US3918655A

US3918655A - Web-splicing apparatus

Info

Publication number: US3918655A
Application number: US413793A
Authority: US
Inventors: Rudolf E Hillner; Jr David Strouse; Lou Hoch
Original assignee: CHAMPION EDISON Inc
Current assignee: CHAMPION EDISON Inc
Priority date: 1973-11-08
Filing date: 1973-11-08
Publication date: 1975-11-11
Anticipated expiration: 1992-11-11

Abstract

Apparatus is disclosed for automatically splicing the beginning of one roll of papers or the like onto the approximate end of a second roll of paper or the like without discontinuing the flow of paper to a utilizing device. The apparatus includes a support stand with the support stand having a first support shaft carrying said one roll of paper and a second support shaft for carrying the second roll of paper. A festooner arrangement is carried by the support stand for establishing an elongated path of travel for paper of the second roll moving through the apparatus and for allowing the utilizing device to feed upon the paper carried by the festooner arrangement when the second roll of paper has stopped rotating. There is provided first sensing means for stopping the rotation of the second roll when a preselected amount of paper remains on the roll and there is provided clamping, severing and splicing means responsive to the halt of the second roll of paper for clamping the paper of the second roll at a first predetermined location, severing the paper of the second roll at a second predetermined location, below the first predetermined location, and for joining the beginning of the first roll to the severed end of the second roll. Thereafter, releasing means are provided for resetting the clamping, severing and splicing means after the beginning of the first roll has been joined to the severed end of the second roll. First drive means, including a motor, is provided for rotating the first support shaft and with it the first roll of paper to help bring it up to speed. There is provided control means for energizing the first drive means for a preselected length of time, dependent upon the weight of the new roll of paper. A second sensing system is responsive to the tension in the paper of the first roll and generates control signals in proportion to the tension. Associated therewith is a first braking system which cooperates with the first support shaft carrying the first roll of paper and which is responsive to the aforementioned control signals for controlling the speed of rotation of the aforesaid first roll of paper on the support shaft associated therewith. In this manner, a servosystem is established to slow down the new roll of paper once it has been brought up to speed by the aforementioned motor, and which servosystem continues to provide appropriate braking action in accordance with the tension on the paper of said roll.

Description

United States Patent [1 1 Hiilner et al.

[ 5] N0v.-ll,1975

[ WEB-SPLICING APPARATUS [75] Inventors: Rudolf E. Hillner, Colts Neck;

David Strouse, Jr., Parlin; Lou Hoch, Nutley, all of NJ.

[52] US. Cl. 242/581; 156/504 [51] Int. Cl. B65H 19/18 [58] Field of Search 242/581, 58.2, 58.3, 58.4,

[56] References Cited UNITED STATES PATENTS 1.995.722 3/1935 Smith 242/7544 3.123.314 3/1964 Bruestle 242/586 X 3.537.663 11/1970 Johnson 242/581 3.645.463 2/1972 Helm 242/581 Primary E.\'aminer.lohn W. Huckert Assistant Examiner-John M. Jillions Attorney, Agent, w-Firm-Lemer, David, Littenberg & Samuel roll moving through the apparatus and for allowing the utilizing device to fee upon the paper carried by the festooner arrangemen when the second roll of paper has stopped rotating. There is provided first sensing means for stopping t e rotation of the second roll when a preselected afnount of paper remains on the roll and there is provided clamping. severing and splicing means responsive to the halt of the second roll of .paper for clamping the paper of the second roll at a first predetermined location, severing the paper of the second roll at a second predetermined location. below the first predetermined location, and for joining the beginning of the first roll to the severed end of the second roll. Thereafter, releasing means are provided for resetting the clamping, severing and splicing means after the beginning of the first rollhas been joined to the severed end of the second roll. First drive means, including a motor, is provided for rotating the first support shaft and with it the first roll of paper to help bring it up to speed. There is provided control means for energizing the first drive means for a preselected length of time, dependent upon the weight of the new roll of paper. A second sensing system is responsive to the tension in the paper of the first roll and generates control signals in proportion to the tension. Associated therewith is a first braking system which cooperates with the first support shaft carrying the first roll of paper and which is responsive to the aforementioned control signals for controlling the speed of rotation of the aforesaid first roll of paper on the support shaft associated therewith. In this manner, a servosystem is established to slow down the new roll of paper once it has been brought up to speed by the aforementioned motor, and which servosystem continues to provide appropriate braking action in accordance with the tension on the paper of said roll.

US. Patent Ne 11,1975 Sheet10f3 3,918,655

U.S. Patent Nov. 11,1975 Sheet2 of3 3,918,655

.Patent Nov. 11,1975 Sheet30f3 3,918,655

WEB-SPLICING APPARATUS BACKGROUND OF THE INVENTION In US. Pat. No. 3,645,463, assigned to the assignee of the present invention, there is described apparatus for automatically splicing the beginning of one roll of paper or the like onto the approximate end of a second roll of paper of like material without discontinuing the flow of paper to utilizing device.

The apparatus described in the aforementioned patent includes a support stand having means for supporting first and second rolls of paper in rotatable relationship therewith. Also carried on the support stand isa festooner arrangement including at least one set of displaceable rollers for establishing an elongated path of travel for paper of the exhausting roll, moving to the apparatus, and for allowing the utilizing device to feed upon the paper carried'by the festooner when the second, exhausting roll of paper has stopped rotating to initiate the automatic splicing operation.

Once the exhausting roll of paper has stopped rotating and during the time that the displaceable rollers of the festooner are continually shortening the aforementioned elongated path of travel, such that the utilizing device still has a supply of paper upon which to feed; the clamping, severing and splicing assembly of the patented invention performs three functions. First, the clamping mechanism thereof clamps the paper of the exhausting roll between itself and a backing plate positioned on the opposite side of the path of travel of the paper. Second, and virtually immediately after the clamping operation, the severing portion of the clamping, severing and splicing assembly severs the exhausting roll of paper at a location beneath the position at which the trailing end of the exhausting roll is maintained by the clamp. Third, and virtually simultaneously with the aforedescribed severing, the splicing portion of the clamping, severing and splicing assembly joins the previously treated beginning end of a new roll of paper with the severed end of the exhausted roll of paper. Finally, once the clamping, severing and splicing assembly is reset, such that the clamping portion thereof is released from the trailing end of the ex hausted roll of paper, the new roll of paper will begin to flow through the festooner rollers and onto the utilizing device.

SUMMARY OF THE INVENTION The instant invention is directed to improvements in the web-splicing apparatus disclosed in the aforementioned US. Pat. No. 3,645,463. Specifically, and in accordance with the invention, after the above-described changeover operation, it has been found desirable to accelerate the new roll of paper to help it reach the speed of the utilizing device and thereby avoid the possibility of the paper being severed when the festooner supply is used up. To effectuate the acceleration of the new roll of paper, a motor is employed and controlled by a timer which energizes the motor for a predetermined period of time, selected in accordance with the weight of the roll of paper. A tension responsive mech- .anism is provided to sense the tension in the paper being dispensed from the new roll of paper and through the use of a variable potentiometer, to apply control signals to a braking mechanism associated with the shaft upon which the new roll of paper is supported. As the new roll of paper accelerates and its pay-out of paper approaches the take-up of paper by the utilizing device, such equilibrium is sensed by the tension responsive mechanism so as to generate the necessary control signals to energize the braking mechanism and slow down the new roll of paper. Of course, any slow down of the new roll of paper will cause the tension responsive mechanism to generate appropriate control signals to deactivate the braking mechanism to allow the new roll of paper to speed up once again. In effect, the system functions as a servo-mechanism, allowing the new rollof paper to properly accelerate and decelerate in accordance with the speed of take-up of the utilizing device.

Accordingly, it is an object of the instant invention to provide improved apparatus for automatically splicing the beginning of one roll of paper or like material onto the approximateend of a second roll of paper or like material without discontinuing the flow of paper to a utilizing device.

Another object of the instant invention is to provide such apparatus which includes means to accelerate the new roll of paper after the changeover operation.

Still another object of the instant invention is to provide such apparatus which includes a following servomechanism which controls the acceleration and decleration of the new roll of paper in accordance with the take-up of the utilization device.

These and other objects of the instant invention will become further apparant upon reading the following specification and accompanying drawings.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING 7 FIG. 1 is a front view of the automatic splicing apparatus of the instant invention;

FIG. 2 is a rear view of the apparatus of FIG. 1; FIG. 3 is an end view of the apparatus of FIG. 1.

DETAILED DESCRIPTION Turning to the figures, wherein like numerals are used to designate like elements, and with specific reference to FIG. 1, there is shown the automatic splicing apparatus 10 of the instant invention. In many respects, the apparatus 10 is extremely similar to the apparatus disclosed and claimed in US. Pat. No. 3,645,463, assigned to the assignee of the present invention, and, accordingly, the subject matter thereof is specifically incorporated herein by specific reference thereto. However, for purposes of better understanding the present invention, a short review of the operation of the apparatus of US Pat. No. 3,645,463 is presented herein.

Thus, with reference to FIG. 1, there is shown the automatic splicing apparatus 10 by which the previously treated beginning end 12 of a new roll of paper 14 may be quickly and automatically joined to the approximate end 16 of a virtually exhausted roll 18 of paper or like material without discontinuing the flow of paper to a utilizing device (not shown) but whose location is depicted by the arrowhead 20 associated with the flow of paper through the apparatus 10. The designation approximate end 16 of the exhausted roll of paper 18 is intended to denote the fact that the beginning end 12 of the new roll of paper 14 will be joined to the paper of the exhausted roll 18, not at its actual end thereof, but at a point 16 substantially near the end of the paper on the roll 18.

Broadly speaking, the apparatus 10 includes a support stand 22 provided at its lower extremity with a pair of outstanding bearing

axles

24 and 26, respectively, which carry the rolls of

paper

14 and 18 in a manner to be further described. At its opposite extremity, the support stand 22 carries a festooner arrangement broadly designated 25, while at an intermediate location, the support stand 22 carries clamping, severing and splicing means broadly designated 27.

The festooner arrangement 25 includes a first set of rollers 28 rotatably carried by a common support bar 30 rigidly secured to a central post like portion 32 of the the support stand 22. The festooner 25 further includes a second set of rollers 34 rotatably carried by a common bar 36 slideably displaceable along the upright post portion 32 of the support stand 22. Although not illustrated in detail, it might be noted that the common bar 36 may be slideably mounted along the central post portion 32 of the support stand 22 by any convenient mounting means, such as an enlarged collar circumventing the post portion 32 or by being appropriately retained in a retaining channel or guide provided along the forward surface of the post portion 32. Regardless of the mounting arrangement being utilized, the second set of rollers carried by the common bar 36 must be displaceable relative to the first set of rollers 28, as suggested by the phantom showing 36 prime in FIG. 1.

Thus, it will be appreciated that the normal flow of paper through the apparatus is from the exhausting roll 18, around a pair of tension responsive rollers 37, forming a part of the instant invention, and to be described in greater detail, through a pair of positioning rollers 38, through the clamping, severing and splicing apparatus 27, around the freely rotating directional roller 40, then around the

rollers

28 and 34 in the manner depicted by arrowheads 42; and finally to the utilization device (not shown) whose location is depicted'by the arrowhead 20. It can thus be appreciated that the tortuous path defined by the

rollers

28 and 34 of the festooner arrangement establishes an elongated path of travel for the paper and in so doing makes a considerable amount of paper available above the clamping, severing and splicing apparatus 27. Thus, when the roller 18 has been just about exhausted such that it is necessary to halt its rotation and initiate the changeover operation; by virtue of the downward displacement of the second set of rollers 34, this amount of paper carried in the festooner will become available for continuous supply to the utilizing device. During this displacement, the clamping, severing and splicing assembly 27 will join the beginning end 12 of the roll 14 to the approximate end 16 of the exhausted roll of paper 18. The manner in which this is effected is, as noted above, completely set out in detail in the aforementioned U.S. Pat. No. 3,645,463, and will not be repeated in detail herein. Sufficient to note, that once the clamping, severing and splicing mechanism has been operated to join the beginning end of the first roll to the approximate end of the exhausted roll, the mechanism is reset and the utilizing device begins to feed on the paper being supplied by the new roll without any interruption having taken place during the changeover.

With respect to the festooner arrangement 25, the upper displaceable bar 36 thereof has connected thereto, at a point generally designated 44 in FIG. 3, one end 46 of a chain or other suitable connecting member 48 which passes over a guide pulley 50, and into the hollowed-out central portion 32 of the stand 22 4 where its opposite end 52 (see FIG. 2) is connected to one end of a piston 54 which resides within a cylinder 56. The cylinder 56 includes an inlet port 58 provided with a conventional one-way check valve 60 and an outlet port 62 similarly provided with a conventional one-way check valve 64.

In operation, compressed air is supplied from a source broadly designated 66 in the aforementioned U.S. Pat. No. 3,645,463 through the inlet port 58 and against the enlarged piston head 68 of the piston 54. The pressure is maintained at a sufficient magnitude to just counterbalance the upward force on the piston 54 generated by the weight of the common bar 36 with the rollers 34 thereon and the tension force downwardly applied to the common bar 36 by virtue of the pull applied by the utilizing device on the paper passing through the apparatus. It will be appreciated that the one-way check valve 60 permits the entry of air under pressure into the cylinder 56 but prevents a reverse flow, while the one-way check valve 64 performs a similar function with respect to the exhausting of air from the cylinder 56 and, in addition, is constructed to permit build-up of sufficient counterbalancing air pressure against the piston head 68. Alternatively, valve 64 may be a manually controllable valve which can be preset to exhaust upon the build-up of predetermined pressures within the cylinder 56 as a function of the speed of operation of the utilizing device.

Thus, during normal operation of the apparatus 10, that is, with the paper from roll 18 passing therethrough, the displaceable roll 34 will be maintained in the solid line position illustrated in FIG. 1. However, when the roll of paper 18 is virtually exhausted, such that it is necessary to halt rotation to initiate a changeover operation, there is a substantially greater downward force applied on the rollers 34. This increased downward force is, of course, generated by virtue of the fact that the exhausting roll of paper 18 has now stopped rotating, while the pull on the paper passing through the festooner-arrangement 25 remains substantially the same. As a result, the upward force as applied to the piston 54 (FIG. 2) exceeds the counterbalancing force applied by the pressure from the source 66 whereby the piston 54 begins to rise (and the cylinder 56 is exhausted through the valve 64 and exit port 62). In this manner, as the utilizing device continues to pull on the paper carried by the festooner, the displaceable rollers 34 are free to approach stationary rollers 28. It is during this downward displacement of the rollers 34, that the extra length of paper which was established by the tortuous pass of the

rollers

28 and 36 becomes available for feeding the utilizing device while the changeover operation takes place.

To initiate the above-described process, there is provided on the support stand 22 adjacent the

axles

24 and 26, at a predetermined diametric distance therefrom, a pair of sensing switches 118 and 120 (see FIG. 2). Each of the switches includes a sensing finger 122 and 124, respectively, which is normally biased to engage the rear surface of the roll of paper positioned therebefore. Thus, when the roll of paper 18 is virtually exhausted, and its diameter becomes sufficiently small to no longer restrain the sensing finger 122, the normally open circuit established thereby (not shown) will close to energize appropriate braking means (123 or 125, respectively) to halt the rotation of the roll 18. The braking means 123 and 125 may be conventional electrically operated clutch-brake mechanisms associated with the bearing axles or

support shafts

24 and 26 which carry the rolls of

paper

14 and 18. In any event, when the sensing finger 124 is released, a circuit is made to apply an electrical signal to the brake 123 to halt the rotation of the roll 18. When the roll 18 is halted; the continued pull indicated by the arrowhead 20 will, with the permission of the exhausting cylinder 56 or 52, begin to move the rollers 34 toward the rollers 28, thereby providing a continuous flow of paper to the utilizing device starting the changeover operation in .which the clamping, severing and splicing apparatus 27 operates in the manner described in the aforementioned U.S. Pat. No. 3,645,463.

After the operation of the clamping, severing and splicing apparatus, the entire mechanism thereof is reset, such that the trailing end of the old roll of paper and the beginning end of the new roll of paper spliced thereto, can continue flowing through the apparatus, it being appreciated that with paper flowing through the apparatus once again, the net downward force on the displaceable rollers 34 is reduced such that the common bar, under the influence of the fluid in the cylinder 56 of FIG. 2, will slowly return to its solid line position of FIG. 1.

As explained in greater detail in the aforementioned US. Pat. No. 3,645,463, to control in proper sequence, the various mechanisms, there is provided on the displaceable common bar 36 (see FIG. 3) an extending actuating finger 174 which will sequentially engage

microswitches

176 and 178 carried by a stationary block 180 as the displaceable bar 136 moves from the solid line of FIG. 1 toward its phantom showing 36 prime. As described in the aforementioned patent, the closing of microswitch 176 by actuating finger 174 initiates the operation of the clamping, severing and splicing mechanism 27, while subsequently, when the finger 174 closes the microswitch 178, the clamping, severing and splicing mechanism 27 is reset to allow the new supply of paper to continue to feed through the apparatus.

Briefly summarizing the operation of the aforementioned patent, let it be assumed that the roll 18 of FIG. 1 is becoming exhausted such that it is desired to introduce a new roll of paper 14 without discontinuing the flow of paper to the utilizing device. When the exhausting roll of paper 18 dwindles down to a diameter less than the diametric location of the microswitch 118, the sensing finger 122 thereof is freed to establish the necessary circuit to energize the braking device 125 associated with the shaft 26 carrying the roll 18 to halt the rotation of the roll of paper 18. Once the rotation of the roll 18 is halted, the continued pull of the utilizing device on the paper exerts a substantially greater downward force on the rollers 34, whereby the common bar 36 begins its downward displacement toward the stationary roller 28. During such downward displacement, and while the changeover operation takes place, the additional paper carried by the festooner now becomes available for utilization.

As the common bar 36 descends, with reference to FIG. 3, the extending finger 174 initially contacts the microswitch 176 to activate the clamping, severing and splicing apparatus 27 described in the aforementioned patent, a clamp 132 is actuated to grasp the approximate end 16 of the exhausting roll of paper; thereafter, the exhausting roll of paper 18 is severed, and, thereafter, the beginning end of the roll 14 is spliced to the end of the exhausting roll.

Finally, when the splicing completes, the extending actuating finger 174 shown in FIG. 3 reaches the sec ond microswitch 178 carried by the block 180 to close the necessary circuit to reset the clamping, severing and splicing mechanism (which includes withdrawing of the clamp 132) such that the trailing end of the old roll of paper and the beginning end of the new roll of paper spliced thereto can continue flowing through the apparatus. Of course, since the new roll of paper 14 is not yet up to speed, there will still remain a net relative force in the direction of location 20 which will have the effect of continuing to pull the displaceable rollers 34 downwardly toward the stationary rollers 28.

In accordance with the instant invention, means are provided to actively accelerate the rotation of the new roll of paper 14 and then to regulate same in accordance with speed of the take-up of the utilizing device. To effect such operation, and with reference to FIG. 2, there is provided

electric motors

200 and 202 associated with each of the rolls 1.4 and 18, respectively. Thus, with respect to FIG. 3, output shaft 204 of motor 200 carries a pulley 206 which is connected through V-belt 208 to pulley 210 on the rear of the support shaft 26 which carries the roll of paper 14. As noted previously, electrically operated brake 123 is situated intermediate the ends of the shaft 26 and is operated in accordance with electrical signals applied thereto from the variable potentiometer 212 to be described in greater detail. The motor 200 is energized when the flnger 174 traveling with the displaceable rollers 34 closes microswitch 214 provided on a block 216 secured to the post 32. Closing of the microswitch 214 energizes a timer 218 to energize the motrr 200 for a period of time in accordance with the setting applied to the timer 218. It will be appreciated that the timer is set in accordance with the weight of the roll of paper 14. Thus, the heavier the roll of paper 14, the longer the motor 200 must be energized in order to accelerate the roll 14. The timer 218 can be varied accordingly.

In accordance with another aspect of the invention, a servosystem is provided to regulate the speed of rotation of the supply rolls of paper in accordance with the take-up needs of the utilizing device feeding upon the apparatus. As best seen in FIG. 2, the system includes arms 220 pivotally connected to the

support stand

22 and 222. Arms 220 carry rotatable rollers 37 at their outmost extremity thereof about which passes the paper from the

rolls

14 and 18. Considering the roll of paper 14 in FIG. 2, it will be appreciated that the greater the speed of the take-up device, the more tension will be applied to the paper from the roll 14 such that the tendency of the arm 220 will be to rotate clockwise about its pivotal connection 222. Of course, should the utilizing device slow down relative to the speed of rotation of the roller 14, the paper being dispensed therefrom will slacken, allowing the arm 220 under the influence of gravity to rotate counterclockwise around its pivotal connection 222. In accordance with the invention, such motion of the arm 220 is linked by mechanical linkage arrangement 224 to the aforementioned variable potentiometer 212 which applies control signals via line 213 to the brake 123 (or to activate or deactivate the brake and, thereby, control the speed of rotation of the shaft 26 (and the roll 14) in accordance with the tension sensed by the roller bearing arm 220. Operation is, therefore, as follows. Assuming that after the clamping, severing and splicing mechanism has been reset by virtue of the finger 174 passing the microswitch 178, continued downward displacement of the rollers 34 causes the finger 174 to engage the microswitch 214 (FIG. 3). When microswitch 214 is closed, the timer 218 is energized for a predetermined length of time (which was preset in accordance with the weight of the roll 14) to energize the motor 200, the output of which through the V-belt 208 and pulley 210 causes the shaft 26 and the roll 14 carried thereby to accelerate. As the roll 14 accelerates, the pay-out of the paper thereon begins to approach the take-up speed of the utilizing device such that there is less tension in the paper being pulled and, in fact, the paper begins to slacken. As the paper traveling through the apparatus slackens, the roller bearing arm 220, under the influence of gravity, rotates counterclockwise downwardly about its pivotal connection 222 which motion is transmitted by mechanical linkage 224 to the variable pot 212 which applies appropriate braking signal via line 213 to the brake 123. Brake 123 then slows down the rotation of shaft 226 and the roll of paper 14 carried thereby to thereby prevent any overacceleration of the roll 14. Of course, as the roll 14 slows down, the tension in the paper traveling through the apparatus increases and begins to pull the arm 220 upward and clockwise around its pivotal connection 222. Again, such movement is transmitted by the mechanical linkage 224 to the variable pot 212 to lessen the braking signal applied via the line 213 to the brake 123. Accordingly, shaft 26 and roll 14 is free to catch up with the utilizing device. The net result of the aforedescribed servosystem is to continually allow the roll of paper 14 to rotate in accordance with the takeup of the utilizing device.

Although this invention has been described with respect to its preferred embodiments, it should be understood that many variations and modifications will now be obvious to those skilled in the art, and it is preferred, therefore, that the scope of the invention be limited. not by the specific disclosure herein, only by the appended claims.

What is claimed is:

1. Apparatus for automatically splicing the beginning of one roll of paper or the like onto the approximate end ofa second roll of paper or the like without discontinuing the flow of paper to a utilizing device; said apparatus comprising:

a support stand;

first support shaft means carried by said support stand for carrying said one roll of paper; second support shaft means carried by said support stand for carrying said second roll of paper;

festooner means carried by said support stand for establishing an elongated path of travel for paper of said second roll moving through said apparatus and for allowing said utilizing device to feed upon the paper carried by said festooner means when the second roll of paper has stopped rotating;

first braking means for stopping rotation of said second roll when a preselected amount of paper remains on said roll:

8 clamping, severing and splicing means responsive to the halt of said second roll for clamping the paper of said second roll at a first predetermined location, severing the paper of said second roll at a second predetermined location, below said first predetermined location, and for joining the beginning of said one roll to the severed end of said second roll;

releasing means for resetting said clamping, severing and splicing means after the beginning of said one roll has been joined to the severed end of said second roll;

first drive means for rotating said first support shaft means;

control means for energizing said first drive means for a predetermined length of time, said control means being activated after the operation of said releasing means;

sensing means responsive to the tension in said paper of said one roll for generating control signals in proportion to said tension in said paper of said one roll;

second braking means for stopping the rotation of said first roll when a preselected amount of paper remains thereon and for cooperating with said first support shaft means and responsive to said control signals for controlling the speed of rotation of said first support shaft means; wherein said festooner means comprises:

a first set of rollers secured to said support stand in freely rotatable relation therewith;

a second set of freely rotatable rollers, said second set of rollers being displaceable relative to said first set of rollers;

said paper of said second roll alternatively passing over rollers of said first and second sets to establish said elongated path; and further including operating means for maintaining said second set of rollers at a predetermined distance from said first set of rollers when said second roll of paper is rotating, said operating means including means for permitting said second set of rollers to approach said first set of rollers when said second roll of paper has stopped rotating; wherein said apparatus further includes:

first switch means responsive to said first set of rollers traveling a first predetermined distance for initiating operation of said clamping, severing and splicing means;

second switch means responsive to said first set of rollers traveling a second predetermined distance for initiating operation of said releasing means; and

third switch means responsive to said first set of rollers traveling a third predetermined distance for initiating operation of said control means.

2. The apparatus of claim 1 wherein said drive means includes a motor and said control means compises a timer.

Claims

1. Apparatus for automatically splicing the beginning of one roll of paper or the like onto the approximate end of a second roll of paper or the like without discontinuing the flow of paper to a utilizing device; said apparatus comprising: a support stand; first support shaft means carried by said support stand for carrying said one roll of paper; second support shaft means carried by said support stand for carrying said second roll of paper; festooner means carried by said support stand for establishing an elongated path of travel for paper of said second roll moving through said apparatus and for allowing said utilizing device to ''''feed'''' upon the paper carried by said festooner means when the second roll of paper has stopped rotating; first braking means for stopping rotation of said second roll when a preselected amount of paper remains on said roll: clamping, severing and splicing means responsive to the halt of said second roll for clamping the paper of said second roll at a first predetermined location, severing the paper of said second roll at a second predetermined location, below said first predetermined location, and for joining the beginning of said one roll to the severed end of said second roll; releasing means for resetting said clamping, severing and splicing means after the beginning of said one roll has been joined to the severed end of said second roll; first drive means for rotating said first support shaft means; control means for energizing said first drive means for a predetermined length of time, said control means beinG activated after the operation of said releasing means; sensing means responsive to the tension in said paper of said one roll for generating control signals in proportion to said tension in said paper of said one roll; second braking means for stopping the rotation of said first roll when a preselected amount of paper remains thereon and for cooperating with said first support shaft means and responsive to said control signals for controlling the speed of rotation of said first support shaft means; wherein said festooner means comprises: a first set of rollers secured to said support stand in freely rotatable relation therewith; a second set of freely rotatable rollers, said second set of rollers being displaceable relative to said first set of rollers; said paper of said second roll alternatively passing over rollers of said first and second sets to establish said elongated path; and further including operating means for maintaining said second set of rollers at a predetermined distance from said first set of rollers when said second roll of paper is rotating, said operating means including means for permitting said second set of rollers to approach said first set of rollers when said second roll of paper has stopped rotating; wherein said apparatus further includes: first switch means responsive to said first set of rollers traveling a first predetermined distance for initiating operation of said clamping, severing and splicing means; second switch means responsive to said first set of rollers traveling a second predetermined distance for initiating operation of said releasing means; and third switch means responsive to said first set of rollers traveling a third predetermined distance for initiating operation of said control means.