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Publication numberUS2637509 A
Publication typeGrant
Publication dateMay 5, 1953
Filing dateMar 17, 1945
Priority dateMar 17, 1945
Publication numberUS 2637509 A, US 2637509A, US-A-2637509, US2637509 A, US2637509A
InventorsGodfrey Stanius
Original AssigneeAcme Steel Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Coil unreeler
US 2637509 A
Abstract  available in
Images(5)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

y 1953 G. STANIUS 2,63 7,509

COIL UNREELER Filed March 17. 1945 5 Sheets-Sheet l G. STANIUS May 5, 1953 COIL UNREELER 5 Sheets-Sheet 2 Filed March 17, 1945 G. STANIUS May 5, 1953 COIL UNREELER 5 Sheets-Sheet 3 Filed March 17, 1945 fnvenzfor: Godfm y Siarzzus y 1953 G. STANIUS 2,637,509

0011. UNREELER Filed March 17, 1945 5 Sheets-Sheet 4 [raven/02"; Godfre Sianius -%W, 24 ,MM

fl orrz /s. I

y 5, 1953 G. STANIUS 2,637,509

COIL UNREELER Filed March 17. 1945 5 Sheets-Sheet 5 [120672 r Godfrgy Sid/nus Patented May 5, 1953 COIL UN REELER Godfrey Stanius, Chicago, 111., assignor to Acme Steel Company, Chicago, 111., a corporation of Illinois Application March 17, 1945, Serial No. 583,185

15 Claims. 1

This invention relates to unreeling apparatus for coils of strip material and the like and its purpose is to provide a coil unreeler having an improved self-actuating brake for preventing the rotation of the coil when the wound material is not being intentionally withdrawn from the coil. Although intended primarily for unreeling coils of metal strapping and the like, the invention may be employed for controlling the unwinding of round wire, paper strips and'various other materials which are commonly wound in coils in preparation for use.

It is the usual practice when using steel strapping and other binding material to place a coil of the strapping or the like upon a reel mounted for rotation upon a reel stand and the reel is rotated intermittently by pulling on the outer end of the strapping as the strapping is withdrawn for use in binding boxes, packages or for other uses. Owing to the momentum of the coil and the reel by which it is carried, the reel commonly continues to rotate ior a substantial interval after the desired length of strapping has been withdrawn by the pull of the operator, with the result that an additional undesired quantity of strapping is unwound from the coil and falls to the floor, causing inconvenience in the next strapping operation or necessitating a rewinding of the loose slack material at the conclusion of the binding operation. This over-running of the reel and its coil is often very annoying and results in much loss of time during the unreeling of a coil of material. Braking devices which have heretofore been provided for controlling the withdrawal of strapping from a reel have been unsatisfactory chiefly because they have been auxiliary attachments which had to be removed when putting a new coil on the reel and because they functioned only when the strapping was withdrawn in one direction.

The principal object of the present invention is to overcome the above-mentioned difliculties, and others, by providing a coil unreeler comprising a reel stand having means mounted thereon and coacting with a part of a removable reel carried by the stand for automatically stopping the rotation of the reel when the pull on the strapping or other coiled material is relieved. Another object is to provide a reel brake permanently mounted on a reel stand for engagement with a reel carried by the stand and adapted to be automatically energized by the reduction of the tension in the portion of coiled material being withdrawn, whereby the rotation of the reel is promptly arrested. A further object is to pro,

vide a reel stand provided with an improved brake arranged to coact with a rotatable reel having a removable part which permits a coil of strapping or the like to be placed on the reel without disturbing the brake. Still another object is to provide a reel stand for supporting a rotatable coil supporting reel having a hub portion or brake drum arranged to be detachably engaged by an improved brake mounted on the stand and normally set to prevent rotation of the reel, the brake being released by a pull on the free end of the coiled material and being automatically reset to prevent the rotation of the reel when the pull is relieved. Another object is to provide a reel brake of the type referred to which is actuated through the angular movement of a counterweighted brake lever engaged by the strip material or the like being withdrawn 1" rom the reel, the brake lever being adjustable to occupy a plurality of different positions. A further object of the invention is to provide a reel having automatic brake mechanism which is operative to control the unwinding of the material coiled on the reel by pulls exerted on said material in a plurality of different directions, it being sometimes desirable to withdraw the strapping from different sides of a reel and in opposite directions depending upon whether or not the material bears letters or other insignia on one side and upon the method of strapping employed. Other objects relate to various features of construction and arrangement which will appear more fully hereinafter.

. The nature of the invention will be understood from the following specification taken with the accompanying drawings in which one embodiment is illustrated. In the drawings,

Figure 1 shows a front elevation of a reel stand carrying unreeling apparatus embodying the features of the present invention;

Fig. 2 shows a side elevation of the reel stand apparatus illustrated in Fig. 1;

Fig. 3 shows an enlarged front elevation of the reel illustrated in Fig. 1 and its associated brake mechanism, the brake arm being shown in either of two positions which it may occupy depending upon whether the coil of material is drawn oil from the bottom or the top of the coil, portions of the reel and associated parts being broken away;

Fig. 4 shows an enlarged top plan view of the winding reel illustrated in Figs. 1, 2 and 3;

Fig. 5 shows a horizontal section taken on the line 5-5 of Fig. 3;

Fig. 6 shows an enlarged detailed section taken" on the line 6-6 of Fig. 5, with portions of the reel and other parts broken away;

Fig. 7 shows a detailed sectional View taken on the line 1-! of Fig. 6

Fig. 8 shows a partial sectional view taken on the line 88 of Fig. 6;

Fig, 9 shows a perspective view of the brake actuating ring which forms a part of the brake mechanism illustrated in the preceding figures of the drawings;

Fig. 10 shows a perspective view of the brake band and a portion of the brake arm which forms a part of the brake mechanism and which is adapted to be turned about the brake ring shown in Fig. 9 when adjusting the brake mechanism from one position to another for permitting a change in the direction in which the strapping or the like is withdrawn from the reel;

Fig. 11 shows a side elevation of the coil brake spring which serves as the braking medium and also controls the normal operation of the brake mechanism; and

Fig. 12 is a perspective view of the bearing block about which parts of the brake mechanism and a portion of the hub of the reel are mounted.

As illustrated in the drawings, the invention is embodied in a reel carried by a reel stand l which is constructed in the form of a truck having a frame made up of tubular side frame members I6 which extend upwardly and which converge slightly toward each other in the upward direction, their ends being bent transversely to form parallel handles [6 The lower ends of these side frame members l6 are welded or otherwise secured to outer side plates ll and inner side plates l8 which extend downwardly therefrom in parallel relationship. A truck wheel I9 is rotatably mounted upon each pair of plates l1 and I8 by means of a pivot pin or bolt 20. The two plates l1 and 18 of each pair are also welded to other tubular frame members 2| which are of irregular form, each member 2| extending over the adjacent truck wheel I9 and having a downwardly inclined portion 2i at its forward end which is adapted to rest upon the fioor or other support 22 so that the stand [5 may be supported in a stable position during the operation of withdrawing coiled material from the reel carried thereby. The side plates H are connected adjacent the lower ends of the upright frame members l6 by a transverse frame member 23 which has its ends welded or otherwise secured to the plates l1 and the upper portions of the members [6 are connected below the handle I6 by a metal container 24 which is welded or otherwise secured to the members l6 and which is open on its upper side to receive strap stretching and sealing tools or other devices which are employed by the workmen in the operation of applying the flexible steel strapping or other material to boxes, packages, or other objects to be bound.

The side frame members It are also connected, between the frame member 23 and the container 24, by a pair of spaced horizontal tubular frame members 25 which have their ends welded or otherwise secured to the members l6 and which have secured between them by welding or the like another frame member in the form of a vertical plate 26, of substantial thickness, which is located midway between the side frame members l6. This plate 26 is provided with a centrally located circular aperture 26 which is fitted by the reduced end portion 21 of a cylindrical bearing block 21. This bearing block is detachably secured to the plate 26 by a series of cap screws 28 and a portion 21 of the bearing block extends in to the aperture 26 for additional support. The bearing block 21 is provided with a central aperture 21* having secured therein the reduced end portion 30 of a spindle 30 which provides a support for the reel 33 upon which a coil 34 of steel strapping or other binding material or the like is supported. In the embodiment illustrated, a single bearing block 21 is employed together with a single spindle 30 and one reel 33 but, if desired, an additional bearing block may be mounted on the other side of the plate 26 and another spindle 30 may be extended in the opposite direction to support another winding reel 33 as illustrated by dotted lines in Fig. 2.

As shown particularly in Figs. 4, 5, 6 and 7, the reel 33 comprises a hub 35 which is journaled upon the spindle 30 and which is provided at its inner end with a cup-shaped housing 35 arranged to bear against the end face of the bearing block 21 and extending partially over this bearing block to form an annular chamber 36. The reel 33 comprises two similar radially extending portions 3! and 31 which are apertured at their centers to engage the hub 35 and which converge toward each other outwardly from the hub to contact with each other along annular surfaces 31. Each of these parts is provided outwardly of the surfaces 3! with a cylindrical portion 31* extending parallel to the axis of the reel and each part 3! and 31* then extends radially outward as shown at 31", thus forming an annular channel of rectangular cross section which receives the coil 34. The inner part of the inner reel section 31 bears against the housing portion 35 of the hub and has a ring 38 seated against the outer face thereof, the ring and the section 31 being secured to the hub portion 35 by means of rivets 39. With the hub 35 and the section 37 of the reel positioned on the spindle 30, the coil 34 is placed in position around the annular portion 31 of the section 31 whereupon the section 31 is put in place over the hub of the reel with the surfaces 31 in contact. A nut 43, having operating handles 40*, is thenapplied to the threaded outer end of the hub 35 to hold the two sections 31 and 37 of the reel in assembled relationship with respect to each other. The reel is retained in position on the spindle 30 by a collar 4| which fits over the reduced extremity 30 of the spindle and which is secured in position by a set screw 42 engaging an annular groove 36. The external transverse dimension of the collar 4! is less than the outside diameter of the spindle 30 so that the nut 43 and the section 3? of the reel may be removed from the hub 35 without disturbing the collar 4|. The reel 33 is thus mounted to rotate freely on the spindle 30 to permit the strapping or other material wound in the coil 34 to be withdrawn by pulling on the outer end portion of this strapping and thus causing the rotation of the reel and of the coil which is held in a relatively fixed position with respect to the coil.

In order to control the rotation of the reel 33 and to prevent its rotation when an intentional pull is not being exerted upon the strapping or other material contained in the coil 34, braking mechanism is provided including a brake actuating ring 44 which fits over the cylindrical bearing block 21 and occupies the space between the inner end of the hub portion 35 of the reel and the plate 26 upon which the bearing block is mounted. This brake ring 44 has the form shown particularly in Fig. 9 and is provided on its inner side with a notch 44 adapted to be engaged by the horizontally directed extremity 45 of a coil brake spring 45, shown particularly in Fig. 11, which is located in the chamber 36 within the hub portion 35* of the reel surrounding the outer portion of the bearing block 21. The end 45' of the spring 45, opposite the end 45, is directed radially inward and engages a recess 21 formed in the bearing block 21, as shown particularly in Figs. 6 and 12. The spring 45 is thus interlocked with the hub portion 21 and with the brake ring 44 and, in its normal extended condition, it bears frictionally upon the inner annular surface of the hub portion 35* of the reel to resist the rotation of the reel. When the brake ring 44 is rotated on the hub portion 21 to effect the contraction of the spring 45, the hub portion 35 of the reel is released so that the reel 33 may then be freely rotated to permit the withdrawal of the strapping or other material contained in the coil 34.

The rotation of the brake ring 44 on the bearing block 2! is controlled automatically by the strapping or other material being withdrawn from the coil through the agency of a brake band or collar 46 having formed therewith or secured thereto a radially extending brake lever 46 provided at its outer end with a transversely extending guide plate or bearing block 46 which is arranged to overhang the reel 33 when the reel is in position on the spindle 35. The guide plate 4t is curved in cross section in a plane extending transversely to the axis of the spindle 30 and it is provided on its convex side with a lug 46 having an aperture 45 throu h which the strap 34, withdrawn from the coil 34, is adapted to extend as the strap is passed around and in contact with the convex side of the guide plate.

The brake band or collar 46 is interlocked with the brake ring 44 by means of a locking pin 48 which is mounted to reciprocate in a radial bore formed in the brake band 46 and in the radial extension 45 formed thereon, as shown in Fig. 6. The bore in which the lockin pin 48 is mounted extends only partially throu h the part 46 of the brake band but it communicates with a bore 46 of smaller diameter which is slidably en-aged by the reduced stem portion 48 of the locking pin. A coil spring 49 normally moves the locking pin inwardly toward the brake ring 44 and the stem 48 is provided at its outer end with a ring 54 which may be en aged for the purpose of withdrawing the pin 43 from its engagement with one or the other of the notches 44 and 44 which are formed in the outer peripheral surface of the brake ring 44, as shown particularly in Pi s. 4 and 9. In order to permit the convenient operation of the locking pin 48, this pin and the extension 46 of the brake band in which it is mounted are directed at an angle to the adjacent supporting plate 26, as illustrated in Fi 7.

When the lockin'r pin 48 en a es the notch 44 in the brake actuating rim 44, as shown in Fir. 6, the brake lever 4i; extends upwardly and toward the left, as illustrated by full lines in Figs. 1, 3, 4 and 6, and the convex side of the bearing plate 46 is then directed upwardly so that the strap 34 drawn from the under side of the coil 34, passes through the aperture 45 in the luv 46' and thence over the convex side of the plate 45 as it is drawn ch in the direction indicated by the arrow 56 in Fi"s. 1 and 3. When the operator first takes hold o strap 34 and exerts a pull thereon n the direction of the arrow 50, the pressure .of the strap on the plate 46 causes the brake lever 46 to move downwardly and thus rotate the brake band 46 about the axis of the spindle 34. Since the locking pin 48 then engages the shoulder of the notch 44, as shown in Fig. 6, the rotary movement of the brake band 46 is imparted to the brake actuating ring 44, with the result that the brake spring 45 is contracted and moved out of engagement with the inner annular surface of the chamber 36, thus releasing the hub 'so that the reel 33 is free to rotate as the strap 34 is withdrawn from the coil. The direction of the winding of the helix of the spring must be such that the angular movement of the arm of the brake lever 46*, caused by the withdrawal of the strap, will contract the spring. The angular movement of the brake lever 46 which effects this release of the reel by the contraction of the spring 45 is indicated by the movement of the brake lever 46 from position shown by full lines in 3 to the position shown by dotted lines at the left of that figure. The brake lever and the plate 46 continue to occupy the positions shown by dotted lines at the left of Fig. 3 until the tiesired quantity of strap 34 has been withdrawn from the coil. As soon as the tension in the strap 34 being withdrawn from the coil is released; the spring 45 automatically expands and moves the brake lever 46a again to the upper position shown by full lines in Fig. 3, thus restoring the braking action of the spring upon the inner annular surface of the hub of the reel so that the rotation of the reel is immediately arrested and there is no cverrunning of the reel and no discharge of strapping therefrom after the desired quantity of strapping has been withdrawn.

If it be desired to withdraw the strapping from the upper side of the coil, which may be desirable in scme strapping operations, as heretofore explained, the locking pin 48 is moved out of en-'- gagement with the notch 44*, which is open on one side as shown in Fig. 6, by revolving the brake band 46 on the brake actuating ring 44 until it occupies a position shown by dotted lines at the right of Figs. 1 and 3, whereupon the locking pin 48 is released so that it is moved by its spring 49 into engagement with the other external notch 44 of the brake ring 44. Then, when the strapping is drawn off from the upper side of the coil, as shown at 34 in Figs. 1 and 3, the convex side of the guide plate or bearing plate 46 is directed downwardly and the strap, still engaging the aperture 46 in the guide lug 46, exerts a pressure upon the convex side of the guide plate when an outward pull is exerted upon the strap so that when the operator begins to draw the strap from the coil, the tension in the strap will move the plate 4'? slightly upward from the position shown by dotted lines at the right of Figs. '1 and 3, thus turning the brake band 46 on the brake ring 44, in the manner previously described, whereupon the spring 45 again releases the hub portion of the reel 33 and permits the reel to rotate freely during the uncoiling of a desired length of strapping. At the conclusion of the withdrawal operation, the release of the tension in the strap again permits the spring 45 to swing the brake lever 4E5 downwardly and the expanded spring again acts as a friction brake to arrest the rotation of the reel.

In order to counterbalance the weight of the arm 46* and the guide plate 46 the brake band 46 i preferably provided with another arm 46 carrying a counterweight 46 -at its outer end. The counterweight is located on the opposite side of a vertical plane from the axis of the reel from the position occupied by the arm 46 and the guide plate 46 so that it counterbalances the tendency which the parts Mi and 46 have to affect the rotation of the brake band 46, thereby equalizing the braking action of the expanding spring 45 whether the strapping is drawn off from the under side of the coil or from the upper side thereof. It will be apparent that, without the counterweight, the weight of the part 46 and 46 would oppose the braking action of the spring when drawing off the strapping from the under side of the coil as shown at the left of Fig. 1 while assisting the braking action when drawing oil from the upper side of the coil as shown by dotted lines at the right of Fig. 1. The counterweight also serves to sensitize the action of the plate 46* so that a slight pull on the strapping will be sufficient to release the reel and permit unreeling.

Although one form of the invention has been shown and described by way of illustration, it will be understood that it may be constructed in various other embodiments which come within the scope of the appended claims.

. I claim:

1. A coil unreeler comprising, a rotatable reel adapted to support a coil of strapping or the like, a brake comprising an expansible and contractible helical spring adapted to engage a part of the reel for controlling the rotation of said reel, and means actuated by a portion of the strapping being withdrawn from said coil for controlling the expansion and contraction of said spring.

2. A coil unreeler comprising, a rotatable reel adapted to support a coil of strapping or the like,

a brake comprising an expansible and contractible spring controlled by relatively rotatable members which are concentric therewith, said brake acting normally to resist rotation of said reel, and means actuated by the tension in a portion of the strapping being withdrawn from said coil for effecting relative rotation of said members and thereby operating said spring to release said reel.

3. A coil unreeler corrprising, a rotatable reel adapted to support a coil of strapping or the like, a brake comprising an expansible and contractible spring controlled by relatively rotatable members which are concentric therewith, said brake acting normally to resist rotation of said reel, means actuated by the tension in a portion of the strapping being withdrawn from said coil for efiecting relative rotation of said members and thereby operating said Spring to release said reel, and means for securing said relatively rotatable members in difierent normal relative positions.

4. A coil unreeler comprising, a rotatable reel adapted to support a coil of strapping or the like, a brake comprising an expansible and contractible spring controlled by relatively rotatable members, said brake acting normally to resist rotation of said reel by frictional contact with a part thereof, an arm connected to one of said members and extending radially of the axis of said reel, said arm having a part engaged by a portion of said strapping extending from said coil, whereby a pull on said strapping actuates said arm to effect relative rotation of said members and operate said spring to thereby. release said reel.

5. A coil unreeler comprising, a rotatable reel adapted to support a coil of strapping or the like, a brake comprising an expansible and contractible spring controlled by relatively rotatable members, said brake acting normally to resist rotation of said reel, an arm connected to one of said members and extending radially of the axis of said reel, said arm having a part engaged by a portion of said strapping extending from said coil, whereby a pull on said strapping actuates said arm to effect relative rotation of said members and operate said spring to thereby release said reel, and means to permit the normal position of said arm to be changed to permit it to be actuated by strapping drawn from different sides of said coil.

6. A coil unreeler comprising, a stand, a spindle carried by said stand, a reel rotatably mounted mounted on said spindle and adapted to support a coil of strapping or the like, said reel having a hub portion provided with an inner annular braking surface, a coil spring normally expanded into engagement with said braking surface, one end of said coil spring being fixed, a rotatable member secured to the other end of said spring, and means actuated by a pull on the strapping extending from said coil for rotating said member and thereby contacting said spring.

7. A coil unreeler comprising, a stand, a spindle carried by said stand, a reel rotatably mounted on said spindle and adapted to support a coil of strapping or the like, said reel having a hub portion provided with an inner annular braking surface, a coil spring normally expanded into engagement with said braking surface, one end of said coil spring being fixed, a rotatable member secured to the other end of said spring, an arm mounted for pivotal movement about the axis of said spindle and having a part adapted to be engaged by a portion of the strapping being withdrawn from said coil, and means for connecting said arm with said rotatable member whereby a pull on said strapping is adapted to efiect the pivotal movement of said arm and thereby rotate said member to contract said spring.

8. A coil unreeler comprising, a stand, a spindle carried by said stand, a reel rotatably mounted on said spindle and adapted to support a coil of strapping or the like, said reel having a hub portion provided with an inner annular braking surface, a coil spring normally expanded into engagement with said braking surface, one end of said coil spring being fixed, a rotatable member secured to the other end of said spring, a brake lever mounted for pivotal movement about the axis of said spindle and having a part adapted to be engaged by a portion of said strapping being withdrawn from said coil, and means for securing said brake lever to said rotatable member in any one of a plurality of relative positions of said lever and said member, a pull on said strapping being withdrawn from said coil being adapted to effect pivotal movement of said brake lever whereby said rotatable member is actuated to contract said spring.

9. A coil unreeler comprising, a stand, a cylindrical bearing block carried by said stand, a spindle projecting from the end of said bearing block, a reel rotatably mounted on said spindle and adapted to support a coil of strapping or the like, said reel having a hub portion extending around a part of said bearing block in spaced relation to said bearing block, a brake actuating ring rotatably mounted on said bearing block adjacent said hub portion, a helical coil spring mounted around said bearing block within said hub portion with one end thereof secured to said bearing block and the other end secured to said brake actuating ring, and a brake lever connected to said brake actuating ring and mounted for rotation about the axis of said bearing block, said brake lever having an outer part adapted to be engaged by a portion of said strapping being withdrawn from said reel.

10. A coil unreeler comprising, a stand, a cylindrical bearing block carried by said stand, a spindle projecting from the end of said bearing block, a reel rotatably mounted on said spindle and adapted to support a coil of strapping or the like, said reel having a hub portion extending around a part of said bearing block in spaced relation to said bearing block, a brake actuating ring rotatably mounted on said bearing block adjacent said hub portion, a coil spring mounted around said bearing block within said hub portion with one end thereof secured to said bearing block and the other end secured to said brake ring, a brake band extending around said brake ring and having a brake lever extending radially therefrom, a means for detachably securing said brake band to said brake ring, and a guide plate mounted at the outer end of said brake lever for engagement by a portion of said strapping being withdrawn from said reel.

11. A coil unreeler comprising, a stand, a cylindrical bearing block carried by said stand, a spindle projecting from the end of said bearing block, a reel rotatably mounted on said spindle and adapted to support a coil of strapping or the like, said reel having a hub portion extending around a part of said bearing block in spaced relation to said bearing block, a brake actuating ring rotatably mounted on said bearing block adjacent said hub portion, a coil spring mounted around said bearing block within said hub portion with one end thereof secured to said bearing block and the other end secured to said brake ring, a brake band rotatably mounted on said brake ring, said brake ring having angularly displaced notches in the outer side thereof, means carried by said brake band for detachably engaging either of said notches, a brake lever extending radially from said brake band, and guiding means carried at the outer end of said brake lever and adapted to be engaged by a portion of strapping being withdrawn from said reel.

12. A coil unreeler comprising, a rotatable reel adapted to support a coil of strapping or the like, a brake comprising an expansible and contractible spring controlled by relatively rotatable members, said brake acting normally to resist rotation of said reel, an arm connected to one of said members and extending radially of the axis of said reel, said arm having a part engaged by a portion of said strapping extending from said coil, whereby a pull on said strapping actuates said arm to effect relative rotation of said members and operate said spring to thereby release said reel, and means for counterbalancing the weight of said arm.

13. A coil unreeler comprising, a rotatable reel adapted to support a coil of strapping or the like, a brake comprising an expansible and contractible spring controlled by relatively rotatable members, said brake acting normally to resist rotation of said reel, an arm connected to one of said members and extending radially of the axis of said reel, said arm having a part engaged by a portion of said strapping extending from said coil, whereby a pull on said strapping actuates said arm to eifect relative rotation of said members and operate said spring to thereby release said reel, means for counterbalancing the weight of said arm, and means to secure said arm in diiferent normal positions to permit it to be actuated by strapping drawn from dilierent sides of said coil.

14. A coil unreeler comprising, a stand, a spindle carried by said stand, a reel rotatably mounted on said spindle and adapted to support a coil of strapping or the like, said reel having a hub portion provided with an inner annular braking surface, a coil spring normally expanded into engagement with said braking surface, one end of said coil spring being fixed, a rotatable member secured to the other end of said spring, an arm mounted for pivotal movement about the axis of said spindle and having a part adapted to be engaged by a, portion of the strapping being withdrawn from said coil, means for connecting said arm with said rotatable member whereby a pull on said strapping is adapted to efiect the pivotal movement of said arm and thereby rotate said member to contract said spring, said rotatable member and said arm being returned to their normal positions by said spring when the pull on said strapping is released, and a counterweight movable with said arm.

15. A coil unreeler comprising, a stand, a cylindrical bearing block carried by said stand, a spindle projecting from the end of said bearing block, a reel rotatably mounted on said spindle and adapted to support a coil of strapping or the like, said ree1 having a hub portion extending around a part of said bearing block in spaced relation to said bearing block, a brake ring rotat-.

ably mounted on said bearing block adjacent said hub portion, a coil spring mounted around said bearing block within said hub portion with one end thereof secured to said bearing block and the other end secured to said brake ring, a brake lever mounted for rotation about the axis of said bearing block and having an outer part adapted to be engaged by a portion of said strapping being withdrawn from said reel, and a weight mounted to counterbalance said lever.

GODFREY STANIUS.

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2777647 *Apr 28, 1953Jan 15, 1957Acme Steel CoCoil unreeler
US3107878 *Jun 16, 1961Oct 22, 1963Wong Hans BMultiple reel carrier
US6540170 *Jul 23, 2001Apr 1, 2003Illinois Tool Works Inc.Multiple coil dispenser
US6637694 *Jul 6, 2001Oct 28, 2003Strapack CorporationBrake structure of band reel in packing machine
US7287717Feb 4, 2005Oct 30, 2007Illinois Tool Works, Inc.Strap dispenser with start assist
EP1174379A2 *Jul 6, 2001Jan 23, 2002Strapack CorporationBrake structure of a band reel
Classifications
U.S. Classification242/421.8, 242/156, 242/559, 242/597.4, 242/422.4
International ClassificationB65H59/04, B65H49/32
Cooperative ClassificationB65H59/04, B65H2701/373, B65H49/32
European ClassificationB65H49/32, B65H59/04