Improvements in Rolling Mills.
Year: 1898

page_text: Date of Application, 8th Mar., 1898-Accepted, 18th June, 1898
COMPLETE SPECIFICATION.
Improvements in Rolling Mills.
I, EDWIN NORTON, of Maywood, in the County of Cook, State of Illinois, United
States of America, Manufacturer, 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 relates to sheet-metal rolling-mills.
In sheet-metal rolling-mills heretofore in use in this and other countries for
reducing bars of iron or steel into thin sheets, such as are rolled in packs to com-
paratively thin gauges and used for tin-plate, black-plate and sheet-iron, it has
always been customary to employ a number of skilled operators, commonly known
as the roller man
"who has general charge of the mill and who feeds the heated
bars or packs to the rolls, the "catcher" who catches the bars or packs as they
emerge from the rolls with iron tongs and returns them over the top of the rolls
screw man who operates or
to the rollerman ready for the next pass, and the
turns the feed or adjusting screws by which the rolls are set closer together after
each pass, the operation being repeated again and again until the packs are the
desired thickness. From time to time the bars or packs are returned to the furnace
and re-heated.
"
The object of my invention is to provide an automatic sheet-metal rolling-mill
for performing the operations heretofore done by hand, by the several skilled
workmen above mentioned.
My invention consists in an automatic sheet-metal rolling-mill comprising rolls
to reduce the metal to the desired thickness, feed-tables to feed the series of bars,
sheets or packs to the rolls and to receive the same from the rolls, feed or adjusting
screws to set the rolls closer and closer together as the rolling proceeds, and auto-
matic mechanism for turning the feed or adjusting screws down to effect the
successive reductions by a predetermined number of passes of the metal between the
rolls and then automatically running the feed-screws back to position for repeating
the operation on the next series of bars, sheets or packs, whereby the mill is
caused to make a predetermined number of passes of the metal between the rolls
and each with a predetermined amount or degree of reduction, with comparative
rapidity and before the metal looses its heat, and then automatically return to
place for repeating the operation, thus effecting a great saving of skilled and high
priced labor and at the same time producing a much greater aggregate reduction
of the metal at each heat, and also entirely obviating all danger of straining the
mill or breaking the rolls as heretofore has frequently happened, owing to the
carelessness or misjudgment of the operatives in setting the rolls closer together
for the next pass.
My invention further consists in connection with the rolls, adapted to pass the
bars or sheets between them successively in opposite directions, and feed-screws or
devices for setting the rolls closer together after each successive pass, of mechanism
for automatically turning or adjusting the feed-screws or devices after each suc-
cessive pass, and mechanism for automatically changing or regulating the extent
to which the feed-screws or devices are turned or moved after each pass or after

page_text: any given number or series of passes, so that as the metal cools a less and less
reduction may be effected at each. pass or at each pass of each successive series
of passes. It further consists in providing the feed-table with movable gauges
or guides which are automatically operated to square or true up and center the
bars or sheets on the feed-table after each pass preparatory to their being again
passed between the rolls. It further consists in the combination of the rolls and
feed-table or feed-devices upon which the sheets rest, of a sheet trimming or
shearing mechanism to which the sheets are delivered by the feed-table of the
rolling-mill. It further consists in-the combination with the rolls and feed-table
of a pack-shearing and slitting mechanism.
The feed-screws are turned at intervals by connecting them with a power-driven
pulley through a suitable clutch; and they are automatically operated after each
pass, at the beginning of each reversal of the rolls, preferably, by means of a cam,
frictionally connected to the shaft of the driven-roll, and which, through suitable
connecting mechanism, controls the operation of the clutch through which the
feed-screws are connected with their driving-pulley; although any other suitable
mechanism may be employed for thus automatically operating or turning the feed-
screws at each reversal of the motion of the mill. The means or mechanism which
I prefer to employ for automatically changing or regulating the extent to which
the feed-screws are turned after each pass or after each successive series or number
of passes, consists in a set of gears of different diameters which successively engage
a set of segment-gears of different diameters, and which are interposed in the
connecting mechanism or gearing connecting the feed-screws with their driving-
shaft although any other suitable means or mechanism may be employed in the
combination as the equivalent of the set of gears and segments of different
diameters. By this means I am enabled after each pass of the bars or sheets
between the rolls not only automatically to set or adjust the rolls for the next pass,
but also after any pass or any given number or series of passes, as for example
five, to automatically change or regulate the extent to which the feed-screw shall
be turned at each pass or at each pass of the next succeeding series of say five
passes, and so on, thus accommodating the action of the mill to the changed
conditions of the sheets or bars due to the lapse of time and loss of temperature as
the rolling proceeds. In the drawing I have illustrated my sheet-metal rolling-
mill as being arranged and adapted to turn or adjust the feed-screws an equal
extent for each of a series of five passes, and then an equal but less extent for each
of a succeeding series of five passes, and then an equal but still less extent for
each of a final series of five passes; but it will be understood that by simply
changing the intermeshing gears and segments and employing a greater or less
number of gears and segments the automatic changing or regulating of the extent
to which the feed-screws are turned may be made to occur with greater or less
frequency or after each and every pass if desired, or as may be required for the
particular nature of the work being done by the mill.
By this means I am enabled to save or entirely dispense with the skilled and
high-priced labor heretofore employed for turning or adjusting the feed-screws
after each pass, for feeding or passing the sheets centrally and squarely to the
rolls and for returning the sheets to the rolls after each pass, and at the same time
I am also enabled to make the successive passes much more expeditiously and thus
effect a much greater reduction at each heat. I also entirely obviate all danger
of breaking the rolls by improper adjustment of the feed-screws, an occurrence
which very frequently happens, owing to the carelessness or misjudgment of the
screwman.
In the drawing similar letters of reference indicate like parts throughout all
the figures.
In said drawing Fig. 1 is a plan view of a sheet-metal rolling-mill embodying
my invention; Fig. 2 is a front elevation looking from the line 2-2 of Fig. 1 in
the direction of the arrow; Fig. 3 is a side elevation; Fig. 4 is an enlarged detail
plan view illustrating the mechanism which I prefer to employ for changing or

page_text: regulating the extent to which the feed-screws are turned at or in each successive
series of passes; Fig. 5 is an enlarged partial vertical section, taken on the
line 5-5 of Fig. 4; Fig. 6 is a detail plan view of the mechanism for operating
the movable gauges of the roller-feed-table, and Fig. 7 is a detail elevation of
the same,
In the drawing A represents the frame of the machine, B B are the rolls, the
lower one, B, being the driven roll. C is the feed-table upon which the bars or
sheets rest and by which they are fed or passed back and forth between the rolls
successively in opposite directions. DD are the feed-screws, turning in the
housings of the frame, by which the rolls are set closer and closer together
after each successive pass. The lower ends of these feed-screws press against the
bearing B2 of the shaft B3 of the upper roll.
The feed-screws D D are turned at intervals by power communicated to them
from the feed screw driving pulley F3 through suitable connecting mechanism or
gearing including a clutch F1 F2 by which the shaft F is connected at intervals to
the driving pulley F³.
The means or mechanism employed to operate the clutch F1 F2 after each suc-
cessive pass at the reversal of the motion of the mill consists, preferably, of an
oscillating cam G secured frictionally to the shaft B33 of the lower roll B, and
which is adapted to oscillate slightly to one side or the other until it engages one
or the other of the stops GI G₁ attached to the frame. The frictional connection
between the cam G and the shaft 133 permits the roll to continue its rotation after
the cam engages the stop while at the same time causing the clutch F1 F2 to be
operated, and the turning of the feed-screws to set the rolls for the next pass to be
made, at the beginning of the reversal of the motion of the mill and before the
feed-table C enters the bars or sheets between the rolls.
Any suitable connecting mechanism may be employed for communicating
motion from the cam G to the movable member of the clutch F1 F2; but I prefer
to employ for this purpose a reciprocating slide g, having a pin or roller g₁ engag
ing the cam and which is provided at its upper end with a pawl or dog g², which
is adapted to engage a collar or projection g³ on the clutch operating rod g. A
spring 9 holds the pawl normally in position to engage said collar. A stationary
cam 96 engaging the free end of the pawl or dog causes it to disengage said
collar on the clutch-rod after having first operated the clutch-rod so that the
spring on the clutch-rod may return it to position to again disengage the clutch
after the shaft F has made one revolution. The shaft F is provided with a gear F
engaging a gear F on a shaft F, said gears being preferably so related to cach
other that the shaft F makes, for example, one revolution to every five revolutions
of the shaft F.
The means or mechanism which I prefer to employ for automatically changing
the extent to which the feed-screws are turned at each pass or after any given
number or series of passes, say for example five, consists in inserting in the con-
necting mechanism or gearing by which motion is communicated from the shaft Fo
to the feed-screw shaft, a set of gears of different diameters H, H', H², preferably
three in number, and a corresponding set of segment gears h, h¹, h², of different
arc lengths and arranged one after another, or each at the point where its pre-
decessor terminates, as will be readily understood from Figs. 4, 5 and 2.
If it is desired to change or regulate the extent to which the feed-screws are
turned more or less frequently than illustrated in the drawing, all that is required
is simply to substitute for the gears F and F5 other similar gears having a
different relation to each other, and for the set of gears and segments H h H h¹
H2 other sets or a greater or less number of similar gears and segments; and
thus any desired frequency of change or regulation of the extent to which the feed-
screws are turned may be produced, or after each and every pass if desired.
The feed-screws D 1) are geared together so as both to rotate in the same
direction by gears D2 D2 through an intermediate gear D³. The gears D³ instead
of being fixed directly to the shafts of the feed-screws D D are connected thereto

page_text: through the medium of worm-gears D D which fit on the squared ends 15 15 of
the shafts of the screws D D, and which worm gears engage worms 16 16
journaled in brackets on the gears D2 so that by turning the worm I by hand
the screws D may each be independently turned or adjusted in respect to each
other, as may be required from time to time to compensate for wear, or to bring
the rolls B B truly parallel to each other. The set of segment gears h¹³ which
successively mesh with the set of gears H, H1, H2 are secured to or formed integral
with the gear 12 on one of the feed-screws. The gear D² on the other feed-screw
is provided with a bevel gear D7 which meshes with a bevel gear K on the shaft K',
which is connected by a clutch K² K³ with the driving-pulley K, by which the
feed-screws are turned back or unscrewed after the rolling of the bars or packs
on the feed-table C is finally finished or completed for the heat. This clutch K² K³
is automatically operated after the rolling is thus completed by a cam K³ on one
of the gears D2 engaging a lever K from which, through suitable connections K,
K³, K, motion is communicated to the movable member of said clutch.
The feed-table C may be of any suitable kind or construction adapted to feed
or pass the sheets in opposite directions after each successive pass. It is preferably
what is known as a roller feed-table, and comprises a series of rolls e having
beveled gears c¹ engaging bevel gears on the shafts 33. Motion is communi-
cated to the shafts 3 in opposite directions as the motion of the mill is reversed,
preferably by providing the shaft of the driven roll B with the bevel gear b
engaging a bevel gear on the shaft 62 which has a second gear 63 engaging
gear on the shaft 65 from which motion is communicated to the shafts by
the pulleys b6 b7 and connecting belts.
The feed-table C is furnished with movable gauges or guides C¹ C¹ at its opposite
edges, which are automatically operated to approach each other after each pass
of the bars or sheets between the rolls, and thus by grasping the bars or sheets
at their side edges to automatically true or square up and center all the bars or
sheets on the feed-table preparatory to their being again passed between the rolls,
so that they will all enter the rolls smoothly and centrally with the rolls. After
the bars and sheets are thus automatically adjusted properly in position on the
roller feed-table the gauges or guides again open or separate and thus permit the
bars or sheets to be fed forward by the roller feed-table into the rolls without
friction contact with the gauges. The gauges or guides C¹ C¹are thus auto-
matically operated after each pass by any suitable means or mechanism, but
preferably by a cam or arm C2, frictionally secured to the shaft B³ of the driven
rolls B, similarly to the friction cam G, and which is adapted to vibrate from one
of the stops C C+ to the other at each reversal of the rolls, and which is connected
to the slides C C carrying opening and closing gauges C1 C, preferably by
means of a link C6 pivoted to the friction cam or arm C2 and to a lever or arm (7
which is connected by a link C8 with a rack C that meshes with a gear C10 on a
rock shaft C that is provided with a pair of lever arms C12 C12 connected by
links C3C and intermediate lever C with the gauge carrying slides C³ C³, so
that at each movement of the friction cam or arm C2 the two gauges C¹ C¹ are first
made to momentarily close or approach each other to center and square the bars
or sheets on the feed-table and then at once to open or separate to permit the bars
or sheets to be fed forward into the bite of the rolls without again touching the
gauges which might otherwise tend to disarrange the bars or sheets on the table
before entering the rolls.
M represents the mechanism for squaring, trimming or shearing the end edges
of the sheets after the rolling has been completed. It may be of any suitable
construction known to those skilled in the art. The sheets are delivered from the
roller feed-table C of the rolling-mill onto a feed-table M¹, from which the sheets
to be trimmed are fed or passed between the rotary cutters M2 of the sheet
trimming mechanism. Feed rollers M³ serve to feed the sheets onto this feed
table M¹.
N represents a mechanism for trimming and sub-dividing or slitting packs of

page_text: metal sheets as they are delivered from the feed-table of the rolling-mill. This
trimming and slitting mechanism may be of any suitable kind known to those
skilled in the art.
The packs of sheets after being rolled are delivered by the roller feed-table C
of the rolling-mill directly onto the feed-table N¹ and between the feed-rolls N
of the trimming and slitting or sub-dividing mechanism, and thence between the
rotary trimming cutters N³, thence between the feed-rollers N to the roller feed
table No of the slitting or sub-dividing mechanism and thence passed transversely
between the feed-rollers No to the slitting or sub-dividing cutters N7, and thence
out of the machine between the delivery rolls N8.
In operation the motion of the driven roll B may be reversed by any suitable
mechanism after each pass, but this is preferably done by simply reversing the
engine by which the mill is driven.
To enable the mill to be run any desired number of passes without feeding,
setting or adjusting the rolls closer together, as is sometimes desired, I provide
the mill with means for fixing the cam G stationary. This means may preferably
consist of a pin 8 inserted through the cam and entering a hole g" in the frame.
To provide the mill with means for readily setting or adjusting the feed-screws
to any required thickness of metal, or to any required distance of the rolls B B¹
apart when the feed-screw driving-gears are turned completely around or down,
I provide two gauge plates or disks to fit between the end of the feed-screw and
the bearing of the upper roll, one of which is less in thickness than the other by
the thickness of metal to which the bars, sheets or packs are designed to be
finished. So that in setting or adjusting the mill the thicker gauge plate P may
be inserted and the rolls then set down directly together, the screws being at this
time turned down ready for returning, after which the thicker gauge plate is
removed and the thinner one, 1", inserted in its place. This makes an easy and
expeditious means for setting or adjusting the mill to any required thickness
designed to be rolled. These gauge-plates, in connection with the feed-screws,
also serve as a ready means for readjusting or re-setting the mill to compensate
for wear.
The same mill may be employed for rolling bars or plates, as a roughing-mill,
or for rolling packs of thin sheets, and for this reason I combine with the same
mili both a trimming and shearing mechanism for trimming or squaring the
ends of the single sheets rolled from the bars, and also a pack-trimming and sub-
dividing mechanism for the finished packs.
After the rolling has been completed to deliver the bars, plates, sheets or packs
to either of the cutting mechanisms, the mill is simply continuously driven in the
same direction in which it was rotated for the last pass until all the several packs,
plates or sheets on the roller feed-table Care delivered onto the feed-table of the
cutting mechanism.
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:-
1st. An automatic rolling-mill for reducing bars to thin sheets, or packs of
sheets to thinner gauges, consisting of rolls to reduce the metal to the desired
thickness, feed-tables to feed the metal to the rolls and to receive it from the
rolls, gauges to center the metal on the feed-tables, feed-screws for adjusting the
rolls, and automatic means for turning the feed-screws whereby the mill is caused
to make a predetermined number of reductions of the metal and then return to
place for commencing another similar series of reductions without the aid of skilled
workmen, substantially as specified.
2nd. In an automatic rolling-mill, the combination with rolls to reduce the
metal, of a feed table to feed the metal to the rolls and receive it from the rolls,
parallel opening and closing guides, one on each side of the feed table, to center
the metal sheets or bars on the table, feed-screws for setting the rolls closer together

page_text: after each successive pass, automatic mechanism for turning the feed screws after
each successive pass, and means for automatically moving the guides after each
pass, substantially as specified.
3rd. In an automatic rolling-mill, the combination with rolls to reduce the
metal, of a feed table to feed the metal to the rolls and receive it from the rolls,
parallel opening and closing guides, one on each side of the feed-table to center
the metal sheets or bars on the table, feed-screws for setting the rolls closer
together after each successive pass, automatic mechanism for turning the feed-
screws after each successive pass, mechanism for automatically changing or
regulating the extent to which the feed-screws are turned after any given pass
or series of passes for the next successive pass or series of passes, and means for
automatically moving the guides after each pass, substantially as specified.
4th. The combination with the feed-table and rolls, of the feed-screws for
setting the rolls closer together after each successive pass, and mechanism for
automatically turning the feed-screws after each successive pass consisting in a
cam frictionally connected to the shaft of the roll, and connections between said
cam and feed-screws, substantially as specified.
5th. The combination with the feed-table and rolls, of the feed-screws for
setting the rolls closer together after each successive pass, mechanism for auto-
matically turning the feed-screws after each successive pass, and mechanism for
automatically changing or regulating the extent to which the feed-screws are
turned after any given pass or series of passes for the next succeeding pass or
series of passes, consisting in a set of gears of different diameters, and a corre-
sponding set of segment gears of different diameters. arranged one after another
and interposed in the connecting mechanism through which motion is communi-
cated to the feed-screws, substantially as specified.
6th. The combination with the feed-table and rolls, of the feed-screws for
setting the rolls closer together after each successive pass, mechanism for automatic-
ally turning the feed-screws after each successive pass, consisting in a cam
frictionally connected to the shaft of the roll, and mechanism for automatically
changing or regulating the extent to which the feed-screws are turned after any
given pass or series of passes for the next succeeding pass or series of passes,
consisting in a set of gears of different diameters, and
set of segment gears of different diameters arranged one after another and
a corresponding
interposed in the connecting mechanism through which motion is communicated
to the feed-screws, substantially as specified.
7th. The combination with the feed-table and rolls, of the feed-screws for
setting the rolls closer after each successive pass, mechanism for automatically
turning the feed-screws after each successive pass, and mechanism for automatically
returning or running back the feed-screws, substantially as specified.
8th. The combination with the feed-table and rolls, of the feed-screws for
setting the rolls closer together after each successive pass, mechanism for auto-
matically turning the feed-screws after each successive pass, mechanism for
automatically changing or regulating the extent to which the feed-screws are
turned after any given pass or series of passes for the next succeeding pass or
series of passes, and mechanism for automatically returning or running back the
feed-screws, substantially as specified.
9th. In a rolling-mill, the combination with the rolls adapted to be driven in
opposite directions, of the feed-screws for setting the rolls closer together after
each pass, a feed-screw driving shaft, clutch and connecting mechanism for turn-
ing the feed-screws, and a cam and connecting mechanism for operating the
clutch at each reversal of the motion of the rolls, substantially as specified.
10th. In a rolling-mill, the combination of the rolls adapted to be driven in
opposite directions, of the feed-screws for setting the rolls closer together after
each pass, a feed-screw driving shaft, clutch and connecting mechanism for
turning the feed-screws, a cam and connecting mechanism for operating the clutch
at each reversal of the motion of the rolls, and mechanism for automatically

page_text: changing or regulating the extent to which the feed-screws are turned after 'any
given pass or series of passes for the next succeeding pass or series of passes, sub-
stantially as specified.
11th. In a rolling-mill, the combination with the rolls adapted to be driven in
opposite directions, of the feed-screws for setting the rolls closer together after
each pass, a feed-screw driving shaft, clutch and connecting mechanism for
turning the feed-screws, a cam and connecting mechanism for operating the clutch
at each reversal of the motion of the rolls, and a set of gears of different diameters,
and a corresponding set of segment gears of different diameters interposed in the
connecting mechanism through which motion is communicated to the feed-screws,
substantially as specified.
12th. In a rolling-mill, the combination with the rolls adapted to be driven in
opposite directions, of the feed-screws for setting the rolls closer together after
each pass, a feed-screw driving shaft, clutch and connecting mechanism for turn-
ing the feed-screws, a cam and connecting mechanism for operating the clutch at
each reversal of the motion of the rolls, a set of gears of different diameters, a
corresponding set of segment gears of different diameters interposed in the con-
necting mechanism through which motion is communicated to the feed-screws,
and mechanism for running back or unscrewing the feed-screws after the rolling
is completed, substantially as specified.
13th. In a rolling-mill, the combination with the rolls adapted to be driven in
opposite directions, of the feed-screws for setting the rolls closer together after
each pass, a feed-screw driving shaft, clutch and connecting mechanism for turn-
ning the feed-screws, a cam and connecting mechanism for operating the clutch
at each reversal of the motion of the rolls, a set of gears of different diameters, a
corresponding set of segment gears of different diameters interposed in the con-
necting mechanism through which motion is communicated to the feed-screws,
mechanism for running back or unscrewing the feed-screws after the rolling is
completed, and a cam for setting said unscrewing mechanism in operation, sub-
stantially as specified.
14th. In a sheet-metal rolling-mill, the combination with the rolls and feed-
table, of a rotary cutter-sheet trimming or cutter mechanism having cutters for
each end of the sheet to which the rolled sheets are delivered directly to the feed-
table of the mill, said feed table having devices for feeding or conveying the sheets
both to the rolls and to said trimming or cutting mechanism, and movable gauges
on opposite sides of said feed-table to center the sheets on the table before entering
the rolls or entering the trimming or cutting mechanism, substantially as specified.
15th. In a sheet-metal rolling-mill, the combination with the rolls and feed-
table, of a rotary cutter sheet-metal trimming and slitting or subdividing
mechanism to which the sheets are delivered directly by the feed-table of the mill,
said feed-table having devices for feeding or conveying the sheets both to the rolls
and to said trimming and slitting or sub-dividing mechanism, and movable gauges
on opposite sides of said feed-table to center the sheets on the table before entering
the rolls or entering the trimming and slitting or sub-dividing mechanism, sub-
stantially as specified.
16th. In a sheet-metal rolling-mill, the combination with the rolls and feed-
table, of a sheet trimming or cutting mechanism to which the rolled sheets are
delivered directly from the feed-table of the mill, and a sheet-metal trimming
and sub-dividing mechanism, said feed-table having devices for feeding or convey-
ing the sheets both to said rolls and to said trimming or cutting mechanism, and
movable gauges on the opposite sides of said feed-table to center the sheets on
the table before entering the rolls, or the trimming or cutting mechanism, sub-
stantially as specified.
17th. The combination with the feed-table and rolls, of the feed-screws for
setting the rolls closer together after each successive pass, automatic mechanism
for turning the feed-screws after each successive pass, parallel movable gauges
for automatically truing and centering bars or sheets on the feed-table after each

page_text: successive pass, and automatic mechanism for opening and closing the gauges after
each pass, substantially as specified.
18th. The combination with the feed-table and rolls, of the feed-screws for
setting the rolls closer together after each successive pass, mechanism for auto-
matically turning the feed-screws after each successive pass, mechanism for auto-
matically changing or regulating the extent to which the feed-screws are turned
after any given pass or series of passes for the next succeeding pass or series of
passes, parallel movable guides for automatically truing and centering the bars
or sheets on the feed-table after each successive pass, and means for automatically
moving the guides after each pass, substantially as specified.
19th. The combination with the feed-table and rolls, of the feed-screws for
setting the rolls closer together after each successive pass, a mechanism for auto-
matically changing or regulating the extent to which the feed-screws are turned
after any given pass or series of passes for the next succeeding pass or series of
passes, consisting in a set of gears of different diameters, and a corresponding set
of segment gears of different diameters arranged one after another and interposed
in the connecting mechanism through which motion is communicated to the feed-
screws, and movable gauges for automatically truing and centering the bars or
sheets on the feed-table after each successive pass, substantially as specified.
20th. The combination with the feed-table and rolls, of the feed-screws for
setting the rolls closer together after each successive pass, automatic mechanism
for turning the feed-screws after each successive pass, and a rotary sheet trimming
mechanism to which the rolled sheets are delivered directly from the feed-table of
the mill, said feed table having devices for feeding or conveying the sheets both to
the rolls and to said trimming mechanism, and movable gauges on opposite sides
of said feed-table to center the sheets on the table before entering the rolls or
entering the trimming mechanism, substantially as specified.
21st. The combination with the feed-table and rolls, of the feed-screws for
setting the rolls closer together after each successive pass, automatic mechanism
for turning the feed-screws after each successive pass, and a rotary sheet trimming
and slitting or subdividing mechanism to which the sheets are delivered directly
by the feed-table of the mill, said feed-table having devices for feeding or con-
veying the sheets both to the rolls and to said trimming and slitting mechanism,
and movable gauges on opposite sides of said table to center the sheets on the
table before entering the rolls or entering the trimming and slitting mechanism,
substantially as specified.
22nd. The combination with the feed-table and rolls, of the feed-screws for
setting the rolls closer together after each successive pass, mechanism for auto-
matically turning the feed-screws after each successive pass, mechanism for
automatically changing or regulating the extent to which the feed-screws are
turned after any given pass or series of passes for the next successive pass or series
of passes, and a rotary sheet trimming mechanism to which the rolled sheets are
delivered directly from the feed-table of the mill, said feed-table having devices
for feeding or conveying the sheets both to the rolls and to said trimming mechan-
ism, and movable gauges on opposite sides of said feed-table to center the sheets
on the table before entering the rolls or entering the trimming mechanism, sub-
stantially as specified.
23rd. The combination with the feed-table and rolls, of the feed-screws for
setting the rolls closer together after each successive pass, automatic mechanism
for turning the feed-screws after each successive pass, parallel movable guides for
automatically truing and centering the bars or sheets on the feed-table after each
successive pass, and means for automatically moving the guides after each pass,
substantially as specified.
24th. The combination with the feed table and rolls, of the feed screws for
setting the rolls closer together after each successive pass, mechanism for auto-
matically turning the feed screws after each successive pass, mechanism for
automatically changing or regulating the extent to which the feed screws are

page_text: turned after any given pass or series of passes for the next succeeding pass or
series of passes, and a rotary sheet trimming or subdividing mechanism to which
the sheets are delivered directly by the feed table of the mill, said feed table
having devices for feeding or conveying the sheets to said rolls to said trimming
or cutting mechanism and to said trimming and subdividing mechanism, and
movable gauges on the opposite sides of said feed table to center the sheets on the
table before entering the rolls, the trimming or cutting mechanism, or trimming
and subdividing mechanism, substantially as specified.
Dated January 18th 1898.
Haseltine, Lake & Co.,
EDWIN NORTON.
.45, Southampton Buildings, London, W.C., Agents for the Applicant.