An Improved Machine for Making Rivets.
Year: 1891

page_text: Date of Application, 3rd Jan., 1891
Complete Specification Left, 3rd Nov., 1891-Accepted, 2nd Jan., 1892
PROVISIONAL SPECIFICATION.
An Improved Machine for Making Rivets.
I, JOHN PITT BAYLY, of 18 Fulham Place, Paddington, in the County of
London, Patent Agent, do hereby declare the nature of this invention (a com-
munication to me from abroad by Frank Danks, of Troy, New York, U.S.A.
Inventor,) to be as follows:-
This invention relates to an improved machine for making rivets, and the object
of the invention is to provide a machine of this class which will make rivets
automatically from bar-iron. The invention comprises a suitable die-wheel, which
is mounted in the framework in such manner as to be operated at each movement
to make a quarter turn with alternating periods of rest. Die-stocks are arranged
in the perimeter of the die-wheel, so as to be diametrically opposite. Sinks are
made in the die-stocks, and are constructed to receive the rivet blanks. These
sinks are provided with a shoulder, against which the inner ends of the blanks abut,
and a tubular-passage-way opens out from the sinks back of the shoulder therein.
The rivets are headed by means of a suitable plunger which is mounted in suitable
guides, and is adapted to be brought down by the action of the cam mounted upon
the main shaft upon the end of the rivet blank. The inner side of this plunger is
provided with recesses to form the heads of the rivets. A suitable plunger is also
timed to push the rivets from out of the sinks when headed. The bar-iron is fed
to the die-wheel between rollers which are provided with grooves, and are operated
to rotate while the die-wheel is at rest, and to cease rotating when the dic-wheel is
moving. Suitable blades are arranged in front of these rollers and are timed to
cut off rivet-blanks from the rod at the proper moment. These cutters are
operated by suitable cam mechanism, which derives its motion from the main shaft.
Dated this 3rd day of January 1891.
J. P. BAYLY,
Applicant.
COMPLETE SPECIFICATION.
An Improved Machine for Making Rivets.
I, JOHN PITT BAYLY, of 18 Fulham Place, Paddington, in the County of
London, Patent Agent, do hereby declare the nature of this invention (a com-
munication to me from abroad by Frank Danks, of Troy, New York, U.S.A.
Inventor,) 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 improvements in machines for making rivets, and my
invention has for its object an increased measure of production and a new and
better adaptation of machinery to do the work.
My invention consists, as will be more fully detailed hereinafter in connection
with its illustration, in the combination of a die-wheel having rivet-dies arranged
within the perimeter thereof, said die-wheel being actuated with regular inter-
mittent periods of motion and alternating periods of rest, a feeding mechanism
intermittently operated to enter the ends of the rods (from which the rivets are
made) within the dies on said die-wheel, a blade operated to cut off the rivet-
blanks from the ends of the rods at a proper blank length, a swaging-die
reciprocatingly operated to engage with the rivet-blanks where projecting beyond
the rivet-dies and to form the heads thereon, and a plunger combined with each of
the rivet-dies and operated to push the finished rivets from out the dies.

page_text: My invention consists of the sub-combination of the parts of the mechanism
shown and described where performing specific functions, as will be designated in
the claims.
Accompanying this Specification to form a part of it there are four plates of
drawings containing eight figures illustrating my invention, with the same
designation of parts by letter-reference used in all of them.
.
Of the illustrations,
Fig. 1 is a perspective of my improved rivet-producing machine, and shown in
this illustration with what is its front side, and one end facing the view.
Fig. 2 is another perspective of the same machine shown with what is its rear end
and one side facing the view.
Fig. 3 is a vertical section taken centrally from front to rear.
Fig. 4 is a side elevation of the blade used to cut the rivet-blanks from the rods
supplied to the machine.
Fig. 5 is a section of one of the rivet-dies shown as removed from the die-
wheel.
Fig. 6 is a perspective of one of the cams, there being one on each side of the
interior of the machine which operates the plunger to force the rivets out from
the dies.
Fig. 7 is a section taken on the line ¹¹ of Fig. 1.
Fig. 8 shows one of the plungers, illustrated as detached.
The several parts of the mechanism thus illustrated are designated by letter-
reference, and the functions of the parts is described as follows:
The letter F designates the frame of the machine; S₁, its driving shaft, receiving
power from the pulley P.
The letter S designates the die-wheel shaft; and W the die-wheel arranged
thereon to turn therewith.
The letter A designates the crank-disc arranged on the shaft S'; C, a connecting-
rod operated thereby; R, a ratchet arranged on and keyed to the die-wheel
shaft S; L, (Figs. 1 and 7) a latch-pawl pivoted at its upper end to the lower end
of the connecting-rod C, and at its other end to the die-wheel shaft outside of the
ratchet-wheel R. This latch-pawl L is arranged to operate in an opening O made
in the pawl-arm a, and is attached to the inner face of the leaf-spring d, which
latter, at its end e, is secured to the arm a with the pawl proper p" adapted to
move in the opening O as passing along over the bevels 64 to engage with the
stop of the ratchet proper. This ratchet has four stops or teeth 66 on its side
face, and as the pawl-arm a is operated by the connecting-rod C and latch-arm a,
the pawl proper, at each revolution of the shaft S', will engage with one of the
stops to move the ratchet R and die-wheel shaft S2 one-quarter turn, and then
reciprocatingly move to engage with another ratchet-tooth or stop, it being shown
in Figs. 1 and 7.
The letter D designates a pawl-dog that is pivoted to the frame Fat p' and
arranged to engage with one of the stops or teeth n² on the outer side face of the
ratchet, and the function of this pawl-dog is that of a detent to make positive the
periodic stops of the. die-wheel and insure accuracy iu the positioning of the die-
wheel relatively to the swaging-die.
The die-wheel W has four die-stocks D² arranged in recesses made in its outer
face, the die-stocks being placed in the outer face of said wheel on a line parallel
to the axis of the latter and so as to be diametrically opposite. The die-stocks D
are made with sinks d³, which latter are round passages formed in the stock D at
right angles to the top and bottom thereof, as shown at Fig. 5, and these die-sinks
and passages are each made with a shoulder h¹ which serves as a stop to regulate
the distance at which the rod from which the rivet blanks are to be cut shall enter
the dies. Those parts of the die-passages d³ which are beyond the shoulder ' and
made of less diameter, as indicated at d³, are used in connection with plungers 1
for forcing the finished rivets from out the dies, the operation of which will be
described hereinafter.
1

page_text: The letter C designates a cam constructed on the driving-shaft S', and Ha
header that is arranged to move in slides S made in the machine-frame, and shown
at Fig. 3. This header has within the lower end a recess r² adapted to receive and
have secured therein a heading die * made with a series of sinks corresponding
in number to the number of the die-sinks or passages d³ made in each of the die-
stocks d². Each of the sinks v, as shown at Fig. 3, has the form of the rivet-head,
and when the header descends these sinks are so constructed and arranged that each
of them will engage with the outer ends of one of the rivet-blanks where projecting
from each of the die-passages d³, and in descending will swage thercon a head
corresponding to the form of the sinks v. This head is operated by the cam C² to
engage with the heads of the rivet-blanks in one of the die-holders at each
revolution of the shaft S¹.
The letter designates an f-formed lever which is pivoted at p to the frame F,
and at its upper end is made with a curved head ho, and the letter a designates an
arm that is projected inwardly from the side of said lever through the
opening O² made in the frame F to enter the recesses 7 made in the rear face of
the header H, as shown at Fig. 3.
The letter S designates a spiral-spring, one end of which, at e³, is connected to
the frame F, and the other end e is connected to the lower end of the lever f'.
As thus constructed, when the header H is operated to descend it so moves against
the force of the spring S6 from the engagement which the arm at of the lever f¹
makes with the recess of the header and the connection made by said spring with
the frame and with said lever f¹. When the operation of the cam C2 ceases then
the combined action of the spring Se and the lever f¹ causes the header to rise
away from its engagement with the die-stocks and the rivets therein.
The letter B designates a cutting-blade, which is shown in position within the
machine at Figs. 1 and 3, and as separated therefrom at Fig. 4. This blade is
arranged to be moved in vertical slides J made in each side of the frame-
extension F, as shown at Figs. 1 and 3, and it makes a shear engagement with the
outer edge of the plate P when raised up. The upper edge of this blade is made
with recesses that bevel upwardly and inwardly with a cuniform concavity.
The letter designates lugs, of which there is one on the die-wheel at each side
thereof, as shown at Figs. 1 and 3, horizontally in line with each other. As the
die-wheel turns these lugs each engage with one of the lips 2 (Figs. 3 and 4) on
each end E of the blade to move the latter vertically in its slides, and so as to cut
rivet-blanks from off the ends of the rods, and when the engagement between the
lugs and the blade ceases as the die-wheel revolves then the blade B by gravity
falls down in the slides to repeat the operation, when, as the die-wheel turns the
lugs l, again engage with the blade as before.
The letters R2 and R³ designate feeding-rolls arranged one above the other, and
having bearings 6 in the frame-extension F2. Each of these rolls has annular
grooves g made therein, so as to be vertically in line in each of the rolls. The
upper one of these rolls and that indicated at R2 has on its shaft S7 a pulley 7, and
the letter B designates a sprocket-belt adapted to run thereon and on the pulley p
arranged on the shaft S¹º.
The letter C designates a cam arranged on the driving-pulley P, which, at cach
revolution of the latter, makes a traction engagement with the pulley p' to operate
the latter, the belt B, the pulley p, and the rolls R2 and R³. The function of these
rolls R2 and R3, as thus constructed and arranged, is to at intervals move the rods
from which the rivet-blanks are cut and cause them to enter the dies, and to hold
the rods therein while being cut.
The letters I designate plungers adapted to move outwardly and inwardly in
recesses made in the die-wheel from side to side thereof in line with its axis.
Each of these plungers is constructed with a series of pins p³ projecting from the
inner face thereof at right angles thereto and corresponding in number to the
number of die-passages d³ in each of the die-stocks D, and these pins, or the plungers
proper I, are caused to move in the recesses ², and the pins are caused to pass

page_text: through the passages d³ to enter the passages d³ from the inner end thereof to force
the rivets from out the die-passages. One of the plungers is shown as detached at
Fig. 8, and they are all shown as in position within the recesses at Fig. 3. These
plungers I where within the recesses have their ends E' extended beyond the sides
of the die-wheel, and the letter N designates a plate provided with a cam K², there
being one of said plates attached to the frame upon each of its opposite and inner
sides, one of them being shown in position at Fig. 3. As the die-wheel revolves
when the plunger ends E, where projecting beyond the dic-wheel, come in contact
with the cam K² on the plate N at each side of the frame interior, this engagement
moves each one of the plungers so engaged outwardly and causes the pins p³ thereon
to pass through the die-passages d³ to engage with the inner ends of the rivets
thereon, so as to force them therefrom. The plates N on which the cam K² is
located, as shown at Fig. 3, are secured to the interior frame sides, so as to be back
of the axial centre of the die-wheel shaft, so that the cams K2 will only engage
with the plunger ends when the upper face of the die-wheel is passing downwardly
and rearwardly and after the heads have been swaged on the rivets, as before
described.
The operation of the parts thus constructed and arranged is as follows: Power
being applied to the pulley P when the cam C thereon engages with the pulley p²
it operates the latter during such engagement, also the sprocket-belt B and the
pulley p, as well as rolls R2 and R3, to turn and to stop turning when the engage-
ment of the cam C with the pulley p² ceases. As thus constructed, the feeding-
rollers R2 and R³ are operated with alternating periods of rotation and intermittent
periods of rest. Rods of iron that have been heated being entered between the
rolls R2 and R3, so that each of them is within and between one of the annular
grooves in each of the two rolls where vertically in line, as the rolls turn inter-
mittently the entered ends of each of the rods will be moved inwardly so as to enter
one of the die-sinks or passages, of that one of the die-stocks which is at the front,
with the entered ends of the rods abutting against the shoulder made in each of
the sinks or passages.
While in this position the blade B is operated by the die-
wheel to rise and cut off from the ends of the rods the proper blank-lengths, when
the die-wheel, making another quarter-turn brings the die-stock containing the
blanks uppermost on the die-wheel when the header I descends to put on the heads
and then recedes, and while the die-wheel is making another quarter-turn the
ends E E of the plunger I coming in contact with the cam K³ force outwardly the
plunger and its pins within the part ds of the die-sinks or passages, which forces
the completed rivets from out of the sinks.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what I
claim is:
1. In a machine for making rivets, the combination, with a die-wheel operated at
each movement to make a quarter-turn with alternating periods of rest, of die-stocks
arranged in the perimeter thereof, so as to be diametrically opposite, sinks made in
the die-stocks constructed to receive the rivet-blanks, said sinks being provided
with a shoulder against which the inner ends of the blanks abut, and a tubular
passage-way opening out from said sinks back of the shoulder therein, a header
reciprocatingly operated to descend onto the rivet-blanks where projecting from
said sinks, and a plunger provided with pins adapted to enter the tubular passages
of the dic-stocks where back of the sinks constructed and operated to push the
rivets from the sinks, substantially in the manner as and for the purpose set forth.
2. In a machine for making rivets, the combination, with the stocks D² made
with sinks d³, shoulders and tube-form passages d³, said sinks being constructed
and arranged to receive rivet-blanks with the inner ends thereof abutting against
said shoulders while being headed, of the plunger I, made with pins and adapted
to enter said passages and operated by said plunger to force the rivets from out said
sinks, substantially in the manner as and for the purpose set forth.

page_text: 3. The combination, with the die-wheel W constructed and arranged to be
operated substantially as described, of the stocks D2, made with the sinks d³,
shoulders, and tubular passage-ways d³, said stocks being arranged in the perimeter
of said die-wheel, the recesses made in said die-wheel the plungers I, arranged in said
recesses constructed to move therein and provided with pins p³ to enter the passages
in said die-stocks and the cam K³, arranged on each of the inner faces of the
machine-frame, adapted to engage with said plungers, substantially in the manner
as and for the purpose set forth.
4. The combination, with the die-wheel W, constructed with die-stocks D³,
having sinks d³, made with shoulders h¹ and tube-form passages d³, said die-wheel
being operated to make a quarter revolution, with alternating periods of rest at
each rotation of the driving-shaft, substantially as described, of the header H,
adapted to move in slides in the machine-frame, and made with a series of sinks v
on its lower end, and the cam C2 on the driving-shaft arranged to operate said
header while the die-wheel is at rest, substantially in the manner as and for the
purpose set forth.
5. The combination, with the die-wheel W, constructed with die-stocks D³,
having sinks d³, made with shoulders and tube-form passages d³, said die-wheel
being operated to make a quarter-turn at each revolution of the driving-shaft,
substantially as described, of the header H, having a series of sinks v in its lower
end, and made with a recess in its rear face, a lever f¹, pivoted to the machine-
frame at p, and having an arm a¹ (Fig. 3) adapted to enter the recesses in the
back of said header, and a spring Se connecting the lower end of said lever with the
machine-frame, substantially in the manner as and for the purpose set forth.
6. The combination, with the die-wheel W, made with lugs I, and having rivet-
form die-sinks in its perimeter, said wheel being constructed and operated to make
a quarter turn with regular intermittent periods of rest at each revolution of the
driving-shaft, substantially as described, of the rollers R2 and R³ made with annular
grooves g' that are vertically in line in both rollers, said rollers being operated to
rotate when the die-wheel is at rest, and to cease rotating when the die-wheel is
moving, and a blade B operated to engage with the lugs of the die-wheel to rise
vertically, and when such engagement with the die-wheel ceases to fall by gravity,
substantially in the manner as and for the purpose set forth.
7. The combination, with the die-wheel W, having rivet-form dies in its perimeter,
said die-wheel being constructed and operated to make a quarter-turn, with regular
alternating periods of rest at each rotation of the driving-shaft, substantially as
described, of the rollers R2 and R3, made with the encircling grooves g¹ and
operated to rotate while the die-wheel is at rest, and to cease rotating when the
die-wheel is moving, substantially in the manner as and for the purposes set forth.
8. The combination, with the die-wheel W, made with the lugs 1, and having
rivet-form sinks in its perimeter, said die-wheel being constructed and arranged to
make a quarter turn with alternating periods of rest at each revolution of the
driving-shaft, substantially as described, of the rollers R2 and R3, made with the
encircling grooves g', and operated to rotate while the die-wheel is at rest, and to
cease rotating when the die-wheel is moving the blade B, constructed with vertical
slide-ways and adapted to move vertically in front of the die-wheel, substantially as
described, and the header H, made with the sinks in its lower end, and constructed
to be operated by the driving-shaft while the die-wheel is at rest, substantially in
the manner as and for the purposes set forth.
”
Nah- 1901
J. P. BAYLY,
Applicant.