prove Safety-Pin Heading
Year: 1886

page_text: I, JOEL JENKINS, of Montclair, Essex County, New Jersey, United States of
America, Manufacturer, 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:-
This invention relates to improved machinery for forming the heads or shields
for safety-pins, and automatically placing and fastening the same upon the wire-
blank to constitute the pin, and consists in the novel construction, combination
and arrangement of mechanical devices hereinafter fully described and illustrated
in the accompanying drawings.
In said drawings;
Figure 1 is a front elevation of my Improved Safety-Pin Heading Machine.
Figure 2 a horizontal or transverse section in line x, x, of Figure 1.
Figure 3, a section in line y, y; Figure 4 a section in line 2, s; and Figure 5 a
section in line w, w, of Figure 2.
Figure 6, a detached view in perspective of the intermittently-rotating carrier in
which the beading slides are made to reciprocate.
.
Figure 16, a detached, sectional view in line z, z, of Figure 4, illustrating the
pawl by which the carrier is actuated.
Figure 17, a view in perspective of one of the heading slides detached.
Figure 7 a front view of a modification in the construction of the machine,
wherein the rotating carrier from which the heads are delivered to the pin-blanks,
is made to revolve in a horizontal instead of a vertical plane.
Figure 8, a section in line x, x, of Figure 7.
Figure 9, an enlarged side view of the rotating carrier detached and partly in
section.
Figure 10, a central section in line y, y, of Figure 9.
Figure 11, an enlarged, detached view in perspective, of the mandrel used in this
machine to re-enforce and support the bend in the wire-blank, the mandrel being
illustrated in its active position.
.
Figure 12, an enlarged elevation of the upper end of the bar carrying the
mandrel, illustrating its pivotal connection to the punch-bar.
Figure 13, a transverse section, illustrating in detail the device for lifting the
wire-blanks from the transverse grooves in the conveying shafts, when said grooves
are made to completely encircle the shafts; Figure 14, being a plan view thereof..

page_text: Figure 15, a detached view in perspective of one of the heads to be affixed to
the pin-blank.
.
Similar letters indicate like parts in all of the figures.
In the drawings the base and frame of the machine are indicated by the
numerals 10, 10; the main driving-shaft by the number 11; and the parallel
shaft actuating the punches by the number 12. These shafts are all mounted in
suitable bearings in the frame 10.
The shaft 12 is placed above, but slightly in front of the main shaft 11, to which
it is geared by a train of spur-wheels 13, 14, and 15, and it is central over a fixed
circular bed A supported upon the base 10.
16, 16, are parallel, spirally-grooved. conveying-shafts, rotating in unison, such as
are common to pin-making machines of this class and whose function it is to carry
the blanks or bits of wire 17, 17, to form the pins, forward through the machine.
These shafts are mounted parallel with the main driving shaft 11. Their upper
surfaces are brought on a level with the top of an anvil 18, (see Figures 5 and 8).
The spiral grooves m, m, thereon are wide enough to permit the blanks or bits of
wire 17, to lay therein at a right angle to the length of the shafts.
'
To arrest the movement of the wire-blanks momentarily over the anvil 18,
without arresting the continuous rotation of the shafts, the conveying grooves m, m,
which are elsewhere spiral, are made to follow, at a point immediately in front of
the anvil, a direction at a right angle to the length of the shaft as shown at m¹,
Figures 3 and 6. If the speed of rotation of the shaft is so great as that sufficient
time will not be allowed for the required movements of the mechanism to head a
blank within the time required for one rotation of the shaft, this transverse
portion m¹, of the groove is carried entirely around the shaft, as shown at m², m²,
in Figures 13 and 14, so that the blank shall remain stationary until it is lifted
forward by auxilliary devices which will be hereinafter more fully described.
Otherwise each of the transverse grooves m, assumes a spiral direction before it
has fully encircled the shaft, as shown in Figures 1, 2 and 7, so that the wire-
blank 17, momentarily arrested in said transverse grooves m, upon each shaft,
shall be made to move forward thereon before the shafts have made a complete'
revolution.
The wire pin-blanks 17, 17, are pointed in the usual manner and are bent at one
end as shown in the drawings, before reaching the mechanism herein described for
heading them. The devices for pointing and bending the blanks are well known
in the art and need not therefor be particularly described.
A supporting-block 19 is preferably placed in front of the anvil 18 as shown in
Figure 5, wherein bearings are provided for the shafts 16, 16, and a plate or pro-
jection 20 is fitted or formed at the outer edge of said supporting-block against
which the outer end of each wire-blank finds support when a head or shield is
being fitted thereon over the anvil, as shown in Figure 5.
.
The circular bed A is formed with an annular recess in its upper side encircling
a central stud or spindle A¹ and the base of the stud A', is encircled by a groove a
cut in the bottom of the recess as shown in Figures 3, 4 and 5.
Within the annular recess a, in the bed A, is fitted a circular carrier B (see
Figure 6) formed with a central opening whereby it is adapted to fit upon and
rotate about the stud A¹. This carrier is shouldered upon its inner rim as shown
at d, Figure 6, and diametric slots b, b, b, are cut on its under side.
A slide C (see Figures 8, 3, 4 and 5) is fitted in each radial groove b, each slide
being so proportioned in length as to extend from the stud A, against which its
inner end bears, nearly to the outer periphery of the carrier B, (see Figures 5
and 6). A lug g, (see Figure 8) projects from, the under side of each slide Č, at its
inner end to fit into the annular groove a, in the bottom of the annular recess in
the bed A, as shown in Figures 3, 4 and 5. The forward end of the slide is made
with a projection r, on its upper edge and slopes back thence on its under side for
a distance equal to the length of a finished head or shield..

page_text: A diametric groove H, is cut on the under side of the bed A, in line with the
anvil 18 and at a right angle with the conveying shafts 16, 16. Within this
groove or extended recess H, a reciprocating slide-bar H' is fitted. The upper facé:
of the bar near its front end is transversely, grooved with a recess a³, (see Figure 5).
corresponding in its form and dimensions with the annular groove a, in the bed A,
so that it may register therewith and form in connection with it, when the
two are brought into register,-a continuation thereof. At a distance from the
groove a, equal to the diameter of the central stud A¹, a second recess a³, (see-
Figure 5) is cut in the upper face of the bar H¹, of a length equal to the distance
from the front end of one of the slides C when brought opposite to the anvil 18,
out to the anvil, and which corresponds to the stroke or extent of movement of the
bar in its reciprocation.
A lateral opening.L, is cut through the side of the bed A next to the anvil, in
line with the slide-bar H and on a level with the top of the anvil 18, as shown in
Figure 5. This opening L is of suitable dimensions to permit the slides C, when
brought into registry therewith, to work out through it.
The slide-bar H¹, is actuated by means of an eccentric wheel 21, on the main
shaft 11, the bar being connected to a strap on the eccentric by means of a link 22,
as shown in Figure 3.
.:
When the rotating carrier B is fitted in place upon the axial stud A¹, its upper
face is on a level with the upper face of the rim of the circular bed A. This rim
is shouldered internally at n, (see Figures 3, 4 and 5) and upon the annular offset
thus formed, a curved filling-plate I is fitted of a length sufficient to extend about
two thirds, more or less, of the circumference of the recess, and of a width which is
so much wider than the offset, as to overlap and cover the shoulder d, (Figure 6,)
of the rotating head B. The rim of the bed-plate A, for the remaining third of the
circumference, is cut away to the level of the offset and the space filled by a die-
plate E, (see Figures 2, 3, 4 and 5,) adapted to fit therein, and which is made fast
to the bed-plate by screws i, i, (see Figure 2). A drawing-die e, is formed in said
plate E, immediately over the annular recess in the bed-plate A in which the
carrier revolves and near to its outer periphery so that a head or shield drawn
through the die will drop into the end of one of the slots b, in the carrier.
An annular plate F, of an external diameter corresponding with that of the
curved plate I, but of an inner diameter so far greater as that when placed upon
the plate I, it will overlap the top of the carrier B, is fitted over the plates I and E,
and is secured to the carrier to rotate with it over said plates, by means of
screws 8, 8, as shown in Figure 2.
Six openings U, U, are cut at diametrically opposite points and at equal distances
apart in this annular plate F, each in shape conforming to the form of sheet-metal
blanks required to make a safety-pin head or shield. These openings U, U, are
in position to pass centrally over the drawing die, e, in the plate E, so that they
constitute recesses to receive and contain the blanks for the heads or shields.
A die-plate G, for cutting the blanks is mounted to extend radially over-the
carrying-plate F, being supported at one end upon the top of the central stud A¹
of the bed-plate, and at the other upon the rim of the bed-plate, and secured to
each as shown in Figures 2, and 3. A cutting die P is formed in said plate in
position so that it may register with the recesses U, U, in the blank-carrying
plate F beneath it, whereby, when a blank is cut in the die, it will drop into one
of said recesses.
'
A strip of sheet metal is fed forward with an intermittent movement transversely
over said die-opening P, by means of rollers, in the customary manner, which need
not herein be described.
1
The cutting and drawing dies are so located with reference to the slots b, b, of
the rotating-carrier B, as that when one of said slots is in front of the anvil 18, 86
that the slide C in the slot is in line to move out towards the anvil, the radial slot
containing the plunger next preceding, will be under the drawing die e, in position
to receive the head or shield drawn and formed in said die from the blank, whilst
:

page_text: the second radial slot next preceding it will be under the cutting die P. The
carrying-plate F, is also so fitted as that when at rest, the recesses U, U, therein
shall each be over one of the slides C, so that when any one slide is in line with the
anvil, one of the recesses will be over the drawing die, and another under the cutting
die as illustrated in Figure 4.
The upper face of the carrier B, is recessed at equal intervals with inclined
notches R, R, R, the lower end of each terminating in line with the center of the
recesses U, U, in the plate F. These notches constitute a ratch to be engaged by
a bevelled-face tooth or pawl S, (shown in detail in Figure 7), fitted in a lever D
pivotted upon the stud A¹, (see Figures 5 and 6) to which the lever is secured..
This lever D is made to oscillate upon the stud A¹, as its axia, by means of a
pitman D, coupled to the outer end of the lever D by a universal joint, (as shown
in Figures 2 and 3), and which is connected to the strap 24 of an eccentric
wheel 25 upon the main shaft 11, as shown in Figure 2.
The pawl S is forced down upon the plate B, and thereby made to engage
automatically the notches R, R, therein, by means of a spring T, on the lever D,
(see Fig. 4).
The cutting, drawing and clamping punches are all secured to a block 26,
mounted to slide vertically to and from the bed A, and anvil 18, in suitable:
ways in the standards 27, 27, of the frame 10,-10, of the machine, as shown in
Figure 1.
The reciprocating movement of this block 26, by which the punches are operated
simultaneously, is obtained by means of a crank 28 on the upper shaft 12 to which
the block 26 is coupled by an adjustable pitman 30, (see Figure 1). The cutting-
punch 31, descends vertically into the cutting-die P, in the plate G; the drawing
punch 32 into the drawing-die e; and the clamping punch 33, upon the anvil 18.
The movement of all parts of the machine except the main shaft are inter-
mittent.
In the operation of the machine, constructed as above described, a strip of sheet-
metal is fed forward in the customary manner under the cutting. punch 31, and
over the die P; (Figure 2). The descent of the punch will cut out a blank from
the strip and the blank will drop into the recess Ů, in the annular carrying-plate F,
beneath it. A blank is thus cut and deposited in the carrying-plate at each
movement of the punch-block 26. As the punch-block rises, the carrying-plate F,
is carried forward one point by the action of the oscillating lever D, and its pawl S,
upon the ratchet notches R, R, in the top of the carrier B to which the plate F is
secured. At the second move, the blank is carried over the drawing die e, and, as
the punch-block 26 descends, the blank is forced through the die by the drawing
punch 32 and is formed into a pin-head or shield, 86, and drops, as shown in
Figure 4, in a vertical position with its open end up in front of the slide C in the
radial slot of the carrier B which at the moment is under the die. At the next
move of the carrier B, the slide with the head 86 in front of it, is brought into
line with the bar H¹ and anvil 18, as shown in Figure 5. So soon as the move-
ment of the head is completed and the punch-block is rising, this reciprocating-
bar, H, moves forward towards the anvil and carries with it the slide C. The
projection, on the slide, first striking the upper end of the head 86, tips it
forward, and the head is then pushed forward in a horizontal position through the
opening in, the rim of the carrier B out upon the anvil 18, and onto the bent end
of the pin 17, which has been brought to the anvil and is momentarily arrested
thereon by means of the conveying shafts 16, 16, as herein before described. So
Boon as the head 86 is upon the pin-blank, the slide C is withdrawn by the return
of the bar H, and in the meantime the clamping punch 33 descending simul-
taneously with the cutting and drawing punches, closes the head upon the
wire-blank and secures it firmly thereon. Thus, as the block 26 descends, a
blank is cut at one point, drawn into a head at a second point, and a head is
closed upon a pin-blank on the anvil; and while the block ascends, the headed
blank is carried from the anvil, another brought to its place thereon, and the
+

page_text: carrier B, is rotated one notch, thereby changing the position of the several
recesses in the carrying-plate F, and carrying a finished head 86 with a slide C,
back of it, from the drawing-die e, forward into line with the bar H¹, whose
independent, longitudinally-reciprocating movement then follows and is completed
during the downward movement of the block just before the cutting, drawing and
clamping operations are simultaneously performed by the several punches.
It is evident that a horizontal carrying-wheel, or an endless chain, or other
known devices for the purpose of conveying the wire-blanks 17, 17, to and from
the anvil 18, may be used as equivalents for the spirally-grooved conveying
shafts 16, 16. Also, that a soldering machine may be employed to solder the
heads fitted upon the wire-blanks, in which case the clamping punch 33 may be
dispensed with; and furthermore, that the heading machine may be combined
with any suitable devices for bending and pointing the wire-blanks, before or after
they are headed in manner as described.
In the modification of the invention illustrated in the drawings Figures 7 to 12,
a carrier, rotating in a vertical instead of a horizontal plane is employed to convey
the heads from the forming mechanism to the anvil, as an equivalent substitute for.
that already described.
This carrier or feed-wheel 35, (see Figs. 8 and 9) substituted for the carrier B,
Figs. 2-6, is mounted upon a stud-axle 36 projecting from the frame 10, (see
Figure 7) and its axis is in the same horizontal plane as the anvil 18, and parallel
with the main shaft 11, and conveying shafts A¹, A¹. Its periphery is made to
pass in close proximity to the anvil (see Figure 8). Its rim is of a width exceeding
that of the heads 86, to be fitted upon the pins 17, and of a depth greater than
their length, and it is pierced with a series of transverse, radial slots 37, 37, (see
Figures 9 and 10) in each of which a slide 38 is fitted to move freely, the outer
end of each slide being notched or recessed to receive and embrace one of the
heads. The inner end of each slide terminates in an arm 39, which passes through
an opening in an inner, concentric plate 40, and is fitted with a transverse pin 41,
which, when the outer end of the plate 38 is flush with the outer periphery of the
rim, is borne against said plate 38 by means of a coiled spring 42 interposed
between the pin and the inner face of the rim of the wheel. A suitable bearing
is obtained for the wheel upon the stud-axle 36 by means of a hub 52 on one side
thereof. The inner end of the stud-axle is pierced diametrically with a horizontal
aperture through which a rod 43 is carried, and the inner end of said rod is made
to bear against the inner end of the arm 39 of the one slide 38 which is, at the
moment, in the same horizontal plane. Its outer end is bent (as shown in Figure 10)
to pass around the rim of the wheel 35 and is extended to reach a cam-wheel 44
upon the main shaft 11 of the machine, (see Fig. 8) and engage by means of a
friction-roller 45 upon one side thereof, a cam-groove upon the face of said
wheel 44, (see dotted lines in Figure 8,) whereby a positive reciprocating move-
ment is obtained at each revolution of the wheel. This movement is sufficient to
cause the rod 43 to force the outer ends of the radial slides 38, 38, each in turn,
out from the rim of the wheel 35 over the anvil 18, far enough to carry the
head fitted in the recess in the end of the plate 38 over the bent end of
the one wire-blank 17 which may be in position over and upon the anvil to
receive it.
The carrier 35 is rotated intermittently and moved forward at each stroke far
enough to bring the radial slides 38, 38, successively into line with the top of the
anvil, by means of a spring-actuated pawl 46, (see Figure 8) upon the side of an
Oscillating lever 47 pivotted upon the periphery of the carrier 35, by means of a
strap 48 encircling said carrier loosely, (or which may be otherwise pivotted upon
the axis of the wheel to vibrate thereon). The outer end of the lever 47 is fitted
with a friction-roller 49, (to ride upon the periphery of the cam-wheel 44,) and is
Hifted at each revolution of said wheel by means of a cam 50 thereon. The pawl 46
is made to engage a ratchet 51 encircling the hub 52 of the wheel 35, (see Figures 8
and 10), and whose notches are so proportioned in length us that each movement of

page_text: the lever 47 produced by the cam 50 will first move the carrier 35 forward the
length of a notch and then cause the pawl to drop back to engage the next notch.
The number of notches corresponds with that of the radial slides 38 in the carrier 35
so that each movement of the pawl will carry one of said radial slides out into line
with the anvil.
The drawing punch 32 by which the heads are formed from the sheet-metal
blanks and delivered to the carrying-plates on the wheel, is actuated by an
eccentric on the shaft 12, whose axis is parallel with that of the main driving-
shaft 11 and mounted vertically over the axis of the carrier 35. This punch 32 is
made to reciprocate immediately over the periphery of said wheel in a line with
its axis so as to deliver the heads formed thereby, each directly into the receptive
recess in one of the radial slides 38 of the carrier, one of said slides being carried
into line and registry with the punch at each movement of the carrier.
The construction, movement and operation of the punch and the mode of cutting
out the blanks and of feeding them thereto, does not differ substantially from that
of the ordinary devices commonly employed for making these heads and being well
known to the art need not herein be particularly described. The blanks being fed
in the customary manner under the punch 32, (see Figure 8) are thereby forced
into shape in a die placed over the carrier and through the die into the recess 37
in the slide 38, awaiting to receive it. So soon as this is accomplished the punch
is lifted and the carrier moves forward to carry the head forward and bring
another recess 37 into line to receive a head from the punch.
So soon as a wire-blank 17 is arrested upon the anvil 18, a retaining finger 53
(see Figure 7), drops upon the blank just within its bend to hold it fast whilst a
mandrel 54 (see enlarged view in Figure 11) is carried simultaneously within the
bend of the blank as shown in Figure 11 to fill up the space included therein, the
thickness of the mandrel being equal to that of the wire.
The movements of the retaining finger 53, and of the mandrel 54, are derived
from a cam-wheel 55 upon a shaft 56, mounted in the frame of the machine
parallel with the conveying shafts 16, 16, and above the main driving-shaft 11.
The finger 53 is formed upon the end of a bar 57 fitted to reciprocate vertically in
ways on a bracket or standard 58, (see Figure 7) at one side of the line of move-
ment of the mandrel 54. This. bar 57 is actuated by an arm 59 upon a rock-shaft 60
extending back and into line with the cam-wheel 55, and whose opposite end is
fitted with an arm 61, at right angles to the arm 59, said arm 61 terminating with
a friction-roller 62, to bear against a cam surface 63, upon the face of the wheel 55,
as shown in Figure 7. The cam 63 is só adjusted, as that once in each revolution
of the wheel 55, the arm 61, is thrown out from the face of the wheel, thereby
producing an oscillation of the shaft 60 and by means of the arm 59, a movement
of the bar 57 to carry the finger 53 down upon the wire. The cam surface 63 is so
proportioned in length, as that it will cause the finger 53 to bear upon the wire-
blank until a head 86 has been placed and secured thereon as hereinafter described,
whereupon the arm 61, and shaft 60, are thrown back, and the finger 53 lifted by
means of a spring 64 (see dotted lines Figure 7).
To cause the mandrel 54 to enter the bend of the wire-blank in a horizontal
'direction, simultaneously with the vertical descent of the finger 53, the mandrel is
fitted upon the end of an arm 65 (see Figures 7, 8 and 12) pivotted at its upper
end upon a pin 66 (see Figures 7 and 12) projecting from the upper end of a
reciprocating punch-bar 67 mounted to play vertically within a tubular bracket 68
immediately over the anvil and in line with the bent end of the wire-blank placed
'over it. The pin 66 projects through a slot in the side of the standard 68 and
through a block 69 (see Figure 12 and dotted lines Figure 8) fitted to play in a
direction co-incident with the play of the bar 67 within a rectangular slot in an
enlarged head formed upon the arm 65, said block being upheld in the upper
portion of the slot by means of a spring 70 fitted under it within the slot, (see
Figure 1701

page_text: The arm 65 extending horizontally from its slotted and pivotted head is bent
first downward at the side of the bracket for a short distance, and then, with a
double curve out to the front, as shown in Figures 7 and 8, so that the mandrel 54
upon its lower end will, as the arm swings upon its pivot at 66, vibrate in and out
of the bend of the wire-blank supported upon the anvil under said punch-bar.
This movement of the mandrel upon the arc of a circle having the pivot-pin 66
as its center, is produced by means of a pin 71, (see Figure 8) upon the side of a
horizontal lever 72 pivotted at its front end to the bracket 68, and whose rear end ·
is fitted with a friction-roller 73 running in a cam-groove 74 upon the face of a
wheel 75 upon the same shaft as the wheel 55. At each revolution of the wheel 75
the lever 72 is thereby carried once up and down. The lever 72 intersects the arm 65,
and its pin 71, is placed at the point of their intersection so as to project through
a diagonal slot 76 in the arm, (see dotted lines Figure 8) whereby the movement
of the pin 71 is made to produce a vibration of the arm 65 in a direction at a right
angle with that of the lever 72, causing its lower end, carrying the mandrel 54, to
Bwing in and out over the anvil.
The lower end of the vertical bar 67 is fitted with a punch 77, and the upper
face of the anvil 18 is formed to present a counterpart die, so that the opposed
faces of the punch and die shall operate upon an interposed head 86 (see Figure 8)
to close and clamp it upon the bent end of the wire-blank 17 upon which the head
is fitted. The bar 67 with its punch 77 is made to descend upon the blank at the
proper moment, by means of a centrally-pivotted lever 78, pivotted upon a stud 79,
(see Figure 8) and whose inner arm is fitted with a friction-wheel 80 made to bear,
by means of a spring 81, upon the periphery of a cam-wheel 82 mounted upon the
same shaft as the wheel 75 by its side, and which is provided with a peripheral
cam 83, (see Figure 8) by which the lever 78 is tilted at a suitable moment in the
revolution of the wheel. The outer arm of the lever is pivotted to the upper end
of the bar 67, so that when the lever is oscillated the bar 67 will be forced down,
its return being effected by the pressure of the spring 81 upon the inner arm of
said lever.
For the purpose of starting the pin-blanks forward after a head has been fitted
thereon, in case that portion m³, m', of the feed-grooves m, m, upon the carrier
shafts 16, 16, which is formed at a right angle to the axis of the screw, is made to
include its entire circumference, as shown at m², m³, in Figures 14 and 15, a rock-
shaft 83 may be mounted under the transverse grooves m³, m³, at a right angle to
the screw shafts 16, 16, said rock-shaft 83 being provided with fingers 84, 84, (see
Figure 14) to project up therefrom in position to engage the pin-blank resting in
the grooves m³, m³, so as to push the same forward out of this portion of the
grooves and into the spiral portion m, thereof, at each oscillation of the shaft 83.
This oscillation of the shaft is produced at the moment each blank is headed and
set free by means of an arm 85, on the end of the shaft 83 brought to bear against
the face of the wheel 55 so as to be actuated by a cam-projection thereon, not
shown in the drawings.
In the operation of the machine when constructed as last described and as
illustrated in Figures 9-12, so soon as one of the pointed, bent, wire pin-
blanks 17, 17, is arrested with its bent end resting over the anvil 18, the retaining
finger 53 drops upon the blank at a point over the outer edge of the anvil and
thereby secures and steadies it. The anvil is so far recessed at this point however,
as that the pressure upon the wire will cause its inner, bent end to spring up
slightly from the face of the anvil so as to facilitate the insertion of a head upon
said end. Simultaneously the mandrel 54 commences to move in alongside of the
wire and is carried into its bend and the one radial slide 38 in the carrier 35
which is in line with the anvil, is pushed outward by means of the rod 43 so as to
carry the head held in the end of the slide, over and upon the bent end of the
wire 17, supported by the mandrel 54 inserted therein. So soon as the head has
thus been fitted upon the wire 17 the punch 77 (see Figure 8) descends upon the
head. and bends and clamps its edges firmly upon the wire to clasp and embrace it

page_text: L
closely, the interior of the head within the bend being kept open by means of the
mandrel. The instant the head is thus secured to the wire, the mandrel 54 is
withdrawn from the wire and swings up out of the way; the radial slide 38 in
the carrier moves back; the finger 53 is next lifted; and finally, the punch 77
rises and leaves the headed pin-blank wholly free. The carrier 35 in the meantime
rotates far enough to carry the empty slide 38 forward and bring another head
into line with the anvil, the head-forming punch 32 having formed from a blank
and deposited into the slide at the top of the wheel, another head during the
movement of the punch 77.
By this time, in the revolution of the spirally-grooved shafts 16, 16, the end of
the transverse portion m¹ of the groove has reached the headed pin so that the
wire becomes once more engaged by the spiral portion of the groove and is moved
thereby and carried forward to the coiling machine. Or, if the screw shafts 16, 16,
are provided with circumferential grooves m³, m³, the fingers 84, 84, are brought
into play to lift the headed wire forward (see Figure 14). At the moment the
beaded blank commences its forward movement another blank enters the transverse
portion m¹, or m², of each groove on the shafts, and being arrested in position
as above described over the anvil 18, is in turn automatically headed by the
movements set forth.
I am aware that a feeding-screw having a variable pitch and with the spiral
groove therein made to assume for somewhat less than a half turn, a direction at
right angles to the axis of the screw, has been heretofore employed in a nail
machine, and I do not therefore claim as new or of my invention the conveying
shafts 16, 16, when formed each with a spiral thread which is diverted for a short
distance only at a right angle to its length.
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. The combination in a machine for heading safety-pins of a radially-slotted,
intermittently-rotating carrier; slides moving in its slots; a diametric reciprocating-
bar engaging successively each slide when brought into line therewith by the
rotation of the carrier, to force it outward; mechanism, substantially as described,
for carrying and momentarily detaining a pin-blank in line with the reciprocating-
bar and the slide actuated thereby; and mechanism for delivering successively a
head in front of each slide before the. slide is engaged by the reciprocating-bar,
whereby a head delivered to the carrier is transferred to the pin-blank and fitted
thereon, substantially in the manner and for the purpose herein set forth.
2. The radially-slotted, intermittently-rotating carrier; slides moving radially
in its slots; a diametric reciprocating-bar actuating successively each slide when
brought into line therewith to impart thereto its own reciprocating movement;
and mechanism, substantially as described, for forming and. delivering in succession
a safety-pin head in front of each slide; of an anvil fixed in proximity to the
periphery of the carrier and in line with the reciprocating-bar, a device, substan-
tially as described, for carrying a pin-blank to and from the anvil and detaining it
momentarily thereon, a reciprocating punch mounted over the anvil to descend
upon each head forced by the movement of the slide upon the pin-blank, and
mechanism, substantially as described, for actuating in succession and intermittently
the carrier, reciprocating-bar, punch and pin-carrying device, all substantially in
the manner and for the purpose herein set forth.
3. The combination in a machine for heading safety-pins, of a single, vertically-
reciprocating block; a cutting punch and a drawing punch both carried by said
block; a centrally-pivotted carrier rotating intermittently beneath the block; an
annular plate fixed upon the head and provided with a series of recesses in its
upper face to move and come to a rest under each punch; a cutting die interposed
(between the cutting-punch and the recessed plate; a drawing die placed under said
(plate in register with the drawing punch and with one of the series of receptive

page_text: recesses formed in the carrier. and brought by its movement under the die; and a
device, substantially as described, for transferring and fitting upon a pin-blank on
the anvil the head delivered from the drawing die, substantially in the manner
and for the purpose herein set forth.
.
4. In a machine for heading safety-pins, a rotating carrier provided with
diametric slots on its under face; mechanism substantially as described for
producing an intermittent movement of the carrier; a recessed bed-plate within
which said carrier rotates; a slide fitted in each radial slot to move longitudinally
therein; a reciprocating-bar moving in a diametric slot cut in the underside of the
bed-plate to intersect the annular grooves and to communicate with the radial
slots in the head when brought into register therewith; a lug upon each slide
fitting and moving as the carrier revolves in an annular groove in the bed-plate
under the carrier and into a transverse groove on the upper face of the bar in
register with said annular groove; and mechanism, substantially as described, for
actuating said bar, all substantially in the manner and for the purpose herein
set forth.
5. The combination in a machine for safety-pins of an anvil 18; mechanism
substantially as described for carrying a pin-blank 17 over the anvil; a recessed
bed-plate A, mounted in front of said anvil; a carrier B, rotating intermittently
in said bed-plate A, upon a fixed stud A¹, at a right angle with the anvil;.
slides C, C, fitted to play longitudinally in radial recesses in said carrier B, and
through an opening in the rim of the bed-plate opposite the anvil on a level with
the top thereof; a longitudinally reciprocating-bar H', playing diametrically in a
recess in the bed-plate under the slides C, C, and in line with the pivotal axis of
the head B, and the center of the anvil; a lug g, projecting from each slide to
engage a transverse groove a³, in the bar H¹, when brought into register therewith ;
and mechanism, substantially as described, for delivering a pin-head or shield in
front of each slide C, before it attains its position in front of the anvil 18, and over
the bar H; and for producing an intermittent rotation of the head B, and an
intermittent reciprocating movement of the bar H, all substantially in the manner
and for the purpose herein set forth.
:
6. A spirally-grooved, rotating conveying-shaft formed with a 'transverse,
circumferential, detaining groove completely encircling the same to arrest and
detain a blank fed forward by means of the spiral-conveying groove, in combina-
tion with a lifting device substantially as described, for lifting and forwarding the
blank from said detaining groove to the conveying groove, substantially in the
manner and for the purpose herein set forth.