Improvements in Stapling Machines.
Year: 1897

page_text: Date of Application, 13th Oct., 1897-Accepted, 27th Nov., 1897
COMPLETE SPECIFICATION.
Improvements in Stapling Machines.
We, LEE SPEAR BURRIDGE of No. 160, West 54th Street, New York City, in the
County of and State of New York, Inventor and JACOB FELBEL, No. 280 Broad-
way, New York City, in the County of New York, and State of New York United
States of America, Patent Solicitor, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
:—
Our invention relates more particularly to that description of hand stapling
machines in which the staple is formed from a straight pin or piece of wire and
then driven through the material to be fastened and clinched on the under side
thereof; and our invention has for its main object to provide a simple, cheap
and effective machine or implement of this kind. Our invention consists in
the various features of construction and combinations of devices hereinafter more
fully described and particularly pointed out in the appended claims.
The machine embodying our present improvements comprises a suitable base
having formed therein a clinching recess or equivalent device. At the rear end
of the base is pivoted a head or frame, which at its front side carries a combined
cutter and bender in which slides a plunger constructed at its lower end to form
the driver for forcing the staples through the material. The said plunger or
driver reciprocates in V-shaped grooves formed in the cutter and bender, which
grooves also receive the formed staple, as will hereinafter appear, and to the said
driver or plunger is connected by means of a link a vibratory device which is
independently pivoted or fulcrumed at the lower portion of the head or frame
back of the plane of the bender, which vibratory or lever-like device is forked
at its forward end to provide a rest or support for the pin or wire, and to also
provide means to co-operate with the cutter or bender to enable the pin or wire
to be properly cut or severed to size; and the said vibratory device is also formed
or provided with an anvil about which the severed pin or wire is bent into staple
form by the said combined cutter and bender, the said anvil then swinging out
of the way to permit the descending driver to come down on to the crown of the
staple and force it through the work, after which a spring returns the moving
parts to their normal positions, all as will now be more specifically set forth in
connection with the accompanying drawings, in which
Figure 1 is a side elevation of a stapling machine embodying our improve-
ments, the parts being shown in their normal positions of disuse.
Figure 2 is a front elevation of the same.
Figure 3 is a plan view taken below the knob but showing the plunger or
driver in section.
Figure 4 is a vertical section taken at the line a, r, of Figure 2.
Figure 5 is a view similar to Figure 1, but showing a pin in position to be cut
and the cutter as just about to operate on said pin.
Figure 6 is a vertical section taken at the line y, y, of Figure 5.
Figure 7 is a side elevation showing the parts in still other positions, and
representing the staple as having been formed, driven and clinched on the paper.
Figure 8 is a vertical section taken at the line, z, of Figure 7, and

page_text: Figure 9 is a detail sectional view showing the staple within the grooves in the
bender just before. the anvil parts company with it and the driver engages with
said staple.
In the various views the same part will be found designated by the same
numeral of reference.
a
1 designates the base of the machine which is raised at the front side and
which raised portion may be provided with a separate face plate 2, formed with
curved clinching recesses 3 of the usual form to turn the legs of the driven staple
up against the under side of the work. At the rear end of the base are cast two
lugs 4, between which is pivoted the head 5 by a pin 6. The said head carries all
of the movable parts of the mechanism and consists of two parallel side
plates 7, 7, to the front edges of which is secured by screws 8 the combined
cutter and bender 9. This device comprises two parallel side pieces 10, 10,
which are joined together only by a front piece or member 11, thus leaving
space or opening indicated at 12 at the rear end of the device. In each side
piece 10 is formed a longitudinal groove or channel 13 which extends for the
entire length of the device. The lower end of each side piece 10 is made square
so as to form a cutting edge 14. The front and side pieces form together three
sides of a hollow square and within this space is arranged the plunger or driver 15,
which is preferably formed diamond-shape in cross section and so arranged as
that two of its angular edges work in the V-shaped grooves 13 in the bender.
The upper end of the plunger or driver is provided with a knob 16 and its lower
end is preferably formed with a transverse groove 17 in line with the two
opposing longitudinal grooves 13 in the bender. The lower portion of the
driver is beveled or chamfered at 18, so as to avoid any interference with the
vibrating anvil.
At the upper end or portion of the driver is a lug 19 which is
slotted to receive the upper end of a link 20, which is pivoted to said lug by the
pin 21. The lower portion of the said link is pivoted at 22 to an upwardly
extending slotted arm 23 on the vibratory anvil frame 24. The lower extremity
of the link is extended laterally to receive one end of a coiled returning spring 25,
whose upper end is attached to a pin 26 supported by the upper portions of the
separated side plates 7 of the head 5. The link, the arm and the spring are all
arranged in the slot or opening formed by the plates 7, 7.
The
The frame or device 24 is pivoted at 27 at the lower portion of the head 5 and
between its pivot 6 and the bender. The said frame is bifurcated or is formed
with or carries on each side at its forward portion an arm or support 28, and also
midway between said arms or supports an anvil 29. The arms or supports 28 are
placed apart a distance about equal to the width of the bender and the upper edge
of each of said arms is formed with a notch 30 to receive one
end of a pin or wire 31 to be formed into a staple The inner
edges of the said arm co-operate with the outer edges of the bender to
form the cutting mechanism for removing the head and point of the pin or for
cutting the wire to size before the bending of the blank into staple form.
top of the angle is located slightly below the plane of the bottom of the notches 30
in the arms 28, and the front side of said anvil may be beveled at 32 to fully
escape the driver when the latter is descending to drive the formed staple through
the work. The width of said anvil is slightly less than the distance between
the inner walls of the side plates 10, 10, of the bender, so that the said anvil
may pass up between said plates and then out through the open back of the
bender. The lower or foot end of each side plate 10, of the bender is of a thick-
ness slightly less than the distance between the inner side of the arm 28 and the
adjacent side of the anvil, and hence may pass down between these two devices
in the forming operation of the staple, following the cutting above referred to.
In the operation of the contrivance the head 5 is thrown back on its pivot 6
to the desired extent, thus carrying the vibratory frame 24 up from the face
plate 2, when the papers to be stapled may then be placed on the bed. The
head is then swung forward and down until the arms 28 come to a rest or bearing

page_text: upon the top of the papers, at which time the lower end of the bender, stands
above the said arms in about the position shown at Figure 1. The pin or blank
to be formed into a staple may then be placed in the notches 30, after which
by a single blow upon the head 16 of the plunger, a blank of the proper size is
produced, then bent into inverted U-shaped form, and then driven through the
papers and clinched or set on the under side thereof. These several operation,
are carried on by the particular devices here involved in the manner now to be
described in detail.
The knob 16, being in front of the pivot 6 of the head 5, when struck causes
said head to swing down and the cutter and bender thereon to approach the pin
or wire, while at the same time the holder or support for said pin or wire resting
at its free end on the paper is rocked slightly as its pivot 27 descends with said
head, until the cutting edges of the bender strike the supported portions of the
pin or wire and cut off such ends, so as to produce a blank of a length equal to
the distance between the inner sides of the arms or supports 28, which blank at
its middle portion is at once forced upon the top of the anvil 29. The bender
continuing to descend then carries down the unsupported ends of the blank and
the staple is formed about said anvil, the lower end of the bender coming down
finally to a bearing on the paper, as represented at Figure 8. While the bender
is thus descending after the cutting operation, the anvil is at the same time
swinging up towards the back of the bender but the legs of the formed staple
remain in the grooves 13 in the bender. The said grooves register with the
notches 30 when the bender comes down to the cutting position, so that when
the bending oocurs (which operation takes place instantly after the putting
operation) the legs of the staple are formed at once and pass into the grooves 13 in
the bender. The anvil is tilted upwardly at this time, that is between the time
the wire is cut and the foot of the bender strikes the paper. By reason of the
fact that the pivot 27 of the anvil frame is caused to descend below the plane of
the top of the face plate 2, the said frame is thereby caused to rock or tilt on the
said face plate or upon the paper thereon at about the locality marked 33. At
about the time the bender foot comes to a bearing on the paper, the anvil frame
is rocked or tilted to such an angular position that the bottoms of the notches 30
are brought up and back to nearly the line of the back edges of the bender side
plates; and the anvil itself has swung upwardly and rearwardly to such an extent
that the forward edge of its top has retreated to a position slightly past the vertical
grooves 13 in the bender, at which time the lower end of the driver stands a short
distance above the horizontal plane of the forward edge of the anvil. Now as
the driver continues to descend under the force of the blow, it immediately
encounters the staple which has been left in the grooves 13 by the anvil, and
forces it downwardly through and out of said grooves and through the papers,
the crown of the staple fitting in the transverse groove in the driver, and the
legs of the staple are turned inwardly and upwardly by the clinching recesses 3
in the face plate, as shown at Figure 9, the paper being represented by the
numeral 34.
Figure 9 shows the formed staple in the grooves 13, the bender down upon the
work to hold it firmly in position, and the relative positions of the anvil and
driver at about the time the driver starts to descend to drive the staple. During
this driving action the link descends with the driver, and operating on the arm 23
of the anvil frame causes said frame to vibrate upon its pivot 27, and the anvil
to swing back out of the way of the driver and out through the back opening
in the bender to the position shown at Figure 7, the side plates 7, 7, of the head
being cut away or recessed as at 35 to permit the swinging back of the anvil
frame to the position shown at said figure. During the descent of the driver
and link the spring 25 is expanded and hence operates when the pressure is
removed to restore all of the parts to their normal positions. While the said
spring is expanded it acts with a downward pull or force on the head 5 and hence
serves to keep the bender down firmly on the pile of papers,

page_text: Various changes may be made without departing from the several features of
our invention as expressed in the following claims.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:-
1. In a
stapling machine, the combination with a bender and a driver, of a
swinging head or frame and a swinging anvil carried by said head or frame.
2. In a stapling machine, the combination with a bender and a driver, of a
swinging head or frame, and an anvil pivotally connected to said head or frame.
3. In a stapling machine, the combination of a swinging head or frame, an
anvil pivotally connected thereto, and a cutter and bender and a driver carried
by said head or frame.
4. In a stapling machine, the combination of a pivoted head or frame, a cutter
and bender secured to the front side of the same, a driver supported in said head
or frame and adapted to reciprocate through said cutter and bender, and a
vibratory frame pivoted to said head and carrying an anvil.
5. In a stapling machine, the combination of a pivoted head or frame, a cutter
and bender secured thereto at its front side, a driver adapted to reciprocate
through said cutter and bender, and an anvil carrying-frame pivoted to said
head or frame and connected to said driver.
6. In a stapling machine, the combination of a pivoted head or frame, a cutter
and bender carried thereby, a reciprocatory driver, an anvil carrying-frame
pivotally supported on said head or frame, and a link connecting said anvil
carrying-frame with said reciprocatory driver.
7. In a stapling machine, the combination of a pivoted head or frame, a cutter
and bender carried thereby, a reciprocatory driver, an anvil carrying-frame pivoted
to said head or frame between said bender and the pivot of the said head or frame,
a link connecting said anvil carrying frame with the said driver, and a returning
spring.
8. In a stapling machine, the combination of a pivoted head or frame carrying
a cutter and bender, and a driver, and a frame pivoted to said head or frame and
formed or provided with blank supporting means, cutting devices and an anvil.
9. In a stapling machine, the combination of a pivoted head or frame carrying
a cutter and bender and a driver, a device pivoted to said head or frame and com-
prising the blank supporting side arms or members and the intermediate anvil.
10. In a stapling machine, the combination of a pivoted head or support
carrying a cutter and bender and a driver, a device pivoted to said head or bender
and comprising the notched side arms, the intermediate anvil, and a rear arm,
a link connecting said last mentioned arm with the driver and a spring.
11. In a stapling machine, the combination of a base, a depressible head or
frame, and a blank-supporting cutting and anvil frame pivoted to said head or
frame. and so arranged that its forward portion rests upon the said base or the
papers thereupon and rocks or fulcrums upon said base or the papers thereupon
during the descent of said head or frame.
12. In a stapling machine, the combination of a base, a head or frame pivoted
thereto, a cutter and bender and a driver carried by said head or frame, and a
blank-supporting cutting and anvil frame pivoted to said head or frame and
adapted to fulcrum upon the said base or upon the papers thereon; in substan-
tially the manner set forth.
13. In a stapling machine the combination of a base, a head or frame pivoted
thereon and carrying a cutter and bender and a driver, a blank-supporting cutting
and anvil frame pivoted to said head or driver and adapted to fulcrum upon said
base or upon the papers thereon, a connecting rod between said last mentioned
frame and said driver, and a spring connected to said rod and to the head or frame.
14. In a stapling machine, the combination of a base, a head or frame pivoted
thereto, and carrying a cutter and bender which is open on its rear side, a driver

page_text: adapted to reciprocate in said bender, and a blank-supporting cutting and anvil
frame pivoted to said head or frame and connected to said driver.
15. In a stapling machine, the coinbination of a base, a head or frame movably
supported thercon and carrying a cutter and bender and a driver and a blank-
supporting cutting and anvil frame connected to said movable head or frame and
adapted to fulcrum upon the base or upon the paper thereon when the said head
or frame carrying the cutter and bender and driver is depressed.
16. In a stapling machine, the combination of a base and a depressible head or
frame carrying a cutter and, bender and a driver, and also a blank-supporting
cutting and anvil frame connected to said driver and arranged to be first actuated
by the said base of the paper thereupon and then by the said driver.
17. In a stapling machine, the combination of a head or frame, a bender, a
driver, and an anvil connected to the driver and pivoted to vibrate upwardly as
the driver descends.
18. In a stapling machine the combination of a head or frame, a cutter and
bender, a driver and a blank-supporting cutting and anvil device connected to
the driver and pivoted to vibrate upwardly as the driver descends.
19. In a stapling machine, the combination of a base having the raised front
portion, the pivoted side, plates 7, 7, the cutter and bender secured to said plates
the driver, the bifurcated blank-supporting cutting and anvil frame pivotally
attached to the said plates and having an arm extending therebetween the link
or rod connected at one end to said arm and at its upper end to the said driver,
and a coiled spring between said plates connected at one end to the said plates
and at its other end to the link or rod.
Dated this 13th day of October 1897.