US1880363A - Printing press - Google Patents

Description

Oct. 4, 1932. E. J. SMITH 1,880,353

PRINTING PRESS Original Filed July 7, 1928 2 S heets-Sheet 1 E. J SMITH PRINTING PRESS 0&4, 1932.

Original Filed July '7, 1928 2 Sheets-Sheet n J .m J 1 o M Patented Oct. 4, 1932 UNITED STATES PATENT? OFFICE ERNEST JAMES SMITH, OF LONDON, ENGLAND, ASSIGNOR TO THE GOSS PRINTING PRESS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS V PRINTING PRESS Application filed July 7, 1928, Serial No. 290,907, and in Great Britain January 13, 1928. Renewed March 3, 1932. V

' This invention relates to printing presses, the chief object being to provide improved means'for enabling the leading end of the web from a new or reserve paper supply roll to be joined to the active web of the exhausting paper supply roll without the 1 use of separate or additional pressure rollers such as have hitherto been proposed for effecting the joining of the two webs.

According to this invention means are provided for effecting contact between the new or reserve paper supply roll and the exhausting paper supply roll to cause the two paper webs to be pressed together between thesaid rolls so that by means of ad-- hesive previously applied say to the reserve web, the latter can be joined or united to the active web and drawn'by the latter into the press, whereupon the active web can be cut or severed from its reel or core to enable the supply to be drawn from the new or reserve roll; Each of the said'supply rolls may be carried on an angularly movable support 'such as a pair of angularly movable members or arms mounted on a shaft or the like and either pair of the said membersior arms as aforesaid. The supply rolls are rotatably supported by the said arms in any appropriate manner'and inone construction each pair of the supporting arms may carry rotatable spindles having bungs or the like on their inner ends for engaging with the ends of the reel or core within the paper supply roll to support the latter. One (or both) of the bung spindles of each pair may be axially movable for enabling itto be moved into and out of engagement with the said reel or core. Angular movement may be imparted to either pair of the supporting arms by means of worm gearing which may be operated by hand or otherwise and in one example a worm wheel sector is mounted on each of the shafts carrying the said supporting arms and is adapted to be engaged by a worm on an operating spindle. The operating spindles pertaining to the two sets of worm gearing may be so disposed that either can be engaged by a common operating device according to whichever of the two spindles is to be actuated. For the purpose ofcontrolling the speed of rotation of each paper supply roll, braking means may be associated with the aforesaid bung spindles which means may comprise a friction band or gripping device around a part on or of one spindle of each pair'and adapted to be actuated by hand or by automatic means which lattermay operate according to the tension on the web as the latter travels from either supply roll into the press.

In order that the said invention may be clearly understood and readily carried into seen from one side of a printing press. can be moved for example by partially ro- Figure 2 is a transverse view showing one of the paper supply rolls in its supporting arms and the actuating mechanism for movin the said arms.

Figure 3 is a plan view of the partsshown in Figure 2.

Figure l is a tran'sverse view illustrating (on a larger scale) .one pair of supporting arms on their operating shaft, one of thearms being shown in section at its upper part.

Figure 5 is a plan view of one form of side lay adjusting device. I c

Figure 6 is a detail view ofthe hand operating braking mechanism.

Figures 7 and 8 are respectively a side or a pair of angularly movable arms 3 secured on a transverse shaft 4 rotatably mounted in the side frames or members 5 of the printing press. In the example shown, each of the 5 supportingarms3 receives at its upper end a short spindle 6,the said spindlesof each pair of arms 3 being in alignment and providedat their inner ends with bungs 7 that are adapt- "ed to be fitted in the ends of the reel or core 8 on which'the paper web is mounted to form the supply roll. The said bung spindles 6 may be splined in sleeves or bushes 9 rotatably mounted in roller orother bearings 10 in the upper ends of the said arms. The spindle in one of the aforesaid arms is held against axial anovement and it is provided with awthrust .bearing 11 but the other spindle is adapted :to be axiallynioved within its sleeve 9 so that the bung 7 on the inner end thereof can be moved into engagement with one end of the reel or core when the paper supply roll 18 111 positionawith the other end of its reel or core engaged by-the bung on the spindle having thesaidthrust bearing 11. In the example .25 shown the outer end of the axially movable spindle is provided with a grooved collar 12 withwhich engage pins 13 on a leverl l whose lower end is loosely connected to the supporting arm 3 byalink 15 whilst its upper end carries a swivel sleeve 16 .or the likein 1 moved outwardlyfor withdrawing the said bung fromthe reel or core; On the transverse shaft 4 pertaining to each pair of supporting arms 3 is keyed or otherwise secured aworm wheel sector 20, which is engaged by a worm 21 mounted on a spindle 22 in suitable bearings 23 in a fixed part be secured to the frame 5, the said worm spindles 22 pertaining to the two shafts l, being in co-axial. alignment. The inner ends of the said spindles 22 are provided with bevel pinions 24 and located between these pinions is a bevel gear wheel 25 which is carried on a lever-26 pivoted at a position between its ends to the fixedframe 5a the upper end of the said lever being adapted to be secured to the fixedframe by means of a detachable pin 26a in eitherof two positions. :VVhen the pin 26a is removed, the aforesaid lever 26 can-be moved to place the bevel gear wheel 25 into engagement with either of the aforesaid bevel pinions 24 and when it is so --engaged it may be locked in engagement by lnserting the pin 26a inthe end of the lever 26 into a hole in the fixed frame 5a thus securing the lever to the said frame as aforesaid. The bevel gearwheel 25 mayzthen be rotating the aforesaid worm- 21 and impartmg angular movement to .the worm sector 20,

spindlesfi in the supporting arms 3. After.

rotated by hand or otherwise and in the example shown its spindle'or shaft 27 is adapted to receive a detachable handle 28 so that it can be rotated by hand for the purpose of the shaft 1 and the supporting arms 3. 'During the supply of the web into the press from the active-roll 1- which-'initiallyis ofthe size shown in dotted lines 1min Figure-1 and becomesreduced to the size shown at 1 in full 'lines'when approaching exhaustion the new or reservepaper supply roll may be wheeled into the press on a truck or the likeinto a position in which it can be disposed or rolled between the'arms 3 that are to support it. The arms 3'are then angularly moved to place the bungs Tinproximity to the ends of the reel or core of the supply roll and-whilst one end of the-reel or core is held against the, bung having the thrust bearing 11 the axially movable bung maybe caused to -engage wit the otherend .ofthe reel or core so that the supply roll is securely held on the rotatable the reelor core of the said; supply roll has been engaged by or. grippedbetweenthe bungs 7 the roll canbe lifted into-itsopera- -tive position by raising the supporting arms EB -which are moved as a result of rotatingthe-1 handle 28 and operating the worm 21 and the wornf sector 20 pertaining thereto. Adhesive 1nay:beapplied at or near the leading'edge of the web thereon of the new or reserve sup ply roll and the operator can rotate this, roll-.100

by hand so as to bring the part 'bearingrthe adhesiveinto posltionfor enabhng'theactlve and exhausting. web whenpressedagainst the reserve roll to be-joined tothe leading end of the reserve web. The lever 26carry- J05 ingthe aforesaid bevelgear wheel 25 may now be moved to place the latter in engage- .ment with-the bevel pinion" 2450f the worm gearing pertaining to the arms 3 carrying the active and exhausting roll 1 andby rotating the aforesaid han'dle 28 the bevel gearing and the worm gearing is operated to move the suportin armswcarr in the active and ex- P z) 7 .hausting roll 1 so asto press this roll whilst rotating againstthe' aforesaid new or reserve roll which has been placed in the operative position as aforesaid, so that the active web becomes united to-the reserve webrby the adhesive in "thelatter. The'active and 'exhausting -supply roll may bear a'gainstthe other supply roll with resilient I or yielding pressur'e'to allow: for any unevenness and for this purpose each worm21 may be so mounted on its operating spindle 22 that itcan be n1ovedagainstthe action of a spring 2 9 when eitherrollis beingpressed againstthe other but it can be-locked against such movement .by means of a pivotedslip co1lan30 that can be placed on the operatingspindle to engage with a shoulder 31 thereon and thusretain the spindle against the endwise movement as is desirable for example when raising the supply roll into the operative position. After the web from the reserve roll has been united to the active and exhausting web and is being drawn into the press and after the active web has been cut or severed from its reel or core, the reserve roll becomes the active roll and after removing the reel or core of the exhausted roll from the supporting arms 3 a new or reserve roll can be placed between these arms so as to be'secured thereto by the bungs-as aforesaid ready for the next web joining operation.

Forthe purpose of side lay adjustment each transverse shaft 4 carrying the said supporting arms 3 for the supply roll may be threaded at one end onto a rod 32 (or into a sleeve or bush) which is rotatably mounted in a fixed bar 33 and provided with a hand wheel 34 that can be rotated to impart endwise move ment to the said shaft 4 and thus adjust the lateral position of the supporting arms as required.

Oneof the two bung spindles pertaining to each supply roll may be provided with a brake for controlling the speed of rotation of the supply roll as the web is drawn therefrom into the press and the brake may comprise a split friction ring 35 or the like whichis located between the aforesaid roller bearings 10 around an enlarged part of the sleeve or bush 9 containing the bung spindle 6 and is adapted to be controlled or regulated by a hand screw 36 (seeFigures 4 and 6).

The automatic braking mechanism shown in Figures 7 and 8 is located at one side of the press and is operated according to the tension on the active web as it passes into the press from whichever of the two supply rolls is at thattime serving as the active roll. The web from either supply roll passes around a spring influenced roller 37 and also around other rollers 38 and 39 as shown in Figure 7. The roller 38 is slidably mounted in a guide 40 and is connected by a link 41 to one end of the bell crank lever 42 whose other end is connected to a link 43 that extends clownwardly and is pivotally attached to a lever 44 on a shaft 45 carrying a pulley or wheel 46 around or to which two cables 47, 47 are secured. The bell crank lever 42 is carried on shaft 42?) on which shaft is rotatably mounted a worm wheel 55 that is engaged by a worm 56 and is connected to a torsion spring 42a (see Figure 8) located around shaft 42?) so that movement of the roller 38 in its guide 40 due to the tension on the web is effected against the torsional action of this spring. Each of these cables passes around a jockey pulley 48 on an arm 49 angularly movable on the aforesaid shaft 45 whence it passes around a pulley 50 on the transverse shaft 4 having the supporting arms 3 that carry the paper supply roll. The outer extremity of each cable is connected to a bell crank lever 51 that is attached to a brake band 52-surrounding the sleeve 9 in which the bung spindle 6 is splin-ed as aforesaid. -The said released by movement of the bellcrank lever 51 due to the operation the aforesaid link and lever mechanism 41, 42 and 43 according to the tension on the web passing into the press.

brake band52 is adapted to be contracted or 73 The outer end of each of the arms 49 is slotted- F5 to provide a sliding connection for one end of a link 53wh0s-e other end is pivotally attached to a collar 54 or other part fixed on and movable with the transverse shaft 4 and the supporting arms 3. As the tension on the web passing into the press increases, the roller 38 is slidably moved in its guide 40 in a direction that causes the link 41 to move the bell crank lever 42 against the action of the torsion spring 42a for raising the link 43 and impart-112 ing angular movement to the shaft 45 and the pulley 46 with the result that the cables 47 are slackened, thus enabling the brake band 52 to be released to allow the active supply roll to rotate at a higher speed. W hen the;

tension on the web decreases, the roller 38 slidably moves in its guide 40 in the opposite direction due to the aforesaid torsion spring 42a with the result that the link and lover mechanism 41, 42 and 43 is moved in thef-i9 of the aforesaid arms 49 serves as a compenc eating device for taking up any slack in the cable 47 when the paper supply roll supporting arms 3 are angularly moved,'by reason of the aforesaid link 53 connected to the collar 54 which move with the said arms'3, angu- 0 larly displaclng the'lever 49 so as to change the position of the jockey pulley 48 thus enabling the cable to be maintained taut for any angular position of the said supporting arms link and lever mechanism 41, 42 and 43 according to the tension on the web as herein before described irrespective of the angular position of the supporting arms carrying w The torsional effect of the paper supply roll. the spring 42a can be varied according to requirements and for this purpose the worm wheel 55 which is movable with the bell crank lever 42 and is connected to the said spring I vso that .they can be operated by the aforesaid i can be rotated by the worm 56 whose spindle is provided with an operating hand wheel 56a asshown in Figure 7. Each brake band 52 may be operated by hand if desired for which purpose a hand screw 57 may be mounted so as to be connected to the bell crank lever 51 (as shown in Figure 7 for enabling the latter to contract or release the brake band when the hand screw is rotated.

Obviously, the mechanism shown in Figs. 1-3 for turning the shafts 4 may be used for turning the shafts ,4 of Figs. 7 and 8;

What I claim and desire to secure by Letters Patent of the United States is 1. lVeb roll supporting mechanism including in combination two pairs of angularly movable supporting members for carrying a pair of web rolls, means for moving the web rolls into contact with each other to jOlIl an expiring web with the reserve web roll,

and means for resiliently pressing the running web into contact with the reserve web roll. a

2. Web roll supporting mechanism including in combination angularly movable supporting members for carrying a pair of web rolls, worm gears connected with the supporting members, worms for moving the gears and web roll supporting members, and springs cooperating with the worms to provide a yielding contact between the two web rolls as they are moved into contact with each other to join the running web with the reserve web roll.

3. Web roll supporting mechanism including in combination angularly movable supporting members for carrying a pair of web rolls, worm gears connected with the supporting members, worms for moving'the gears and web roll supporting members, springs cooperating with the worms to provide a yielding contactbetween the two web rolls as they are moved into contact with each other to join the running web with the reserve we b roll, and meansfor rendering said springs inoperative. v

4. -lVeb roll supporting mechanism including in combination relatively movable means for rotatably supporting a pair of web rolls from one of which a running web is fed to a printing press, means for moving one or the rolls into contact with the other while ]O-lI1- ing the running web to the other web roll and means for resiliently pressing the expiring web roll against said other web roll.

5. Web roll supporting mechanism including in combination relatively movable means for rotatably supporting a pair of web rolls from one of which a running web is fed to a printing press, means for moving one of the rolls into contact with the other while joining the running web to the other web roll, means for resiliently pressing the expiring web roll against said "other web roll and means for tensioning the web during bodily movement ofthe web roll. 7 V r 6. VVebroll supporting mechanism including in combination relatively movable means for rotatably supporting a pair of web rolls from one of which a running web is fed to a printing press, means for moving one of the rolls into contact with the other while joining the running web to the other web roll, means for resiliently pressing the expiring web roll against said other web roll and means for maintaining constant the web ten-' sion during bodily movement of the Web roll. V

7. Web roll supporting mechanism including in combination relatively movable means for rotatably supporting a pair of web rolls from one of which a running web is fed to a printing press, means for moving one of the rolls into contact with the other while joining the running web to the other web roll,

means for resiliently pressing the expiring,

web roll against said other web roll, a pilot roller, braking mechanism'operating on the active web roll and means for connecting the roller and brake in all positions of the roll.

8. Fish roll supporting mechanism includ ing in combination relatively movable means for rotatably supporting a pair of web rolls from one of which a running web is fedtoa printing press, means for moving one of the rolls into contact with the other while join

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