IMPROVEMENTS IN MACHINES FOR ROLLING IRREGULAR FORMS OF METAL
Year: 1885

page_text: of Metal.
I, HERBERT JOHN ALLISON, of the firm of Allison Brothers, Patent Agents, of
52 Chancery Lane, London, in the County of Middlesex, do hereby declare the
nature of the said invention for "IMPROVEMENTS IN MACHINES FOR ROLLING
IRREGULAR FORMS OF METAL," a communication to me from abroad by Lorenzo
Dow Farra, of Philadelphia, Pennsylvania, United States of America, to be as
follows:-
The said invention consists in a novel manner of gearing the rolls of machines
for rolling irregular forms of metal by means of which a rest in their rotation is
obtained giving time to insert the metal to be rolled. It also consists in a novel
method of constructing the rolls whereby the metal to be rolled may be readily
inserted.
It further consists in a novel manner of reliably and quickly throwing the rolls
out of gear.
A shaft is mounted upon a suitable housing to which shaft is attached at one
end a driving pulley and at the other end a pinnion. Meshing with the pinion is a
mutilated spur wheel the latter being secured to the shaft of a roll which by means
of gearing communicates motion to a second roll. To one side of said pinion is
fixed a finger so placed that it acts on the arm movably connected with said
mutilated spur wheel so as to control said wheel. The said arm forms part of a
clutch which encircles the shafts of the roll which communicates motion to the
second roll. To the arm are secured two pins loosely falling into the openings on
said spur wheel which pins make the arm, the clutch and spur wheel operate
as one,
This arm and connected parts are moved by a clutch lever clear of the finger on
the pinion when so desired. Secured to the pinion opposite said finger is a wiper
so located that it acts upon a spring arm or bar connected with the housing of the
machine, said arm or bar having an opening into which fits a pin projecting from
said mutilated spur wheel.

page_text: Mounted on the housing is a frame which is provided with adjustably connected
guides or stops. These guides serve to allow the bar to be rolled to enter the
required distance so that when a die cut in the grooves of the rolls comes around it
will properly register with the work already commenced and return the bar to the
operator.
The grooves or facets cut in the rolls have a contour of the desired form to be
rolled.
The power is applied to the shaft whereby the pinion is rotated and the clutch
lever is shifted. The mutilated or cut away portion of the spur wheel allows the
pinion one revolution as an idler giving the operator time to insert his work on
the rolls, the pin projecting from spur wheel being controlled by the spring arm
whereby the spur wheel remains stationery. On the second turn of the pinion the
finger thereon strikes the arm connected with the mutilated spur wheel rotating
said wheel, and the wiper moves the spring arm thus releasing said pin and the
spur wheel is put in gear with the pinion the rolls being thereby operated. When
it is desired to arrest the motion of the rolls the clutch lever is moved so that the
arm connected with spur wheel clears the finger connected with the pinion, the
pins secured to the arm serving as a guide to said fingers in order to preserve its
connection in proper position with the spur wheel.

page_text: Figure 3 is a top view thereof.
Figure 4 is a section in x, x, Figure 2.
Similar letters of reference indicate corresponding parts in the several figures.
My invention consists of an improved manner of gearing the rolls of machines
for rolling irregular forms of iron, by means of which I obtain a dwell or rest in
their rotation giving time to insert the metal to be rolled.
It also consists of a novel manner of making the rolls, whereby the form or
metal to be rolled may be easily inserted.
It further consists of a novel manner of reliably and quickly throwing the rolls
out of gear.
Referring to the drawings:-
A represents a housing and B a shaft mounted thereon, the latter having
attached to it at one end a driving pulley B¹; and at the other, end a pinion C.
Meshing with the pinion C is a mutilated spur wheel D which is secured to the
shaft of a roll E which by means of gearing F, F¹, communicates motion to
the roll El.
To one side of the pinion C is fixed a finger C¹ which is so disposed that it acts
on a finger or arm D¹ which is movably connected with the wheel D so as to
control said wheel as follows:-Encircling the shaft E" of the roll E is a clutch D
of which the finger D¹ is a part. Two pins a, a, secured to the finger D' and
loosely fitted in openings in the spur wheel D serve to make the finger D¹,
clutch D, and spur wheel D operate as one.
G represents a clutch lever which serves to move the finger D¹ and connected
parts clear of the finger C¹, when so desired. Secured to the pinion C, opposite to
the finger C, is a wiper H, so located that it acts upon a spring arm or bar J
connected with the housing of the machine, said arm having an opening into which
fits a pin K projecting from the wheel D.
Mounted on the housing is a frame L, to which are adjustably connected guides
or stops M, the object whereof will be hereinafter explained.
The rolls E, E, are formed with grooves b, the contour whereof is that of the
form to be rolled.
Power is applied to the shaft B, whereby the pinion C is rotated and the lever G
shifted. The mutilated or cut-away portion c of the spur wheel D allows the
pinion C one revolution as an idler, giving the operator time to insert his work on
the rolls, the pin K being controlled by the spring arm J whereby the wheel D

page_text: remains stationary. On the second turn of the pinion C, see Figure 1, the finger C¹
strikes the finger D¹ rotating the wheel D and the wiper H moves the spring arm J,
thus releasing the pin K, and the spur wheel D is put in gear with the pinion C,
the rolls being thereby operated.
When it is desired to arrest the motion of the rolls, the lever G is moved, so that
the finger D¹ clears the finger C¹, the pins a, a, serving as a guide to said finger in
order to preserve its connection in proper position, with the wheel D.
The guides or stops M serve to allow the bar to be rolled to enter the proper
distance so that when the die 1, cut in the grooves of the rolls comes around,
it will properly register with the work already commenced and return the bar to
the operator, said die being of the form of the head of a thumb screw, lag screw,
rivet, etc.
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. Rolls in combination with a mutilated spur wheel, and a spur wheel meshed
therewith, each wheel being provided with a finger which engages with the other,
substantially as and for the purpose set forth.
2. Rolls in combination with the frame L and guides and stops M adjustably
connected therewith, said rolls having facets b and dies bl, substantially as and for
the purpose set forth.
3. Rolls in combination with spur wheels, a pin on, one wheel; a wiper on the
other wheel, and a spring arm on the housing, said arm being adapted to engage
with said pin, and said wiper to move the spring arm clear of the pin, substantially
as and for the purpose set forth.
4. Rolls in combination with a clutch, a finger connected with said clutch, a.
mutilated spur wheel, pins attached to said finger freely entering openings in said
spur wheel, and a spur wheel provided with a fixed finger, substantially as and for
the purpose set forth.
.
5. Rolls in combination with spur wheels, a finger movably connected with one
of the spur wheels, the latter wheel being mutilated, and a finger fixed to the other
spur wheel, a pin projecting from the spur wheel, a wiper connected with the other
spur wheel, and a spring arm attached to the housing, said pin and arm engaging
and controlling the mutilated wheel, and said wiper disconnecting said pin and arm
to release the mutilated wheel, substantially as and for the purpose set forth.
Dated this 22nd day of September 1885