US3568729A

US3568729A - Devices for clipping and looping ends of helical binders

Info

Publication number: US3568729A
Application number: US815821A
Authority: US
Inventors: Albert Freundlich; Nicholas M Diakoff
Original assignee: Freundlich Gomez Machinery Corp
Current assignee: Freundlich Gomez Machinery Corp
Priority date: 1969-04-14
Filing date: 1969-04-14
Publication date: 1971-03-09
Anticipated expiration: 1988-03-09

Abstract

Devices positioned at the ends of a helical coil binder threaded through openings in a notebook or pad, clip the ends of the binder, then bend the clipped ends longitudinally inwardly around the outside of adjacent convolutions of the binder and then loop portions of the inwardly bent ends radially inwardly beneath and inside of said adjacent convolutions and then bend the ends longitudinally outwardly to form loops, and close the loops sufficiently to prevent the wire portions which pass through the loops, from coming out of the loops. These devices each include a first member carrying a clipper, a second member carrying a bending cam, a third member carrying a looping cam, and a single control element to activate all these three members, successively.

Description

[ 5 6] References Cited UNITED STATES PATENTS 2,161,689 6/1939 Strandberg................... 140/927 Primary Examinerl.,owell A. Larson Attorney-J. B. Felshin Bronx; Nicholas M. Diakofl', Astoria, N .Y. [21] Appl. No. 815,821

Apr. 14, 1969 Mar. 9, 1971 Freundlich-Gomez Machinery Corp. College Point, N.Y.

United States Patent [72] Inventors Albert Freundlich [22] Filed [45] Patented [73] Assignee ABSTRACT: Devices positioned at the ends of a helical coil binder threaded through openings in a notebook or pad, clip the ends of the binder, then bend the clipped ends longitudinally inwardly around the outside of adjacent convolutions of the binder and then loop portions of the inwardly bent ends radially inwardly beneath and inside of said adjacent convolu- D LOOPING ENDS 0F tions and then bend the ends longitudinally outwardly to form loops, and close the loops sufficiently to prevent the wirepor- 22 claimszl Drawing Figs tions which pass through the loops, from coming out of the [52] US. loops.

[54] DEVICES FOR CLIPPING AN HELICAL BINDERS 9 140/927 These devices each include a first member carrying a B21f35/02 clipper, a second member carrying a bending cam, a third Field 140/923, member carrying a looping cam, and a single control element to activate all these three members, successively.

PATENTEDHAR 91% $568,729

sum 2 0F 6 INVENTORS AT TO RN E Y ALBERT FREUNDLICH BY NICHOLASMDIAKOFF PATENTED MM 9 I971 SHEET 3 BF 6 NICHOLASMDIAKOFF ATTORNEY mimmm SIS?! 3.568.729

SHEET l 0F 6 INVENTORS ALBERT FREUNDLICH NICHOLASMDIAKOFF ATTORNEY PATENTEU HAR 91911 SHEET 5 OF 6 INVEN'I'ORS ALBERT FREUNDLIC H NICHOLASMDIAKOFF ATTORNEY PATENTEUHAR 9197: $568,729

sum 8 or 6 FIG/4 FIGJO R Q g ALBERT FREUNDLICH NICHOLASMDIAKOFF AT TORNEY DEVICES FOR CLIIPPING AND LOOPING ENDS OF I-IEIJICAL BINDEIRS CROSS REFERENCE TO RELATED APPLICATION The device disclosed in this application is for making the looped ends of the helical coil shown in application of Albert Freundlich Ser. No. 686,619 filed Nov. 29, 1967.

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to devices for clipping and lockingly looping the ends of helical coil binders around adjacent con- 4 volutions.

2. Description of the Prior Art Devices for clipping and bending ends of helical coil binders are known in U.S. Pat. 2,961,012 issued Nov. 22, 1960 to applicant Albert Freundlich.

SUMMARY OF THE INVENTION An object of this invention is to provide in devices of the character described mounted on a machine for threading a helical coil wire through openings in a looseleaf notebook or pad, means for first clipping the wire at the ends of the notebook, means for then bending the clipped ends longitudinally inwardly at the outside of the next adjacent convolutions of the coil and means to then loop the bent wires radially inwardly and then longitudinally outwardly and substantially close the loops to lock said looped ends to said adjacent convolutions,

Another object of this invention is to provide in devices of the character described a first member-carrying a clipping device, a second member carrying a bending cam, and a rotary control element to actuate said three members to carry out the clipping, bending and looping operations successively.

Still another object of this invention is to provide in a device of the character described, means to adjust the angular movement of said rotary control element. Yet another object of this invention is to provide in devices of the character described, means to close the loops, to prevent the wire which passes through the loops from coming out therefrom.

A further object of this invention is to provide devices of the character described having means to hold the end convolutions of the coil against movement during the clipping, bending and looping operations.

Yet a further object of this invention is to provide in devices of the character described, means on the bending cam to hold or support the adjacent convolutions of the wire against movement during the looping operation by the looping cam.

A still further object of this invention is to provide strong, rugged and durable devices of the character described which shall be relatively inexpensive to manufacture, which shall be smooth and positive in operation, and which shall yet be practical and efficient to a high degree in use.

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

The invention accordingly consists in the features of construction, combinations of elements, and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope of invention will be indicated in the following claims.

BRIEF DESCRIPTION OF THE DRAWING FIG. 11 is a perspective view of one of the devices embodying the invention in position to clip one end of a helical coil threaded through openings in a looseleaf notebook;

FIG. 2 is a perspective view showing a looped end of a coil made with a device embodying the invention;

FIG. 3 is a top view of the structure shown in FIG. 2;

FIG. 4 is a cross-sectional view taken on line 41- 1 of FIG. 1;

FIG. 5 is a cross-sectional view taken on line 5-5 of FIG. 4;

FIG. 6 is a cross-sectional view taken on line 6-6 of FIG. 4;

FIG. 7 is a cross-sectional view taken on line 7-7 of FIG. 4;

FIG. 8 is a cross-sectional view taken on line 6-8 of FIG. 5;

FIG. 9 is a cross-sectional view taken on line 9-9 of FIG. 5;

FIG. 10 is an enlarged vertical cross-sectional view of the lower end of the structure shown in FIG. 5 and illustrating the clipping operation;

FIG. 11 is a bottom plan view of the structure of FIG. 10;

FIG. 12 is a view similar to FIG. III, but showing the bending operation;

FIG. 13 is a bottom plan view of the structure of FIG. 12;

FIG. 14 is a view similar to FIG. 12 but showing the beginning of the looping operation;

FIG. 15 is a bottom plan view of the structure shown in FIG. 14;

FIG. 16 is a view similar to FIG. 14 but showing the closing of the loop;

FIG. 17 is a bottom plan view of the structure shown in FIG. 16;

FIG. 18 is a perspective view of the bending cam;

FIG. 19 is another perspective view of the bending cam, looking from a side opposite to the side shown in FIG. 18;

FIG. 20 is a perspective view of the looping cam and its rotating pinion; and

FIG. 21 is another perspective view of said looping cam shown in FIG. 20.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now in detail to the drawing, 10 designates generally a machine for making helical coil binders and binding looseleaf books therewith. A machine of this type is shown in said U.S. Pat. No. 2,961,012. In the machine shown in said patent the ends of coil are clipped or cut and crimped or bent inwardly. One improvement disclosed in the present invention resides in the means for clipping and looping the ends of the coil binder to produce the loops disclosed in FIGS. 2 and 3 of the drawing herein, and disclosed in said application (Ser. No. 686,619 filed Nov. 29, 1967).

The machine 10 comprises generally of a top wall 11 from which a front wall 112 extends downwardly. Mounted on the top wall 11 are a pair of bearings 14 supporting a horizontal rotary shaft 15 on which a pair of similar, symmetrically disposed clipping and looping devices 16 are mounted for clipping the ends of a coil wire W threaded through equally spaced openings 17 of a looseleaf book 18.

As disclosed in said U.S. Pat. No. 2,961,012, wire may be coiled helically and fed or threaded through openings of looseleaf book. The clipping is done simultaneously at both ends. Since both devices 16 are similar, only one of them (the one at the right side or leading end of wire feed) will be shown and described. I-Ience only one bearing 14 is shown and described.

Each of the devices 16 comprises an actuator mechanism 20 for a clipping and looping mechanism or assembly 21, both mounted on the shaft 15 adjacent each other and at one end of the shaft, as shown in FIG. 1.

The actuator mechanism 20 comprises a collar 24 mounted .on shaft 15 and located adjacent bearing 14. Collar 24 is keyed to the shaft for rotation therewith, by means of key 25. Collar 24 has a radial looped extension 26 formed with a radial slot 27. In said slot is a circular disc 28 of a diameter sub stantially equal to the width of slot 27. On disc 28 are eccentric pins 29. Also on said shaft 15 is a housing 30 comprising a pair of parallel plates 31 having extensions 32 carrying bushings 33 through which shaft 15 passes. Plates 31 are located on opposite sides of collar 24 and are interconnected by pins or bolts 35 passing through suitable openings in said plates and through registering openings in a spacer plate 36. A top plate 37 is attached to the upper edges of said plates 31.

Plate 37 has a row of sockets 38 at its underside. Plates 31 carry a cross pin 39 on which is rotatably mounted a member 40 projecting forwardly. A coil compression spring 411 is interposed between the upper edge of member 416 and plate 37. The upper end of the spring 41 is received within one of the sockets 33. Screwed to the forward end of member 40 is a pin 42 carrying

sleeves

43, 44 disposed in tandem and retained on said pin by a screw 45 screwed to the outer end of said pin and holding a washer 46 against the outer end of roller 44.

It will now be observed that the angular relationship between collar 24 and housing 30 may be adjusted by turning the disc 28. Pins 29 are journaled in suitable openings in plates 31. This turning may be accomplished by means of a hexagonal head 29a fixed on one of the pins 29. By rotating said hexagonal head 29a, disc 28 is rotated to cause angular movement between housing 30 and collar 24. Shaft is rotated in any suitable manner in a counterclockwise direction, looking at FIG. 9, in predetermined timed relationship to the feed of the coil, and through a predetermined angle, to actuate the clipping and looping mechanism 21. One way to actuate the shaft is disclosed in said US. Pat. No. 2,961,012 supra. By properly adjusting the angular relationship between the collar 24 which is fixed to the shaft, and the housing 30, the proper angular movement of pin 42 which actuates clipping, bending and looping members (to be described hereinafter) in mechanism 21, may be accomplished. The spring 41 ensures against over actuation of the clipping, bending and looping members since said spring allows for movement of member 40 relative to the housing 30, which is fixed to rotate with the shaft.

The mechanism 21 comprises a bushing 50 received on shaft 15. Fixed on said bushing 50 is an arm 51 which extends forwardly of the shaft. The bushing may be held against longitudinal movement on shaft 15, in any suitable manner. At the forward end of arm 51 is a vertical arm 52. Fixed to the front face of arm 52 is a plate 53, the front face of which is shown in FIG. 7, and shown in vertical cross section in FIG. 4. Plate 53 is fixed to arm 52 by means of bolts 54 passing through threaded openings 54a, respectively of said plate. Said bolts 54 also pass through registering openings 56a in plate 56 which contacts the front face of plate 53, and through suitable registering opening 57a in plate 57 which lies against the front face of plate 56. Said bolts 54 screw into threaded holes 52a in arm 52. Plate 57 is countersunk to receive heads of bolts 54. Said

plates

53, 56, 57 are also pinned together by a pin 59 passing through registering openings in said plates. Pin 59 is internally threaded to received screws 60 at both ends.

As shown in FIG. 4, sleeve 44 projects forwardly beyond plate 57 for the purpose hereinafter explained.

Fixed to the side of arm 52 facing mechanism is a horizontal pin 65 which is slightly bent forwardly at an intermediate portion thereof. Said pin 65

crosses sleeves

43, 44 and is disposed thereabove. When mechanism 20 is swung upwardly by means well known (not shown herein but disclosed in said US. Pat. 2,961,012), pin 65 will be engaged by sleeve 43 to swing mechanism 21 upwardly, while the coil is being threaded through said openings 17 in looseleaf book 18.

Adjustable means is provided to stop downward swinging of mechanism 21 when mechanism 20 is swung downwardly. To this end a screw 66 is threaded through a threaded opening 67 in arm 51. A handwheel 68 is fixed to the upper end of screw 66. A lock nut 69 on screw 66 may be screwed against the top surface of arm 51 to hold the screw in adjusted position. The lower end 70a of said screw contacts the upper surface of wall 1 1.

Attached to

plates

53, 56, 57 by means of a transverse pin 70, is a plate 71 contacting the outer surface of plate 57. The pin 70 passes through registering bores in

plates

53, 56, 57 and 71. Pin 70 is internally screw threaded at both ends to receive headed screws 72 screwed into the screw threaded ends of pin 70 and serve to hold the pin from loosening.

Plate 71 has a plate portion 75 spaced from plate 57, and from the lower end of which, extension or ledge 76 extends rearwardly. Ledge 76 has a pair of

parallel slots

77, 78 inclined to correspond to the pitch of the coil, and through which adjacent convolutions of coil W project, as shown in FIG. 11. The side of plate 70 adjacent plate 57 is recessed as at 79 to receive a clipping lever 80 pivoted on a transverse pin 81. Pin 81 passes through an opening 82 in plate 75 (FIG. 5),

traverses cut out 79, and passes through an opening 83 in plate 57. Lever has a hub 84 formed with an opening 85 through which pin 81 passes. Lever 80 has a downwardly extending arm 86 projecting down to just above ledge 76 (FIGS. 4 and 11) and is provided with a clipping or sheering edge 87 normally positioned to one side of slot 77. When a coil is in position for clipping, rotation of the lever 80 in a clockwise direction (FIG. 10) will cause edge 87 to sweep across slot 77 just above

fingers

88, 89, 90 formed in ledge 76 by the

slots

77, 78. The upper surfaces of said

fingers

88, 89, 90 are flat and coplanar.

Slots

77, 78 have upwardly and inwardly inclined curved surfaces to facilitate insertion of convolutions of the coil into said slots. The plane of the upper flat surfaces of

fingers

88, 89, 90 is located below the axis of coil W when the latter is in position for clipping.

Plate 56 (FIG. 6) has a V-shaped recess in its face adjacent plate 57. A pivot pin 96 traverses said recess and passes through horizontally aligned

opening

98 and 99 in

plates

56, 57 respectively. Pivotedon said pin 96 is a control lever 100 which projects beyond

plates

56, 57 and passes beneath sleeve 44. Lever 100 has an intermediate hub 101 formed with an opening 102. Fixed to the upper end of plate 56 is an anchor pin 103. Pin 103 has a vertical arm 103a fixed within an opening or bore 104 extending down from the upper edge of plate 56, and a horizontal arm 103b parallel to shaft 15 (FIGS. 5, 6) and extending to a position above said hub 101. A coil tension spring 105 interconnects the outer end of arm 10312 to the hubfOne hooked end of the spring engages within opening 102, and the other hooked end of the spring engages a peripheral groove in said arm 103k. Thus, spring 105 tends to rotate control lever 100 in a counterclockwise direction, looking at FIG. 5 and 6 of the drawing. FIG. 5 shows the normal, inoperative position of the control lever 100.

Clipping lever 80 has an upper arm or portion 108 overlapping a portion 110 of the control lever located between hub 101 and said

plates

56, 57. Said portion 110 of the control lever (FIG. 8) is formed with a horizontal opening 111. A control pin 112 passes through said opening 111 and is fixed to said control lever. Pin 112 extends to opposite sides of the control lever. The front end of the pin 112 is designated in the drawing by numeral 112a and the rear end by numeral 112b. The upwardly extending arm 108 of clipping lever 80 is formed with a V-shaped slot 113 which comprises an upwardly extending slot portion 113a inclined away from mechanism 21 and from the lower end of which extends a slot portion 1l3b inclined downwardly and away from mechanism 21. The end 112a of pin 112 passes through slot 113, and in the normal, inoperative position of the device, is located at the upper end of slot portion 113a.

When mechanism 20 is swung down, sleeve 44 engages the upper side of the outer end 100a of the control lever to swing the control lever in a clockwise direction, looking at FIG. 5 and 6. Pin end 112a moving in slot portion 113a causes lever 80 to rotate about pivot pin 81 in a clockwise direction clip the wire W. Plate 57, at its surface facing plate 56, is formed with a recess or cut out similar in shape to cut out or recess 79in plate 71. Opening 83 opens to said cut out. Pin 81 passes through opening 83 in plate 57 and projects into said cut out 120.

A bending lever 121 is pivoted on the portion of the pin 81 which projects into cut out 120. Said lever 121 has a hub 122 located in said cut out 120, and is formed with an opening 123 to receive pin 81. Extending down from hub 122 is an arm 125 extending below the lower end of plate 57. Arm 125, in normal position, lies alongside but spaced from arm 86 of clipping lever 80 in parallel relation thereto. Said arm 125 at its lower end, is formed with a sharp camming lug 126 of V-shaped cross section, inclined downwardly and away from mechanism 20. Lug 126 has an inclined outer edge 127 inclined rearwardly, downwardly and away from mechanism 20. Said arm 125 is also formed at its lower end with a bending lug 128 of V-shaped vertical cross section, having a flat surface 128a at one side 125a of said arm and in a plane parallel to plate 57,

and terminating in a point 12%. Said lug 128 has a sharp curved lower edge 129 which extendsfrom point 1219b rearwardly and upwardly to the opposite side l25b of said arm 125. Lug 123 projects down below lug 126. One face 128b of lug 128 is inclined to conform to the pitch of the convolutions of the coil. The opposite face 1230 of lug 123 is concave.

The positions of

lugs

126, 126 relative to clipping edge 87 of the clipping lever, in the normal (unoperated) condition of the device, is illustrated in FIG. 10. As shown in said FIG. lugs 126, 128 are located above the lower end of lever 80, and to one side of the convolution of the coil W which is to be cut by clipping edge 87, and just below the top or crest of said convolution.

Said lever 121, shown in full lines in FIG. 6 has an upper arm 130 formed with a slot 131 through which pin end 112a passes. Slot 131 has an upper portion 131a inclined upwardly and toward mechanism 20, and from the lower end of which, slot portion 13117 is inclined downwardly and toward said mechanism 20. Slot portion 131a bulges below pin portion 112a when the mechanism is in normal, nonoperating position. The pin end 112a is in the upper end of slot portion 1310 but is spaced from the lower portion of the slot as seen in FIG. 6. Thus when control lever 100 is rotated in a clockwise direction, clipping lever 80 is rotated to clip the wire before lever 121 begins to be rotated (upon pin end 1120 contacting lower edge 1310 of slot portion 131a). Prior to the pin 112a entering slot portions 11% and 131b, both levers rotate. When pin end 112a enters slot portion l13b of lever 80 and slot portion 131k of lever 121, further rotation of said control lever will not rotate said

levers

80, 121 further.

With such construction, as lever 121 begins to rotate, the lug 126 at the lower end of arm 125 of lever 121 engages beneath the crest of the severed convolution of the wire and raises it, moving it radially upwardly to the outer side of the next adjacent convolution of the wire. As the lever 121 continues moving in a clockwise direction from the position of FIG. to the position of FIG. 12, said lug 126 starts to bend the severed and raised portion of the wire longitudinally inwardly, to the left, looking at FIG. 12 and toward the face 125b of arm 125 of lever 121. As the lever 121 continues rotating, the wire is bent fully back as shown at 130a in the position of FIG. 12. This motion continues until face 128!) of lug 128 contacts the convolution of the wire next to the clipped convolution. This position is shown in FIG. 14. Means is provided for bending substantially the outer half of the bent back portion 130a of the wire, radially inwardly about said next convolution and then longitudinally outwardly and closing the loop as shown in FIG. 16. To this end plate 53, as shown in FIG. 7, is formed with recess 132 on its face 53a which lies against plate 56 forming a thinner wall 133 (FIG. 4). Wall 133 is formed with a through opening carrying a pin 134 (FIG. 7) on which is mounted a segmental gear member 135. Member 135 has a segmental gear 136 disposed in recess 132. Said recess 132 communicates with slot 137 extending to the edge 53b of plate 53 adjacent mechanism 20. The hub 135a of member 135 projects through slot 137. Extending from hub 1350 is a short arm 138 adapted to be engaged by pin end 112b after the clipping lever 80 and bending lever 121 have been fully moved. Thus, arm 138 is disposed below pin 112 a sufficient distance not to be engaged by pin end 1121) until

levers

80, 121 have stopped rotating as when pin end 1120 is in slot portions 113b, 13112 of

levers

80, 121, respectively.

Carried by wall 133 and disposed in recess 132, is a pin 140 carrying a pinion 1 11 meshing with segmental gear 136. Rotatable pin 70 and disposed in recess 132 is a segmental gear member 145 having a segmental gear portion 146 of smaller diameter meshing with pinion 141, and a segmental gear portion 1417 of greater diameter, for the purpose hereinafter appearing.

Extending down from the lower end of plate 53 is an extension 150. Recess 132 extends down into said extension or bore 150. Extension 150 has an opening 150a.

Plate 56 has at its lower end, a downward extension 151 formed with

inclined slots

152, 153 which match up with or are aligned with

slots

77, 76 respectively. Thus, when a coil is threaded through a book 18, one convolution will engage in

slots

77, 152 and straddle the space between ledge 76 and lug 151, while the next adjacent convolution will be received in

slots

78, 153 and will straddle or cross the space between ledge 76 and lug 151 (FIGS. 10 to 17).

Lug 151 is formed with a bore or cylindrical opening 155 concentric with bore or opening a. Mounted on

lugs

150, 151 is the looping cam member 160. Said member 161) comprises a pin 161 journaled in opening 150a. Coaxial with pin 161 is a pinion 162 which is received in recess 132 and meshes with said larger segmental gear portion 147. Extending from pinion 162 is a shank 163 journaled in opening of extension 151 of plate 56. Shank 163 is formed with a cut out 164 forming a connecting part 165 to an end disc 166. Disc 166 is formed with a radial slot 167 slightly longer than the radius. The open end of slot 167 is located near one edge 168 of face 169 of the connector part. The other edge 168a of face 169 extends to the disc. Face 163 is inclined corresponding to the pitch of the coil to accommodate part of the convolution which is inserted into slot 167. In normal position slot 167 opens downwardly and the outer surface 170 of disc 166 is coplanar with a depressed surface 171 in the lower end of face 172 of plate 56. A thin plate 175 contacts said depressed surface 171 and is fixed to plate 56 by said pin 70 and screws 72. Plate 175 is formed with an opening through which pin 70 passes. Plate 175 may also be pinned to plate 56 by other suitable locating pins. Plate 175 has a downward extension at its lower end formed at one end with a beveled vertical edge 181.

Extending outwardly from disc 166 is a looping lug disposed at the periphery of the disc beyond the closed end of slot 167. Lug 185 has an undercut inwardly inclined end edge 186 at one end, and a curved convex inner surface 187. In normal position edge 188 of lug 185, opposite to undercut edge 186, contacts edge 181 of plate 175 as shown in FIG. 10. Said edge 188 is aligned with a plane bisecting slot 167.

Means is provided to hold member 135, pinion 141, segmental gear member 1 15, and loop cam member 160 in their normal positions shown in FIGS. 10 and 11. To this end, plate 53 (FIG. 7) is formed with a vertical bore 190 extending from the upper end of said plate, downwardly to recess 132. The bore 190 may extend beyond surface 53a of said plate 53. The upper end of bore 190 is plugged by a pin 191 held in place by a cross-pin 192. Within bore 190 is a coil compression spring 193. Within said spring is a pin 194 having a head 195 at its lower end contacting an upper edge 198 of segmental gear 136. The spring 193 presses down on segmental gear 136 biasing segmental gear member 135 in a counterclockwise direction, thereby tending to raise arm 138.

When control arm 100 is lowered, pin and 112!) contacts arm 138 and rotates segmental gear member 135 in a clockwise direction, said spring 193 is compressed, and gear 136 rotates pinion 141 in a counterclockwise direction, which in turn, rotates segmental gear member 145 in a clockwise direction, which therefore rotates looping cam member 160 in a counterclockwise direction.

The looping cam member 160 is not moved away from normal position until after the

cam members

80 and 121 have reached positions of FIG. 12. Thereafter, continued movement of the control member 100 downwardly does not move said

cam members

80 and 121, but then engages arm 138 of segmental gear member 135 to rotate the latter, thereby causing looping cam member 160 to rotate in a counterclockwise direction, looking at FIG. 13. As this movement starts, lug 135 moves away from beveled edge 181 and rotates about the horizontal axis of looping cam member 160. At this time lug 123 of arm 125 is in supporting contact with the convolution of the coil next adjacent to the bent end 1311a of the coil. The undercut edge 186 of lug 185 engages the outer end of bent wire portion 130a and bends substantially the outer half of said bent end wire portion, radially inwardly around said next adjacent convolution as shown in FIG. of the drawing. The portion of the coil which passes through slot 167 in disc 166 is located substantially at the axis of member 160, so that said member can rotate without effecting said portion of said wire. The undercut of edge 186 keeps the outer portion of the bent end of the wire at the outer surface 170 of disc 166. As this rotary motion continues, lug 185 loops said outer portion of said bent end 130a around the inside of said next adjacent convolution and then longitudinally outwardly (to the right looking or FIG. 16) and around lug 128 of cam arm 125. The bent back wire contacting ridge 129 is moved toward face 125b of the cam arm 125 to keep the loop in a single radial plane and to prevent twisting the wire of the loop. As the lug 185 completes its movement to the position of FIG. 16, the outer convex surface 187 of lug 185 pushes the outer end of the looped wire against the concave surface 1280 of cam lug 128, to close the loop so that the second convolution of the coil cannot come out of the loop.

When the shaft 15 is thereafter moved up, spring 105 will raise the control lever 100 which will retract

levers

80 and 121 to their normal positions, and pressure will be removed from arm 138 to allow spring 193 to rotate gear member 135, pinion 141, gear member 145 and loop cam member 160 back to normal position. As mechanism 20 is raised, pin 65 is engaged by roller 43 and mechanism 21 is raised up away from book 18. The book can then be removed.

When member 160 is back to normal position, the slot 167 extends down, to permit raising of mechanism 21 off the coil.

The coil wire W is threaded into the book to a point where the leading end of the coil is beyond the book, so that the coil is clipped, bent and looped at both ends of the book simultaneously. After one binder is completed and the bound book removed, another book with holes, is placed in position and the coiled wire is rotated and threaded through the holes in the book and just beyond the book, and then the clipping bending and looping operations can be repeated.

it will thus be seen that there is provided an article in which the several objects of this invention are achieved, and which is well adapted to meet the conditions of practical use.

As possible embodiments might be made of the above invention, and as various changes might be made in the embodiments above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawings, is to be interpreted as illustrative only.

We claim:

1. In combination, means for clipping a helical coil wire, means for bending the clipped end of the coil wire, longitudinally inwardly at the outside of a convolution of the coil spaced inwardly of the clipped convolution, means for looping the inwardly longitudinally bent end of said coil, radially inwardly around said spaced convolution, and then longitudinally outwardly under said spaced convolution to form a loop.

2. The combination of claim 1, and means for closing said loop sufficiently to prevent wire passing through said loop from coming out of said loop.

3. The combination of claim 1, said means for bending the clipped end of the coil longitudinally inwardly, including means to move said clipped end of said wire radially outwardly to the outside of said inwardly spaced convolution.

4. The combination of claim 3, said means for bending the clipped end of said coil longitudinally inwardly including means to support said inwardly spaced convolution, while the looping means loops the coil radially inwardly around said spaced convolution and longitudinally outwardly at the inside of said spaced convolution.

5. The combination of claim 4, said means for bending the clipped end of said coil longitudinally inwardly, further including means to retain the portion of the coil being looped by said looping means, in a radial plane.

6. The combination of claim 5, and means for closing said loop.

7. The combination of claim 6, said means for closing said loop, comprising means on said means for bending said clipped end longitudinally inwardly, against which the looping means presses a portion of the loop.

8. The combination of claim 1, said means for clipping said coil wire comprising a clipping lever, said means for bending said clipped end comprising a bending lever, said levers being mounted for rotation on a common axis, a control lever, mounted for rotation, cam means on said clipping lever and bending lever, and means on the control lever to actuate said clipping and bending levers successively.

9. The combination of claim 8, said looping means comprising a looping cam member, means to mount said looping cam member for rotation about an axis parallel to said common axis.

10. The combination of claim 9, said looping cam member including a disc having a radial slot, and means to position said coil with said inwardly spaced convolution passing through said slot, and disposed at the axis of said looping cam member.

11. The combination of claim 1, and means to hold said clipped convolution and said inwardly spaced convolution during the clipping, bending and looping operations by said clipping, bending and looping means.

12. The combination of claim 11, said looping cam member including a looping lug offset from the axis of said member and projecting from said disc and adapted to engage a portion of said clipped and longitudinally inwardly bent wire end, and to loop a portion thereof around said inwardly spaced convolution as said looping cam member is rotated about its axis.

13. The combination of claim 12, said looping lug being undercut at one edge to keep the wire engaged thereby against the outer side of said disc.

14. The combination of claim 13, said disc being connected to said shank by a connecting portion disposed at the periphery of the disc.

15. In combination, a shaft, a first member fixed to said shaft for rotation therewith, a second member rotatable relative to said shaft, means to attach said second member to said first member in angularly adjusted positions relative thereto, an actuator member mounted on said second member, a mechanism mounted for rotation about said shaft, said mechanism including means to clip a convolution of a helical coil wire, means to bend the clipped end of said wire longitudinally inwardly at the outside of a convolution spaced inwardly from said clipped convolution, and means to loop the longitudinally inwardly bent end radially inwardly and around and inside of said inwardly spaced convolution, and longitudinally outwardly inside of said spaced convolution, a control lever on said mechanism, stop means to limit movement of said mechanism in one direction, said actuator member having means to move said control lever, and means controlled by said control lever for actuating said clipping means, binding means and looping means.

16. The combination of claim 15, spring means to move said control lever back to normal position upon said actuator member being moved in an opposite direction.

17. The combination of claim 16, and means on said mechanism adapted to be engaged by said actuator member upon moving said actuator member in said opposite direction to move said mechanism in said opposite direction.

18. The combination of claim 15, and spring means interposed between said actuator member and said second member to cushion movement of said actuator member relative to said second member.

19. The combination of claim 1, said clipping means comprising a clipping lever mounted for rotation about an axis perpendicular to the axis of said coil wire and remote from said coil wire when said coil wire is in position to be clipped, and said bending means comprising a bending lever rotatable about an axis perpendicular to the axis of said coil in its said position, and remote from said axis of said coil, and said looping means comprising a looping cam member rotatable about an axis perpendicular to the axis of said coil and having a radi- 21. The combination of claim 1, and means to move said clipping means, said bending means and said looping means back to normal inoperative position, after the clipping, bending and looping operations by said clipping, bending and looping means, respectively.

22. The combination of claim 1, a member to support said clipping means, bending means and looping means, means to mount said member for movement, and means to move said member.

Claims

6. The combination of claim 5, and means for closing said loop.

19. The combination of claim 1, said clipping means comprising a clipping lever mounted for rotation about an axis perpendicular to the axis of said coil wire and remote from said coil wire when said coil wire is in position to be clipped, and said bending means comprising a bending lever rotatable about an axis perpendicular to the axis of said coil in its said position, and remote from said axis of said coil, and said looping means comprising a looping cam member rotatable about an axis perpendicular to the axis of said coil and having a radial slot through which said inwardly spaced convolution passes, with the portion of said inwardly spaced convolution being disposed at the axis of revolution of said looping cam member, said looping cam member having means to permit said looping cam member to rotate about said portion of said inwardly spaced convolution which passes through said radial slot.

20. The combination of claim 19, and said looping cam member having means spaced radially from the axis of said looping cam member, to bend a portion of said longitudinally inwardly bent wire about said inwardly spaced convolution.

21. The combination of claim 1, and means to move said clipping means, said bending means and said looping means back to normal inoperative position, after the clipping, bending and looping operations by said clipping, bending and looping means, respectively.