Year: 1887

page_text: Date of Application, 7th July, 1887.
Specification Accepted, 21st Oct., 1887.
I, SAMUEL DUFF of Steubenville, Jefferson County in the State of Ohio, Gentleman
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:-
and
My invention relates to certain new and useful improvements in rolling iron;
it consists in providing the rolling mechanism with means for elevating the iron in front
of the rolls so it may readily pass through the same.
My invention also consists in the construction and combination of the parts as will
be hereinafter fully set forth, and specifically pointed out in the claims.
In the accompanying drawings, which illustrate my invention, Figure 1 shows my
improvement applied to a set of rollers which are designed to roll bar-iron, and also to
a set of rollers which are designed to roll sheet-iron. Fig. 2. is an end view of my
improvement. Fig. 3. is a sectional view. Fig. 4 is a detail perspective view of the
means employed for throwing the lever which operates the elevating mechanism of the
cage out of gear.
A A A. refer to suitable housings within which are journalled rolls B B and B¹.
Two sets of these rolls, as indicated by B B, have smooth surfaces, and are adapted
especially for rolling sheet metal, while the rollors B are provided with suitable
corrugations of different sizes and shapes for properly manipulating and forming
bars or blanks of a desired shape. The rolls hereinbefore described are preferably
located in line with each other, and are mounted on shafts which are geared to each
other so that they will move in unison. No special claim is made to these rollers
per se, as they form no part of my invention, and therefore a further description thereof
or their action upon the metal will not be necessary.
Űrefers to braces or suitable standards, which are attached to the upper portion of
the frames A and extend horizontally therefrom for a suitable distance, after which
they are bent downwardly and secured to the support or foundation upon which the
frames A rest. The bars are also provided with depending bars c, which extend
vertically in front of the rolls and serve as guides for the ends of the lever D, which
raises and lowers the carriage.

page_text: The levers D are supported at suitable distances from the rolls by standards E, to
which they are pivotally attached, and the ends of these levers D are alapted to
engage with a toothed segment or enlargement, e, which is formed integral with or
attached to the cog-wheel F, which is mounted in suitable supports, F1, so that when said
cog-wheel is rotated the segment will engage with end of the lever to elevate the
opposite end of the lever. The cog-wheel F is driven by a pinion f which is secured
on the crank-shaft g, which is driven from a suitable engine or other power. In order
to engage or disengage the pinions with the wheels F, I form the shaft in parts (as
shewn in Fig. 4.) one part of which is provided with the recessed sleeve g' into which
sleeve the flattened end of the remaining part of the said sleeve y passes. A lever G
pivoted at G is adapted to embrace the recessed sleeve g'. By moving the lever G in
its guides G the shaft g may be telescoped or elongated and the distance between the
pinions decreased or increased as desired. When the distance been the pinions ff
is decreased the said pinions are drawn towards their bearings and away from the
wheels F and the pinions and wheels are thus put out of gear. A reverse movement
of the lever G will elongate the shaft and bring the pinions flush with the wheels F,
and consequently into gear with them, and which wheels F will thus be caused to
rotate so that the segment thereon will engage with the lever D and elevate the same,
which moveament is caused when it is desired to take the iron which is passed through
the lower rolls and place it in position so that it will be returned between the upper
rolls. H refers to tables or elevators which may be corrugated at their base when it
is desired to elevate bars of metal or plain when used for raising sheet metal. The
bases h of these elevators at their outer ends have transverse bars i, which project
beyond the standards while the sides are cut away, as shewn at i, and i", so that the
elevators or hoisting apparatus may have a slight swinging moveament between the
frames or supports C&C. The base of the elevators H have attached thereto suitable
bars which converge toward each other at their upper ends and are formed into eyes
through which a bolt passes for connecting the saine to the ends of the levers.
The vertical bars Chave attached thereto on a line with the space between the
central rollers segmental plates K, and smaller plates K', are attached to the vertical
bars, opposite the central roller. By providing the frame with these plates the
metal after passing through the lower rollers is deposited upon the platform H of the
elevator, and when the elevator is raised it will be forced outwardly from the roller, so
as to allow the end of the same to clear the central roller, and as soon as the metal
bars are raised beyond the central roller the platform will engage with segmental
plates K and be shifted or thrown toward the space between the upper rollers, so that
the bars will be caught between said rollers and carried through.
By providing the mechanism hereinbefore described in rolling iron, a hand or
person is dispensed with and the work of returning the bars to the rollers is performed
automatically and at the proper time.
If desired, the platforms may be provided with spring-buffers upon which the
elevator may strike in their downward movement.
The device herein before described is especially adapted for rolling bars primarily or
prior to forming them into suitable blanks, and after the hars have been rolled and
re-rolled they are inserted between the rollers indicated by the letter L.
The base of the platforms or elevators H may consist of plates or bars, which are
suitably shaped and arranged, and when plates are employed they are perforated, so
as to allow air to pass between the same, and thus avoid undue heating of the
parts.
In front of the rollers L are located curved plates M, which are secured rigidly at
their upper and lower edges by means of transverse bars to the outer vertical edges
of the frames A, and these return plates are provided with slots m, as shewn in the
accompanying drawings, and between said slots and on the inner sides of said plates
curved metallic plates N are rigidly secured, the upper portion of said metallic plates
depending as shewn in Fig. 3, the lower edge of said depending portion being
curved upwardly as shewn by dotted lines and to these upwardly-curved portions is
secured a plate n, thus forming an opening ' through which the metal will pass to

page_text: the upper rolls. In rolling plain sheets of metal, the intermediate plates N are
dispensed with, and are only employed in rolling bars or blanks. It will be observed
that the curved plates N and the plates n are for the purpose of keeping any two bars
of hot metal separate and to guide the metal bars to corresponding groves in the
upper pair of rollers. Two or more of the guides or bars M may be at an angle, as
shewn in Figs. 1 and 2, so that the bars after passing through the rollers may be fed
against the plates M, and will be guided by the projecting portions N to the adjacent
rollers, thus making the rolling continuous from one end of the rolls to the other.
The metal to be rolled may be conveyed to and from the rolls by means of suitable
rollers mounted upon a suitable framework. If desired, a suitable pitman attached
to a crank, rigidly keyed or otherwise affixed to the shaft of the large spur wheel may
be adapted to vibrate with every revolution of the aforesaid wheel and draw the
hoisting gear close up to the rolls in the event of any disarrangement of the said
hoisting gear.
The rolls may be brought together or apart, by means of a suitable hand wheel
which, in combination with a system of levers suitably arranged beneath the floor of
the mill causes the lower roll to be raised and pressed against, or lowered and released
from the upper rolls.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim is :-
1. In combination with three or more rolls, a vertically-movable platform supported
opposite said rolls, means for elevating and lowering the platform, and cam-plates for
moving the platform to the bite of the upper rolls, whereby the metal under treatment
may be received from the lower rolls and raised to and thrust within the bite of the
upper rolls, substantially as specified.
2. In a device for rolling metal an elevator supported in front of a set of rolls, the
guideways for said elevators having segmental plates K and K' secured thereto, so as
to swing the platform when it is raised away from the central roll and then move the
sanie to the bite of the upper rolls so that the bars will be caught and carried from
the platform, substantially as described, and for the purpose set forth.
3. In combination with a set of rolls, a platform mounted in suitable frame in front
of said rolls, said platform having recessed sides, and a transverse bar attached thereto
for limiting its swinging movement, plates K & K', adapted to engage with the
recessed edges of the platform, and a lever for elevating the same, the parts being
organized substantially as shewn, and for the purpose set forth.
Dated this 7th d...
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