US2860462A

US2860462A - Machine for wrapping bundles or stacks of newspapers

Info

Publication number: US2860462A
Application number: US527735A
Authority: US
Inventors: Sykes Thomas Robert
Original assignee: Toronto Star Ltd
Current assignee: Toronto Star Ltd
Priority date: 1955-08-11
Filing date: 1955-08-11
Publication date: 1958-11-18
Anticipated expiration: 1975-11-18

Description

Nov. 18, 1958 T. R. SYKES 2,850,462

V MACHINE FOR WRAPPING BUNDLES OR STACKS OF NEWSPAPERS Filed Aug. 11, 1955 7 Sheets-Sheet 1 FIG. I

MOT/ON lnvzntor THOMAS ROBERT SY/(ES Att'ys Nov. 18, 1958 T. R. sYKEs 2,850,462

MACHINE FOR WRAPPING BUNDLES OR STACKS OF NEWSPAPERS Filed Aug. 11, 1955 '7 Sheets-Sheet 2 FIG. 2

iii iiii i i THOMAS ROBERT sme's Nov. 18, 1958 T; RLSYKES 2,860,462

MACHINE FOR WRAPPING BUNDLES OR STACKS OF NEWSPAPERS Filed Aug. 11, 1955 7 Sheets-Sheet s M v Q l 8 U) V) "0 k l 2\ Q o THOMAS ROBERT SY/(ES W W a /W A Nov. 18, 1958 T. R. SYKES 2,860,462

MACHINE FOR WRAPPING BUNDLES OR STACKS OF NEWSPAPERS Filed Aug. ll, 1955 7 Sheets-Sheet 4 5 I II 4 3 DIRECT/0N OF MOVEMENT C B A amide FIG. 5

flnvcntor Z moms ROBE/P7 smss By: W Q ZW Attys Nov. 18, 1958 T. R. sYKEs 2,850,462

MACHINE FOR WRAPPING BUNDLES OR STACKS OF NEWSPAPERS Filed Aug. 11, 1955 '7 Sheets-Sheet 5 Inventor THOMAS ROBE/PT SY/(ES Att ys Y Nbv. 1958 T. R. SYKES 2,

MACHINE FOR WRAPPING BUNDLES OR STACKS OF NEWSPAPERS Filed Aug. 11, 1955 7 SheetsSheet 6 inventor THOMAS ROBERT SY/(ES By: wwfw Att" ys Nov. 18,

Filed Aug.

1958 T. R. SYKES 2,860,462

MACHINE FOR WRAPPING BUNDLES OR STACKS OF NEWSPAPERS ll, 1955 7 Sheets-Sheet 7 u. Mom? at u A U a 1| N I X x AULWW L l a J Lo lnvzntor AM ys United States Patent ()fiice 2,860,462 Patented Nov. 18, 1958 MACHINE FOR WRAPPIN G BUNDLES OR STACKS F NEWSPAPERS Thomas Robert Sykes, Toronto, Ontario, Canada, assignor to The Toronto Star Limited, Toronto, Ontario, Cauada, a corporation Application August 11, 1955, Serial No. 527,735

15 Claims. (Cl. 53-66) This invention relates to bundle wrapping machines, particularly machines for wrapping bundles or stacks of newspapers.

The object of the invention is to provide means for applying strips or lengths of wrapping paper to the underside of a bundle or stack of newspapers preparatory to a subsequent wrapping-up operation.

According to this invention bundles to be wrapped are carried by a conveyor. A web of paper is fed from beneath the conveyor to a position above the upper surface of the conveyor and in front of the bundle. This web is fed with the bundle as it travels over the conveyor and is severed after the paper has travelled a predetermined distance along the conveyor whereby a length of wrapping paper is provided beneath the bundle and having free ends at each end of the bundle adapted to be turned up and wrapped around the bundle by a subseveyor for severing the web after a predetermined stripor length of paper has been fed beneath the bundle.

A still further object of the invention is to provide control means for first feeding the web of paper to the conveyor beneath the bundle and subsequently severing the web after the desired length of paper had been fed beneath the bundle.

Finally, it is an object of this invention to provide means for quickly and easily mounting a roll of wrapping paper in position for feeding to the conveyor and applying braking torque thereto.

The above and other objects are achieved by the constructions and combinations hereafter particularly described and illustrated in the accompanying specifications and drawings and claimed in the claims appended thereto.

In the accompanying drawings:

Figure 1 is a top plan view of the bundle wrapping machine;

Figure 2 is a side elevation; V

Figure 3 is a view of the discharge end of the machine partly in section with some parts omitted for clarity;

Figure 4 is a diagrammatic plan view showing the chain drives for the machine;

Figure 5 is a side elevation of Figure 4;

Figure 6 is a detail on an enlarged scale of the web' feeding and severing mechanism in feeding position;

Figure 7 is 'a side elevation on an enlarged scale of the paper feeding and severing mechanism in cutting or severing position; I

Figure 8 is a top perspective view on an enlarged scale of the web feeding and cutting mechanism; and

Figure 9 is a schematic view of the control'operating airand electrical circuit.

In the drawings corresponding remarks refer to corresponding parts in the various figures.

The device comprises a frame 1 supporting three conveyor sections A, B, and C. Sections A and C are provided with roller flight conveyors 2 and 2 continuously driven from left to right. enter conveyor section A from the left, either delivered by another conveyor or manually placed thereon. Section B is located between sections A and C and contains the wrapper feeding and severing mechanism hereafter described.

Flight conveyor 2 comprises a plurality of rollers rotatably mounted at each end on endless chains which pass around sprockets at each end of the conveyor. Flight conveyor 2 is driven by a motor or other suitable source of power. The shaft of one of the flight conveyor sprockets extends beyond the frame 1. Secured to the outer end of this shaft is sprocket 5. Flight conveyor 2 is constructed similarly to flight conveyor 2 and secured to the outer end of one of its shafts is sprocket 4. See Figures 4 and 5. Roller chain 3 passes over sprockets 4 and 5. Operation of flight conveyor 2 causes sprocket 5 to rotate thus turning roller chain 3 and rotating sprocket 4. Rotation of sprocket 4 causes flight conveyor 2 to be driven in synchronism with flight conveyor 2.

Section B is made up of four driven

rollers

6, 7, 8 and 9.

Rollers

6, 7 and 9 are driven by chain 10 which drives

sprockets

11, 12 and 13 secured to shafts of

rollers

6, 7 and 9. Roller 8 is driven from chain 3 which is driven by flight conveyor 2 and drives flight conveyor 2*". Chain 3 rotates sprocket 14 which is secured to a shaft which passes through and is journalled in frame 1.

Within the frame another sprocket 15 is secured to the shaft. sprocket 15 through the medium of chain 17. Sprocket 16 rotates roller 8. The sprocket sizes and roller diameters are so selected that the surface speed of the rollers of conveyor section B progressively increases.

A web of paper 19 is fed from roller paper 20 or 21 as shown in Figure 2 over

idler roll

22 or 22 through

guides

23 and 24 and then around driven conveyor roller 8. The

guides

23 and 24 comprise a plurality of spaced resilient curved strips. Guides 23 are located adjacent roller 8. Guides 24 are slightly spaced therefrom and curved at their upper ends so as to direct the paper in the direction of travel of the conveyor. The lower ends of the

guides

23 and 24 are outwardly directed to permit insertion of the end of the web between the guides for threading the paper ready for the initial operation.

The operation of the feeding and severing mechanism is more particularly shown in

enlarged views

6, 7 and 8.

The following means is provided for feeding the web of wrapping paper. Roller 25 is journalled on a pair of arms 26 of shaft 26. Arm 27 is secured to and extends from shaft 26 and is pivoted to the end of the piston 28 of an air cylinder 28. Actuation of the piston in an upward direction moves arm 27 which turns shaft 26, causing arms 26 to move roller 25 against the driven conveyor roller 8 squeezing the paper web 19 between the two rollers and by virtue of friction of paper against the roller 8 causes the paper web to feed upward. When the piston of cylinder 28 is retracted, springs 27 withdraws the roller 25 from the roller 8 and the paper no longer feeds. The roller 25 thus acts as a pressure mem her for pressing the web of wrapping paper against the feed roll 8 to cause the latter to feed paper from below the plane or surface of the conveyor 2 and along said surface beneath a stack 01' bundle of newspapers.

Rotatably mounted on shaft 26 and projecting therefrom in the opposite direction to arms 26 is a pair of spaced

fingers

29 and 29 Spring 2.9 on shaft 26 shown Untied bundles of newspapers Sprocket 16 on the shaft of roller 8 is rotated by 3 in Figure 8 causes finger 29 to move against a fixed block 50, pressing the paper web against this block and effectively preventing the paper from slipping back during the cutting operation hereafter described.

In operation the bundle or stack of newspapers is carried by section A of the flight conveyor from left to right in Figure l of the drawing till the forward. portion of the bundle contacts switch arm 30 of controlswitch CS1 which extends above the conveyor in the path' of the bundle. as hereafter described but it is generally located at'the end of section A and just in front of section B. The

switch arm 30 is caused to swing from the position shown in full lines in Figure l to the position shown in dotted lines in Figure l as the bundle progresses along the conveyor. Operation of the switch CS1 makes an electrical circuit and closes arelay preparing a circuit for other switches which will be actuated as the bundle advances further. At this point the free end of the web 19 of wrapping paper is lying over the roll 8 with its free or severed edge just beyond or to the right of the roller, but it is not being fed.

As the bundle advances its forward edge engages the upper section of the web of wrapping paper and at approximately the same time contacts switch arm 31 of control switch CS2. Switch arm 31 is pivoted at one side of the conveyor as illustrated in Figure l similarly to switch arm 30 and when contacted by the bundle will be moved from the position shown in full lines to the position shown in dotted lines.

Switch CS2 electrically, through a three-way solenoid valve illustrated in Figure 9 and hereafter described in detail, allows air to enter the cylinder 28 and forces the piston upward, forcing roller 25 in contact with roller 8 causing'the webof wrapping paper to feed. The web now feeds at the same'speed that the bundle is moving forward and results in wrapping paper moving forward under the bundle. The amount of web projecting ahead of the bundle is controlled by the point at which the bundle engages switch arm 31 and actuates the switch CS2. The bundle and wrapping paper move forward to gether until the back end of the bundle passes beyond switch arm 30 allowing the switch CS1 to return to its original position. The location of switch arm 30 controls the length o f web projecting behind the bundle.

It is obvious that mechanical means could be provided for measuring the length of wrapping paper to be fed to each paper, and that a single switch operated by the paper could be substituted for the switches CS1 and CS2. Such single switch would merely start the web feeding mechanism. Mechanical means would operate the cutting mechanism after a predetermined number of revolutions of the paperfeed roll. This would not automatically vary the length of the web for different lengths of bundle, as is done by the electrical means herein described. I i

The following means is provided for severing the paper web after a predetermined length has beenfed beneath the bundle. Return movement of the switch3il cornplctes an electrical circuit which operates a three-way solenoidvalve and a three-way slave air valve, as here, after described, allowing air to enter behind thepiston pendently, of it through sprocket 16 as previously described.

Fixedly mounted on the shaft 36 and projecting from each end thereof are arms 37.. (See particularly Figure 8.) Secured to the ends of the arms 37, and extending The position of this switch CS1 can be adjusted between them is a ledger or cutter bar 38. Rotation of the pinion 35 causes the cutter bar to rotate clockwise from its normal position shown in Figures 6 and 8 to the position shown in Figure 7. As the cutter bar follows its circular path it rises from a position below and in front of the roller 8 to the plane or surface of the conveyor section B, above said plane and downwardly crossing said plane again and terminating below the plane and out oft'he p ath of the bundle which has just passed over that section of the conveyor. In the course of its downward movement it contacts the web of wrapping paper, which is being fed over the roller 8 and which extends beneath the bundle which has just passed over the roller, and forces the web down against the saw-toothed knifeedge 39 which is mounted in a frame and held in position by a clamping bar 41 and extends across the conveyor section B at least a distance equal to the width of the paper web to be cut. During this operation the portion of the paper web where the cut is to be made is held by the pressure roller 25 bearing against the roller 8; by the inertia of the bundle beneath which the free end of the web is still held; and by the friction of the rollers on the roller fiight conveyor. Forcing the paper over the saw-toothed knife-edge 39 results in a clean rapid cut. Satisfactory results may be obtained even if the knife-edge is dull and even if the ledger or cutter bar has a wide clearance from the knife.

Continued forward movement of the rack 34 carries the cutter bar past the severing position until rack 34 engages operating button 42 of switch 42 which opens an electrical relay operated by switch 42 and restores the air

valve controlling cylinders

32 and 28 to their original position. This results in the cutter bar returning to the position shown in Figures 6 and 8 and the paper feed roller or tension member 25 returning to the position shown in Figure 7 so that finger 29 will contact the paper and press it against block 50 and prevent the cut end of the web from slipping back out of the

guide members

23 and 24.

The bottom wrapper has now been applied to the bundle and the bundle passes over the conveyor section C to either the tying machine or another conveyor. The length of the tail end of the wrapper beyond the bundle is controlled by the position of the end of switch lever 30 with respect to the paper severing knife. Both the switches CS1 and CS2 are slidably mounted on the frame 1 and can be adjusted for the proper position of the switch levers. Also by means of cams in the switches the angle at which the

switch arms

30 and 31 are actuated can be adjusted. Thus the wrapper length at either end of the bundle is readily adjustable,

To provide a guard for the knife-edge 39 and thus prevent the operator from accidentally being cut by the knifeedge, a safety bar 43 as shown in Figures 6, 7 and 8 is provided. A sheet metal guard 43 shown in Figure 8 is attached to the front of the safety bar. The edge of this guard is located close to roller 8 to prevent the cut end of the paper web from following around the roller 8. The safety bar is supported by two

arms

44, 44 rotatably mounted on shaft 36. When the cutter bar is in normal position rearward extensions 37 of arms 37 contact the safety bar bringing it up above the knife 39, thus preventing accidental contact with the knife. When the cutter bar is actuated, the extensions 37 'rotate and release the safety bar. Spring 49 pulls the safety bar down to the position shown in Figure 7 allowing the cutter bar to force the paper past the knife. The return of the cutter bar brings the safety bar up into safety position.

To prevent a bundle on conveyor section A from passing onto conveyor section B before the previous bundle and wrapper has been cleared, a stop cylinder 45 is provided as shown in Figures 1, 2, 8 and 9. When the end of the switch arm 30 has cleared the bundle and the cutter bar cylinder is actuated, air is admitted .under the piston of cylinder 45 by a three-way solenoid valve forcing the piston rod 45 up between

rolls

6 and 7 and stopping the forward movement of any following bundles of paper. When the bundle in the machine is moved to a point that will allow another bundle to move onto conveyor section B and accept a wrapper and have the wrapper cut off, then the end of switch arm 31 just clears the end ofthe bundle allowing the switch to return to normal position. This breaks the circuit to the solenoid controlling air to cylinder 45 and a spring returns the stop rod to its normal position and allows the succeeding bundle to enter the machine. This feature is valuable and is necessary where the discharge from the roller flight conveyor may be blocked, such as when the machine is used as an automatic feeder. When there is no chance of the bundle, leaving the conveyor, being restrained this feature may be omitted.

In order to be sure that there is a positive drive pulling the bundle over the wrapper applying mechanism, a fixed brake shoe 51 under the top rollers of the roller flight conveyor C contacts these rollers. 'While these rollers travel with their operating chains, each roller individually rotates freely. The applicationof friction to the underside of these rollers as they are travelling causes them to rotate so that the top surface of the roller flight conveyor C will be rotating at twice the normal speed of the conveyor. The driven rolls and the wrapper applying mechanism as mentioned earlier run at progressively higher surface speeds and the final driven roll 9'runs at a speed slightly less than the top surface of the rollers of flight conveyor C when they contact the brake shoe. This results in a receiving conveyor C, the surface of which operates slightly faster than the fastest portion of conveyor section B, so that there is a constant pull on the bundle of paper and wrapper which smooths out any wrinkles that may form as the wrapper is being applied.

The finger 29 normally presses the paper against block 50 to prevent the end of the web of wrapping paper from slipping back after it has been cut and when it is not being fed as shown in Figure 7. In order to move the finger 29 out of contact with the block 50 in order to permit the web 19 to be manually threaded between the

guides

23 and 24 there is provided manually operated means comprising an operating arm 46 secured to a shaft 47 rotatably mounted on frame 1 and extending across the machine between finger 29 and finger 29 (see Figures 1, 6, 7, and 8). Secured to and projecting from shaft 47 is an arm 48 which, when the shaft 47 is rotated clockwise, will engage finger 29 and force finger 29 to swing away from the block 50 against the pressure of spring 29 This leaves a free path for the paper to be threaded up between guides 23 and 24 (Figures 2 and 8). Immediately the paper is fed up, the

shaft

47, 48 may be rotated anti-clockwise allowing the finger 29 to contact the paper and prevent the end of the web from slipping back.

Two rolls of wrapping'paper are provided so that if a roll is used up during normal operation, paper from the second roll can be threaded through in a very short time whilethe first roll is being replaced. These rolls are mounted on identical carriages side by side beneath the machine. Since the carriages are identical only the mounting for roll 21 wil be described. The rolls of paper are carried on shaft 52 mounted in slots on hearing blocks 53 which in turn are mounted in frame 54. This frame is mounted on an extendable drawer guide having, at the outer end, castors 55 which allow the carriage to be pulled out from beneath the machine for placing a new roll of paper and then returned to the operating position under the machine.

As shown in Figure 3, the carriage is locked in closed position by handle 56 having a locking cam 57 which engages finger 58 secured to frame 1. When in closed position theinner end of the roll 21 of wrapping paper will be held against brake block 59. This brake block is carried on arm piyotally. mounted at its upper end and ally constant.

Roller 22 is an idler roller to guide the web of paper when the roll of paper 20 is being used and roller 22' is a similar idler roller to guide the web of paper when the roll of paper 21 is being used. This is the only purpose these rolls serve.

Figure 10 shows diagrammatically the electrical and pneumatic systems with various parts of the machine denoted by symbols in order to give a clear description of the sequence of operation of the various parts.

The switch 62 is the general circuit switch which is closed when the mechanism is in operation. Other switches may be provided for stopping the machine in an emergency. I

Control switch CS1 has two positions, normal and conditioned. Control switch CS2 has two positions normally open and closed. Both are operated by contact of their

switch arms

30 and 31 with the bundle. Switch CS1 does not actuate anything until switch CS2 is closed.

The bundle first conditions CS1 then closes CS2 thus completing circuit through conditioned switch CS1. This (a) actuates normally closed air valve 65 to operate piston of air cylinder 28 of the paper feed means and (b) closes relay '63 through normally closed switch 42.

When thebundle clears switch CS1 switch CS1 returnsto normal. This (a) opens valve 66 to operate cylinder 45 and forces piston rod 45 up to act as a stop, and (12) makes circuit through previously closed relay 63 to close normally open valve 67 and open slave valve 68 to actuate piston 33 in cylinder 32 to operate the cutter by means of a rack 34 and pinion 35.

At the extreme end of its stroke rack 34 strikes and opens normally closed switch 42. This breaks the circuit to the operating coil of the closed relay 63, opening the relay, with the result that the solenoid air valve 65 operates (a) to exhaust air from cylinder 28 to permit its piston 28 to return to normal position and stop paper,

ly close-d switch CS1 to solenoid valve 66, and actuating' said valve to exhaust air in cylinder 43 to permit stop to drop.

It will be noted that the cutting mechanism will not operate unless both control switches CS1 and CS2 have been actuated by the bundle. This is a safety feature which prevents accidental operation of the cutter.

What I claim as my invention is:

1. In a bundle wrapping machine, a conveyor for bundles to be wrapped and means for feeding a web of.

wrapping paper to the conveyor, said means comprising a driven roller member, a pressure member spaced from the driven roller member, the web being adapted to pass between the driven roller member and the pressure member, means for causing the pressure member and the. driven roller member to come into contact to grip the web of paper between them whereby the roller will feed the web to the bundle conveyor, and means operated by one of the above said members for gripping the web to hold it in position between the said members when they are apart.

2. In a bundle wrapping'machine,a conveyor for bu dles'to be wrapped and means for feeding a web-of wrapping paper to the conveyor, said means comprising a driven roller, a pressure member spaced from the driven roller, the "web being adapted to pass between. the driven roller and the pressure member, means for moving the pres sure member to press the web of paper against the roller whereby the roller will feed the web to the bundle conveyor, and means for gripping the web to hold it in position between the driven roller and the pressure member comprising a fixed member and afinger operated by the pressure member to move into proximity with the fixed member to. press the web against the fixed member when the pressure member and the driven roller are apart.

3. In a bundle wrapping machine, a conveyor for bundles to be wrapped, and means for feeding a web of wrapping paper to the conveyor and holding it in position when it is not being fed, said means comprising a driven roller, a fixed member, a pivoted pressure memher, a gripping member, and means co-o-rdinated with the conveyor for pivoting the pressure member to press the web against the driven roller to feed it to the conveyor and for alternately pivoting the gripping member to press the web against the fixed member to hold it in position.

4. In a bundle wrapping machine as claimed in claim I, manually operable means for releasing the gripping means to permit initial threading of the web of paper between the pressure member and the roller.

5. In a bundle wrapping machine, a conveyor for the bundle, paper severing means comprising two severing members below the plane of the surface of conveyor, said members extending transversely of the conveyor and being spaced from one another longitudinally of the conveyor, means for feeding a web of wrapping paper to the conveyor from below the conveyor between the severing members, and means for moving at least one of the severing members from its position below the plane of the surface of the conveyor up above said surface and into proximity with the other severing member to cut the web between them and back to its initial position below the plane of the surface of the conveyor.

6. In a bundle wrapping machine a conveyor for the bundle to be wrapped, a cutting edge extending transversely of and below the plane of the surface of the conveyor, a cutter bar extending transversely of and below the plane of the surface of the conveyor and spaced from the cutting edge longitudinally of the conveyor, means for feeding a web of wrapping paper to the conveyor from below the conveyor between the cutting edge and the cutter bar, and means for moving the cutter bar from the position below the plane of the surface of the conveyor up above said surface and down into proximity with the cutting edge to shear the web between them and back to its initial position below the plane of the surface of the cutter bar.

7. In a bundle Wrapping machine, a conveyor for the bundle to be wrapped, a fixed cutting edge extending transversely of and below the plane of the surface of the conveyor, a safety bar normally extending adjacent the cutting edge to provide a guard for the cutting edge, a cutter bar extending transversely of and below the plane of the surface of the conveyor and spaced from the cutting edge longitudinally of the conveyor, means for feeding a web of wrapping paper to the conveyor from below the conveyor between the cutting edge and the cutter bar, means for moving the cutter bar from its position below the plane of the surface of the conveyor up above said surface and down into proximity with the cutting edge to shear the web between them and at the same time move the safety bar out of its edge guarding position and-back to their initial positions.

8. In a bundle wrapping machine, a conveyor for the bundle, means for feeding a webof wrapping paper from below the conveyor to and along the upper surface of the conveyor, a cutting member extending across the machine below the plane of the upper surface of the conveyor, and means for swinging the cutting member in an are from its position below said plane up above said plane and down below said plane to intersect the path of the wrapping paper and back to its initial position below the plane of the surface of the conveyor.

9. In a bundle wrapping machine, a conveyor for the bundle to be wrapped, paper severing means comprising a transverse fixed cutting edge extending transversely of and below the plane of the surface of the conveyor, a cutter bar extending transversely of the plane of the surface-of the conveyor and supported on pivoted arms below the surface of the conveyor and adapted to reciprocate in an are above the plane of the surface of the conveyor and down into proximity with the cutting edge, means for feeding a web of wrapping paper to the conveyor from belowthe conveyor between the cutting edge and the cutter bar, and means for reciprocating the cutter bar to shear the web against the cutting edge.

10. In a bundle wrapping machine, a conveyor for the bundle to be wrapped, means for feeding a web of wrapping paper to the conveyor, a first selector switch adjacent the conveyor adapted to be conditioned by a bundle as it passes along the conveyor, a second such switch spaced from the first longitudinally 'of the conveyor, means actuated by the conditioning of both switches by the bundle to feed the web of paper to the conveyor beneath the bundle and means actuated when first switch is 'no' longer conditioned by the bundle to sever the web of paper- 11. A bundle wrapping machine as claimed in claim 10 in which the spacing of the switches is relatively adjustable to vary the length of the severed web which projects in front of or behind the bundle.

12. A bundle wrapping machine as claimed in claim 10 including a stop actuated when the first switch is no longer conditioned by the bundle to prevent a succeeding bundle from entering the machine, and actuated when the second switch is no longer conditioned by the bundle to permit a succeeding bundle to enter the machine. I 13 In a bundle wrapping machine, a conveyor for the bundle to be wrapped, means for feeding a web of wrapping paper to the conveyor, a first selector switch adjacent the conveyor adapted to be conditioned by a bundle as it passes along the conveyor, a second such switch spaced from the first longitudinally of the conveyor, means actuated by the conditioning of both switches by the bundle to feed the web of paper to the conveyor beneath the bundle, and means conditioned by the conditioning of both switches to sever the web of paper, said last mentionedconditioned means being actuated when the first switch is no longer conditioned by the bundle.

14. In a bundle wrapping machine, a conveyor for bundles to be wrapped, and means for feeding a web of wrapping paper to the conveyor, means for mounting a roll of wrapping paper in position for feeding to the conveyor, said means comprising a carriage slidable transversely of the machine to and from an operating.

below the surface of the conveyor and adapted to reciprocate in an arc above the plane of the Surface of the conveyor and down into proximity with the cutting edge,

References Cited in the file of this patent UNITED STATES PATENTS Armstrong Oct. 2, 1860 Hogan Feb. 23, 1926 Hoppe Feb. 24, 1942 Sykes Apr. 28, 1953