US2469544A

US2469544A - Tying machine for elongated packages

Info

Publication number: US2469544A
Application number: US581483A
Authority: US
Inventors: Benjamin H Bunn
Original assignee: Bunn Co B
Current assignee: BH Bunn Co
Priority date: 1941-12-10
Filing date: 1945-03-07
Publication date: 1949-05-10
Anticipated expiration: 1966-05-10

Description

May 10, 1949. B. H. B UNN ,4

TYING MACHINE FOR ELONGATED PACKAGES I Original Filed Dec. 10, 1941 '5 Sheets-Sheet 1 6* Q 44' F'9 Z n 96 Q 1/6 AM 93 12 i 724 I 113 /8 #9 I Wm 6 J -13: w I20 v 1 J /08 1/6 7 I06 175 Z8 11 40 29- i f fiegw zazm May 10,1949. BUNN 2,469,544

TYING MACHINE FOR ELONGATED PACKAGES Original Filed Dec. 10, 1941 5 Sheets-Sheet 2 I 119 2/ f .5 4 //6' I I, I 1 K {g 44 7 as 7 a 4 a era 'amfi. zzrz7z 26 J May '10, 1949. B. H. BUNN 2,469,544

' "IYINGV MACHINE FOR ELONGATED PACKAGES Original Filed Dec. lO, 1941 5 ShetS-Sheet 3 B. H. BU'NN TYING MACHINE FOR ELONGATED PACKAGES View 10, 1949.

Original Filed Dec. 10, 1941 5 Sheets-Sheet 4 May 10, 194 9. B, BUNN 2,469,544

TYING MACHINE FOR ELONGATED PACKAGES Original Filed Dec. 10,1941 s SheetS- -Sheet 5 Patented May 10, "1949 TYING MACHINE FOR ELONGATED PACKAGES Benjamin H. Bunn, Chicago, Ill., assignor to B. H. Bunn Company, Chicago, Ill., a corporation of Illinois Original application December 10, 1941, Serial No. 422,317. Divided and this application March 7, 1945, Serial No. 581,483

12 Claims. 1

My invention relates to tying machines for elongated or rod-like packages or bundles, and contemplates more especially tying machines for applying one or more wraps of twine circumferentially about rod-like packages or bundles at spaced intervals therealong and knotting or otherwise securing together the ends of the twine at each wrap interval.

The present application is a division of my prior application, Ser. No. 422,317 filed December 10, 1941, for tying machines for elongated packages and relates particularly to the modified forms of the invention not covered by patent which issued on said application No. 2,372,763, dated April 3, 1945.

Package tying machines in general use, as exemplified by the tying machines disclosed in my patents, Nos. 1,606,290 of November 9, 1926, and 1,994,453 of March 19, 1935, permit of wrapping such rod-like packages or bundles only near their respective ends, because of the necessarily rather limited distance between the plane of the twine wrapping and the mounting hub of the twine wrapping crank arm. Greatly to increase the length of the horizontal eccentric portion of the twine wrapping crank arm, to increase the distance between the crank hub and the wrapping plane, would leave the twine laying end of the twine arm too far from its support and would give rise to an objectionable whipping action of the twine arm and an inaccuracy of the location of the payout end of the twine arm in its normal position. It would leave the so-called island portion of the work table (the portion of the table which has to be suspended to permit the twine arm to pass around it) too distant from its support.

Not only has it not been feasible to employ the twine crank arm type of tying machine to such wrapping of rod-like packages, even with simple modifications thereof, but it has not been feasible to employ the so-called needle arm type of tying machine. This is partly because the needle arm type of machine is inherently limited to a single wrap of twine, and partly because the entire rodlike package or bundle would have to be shifted transversely in and out for each wrapping and knotting.

Among the objects and features of my invention are the following:

The twine is wrapped about a rod-like package without the objection of supporting the twine wrapping arm wholly from its distant hub or mounting.

A plurality of wraps of twine can be applied about the package at any station therealong and the ends of the twine knotted together.

In some forms of my invention, the rod-like package or bundle to be tied may be of indefinite or unlimited length, or in fact continuous (as, for example, where the tying machine may directly receive a continuous length of the material to be wrapped as it comes from the machine which makes the material, such as a bundle of continuous strips coming from a battery of extruson molding presses); or, rod-like packages of finite length may be fed end-to-end to the tying machine. Whether the article or bundle to be wrapped be of limited or unlimited length, it may be passed continuously into, through, and out from the machine as a more or less continuous operation.

Any desired uniform or non-uniform spacing may be effected between the wrappings.

Long loose pieces of material may be bundled quickly and easily by virtue of the compacting action of the tying machine. Or the bundle may, in whole or in part, be given its desired form by the support for the component pieces.

Even where the twine is supplied to the machine axially and at a great distance from the wrapping plane, the twine arm is not supported and rotated from a correspondingly distant mounting and drive, but instead is supported from a mounting, and rotated by a drive applied, close to the payout end of the twine arm. And also what might (by comparison with the type of tying machine disclosed in my above-mentioned patents) be termed the island portion of the work support is supported quite immediate the twine passing gap between it and the stationary portion of the support.

For the easy longitudinal progress of the work through the machine, it is, in some forms of my invention, supported by deeply grooved rollers which minimize friction and yet help define a bundle of strips to an approximation of the desired contour of the tied bundle.

Among the articles which may be tied, or tied into bundles, by the tying machines of my invention are strands of such synthetic materials as nylon, strips, rods or tubes of various materials, tubular insulation of the type known to the radio industry as spaghetti, sausage, or elongated rolls of sheet material, and the like. The tying machines of my invention may also be employed for tying rod-like packages which have first been wrapped in paper or other sheet material. Another example of the use of my machine is the tying together at intervals of a long bundle of mop yarns, later to be cut at intervals into the yarn units for mop heads.

These and other features and advantages of my invention are set forth in the following description, and are illustrated in the accompanying drawings.

In the drawings, of which there are sheets:

Fig. 1 is a front elevational View of a package tying machine embodying my invention;

Fig. 2 is a plan view of the machine illustrated in Fig. 1 taken on the plane of the line 22 of Fig. 1, a portion of the base and of a twine holder being broken away;

Fig. 3 is an enlarged vertical section taken on the plane of the line 3-3 of Fig. 1, the lower portion of the frame being broken away;

Fig. 4 is a similar vertical section taken on the plane of the line i l of Fig. 1;

Fig. 5 is a similar vertical section taken on the offset planes of the broken line 5-5 of Fig. 1;

Fig. 6 is a further enlarged fragmentary rear view looking in the direction of the arrows 6--6 of Fig. 2; and

Fig. 7 is a further enlarged fragmentary ver tical section taken on the offset planes of the broken line 'l-7 of Fig. 4.

Referring to the drawings in detail, it may be pointed out that in the main the knotting mechanism and the operating facilities therefor are substantially the same as those illustrated in my Patents Nos. 1,606,290 and 1,994,453. The present specification therefore, for the purposes of brevity and simplicity, is written with the assumption that the reader is familiar with the general principles of operation of my tying machines as set forth in the above-mentioned patents.

The machine illustrated in Figs. 1 to 7 inclusive is mounted on a main frame 2! which comprises cast iron

end frame members

22 and 23, which are connected by front and

rear plates

24 and 25. A pair of rods 20 connect the lower ends of the end frames, being secured thereto by nuts 2'! threaded onto the ends of the rods. The end frame members are formed with laterally extending support portions 28 which have at their outer ends, supporting feet 29.

A motor 352 is mounted on a motor support plate 33 secured to the frame, the motor having speed reducing driving connection as by means of a V-belt, with a pulley 34 which is journaled on a shaft 35. The shaft 35 is journaled in the frame, and the pulley 34 is adapted to be connected, as by means of a clutch 35, to the shaft 35.

The clutch is operated, by a clutch lever in a manner similar to that of my Patent 1,606,290, by means of a slip link 3! connected to one arm of a ball crank lever 38 pivoted on the frame. The other arm of the ball crank lever is connected, by means of a link 38, to a foot treadle 40. A coil spring 43 holds the link 39 and its connected foot treadle normally in raised position, thereby moving the slip link 3'! into the path of a cam, not illustrated, on the main cam block a l to move the clutch to inoperative or released condition. Depressing the foot treadle withdraws the slip link 31 and thereby actuates the clutch, which remains engaged for one cor--- plete cycle of operation, being restored to inoperative condition by the action of the cam on the main cam block 44 in a manner similar to that described in my Patent No. 1,606,290.

The cam block 04 is keyed to a shaft 45 journaled in the frame, this cam shaft also having secured thereto the gear 46 which is in constant 4 mesh with a drive pinion 41, keyed to the clutch shaft.

The gear it it will be noted has a mutilated or interrupted portion 58 along one side only thereof, the other side of the gear, with which the pinion 41 is in mesh, being uniformly toothed throughout its periphery. The mutilated side of the gear engages a wrapping head drive gear 49, which has a rather narrow face and is operatively disconnected from the gear at, when the interrupted part of that gear is opposite it. A flange 50 projects laterally from the mutilated side of the gear as for a distance which may be slightly less than the arcuate length of the mutilated or interrupted portion of the gear 40. This flange engages a pair of rollers 53 and 5 1 (see Fig. 4) journaled on studs 55 and Eli which project laterally from the gear 49. The rollers ride on the flange 58 during the period when the wrapping head drive gear 49 is over the interrupted portion of the gear it to prevent the wrapping head drive gear from turning at such times.

A chain drive sprocket 5'! is journaled oo-. axially with the gear 39 and is secured thereto to rotate therewith. A drive chain 58 passes around the sprocket 57 and around a chain driven sprocket 55 mounted on a hub which is journaled on the clutch shaft 35. A second, larger chain sprocket 63 also is secured to the hub he and a drive chain t l passes around this larger sprocket and around a chain sprocket ring es carried by a wrapping head iiti.

The proportions of the chain sprockets 51 and E 53; and 63 and the sprocket ring til are such, in reiation to the wrapping ring drive gear, and, in turn its ratio to the toothed portion of the mutilated side of the gear as which it engages; as to rotate the wrapping head 66 a predetermined number of complete revolutions, determined by the number of wraps of twine desired around a package, for each complete rotation of the mutilated gear lt, constituting one complete cycle of the machine.

The construction of the wrapping head is illustrated in Figs. 1, 4 and 7. An annular mounting ring 6'? is secured to the upper portion of the end frame member 22 as by socket-head cap screws 68. The transverse sectional shape of the mounting ring is shown in 7, and comprises an inwardly projecting roller support flange 69, a step :0 to provide a roller housing, and a second step 73 to receive a clamp ring it.

A plurality of roller support studs 15, for example four or six, are secured in openings in the flange 5-9 as by riveting, these studs each being adapted to receive. with telescoping fit, the inner race or hub member of a ball bearing roller 16. The periphery of the outer roller race or rim member of therollers projects slightly inwardly beyond the inner edge of the flange 69 to have rolling, supporting contact with a twine arm support ring :7.

The ring Tl has an outwardly extending flange m which is adapted to en age the roller support flange 69 to prevent endwise movement of the ring, and serves also as a spacer for the sprocket ring 55, which is mounted against the outer face of this flange '10.

The clamp ring it is mounted on the opposite face of the wrapping head ring from the sprocket ring, and this entire rotating assembly, including the sprocket ring 55, the twine arm support ring H, and the clamp ring M, is secured together by through-bolts 19 which pass through aligned holes in all of these component mem- 5 bers and may be threaded into the clamp ring, or secured with nuts 80 as desired.

'Atwine arm 83 (see Figs. 4 and '7) has an arcuate base portion mounted beside the inner opening of the clamp ring I4 and is secured thereto as by cap screws 84. A twine opening 85 in the twine arm base adjacent to the twine arm is in register with aligned openings through the clamp ring, the twine arm support ring, and the sprocket ring 65, to provide a passage for the twine through the wrapping head. The twine arm is bent at approximately 90 at BB and at 81, and is provided with a twine guide 88 (see Fig. 7). The outer or free end of the twine arm has an axial hole 89 therein, with a lateral opening 90 through which the twine passes during a wrapping operation.

Atwine slack take-up is mounted on the opposite side of the wrapping head from the twine arm, and comprises an arm 93 of light strap metal, pivoted in a bracket 94 mounted on the sprocket ring 95, and having a twine opening 95in the outer or free end thereof. A light coil spring 96 is held in tension between the arm and a pin 9'! secured to the sprocket ring to urge the slack take-up outwardly as illustrated in Fig. 6. The slack take-up is somewhat similar to that disclosed in my Patents Nos. 1,606,290 and 1,994,453 referred to previously herein, as is alsoa twine tensioning device 98 which comprises a relatively non-flexible member (see Figs. 1 and 5) having apair of spaced openings therein, the twine being adapted to be threaded through these openings with a reach of the twine between the openings engaged by a lightly tensioned leaf spring 99 to control, with adjusted force, the withdrawing tension of the twine. The amount of pressure of the spring at its point of contact with the twine is controlled by a thumb nut I bearing on the spring. The twine tensioning member is secured, as by machine screws I03, to the base of a twine supply support member I04, which in turn is secured to the sprocket ring 65 as by cap screws I05.

The support I04 has mounted thereon a twine container I06 which is adapted to receive and support a supply of twine I0I. A twine guide I08 is adjustably mounted in a hole in the base of the support I04, and is secured in adjusted position therein by a thumb screw I09. The twine guide is bent at right angles to overlie the container, its outer end being formed into a guide ring I I0 which may be positioned over the twine container to guide the twine from the supply to the tensioner when it passes through the slack take-up member to the twine arm.

A package support bracket II3, which may be of cast iron, is bolted to the end frame 22 and comprises an upwardly and outwardly slanting portion II4, see Figs. 1 and 5, and an upper portion I I which is curved. back toward the machine and extends horizontally through the wrapping head 66. The top surface of this upper portion is flat and has secured thereto a plurality of rectangular U-shaped brackets H6. A package support channel member 1, also of rectangular U-shape, is of a size to fit snugly within the brackets II6 to be supported and reinforced thereby. The package support channel II! and the reinforcing brackets IIB may be secured to the supporting bracket II 3 by machine screws II8, see Fig. 2.

The package support channel extends to just short of the transverse plane defined by the end of the'twine arm 83 during a wrapping operation.

The sides of the channel member Ill are flared outward slightly as at I I9 and I20 to prevent their catching on a package during a sliding movement of the package between successive wrapping operations.

The top surface of the horizontal bottom web' of the package support channel H1 is at the same level as the top surface of a package support table I23 which overlies the knotting mechanism indicated generally by the numeral I24. The package support table I23 is supported from the frame 2| at its inner end by angle brackets I25 and at its outer end by brackets I 26.

An angle bracket I2! is mounted on top of the table I23 with a vertically extending leg thereof located substantially in longitudinal alignment with a side of the package support channel II'I. This bracket serves as a guide, and as a support for a package against lateral displacement under the action of the twine during a wrapping operation.

The operation of the machine illustrated in Figs. 1 to 7 inclusive is as follows:

Assuming that a supply of twine is in position in the twine container I06, the twine is led through the twine guide ring H0 and thence through the tensioning device 98, opening 95 in the slack take-up 93 through the twine guide 88, through the opening 89 in the end of the twine arm 83, and is inserted between the spring held parts of the twine catcher I28 to be retained thereby.

The motor 30 is energized as by means of a switch I29, and operates continuously during the time the machine is in condition of use, and through the V-pulley 34 causes the clutch shaft 35 also to rotate continuously.

A package I33, outlined in dot and dash lines in Figs. 2 and 3, is placed in the channel package support II! to extend onto the table I23. the package or bundle, preferably being held by the operator against the rear wall of the channel support and also against the vertical leg of the angle bracket I21,

Upon depressing the treadle 40 the link 39 and bell crank lever 39 act to withdraw the slip link 31 from between the clutch operating lever 4i and the cam on the cam block 44, thereby causing the clutch to engage the shaft 35 and rotate it through one complete revolution of the cam block, or in other words until the clutch release cam on the cam block again engages the slip link to move the clutch lever 4| to releasing position.

As above pointed out, the number of revolutions made by the twine arm during a wrapping cycle is determined by the resultant or combined ratios of (1) the wrapping head drive gear 49 to the unmutilated portion of the gear 46, (2) the ratios of the sprockets 51 and 59, and (3) the sprocket 63 and the sprocket ring 65. In the machine illustrated, while the exact ratios of these gears and sprockets have not been drawn to exact dimensions, the resultant ratio may be considered as three to one, so that for each complete cycle, as determined by one complete revolution of the cam block, the wrapping head makes three complete revolutions.

Thus upon each depression of the treadle by the operator the the twine catcher I28.

Upon the completion of each twine tying operation the. package may be moved slidably lengthwise of the channel package support, and successive wraps placed about the package at desired intervals, as at I34 and I35, Fig. 2.

While I have illustrated a preferred embodiment of my invention, many modifications may be made without departing from the spirit of the invention, and I do not wish to be limited to the precise details of construction set forth, but desire to avail myself of all changes within the scope of the appended claims.

I claim:

1. A machine for wrapping with twine elongated packages, said machine comprising a frame, a Wrapping ring support on said frame, a plurality of rollers carried by said support, a wrapping ring mounted to rotate on said rollers, means mounted on one side of the wrapping ring for storing a supply of twine, a twine arm projecting in the axial direction from the other side of the wrapping ring and. adapted to carry a reach of twine from the twine supply around a package in the machine, a package support carried by the frame and projecting laterally beyond the wrapping ring, the package support projecting through the ring and terminating adjacent a plane defined by the reach of the twine arm during a rotation of the wrapping ring, a second package support carried by said frame at substantially the same level as said firstmentioned package support, said package supports spaced to permit the passage of the twine during the wrapping operation, and tension. control means mounted between the twine supply means and the end of the twine arm to control the tension of twine during a package Wrapping operation.

2. A machine for wrapping with twine elongated packages, comprising a supporting frame, a. wrapping ring rotatably mounted on said frame, means carried by said wrapping ring for storing a supply of twine to rotate with the wrapping ring, a twine arm projecting axially from said wrapping ring and adapted to carry a reach of twine from the supply in said storing means, around a package carried by the machine, a package support carried by the frame and extending through the wrapping ring and terminating adjacent to the plane defined by the reach of twine carried by the twine arm, a second package support carried by said frame and having a supporting surface at substantially the same level as said first mentioned package support, said package supports being spaced to per mit the passage of the twine during the wrapping operation, means for driving said wrapping ring in. a cyclic operation through a predetermined number of turns whereby the twine is wrapped about a package, tying means for producing a knot in'said twine about said package, said first package support comprising a bracket carried by a lower part of said frame and extending outwardly and upwardly, and thereafter inwardly adjacent the axis of the wrapping ring, said bracket supporting a package guide, and said package guide comprising a metal member having a horizontal package-supporting surface and a. pair of upwardly projecting guiding flanges.

3. A machine for wrapping with twine elongated packages, comprising a supporting frame, a wrapping ring rotatably mounted on said frame, means'carried by said wrapping ring for storing a supply of twine to rotate with the wrapping ring, a twine arm projecting axially from said wrapping ring and adapted to carry a. reach of twine from the sup-ply in said storing means around a package carried by the machine, a

package support carried by the frame and extending through the Wrapping ring and terminating adjacent to the plane defined by the reach of twine carried by the twine arm, means. for driving said wrapping ring in a cyclic operation through a predetermined number of turns whereby the twine is wrapped about a package, tying means for producing a knot in said twine about said package, and a second package support carried by said frame and having a supporting surface at substantially the same level as said firstmentioned package support, said package supports being spaced to permit the passage of the twine during the wrapping operation.

4. A machine for wrapping with twine elongated packages, comprising a supporting frame, a wrapping ring rotatably mounted on said frame, means carried by said wrapping ring for storing a supply of twine to rotate with the wrapping.

ring, a twine arm projecting axially from said wrapping ring and adapted to carry a reach of twine from the supply in said storing means, around a package carried by the machine, a package support carried by the frame andextending through the wrapping ring and terminating adjacent to the plane defined by the reach of twine carried by the twine arm, a second package support carried by said frame and having a supporting surface at substantially the same level as said first mentioned package support, means for driving said wrapping ring in a cyclic opera.- tion through a predetermined number of turns whereby the twine is wrapped about a package, said package supports being' spaced to permit the passage of the twine during the wrapping operation, tying means for producing a knot in said twine about said package, and twine tensioning means carried by said wrapping ring and imposing a predetermined friction. against the withdrawal of the twine from said storage means.

5. A machine for wrapping with .twine elongated packages, comprising a supportingv frame, a wrapping ring rotatably mounted on said frame, means carried by said wrapping ring for. storing a supply of twine to rotate withthe wrapping ring, a twine arm projecting axially from said wrapping ring and adapted to carry a reach of twine from the supply in said storing means, around a package carried by the machine, a. package support carried by the frame and extending through the wrapping ring and terminating adjacent to the plane definedby the reach of twine carried by the twine arm, a second package support carried by said frame and having a supporting surface at substantially the same level as said first mentioned package support, means for driving said wrapping ring in a cyclic operation through a predetermined numberv of turns whereby the twine is wrapped about. a package, said package supports. being spaced to permit the passage of the twine during the wrapping operation, tying means for producing a knot in said twine .aboutsaidpackage, twine tensioning means carried by. said wrapping ring and imposing a predetermined friction against the withdrawal of the twine from said storage means, and twine slack take-up means engaging said twine between the storage means and the end of said twine arm for taking up the slack during a wrapping operation.

6. A machine for wrapping withtwine elongated packages, said machine comprising a frame,

a plurality of rollers mounted on. said frame tov 9 define a circle, a wrapping head having a circular peripheral track mounted radially within the rollers to be rotatably supported thereby, said frame having a pair of circular fianges mounted to restrict the axial movement of the wrapping ring on said rollers, means for storing a supply of twine mounted on one side of said wrapping. ring, a twine arm carried by the other side of said wrapping ring and extending axially therefrom, said twine arm being adapted to carry a reach of twine from the twine supply around a package in the machine upon rotation of the wrapping ring, a package support carried by said frame and extending into said wrapping ring to a point adjacent to the plane defined by the reach of twine during a wrapping operation to support a package duringsaid wrapping operation, said wrapping ring also carrying a slack take-up device and a tensioning device whereby the twine is held in a taut condition during the wrapping operation, and a second package support carried by said frame and having a supporting surface at substantially the same level as said first mentioned package support, said package supports being spaced to permit the passage of the twine during the wrapping operation.

'7. A machine for wrapping with twine elongated packages, said machine comprising a frame, a plurality of rollers mounted on said frame to define a circle, a wrapping head having a circular peripheral track mounted radially within the rollers to be rotatably supported thereby, said frame having a pair of circular flanges mounted to restrict the axial movement of the wrapping ring on said rollers, means for storing a supply of twine mounted on one side of said wrapping ring, a twine arm carried by the other side of said wrapping ring and extending axially therefrom, said twine arm being adapted to carry a reach of twine from the twine supply around a package in the machine upon rotation of the wrapping ring, a package support carried by said frame and extending into said wrapping ring to a point adjacent to the plane defined by the reach of twine during a wrapping operation to support a package during said wrapping operation, and a second package support carried by said frame and having a supporting surface at substantially the same level as said first mentioned package support, said package supports being spaced to tion during the wrapping operation, aid tensioning clevice comprising a resilient metal member engaging the twine and imposing a predetermined friction on the withdrawal of the twine from the means for storing twine.

8. A machine for wrapping with twine elongated packages, said machine comprising a frame, a plurality of rollers mounted on said frame to define a circle, a wrapping head having a circular peripheral track mounted radially within the rollers to be rotatably supported thereby, said frame having a pair of circular flanges mounted to restrict the axial movement of the wrapping ring on said rollers, means for storing a supply of twine mounted on one side of said wrapping ring, a twine arm carried by the other side of said wrapping ring and extending axially therefrom, said twine arm being adapted to carry a reach of twine from the twine supply around a package in the machine upon rotation of the wrapping ring, a package support carried by said frame and extending into said wrapping ring to a point adjacent to the plane defined by the reach of twine during a wrapping operation to support a package during said wrapping operation, and a second package support carried by said frame having a, supporting surface at substantiaily the same level as the first mentioned package support, a bracket on said supporting surface of said second package support having a vertically extending leg, said bracket serving as a guide and as a support for a package against lateral displacement under the action of the twine during the wrapping operation, said package supports being spaced to permit the passage of the twine during the wrapping operation, said wrapping ring also carrying a slack take-up device and a tensioning device whereby the twine is held in a taut condition during the wrapping operation, said tensioning device comprising a resilient metal member engaging the twine and imposing a predetermined friction on the withdrawal of the twine from the means for storing twine, and threaded means for adjusting the tension of said resilient means engaging said twine.

9. A machine for wrapping with twine elongated packages, said machine comprising a frame, a plurality of rollers mounted on said frame to define a circle, a wrapping head having a circular peripheral track mounted radially within the rollers to be rotatably supported thereby, said frame having a pair of circular flanges mounted to restrict the axial movement of the wrapping ring on said rollers, means for storing a supply of twine mounted on one side of said wrapping ring, a twine arm carried by the other side of said wrapping ring and extending axially therefrom, said twine arm being adapted to carry a reach of twine from the twine supply around a package in the machine upon rotation of the wrapping ring, a package support carried by said frame and extending into said wrapping ring to a point adjacent to the plane defined by the reach of twine during a wrapping operation to support a package during said wrapping operation, said package support being carried by said frame by means of a bracket secured to the lower part of said frame, said bracket extending diagonally outward and upward and being curved inwardly at its upper end, said package support comprising a metal member having a plane supporting surface carried by said bracket and having a pair of guide flanges extending upwardly from said supporting surface at each side, defining a trough, and a second package support carried by said frame and having a supporting surface at substantially the same level as said first mentioned package support plane supporting surface, said package supports being spaced to permit passage of the twine during the wrapping operation, said second mentioned package support plane supporting surface having a bracket thereon, said bracket having a vertically extending leg, said leg being in substantially longitudinal alignment with one guide flange of said first mentioned package support, said bracket serving as a guide and as a support for a package against lateral displacement under the action of the twine during the wrapping operation.

10-. A machine for wrapping with twine elongated packages, comprising a supporting frame, a wrapping ring rotatably mounted on said frame, means carried by said wrapping ring for storing a supply of twine to rotate with the wrapping ring, a twine arm projecting axially from said wrapping ring and adapted to carry a reach of twine from the supply in said storage means around a package carriedby the machine, a first package support carried by the frame and extending through'the wrapping ring and terminating adjacent to the plane defined by the reach of twine carried by the twine arm, means for driving said wrapping ring in a cyclic operation through a predetermined number of turns whereby the twine is wrapped about a package, tying means for producing a knot in said twine about said package, a second package support carried by said frame and having a supporting surface at substantially the same level as said first mentioned package support, said package supports being spaced to permit the passage of the twine during the Wrapping operation, a bracket mounted on said supporting surface of said second package support, said bracket having a vertically extending leg, and said bracket serving as a guide and as a support for a package against lateral displacement under-the action of the twine during awrapping operation.

11." Amachine for wrapping with twine elongated packages, comprising a supporting frame,

a wrapping ring rotatably mounted on said frame,

means carried by said wrapping ring for storing a' supply of twine to rotate with the wrapping ring, a twine arm projecting'axially from said wrapping .ring and adapted to carry a reach of twine from the supply in said storage means around a package carried by the machine, a first package support carried by the frame and extending through the wrapping ring and terminating adjacent to the plane defined by the reach of twine carried by the twine arm, said package support having a bracket-nonrotatably attached to the supporting frame, a metal member having aplane-supporting surface carried by said bracket and having a pair of guide flanges extending upwardly from saidsupporting surface at each side forming a trough, means for nonrotatably securing said metal member to said bracket, means for driving said wrapping ring in a cyclic operation through a predetermined number of turns whereby the twine is wrapped about a package, tying means for producing a knot in said twine about said package, a second package support'carriedby said frame and having a supporting surface at substantially the same level as the plane-supporting surface-ofsaid metal member, saidpackage supports being spaced to permit the'passage of the twine during the wrapping operation, a bracket mounted on said supporting surface of said second package support, said bracket having a vertically extending leg located substantially in longitudinal alignment with one guide flange of said metal member, and said bracket serving as a guide and as a support for a package against lateral displacement under the action of the twine during a wrapping operation. 12. A machine for wrapping with twine elongated packages, comprising a supporting frame, a wrapping ring rotatably mounted on said frame, means carried by said wrapping ring for storing a supply of twine to rotate with the wrapping ring, a twine arm projecting axially from said wrapping ring and adapted to carry a reach of twine from the supply in said storage means" around a package carried by the machine, a package supportbracket carried by the frame, said bracketsupporting a package guide, means for nonrotatably securing said guide to said bracket, said "guide extending-through the wrapping ring and terminating adjacent to the plane defined by the reach of twine carried by the twine arm, said package guide comprising a metal member having a horizontal package support surface and a: pair of upwardly projecting guiding flanges, said guiding flanges being curved outwardly at the ends which engage the leading end of a package moving into the guide, said package guide being open at both ends so that bundles of unlimited length may be wrapped and passed continuously into, through and out of the machine as a more or less continuous operation, means for driving said wrapping ring in a cyclic operation through a predetermined number of turns whereby the twine is wrapped about a package, tying means for producing a knot in said twine about said package, a second package guide carried by said frame and having a supporting surface at substantially the same level as the horizontal package-supporting surface of said metal member of said first mentioned package guide, saidpackage guides being spaced to permit the passage of the twine during the wrapping operation, a bracket mounted on saidsupporting surfaceof said second package guide, said bracket having avertically extending leg, and said bracket serving as a guide and as a support for a package against lateral displacement under the action of the twine during a wrapping operation.

BENJAMIN H. BUNN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,606,290 Bunn Nov. 9, 1926 2,372,763 Bunn Apr. 3, 1945