US2063098A

US2063098A - Web supply mechanism

Info

Publication number: US2063098A
Application number: US709497A
Authority: US
Inventors: Albert J Horton
Original assignee: R Hoe and Co Inc
Current assignee: R Hoe and Co Inc
Priority date: 1934-02-02
Filing date: 1934-02-02
Publication date: 1936-12-08
Anticipated expiration: 1953-12-08

Description

1936- A. .J. HORTON WEB SUPPLY MECHANISM e Sheets-Sheet 1 Filed Feb. 2, 1934 iNVENTOR.

Dec. 8, 1936. A. .1. HORTON 2,063,098

WEB SUPPLY MECHANISM Filed Feb. 2, 1934 6 Sheets-Sheet 2 INVENTOR.

@edi mzz 1936- A. J. Hem-0N 2,063,098

WEB SUPPLY MECHANISM Filed Feb. 2, 1934 6 Sheets-Sheet 3 MNVENTOR.

Dec. 8, 1936. A. J. HORTON 2,053,098

WEB SUPPLY MECHANISM Filed Feb.2, 1934 6 Sheets-Sheet 4 QR MN N\\ .Q\ NW 3 T No 515M 3 m2 mw -mlm Dec. 8, 1936. A. J. HORTON WEB SUPPLY MECHANISM Filed Feb. 2, 1954 I 6 Sheets-She'et 5 INVENTOR.

mN m v MN\ w QMQ Dec. 8, 1936. A. J. HORTON WEB SUPPLY MECHANISM Filed Feb. 2, 1954 6 Sheets-Sheet 6 "l lveN-ron.

Patented Dec. 8, 1936 UNITED STATES,

WEB SUPPLY MECHANISM Albert J. Horton, White Plains, N. Y., assignor, by mesne assignments, to R. Hoe & 00., Inc., New York, N. Y., a corporation of New York Application February 2, 1934, Serial o. 709,497

4'1 Claims.

This invention relates to a web supply mechanism for a printing-machine and more particularly to a manually operated web replacement mechanism for use in joining the web of a replacement roll to the web of an expiring web roll without interfering with the continuous press operation.

One .object of the invention is to provide an im: proved means for manually moving a web deflecting and cutting mechanism, of the type disclosed in a copending application Serial No. 700,652 into a position which will cause a web pasting and cutting operation to occur.

Another object is to provide a mechanism whereby the web end of the replacement roll may be mechanically clamped to the body of said roll preparatory to making a join and means for releasing the clamp at the time a join is being made.

In regard to the latter object, which is one of o the main features of the invention, fingers have been provided which are adapted to be moved into clamped engagement with the web end of the replacement roll and rotate with the web roll when said roll is being accelerated to a speed corresponding to the speed of the running web roll. After such speed is attained and the web on the running web roll has become nearly depleted, an obstruction is moved into the path of the clamping mechanism which will cause a pro jecting member to engage same and release the said fingers from their clamped engagement with the web at the time a join is being made.

With the above and other objects not specifically referred to in view, the invention consists in certain novel arrangements and combinations which will be fully described in connection with the accompanying drawings and the novel features pointed out in the claims hereunto annexed.

Referring to the drawings: Figure 1 is a fragmentary end elevational view with a part in section, showing a web supply and web joining mechanism in a web joining and cutting position with one form of web clamping mechanism in a clamp releasing position;

Figure 2 is a view similar to Figure 1, showing a modified form of web clamping mechanism in a clamp releasing position;

v Figure 3 is an enlarged end elevational view of the web joining and cutting mechanism in' a posi tion preparatory to joining and cutting the web and includes a manual control arm for moving the said mechanismito a web joining and cutting position; v

Figure 4' is an elevational view with parts broken away and parts in 'section'of the structure shown in Figure 3; 1

Figure 5 is a fragmentary detail view of the lower end of the view shown in Figure 4 with a portion broken away to show a mounting for the cutter actuating lever and web clam-p actuating abutment for the form of clamp shown in Fig- 5 ,ure 1; V

Figure 6 is an enlarged end elevational View of the web replacement roll mounting and showing the form of web clamping mechanism which corresponds with that shown in Figure 1, in a 10 clamped position on the web replacement roll;

Figure 7 is a side elevationalview of the clamping mechanism shown in Figure 6 and also shows a portion of the roll mounting and a contact closing cam in section;

Figure 8 is a plan sectional view taken on the line 8 of Figure 6, showing a means forlocking the clamping bar in a set position;

Figure 9 is a plan view of the web clamp, shown in Figure 6, in a clamping position; 20

Figure 10 is a plan view similar to Figure 9 but showing the clamp in a released position;

Figure 11 is a longitudinal sectional view taken 'on the line H of Figure 9;

the line l2 of Figure 9;

Figure 13 is a plan sectional view taken on the line I3 of Figure )6, showing a clamping bar mounting;

Figure 1a is a side elevational view of a modified 30 form of web clamping mechanism of the type shown in Figure 2 in a clamped. position;

Figure 15 is a plan viewof the structure shown in Figure 14;

Figure 16 is an end sectional view taken along 5 the line [6 of Figure 14;

Figure 17 is a side elevational view similar to Figure 14, but showing the clamp in a released position; I

Figure 18 is 'a plan view ofthe structure with 40 the parts in the position shown in Figure 17;

Figure 19 is an end sectional view taken along the line I9 of Figure 17;

Figure 20 is a diagrammatic view of the web supply and web joining mechanism also includ- 45 ing a wiring diagram of a circuit which is used to control the final web cutting and clamp releasing operation;

Figure 21 is a diagrammatic 'view similar to Figure 20, showing a modified form of wiring ar- 50 rangement and a treadle member for actuating. the web deflecting device and Figure-22 shows a modified treadle device with a push button thereon that may be used to operate the web joining mechanism.

Referring to Figures 1 and 2, the general structure of the web supply mechanism and of the web jolningand cutting mechanism includes a web roll supporting reel 25 rotatably mounted on suitable supports 26 and having arms extending therefrom upon which web rolls are supported on short shafts or spindles 21 which engage the core of the roll, in accordance with the, general practice. Above the reel 25 is a driven belt 28 which is adapted to engage the periphery of the running web rollto drive same at a speed corresponding with the-speed of the printing machine and to accelerate, the speed of a web replacement roll-to that of the running web, when said replacement roll is moved into contact therewith, before a join is made between the running web end and' the web end of the replacement roll. In

each of the Figures 1 and 2 the reel 25 is shown with a replacement roll 29 in engagement with the belt drive and'an expiring roll 3i in a web joining position, the latter having been moved from the position which is occupied by the replacement roll, by a motor drive or any other suitable driving means (not shown).

A web Joining and cutting mechanism is shown as having been moved to a web joining and cutting position, which mechanism comprisesa web deflecting frame 32, having a brush 33- mounted thereon, and a cutter frame 34 having a cutter blade 35 mounted at the lower end thereof, each of which frames are pivotally movable preferably about the same axial center. -In the mechanism shown, the pivotal mounting for said frames includes a sleeve 35, carried by bearing brackets 31 depending from the machine frame, upon which the'cutter frame 34 is mounted. A shaft 38 is 700,652; therefore only such parts as embody features of the present invention will be described in detail in this specification.

It is to be noted that the cutter frame 34 will be maintained in a fixed position, when either in a raised or a lowered position, by means of a pawl 34a which is secured to a shaft 38 that is rotatably supported in the frame 34. The pawl is adapted to engage suitable recesses 31a 31a in the stationary supporting bracket 31, and is biased into engagement with the recesses by a spring 39a. A handle 49 secured to the shaft 38 provides means for releasing the pawl 34a.

After a running web roll 3i has been reduced nearly to exhaustion, the reel is rotated to move the running web W into the path of the web deflecting and cutting mechanism and the web replacement roll is moved into engagement with the belt mechanism 28. The web deflecting and cutting mechanism is then moved froma normal- 1y raised position to the operating position shown in Figure 3, and as soon as the running web roll reaches the point of almost complete exhaustion,

the said web deflecting and cutting mechanism;

end of the lever 39. Said plunger rod 42 is maintained in a normally raised position by means of a spring 46, compressed between a collar 41' on he link 44, and a supporting lug 43 on the leve 39, which thereby holds the upper end of engagement with the shaft 38 and will be adapt-' ed to move the said shaft to raise or lower the web deflecting frame attached thereto or to move said frame to a web Joining position.

The position shown in Figure 3 indicates the pre-joining and pre-cutting position of web deflecting and cutting frames, the frames having previously been moved there from their normal raised position. Before the final web joining and cutting operations are performed, the attendant will release theplunger rod 42 by grasping a handle formed at the lower'end of the lever 39, and the free end of the bell crank 45, to thereby rock said bell crank about its pivot, and withdraw the end of the rod'42 from a. slot 49. The

tially horizontal position (see'Figure 20) When in this latter location the lever is in a convenient position to swing the frames forward for a final web joining and cutting operation.

Another rod 52 is slidably mounted in a lug 53, projecting from the lever 39, and in the handle 5|, and has a spring 54 compressed between a collar 55 on said rodand the lug 53, which spring forces the rod 52 outward. A stop collar 56 secured to the rod 52, limits the extent of projection of the lower end of the rod 52 beyond the end of the handle 5i. A circuit'closing switch 51 is secured to the lever 39, above the rod 52,

and has a push button 58 projecting beiow same in the path of the rod 52, which button is adapted .to be engaged by the rod 52 when the said rod is pushed inward to close the switch. f

A beam 59, which supports the brush 33 and forms apart of the web deflecting frame 32, also has bearings 5| mounted at the bottom thereof, one of which bearings is shown in Figure 4. A shaft 62 is rotatably mounted in said bearings GI and has a plurality of flapper levers 63 secured thereto and properly positioned to permit operation with full length, half length or three-quarter length web rolls. A second lever 54 is also secured to the shaft 52 and a connecting link 55 is connected to the lever. 64 and to a cutter blade releasing lever 61. Said, lever 81 is secured to a shaft 68 carried in bearings 69 at the lower end of the cutter frame 34, and is adapted to rock said shaft 68 to actuate a cutter bladereleasing latch (not shown). As stated, the web deflecting frame and cutter frame are shown in a pre-joining and Dre-cutting position in Figure 3, but will have no effect upon the movement of the running web until the web deflecting frame is moved forward to bring the running web into contact with the replacement roll. Also, when said web deflecting frame is moved forward, the flapper lever will be ,moved into the path of a web clamp mechanism hereinafter described, which is rotating with the web replacement roll.

It will be observed that both the web deflecting frame 32 and the cutter frame 34 will be moved (6 as one unit from their normal or raised position to the position shown in Figure 3 and will be returned in the same manner by the manual actuation of the hand'lever 38. To assist this unison of movement, a 'rod I2 is joined to the web deflecting frame 32 and is loosely mounted in an opening in the cutter frame 34, a stop collar I8 being secured to the opposite end thereof to provide-a limiting stop but to allow suflicient movement between both of said .frames to provide means whereby the web deflecting frame may also be moved independently of the cutter'frame a limited distance. A spring I4, having one end attached to the web deflecting franie'and one end attached to the cutter frame, will hold the two frames in a definite normal relation to each other. Therefore, the' web deflecting frame,

. which is free to move, will be drawn toward the stationary cutter frame 34 by the spring 14, or

mother words, will be biased away from the running web and will remain so until it is manually moved to deflect the running web against the replacement roll, when making a web join.

In Figures 1 and 5, an arrangement is shown in which a flapper lever 63a is adjustably secured to a shaft 62a and said shaft is rotatably mounted inbearings I5 onbrackets I6,secured to the upper surface of the beam 58. An abutment bar 31 is secured to the brackets I6 and has rubber pads I8 fixed thereto, which are adapted to be engaged by the flapper lever 63a. A long connecting link 65a connects a lever 640. secured to the shaft 62a with the cutter blade releasing lever6-I just as in the structure shown in Figure 8.

It is 1 to be noted that the structure of the flapper lever 63' and mounting therefor, as shown in Figures 3 and 4 will be actuated by the web clamping mechanism shown in Figures 2 and 14 and the flapper structure shown in Figure 5 will be actuated by the clamping mechanism shown in Figures 1, 6 and 9. In the Figure 5 structure, the flapper lever 63a projects beyond the path of the web and it is therefore made adjustableon'the rod 62a to permit operation with web rolls varying in length.

Referring now to the form of clamping mechanism for holding the' web end of the web replacement roll against the periphery of "the roll as shown in Figure 1 and more clearly inFigures 6 to 13; a clamp supporting bar I8, having a scale 88 thereon, is slidably mounted within, a split end of a bracket 8| and said bracket is pivotally mounted on pins 82-82, said pins being secured within

ears

83, 83 projecting outward from a sleeve 84. Said sleeve is rotatably mounted on a collar 85, one of which is secured to the end of each arm on the reel 25, by meansof screws 86.

bracket 8|, to exert a pressure against same, whereby the upper or clamp end is normally forced away from .the web roll when the clamp is released.

The bar I8 is adapted to be clamped within the bracket 8| by means of a lever 84, which is pivotally mounted in

walls

85, 85, extendingoutwardly therefrom. The mounting for said lever 84, comprisesa stud having a square central portion 86 which is adapted to fit in a similarly shaped opening in the lever and has threaded extensions 8'I, 81 at eachside thereof, with threads of opposite hand thereon, as shown in Figure 13.

Nuts

88, 88 are fixed withinthe

walls

85, 85 and are engaged by the threaded ends of the stud; therefore, any rotation of the stud will either spread the walls 85 apart or draw them together, which condition will cause the bar I8 to be fixed when in a clamped position or movable when in an unclamped position.

A web clamping device is mounted at the upper end of the bar I8 as is clearly shown in Figures 6 and 7, also in the detailed views 9 to 12 inclusive. Said device comprises a bracket I8I, which is fixed to the top of the bar, 18 by rivets or in any other suitable manner and has a rocker plate I82 pivotally mounted around a shouldered screw I83 on the upper surface thereof. A fiat, preferably flexible, plate I84, is secured to a raised edge I85, and, as shown, has two fingers I86, I86 formed thereon, each of whichfingers may, if desired, have a friction sleeve I 81 of rubber or the like thereon.

A bolt I88 is slidably mounted within a slot I88 extending through one side of the bracket IM and is retained in position by means of a gib I I8. Said bolt has a stud screwed therein at I I I, which stud has an enlarged head portion II2, passing through a straight slotted opening H3 in the upits outward position and the flange H5 is in engagement with the groove II 6 in the stud and the entire clamp becomes one'rigid unit, but immediately after the bolt is moved inward, the stud is released and moves within the slot H4. The pressure therefore, upon the fingers I86, will be released since the rocker plate will be permitted to move upward over the upper portion of the head I I2. Upon further inward movement of the bolt, the rocker plate I82 will be swung outward by the engagement of the studhead II2 with the curved slot II4, to thereby withdraw the fingers I86 beyond the end of the web roll, the parts then being in position, shown in Figure 10. At the instant the pressure on the fingers I86 is released the spring 83 on the bracket 8| will become effective andwill swing the bracket 8| about the pivot pins 82 to thereby swing the upper end of the clamping bar I8 outward.

When setting up the above described clamping device the following operations are performed:

After a replacement 'roll is mounted on the reel 25, theciamping mechanism is arranged to first extend the fingers I86 over the end of the replacement roll, then the clamping bar I8 is forced downward within the bracket 8| to' bring the fingers I 86' into a tightly clamped engagement with the web end of the replacement roll. The

lever 84 is then actuated to rotate the screw threaded ends 8'I8'I which will clamp the bar 18 within the bracket 8| and thus leave the. clamp- I ing device in the position shown in Figures 6 and '7. This same operation will be repeated on the opposite end of the web roll, after which an adhesive will be applied to the web end of the replacement roll in any desirable manner.

After the replacement roll has been prepared in this manner,. the next operation will be to rotate with the reel. With this arrangement, the attendan't will move the reel until the pointer reaches the index line which corresponds with the position of the'scale 88 on the clamping bar, in relation to the upper edge 8| a of the bracket 8I. When the readings of the index H8 and the scale 88 correspond, the replacement roll will be in a correct relation to the. web joining mechanism.

The attendant will then bring the web deflecting and web cutting mechanism from a normally raised to the pre-joining and pre-cutting position shown in Figure3. The hand lever 39 is now returned to a horizontal position as in Figure 20 with the" rod 42 in engagement with a slot 49, and as soon as the running web roll has reached a point of almost complete exhaustion, the attendant will depress the projecting end of the rod 52 while gripping and pulling downward on the handle 5|, and move the rod 52 into contact with the button 58 to close the switch 51. Before the web deflecting frame can be moved to a web joining position by the hand lever- 39, however, the adhesive portion on the web end of the replacement roll. must be in the correct relation to the brush 33, so that at the time the brush forces the running web against the web roll, the adhesive end of the replacement roll will be approaching the brushes and when it will adhere to the running web and thereby make a web join.

To control the position of the web end of the replacement roll in relation'to the movement of the brush 33 on the Web deflecting frame 32, the

said frame 32 is maintained in a stationary position by means of a solenoid actuated latch mechanism, the location of which is indicated at II1,

' of the web is in the most desirable position to be acted upon. In Figure 6, the clamping mecha nismis shown in a vertical position on the roll and the cam ring is shown as closing the switch 92 which will cause the latch to be released. Upon the release of the latch, the attendant will then be permitted to pull the hand lever 39 downward to swing the web deflecting frame forward against the running web, in time to meet the approaching adhesive portion on the replacement roll, to make a join therewith.

In moving the web deflecting frame forward, the flapper lever 63a willmove directly into the path of the bolt I88 on the clamping device and will be engaged by same during the rotation of the web roll. I

The impact of the bolt against the flapper lever will cause two things to happen, flrst the bolt I88 will be driven inward to release the clamping fingers from their engagement with the web end of the replacement web roll and withdraw same beyond the end of the roll, and second, the flapper lever will be rocked around its-pivot, the action of which will rock the cutter blade releasing lever 61 when the connecting rod 65a,is pulled upward. This will happen immediately after the web join is made and cause the running web to be severed immediately below the join.

Another form of clamping device for clamping the web end of the replacement roll is shown in Figures 2 and 14 to 19 which comprises a bracket I2I, secured to the upper end '01 a clamp supporting bar 19a, within which a bolt I22, having a projecting head128, is slidably mounted in an opening I23 in the side thereof, said bolt being retained in the opening by means of a gib I 24. Two cam portions I25 and I26 are formed in the upper surface of the bolt. 9

A plate I21 having lugs I28 projecting from the sides thereof, is adapted to slide within grooved walls I29 of a transverse recess I3I, provided in the upper surface of the bracket I2I. Two pins I32 and I33, projecting from the lower surface of the plate I21, are adapted to engage the cam grooves I 25 and I 26 respectively in the upper surface of the bolt I22.

On the upper surface of the plate I21, a flexible plate I34 is mounted, and has flngers I35 projecting therefrom. which are adapted to be brought into clamping engagement with the web roll in a manner similar to that of the previously described clamp. Friction sleeves I36 may be supplied to provide a frictional grip on the web roll.

In operation this'form of clamp will be set up in clamped engagement 'with the web roll in a manner similar to the'previously described clamp and the bolt will be .set in its innermost position as indicated in Figures 14 and 15.

In Figures 14 to 16 the fingers are shown in a clamped engagement with the web roll. When in this position the bolt I22 is in its innermost location with the head I28 engaging a shoulder I38. on the bracket I21, and the plate I21 is in a slightly inclined position, having been rocked about the lugs I28 as a pivot, by the movement of the outer pin I33 on the raised portion of the cam surface I26. The flexible plate is therefore flexed while in the clamped position but when the bolt is kicked back by the engagement of the flapper lever with the head I28 to release the clamp, plate I21 will return to its normal flat position. Y

When a web join is to be made with the latter arrangement, the web deflecting frame is moved toward the web replacement roll, which thus moves the flapper lever 63 into the path of the projecting head I28 on the bolt I22, and when they engage, the bolt I22 is moved outward until the flapper lever 63 engages a stop-lug I31, formed at the upper endof the clamp supporting bar 19. As the bolt moves outward, the pin I33 will first move downward on the inclined cam surface I26 to release the fingers I35 from con tact with the web roll and the-pin I32 will move through the curved portion of the cam slot I25 to ixrithdraw the fingers I35 from the path of the rol It is obvious from the foregoing description of the clamps that a decided improvement has been made in the method of clamping the web end of a web replacement roll to the body thereof.

v tact rings I43 and I44, is the same as that,

Referring now to the electrical diagram, Figure 20'shows'a circuit that may be traced from oneside of the line marked (LI) through normally open switoh 51, conductor I4I, latch solenoid II1,- conductor I42, to one contact ring I43. Also from the other side of the line marked (L2) to a second contact ring I44. This will bring a source of current to the rings I43, I44 whenthe switch 51 is closed. The said rings may be mounted in any convenient manner at the axis of the reel 25 and will rotate with said reel. Brushes I40I40, joined to the lines L2 and I42, engage the contact rings I43, I44.

On each arm of the reel 25, a mercury switch I45 is mounted in such position as to close a pair of contacts I39I39 when the replacement roll is in a web joining position and is connected in series with a cam actuated switch 92. cuit which connects said switches I45 and 92 with the current supply, is traced from ring I43, through conductor I46, then through switch I45, line I41, switch 92 and line I48, to the ring I44.

Assuming that the parts are in the position shown in Figure 20 and the attendant has closed the switch 51, while pulling downward on the hand lever 39, the latch releasing solenoid II1 will then be energized as soon as the cam portion on the ring 89 engages the finger 9| to close the switch 92. Immediately upon the release of the solenoidactuated latch II1, the web'deflect- The ciring brush will be moved inward to thus move the running web against the replacement roll, and when the bolt of the web clamping mechanism engages the flapper mechanism, the web cutting mechanism will be actuated to sever the running web below the join.

In Figure 21 a foot treadle arrangement is shown for moving the web deflecting frame into a web joining position, also a modified form of electrical circuit. The treadle mechanism comprises a treadle I5I pivotally mounted on suitable bearings I52, which is connected to an arm I53, projecting from the web deflecting frame, by means of a connecting link I 54. Said arm I53 is'positioned so as to permit the web deflecting frame to be swung about its axis to "a web joining position.

The treadle is so arranged as to permit an attendant to conveniently step on same and at the same time to also permit him to press a push button I55 positioned within reach of said attendant. As shown in Figure 21, one push button I55 is shown on each arm of the reel 25 and each is wired in the electrical circuit in the same manner as the mercury switch I45 of Figure 20. The wiring arrangement from the supply through the latch releasing solenoid H1 and to the con-' previously described for Figure 21 except that the switch 51 is omitted. The circuit up to the contact rings is now a closed circuit and is completed to actuate the latch solenoid II1, when the switch 92 is closed and the push button I55 is pressed. When the said circuit is completed to provide an arrangement similar to that shown in Figure 20 by substituting a foot actuated switch closing means for the hand actuated switch 51. Said arrangement is shown clearly in Figure 22 and comprises a treadle arm I66 pivotally mounted on a support I6I, which arm has a connecting link I54a to connect same with the deflecting frame 32 as shown in Figure 21. A switch I62, mounted upon the base of the sup-- port, has an actuating lever I63 extending from one side thereof which is adapted to throw the switch from a ncrmally open to a closed position when actuated.

The means for actuating said lever I63 comprises a button I64, slidably mounted within a foot pedal I65, which button rests upon one arm I66 of a bell crank and is normally held in a raised position by the action of a spring I61 at tached to another arm I68 of said bell crank. A bar I69 has one end joined to the lower end of the arm I68 and is guided by means of the engagement of a pin I1I within a slot I12 in said bar, which directs the movement of the free end of the bar toward the switch actuating lever I63.

When operating the web deflecting and cutting mechanism with a foot treadle arrangement of the above described .type it is only necessary for an attendant to place one foot on the pedal I65, which action will closev the switch I62 through the movement of the bell crank and bar when the button I64 is forced downward. Having closed the circuit up to the switch 92 (Figure 20) in this manner, the complete closure of the circuit is efifected when the switch 92 is closed, whereupon the latch I I1 is released and the web deflector frame is swung to a web joining posi-- tion by the continued downward pressure of the attendants fc'ot upon the treadle. Upon the release of the attendants foot from the pedal I65, the button I64 and 'parts cooperating therewith will bereturned 'to their normal position by the action of the spring I61 and the switch actuatoperating upon a web drawn from a web roll, a

support having a running web roll and a replacement roll thereon, web clamping mechanism maintained in direct clamped engagement with the free end of the web of the replacement roll, and web joiningmechanism cooperatingwith said clamping mechanism to release the clamp when a web join is being made.

2. In a web supply mechanism for a machine operating upon a web drawn from a web roll, a rotatable support having a running web roll and a replacement roll thereon, web clamping mechanism having a portion thereof in direct engagement with the free end of the web of the replacement roll, joining mechanism movable to a web joining position, and means to trip the web clamping mechanism when a web join is being made.

operating upon a web drawn from a web roll, a rotatable support having a running web roll and a replacement roll thereon, means to rotate said replacement roll before making a web join, web

70 3. In a web supply mechanism for a machine operating upon a web drawn from a web roll, a

rotatable support having a running web roll and a replacement roll thereon, web clamping'mechanism having a portion thereof in direct clamping engagement with the free end of the web of the replacement roll, web deflecting and web cutting mechanism movable to a web joining and a web cutting position,- and means movable with the web deflecting mechanism to release the web clamping mechanism when a join'is being made.

5. A mechanism for holding the free end of the web of a web roll against the body thereof, comprising a movable clamping member having a contact portion adapted to be moved into clamped engagement with the free end of the web, means to lock said movable clamping member in a clamped position, and means adapted to be actuated to release said contact portion independently of the locking means.

6. The combination with a web roll of a mechanism rotatable with the roll, a clamping member projecting therefrom and movable into clamped engagement with the free end of the web of the web roll,--means for locking same in a clamped position, and other means to release said clamping member.

'7. In a web supply mechanism for a machine operating upon a web drawn from a web roll, a support having a running web roll and a replacement roll mounted thereon,- a clamping mecha-' nism rotatable with the replacement roll, a clamping portion on said mechanism adapted to be moved into direct clamped engagement with the free end of the web of the web roll, means to make a join between the web of the running web roll and the replacement roll, and means to release the clamping portion at the time a join is made.

8. In a device for clamping the free end of a web roll to the body thereof, a clamping mechanism movable with the roll and a support for same, said clamping mechanism comprising a movable clamp supporting bar positioned adjacent the end of the, roll, a projecting upper portion on said bar extending over the end of the roll and adapted to be moved into direct clampingv relation with the free end of the web of the web roll, means for locking same in a clamped position, and means cooperating with'said projecting portion to release same from a clamped position.

9. In a device for clamping the free end of the web of a web roll to the body thereof, a clamp-' ing mechanism movable with the roll and a support for said mechanism, a bracket carried by said support and having a clamping bar slidably mounted therein, a projecting portion at the upper end of said bar and movable therewith into a direct clamping engagement with the free web end of the webroll-,--means for locking said bar when the projecting portion is in a clamped position, and means for rel asing the projecting clamped portion indepe dently of the locking. means.

10. In a device for clamping the free end of the web of a web roll to the body thereof, a clampthe path of the web.

11. A device for holding the free'web end of a web roll against the body thereof, comprising a clamping mechanism positioned at each endof the web roll, each mechanism including a support rotatably movable with said roll, a clamp member connected with said support and having a movable finger portion which is adapted to engage and press'the free end of the web against the body of --the roll, and means for releasing the finof the roll.

12. A clamping structure for holding the freeweb end of a web roll intact with the body thereof, comprising a movable finger to frictionally engage the free web end of the web roll, a support for said finger manually movable to move it into a web clamping position, and a slidable member cooperating with said finger to release it from clamped position.

13. A clamping structure for'holding the-free web end of a web roll intact with the body thereof, comprising a movable member having a finger projecting therefrom and adapted to frictionally engage the free web end of the web roll, a bracket to support said movable member, and a bolt slidable within said bracket and cooperating with said movable member to release the clamping engagement of the finger with the web end and to.

withdraw same from the path of the roll.

14. A clamping structure for holding the free web end of a web roll intact with the body thereof, comprising a movable plate having a projecting portion in clamped engagement with the free web end of the web roll, a rocker arm to support said plate, a bracket movable with the roll and adapted to support said rocker arm, and a slidable bolt. cooperating with said rocker arm, whereby upon movement of the bolt in one direction the clamped engagement of the projecting portion will be released and withdrawn from the path of the web roll. v

15. A clamping structure for holding the free web end of a web roll against the body thereof, comprising a yieldable plate having a projecting portion adapted to frictionaliy engage andpress the free web end of a web roll against the body thereof, a slidable member to carry said yieldable plate and a bracket to support said slidable member, a'bolt slidably mounted in said bracket, and cam portions on said bolt adapted to'be engaged by projections on the slidable member, said web clamping position and the clamping portion thereof being releasable by the movement of the ger pressure and withdrawing same from the path clamping structure being manually movable to a web end of a web roll intact with the body portion thereof, comprising. a bracket movable with the web roll and manually movable to a web clamping position, a bolt slidably mounted within said bracket and having a stud projecting therefrom, a rocker arm pivotally mounted on said bracket and having an arcuate slot therein which is engaged by said stud, and a yieldable plate seaoeaoos therefrom by the sliding action of the bolt.

1'7. A clamping structure for holding the free web end of a web roll intact with the body portion thereof, comprising a bracket movable with the Web roll and manually movable to a web clamping position, a bolt sildably mounted within said bracket and having cam portions thereon, a plate slidably mounted, within a recess in said bracket and having pins projecting therefrom which engage the cam portions of the bolt, a yieldable member secured to said plate having a projecting I finger portion adapted to frictionally engage and hold the free web end of the web roll intact with the body portionthe'reof, and to be released therefrom by the sliding action of the bolt.

18. In a web supply mechanism for a machine operating upon a web, a support having a running web roll and replacement roll thereon and movable to bring the replacement roll into a web feeding position, means to accelerate the replacement roll, a manually movable web clamping mechanism positioned at the end of the web replacement roll and rotatable therewith, a projecting finger portion on said clamping mechanism to engage the free end of the web and hold same in clamped contact with the body of the roll, a slidable bolt cooperating with said projecting finger portion, a web joining mechanism adapted to move the running web into engagement with the peripheral surface of the replacement roll to thereby join same with an adhesive portion thereon, and means movable into the path of the sliding bolt to move same and release the projecting finger portion of the clamp at the time a join is being made.

19. In a web supply mechanism for a machine operating upon a web, a support having a running web roll and replacement roll thereon and movable to bring the replacement roll into a web supply position, means to accelerate the replacement roll, a manually movable web clamping mechanism positioned at the end of the replacement roll and rotatable therewith, a projecting finger portion on said clamping mechanism to engage the free end of the web and hold same in a clamped contact with the body 'of the roll, a slidable bolt cooperating-with said projecting finger portion, a web deflecting mechanism manually movable to press the running web against the peripheral surface of the replacement roll to thereby oin same with an adhesive portion thereon, a web cutting mechanism, a projecting member movable with said web deflecting mechanism into the path of said bolt; and a link between said projecting member and web cutting mechanism, whereby upon engagement of the bolt with said projecting member, the finger clamping portion is released and the cutting mechanism is actuated.

20. In a web supply mechanism for a machine operating upon a web, a support having a running web roll and a replacement roll mounted thereon, a web joining mechanism comprising a pivotally mounted web deflecting frame and a web cutting frame normally positioned in nonoperative position and movable simultaneou'ly to a pre-joining position, a hand lever to mi ve said framea'means to limit the movement of the web cutting frame, and a latch means to hold the web deflecting frame fixed to the webcutting frame, a solenoid actuated means to release same. 5

said latch, an electric circuit to energize said solenoid, a manually actuated switch on the hand lever and a cam actuated switch operable by a rotation of the replacement-roll, whereby said electric circuit is closed when both the manually actuated switch and cam switch are closed.

21. In a web supply mechanism for a machine operating upon a web, a support having a running web roll and a replacement roll mounted thereon, aweb' joining mechanism comprising a pivotally mounted web deflecting frame and a 'web cutting frame normally positioned in, nonoperative position and. movable simultaneously to a pre-joining position, a treadle actuated means to move said frames, means to limit the movement of the web cutting. frame and a latch means to hold the web deflecting frame fixed to the web cutting frame, a solenoid actuated means to release said latch, an electric circuit to energize said solenoid, a manually actuated switch, a cam actuated switch operable by the rotation of the replacement roll, whereby said electric circuit is closed when both the manually actuated switch and cam switch are closed, which will thereby energize the solenoid and release the web deflecting frame for movement by the treadle to a web joining position.

- 22. In a web supply mechanism for a machine operating upon a web, means for moving a running web roll and a replacement roll to a position in which the web of a running web roll can be moved against an adhesive on the periphery of the replacement roll, a manually 0perated web deflecting means, an electrically operated latch to normally hold said web deflecting means away from the running web, and an electrically operated timing means cooperating with said'latch to actuate same and to permit operation of the web deflecting means.

23. In a web supply mechanism for a machine operating upon a web, a support having a running web roll and a replacement roll mounted thereon and movable to bring the web of the latch releasing circuit whereby said web deflectmanual means to move said web deflecting mechanism to press the web of the running roll against an adhesive portion on the web end of the replacement roll to make a join between same. a

24.. In a web supply mechanism for a machine operating upon a web, a support having a running' web roll and a replacement roll mounted thereon and movable to bring the web of the ing mechanism is adapted to be released, and

running roll into a position for making a web join, a web deflecting mechanism normally'biased away from the web of the running rollfmanually actuated means to move said web deflecting mechanism, an electrically actuated latch to retain the web.defl ecting mechanism in a fixed.

position, a manually controlledswitch' and an intermittently closed timing switch connected in the latch releasing circuit to release the latch and permit the web deflecting mechanism to be moved to press the web of the running roll against an adhesive portion on the'web end of the replacement roll tomake a join between 25. In a web supply mechanism, a rotatable reel having a running web roll and a web replacement roll mounted thereon, a support for said reel, a web joining mechanism, a member rotatable with the replacement roll, a scale on said-member to provide a reading relative to the diameter of the roll, a pointer rotatable with the reel and an index cooperating therewith, which reel index and scale are so related that acorresponding reading on 'both will indicate the correct position for the replacement roll in relation to the web joining mechanism.

26. In a web supply mechanism, a rotatable reel having a running web roll and a web replacement roll mounted thereon, a support for said reel, a web joining mechanism, clamping mechanism for holding the free. web end of the replacement roll intact with the body thereof, a scale and indicator cooperating with said-clamping mechanism, and an index and indicator cooperating with the reel, said scale and index having corresponding readings whereby upon movement of the reel to a web joining position, the correctness of said position in relation to the web joining mechanism will be determined by the corresponding relation of readings of the scale and index.

27. In a web supply mechanism, a rotatable reel having a running web roll and a replacement web roll mounted thereon, a support for said reel, a web joining mechanism, clamping mechanism for holding the free web end of the replacement web roll in contact with the body thereof, a slidable clamp supporting bar having a scale thereon and an indicating means co operating therewith, and an index and a second indicating means cooperating with the reel, said scale and second indicating means having similar readings, whereby when the reel is turned to the proper position for making a web join, the

readings of both indicating means will agree and constitute an indication of such tioning. I

'28. In a web supply mechanism for a machine operating upon. a web, a support having a running web roll and a replacement roll mounted thereon and movable to bring the replacement roll into close proximity with the web of the running web roll, a web joining mechanism normally biased away from the running web, a latch to maintain same in saidbiased position, electroproper posimagneticzadly operated means to release said latch, a treadle actuated member adapted to move the web joining mechanism to a joining position, a switch in the magnet circuit adapted to be closed when the treadle is engaged by an attendant's foot and a timing means to complete the circuit, whereby the latch is released and the web joining mechanism is actuated by a continued' pressure of the attendants foot upon the treadle.

- 29. In a web joining mechanism for a printing machine, a web deflecting member adapted to move a running web into web-joining engage- 'ment with a replacement web roll, '.manually operated means to operate said web joining mechanism, electrically actuated means to normally hold the 'web deflecting mechanism away from the running web, anautomatically actuated switch, and /a manually controlled switch to close a circuit to the electrically actuated means, whereby the web deflecting member 'is released and the manually operated-means becomes eifective to make a "web join. I

30. In a web joining mechanism for a printing machine, a web deflecting member adapted to move a running web into web joining engagement with a replacement web roll, a treadle to operate said web, joining mechanism, electrically actuated means to normally hold the web deflecting mechanism away from the running web, an automatically actuated switch and a manually controlled switch to close a circuit to the electrically actuated means, the manually controlled switch comprising a button on the treadle movable when the treadle is engaged by an attendants foot, and a mechanism actuated thereby to close said switch, whereby the web deflecting member is released and the treadle becomes effective to make a join.

31. A clamping mechanism for holding the free web end of a web roll against the body thereof, inchiding a clamping member movable axialiv with respect to the web roll into direct clamping relation with the free end of the web, and means operably associated with said clamping member to release same.

32. A clamping mechanism for holding the free end of a web roll against the body thereof, including a clamping member movable into direct clamping engagement with the tree end or the web, and a latch member associated with said clamping member adapted to be tripped to release the clamping member.

33. A mechanism for holding the free web end of a web roll against the body thereof, comprising a clamping member positioned at the end of a web roll, a contact portion projecting over the end of the roll and adapted to be moved into clamping engagement with the free end of the clamp releasing member associated with said clamping member, andv means movable into the path of the clamp releasing member to release 1.

said clamping member.

35. In a web supply mechanism for a machiiie operating upon a web, a support having a running web roll and a replacement roll thereon, web clamping mechanism having a portion there, of in direct engagement with the free web end of the replacement roll and adapted to hold said end intact with the bodyot the roll, clamp'releasing means, web joining mechanism arrangedto move the running web against the replace.-

.ment roll to make a web join, and means on said web joining mechanism to trip said clamp releasing means and thereby release the free end of the web when a join is made. 1

36. In a web supply mechanism for a machine operating upon a web, a support having a run ning web roll and a replacement roll thereon,

web clamping mechanism having a portion there'- of in direct engagement with the free web and of the replacement roll and adapted to hold said end intact with the body org/the roll, clamp releasing means, web joining mechanism arranged to move the running web against the replacement roll to make a-web join, a web cutting member, and means 'on said web joining 'mechanism to trip said clamp releasing means and to actuate said 'web cutting member when a web join is made. g

37. In a web supply mechanism for a machine operating upon a web, asupport having a running web roll and a replacement roll thereon,

means to deflect the web oi the running web roll against an adhesive portion on the replacement roll, including a pivotally mounted web deflecting member capable of being moved from a nonoperative to an operative position, a hand lever freely rotatable on the pivotal axis of the web de-.

operating upon a web, a support having a. running web roll and a replacement roll thereon, means to deflect the web of the running web roll against an adhesive portion on the replacement roll to make a web join, including a web deflecting member arranged in a normal pre-joining position, a foot treadle connected .with said web deflecting member to -move same to a web joining position, releasablelatching means to normally maintain said web deflecting member in prejoining position, and means associated with and operable upon actuation of said foot treadle to release said latching means and thereby permit said foot treadle to move said web deflecting member.

.39. In a web supply mechanism for a machine I operating upon a web, a support having a running web roll and a replacement roll thereon, meansto deflect the web of the running web roll against an adhesive portion on the replacement 'roll to make a web join, including a webdeflecting member arranged in a normal pre-joining position, a hand lever associated with said web deflecting. member and adapted to move same, latching means to normally maintain said web deflecting member in a pre-joining position, and manually controlled means cooperating with said hand lever to release said latching means and thereby permit the web deflecting'member to be moved to a web joining position.

40. In a web supply mechanism for a machine operating upon a web, a support having a running web roll and a replacement roll thereon, means to deflect the web of the running web roll against an adhesive portion on. the replacement roll to make a web join, including a web deflecting member arranged in a normal pre-joining position, a foot treadle associated with said web deflecting member and-adapted to movesame,

latching means to normally" maintain said web deflecting member in a pre-joining position, and manually controlled means cooperating with said foot treadle to release said latching means and thereby permit the webdeflecting member to be moved to a'web. joining position.

41-. In a web joining mechanism, the combination withmeans for supporting a running web roll and a replacement roll, means to accelerate the replacement roll to the speed of the runningweb, a web deflecting member, means to normally bias said web deflecting member away from the running weblmeans to actuate said web de- 7 aforesaid web. 2.

operating with said web deflecting member, and means-to actuate said latch before a 16in is made, 42. In a web supply mechanism for a machine operating upon a-web, a'support having a running web roll and a replacement roll thereon, a web deflecting member to move the running web against the replacement roll, manually actuated means to move said web deflecting member. a latch member to normally prevent moving said web deflector, and means controlled from said manually actuated means to release said latch.

43. In a web supply mechanism for a machine operating upon a web, a support having a running web roll and a replacement roll thereon, a web deflecting member to move the rimning web against the replacement roll, manually actuated means to move said web deflecting member, a latch member to normally prevent moving said web deflecting member, an electromagnet' to release said latch, and a switch member operable from said manually actuated means to close an electrical circuit and thereby energize said magnet.

44. In a web supply mechanism, a rotatable reel having a web roll and a web replacement roll mounted thereon, a support for the reel, a reel 'scale on the support, a web joining mechanism,

having a roll scale thereon toprovide a;reading relative to therliameter oi the roll, and means rotatable with said reel and cooperating with said reel scale, whereby the desired movement or the replacement roll witnrespect to the web joining mechanism may be determined.

45. In a, web supply mechanism for a-machine operating upon a web, a support having a 'running-web roll and a replacement rollthereon, web clamping mechanism for clam ing the free end of the web 0! the replacement 11 to the body thereof, web Joining mechanism including a web deflector and a web cutting member, means to release the web clamping mechanism when the web: joining niech nism is moved to make a web join, and means whereby the cutting member is actuated by the clamp releasing means.

' 46. In' a web supply mechanism,v a rotatable reel having a web rollthereon, a pointer rotatable Y with said reel, and ascale having indicia thereon. corresponding to various roll diameters mounted on a stationary part and cooperating with said a web rollthereon, said reel being rotatable to, .1

dispose said web roll-inspaced relation with the web or a web expiring roll, and means to indicate the stop position for said reel tospace rolls or. different diameters 'in a relation to the J. non-sou.

pointer to indicate the amount ot-reel rotative uired to locate the periphery of, a