provements in machines for manufacturing Safety-pins.
Year: 1886

page_text: provements in machines for manufacturing Safety-pins.
I, JOEL JENKINS, of Montclair, in the County of. Essex and State of New
Jersey, United States of America, Manufacturer, do hereby declare the nature of
my invention for IMPROVEMENTS IN MACHINES FOR MANUFACTURING SAFETY-
PINS 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 an improved machine for the manufacture of Safety-
Pins, and has for its object to facilitate the bending of one end of the pointed bit
of wire which is to form the pin and the firm attachment of the shield or head of
the pin upon said bent end preparatory to the remaining operation required to
complete the pin, and which consists in coiling the wire-blank in the middle.
whereby the pointed end is bent back into line for engagement with the head
which is to serve as a guard for the pin; this last bending and coiling operation
being performed by devices not herein shown or described.
The present invention consists in the combination and arrangement of mechanical.
devices hereinafter fully explained, by which the bending of the end of the blank
and the placing and securing of a head or shield thereon is automatically performed.
in one machine.
In the accompanying drawings forming a part of this specification,
Figure 1, is a plan view of the Improved Safety-Pin Machine, with a portion of
the rim of the conveying wheel broken away to illustrate the position of the
ratchet-teeth thereon.
Figure 2, an irregular, vertical section in line x, x, of Figure 1.
Figure 3, is a vertical, diametric section on an enlarged scale through the
conveying wheel in line y, y, of Figure 1, parallel with the bending lever.
Figure 4, an irregular vertical section in line %, %, of Figure 2, but on an enlarged
scale, illustrating the movement of the lever actuating the clamping punch or
plunger.
Figure 5, a side elevation and an end view on an enlarged scale of the head-
carrying arm; Figure 6, being a similar view of a modification thereof.
Figure 7, a detached view on an enlarged scale of one of the pin-heads or shields
attached to the end of a pin-blank.
Figure 8, a detached, vertical section of a portion of the conveying-wheel.in line
with the bending lever as at y, y, in Figure 1, but which illustrates a modification.

page_text: in the form of the retaining-plate confining the pin-blanks when it is to be operated
upon by the bending-lever, and
Figure 9, a detached side elevation illustrating a modification in the arrange-
ment and means for operating the head-carrying arms wth a rotary instead of a
reciprocating movement, and
.
Figure 10, a plan view of the modification of the head-carrying arms shown in
Figure 9.
Similar letters indicate like parts in all of the Figures.
In these drawings, A, represents a vertical spindle secured upon a bed-plate A¹,
and B, a wheel rotating upon said spindle as its axis and whose upper face is dished
centrally leaving a wide, annular, flat face or rim B₁ around its outer edge. This
upper rim is likewise recessed longitudinally so as to leave low, concentric ledges
or upwardly-projecting flanges a, a, along the inner and outer edge of the rim, and
these flanges are notched radially at equal distances apart (see at b, b, Figure 1) to
form seats which shall receive and retain in a radial position on the rim of the
wheel, the wire-blanks to be headed by the machine.
The pointed wire-blanks to be headed in this machine are represented at C, C,
and may be fed to the wheel B, in any customary manner, as for instance by means
of spirally-threaded, conveying shafts D, D, from which they are delivered one at a
time into the notched seats b, b, the wheel B, being made to rotate intermittently
so as to bring the radial seats successively in order under the ends of the conveying
shafts D, the length of each movement being equal to the distance between the seats.
The intermittent movement of the wheel is produced by means of a spring-
actuated pawl E, pivotted upon the end of a reciprocating rod E¹, actuated by an
eccentric upon the main shaft E, of the machine, which said pawl E, engages
notched teeth c, c, formed upon the periphery of the wheel as illustrated in Figure 1.
The pointed blanks C, C, are dropped from the conveying shafts D, D, into the
radial seats b, b, in such manner as that their blunt ends shall project out beyond
the periphery of the wheel, and the pointed inner end of each blank enters as it
falls, a vertical notch d, in a vertical rim or plate G, (see Figure 1), dependent
from the outer edge of a horizontal plate G₁, projecting from the top of the
spindle A, to which it is made fast, (see Figure 3.) At the first movement made
by the wheel after a blank has thus been delivered thereon, the pointed end of the
blank is carried from the notch d, into a horizontal slot d¹, formed in the face of
the rim G. (see Figure 3.) This slotted rim G, is curved so as to be eccentric to
the rim of the wheel, whereby, as the wheel moves forward, the pointed ends of the
blanks are in a few moves carried out clear and free of their engagement with the
slot d', as shown in Figure 1.
So soon as a blank Č, has been deposited in one of the radial seats b, b, on the
wheel B, and its inner, pointed end has passed into the slot d', in the curved rin G,
of the plate G¹, its outer end is brought under the end of a bending lever H, into
line with a recess in the edge of a fixed horizontal plate I, (see Figures 1 and 3).
This bending lever is made to oscillate in a vertical plane upon a suitable pivotal
support H, its outer end being fitted with a friction roller e, and held by the
tension of a spring H³, into constant contact with a cam-
n-wheel H³, upon the main
shaft. In the revolution of the wheel H³, the outer end of the lever H, is.forced
upward by the cam on the wheel at the moment the wire-blank C, is brought
under the inner end of the lever, and said inner end is thereby made to bend down
the end of the blank at a right angle to its length, (see Figure 3) the inner end of
the blank being meantime confined and supported by its engagement with the
slot d, in the plate G. The next move of the wheel B, will cause the bent end of
the blank to swing upward into a horizontal position, by reason of its contact with
the wall of the recess in the fixed plate I, and is carried thence in said horizontal
position over the face of said plate I, as shown in Figure 1.
The outer edge of the plate I, is made to curve inward beyond the bending
lever H, and an upwardly projecting flange I, is formed along said outer edge
against which. the bent ends of the blanks C, C, are carried, and by which the
2

page_text: blanks are gradually forced inward until the bent portion is brought against
one of a series of supporting lugs J, J, projecting radially from the periphery of
the wheel each with its forward edge in line with one of the radial seats b, b,
on the face of the wheel. The outer end of each lug J, is of a width corresponding
exactly with the length of the inner side of the bent portion of the blank so as to
fit closely in the angle thereof, as shown in Figure 1.
So soon as the end of a blank C, is thus fitted upon a supporting lug J, it is
carried by the next movement of the wheel under a segmental, elastic clamping-
plate K, which extends far enough over the face of the wheel to bear upon the
blanks carried thereon until they have passed beyond the heading device.' This
elastic plate K, is made to curve in an arch from the rim of the wheel to the top of
the spindle A, and to project radially beyond it in the shape of a curved arm K₁, to
the opposite side of the wheel, said arm K¹, being connected by a hinge-joint to the
end of the horizontally reciprocating pawl-rod E¹. The plate K, is pivotted upon
the top of the spindle A, and confined thereon by means of a nut K³, which, when
screwed down upon the spindle, bears upon the center of the arch formed by the
plate K, and its arm K¹, and by its pressure forces and holds the plate down firmly
with an elastic pressure upon the wheel B, and upon the interposed blanks C, C,
carried upon the wheel to the heading machine. By the connection of the arm K',
with the reciprocating rod E¹, the plate K, is made to move in unison with the
wheel B, as the wheel is moved forward, and is then carried back by the rod in
unison with the pawl E, as the latter is thrown back to re-engage the wheel.
By this means the plate K, clamps the blank C, firmly as it is carried to and
beyond the heading device, the movement of the plate being effected while the
blank is caught and held by said device.
So soon as the headed blanks C, pass beyond the heading device in the inter-
mittent movement of the wheel B, their inner ends are brought to bear against
the curved edge of a plate Y, projecting over the wheel from its spindle A, the
edge of the plate being bent down or widened to serve as a flange, and bent in
a curve eccentric to the wheel so that the blanks are thereby gradually forced
outward until they will automatically drop into a receptacle placed under the
wheel to receive them.
The heads or shields for the pins are placed on the blanks C, C, by means of a
lever L, (see Figure 2) swinging in a vertical plane extending radially through the
center of the wheel B, upon a pivot pin or stud f, projecting laterally from an
upright L¹, through a longitudinal slot in the lever. A spiral spring'g, is fitted
within the slot between its inner end and the pivot-pin so as to keep the outer,
end-wall of the slot normally against the pin, (see Figure 2).
An anvil block or post M, is placed in close proximity to the rim of the wheel B,
with the level of its upper face slightly below the upper face of the wheel and in
the same vertical, radial plane wherein the lever L, vibrates, and the lever L, is so
proportioned in length and its pivot f, so located with reference to the rim of the
wheel B, as that, when the lever is swung into a horizontal position, its outer end
will drop upon the top of the anvil M, in close proximity to the bent end of the
wire-blank C, brought over the anvil by the wheel B, as illustrated in Figure 2.
The outer end of the lever L, is slotted longitudinally and transversely so as to
form two elastic jaws h, h, (see Figure 5) and the inner, opposite faces of these
jaws are recessed (see cross section Figure 5) so as to form dies, the counterpart of
the finished head (see Figure 7) to be secured upon the end of the wire-blank;
the dies being sprung apart sufficiently by the normal elasticity of the jaws to
receive readily between them a blank head, V. As an equivalent device, one of
the jaws inay be hinged to the opposite jaw h³, and a spring h³, interposed between
them as shown in Figure 6.
i
The lever L, is made to oscillate from a horizontal position in which its jaws
rest upon the anvil, to a vertical position, in which the jaws are brought directly
beneath a press in which the blank-heads are formed, (see Figure 3), and vice-
versa, by carrying the longer end of the lever beyond its pivot, at f, laterally 'over

page_text: the face of a crank-wheel. M³, mounted to rotate reciprocally in a vertical plane
parallel with the lever, upon a stud-axle Is, projecting from a pedestal or standard A³,
on the bed-plate A¹, below and in the rear of said pivot f. This longer end of the
lever L, is longitudinally slotted to receive a crank-pin ;, projecting from the face
of the wheel M¹. A pinion is secured to the wheel M¹, on the side opposite to the
lever L, to rotate upon the stud-axle I, and this pinion is engaged by a recipro-
cating rack-bar N, sliding in suitable ways formed in the standard A. This bar N,
is made to reciprocate back and forth as required, by the engagement of a pin on
its outer end with a cam-groove m, in the face of a cam-wheel O, mounted upon a
shaft 01; geared by bevel-wheels P, P, to the main shaft E³. The bar N, is
furthermore supported by means of a fork N', at its outer end, formed to embrace
the shaft O¹, as illustrated in Figure 2. The cam-groove m, is so shaped as that
the bar N, is not moved during a given interval in the rotation of the shaft 0³, 80
that the lever L is thereby left at rest with its jaws h, h, upon the anvil M, while a
punch or compressing plunger Q, is brought to bear upon the jaws to close them
upon the head after the head has been carried over the end of a wire blank C.
The heads or shields V, (see Figure 7) for the pins, may be produced in the usual
manner by stamping a blank from a thin strip R, (see Figure 4) of brass, by means
of a cutting-punch R¹, and a shaping punch R³, working centrally through it, (see
Figures 2 and 4) the strip R,, being fed forward intermittently in the customary
manner by the operation of rollers (not shown in the drawings) upon which it is
wound. The punches R¹, and R2, are mounted to work in a guide upon a
standard S, vertically over a plate W, and die W₁, supported immediately above
the pivotal axis f, of the lever L, so that the blank for the head, after it has been
cut out by the cutting-punch R¹, and forced down by the drawing punch or
former R, in the usual manner through the shaping die W¹, into its finished form,
will drop automatically between the jaws h, h, of the lever L, which in the
meantime has been brought into a vertical position to receive the head. The
punches R¹ and R³, need not berein be particularly described, being constructed
and operated in the usual manner by means of a lever R³, pivotted upon the top
of a standard T, on the bed-plate A', of the machine so that its outer end may bear
upon the periphery of a cam-wheel T¹, on the main shaft E2, with which it is kept
in contact by means of a spring T*, (see Figure 4).
So soon as a head V, has thus been deposited between the jaws h, h, the lever L,
is awung over by the movement of the crank-wheel M¹, into a horizontal position
and the movement of the wheel continued after the lever has attained its hori-
zontal position, will operate to move it longitudinally forward, horizontally, so as
to carry its jaws towards the wheel B, and upon the anvil M. By this horizontal,
longitudinal movement of the lever upon its axial pin, the head V, inserted
between the jaws of the lever, is carried over the bent end of the pin-blank C,
previously brought into position over the anvil M, by the movement of the wheel B,
as hereinbefore described.
So soon as the jaws h, h, of the lever L, 'with the head inserted between them,
have been brought over the bent end of the blank C, above the anvil M, the
punch or plunger Q, is brought down upon the upper jaw with sufficient force to
close and compress it tightly against the opposite jaw supported on the anvil, and
thereby close and clamp the interposed head V, firmly upon the bent-end of the
pin-blank in the proper form required for a finished pin, (see Figure 7).
The punch Q, is mounted to reciprocate vertically over the die in suitable
bearings formed in a bracket Q¹ projecting from the standard S. Its upper end is
pivotted to one end of a lever U, pivotted upon the top of the standard S, and
whose outer, longer end is made to bear upon the periphery of the cam-wheel O,
on the shaft O¹³, (see Figure 2) being kept in constant contact with the wheel by
Means of a spring U¹, in the customary manner.
In the operation of this machine, a straight wire-blank C, previously pointed at
one end, is delivered by the movement of the conveying shafts D, D, and dropped
upon the concentric flanges a, a, of the wheel B, and into the radial notches b, b.

page_text: t
"
At the first intermittent movement of the wheel B, produced by the action of
the reciprocating pawl E, the pointed end of the blank is carried under the upper
edge of the slot d, in the plate G¹, and its outer. end is carried over the recess. in
the plate I, and under the end of the bending lever H. During the next inter-
mission in the movement of the wheel B, the end of the bending lever H, is made
to drop upon the end of the blank C, and bend it down at a right angle to
its length. The next movement of the wheel will carry this bent end over and
upon the face of the horizontal plate I, the bent end being turned automatically
into line parallel with the face of the plate I, upon which it rests, by its forward
movement. As the wheel B, thereafter moves intermittently forward, the blank.
is gradually forced inward by the contact of its outer, bent end with the curved
flange 1', until said bend is brought into contact with the supporting lug J,
projecting from the periphery of the wheel in line with the blank. In the mean-
time its inner end has passed out from the slot d, in the plate G¹. So soon as
the bent end of the blank C, has thus been carried against its supporting lug J, it
passes under the edge of the plate K, and by it is confined closely upon the face
of the wheel B, with its bent end alone projecting beyond the periphery of the
wheel, and in this condition is brought into position over the anvil M. During the
intermission which occurs in the movement of the wheel while the blank is over
the anvil M, a head or shield V, carried between the jaws h, h, of the lever L, is
brought by the movement of said lever,-produced in manner as herein before
described, from the cutting and shaping-punches R1, R2, and die W¹, by which
the head is formed, and is slipped over the bent end of the blank, and then clamped
down upon it and shaped thereon by the action of the plunger Q, in closing the
jaws. So soon as the plunger Q, rises, the elasticity of the jaws will cause them
to open automatically, free from the, head V, which remains' secured to the pin-
blank C, and the lever L, and jaws h, h, will be withdrawn, so that the movement
of the wheel B, will carry the headed pin-blank forward clear of the anvil. In the
continued movement of the wheel the blank will be gradually forced outward by
the contact of its inner end with the curved plate Y, until it finally drops into a
receptacle beneath.
Instead of forming the margin of the plate G₁, with a slotted flange G, bent
downward therefrom; by which to confine the inner ends of the blanks at the
moment their outer ends are bent down by the bending lever H, the plate G³, may
be extended far enough to permit its bent or flanged margin G, to rest directly
upon the blanks over their seats b, b, on the face of the wheel B, as illustrated in
Figure 8, and this latter device constitutes an equivalent modification of the first.
As an equivalent for the mechanism herein before described for transferring the
head or shield for each pin from the die in which it is formed to the pin-blank and
then placing it upon said blank in readiness to be clamped and secured thereon, a
series of transferring arms 10, 10, may be mounted radially as spokes upon a central.
hub 11, (see Figure 9) fixed upon an axial shaft 12, to rotate intermittently under
the head-forming die W¹, or other device from which the heads may be delivered,
and in front of the anvil .M, so as to be in line with the top of said anvil when
brought to a horizontal plane as shown in Figure 9.
'
1
The end of each arm 10, is divided to form jaws h, h, and corresponds in form of
construction with that of the arm L, above described, the jaws being adapted to
receive and hold the head or shield and to shape it, as it is clamped upon the end
of a wire blank.
The shaft or pin 12, from which the arms radiate is made to rotate in suitable
bearings in the forked end of a horizontally reciprocating-bar, 13. This forked
bar 13, is mounted to slide freely in horizontal ways formed in pedestals 14, 14,
(see Figures 9 and 10) upon the base plate A¹, of the machine, and the axial shaft 12,
is carried thereby vertically under the die W¹, or opening in the table W, through
which the detached heads are delivered and, by the reciprocating movement of the
bar, is carried from suid point forward and back a distance slightly greater than
the length of the head, (see dotted lines Figure 9). A
+
3.

page_text: The outer end of this forked bar 13, is slotted (see dotted, lines Figure 9) to
embrace the shaft O¹, and its reciprocation is produced by means of friction-
rollers 15, 15, upon stud-pins projecting from the face of the bar to embrace
between them the periphery of a cam-wheel 16, secured upon said shaft 01.
The radial arms 10, 10, are of such a length as that in the rotation of the hub 11,
when in position vertically under the die W¹, in the table W, they shall each pass
closely under the table, and the hub 11, is so mounted relatively to the anvil M, as
that the arms shall revolve in a vertical plane passing centrally through the anvil
with their ends just clearing its edge when the hub is central under the feed
opening, and will each project immediately over the anvil, to rest upon it, when
brought to a horizontal position and carried forward by the forward movement of
the hub from under the feed opening, produced by the movement of the forked
bar 13, (see dotted lines, Figure 9).
The arms 10, 10, are carried successively and intermittently from the die W¹, in
the table W, where they receive the detached heads V, to the anvil M, where they
deliver them upon the pin-blanks C, by an intermittent rotation of the hub 11,
produced by the engagement of the end of an oscillating lever 17, (see dotted lines
in Figure 9, and see Figure 10) with a series of ratchet-teeth 18, 18, formed upon
one side of the hub. This lever 17, is pivotted upon the side of the bar 13, and
its outer end terminates in a ring 22, to embrace the shaft O¹, and is fitted
with friction-rollers 20, 20, which, rotating upon stud-pins projecting from its
face, bear against the periphery of a cam-wheel 21, secured upon said shaft O¹.
The pin upon which the pawl-lever 17, is pivotted, extends through'a horizontal
slot 22, in the lever so as to permit of the longitudinal reciprocating movement of
the bar 13, independently of said lever, (see dotted lines Figure 9). The movement
of the pawl lever 17, is so adjusted, as that it will operate to bring each arm 10
successively into position, one under the die W¹, and another, simultaneously, into
line with the anvil M, and the cam-wheels 16, and 21, are so formed and adjusted
as that so soon as the cam 21, has operated to shift the arms, the cam 16, will
· operate to produce a forward, longitudinal movement of the bar 13, allow it to
remain quiet for a given interval, and then retract it preparatory to another move-
ment of the pawl-lever 17. While the retracting arms and the hub 11, carrying
them, are in their forward position, the pawl end of the lever 17, drops, so that
upon the return of the hub, the pawl is in position to engage another ratchet
tooth brought over it into line for engagement by the return of the hub..
The movements of the conveying wheel B, and of the punch or plunger Q, are
80 adjusted with reference to those of the heading arms 10, 10, as that a fresh
blank is brought by the wheel over the anvil during the interval in which the
supply to the arms and their revolution is effected; and, while the wheel remains
stationary, the punch or plunger Q, first descends to close the jaws of the arm 10,
over the anvil upon the head or shield V, inserted between them and thereby com-
press and clamp the head or shield upon the bent end of the wire-blank, and is
then again lifted therefrom, the forked bar 13, in the meantime moving longitu-
dinally forward to carry the jaws and head over the blank before the plunger
descends, and back again to withdraw the jaws after the plunger has moved up,
before the intermittent rotary movement of the wheel B, again occurs. Prior to
this movement a fresh blank is supplied to the vertical arm. Whilst the ratchet-
teeth 18, 18, upon the hub 11, are, by reason of the forward position of the hub,
clear of the pawl-lever 17, the lever oscillates so as to carry its pawl end down in
readiness to engage the next tooth brought over it by the return of the hub to its
first position.
By means of this modification in the construction of the transferring devices,
a blank head or shield is delivered into the jaws of one of the heading arms at
each movement of the machine, and by its successive movements the arm is carried
from a vertical to a horizontal plane into line with the top of the anvil, then
carried forward over and upon the end of a bent wire-blank previously brought
into position over the anvil by the conveying-wheel then compressed and fixed

page_text: upon the blank, and the jaws are thereafter withdrawn leaving the heading blanks
free to be carried forward by the next movement of the wheel, which said move-
ment brings another blank into position for heading by a repetition of the
movements already described.
Any well known, suitable, device for bending the end of the wire-blank after it
has been placed upon the wheel B, and of forming the heads V, for the blanks, and
of depositing said detached heads in any suitable manner between the jaws h, h, of
the lever L, or arms 10, 10, may be employed in combination with the remaining
parts of the machine.
Any well known mechanism for producing an intermittent rotation of the
wheel B, synchronically with the intermittent movements of the lever L, or
arms 10, 10, and clamping punch Q, may also be employed as substitutes for those
described, with the same effect; and various devices now commonly employed in
safety-pin machines, may be substituted for the spiral-conveying shafts D, D, as a
means for delivering the blanks to the wheel.
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
1st. The combination with the mechanism substantially as described for bending
the end of a wire-blank for a safety-pin, of a carrying-wheel B, rotating intermit-.
tently upon a vertical spindle, and a flanged confining-plate G, whose edge is
placed parallel with the face of the wheel in position to engage the wire-blanks
placed radially on the horizontal rim of the wheel substantially in the manner and
for the purpose herein set forth.
2nd. The combination of a carrying-wheel B, rotating intermittently upon
a vertical spindle and having radial seats formed upon the upper face of its
horizontal rim to receive wire-blanks for safety-pins, with conveying shafts D, D,
for delivering the blanks to the radial seats on the wheel, and with mechanism.
substantially as described for placing a head upon the bent end of each of said
blanks, substantially in the manner and for the purpose herein set forth.
3rd. The combination with a carrying-wheel B, rotating intermittently upon
a vertical spindle and having radial seats formed upon the upper face of its.
horizontal rim to receive wire-blanks for safety-pins; ratchet-teeth formed upon
its periphery; a reciprocating rod; a motor actuating said rod; a pawl pivoted to
the rod to engage the ratchet-teeth; and mechanism substantially as described for
placing and clamping successively a head upon the bent end of each blank placed
upon the wheel; of an elastic, confining-plate K, mounted upon the axial spindle
of the wheel to extend over and bear upon the face of the wheel opposite said
heading mechanism, and provided with an arm K¹, extending radially from said
plate and hinged to the reciprocating pawl-lever, whereby the outer end of the
plate K, is made to move forward in unison with the wheel, and move back over
its face when the wheel is at rest, substantially in the manner and for the purpose
herein set forth.
4th. The combination with a carrying-wheel B, rotating intermittently upon
a vertical spindle and having radial seats formed upon its horizontal rim to receive
wire-blanks for safety-pins, of a series of lugs J, J, projecting from the rim of the
wheel, each in line with one of the radial seats and in position to support the
projecting, bent end of the blank resting therein, substantially in the manner and
for the purpose herein set forth.
5th. The combination with a carrying-wheel B, rotating intermittently upon
a vertical spindle and having radial seats formed upon its horizontal rim to receive
wire-blanks for safety-pins, and with mechanism substantially as described for
bending the outer end of each blank, and luga projecting from the rim of the
wheel to support the bent ends of the blanks, of a horizontal plate I, over which
said bent ends projecting beyond the rim of the wheel are carried in its movement,
said plate having an eccentric flange I¹, on its outer edge adapted to gradually force

page_text: •
the bent ends inward against the supporting lugs, substantially in the manner and
for the purpose herein set forth.
•
6th. The combination with a carrying-wheel B, rotating intermittently upon
a vertical spindle and having radial seats formed upon its horizontal rim to receive
wire-blanks for safety-pins and lugs projecting radially from its rim id line with
said seats to support the bent ends of said blanks, of a fixed anvil-post or block M,
over which said lugs are made to rest in succession in the movement of the wheel;
a rotating or reciprocating arm or lever recessed at its outer end to receive a
detached pin-head and made to swing towards and move longitudinally over upon
each lug in succession, when the lug is brought to rest over the anvil, and thereby
fit thereon the detached head; mechanism substantially as described for moving
said arm or lever; and a punch or plunger reciprocating to and from the anvil to
clamp and compress the head carried. by the arm or lever upon the lug over the
anvil, substantially in the manner and for the purpose herein set forth.
7th. The combination in a safety-pin machine, of the mechanism substantially
as described for bending the end of a wire pin-blank; an anvil post or block;
a horizontal, intermittently-rotating wheel for conveying the blank from the end
bending mechanism to the anvil; a compressing punch or plunger reciprocating
vertically to and from the anvil; and an oscillating or rotating and longitudinally
reciprocating arm or lever by which a detached head is carried to the anvil under
the punch or plunger and placed upon the bent end of the blank brought thereto
by the wheel, all substantially in the manner and for the purpose. herein set forth.
8th. The combination with an anvil M; and a carrying device substantially as
described whereby the end of a wire pin-blank is brought over the anvil; of a
bar 13, reciprocating longitudinally in a horizontal plane to and from the anvil in
a direction coincident with the length of the wire-blank; mechanism substantially
as described for producing an intermittent reciprocating movement of the bar;
a series of radial arms 10, 10, rotating at the end of the reciprocating bar in the
same longitudinal plane with the wire-blank; and clamping jaws h, h, at the end of
said arms, brought in the rotation of the arms intermittently into line horizontally
with its axis, and which are carried by its longitudinal movement over the anvil to
embrace the end of the wire pin-blank laid thereon, all substantially in the manner
and for the purpose herein set forth.
9th. In a safety-pin machine, the intermittently rotating and horizontally-
reciprocating hub 11; the arms 10, 10, radiating therefrom, recessed at their outer
ends to receive and carry blank heads or shields for safety-pins; an anvil M, over
which their outer ends are successively brought to a rest and withdrawn; mechanism
substantially as described for delivering the heads into the terminal recesses of the
arms; and mechanism 'substantially as described for carrying wire pin-blanks into
line over the anvil to receive the heads, all substantially in the manner and for the
purpose herein set forth,