US1891965A - Quick change web splicing device - Google Patents

Description

Dec. 27, 1932.

H. A, W. WOOD QUICK CHANGE WEB SPLICING DEVICE Original Filed April lO, 193C 5 Sheets-Sheet l Dec. 27, 1932. H Al W WOOD 1,891,965

QUICK CHANGE WEB SPLICING DEVICE Original Filed April lO, 1950 5 Sheets-Sheet 2 gg, @Jew ff/ZZA M2750] Dec. 27, 1932. ||l Al WI WOOD 1,891,965

QUICK CHANGE WEB SPLICING DEVICE Original Filed April lO. 1930 5 Sheets-Sheet 3 fMM Dec. 27, 1932.

H. A. W. WOOD QUICK CHANGE WEB SPLICING DEVICE Original Filed April l0. 1950 5 Sheets-Sheet 4 Dec. 27, 1932. H, A. w. woon QUICK CHANGE WEB SPLICING DEVICE Original Filed April 10, 1950 5 Sheets-Sheet 5 Patented Dec. 27, 1932 UNITED sTATEs HENRY A. WISE WOOD, OF NEW YORK,

VPA'rlezNr OFFICE N. Y., ASSIGNOR TO WOOD NEWSPAIPEB MACHINERY CORPORATION, OF NEW YORK, N. Y., A CORPORATION F VIRGINIA.

QUICK CHANGE WEB SPLIGING- DEVICE Applicationled April 10, 1930, Serial Nou-143,083. Renewed July 29, I19353.

This invention relates to the art, of splicing webs inthe printing of newspapers and in other machines which require rapid operation. 5 The principal objects of this invention are to provide limproved practical means for sup-l vide means whereby the pressure of the web,v

against the new roll is applied through and around the tension straps, thereby eliminating the necessity of lifting 'the brush out of the way before bringing-the new roll into 0 operating position against the tension belts and providing more space for installing and operating the brush mechanism 1n cases Where this invention is used in connection with a machine'embodying a brush mecha-v nism for holding Vdown the web against the new roll at the instant the pasted portion of the new roll engages the expiring web and to provide means for severing the web w1thout undue disturbance.

:o Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which Fig. 1 is an end view of a reel for web rolls and mechanism for speeding up. the fresh roll and connecting its end with the expiring web' Fig. 2 is a similarview of auportion of the same on a larger scale showing the parts in o a different position; g v

Fig. 3 is a side'or yfrontpview of the same looking in the direction of the arrow 3 in Fig. 4 is a rear elevation of the parts, partcula'rly the brush operating mechanism;

Fig. 5 is an enlarged elevation of the switch arm and connected parts as `shown in Fig. 4;

Fig. 6 is an enlarged elevation of another 53 feature shown in Fig. 4; n'

' which also passes over an idler pulle 21 ering of the two caterpillars is accomplished Fig. 7 is a view similar to Fig. Il showing the parts in the position when the expirin roll is practicallyexhausted and the fres roll is about to swing into its position.

Fig. 8 is` a'front or side -elevation of the4 tension straps with -certain parts associated therewith, and i Fig. 9 is a wiring diagram of the whole machine.

A main shaft 6 receives power from a shaft ofthe press and consequently runs in proportion to the operation of the press. This shaft by bevel gears 7 and8 operates a horizontal shaft 9 mounted on the frame of a printing machine. The shaft 9 carries pivoted on it a caterpillar arm 10, the free endof which` carries a double ended belt-carrying frame in the form of two arms 4 and 5. Thisframe is pivoted on a hollow stud 3 at the end of the arm 10. Itis driven through a sprocket 11, chain 12 passing over idlers -14 and sprocket 13. The sprocket 13 is secured or attached to a pulley 15 which in turn carries a sprocket 16 on its other end. These three elements preferably are in` one piece. A chain 17 runs over the sprockets 16 and 18, the latter being attached to a pulley19. ,This provides two points of drive for a belt 20 which is adjustable on the arm for ta g 80 up the slack. The speed of this belt 20 is proportional to the speed of the press and the parts are so designed that on contacting with the incoming roll of paper 22, this roll will be brought up to web speed preparatory z` to the splicing operation. Two such caterpillars are pivoted on the shaft 9 and either of them can be adjusted along this shaft to accommodate .paper rolls of dlfferent widths ofpa er. V

Thegeaterpillar itself shown -herein is also illustrated and claimed inthe prior application of Isidor Tomber Serial No. 264,248, filed-March 23, 1928. T e raising 'and lowdifferently however. A motor 38' is connectedl by a pinion 37 on its shaft and a gear 36 to drive a shaft 33 at reduced speed. The shaft 33 is mounted in bearings 34 and is provided -with a worm 32. This worm runs a 100 v2 l 1,591,965 Y segmental worm gear 31. The motor is designed to rotate forward and back in accordance with the control circuit of the motor shown on the diagramFig. 9 so as to run along enough only to turn the segment through the desired arc. This segment is provided with a curved slot which operates a roll 29 on an arm 28 fixed on a shaft 27. Also fixed on this'shaft is an arm 26 which is connected by a link 23 with alpin or stud 24 on the caterpillar arm 10. for raising andI lowering it.

The cooperation of the roller 29 with the lend of the slot 30 in the segment 31 lifts the caterpillar arm 10, when the segment is noved in the right hand direction. Movement of the segment-.in the left hand direction allows the `caterpillars tos descend until the weight is supported by the paper roll, at which time the arm 28 and roll 29 stop, further motion-of the segment 31 being allowed l 'by the slot 30. ` Limit switches 39 and 40 are provided to stop the segment at its twoextreines. These are connected in the control circuit of a motor 38 as will be seen on the wiring diagram.

The fresh roll 22, as well as the running roll 223,'and the spare roll -at times (not shown) are mounted on a reel 4l supported by a shaft 42. 1 This reel is run by a motor 43,

. shown' only in the wiring diagram, by any of the usual connections. Thelsevering of the web just subsequent'to pastlng 1s accom'- plished by a brake 44, the details of which and are held yieldingly by weights 48 so as to apply pressure to the web as it passes off the running or exhausted roll.v The removal or addition of some of the weights provides for varying thextension on the web.

` The shaft 46 isgprovided ,with a weighted arm 50 and also with two arms 57 near the ends carrying a shaft 68. The arms 57 and a l double arm or frame 52 at the centeriare, l keyed to the shaft68." At the bottom the arms 51 and 52 are provided with four exten'- -sions 53 pivoted to them by knee joints 54,'

so that they can swing inwardly toward the running web roll `by gravit-y, but cannot swing backwardly'past the straight line position shown in Fig. 1. -It will be seen that4 the weighted arm 50 holds this structure against the straps 49 which are directly in engagement with the four extensions 53 and l are backed up by them against the running roll 22aL to apply yielding tension thereto. These extensions lengthen out the frame 51, 52, 57 without projecting out and taking up excessive space when in operative or inoperative position. 'The several arms 51, 52 and 57 are held together to constitute a frame by the shaft 68 and rods 56 connected across the whole series.

0n the frame of the machine is pivoted an operating handle 59. This is provided with a spring-pressed detent 60 connected by a link 61 with a lever 62'which can be depressed by grasping it and holding. it toward the handle to remove thc detent from one of two notches 63 in a stationary segment 64 fixed on the frame, so that thishandle can be held in either one of two positions as indicated in Fig. 7. f

The handle 59 is mounted on a shaft 65v which has another arm 66 free on it and oonhected by a link 67 with a stud on the frame madebup of the arms 51, 52 and 57. rlhere is another arm 69 keyed to the shaft 65 having a projection engaging the arm 66 or a projection thereon which moves this arm and the frame. Consequently the operation of this handle from one position tothe other will swing this frame as indicated also in Fig. 7. lfVhen this frame is brought'back as shown in dotted lines the extensions 53 bend downl only by gravity, and swing clearc` of the tension straps, but when it is brought down to the full line position shown in that figure,

they bear on the roll 22athrough the tension Jstraps 49. u 'f' During the ordinary running of the web, the parts are in the position shown in dotted lines and are brought down to the full line position only when a paste'r is about to be made. i

It may be remarked at this point that there are two limit switches 70 and'71, the purpose of which will be described-later, which are located in stationary position with their switch arms movable by contact therewith by the operating handle 59. When the handle is in its right-hand position the switch 7() is opened by it and when the handle is in its'left-hand position the switch 71 is closed by it. 1

In the operation of this paster it is desirable to bring the incoming roll 22 up to withinl a predetermined distance from the web W beufore starting the pasting mechanism. The position at which the reel stops is determined by a switch 55. fThe. tripping of this switch is accomplished through a switch arm 91 being engaged by the oncoming roll 22.v

Thisswitch arm is secured to a rod 88 which is mounted free to oscillate in arms 51, 52 and 57. e

On the frame consisting of the arms 51, 52 and 57 are located a-` pair of electro-magnets 7'3, the plungers 74 of which are provided solenoid plungers down when the solenoids are not energized. When they are energized they pull up the shaft 76 which is mounted to extend across the frame on two bell-cranks 79. On these bell-cranks is a channel iron 80 are disconnected.

which constitutes a'support for a brush 81. This iron 80 is provided with U-shaped offset portions 89 which provide recesses to receive the arms 51 and 52 when the frame is swung forward. `The-brush 81 is made in sections to pass between the ' arms 51, 52 and 57. Obviously when the 'solenoids are operated this shaft is forced over into pasting position and drawn back when the solenids The springs, together with the brush bristles, provide for yieldingly forcing the web against the incoming roll.

The arm 52 also carries another solenoid 82 the plunger 83 of which is connected by a link 84 with a pair of bell-cranks85 and 86. f When operating with a full width web the other arm of this bell-crank 86 engages between two collars 87 fixed on the shiftable and oscillatable rod 88 and a spring 90 holds the plunger down normally and normally pushes the rod 88 to the left. The switch arm 91 is located near the end of the fresh roll 22 and this movement of the rod 88 to the left moves this switch arm 91 beyond the end of the roll. and of the web path where it will be out ofthe way.

I have shown another switch arm 92 on the same rod 88 which is used instead of the switch arm 91 when a web roll of fractional width is being used on the right hand side 0f the press.v In this case the right hand collar 87 is loosened and slipped along`the rod 88 up against the other bell-crank 85 to cooperv ate with it in conjunction with another `collar time and one of the bell-cranks 85 or 86 93. In that case the energization of the solenoid 82 moves the rod orshaft 88 to theright and moves the switch the end of the web roll. In Fig. 4. one of these switch arms is shown mounted in operativeposition extending' upwa ly from the rod 88 and the other in inopera tion extbnding downwardly.

Of course, they are not intended to be used at the same lsalways inoperative.

There is a switch 55 which controls the operation of the'solenoid82 and the closing of this switch not only moves the switch arm out of the way but also results in the stopping of the rotation of the reel by cutting out the motor 43 and sets the apparatus ready for making the pastel'.`

It will be understood that the switch arm 91 with the shaft 88 on which it is mounted is free to oscillate in the bearings of that shaft on the frame made up of the arms 51, 52 and paper roll shaft.

ive posi# 57. On this shaft 88 is secured an arm 96 having a pin 97 passing through it. This pin carries a spring 98 backed up by nuts on the pin 97. The pin passes freely through the arm 96 and is pivotally secured to a bifurcated arm 99 so that these two arms are pressed toward each other and toward a pin 100 which is mounted on the frame 52 and projects from it between these arms. The arm 99 is free to swing on the shaft 88. The action of the spring is such that when there is no pressure on the switch arm 91. or 92 as the case may be, these two arms 96 and '99 are held yieldingly against'opposite sides of the pin 100; When the incoming rollA 22 presses against the switch arms and closes the contacts in the switch 55 that controls the solenoid 82, the latter is deenergized. The spring 90 pulls down the plunger and swings the levers 85 and 86,v about their respective centers so that the shaft 88, through its collar, is pushed to the left, permitting the switch arm 91 to move clear of the web.

The operations of the brush and brake take place in conjunction with the commutators 102, one of which is fixed to the end of each The brush is brought against the fresh roll just after the paste has passed the brush.` y

The wiring diagram (Fig. 9) indicates the' reel as having a selector 116 arranged concentrically about its shaft 42 and rotating with it. and as having three arms, each one of which is provided with a commutator 102 and each with a brake coil 101. In the position shown, the new roll 22 has not quite reached the position shown in Fig. 1. and the contacts there are not completed. The commutator 102 on the upper arm, however. is connected up enough to show how the brush solenoids are brought into action and the selector 116 and the commutator on the lower armV to the right are yin position to be connected up by this selector t'o energize the brake A coil 101. arm 92 beyond The wiring system also involves three con- ,rit-actors 107 117 and 124. These numerals are used indiscriminately to indicate the respective contactors as a whole and the operating coils shown for energizing them. The contacts operated by these contactors will be described in detail in connection with the operation of the machine, but. it is to be noted that two pairs of contacts 104 and 111 of the contactor 107 are normally closed and are arranged to be opened when this contactor is energized, While the other two contacts 'are opened when it is not energized. In the other two contactors all the contacts are arranged to close when: the coil is energized. In the two motor circuits are also shown four additional contactors, the operation of which is well understood and will not be referred to further.

13olv 60 tactor until both the switch 70 and 55 are Operation As the running roll 22a becomes nearly exhausted 'and it is desirable to operate the quick change mechanism the reel 41 is substantially in the position shown in Fig. 1. Thelowering of the lcaterpillar mechanismv will bring the belt in contact with the fresh web `roll22 and bring it up to web speed. The handle 59, of course, is in its extreme right hand position, holding the limit switch 70 open. Thelatch 60 is released and the'handle turned to its left hand position as shown in Fig. 1. This movement of the handle 59 swings the frame made up of the arms 51, 52 and 57 toward the fresh roll and the projection 53 bears against the tension straps and through them against the small expiring web .roll 22a. The removal of' the handle 59 from the limit switch 70 causes that switchto close its contacts. Also when the handle reaches its' left hand position it closes the contacts in the switch 71. Two

'contacts 104 in the contactor 107 are normally closed. Therefore the closing of the two switches 70 and 71 will bring the current in from one of the mains to the other through the switch 71 and contacts 104 to .s the caterpillar'mechanism is continuously in operation at this time it will bring the fresh web roll up to speed, suilicient time having been allowed for this action to take place.

'Whenthe speed of the incoming fresh roll 22 is in synchronism with that of the web the forward button 108 of the reel moto-r is depressed. This closes a circuit connected with the reel.motor.43 and causes the reel to rotate inthe usual `direction until the fresh roll contacts with the switch arm 91 hereby closing the switch 55. The making of these contacts closes a circuit' to energize the contactor coil 107 Which action operates all the contacts of that contactor and breaks the contact at 111.` This breaks the reel motor circuit'and causes the reel to stop in the proper position. It also makes the contact 103 acting as a hold-.in for the coil 107 Aas a conopen. The contacts 113 in this contactor are 'also closed at that time which sets the device ready for pasting and the currentis then connected up to one side of each of the solenoids 73 and ready to be connected yon the other side to energize them.

It is necessary that the brush and web be brought against the fresh roll at some point other than that Where the paste is applied. This is accomplished by putting the paste on in proper relation to the contacts of the commutator '102. The closing of the contactor107 also opens the contacts 104 thereby deenergizing the solenoid 82.- This action'75 causes the rod 88 to be pushed to the left bringing the switch arm 91 beyond the end of the roll out of the way of the web.

As the commutator 102 rotates, Va segment 114 thereon makes engagement with the con- 80 tact 115, which is connected with a line operating through a selector 116 mounted on`v the shaft 42 of the reel. n this manner the contactor coil 117 is connected up so as to close the contacts 112, .118 and 119. The. contacts '85 112 being closed together at this time, make a hold-in circuit for the coil of the contactor 117. The simultaneous closing of the points 118 causes the solenoids 73 to be energized. Thus the brush 81 is oscillated against the "99 web and that'is pressed thereby against the fresh roll 22.

. `While the fresh roll is making a revolution the pasted end, of course, becomes attached to the rpnning web and takes up its course through the press therewith. The energizing of the contactor c`oil 117 of courseI closes thecOntacts 119. Thusthe current is completed through the contacts 119 to the inner contactsof -the selector 116 to put. pow- 100 er on one side of the coil 101 of thebrake 44 and`to' the outer contacts of the selector-116. After almost a complete revolution from the time the brush has been drawn in, a contactor segment 122 makes engagement with a con- 105 tact 123 connected with the coil 117Athrough the selector 116`and also energizing the coil 124 of the other' contactor..v The closing of this contactor closes thecontacts 121 foi` th'e purpose of creating ahold-in' circuit. The 110 closing of this contactor also closes the con-4 tacts 125 which, through the selector 116 puts the other side of the line in circuit with the brake. In this way the brake is 'finally set.

The function 'of the selector 116, as is ap- ,115 parent from thewiring diagram,`\is to select the proper commutator 102 for setting up the. pasting mechanism and `through which pow:- er is supplied for applying the brake. The application of the brake. stops the roll 22El 120 and by the cam action, asset forth in-my last named prior above mentioned application, simultaneously passes the knife 45 through the edge of the oldueb. In this way the old web is severedV very effectively without any 125 undue disturbance and the actual cycle of pasting is thereby completed; p

1n order to release the electrical hold-out so that the reelcan be moved into the tension straps the handle 59 is swung back to 130' its extreme right hand position. This opens both of the switches 70 and 71 and breaks two circuits completed by them." This action deenergizes all three solenoids, the 5 brake and the three contactors and permits forward or reverse operation of the reel.

The raise button 120 of the caterpillar motor is now depressed by hand causing the segment 31 to rotate in a clockwise direction l and lift the caterpillar mechanism free from the roll 22 which is now feeding paper into the press. At this point the mechanism. is in the same position' as at the beginning of the cycle and ready for continuing feeding L of the web and for repetition of the operations which have been described when this new roll is about exhausted and the reel brought around to the position corresponding to that shown in Fig. 1. In that posi- I0 tion the roll 22 comes into position of the roll 22a and a new roll 22 is in place ready for the hindle 59 to be turned to the position shown iiii that gure and for the caterpillar to drop as shown therein. There is a reverse button 130 connected up with a reversing circuit for rotating the reel backwardly whenever that has to be done, operating, of course through the reel motor 43.

It will be seen therefore that the means for bringing the fresh web roll up to web speed, the bringing of the brush up into position to press the web against the fresh web roll, the application of the brake to the ex,- piring roll and thesevering of the web are all accomplished through automatic means set into operation at different times by the motion of the operating handle 59 and the push buttons and that the operation is further automatic in that the switch arm, which is operated by the fresh roll to start some of these operations, is automatically moved out of registration with the web beyond the end of the roll by automatic means de scribed.

It will also be seen that the pressure of the web -against the fresh web roll is-applied through or between the tension straps, for it is evident that the exible bristles of a brush allow its application to the web even though the bristles be not c ut away in line with Vthe tension straps, therebyeliminating the necessity of moving the brush out of the way before bringing the fresh web roll into operating position against the tension straps; also that provision is made for bringing the new web into contact with the old one just after the pasted spot has passed and thus avoiding trouble from that operation. Furthermore, the construction is such that there is morespace for installing and operating the brush mechanism than has been the case heretofore.

It will be seen that the selector is ployedy to put .the roper commutator into the circuit for starting up the pasting mechanism and also the proper commutator to which power is supplied for braking and that no undue disturbance is created when the old web is severed; The whole thing is operated ordinarily by this operating handle and three push buttons, the fourth button being employed for emergencies when it is desired to reverse.

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 departing 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 mechanism, the combination with means for movably supporting a running roll and a fresh roll, of a set of` tension straps mounted with one end above the level of the fresh roll and extending down past the running ro'll, means for holding said vstraps with a yielding pressure against the running roll independentlyof the size of that roll, and means acting between the tension straps for forcing the web against the fresh roll to.causefit t'o be attached thereto.

v 2. In a web splicing mechanism, the combination with means for supporting the running and fresh fweb rolls, of a set of tension means located adjacent to the running web and in position to applypressure to the running web roll, of meansfor pressing the web against the freshV roll, and a .frame having arms located behind the .tension means to i back. up said means when the fresh roll is moved up into contact with the running web.

3. In a web splicing mechanism, the combination with means for supporting the web rolls, and means for guiding the web from the running roll upwardly past the`surface y I of the fresh roll, of tension devices extending from above downwardly behind the web and in contact with the running roll, means for applying tension to the tension devices,. a swinging frame comprising arms, one behind each of said tension devices to back up the devices, and means for holding the arms forward against the tension devices with a non-positive pressure.v

4. In a web splicing mechanism, the com-` bination with means for .supporting the web rolls, and means forv guiding the web from/ webagainst the fresh web roll at the proper time, whereby the fresh roll can be brought into operating position against the tension devices without lifting the brush out of the way. Y

5. In a web splicing mechanism, the combination of a set of tension straps having adjustable means for forcing them against the running roll and web with a non-positive 10 pressure, a pivoted frame having arms back of said tension straps to back them up, said arms having pivoted projections extending downwardly therefrom with a knee joint for allowing them to hang down vertically when the web roll holds the armsback of a vertical position, butpreventing the-'projections turning backwardly when the arms are hanging down vertically, so that said projections .will supply pressure to the web roll when it gets small but not when it is running with a comparatively large amount ofweb wound on it."

6. In a web splicingl mechanism, the combination of a frame mounted to depend from a pivot by gravity and having a series of arms for engaging the web, an adjustable counterweight for holding the frame yieldingly against a web roll, each arm havingv a projection thereon extending downwardly and pivoted thereto with ya knee joint, the pivot being so located above that the projection will hang d own by gravity when the frame is in inclined position but when it is in substantially vertical position will apply pressure to the nearly exhausted web roll with which they then will come into contact.

7 .y In a web splicing mechanism, the combination of a frame pivoted to depend from its pivot by gravity and having alseries of arms for engaging the web, said arms having projections thereon extending 'downwardly and pivoted thereto with knee joints, whereby they will hang down by gravity when the 'frame is ininclined position but when it is pressure to thenearly exhausted web roll; a brush pivoted on said frame for forcing 'the running webagainst the new web roll, magnetic means for swinging the brus about ,a pivot to operative position, and yielding means for normally holding it back in inoperative position. j 8. In a web splicing mechanism, the combination of a shaft, a frame having arms in position to engage the running web on the running web roll, arodlmovablymounted on said frame, a solenoid on the frame, a switch arm xedto the rod in position to be engaged by a new web roll near the end thereof, when i moving up into pasting position, means connected with said solenoid for moving said rod lon 'tudinally when the solenoid is energized an thereby moving the -switch arm beyond the end of the roll and out of the path of the t5 web, and yieldingmeans for moving the rod in `substantially vertical position will apply back to operative is deenergized.

9. In a web splicing mechanism, the combination of a frame pivoted at the top and depending by gravity and ahaving vertical arms adapted to engage the web on the running web roll, a rod movably mounted on Said frame, a switch arm fixed to the rod in position to be engaged by a new web roll when it moves up to pasting position, means for moving said rod longitudinally to move the switch arm into and out of position to engage the web roll, whereby when the web roll engages the switch arm the rod will be turned on its axis, means on the rod for opening an electric circuit when the rod is so swung, a motor connected to bodily move the running web roll and the fresh web roll, said motor beingv located in said circuit, whereby the movement of the fresh web roll into position to operate the switch arm will stop further movement of the roll at that time.

10. In a 4web splicing mechanism, the combination with a reel for supporting the web -rolls and a motor connected with the reel for rotating it, of a frame depending from above bygrjavity and adapted to engage the web and ythe running web roll, a brush mounted piv- .otally `on said frame, electro-magnetic means on the frame for swinging said brush into a position to engage the web and force it against the fresh web roll, means for swinging said frame up to a position to engage the web, and means for automatically energizing said electro-magnetic means when the frame is swung up to that position.

11. In a web splicing mechanism, the combination with a reel for supporting the web rolls, and a motor connected with the reel for rotating it, of a frame depending from above by gravity and adapted to engage the'web on the running web roll, a brush mounted pivotally on said frame, electro-magnetic means on the frame for swinging s aid brush into a position to engage ythe web and' force it against the fresh web roll, manual means for R swinging said fra-me up to a position to engage the web, means for automatically energizing said electro-magnetic means when the frame is swung up to that position, and for breaking the electric circuit to the electromagnetic 'means when the frame is moved away from that position,and)yielding means fork swinging thebrush back away from the webv whenever the electro-magnetic means is out of action. J

12. lIn a web splicingl mechanism, ,the composition when the solenoid the rod and the other free upon it, a pin I pivoted to one lever andl passing throughv bination of a frame in position to engage f the other and having a spring on the outer endpressing against said lever, and a fixed pii on the frame located between said two ro s.

13. In a web splicing mechanism, the combination of a frame pivoted at the top to hang down by gravity, a solenoid on the frame having a plunger, a bell-crank pivotally connectedwith the plunger, a spring for drawing the plunger out when the solenoid is deenergized, a longitudinally movable rod on the frame having two collars thereon engaging opposite sides of the other arm of the bell-crank, whereby the rod will be moved longitudinally in one direction when the solenoid is energized, and a switch arm on the rod located in the path of the fresh web roll -near the end thereof and adapted to be moved beyond the end of the web roll and of the web by the action of the solenoid. e

14. In a web splicing mechanism, the combination with a reel having arms for carrying a plurality of web rolls, of a motor con.

nected for operating the reel, a selector rotatable with the reel, a commutator on each arm, said commutators being rotatable with the `respective web rolls, contacts adapted to be completed by the rotation `of the commutators under certain conditions, connectionsrbetween the selector and the several commutators, whereby as the reel rotates the commutators will be brought into and out of electrical connection with a source of power, and means for pressing the web against one of the web rolls for pasting, connected with the selector in such a way as to be controlledy by the selector and one of said commutators when in a certain position.

15. In a web splicing mechanism, the combination' with a reel having arms for carrying a plurality of web rolls, bf a motor connected for operating the reel, a selector rotatable with the reel, a commutator on each arm, said commutators being rotatable with the respective web rolls, contacts in position to be completed by the rotation of the commutators under certain conditions, connections between the selector Aand the several commutators, whereby as the reel rotates the commutators will be brought into and out of electrical connection with a source of power, means for pressing the web against one of the web rolls for pasting, hand operated means for controlling the connection of the motor with a sourcey of power, and. limit switches connected to be controlled by the positionof the hand operated means for throwing the web pressing mechanism into and out of action.

16. In a 'web splicing mechanism, the combination with a reel havingarms for carry! ing a plurality of web'rolls, of a' motor connected for operating the reel, a selector rotatable with the reel, a commutator on each arm, said commutator beingrrotatable with the respective web rolls, contacts adapted to be completed by the rotation of the commutators under certain conditions, connections between -the selector and the several commutators whereby, as the reel rotates, the commutators will bebrought into' and out of electrical connection with a source of power, a brake on each arm having electrically controlled means for operating it, and connections with the selector for operating one of said brakes when its vcomlnutator is in a .pre-

determined position for applying the brake I to the expiring web roll.

17. In a web splicing machine, the combinationwith means for supporting a fresh web roll, means for propelling the web roll to rotate it up to web speed, a motor for operating said propelling means, a segment, means connected' with the motor for swinging the segment throughout an arc, a limit `switch` for cutting the motorout of the'circuit wherpthe segment has turned thrpugh a certain arc, means operated by the segment for moving the propellingdevice into or out of contact with the web roll during the motion of said segment, and means operatedindependently of the motor for continuously operating the propelling device.

18. In a propelling device for a fresh web roll, the combination with a'p-rintiing press shaft and a propelling member movable for the purpose of rotating a web roll and con'- nected with said shaftlto operate at suchy speed as to bringthe web roll up to web speed,vv

of a pivoted arm on which the propelling device'is mounted, a motor, means for connecting the motor with a source of power, a pivoted gear segment, means operated by the motor for swinging the gear segment, limit switches at the ends of the gear segment for cutting themtor out when the gear segment has swung through a certainV arc in either direction, and means movablewith the gear segment for moving said arm into or out of position for the propelling device to engage the surface of the roll.

19. In a web splicing mechanism, the combination of a shaft, a frame having arms in position. to engage the running web on the running web roll, a rod movably mounted on said frame, a switch arm fixed to-the rod in Q position to be engaged by a new web roll near 'the end thereof, when moving up into pasting position, means for moving said rod lon- 'gitudinally and therebymo'ving the switch the roll and out of the Jvertical position, but preventing the projecy tions turning 'backwardly Wherthe arms are 3hanging down vertically, so that said projections will supply pressure to the web roll when it gets small but not when it is running with a comparatively large amount'of web Wound on it.

21. In a web splicing mechanismfthe combination of tension members acting against the surface of the roll and means acting between said tension members for eiecting contact of the running Web and the reshroll.

22. In a web splicing device, the combination of a plurality of straps held yieldingly against the paper rol/1 to produce tension and means acting between the straps for eecting Contact of the running web and the fresh roll; A

In testimony Awhereof have hereunto axed mysignature.

l-HENRY Al WISE ,WOOD.

Images