact with the first roll D even though this trough be not full of oil.
As shown in the drawing the oil supply tank G delivers the fresh oil only to the
last two troughs B' B', the single nozzle employed delivering the oil midway
between them on the partition 61. It generally is not necessary to deliver the oil
from the supply tank directly into the first trough B', as some foaming of the oil
in the second trough B will take place, from time to time, in the space 60 between
the second roll D and the extension of the partition b, and boil or foam over said
extension into the trough B' and thus supply said trough with 'oil. The oil does
not foam up over the partition b as the moisture and steam is mostly driven off
+64
137

page_text: from the sheets by the first pair of rolls, and practically all driven off as the sheet
passes the second and still hotter pair of rolls, so that the steam and moisture are
practically confined to the space between the first two pairs of rolls and the space
on the front side of said first pair of rolls.
By employing a series of pairs of graduated heating rolls, that is to say rolls,
each successive pair of which are heated to a higher temperature than the pre-
ceding pair, as the means or instrumentality for drying, heating and fluxing the wet
pickled sheets, said operations are performed simultaneously, or practically simul-
taneously, so that the sheets have not time or opportunity to become tarnished or
oxidized, their surfaces being protected or coated at all times either by the water
or by the oil as they pass through the machine, and we thereby secure, at the same
time, the important result of at once preventing undue foaming, boiling and waste
of the oil and the proper heating and thorough fluxing of the sheet, as the wet sheet
is first operated upon and its water chiefly driven off by the first pair of rolls at a
temperature so low as not to produce violent or undue foaming and boiling of the
oil, and as the sheet, after being further dried and heated by the next pair of rolls
and their hot oil, is then finally heated to the proper degree and thoroughly fluxed
by the last pair of rolls, the temperature of which may be raised to any desired
degree without causing any agitation of the oil in their oil troughs, and the work is
also done automatically.
As the lower heated rolls of each pair revolve directly in the several oil troughs
or compartments, the rolls themselves serve as a means for heating the oil in the
oil troughs and of keeping the oil in the different troughs at the graduated or
different temperatures of the rolls themselves as desired.
The feed table E should be slightly inclined to permit the water to continually
drain from the wet sheet as it is fed to the first pair and enters between them, and
it should also be made of slats or provided with corrugations in or openings through
it to prevent the water from adhering to its surface unnecessarily. The object of
employing an open or corrugated feed table, and the object of inclining the same
are to prevent the sheet from carrying an unnecessary amount of water or moisture
to the first pair of rolls.
By combining with the oil troughs, with drying, heating, and fluxing rolls which
are hollow and heated by steam admitted to their interior, we are enabled not only
to heat the rolls to different degrees of temperature, as desired, but also to prevent
the oil from catching fire and the waste and danger incident thereto.
We prefer to locate the oil feed nozzle g between the pairs of rolls and not to
deliver the oil directly upon the rolls from this feed nozzle, as the oil will be
more evenly distributed over the surface of the roll by transferring from the
But this arrangement may of course be varied if desired. The oil
troughs however are the means which we prefer to employ for supplying or coating
the surface of the rolls with the oil.
lower ones.
.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :
1st. The machine for drying, heating and fluxing pickled sheets of iron or steel
preparatory to tinning or coating the same with metal, consisting in a series of
pairs of hollow heated rolls D D₁, means for heating the rolls to different degrees
of temperature, the last pair to a higher degree than the first pair, and means for
supplying oil flux to the surface of said rolls, said pairs of rolls and the means for
supplying oil flux thereto being so combined and arranged in respect to each other
substantially as shown and described, so that the wet pickled sheets may pass
between the rolls without being immersed in or carried through the hot oil flux,
substantially as specified.
2nd. In a machine for drying, heating and fluxing wet pickled sheets of iron or
steel preparatory to tinning or coating the same with metal, in combination with a
series of pairs of heated rolls D D', means for heating said rolls, the succeeding
ર

page_text: pair to a higher degree than the preceding pair, and oil troughs or compartments,
one for each pair of said rolls, said pairs of rolls and oil troughs being so arranged
and combined that the lower roll only of each pair shall come in contact with the
oil in the trough so that the sheets to be dried, heated and fluxed may pass
between the rolls without being immersed in the oil, substantially as specified.
3rd. In a machine for drying, heating and fluxing wet pickled sheets of iron or
steel preparatory to tinning or coating the same with metal, the combination with
a series of pairs of heated rolls D D, the first pair being at a lower temperature
than the last pair, of oil troughs or compartments for each pair of said rolls, and
means for heating said troughs and compartments and regulating the temperature
thereof, substantially as specified.
4th. In a machine for drying, heating and fluxing wet pickled sheets of iron or
steel preparatory to tinning or coating the same with metal, the combination with
a series of pairs of heated rolls D D, the first pair being at a lower temperature
than the last pair, of oil troughs or compartments for each pair of said rolls, and
means for heating said troughs and compartments and regulating the temperature
thereof, the upper one of each pair of said rolls being movable as to its axis or
shaft to admit of the passage of the sheets between the rolls and the surface of the
rolls to approach each other when the sheets are not passing between them, so
that the oil will be transferred to the upper rolls from the lower rolls, substantially
as specified.
5th. In a machine for drying, heating and fluxing wet pickled sheets of iron or
steel preparatory to tinning or coating the same with metal, the combination with
a series of pairs of beated rolls D D', the first pair being at a lower temperature
than the last pair, of oil troughs or compartments for each pair of said rolls, and
means for heating said troughs and compartments and regulating the temperature
thereof, the upper one of each pair of said rolls being movable as to its axis or
shaft to admit of the passage of the sheets between the rolls and the surface of
the rolls to approach each other when the sheets are not passing between them,
so that the oil will be transferred to the upper rolls from the lower rolls, and springs
and adjusting screws to regulate the pressure between the rolls of each pair,
substantially as specified.
6th. In a machine for drying, heating and fluxing wet pickled sheets of iron or
steel preparatory to tinning or coating the same with metal, the combination with
a series of pairs of heated rolls D D¹, the first pair being at a lower temperature
than the last pair, means for heating said rolls and regulating the temperature
thereof, of oil troughs or compartments for each of said pairs of rolls, and a feed
table E, substantially as specified.
7th. In a machine for drying, heating and fluxing wet pickled sheets of iron
or steel preparatory to tinning or coating the same with metal, the combination with
a series of pairs of heated rolls D D', the first pair being at a lower temperature
than the last pair, of oil troughs or compartments for each pair of said rolls, and a
discharge table E¹, and means for heating said rolls and troughs and regulating the
temperature thereof, substantially as specified.
8th. In a sheet drying, heating and fluxing machine, the combination with a
series of hollow steam heated rolls D D', the first pair of said rolls being at a lower
temperature than said last pair, of a steam heated oil vessel B having separate
troughs or compartments divided by hollow partitions into which steam is admitted
for heating said troughs or compartments, and means for supplying steam to
said hollow rolls and hollow partitions for heating the same, and means for
regulating the temperature of the sets of rolls, substantially as specified.
9th. The combination with hollow steam heated rolls D D', D D', of an oil vessel
having separate troughs or compartments, one for each pair of said rolls separated
by a hollow steam heated partition, and means for supplying steam to said hollow
rolls and hollow partitions for heating the same, substantially as specified.
10th. In a machine for drying, heating and fluxing wet pickled sheets of iron

page_text: or steel preparatory to tinning or coating the same with metal, the combination
with two or more pairs of rolls D D₁ of an oil vessel B having two or more
troughs or compartments separated by a hollow steam heated partition, means for
supplying steam to said hollow partitions, substantially as specified.
11th. The fluxing vessel B divided into separate troughs or compartments B¹ B' B³
by hollow partitions 661 and furnished with a steam pipe C having separate branch
pipes cc leading to said hollow partitions, substantially as specified.
12th. The fluxing vessel B divided into separate troughs or compartments B' B*B*
by hollow partitions and furnished with a steam pipe having separate
branch pipes c c¹ leading to said hollow partitions, said branch pipes being provided
with valves for regulating the heat, substantially as specified.
13th. The combination of oil or fluxing troughs with two or more pairs of
hollow steam heated rolls D D¹ revolving therein, the upper roll of each pair being
movable as to its axis or shaft to permit the sheets to pass between and the
rolls to approach each other when the sheets are not so passing and thus transfer
the oil from the lower roll to the upper one, said upper rolls of each pair having
movable boxes F₁ supported on adjusting screws, means for supplying steam to
said rolls, substantially as specified.
14th. The combination of oil or fluxing troughs with two or more pairs of
hollow steam heated rolls D D' revolving therein, the upper roll of each pair
being movable as to its axis or shaft to permit the sheets to pass between and
the rolls to approach each other when the sheets are not so passing and thus
transfer the oil from the lower roll to the upper one, said upper rolls of each
pair having movable boxes F¹ supported on adjusting screws, and provided with
springs and adjusting screws f', means for supplying steam to said rolls,
substantially as specified.
15th. In a machine for drying, heating and fluxing wet sheets of iron or steel
preparatory to coating the same with metal, the combination with a series of
pairs of steam heated rolls, the first pair being at a lower temperature than the
fast pair, of steam heated oil troughs or compartments for each pair of said rolls,
and means for heating said rolls and oil troughs or compartments and regulating
the temperature thereof, substantially as specified.
16th. In a machine for drying, heating and fluxing wet sheets of iron or steel
preparatory to coating the same with metal, the combination with a series of pairs
of steam heated rolls, the first pair being at a lower temperature than the last
pair, of steam heated oil troughs or compartments for each pair of said rolls, and
an inclined feed table for delivering the sheets to the first pair of said rolls, and
means for heating said rolls and oil troughs or compartments and regulating the
temperature thereof, substantially as specified.
17th. In a machine for drying, heating and fluxing wet sheets of iron or steel
preparatory to coating the same with metal, the combination with a series of pairs
of steam heated rolls, the first pair being at a lower temperature than the last
pair, of steam heated oil troughs or compartments for each pair of said rolls, and
a corrugated or open feed table for delivering the sheets to the first pair of said
rolls, and means for heating said rolls and oil troughs or compartments and
regulating the temperature thereof, substantially as specified.
18th. In a machine for drying, heating and fluxing wet sheets of iron or steel
preparatory to coating the same with metal, the combination with a series of pairs
of steam heated rolls, the first pair being at a lower temperature than the last pair,
of steam heated oil troughs or compartments for each pair of said rolls, and a
corrugated or open inclined feed table for delivering the sheets to the first pair
of said rolls, and means for heating said rolls and oil troughs or compartments and
regulating the temperature thereof, substantially as specified.
"
19th. In a machine for drying, heating and fluxing wet sheets of iron or steel
preparatory to coating the same with metal, the combination with a series of pairs
of steam heated rolls, the first pair being at a lower temperature than the last pair,

page_text: of steam heated oil troughs or compartments for each pair of said rolls, and a
discharge table, and means for heating said rolls and oil troughs or compartments
and regulating the temperature thereof, substantially as specified.
20th. In a machine for drying, heating and fluxing wet sheets of iron or steel
preparatory to coating the same with metal, the combination with a series of pairs
of steam heated rolls, the first pair being at a lower temperature than the last
pair, of steam heated oil troughs or compartments for each pair of said rolls, and
an inclined feed table for delivering the sheets to the first pair of said rolls, and a
discharge table, and means for heating said rolls and oil troughs or compartments
and regulating the temperature thereof, substantially as specified.
21st. In a machine for drying, heating and fluxing wet sheets of iron or steel
preparatory to coating the same with metal, the combination with a series of pairs
of steam heated rolls, the first pair being at a lower temperature than the last pair,
of steam heated oil troughs or compartments for each pair of said rolls, a corrugated
or open inclined feed table for delivering the sheets to the first pair of said rolls,
and a discharge table, and means for heating said rolls and oil troughs or compart-
ments, and regulating the temperature thereof, substantially as specified.
22nd. In a machine for drying, heating and fluxing wet sheets of iron or steel
preparatory to coating the same with metal, the combination with a series of pairs
of steam heated rolls, the first pair being at a lower temperature than the last
pair, of steam heated oil troughs or compartments for each pair of said rolls, an
oil feed tank for delivering oil automatically to said oil troughs, and means for
heating said rolls and oil troughs or compartments and regulating the temperature
thereof, substantially as specified.
23rd. In a machine for drying, heating and fluxing wet sheets of iron or steel
preparatory to coating the same with metal. the combination with a series of pairs
of steam heated rolls, the first pair being at a lower temperature than the last
pair. of steam heated oil troughs or compartments for each pair of said rolls, and a
steam heated oil feed tank above said troughs and furnished with means for feeding
the oil therefrom into said troughs, and means for heating said rolls and oil
troughs or compartments, and regulating the temperature thereof, substantially as
specified.
24th. In a machine for drying, heating and fluxing wet sheets of iron or steel
preparatory to coating the same with metal, the combination with a series of pairs
of steam heated rolls, the first pair being at a lower temperature than the last
pair, of steam heated oil troughs or compartments for each pair of said rolls, and
a drip pan below said oil troughs, and means for heating said rolls and oil troughs
or compartments, and regulating the temperature thereof, substantially as
specified.
25th. In a machine for drying, heating and fluxing wet sheets of iron or steel
preparatory to coating the same with metal, the combination with a series of pairs
of steam heated rolls, the first pair being at a lower temperature than the last
pair, of steam heated oil troughs or compartments for each pair of said rolls, a
drip pan below said oil troughs, and an overhead oil feed tank, and means for
heating said rolls and oil troughs or compartments, and regulating the temperature
thereof, substantially as specified.
26th. In a machine for drying, heating and fluxing wet sheets of iron or steel
preparatory to coating the same with metal, the combination with a series of pairs
of steam heated rolls, the first pair being at a lower temperature than the last
pair, of steam heated oil troughs or compartments for each pair of said rolls, a
drip pan below said oil troughs, an overhead oil feed tank, and a pump and con-
pecting pipes for delivering the oil automatically from said drip pan to said over-
head feed tank, and means for heating said rolls and oil troughs or compartments,
and regulating the temperature thereof, substantially as specified.
27th. The combination with a pair of heated Huxing rolls, an oil trough or
ressel, and an oil supply G above said oil trough, furnished with a feed nozzle g,
and means for heating said rolls, substantially as specified.

page_text: 28th. The combination with a pair of heated fluxing rolls, an oil trough or vessel,
an oil supply tank G above said oil trough, furnished with a feed nozzle g, and a
drip pan below said oil trough or vessel, and means for heating said rolls, substan-
tially as specified.
29th. The combination with a pair of heated fluxing rolls, an oil trough or
vessel, an oil supply tank G above said oil trough, furnished with a feed nozzle g,
a drip pan below said oil trough or vessel, and a pump and connecting pipes for
delivering the oil from said drip pan to said oil feed tank, and means for heating
said rolls, substantially as specified.
30th. The combination with a pair of heated fluxing rolls, an oil trough or
vessel, an oil supply tank G above said oil trough furnished with a feed vessel g,
and a steam pipe and connections for heating said rolls and said oil trough or vessel,
substantially as specified.
31st. The combination with a pair of heated fluxing rolls, an oil trough or
vessel, an oil supply tank G above said oil trough furnished with a feed nozzle, a 1
steam pipe and connections for heating said rolls and said oil trough or vessel, and
said oil feed tank, substantially as specified.
32nd. The combination with steam heated rolls D D D D D D', of an oil
containing vessel B furnished with separate troughs or compartments B¹ B' B³
and B' having hollow partitions & heated by steam, and a drip pan H having
well H', oil feed tank & above said oil trough having nozzle g, and pump K and
connecting pipes leading from said pump to said drip pan, and feed tank, and
steam pipes and connections for supplying the steam to said rolls and hollow
partitions, substantially as specified.
33rd. The combination with two or more pairs of heated rolls and oil troughs
in which they revolve, the partition between the first two oil troughs being
furnished with an extension 6, means for heating said rolls, substantially as
specified.
34th. The combination with rolls D D', D D', D D¹, of an oil vessel or pot
divided into troughs or compartments B1 B2 B3 by hollow heated partitions 6 b², said
partition between the first two pairs of rolls having an extension 64, and means for
supplying steam to said hollow partitions b¹ to heat the same, substantially as
specified.
35th. The combination with the frame furnished with guides F', of rolls D D¹
having journal boxes or bearings F F fitting in said guides F³, and adjusting
screws for supporting the boxes F of the upper roll, and a flux trough in which
the lower roll revolves, substantially as specified.
36th. The combination with the frame furnished with guides F3, of rolls D D¹
having journal boxes or bearings F F1 fitting in said guides F, and adjusting
screws for supporting the boxes F of the upper roll, and a flux trough in which
the lower roll revolves, an adjusting screw f, said adjusting screw f¹ and spring ƒ³
being above the upper roll, substantially as specified.
Chicago, Illinois, U.S.A., November 16th A.D. 1892.
Witnesses:
H. M. MUNDAY.
EDWIN NORTON.
JOHN GEORGE HODGSON.
EMMA HACK.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicants.