Improvements in and relating to Ferrule Making Machines.
Year: 1894

page_text: Date of Application, 10th July, 1594-Accepted, 11th Aug., 1894
COMPLETE SPECIFICATION.
Improvements in and relating to Ferrule Making Machines.
I, WILLIAM CANNELL, of No. 246 Broadway, in the City of Lyon, in Essex
County, Massachusetts, United States of America, Mechanical Engineer, 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 a combined drawing-press and trimmer for the
manufacture of ferrules, and other like articles.
manner,
In the construction of the same it is my object to combine in a superior
and in a single machine, all the mechanism which is necessary for per-
forming the several operations involved in converting a strip of sheet metal into
finished ferrules.
To accomplish this object, I use a double-action drawing-press, which is provided
with primary dies and punches, in the usual manner, and which is also provided
with a secondary die and punch, in combination with a trimmer, and with mechanism
for transferring the partly finished ferrules between the primary and the
secondary dies.
The best manner of applying the principles of my invention is shown in the
accompanying drawing, in which
Figure 1 is a side elevation of a ferrule machine, which is constructed upon
that principle.
Figure 2 is a front elevation of the same;
Figure 3 is an enlarged view of a portion of the same, partly in front elevation,
and partly in vertical section; and
Figure 4 is a plan of the transferring mechanism in detail.
The machine which is illustrated in this drawing includes the essential parts of
a common double-action cutting and drawing press, namely, the main shaft, which
is denoted in Figure 2 by the numeral 27, the pulley 66 and cams 28 upon the said
shaft, the blanking slide 7 and its anti-friction rollers 31, the spiral springs 30,
which hold up slide 7 so that rollers 31 are at all times in contact with cams 28,
the bonnet 2, which is secured to slide 7 by screws 8, as shown in Figure 3, the
blanking punch 3, which is carried by bonnet 2, and is hereinafter termed the
primary cutting punch, the drawing slide 4, reciprocating in slide 7, aud holding
the drawing punch 5 by means of cap 6, a crank on the main shaft 27, carrying
a pitman 29, which is connected with drawing slide 4 by a toggle joint 69, the
blanking die 9, the drawing die 10, and the spring stripper 11, which is placed in
an aperture through bolster-plate on bed-plate 15; all which are easily intelligible
from the drawings and from the usual construction and mode of operation of
double-action presses.
In the same slide 7 a tubular holder 33 of the reciprocating die 34 is seated in
a vertical position, adjustable by means of nut 47 Figure 3. On holder 33 is a
rotatable brass shell 40, having a neck, which is formed by the circumferential
groove 46. A nut 43 on the same holder 33, is provided with a bridle 45, taking
into groove 46, and with peripheral teeth 44, engaging a rack 50, which is held up
to such engagement by a bridle 52. A combined shell and pulley 41, keyed to
shell 40, and armed at its lower extremity with a steel cutter 42 is driven at high
speed by a belt 49, Figures 2 and 3. Within the holder and die 33 and 34, is a
spring-seated knockout 48, whose head is in apposition with lever 54. The inner
end of this lever is fastened loosely in a hole in slide 7, and the outer end of the
same projects through a guiding plate 72, on the face of that slide, for the purpose
of being alternately engaged and disengaged by latch 53. An adjustable plate 36

page_text: which is seated in bed-plate 15, as shown in Figure 3, holds a secondary cutting
punch 35, stationary under the die 34, in a hole, which contains a stripper, consisting
of the annular rubber spring 37 and the annular steel cover 38.
The main element of the above-mentioned transferring mechanism is the
turret 12, which is shown in Figures 3 and 4. This turret, which is provided
with a predetermined number of receptacles, or peripheral pockets, 13 is conveniently
located on the top of plates 15 and 36, and is surrounded by plate 32. The same is
provided with a shaft 16, which is journalled in a vertical position in bed-plate 15,
and is rotated intermittently by means of ratchet and pawl, 17 and 18 so that
pockets 13 pause in succession under punch 5, and also under die 34. Ratchet
wheel 17 has a sleeve which is fastened to shaft 16 by a pin 21; and pawl 18 is
.carried by lever 19, which turns upon the sleeve of the ratchet-wheel 17, being held
thereon by collar 20.
j
A rockshaft 22, which is driven by a crank disc 24 on the main shaft 27 by
means of a pitman 56 and arm 23 has three arms 25, 51 and 58, which are shown
in Figure 1. Arm 25 is connected by a pitman 26 with the lever 19, for the
purpose of intermittently rotating the turret 12; arm 51 is connected by a pitman 59
with the rack 50 Figure 3, for the purpose of turning the nut 43 alternately up and
down upon the die-holder 33; and arm 58 is connected by a pitman 55 with a bar 57
Figure 1, for the purpose of operating the feed mechanisni, which remains to be
described. The feed mechanism is a carriage, reciprocating upon bolster-plate 1,
and consisting of two guiding slides 14, Figure 3, a flat plate 60 Figure 1, by which
slides 14 are joined together, and a swinging bar 61, which is capable of automatically
gripping in position upon plate 60, the ribbon or strip of brass 67, from which ferrules
are to be formed.
It remains to mention the tripping mechanism, by means of which the machine
is stopped in case of accidental failure of the primary punches to perform their
functions. In plate 32 is set a sliding plate 62, which is adapted to slightly enter
the mouth of any one of the several pockets 13 which may be presented empty as
shown in Figure 4.
This sliding plate is connected by lever 63 and rods 64 and 65
with a tripping lever, not shown in the drawings, acting upon a key 70, Figure 2,
by which pulley 66 engages the main shaft 27. This tripping mechanism which is
not fully shown in the drawings, is not peculiar in any other respect than that of
being capable of being brought into action by the absence of a ferrule from that
particular pocket 13 which is for the time being directly under die 34.
Such being the construction of my improved ferrule machine, its mode of
operation remains to be described. The strip of brass or other metal 67, of suitable
width and of indefinite length, being the stock, which is to be worked up into
ferrules, is first inserted by hand between parts 60 and 61 of the described inter-
mittently reciprocating feed carrier, so that a portion of the strip 67 is brought into
position under the primary punches 3 and 5. Then, as pulley 66 begins to turn,
slide 7, descending through the position in which the same is shown in Figure 2,
and into the position in which the same is shown in Figure 3, presses the blanking
punch 3 into die 9, and thereby cuts from the strip, or ribbon 67, a disc or circular
blank 68. Meanwhile, and until the machine is fully under way the described
tripping mechanism is held inoperative by the hand of the operator. After the
described formation of blank 68, the same is held in the bottom of die 9, between
punch 3 and die 10, while cams 28 are on the dwell. Then, as pulley 66 continues
turning, the main crank, operating through pitman 29, forces the drawing punch 5
down into die 10; and blank 68 is thereby drawn in the usual manner into the
form of a cylindrical ferrule, closed at the bottom, and is carried down through
the annular spring stripper 11 into a pocket 13 of turret 12. Then slide 7 ascends,
while the described ferrule with closed bottom, being prevented by stripper 11
from accompanying punch 5 in its upward movement, is left with its mouth open
upward in that pocket. Next, turret 12, being impelled by rock-arm 25, through
pitman 26, lever 19 and ratchet and pawl 17 and 18, is rotated one step, namely
through an angle representing the distance between two adjacent pockets 13; so

page_text: that such partly made ferrule is carried away from the path of punch 5, and the
next pocket 13 is brought to rest empty under that punch. As the machine
continues working, all the described steps are repeated as many times as are
necessary to bring the first-mentioned pocket and ferrule into position under die 34..
Then at the next following descent of slide 7, die 34, entering the last-mentioned
ferrule from above, forces the latter.down on to punch 35, as shown in Figure 3,.
so that a flat circular plate, or disc 71, is cut from the bottom of that ferrule.
Next, the rack 50, being propelled by rock-arm 51, turns the nut 43 down upon.
the die-holder 33, and thereby depresses shell 41, so that the revolving cutter 42,.
being pressed down into the upper edge of the ferrule, trims off all.irregularities,
and leaves the ferrule finished. After cams 28 have turned so far as to allow
slide 7, drawn by springs 30, to begin to rise, the knock-out 48, being actuated by
the guided lever 54 and the stationary latch 53, pushes disc 71 out of die 34,
leaving that disc loose in the ferrule. By means of the spring stripper 37 and 38,
the ferrule is .disengaged from punch 35, and is restored to the same position
which it previously occupied in pocket 13. The completed ferrule is afterwards
discharged from the turret 12, and from the machine, through a hole, which is not.
shown in the drawings, leading from a point under the path of pockets 13, through.
the bed-plate 15.
Whenever, during the operation of the machine, a pocket 13 is presented to
slide 62 empty, or accidentally unoccupied by any ferrule, the slide automatically
enters the mouth of that pocket; and by this movement the beforementioned.
tripping mechanism is brought into action, and pulley 66 is let loose upon.
shaft 27 by the withdrawal of key 70. So the machine stops, awaiting the attention.
of the operator.
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 :-
1. In a machine for the manufacture of ferrules, or other like articles, a primary
cutting punch and die, a drawing punch and die, a secondary cutting punch and
die, a triminer, and mechanism for operating such punches, dies and trimmer, in.
combination with transferring mechanism between the primary and secondary
cutting punches, substantially as and for the purpose specified..
2. A primary cutting punch and die, mechanism for feeding stock to such punch.
and die, a drawing punch and die, a secondary cutting punch and die, a trimmer,.
and mechanism for operating such punches, dies and trimmer, in combination with
transferring mechanism for feeding to such secondary cutting punch the stock
which has previously been subjected to the operation of the primary cutting punch
and of the drawing punch, substantially as and for the purpose specified.
3. A primary cutting punch and die, a drawing punch and die, a secondary
cutting punch and die, and mechanism for operating said punches and dies, in com-
bination with a rotary trimmer, and transferring mechanism for feeding the partly
finished work to said secondary punch, substantially as and for the purpose specified..
4. A primary cutting punch and die, a drawing punch and die, a secondary cutting
punch and die, mechanism for operating said punches and dies, a reciprocating
feed currier for supplying stock to the primary cutting punch, and intermittently
moving mechanism for transferring the partly manufactured stock to said secondary
cutting punch, in combination with a rotary trimmer, substantially as and for the
purpose specified.
5. A die and punch, whose reciprocating member is made fast in a reciprocating
holder, mechanism for imparting reciprocating motion to such holder, and rotary
mechanism, which is mounted upon such reciprocating holder and carries a rotary
cutter, in combination with mechanism for imparting to such rotary mechanism and
cutter a reciprocating movement, relative to such reciprocating holder, substantially
as and for the purpose specified.
6. A reciprocating die and a stationary punch therefor, a cylindrical holder for

page_text: said reciprocating die, mechanism for driving said die-holder and die, a rotary
grooved sleeve upon said die-holder, a nut upon said die-holder, provided with
peripheral teeth and with a bridle, which takes into the groove of said rotary
sleeve, and a reciprocating rack, which engages said nut by means of said teeth, in
combination with a combined sleeve and pulley, which is keyed to said grooved
sleeve, and a revolving cutter, which is carried by such pulley sleeve, substantially
as and for the purpose specified.
7. A die and punch, whose reciprocating member is provided with a cylindrical
holder, mechanism for imparting reciprocating motion to such holder, and rotary
mechanism, carrying a cutter, and mounted upon such cylindrical holder, in
combination with mechanism for moving such rotary cutter-carrying mechanism
longitudinally upon such reciprocating holder, substantially as and for the purpose
specified.
Dated this 10th dow of Tule 1804
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.