US2093139A - Machine for equipping box parts with fastening means - Google Patents

Description

Sept

1937. A. L. ROSENMUND 2,093,139

MACHINE FOR EQUIPPING BOX PARIf S WITH FASTENING MEANS A Filed Sept. 12, 1935 '7 Sheets-Sheet l In 1 I h \o Q T 0 1 *0 0 0 Q\ E m/ E :3 9 (\l 3 Q kyfl I? Q A? A t? A? M INVENTOR. 8 3 \0 t ALRosENv muw M fi yj m P AQ Q 3 ATTORNEYS.

A. L. ROSENMUND Sept. 14, 1937.

MACHINE FOR EQUIPPING BOX PARTS WITH FASTENING MEANS 7 Sheets-Sheet 3 Filed Sept. 12, 1935 D m a w Q N l H I R. U m M M N Wfi |M 1 r R e I 5 M H on a 5 7 Wm H. 5 2 u 0 SW 5 33 B M 5 \T s 2 5 M la 76: 7 6 6 6 ob f; H 4 F o I. 8L \v y M 9m ATTORNEYS. v

Sept. 14, 1937. A. L. ROSENMUND 2,093,139

MACHINE FOR EQUIPPING BOX PARTS WITH FASTENING MEANS Filed Sepvt. 12, 1935 7 Sheets-Sheet 4 Q a V 0) Q 1 g r 1 I 1x! m V n ID q] g n \o (\l aw a:

A TTORNEYS.

P INVENTOR.

I' Q. LROSENMUN D Sept. 14, 1937. I A. ROSENMUND MACHINE FOR EQUIPPING BOX PARTS WITH FASTENING MEANS Filed Sept. 12, 1935' 7 Sheets-Sheet 5 mm o mw n on .D R S mm H m M V m m T A Sept. 14, 1937. A. 1.. ROSENMUND 2,093,139

MACHINE FOR EQUIPPING BOX PARTS WITH FASTENING MEANS Filed Sept. 12, 1935 7 Sheets-Sheet s INVENTOR. ALROSENMUND 194, M e %NEYS.

Sept. 14, 1937. A. L. ROSENMUND 2;093,139

MACHINE FOR EQUIPPING BOX PARTS WITH FASTENING MEANS J L INVENTOR.

G. L. .RO5E. NMUND BY 0 D fi/QML/ %;EYS w- Patented Sept. 14, 1937 UNITED STATES PATENT OFFICE MACHINE FOR EQUIPPING BOX PARTS WITH FASTENING MEANS Delaware Application September 12, 1935, Serial No. 40,240

28 Claims.

This invention relates to machines for equipping wired box parts with fastening means and particularly to machines for forming a bight on a wire secured to a box part and perpetuating the bight by driving the end of the wire into or through the box part.

It is an object of the invention to provide an improved machine of the character described.

It is a further object of the invention to provide a machine of the character described which may be economically manufactured and operated.

It is a further object of the invention to provide a machine of the character described which is durable in construction and efficient in operation.

Other objects will be in part obvious and in part pointed out hereinafter.

One illustrative embodiment of the invention is shown in the accompanying drawings, in which:

Figure 1 is a plan view of a machine embodying the invention.

Fig. 2 is a side elevation of the machine viewed from the right hand side of the machine with certain parts omitted for clearness of illustration.

Fig. 3 is a side elevation of the machine viewed from the other or left hand side.

Fig. 4 is a sectional view taken on the line 4-4 of Fig. 1.

Fig. 5 is a side elevation of the trip mechanism for throwing the machine intooperation, said view being taken on the line 55 of Fig. 1 and showing in dotted lines the normal position of the trip trigger arm and in full lines the position it assumes when moved by the incoming box part to throw the machine into operation.

Fig. 6 is a similar view but showing the position of the parts after completion of a fastener supplying operation and during removal of the finished box part from the machine.

Fig. 7 is an enlarged side elevation of a fastener supplying unit consisting of two fastener supplying heads each adapted to form and perpetuate a bight on the wire of a box part, one head being shown partly in section and the other head in full lines.

Fig. 8 is an enlarged plan view of a fastener supplying unit with certain parts omitted for clearness of illustration. In this view the shaft on which the operating cams are secured is not shown. The right end of the figure shows one of the fastener supplying heads, and the left end of the figure omits the head and shows the table or bed which lies directly beneath the head and raises and presents a box part to the fastener supplying head.

Fig. 9 is a side elevation of the mechanism shown in Fig. 8.

Fig. 10 is a plan view of two wire-connected box parts and portions of the fastener supplying mechanism for severing the wire between the box parts and bending the severed ends to form bights thereon. This view shows the position of the parts just as the wire is being severed.

Fig. 11 is a side elevation of the same.

Fig. 12 is similar to Fig. 10 but showing the position of the parts after the severed ends of the wire have been bent to form bights.

Fig. 13 is a side elevation of a fastener supplying head and the bed or table for supporting the box part showing the position of the parts after the wire has been bent to form a bight.

Fig. 14 is a similar view but showing the position of the parts after the end of the wire has been positioned for the prong-forming operation.

Fig. 15 is a similar view showing the position of the parts after the prong has been formed on the end of the wire.

Fig. 16 is a similar View but showing the position of the parts after the prong has been driven through the box part.

Fig. 17 is a side elevation of the mechanism for clinching the prongs on the underside of the box part. This View is similar to the View of the clinching mechanism shown in Fig. 16, but shows the position of the parts upon completion of a clinching operation.

Fig. 18 is an enlarged perspective View of a cam member which raises the wire end to position it for the prong-forming operation and which supports the wire end during a prong-forming and driving operation.

Fig. 19 is an enlarged perspective view of certain details of the prong-forming and driving mechanism.

Fig. 20 is an enlarged plan view of one end of a fastener supplying unit showing one of the fastener supplying heads and the operating cams therefor.

Fig. 21 is a plan view of a succession of wireconnected box blanks upon which the machine of this application is adapted to operate.

Fig. 22 is a plan view of a box blank after it has been operated upon by the machine of this Fig. 24 is a plan view of a box end after it has been operated upon by the machine of this application.

Figs. 21 and 23 show two different illustrative types of wire-connected box parts upon which the machine of this application is adapted to operate. In Fig. 21 is shown a succession of Wire-connected box blanks, each blank consisting of four sections designated respectively A, B, C and D connected together by wires W. The succession of box blanks shown in Fig. 21 is produced on a box blank machine which staples the binding wires W to the box blank sections, leaving sufficient space between successive blanks (as indicated at S in Fig. 21) to provide sufficient lengths of wire W to permit severing the wires between blanks and forming bights on the severed ends asshown at X in Fig. 22. When the four section blank shown in Fig. 22 is folded into box form. the bights X may be hooked one through another to complete the continuity of the wire binding and retain the sections in box form.

In Fig. 23 is shown a succession of wire-connected box ends E connected by wires W with similar spaces S between successive box ends.

In Fig. 24 is shown a box end after the wires between box ends have been severed and bights X formed on the wire ends. Bights X on the cnds may be hooked through openings in box sides to retain the end in place.

The machine of the present application is intended to receive the wire-connected blanks shown in Fig. 21, or the wire-connected ends shown in Fig. 23, sever the wires W connecting -bights and clinch the prongs which are driven through the box parts.

The illustrative box blanks shown in Fig. 21 are provided with three binding wires W while the illustrative box ends shown in Fig. 23 are provided with two binding wires W. Other types of box blanks or box ends may be provided with a different number of wires. The machine of this application, regardless of the number of wires secured to the box blanks or box ends, is

adapted at one operation to sever all of the wires and form bights on the severed ends. The machine therefore will be equipped with as many fastener supplying units as there are wires to be operatedupom'the different units being ad- :justable to accommodate variable spacing between the wires secured to the box parts. For simplification, only one fastener supplying unit is shown in the illustrative machine, but it will be understood that the machine can be wide enough to carry as many fastener supplying units as there are'wires to be operated upon.

Because each wire connecting two box parts is to be supplied with two bights, one for each box part, each fastener supplying unit is pro- I-videdwith two fastener supplying heads designated respectively H and H in Figs. 1 and2,

said heads being arranged to operate simultaneously.

Referring to Figs. 1 and 4, the several wiremanipulating mechanisms are supported by side frames 5 and cross bars 2. Adjustably secured to cross bars 2 are brackets "3 from which are suspended stock presser bars 4. Bars 4 are carried by rods 5 movable vertically in brackets 3 land are normally held yieldingly in lowered position by springs 6 interposed between brackets 3 and bars 4. Located directly beneath each presser bar 4 and in spaced relation thereto is a stock support bar 1. Bars 1 are supported by brackets 8 adjustably secured to cross bars 9 carried by-side frames l. The box parts to be operated upon are fed into the machine between bars 4 and 1. To accommodate materials of different thicknesses, cross bars 9 may be raised or lowered by means of shims It]. To position the box parts laterally of the machine, guide bars I! are adjustably secured to horizontal brackets l2 extending from side frames l, the bars H being adjustable toward and from each other on brackets l2 to accommodate materials of different widths.

Referring to Fig. 10, when two wire-connected box parts designated Y and Y are fed into the machine to correct position for a fastener supplying operation (controlled as hereinafter explained) cutting members sever the binding wire midway between the'box parts Y and Yand each severed wire is bent back toward its box part, as shown in Fig. 12, to form a bight. Thereupon, and as best shown in Figs. 14 to 1'7 inclusive, other instrumentalities form a prong on-the end of the wire of each bight, drive it through the box part and clinch the prong on the under side of the box part.

As best shown in Fig. 11, when the box parts are in correct position for a fastener supplying operation, the wire W connecting the two box parts lies directly over a table l3. Table I3 is supported by guide posts l4 which slide vertically in a casting liadjustably secured to cross bar 9 (see Fig. 2).

When the machine is started, table I3 is raised by the action of cams l6 carried by a shaft I! mounted to rotate in bearings carried by casting l5. Table 13 carries two upwardly extending projections l8 which engage and raise the wire W up above the plane of the box parts so that the severed wire ends may be readily swung toward the box parts when the wire is severed.

Mounted to slide vertically in table I3 is a cutter [9. When shaft I 'l is rotated to raise the table l3, cutter I9 is raised more rapidly than the table through the action of a cam carried by shaft I1. Cutter l9 engages the wire W and cuts it against a stationary knife 2| carried by a casting 22 adjustably secured to cross bar 2. When the wire has been raised and severed, the cutter I9 is lowered, the table, however, being held in raised position. The severed wire ends are then in a position to be operated upon by the fastener supplying unit now to be described.

As shown in Fig. 2, the fastener supplying unit comprising the two heads H and H is adjustably supported on cross bars 2. The wire-manipulating mechanisms of each fastener supplying head are supported by the casting 22 adjustably secured to cross bar 2.

As shown in Fig. '7, a shaft 23 (for operating both heads simultaneously) is journaled in brackets 24 secured to the two castings 22. Fastened to shaft 23 are a number of cams which are in timed relationship 'to operate the wire-manipulating mechanisms of the fastener supplying unit. Each set of cams operates the wire-manipulating mechanisms of one of the heads. As the construction and operation of the heads is the same, a description of one will suffice.

Referring to Fig. 4, when the wire has been severed a post 25 moves the wire toward a spindle 26 Post 25 is mounted to pivot on a pin 21 secured to casting 22 and is caused to move toward spindle 26 by a cam 28 on shaft 23. The upper end of post is held in contact with the cam 28 by means of a spring 29. The shape of the cam 28 is shown in Fig. 4 and causes a reciprocal lateral rocking movement of the post 25.

Referring to Figs. 10 and 12, when post 25 moves the severed end of the wire toward spindle 26, the spindle is rotated from the position shown in Fig. 10 to the position shown in Fig. 12 to bend the wire about the post 25 and form a b ight as shown in Fig. 12.

Spindle 26 is carried by a shaft 30 rotatably mounted in casting 22 and having fixed to its upper end a cam follower 3| which is held in contact with a drum cam 32 by a spring 33 (see Fig. 8). Rotation of cam 32 causes rotation of shaft 36 and spindle 26 carried thereby to bend the wire about the post 25, as shown in Fig. 12.

Referring to Figs. 18 and 19, when the wire is bent by the spindle 26 about the post 25, the end of the wire is positioned over a lip 34 formed on the side of a wire-positioning member 35 which is mounted to rock in casting 22 on a pin 36. When the wire is swung into position over the lip 34 it passes under a door 31 normally held open by a spring (not shown) on a shaft (not shown) about which it swings. When the wire is in position on the lip 34, door 31 is closed by the action of a cam follower 38 which is driven by a cam 39 on shaft 23. Cam follower 38 is held in contact with cam 39 through the action of a spring 46 which surrounds a guide rod 4 I.

As shown in Fig. 8, the cam follower 38 fits into guide holes 38a and 38b in casting 22 and the spring 40 fitson the guide rod M in hole 380 in casting 22. As the door 31 is closed the wire is held against member 35. As follower 38 is forced down by cam 39 it contacts a shoulder 42 on the side of member 35 and causes the member 35 to rock in a counterclockwise direction about pin 36. As member 35 is rocked its lip 34 raises the wire which is in contact with it, as shown in Figs. 13 and 14. At the same time, a plunger 43 formed as a part of a cam follower 44 descends and presses the wire against the box part as shown in Figs. 13 and 14.

As best shown in Fig. 13, the lower end of the plunger 43 has an angled surface which permits the wire to bend upwardly as shown in Fig. 14. This bend in the wire facilitates the driving of the prong into the box parts and prevents crushing of the prong during a driving operation. Plunger 43 and cam follower 44 are driven by a cam 45 on shaft 23 and are guided by slots 43a and 43b in casting 22 and by guide 430, as shown in Fig. 8.

As member 35 is rocked about pin 36 to raise lip 34, the wire is raised until it reaches the position shown in Fig. 14. When in this position rotation of member 35 ceases and the wire rests on lip 34. Lateral movement of the wire is prevented by the door 31 which has been closed.

With the wire in the position shown in Fig. 14 a prong-forming plunger 46 descends, bending the end of the wire which extends beyond the lip 34 downwardly to form a prong P on the end of the wire, as shown in Fig. 15. Plunger 46 is driven by a cam 41 on shaft 23. Plunger 46 is guided in slots 46a and 46b in casting 22 and is held in contact with cam 41 by a spring located in guide 460 (see Fig. 8).

As prong-forming plunger 46 descends to form a prong, member 35 is held against rotation by follower 38, thus permitting plunger 46 to bend the end of the Wire over the lip 34 and into a recess 48 between plunger 46and the end of lip 34, as shown in Fig. 15.

With the prong formed as shown in Fig. 15, a driver 49 descends, driving the prong through the box part. Driver 49 is actuated by a cam 56 on shaft 23. Driver 49 is guided in slots 49a and 49b in casting 22 and is held against cam 50 by a spring on guide 490 (see Fig. 8).

During a driving operation the wire is supported by lip 34 of rocking member 35, which is allowed to rock downwardly with the wire by the action of cam follower 38, the rate of descent of lip 34 being timed by the rise of follower 36 to correspond with the rate of descent of driver 49.

Lateral movement of the wire during a driving operation is prevented by door 31 which remains closed during a driving operation through the action of follower 38. Longitudinal movement of the wire is prevented by the prong-forming plunger 46 which remains down during a driving operation and by the lip 34 of member 35 which descends with the prong and at the same rate of speed during a driving operation. By means of this arrangement the prong is adequately supported against crushing during a driving operation, and as a result readily passes through the box part into a slot 5I formed in table I3 upon which table the box part rests and. which has been held in raised position during a driving operation.

Mounted in the slot 5| by means of a pin 52 is a clincher latch 53 (see Fig. 8). prong has been driven through the box part, clincher latch 53 is raised, as shown in Figs. 15 and 16, to clinch the end of the prong on the under side of the box part. Clincher latch 53 is raised by a cam 54 on shaft I'I.

When the prong has been clinched, the table I3 is dropped through the action of cams I6 on shaft I! and the box parts which have been operated upon are pushed or pulled through guide bars 4 and I to bring the next succeeding box part units into position to be operated uponfi While the table I3 will drop of its own weight when released by the cams I6, springs 55 are provided to insure positive return of the table to initial position. As shown in Fig. 4, springs 55 surround each table guide post I4 between the under side of the casting I5 and the enlarged lower extremity of the post. When the table drops the box parts accompany its downward movement, thus stripping the formed bights from the post 25.

It will be understood that one revolution of shafts 23 and I 1 effect one fastener supplying operation of both heads H and H and one up and down movement of the supporting table I3 which serves both heads and operates in timed relation with the fastener supplying heads. Upon completion of a fastener supplying operation, the parts are all restored to initial positionfor the next operation.

As shown in Fig. 1, power for operating shaft 23 is communicated thereto by a drive pulley 66 rotatably mounted on a shaft 6| journaled in bearings in side frames I, a beveled gear 62 fast on shaft 6| and a beveled gear 63 meshing with gear 62 and fast on shaft 23.

Pulley 66 is clutched to shaft 6I at selected times to cause one revolution of shaft 6| which through gears 62 and 63 causes one revolution of shaft 23. The clutch which is designated 64 in Fig. 3 is a one cycle clutch and is normally dis- After the engaged until the tripping mechanism presently to be described is operated.

The operation of the clutch 64 is controlled by a buffer arm 65 fast on a rock shaft 66 journaled in side frame I. Rock shaft 65 is rocked by an arm 01 fast on shaft 66 and a link 68 having a pin and slot connection with an arm 59 fast on a shaft I0 journaled in brackets secured to side frame I. Also fast on shaft 10 is an arm 'II pivotally connected to a link I2 which in turn is pivotally connected to the upper end of a trigger member I3, which trigger member is pivoted intermediate its extremities to a bolt or pin 14 adjustably secured in an elongated slot "I5 formed in an arm I6 fast on a rock shaft 1'! journaled in a bracket secured to side frame I. The slot I5 permits adjusting the trigger T3 for different spacings between box parts to be operated upon.

As shown in Fig. 5, the lower extremity of trig- :ger I3 normally occupies the position shown in dotted lines in the path of travel of the incoming box part. When the box part strikes the trigger I3 it moves the trigger from the dotted line position to the full line position. This movement rocks shaft I0 in a counterclockwise direction and through arm 69, link 68 and arm 6'? rocks shaft 66 also in a counterclockwise direction, and this movement of shaft 66 rocks buffer arm 65 and permits the clutch 64 to clutch pulley 60 to shaft 6|.

During a fastener supplying operation trigger I3 is raised above the work to the position shown in Fig. 6 to permit the completed work to be withdrawn from the machine. This movement is effected by a cam on shaft 6i which contacts and moves an arm 8| loosely mounted on shaft 66. Movement of arm BI moves a link 82 pivotally connected to an arm 83 fast on shaft 11. When shaft TI is rocked, arm 16 is raised, thus raising trigger 13 from the position shown in Fig. 5 to the position shown in Fig. 6, the link I2 functioning to swing the lower end of the trigger I3 back over the box part, as shown. When the high point of the cam 80 recedes from the arm 8|, the weight of the trigger and its connecting parts causes trigger E3 to move downward into contact with the box part which is being removed from the machine and when that box part has been removed from the machine the trigger drops down to its initial position shown in dotted lines in Fig. 5 to be engaged and moved by the incoming box part.

A positioning trigger similar to trigger I3 is located on the other side of the machine and designated in Fig. 2. Trigger 90 which does not operate the clutch but merely positions the box part at its side of the machine is pivotally mounted on a pin 9| which is adjustable longitudinally in a slot 92 formed in an arm 93 which, like the arm 15, is fast on rock shaft 11. Thus when shaft TI is rocked to raise trip trigger 13 in the manner hereinbefore described, positioning trigger 90 is also raised. When trigger 90 is raised by arm 93 it is pulled back over the box part by a spring 94.

To insure disengagement of the clutch upon completion of one cycle of operation, clutch buffer arm 65 is normally urged into contact with the surface of clutch 64 by means of a spring I00 connected at one end to side frame I and at the other end to link 68. Thus when triggers I3 and 90 are raised above the box parts and released from engagement with the box parts, spring I00 through link 68 and arm 61 will rock shaft 66 back to initial position and thereby disengage the clutch 64.

For driving shaft IT in timed relation with shaft 23, there is secured to one end of shaft 6| a sprocket wheel I02 (see Figs. 2 and 4). Sprocket I02 is connected by a sprocket chain I05 to a sprocket I03 fast on a shaft I 04 journaled in bearings adjustably supported on cross bar 2 to permit raising and lowering shaft I04. The arrangement is such that shaft BI and shaft I04 are rotated at the same rate of speed. Fast on shaft I04 is a beveled gear I06 which meshes with a beveled gear I01 on shaft I'I. Thus when pulley 60 is clutched to shaft 6|, shafts 6| and I04 will be given one revolution and through the beveled gear connections described, shafts 23 and I7 will also be given one revolution during which time the table I3 will be raised and lowered and the fastener supplying mechanism will be operated once.

Any slack in sprocket chain I05 which may result from raising shafts I I and I04 may be taken up by a rod H2 which may be adjustable vertically in brackets secured to side frame I.

The operation of the machine will be apparent from the foregoing detailed description. As the wire-connected box parts are fed into the machine they are positioned relative to the fastener supplying mechanism by trip trigger I3 and positioning trigger 90. Movement of trip trigger I3 by pressure of the box part thereagainst automatically causes the fastener supplying mechanism to go through one cycle of operation. This cycle of operation raises the triggers so that the completed work may be withdrawn from the machine, the triggers resuming their operative position when the finished work is withdrawn.

Control of the operation of the machine by the work as it is fed into the machine is particularly advantageous as it speeds up the operation of the machine, the work itself automatically starting the machine as it is fed into the machine by the operation.

It should also be noted that after the wire between box parts is severed the wire is bent to form a bight before the prong is formed on the end of the wire and that the prong is formed on the end of the wire at the place where the prong is driven. This insures a uniform correctness of position of the prongs for the driving operations and eliminates certain mechanisms heretofore required for positioning the prongs prior to a driving operation.

It should also be noted that the prongs after they are formed are supportedon all sides during a driving operation, thus insuring that the prong will be driven into the work instead of being fiattened or crushed on top of the work.

It will be understood that the invention is not to be limited to the specific embodiment shown for purposes of illustration and that all of the features of the invention need not be used conjointly as they may be used to advantage in various combinations and sub-combinations as defined in the claims.

I claim: 7

1. In a machine of the character described, the combination of wire-manipulating mechanisms operable upon a wire secured to a box part to form a bight on the wire and drive the end of the wire into the box part to perpetuate the bight, means to guide the box part to said mechanisms, and means operated by movement of the box part thereagainst to throw said mechanisms into operation.

2. In a machine of the character described, the combination of wire-manipulating mechanisms 5 operable upon a wire secured to a. box part to form a bight on the wire and drive the end of the wire into the box part to perpetuate the bight, and means operated by movement of the box part thereagainst to throw said mechanisms into operlO ation.

3. In a machine of the character described, the combination of mechanisms operable upon a flexible binder secured to a box part to form a bight on the binder and drive the end of the binder into the box part to perpetuate the bight, and means operated by movement of the box part thereagainst to throw said mechanisms into operation.

4. In a machine of the character described, the combination of mechanisms operable upon a flexible binder secured to a box part to form a bight ion the binder and drive the end of the binder into the box part to perpetuate the bight, and means automatically to throw said mechanisms into operation when the box part is in position to be operated upon.

5. In a machine of the character described, the combination of mechanisms operable upon a flexible binder secured to a box part to form a bight on the binder and drive the end of the binder into the box part to perpetuate the bight, and means automatically to throw said mechanisms into operation when the box part occupies a predetermined position relative to said mechanisms.

6. A machine for forming a bight on a wire 5 secured to a box part comprising, in combination, means to bend the wire a distance from its I end to form substantially a U-shaped bight, means operable after the bight is formed to bend the end of the wire to form 9. prong, and means to drive the prong into the box part.

'7. A machine for forming a bight on a flexible binder secured to a box part comprising, in combination, means to bend the flexible binder a distance from its end to form substantially a U- shaped bight, means operable after the bight is formed to bend the end of the binder to form a prong, and means to drive the prong into the box part.

8. A machine for forming a bight on a wire secured to a box part comprising, in combination, means to bend the wire a distance from its end to form a bight, means to bend the end of the wire to form a prong, and means to drive the prong into the box part; the prong-forming means being constructed and arranged to form the prong at the place it is driven.

9. A machine for forming a bight on a wire secured to a box part comprising, in combination, means to bend the wire a distance from its end 0 to form a bight, means to bend the end of the wire to form 2. prong, means to drive the prong into the box part, and means supporting the prong and movable therewith during a driving operation.

5 10. A machine for forming a bight on a wire secured to a box part comprising, in combination, means to bend the wire a distance from its end to form a bight, means to bend the end of the wire to form a prong, means to drive the 70 prong into the box part, and means tosupport the prong on all sides during a. driving oper-- ation.

11. A machine of the character described comprising, in combination, means to support a box 75 part having a wire secured thereto, means suspended above the box part to bend the wire to form a bight thereon, and means to drive the end of the wire into the box part to perpetuate the bight.

12. A machine of the character described com- $1.

prising, in combination, a support for a box part having a wire secured thereto, means located above the box part to bend the wire to form a bight thereon, means to present the box part to the bight-forming means, and means to driver the end of the wire intothe box part to perpetuate the bight.

13. A machine of the character described comprising, in combination, means to support a wired box part, a spindle located above the box1 part to form a bight on the wire, means to present the wire thereto, and means to drive the end of the wire into the box part to perpetuate the bight.

14. A machine of the character described comprising, in combination, means to support az wired box part, a spindle suspended above the box part to form a bight on thewire, and means to drive the end of the Wire into the box part to perpetuate the bight.

15. A machine of the character described com- 25 prising, in combination, means tosupport a wired-box part, a post and spindle located above the box part to form a bight on the wire, means to present the wire thereto, and means to drive the end of the wire into the box part. 30

16. A machine of the character described comprising, in combination, a support for a wired box part, means located above the box part to bend the wire to form a bight thereon, a vertically movable table to present the wire to said 35 bight-fcrming means, and means to drive the end of the wire into the box part.

1'7. In a machine of the character described, the combination of wire-manipulating mechanisms to form a bight on a wire secured to a box part, a vertically movable table to present the box part to said mechanisms, and means independent of the table to guide the box part to said mechanisms.

18. In a machine of the character described, 45 the combination of wire-manipulating mechanisms to form a bight on a wire secured to a box part, a vertically movable table to present the box part to said mechanisms, and means independent of the table to position the box part. 5

19. A machine of the character described comprising, in combination, means to support a wired box part, wire-manipulating mechanisms suspended above the box part to form a bight on the wire and to drive the end of the wire into the 55 box parts to perpetuate the bight, an overhead shaft, and cams on said shaft to operate the wiremanipulating mechanisms.

20. A machine of the character described comprising, in combination, means to support a pair of wire-connected box parts, means to sever the wire between box parts, means to bend each severed end toward its box part to form a bight, means operable after the bights are formed to bend the end of each wire to form a prong thereon, and means to drive the prongs into their respective box parts.

21. In a machine of the character described, the combination of a support for a wired box part, mechanisms suspended above the box part to bend the wire to form a bight thereon and to drive the end of the wire into the box part to perpetuate the bight, and means to raise the wire to present it to said mechanisms.

.22. In a machine of the character described,

the combination of a support for a wired box part, means suspended above the box part to bend the wire to form a bight thereon, means suspended above the box part to form a prong on the end of the wire after the bight is formed, and means to drive the prong into the box part to perpetuate the bight.

23. In a machine of the character described, the combination of mechanisms suspended above the box part to bend the wire to form a bight, to bend the end of the wire to form a prong thereon and to drive the prong into the box part; said mechanisms being constructed and arranged to form the prong at the place it is driven.

24. A machine for forming a bight on a flexible binder secured to and extending from a box part comprising, means to bend the flexible binder a distance from its end to swing the end of the binder over its box part, means operable after the binder has been bent to form a prong on the binder end, and means to drive the prong into the box part.

25. In a machine of the character described, the combination of mechanisms operable upon a flexible binder secured to and extending from a box part tosever the binder a distance from the box part, to form a bight on the binder and to drive the end of the binder into the box part to perpetuate the bight, and means operated by movement of the box part thereagainst to throw said mechanisms into operation.

26. A machine of the character described comprising means to support a pair of box parts connected together with a flexible binder, means to sever the binder between box parts, means to bend each severed end of the binder toward its box part to form a bight, and means operable after the bights are formed to bend the end of each binder to form a prong thereon, and means to drive the prongs into their respective box parts.

27. In a machine of the character described, the combination of mechanisms operable upon a flexible binder secured to and connecting two box parts to sever the binder between box parts, form a bight on each severed end of the binder and drive the severed ends into the box parts to perpetuate the bights, and means operated by movement of a box part thereagainst to throw said mechanisms into operation.

28. In a machine of the character described, mechanisms operable upon a flexible binder secured to and connecting two box parts to sever the binder between box parts, form a bight on each severed end and drive the ends into the box parts to perpetuate the bights, and means automatically to throw said mechanisms into operation when the box parts occupy a predetermined position relative tosaid mechanisms.

ALFRED L. ROSENMUND.

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