USRE19996E - Npioft - Google Patents

Description

June 2, 1936. H. A. w. wooo 19,996

AUTOMATIC SPLICING DEVICE Original Filed Aug. 11, 1931' Sheets-Sheet 1 June 2, 1936.

H. A. w. WOOD AUTOMATIC SPLICING DEVICE Original Filed Aug. 11, 1931 5 Sheets-Sheet 2 Ivdew "Hlllllllll llffiigzff/zi June 2, 1936. A, w, OOD 7 Re. 19,996

AUTOMATIC SPLICING DEVICE Original Filed Aug. 11, 1931 5 Sheets-Sheet 5 5 Sheets-Sheet 4 H. A. W. WOOD AUTOMATIC SPLICING DEVICE Original Filed Aug. 11, 1951 June 2, 1936.

um mN N NN June 2,, 1936. H. A. W. WOOD 19,996

I AUTOM ATiG SPLICING DEVICE Original Filed Aug. 11, 1931 5 Sheets-Sheet 5 I i I l l i 1 i I l I 1 I 1 False lower Pnt Reissu'ed June 2, 1936 Ao'rom'no sruonvo nevron Henry A.- Wise Wood, Nei -Kerk, N. Y., aalignor to Wood Newspaper Machinery Corporation,

New York, N. Y a. corporation of Virginia Original No. 2,032,244, dated February 25, 193

Serial No. 556,388, sum 11, 19:1. Application for reissue March 26, 1936, Serial No.

' REISSUED This invention relates to a type of which is used in splicingweb rolls, such as those The principal object the inventionis to provide for efficient automatic control of the paper" for uniformity, thereby lessening paper breaks and permitting an operator to prepare moreu-olls since he is relieved of a large portion of his duties. Other objects of the invention are to provide simple means for shifting from automatic to socalled manual operation, to facilitate loading and to permit of more flexible operation; to provide simple means whereby a button can be pushed at any time 'and a poster can be made whenever the reel operator decides that it is not safe to use part of the web that would be used it it were allowed torun until small enough for the butt switch lever to pass over its edge, and-to provide for making the splice automatically from a larger butt than usual.

Other objects and advantages will appear hereinafter.

Reference is to be had to the accompanying drawings, in which:

Fig. 1 is an end view of a well-known-reel for supporting paper rolls showing this invention applied thereto;

Fig. 2 is an elevation of the device;

Figs. 3 to 9 aresmall' sketches showing the sequence of operation of this automatic device, and

Figs. 10 and 11 constitute the wiring diagram,

.which show the entire wiring of the machine.

In Fig. 2 the shaft 45 is mounted'in pedestals 46 adapted to be rotated by reel motor ll driving worm wheel 9. Spiders "carrying a multiplicity of rotatable spindles "for the mounting of paper rolls R are mounted on and slidably secured to the shaft 45. The embodiment shown is adapted to carry three such paper mils. Ten- .sion straps 51 are mounted in a conventional manner, one end being secured to the floor, the strap passing over idlers II with the other end carrying weights It is understood, 0! course,

of. the invention that the stationary straps do not form a claim of my invention, except in combination, and that being fed to large newspaper presses, with no diminution in speed of the press.

running tension belts may be used as well. By rotating thereel into or out of the straps more or less tension may be applied to the web'which is being fed'from the paper roll in use.

As covered in my former application, Serial No. 443,083, filed April 10, 1930, vnow Patent No.

1,891,965, December 27, 1932, when oneroll is nearly used up, the reel is in the position shown in Fig. 1 where a brush arm 5i; is lowered by the counterclockwise rotation of segmentil which is driven by a motor 58 through worm 59. Suitable stop switches are provided for limiting the motion of this brush arm as will be described later.

At the proper time, as determined by the size 0f the butt," a pasting brush 59 over which the web travels is allowed to move forward through the action of a brush solenoid G0 tripping a latch ll abutting a toe 62 so that springs 63 through spring rods il, arms 65, shaft G6 and arms 66a press the web against the new roll to pick up the paste-covered points, thereby -making the splice. It will be understood that, as in my above identified application, the fresh web roll has previously been rotated on its own axis and brought up to web speed. This mechanism is not shown here as it forms no part of this invention and may be operated independently.

After a certain length of paper has beenfedof! to insure splicing to the new roll, a knife 61,

rotated into the web, thereby severing the old sheet. After this is accomplished the motor 5! begins rotating in a reverse direction to that de through gear I, segment 69 and solenoid III is I to the dotted line position shown in Fig. 1. 'The reel then moves in a counterclockwise direction until the large new roll has sumcient contact with the tension straps 5 2 to insure proper tenslon at which point the reel stops. This position will be approximate to that shown in dotted lines in Fig. 1.

The paper is fed off from this reel position until the roll is approximately one-half the original diameter, at which time the roll switch lever ll passes over the edge of the roll thereby allowing. a spring I! to close contacts 2 and 5. As will be described later, this causes the reel to rotate to approximately the full line position shown in Fig. 1, from which position the paper is fed to the press until the roll becomes small enough to demand the lowering of the brush arm for another splice.

This automatic setting of the reel position performs two functions; it gives the proper surface contact of the tension straps on a large roll; and, positions the reel so that a magnetic clutch 83 is engaged to assist in retarding this roll suddenly in case of an emergency stop. This braking force on the roll spindle is actuated only when the emergency button is pressed. Selector rings I2 for this braking assistance through the roll spindle are so arranged that as long as the full roll is above say a horizontal line through the reel center, pressing of the emergency button will engage the magnetic clutch on the roll spindle 5i to retard this roll as the press slows down. If: however, the roll is below a horizontal line through the reel center the normaltension members 52 are then sufficient to stop the roll in proper relationship with the press on an emer gency button. This device is so arranged that. by the automatic positioning of the reel, when the press is stopped with a small size roll this braking through the spindle is not applied.

When the roll wears down to a certain predetermined size so that it is necessary to lower the brush arm this is done automatically by a switch lever I3 passing over the edge of the roll allowing spring It to close contacts 2 and 46. This causes the motor 58 to be energized to lower the brush arm to the proper position. Just as the motor 52 stops rotating, the reel begins to move in a counterclockwise direction until the surface of the incoming roll through an arm (Fig. 10) operates the monkey switch 8i, at which time the roll is the proper distance from the brush. The operation of the monkey switch causes the reel to stop rotating. This satisfies one of three conditions necessary to the operation of this mechanism.

cycle of operation and as will be described in conjunction with the wiring diagram, it will be seen that the whole operation is automatic.

The sequence of operations may be understood quite clearly from an inspection of Figs. 3 to 9. Fig. 3 shows the brush arm in the lowered position just after the paster has been made, when the brush is reset and the arm is being raised. Fig. 4 shows the brush arm raised to an inoperative position with the reel in running position for a full size roll, the fresh roll being pressed against the tension strap. Fig. 5 shows the same position with the roll used down to the point where switch lever II operates. Fig. 6 shows the reel position a few seconds later when it has shifted so that the running roll is at the lowered position. Fig. I shows the roll used down-until the switch lever 13 operates to lower the brush. The web from the nearly exhausted roll now runs closely adjacent to the fresh roll. The brush in its lowered position is shown in Fig. 8. Fig. 9 shows the paster being made and the running stub leaving the tension straps while the fresh roll is about to engage them, in conjunction with Fig. 3,

the brush.

which is next in sequence, completes the cycle of operation.

In tracing out the wiring diagram, let it be considered that the reel is in the position shown in Fig. '7, at which point switch lever I3 passes over the edge of the roll to close the contacts 2 and 46 to lower the brush arm 56 representing several contacts, each connected to one side of the line 2 and connected to contact 46 through brush 42a. The current goes through the double throw switch I06, determining whether or not the control is manual or automatic, and is connected with the line 42 which energizes the contactor IS. The other side of the line is represented by I and several contacts directly connected therewith. This closes'contacts I and 25 which is equivalent to pressing the lower" button in push button station 96. Through line 25 which passes through a safety switch IT, demanding that the reel be in the proper position before the brush arm may be lowered, a contact is made with 23 which in turn through a limit switch I8 makes contact with line 22. Line 22 then runs to contactor 19 thereby energizing it, since the other side of the contactor is connected to line 2. This closes the contacts shown directly above contactor 19 to cause the lift motor 58 to rotate in such a manner as to bring the brush arm down to the position shown in Fig. 8.

The cam is geared to and rotates with the' brush arm except in the opposite direction.

When the cam 80 has rotated to the position shown inFig. 10, contacts 22 and 23 are'opened thereby dropping out the power on contactor I9, causing the lift motor 58 to cease rotation. Just as the cam 30 begins rotating in its clockwise direction, as the brush arm is lowered, contacts I and 2!! in a switch 8I are closed so that current from oneside of the line I is transmitted through the line 20, through a rheostat 82 to line I6 which then goes into selector ring I2 and to slip ring I241 on the roll spindle and to one side of the magnetic clutch 83, the other side being connected to line 2. This energizes the magnetic clutch which setsin motion'the-incoming roll.

Just before the cam 80 reaches the position shown in Fig. 10, contacts 2 and 34 in the switch 84 are made, the latter contact running to one side of a contactor 85 thereby energizing it since the other side of this contactor is connected to line I. This closes contacts 210 to 5 and 34 to 35.

'The connecting of contacts 5 and 21a is equivalent to pressing the forward button 2'I-5, at push button station 96, causing the reel to rotate in a, counterclockwise direction. This is apparent when line 21 is traced over to contactor 86 one side of which is connected to line I and contact 5 is traced. through monkey switch 81 where it is normally connected to line 2. The energizing of contactor 86 closes contacts I and III, 2 and 39. This rotates the reel in a counterclockwise direction until the surface of the roll bears against atoe Illa-which operates monkey switch 81. The operation of the monkey switch at this time disconnects contacts 2 and 5, consequently dropping out contactor 86 and stopping the reel motor, and makes contacts 3 and I. Thismaking of contacts 3 and 4 satisfies one condition demanded before 9. splice is made; namely, that the roll is the proper distance from I The second condition to be satisfied is that the butt is the proper size as determined by the op eration of butt switch lever 15. After butt switch lever 15 slips over the edge of the roll to close contacts 34' and 35 the very next revolution of the incoming roll causes 9.,circuit to be established from line 2 through brush 34 when the segment 2 comes in contact with it. This vmay be traced back through the butt switch contacts 34 and .35 to selector-ring 35 and brush 4 to the monkey switch where contacts 4 and 3 are connected through resistance as to'contactor as the other side of which is connected to 'line I. This energizes contactor 89 closing the contacts-2 and 4.

Simultaneously with the closing of contactor 89 a brush release solenoid 50 is tripped sending the brush and the web which it carries against the incoming roll to pick up the pasted points. It will be noticed that measuring relay solenoid 9| is also connected with lines I and 3 and energized at the same. time. This releases a drum 92 on which are carried the several contacts shown so that these contacts rotate in direction relationship to the speed of the press.

When the drum 92 has rotated the proper distance to insure picking up the pasted points, brush l contacts with the small segmentconnected to line i. This places one side of the line on contact I5 which-may be traced through to the knife solenoid 93, the otherside of which is connected to line 2. This energizes knife solenoid releasing the knife to sever the old web. The rotation of the knife shaft 94 by a projection closes contacts l5 and 39 and by tracing contact 39 through the connection panel to selector ring 36, it will be seen that brake solenoid 95' is energized. since its other side is connected to line 2. This places a brake on the butt to prevent its paying off excess p'aperafter. the cut is-made.

Simultaneous with the operation of the knife,

contact H of the measuring relay is connected with the segment on drum .82 which is connected to line I. Tracing through of contact IE will .show that this is equivalent to pressing the raise button. in push button station 95. This connects one side of the line through limit switch, 91 to contact 2| which runs to one side of confactor 98, the other side. being connected to line 2. The energizing of this contactor 98 closes the contacts shown just above to rotate lift motor 58 in a direction to lift the brush arm. As the brush arm is lifted to the inoperative position,

cam 80, then rotating in a counterclockwise direction, opens contacts 2| and I9. This cuts oil.

the source of power to contactor 98 thereby stop-' ping the-lift motor.

. This raising of the brush arm undoes some of the things done as the brush arm was lowered.

. Thus, contacts I and 20 in limit switch 8| are broken, thereby deenergizing magnetic clutch 83. Before this is done, however, rheostat 82 performs its function of reducing the voltage on the magnetic clutch as the brush arm is being raised, 1 thereby releasing the tension caused by the magnetic clutch in a gradual manner.

The final disengagement of the clutch, however, is through the opening of contacts I and 20 in limit, switch BI and is. caused by the rotation of the cam 83.

, During the courseof lifting the brush arm, moncircuit feeding contactor 85 dropping it out thereby stopping the reel in the position shown in Fig. 4 Y

Meanwhile the drum 92 has been rotating in direct relationship to the press. When the wedgeshaped segment which is connected to line 6 contacts with contact 26, one side of the line is placed on this contact which may be traced to kicker solenoid I M, .the other side of which is connecte to line 2. This energizes the kicker solenoid moving 'ki'cker I02 to such a position that it sets ered, the butt'stopped, the brush arm lifted to the inoperative position, the papers on the delivery marked to distinguish them, and the new roll is running in the position illustrated in Fig. 4. As long as the reel is in this posit-ion selector ring i 2 contacts brush I1. With the reel so positioned, in event of anemergency stop of the press, contactor I04 is energized, since the terminals are connected across the dynamic brake resistance of the press motor (not shown) closing contacts 6 andll. Tracing through contact I! to selector ring l2 it will be found that this energized magnetic clutch 83 which takes a grip on the rollspindle assists the normal tension straps in bringing the roll to a stop in proper relation to the press without a sheet break; This particu-- lar featureI have covered in a former application, Serial No. 542,865, filed June 18, 1931.

As the press uses paper, the size of roll Rdiminishes until lever I05 (similar to 'H) passes over the edge of the paper to closecontacts 2 and 40. Contact 2, being one side of the power, may be traced through contact 40 to selector ring I40, through brush 21a to double-throw switch 605 where it connects to line 21 and thence to one side of contactor 86, the other side being connected to line I. This energizes contactor B6 9 closing contacts to cause motor 48 to rotate the reel in a counterclockwise direction. This continues untilbrush 21a passes off the right hand end of the selector ring I40 due to which contactor 86 is deenergized and the reel stops in the position shown in Fig. 6. In case of an emergency stop with the reel in this position contactor i4 is closed as before but brush 210. then connects with a dead segment and therefore no completed circuit is established to the magnetic clu ch of any spindle, the tension of normal tension members 52 being suflicient to stop the roll properly.

Paper continues to be used from roll R until lever I01 (similar to 13) passes over the edge of the roll closing contacts'2 and 4! to lower the brush arm and repeat the cycle.

In push button station 96 an optional button marked Paste is provided which connects contacts 4 and II. By tracing these lines back to the brushes operatingon the selector segments of thereel it will be seen that this provides a short circuit across the contacts serving the butt switch, such as 34 and 35 which is normally onerated by switch leve 15. This "Paste button is provided so that the reel operator, when in his judgement the butt may not be safely used down to the point where the butt switch lever the roll, may press it, the

' splice within one revolution of the incoming roll.

In a former application, Serial No. 544,762, filed June 16, 1931', I have provided for adjustability of this butt switch 15 so that an operator may judge the condition of the roll and regulate the switch to leave more or less paper on the butt accordingly. This Paste" button provides still an additional regulation in that the splice may be made from a. larger butt than the adjustable butt switch would normally accommodate or permit an operator to quickly make a splice should something untoward or unexpected happen to or show up as the butt is being used.

A double pole, double throw, switch 106 is provided to permit a shift from automatic to manual operation and back by simply pushing a button. A shift to manual control, through the opening of contact 42a, causescontactor 16 to become inoperative thus eliminating the automatic lowering of the brush arm; also, through the opening of contact 21a the automatic operation of the reel to its respective positions is eliminated. This latter feature is especially desirable since in the loading of rolls the reel is frequently moved back and forth to facilitate loading. After a new roll has been loaded the button marked Automatic is then pressed to remake contacts 21 and 21a, 42 and 42a, and the device resumes its automatic operation as described above.

It is, therefore, obvious that a splicing mechanism is provided which automatically performs all the functions incident to splicing a web, including severing of the old'web, braking the butt, lowering and lifting the brush arm, indicating the pasted papers on the delivery, and positioning the reel to provide proper tension of the paper, not only during normal running conditions but on emergency stops, without any attention on the part of the operator. His duties are only those of removing used butts and loading and preparing new rolls for splicing. Further, provisions are made for a simple shift from automatic to socalled manual operation of the device to facilitate loading of the reel and to permit of more flexible operation.

It is entirely within the scope of this invention that additional switch levers, operating either against the end of the surface of the roll, be used to cause the reel to be stopped at a greater number of operating positions or even that levers or contacts be operated from some such tension device as a. floating roller to cause the reel to move into or out of the'belts or straps inautomatic response to changes of tension.

Although I have illustrated and described only one form of the invention I am aware of the fact that modifications can be made therein by any person skilled in the art without de parting from the scope of the invention as expressed in the claims. Therefore, I do not wish to be limited in this respect, but what I do claim is:-

1. In a'web splicing machine, the combination with a reel for supporting web rolls and means "for operating the reel to move the rolls, of electrically operated means for starting and stopping the operation of the reel in a predetermined order tobring the rolls successively into the several positions for the various operations of splicing to take place, a kicker solenoid, and means operated by said electrically controlled means for energizing the kicker-solenoid to set askew' a product on the delivery at equal intervals.

2. In a machine for feeding a web to a printing machine and splicing it, the combination with a movable web roll support and means for operating it to move the web rolls, of means for controlling the motions of the support to bring the running rolls successively and repeatedly from the running position into position to direct the web therefrom closely adjacent to a fresh roll preparatory to splicing the running web to the fresh roll, means for pressing the running web out of its normal path against the pasted fresh roll for splicing, means for controlling the last named means, means controlled by the first named electric means for starting the operation of the controlling means, and means for rendering the operation of the last named means inoperative, to permit hand operation thereof.

3. In a Web feeding device, the combination with means for supporting a running roll and a fresh roll and means for operating it to move the rolls bodily, of means for controlling the operating means to bring the running roll successively into running position for the web therefrom to run closely adjacent to the surface of a fresh web roll in splicing position, means for pressing the web out of its normal path against the pasted fresh roll, means whereby the diminution in di ameter of the running roll will operate the last named means automatically, a push button, and means controlled by thepush button for rendering inoperative said last named automatic means for making a splice from a larger butt than usual, when desired.

4. In a web supply mechanism, a supportfor a running web roll and a replacement roll, means for accelerating the replacement roll to a peripheral speed substantially equal to that of the running roll, means for pressing the running web against the replacement roll when in runningposition to make a web join, actuating means mounted on the support and operated automatically when the running roll approaches exhaustion, and a timer moving in synchronism with the replacement roll and adapted to cooperate with the said actuating means to control the operation of the pressing means to make the join.

5. In a web supply mechanism, a support for a running web irolland-a replacement roll having adhesive on its web end, a first actuating means operated automatically when the running roll is partially exhausted for operating the roll support to move the running roll away from run- 1 .join, means for accelerating the replacement roll to a peripheral speed substantially equal to that of the running web, web shifting means for moving the running web against the replacement roll in running position, a second actuating means operated automatically when the running roll approaches exhaustion, and a timer moving in synchronism with the replacement roll and adapted to cooperate with said second actuating means to control the operation of the shifting means to make the join.

. 6. In aweb supply mechanism, a web deflector, means for moving the deflector into contact with the running web, a latch adapted to hold the deflector against a bias tending to force it toward 7. In apparatus of the character described, the

combination of movable means for supporting a plurality of rolls of paper, means for driving a fresh roll having adhesive thereon to .rotatejthe same and bring it up to the speed of the traveling 'web from an expiring roll, means for effecting contact of the rotating fresh roll and the traveling web from the expiring roll to make a paster,

and means for cutting off said web comprising a shaft, a cutting element thereon, a motor for turning said shaft, and means for automatically energizing said motor to operate said cutting element a predetermined and unvarying distance behind the pastel.

8. In a machine for splicing a running web,

, the fresh web roll has been placed in splicing position and has made more than one full revolution to permit the brush topress the, running web, againstthe fresh web roll tomake a splice.

9. In a machine for splicing a running web,

the combination of a rotatable web roll support capable of supporting a plurality'of web rolls including a running web roll and a fresh web roll, a pasting brush movable from inoperative position to an intermediate position, means for speeding up the fresh web roll,- means for rotating the support to bring the fresh web roll to splicing position adjacent to the running web and stopping rotation of the support, a timer moving in synchronism with the fresh web roll, and a circuit completing device adapted to operate after the fresh web roll has been placed in.

splicing position and has made more than one full revolution to permit the brush to press the running web against the fresh web roll to make a splice.

10. In a machine for splicing a running web, the combination of a rotatable web roll support capable of supporting a plurality of web rolls including a running web roll and a fresh web roll, a pasting brush movable from inoperative position to an intermediate position, means for adapted to operate after the fresh web roll has been placed in splicing position and has=made more than one full revolution to permit the brush to press the running web against the fresh web roll to make 2. splice.

11. In a machine for splicing a running web, the combination of a rotatable web roll support capable of supporting a plurality of web v rolls including a running web roll and a fresh web roll, a pasting brush movable from inoperative position to an intermediate position, means for speeding up the fresh web roll, means for placing the roll in splicing position adjacent to the running web, a timer moving in synchronism with the fresh web roll, and a circuit completing device adapted to operate after the fresh web roll has been placed in splicing position and has made more than one full revolution to permit the brush to press the running web against the fresh web roll to make a splice.

12. In a web supply mechanism, a rotatable web roll support provided with rotating mechanism and adapted to rotatably carry a running roll and a replacement roll,'and control means for said rotating mechanism mounted on the support and adapted to rotate said support when the running roll is reduced toa predetermined diameter and means operated by the motion of the support to stop said support when the replacement roll is in splicing position adjacent the running web.

13; In a web supply mechanism, a support for a running web roll and a replacement roll, a brush arm, actuating means operated automatically when the running roll is partially exhausted for rotating the roll support to move the replace-' ment roll into position for lowering the brush arm, means controlled by the running roll for lowering the brush arm and rotating the roll support to move the replacement roll into position for making a web join,-means governed by the diameter of the replacement roll for stopping the support automatically when the periphery of the replacement roll reaches a position near the web running from the running roll, and a brush arranged to press the running web against the replacement roll to make the join.

. 14. In a'web supply mechanism, a support for a running web roll and a replacement roll havingadhesive on its outer web end, means for accelerating the replacement roll to a peripheral speed substantially equal to thatof the running roll, web shifting means for moving a web from the running roll against the replacement roll, actuating means on the support and including a. finger engaging each roll, and a timer moving in synchronism with the replacement roll and adapted to cooperate with the said actuating means to control the operation of the shifting means when the running roll approaches exhaustion.

15. In a web supply mechanism, a rotatable support for a running web roll and areplacement roll, a motor for rotating the support to bring-the periphery of the replacement roll near the running web, a web deflector adapted to press the running web against the surface of the replacement roll, ,feelers bearing on the rolls, and

means governed by the feelers to start and to stop the motor, and to control the operation of the web deflector. i

16. In a mechanism for supplying a web to a printing machine, a rotatable carrier for supporting a. plurality of web rolls and adjustable to receive rolls of varying length, means responsive to reduction of the running roll to initiate the operation of changing the web feed from a roll carried by one end of the carrier to a roll carried by another end of the carrier, means associated with each end of the carrier for initiating a phase in the web renewal operation in dependence on the angular position of the roll of the-corresponding carrier, and a selector device for rendering the last mentioned means respectively operative in dependence on the positions of the carriers relative to a normal running position.

1'7. In a machine for splicing a running web, the combination of a rotatable web roll support capable of supporting aplurality of web rolls including a running web roll and a fresh web roll, an electrical circuit, a pasting brush movable from inoperative position to an intermediate position, means for speeding up the fresh web roll, mean-s for rotating the support to place the fresh web roll in splicing position adjacent to the running web, and a push button so arranged in the circuit that it may be operated after the fresh web roll has been placed in splicing position and has made more than one full revolution to permit thebrush to press the running web against the fresh web roll to make 9. splice.

18. In a machine for splicing a running web, the combination of a rotatable web roll support capable of supporting a plurality of web rolls including a running web roll and a fresh web roll, an electrical circuit, a pasting brush movable from inoperative position to an intermediate position, means for speeding up the fresh web roll, means for rotating the support to place the fresh web roll in splicing position adjacent to the running web, a timer moving in synchronism with the fresh web roll, and a push button so arranged in the circuit that it maybe operated after the fresh web roll has been placed in splicing position and has made more than one full revolution to permit the brush to press the running web against the fresh web roll to make 9. splice.

19. In a machine for splicing a running web, the combination of a rotatable web roll support capable of supporting a plurality of web rolls'including a running web roll and a fresh web roll, a pasting brush movable from inoperative position to an intermediate position, means for speeding up the fresh .web roll, means for rotating the support to place the fresh web roll in splicing position adjacent to the running web, and means which are operated after the fresh web roll has been placed in splicing position and has made more than one full revolution, to permit the brush to press the running web against the fresh web roll to make a splice.

20. In a web splicing device, the combination with means tor supporting a fresh web roll, means for rotating the fresh web roll through its axis, a magnetic clutch for controlling the last named means. and means for supplying a current to the magnetic clutch gradually, to give a smooth acceleration to the fresh roll and a gradual deceleration.

21. In a web splicing device, the combination with means for supporting a fresh web roll, and means for rotating the i'resh web roll through its axis, of a magnetic clutch for controlling the last named means, means for applying a current to the magnetic clutch gradually to give a smooth acceleration to the fresh roll, tension straps for engaging the said web roll after splicing, and means for gradually throwing out the magnetic clutch while the tension straps are also taking efl'ect on the roll gradually.

i HENRY A. WISE WOOD.

Images