Improvements in Rolling Mills.
Year: 1893

page_text: te of Application, 15th Aug., 1893-Accepted, 30th Sept., 1893
COMPLETE SPECIFICATION.
[Communicated from abroad by HENRY JAMES GOSLING, of Philadelphia, in the
State of Pennsylvania, United States of America, File Manufacturer.]
Improvements in Rolling Mills.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co. Patent Agents,
45 Southampton Buildings, in the County of Middlesex, 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 said invention relates to rolling mills as hereinafter described.
In the accompanying drawing,
Figure 1 is a front elevation.
Figure 2 is a part side elevation, showing one end of the top rail, one former and
one idler roller.
Figure 3 is a detal view of the driver, showing its two striker' arms, and
Figure 4 a similar view of the carrier.
A is the base of the machine. B B are the housings, supporting the rolls C. D.
The roll C is an ordinary roll carried in ordinary adjustable bearings; while roll D
by its journal riding in slots E" E" (shown in dotted lines Figure 1) can be brought
into close contiguity with roll C, or dropped so as to leave an open space between
it and roll C, to an extent governed by the shape of the formers E E. The latter
are fastened rigidly upon the journals of the lower roll D, on the outside of the
housings. FF are the idler rollers which revolve freely whilst the formers E E¹
turn in contact with them; these rollers are supported in bearings in the
housings B B and by stanchions or standards F F G is a carrier fastened
rigidly on the outer journal of roll D and is provided with two long lugs G¹ G",
adapted to be always in engagement with the projections or strikers I l' of the
driver H. The said driver is mounted on one end of a shaft J supported in a long
bearing formed in the standard J' (see Figure 1). The said driver H is made in
the shape of a dise provided with two projections or strikers II' so that these parts
transmit motion to the roll D and its formers E and E'. The shaft J is driven
from a pulley K" mounted on a shaft K, by means of a pinion KY on the said
shaft K and a gear wheel K on the shaft J. K K are standards for
supporting the shaft K. L is a guide or feeding plate to support the material fed
to and received from the rolls.
I will now describe the operation of the machine as follows:-It is used to shape
file blanks, though it may be applied to various other uses. It may be here
remarked that the upper roll C revolves in its bearings and does not move vertically
and ouly revolves by contact with an object placed between it and roll D, when the
latter, rising on its formers E E', and revolving, forces this object against the
roll C; whereupon the said roll C turns by the friction thus created.
Power is applied to pulley K", turning it in the direction indicated by its arrow.
Motion is thus communicated through pinion K wheel K and shaft J to the
driver H in the direction indicated by the arrow and thus to the carrier G, through
the projections or strikers I l' and lugs G' G", so as to drive the roll D with its
formers E E' in the same direction. In Figure 1 the lower roll D is shown in its
lowest position. The formers E E' constitute two cams corresponding in shape and
in relative position, the fulcrum points upon which they turn being coincident with
a central line through the axis of lower roll D. The edges of the two cams
nearest the fulcrums are shown in Figures 1 and 2 as resting upon the idler
rollers F F. The blank to be manipulated being held by its rear end is now
passed between the separated rolls C, D, over the plate L and is grasped at or near
its front end by the rolls when the lower one, actuated by cams E E' rises; the

page_text: gradual swell of the revolving cams raising it upwards evenly at both ends. The
blank is thus grasped between the upper and lower rolls imparting motion to roll C
in the direction of its arrow. The action of the cams now gradually compresses
the blank and the action of the rolls force it back upon the feed plate L, from
which it was taken, with the desired taper formed upon it. The length of the
edges, or treads of the cams, viz. -the swells between the points where they
induce the lower roll to grasp or bite the blank and the point where the cams
permit the lower roll to drop, are each equal to the length of that part of the blank
which it is desired to treat by rolling.
It is evident that by using variously shaped cams, I can produce forms of various
kinds on the material treated.
To vary the distance between the rolls for different operations I raise, or lower
the upper roll by means of adjustable screws M, M, which latter engage in the
journal blocks of the upper roll; but as this is well known in ordinary rolls it
requires no special description here.
It will be observed that the lower roll is driven by gearing and that the top one
by friction and so arranged as to remain at rest until the raising of the lower roll
by the cams bringing the material under treatment into contact with the said
upper roll.
Having now particularly described and ascertained the nature of this said inven-
tion, and in what manner the same is to be performed, as communicated to me by my
foreign correspondent, I declare that what I claim is :—
1st. The separable upper and lower forming rolls C and D, mounted in
housings B B, said housings being provided with slots E" E" in which the journals
of the lower roll D ride; said journals being provided with cams E E; idler
rollers FF, upon which said cams turn; whereby, while the upper roll is out of
service, the revolution of said lower roll D will revolve the cams and the said cams
acting on the idler rollers will raise and lower the said lower roll, all combined and
operating substantially as described and for the purposes set forth.
2nd. The separable upper and lower forming rolls CD, mounted in housings B B';
said housings being provided with slots E" E, in which slots the journals of the
lower roll D ride, the said journals being provided with cams E E'; idler
rollers F F, upon which said cams E E' turn; whereby, by the revolution of said
lower roll D the motion of the cams on said idler rollers will raise and lower the
said lower roll and carrier G, provided with Jugs G G" and fixed at one end of the
journal of the lower roll; and revolving driver H, provided with projections or
striker II all combined and operating substantially as and for the purposes set
forth.
Dated this 15th day of August. 1893
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.