US1945136A

US1945136A - Web tension mechanism for printing presses

Info

Publication number: US1945136A
Application number: US473543A
Authority: US
Inventors: Allan J Cline
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-08-07
Filing date: 1930-08-07
Publication date: 1934-01-30
Anticipated expiration: 1951-01-30

Description

6 Sheets-Sheet lili-,

I |||Il III 1li vl A. J. CLINE Filled Aug. 7, '1930 WEB TENSION IECHANISM FR PRINTING 'PRESSES Jan. 30, 1934.

1m30, 1934. A. J. CLINE 1,945,136

WEB TENSION IECHANISPI FOR. lPRINTING PRESSES Filed Aug. 7. 1930 6 sheets-sheet v2 Jan'. 30, 1934. A J, cLlNE 1,945,136

WEB TENSION HECHANISM FOR PRINTING PRESSES Filed Aug. '7, 1930 6 sheets-sheet s' Jam 3o, 1934.- A. J. CLINE 1,945,136

, wBB TENSION -uEcHANIsu FOR PRINTING PRESSES Filed Aug. 7, 1930 e sheets-sheet 4 Jan. 30, 1934. A. J. CLINE 1,945,136

y WEB TENSION HECHANISM FOR PRINTING PRESSES Filed Aug. '7, 1930 e sheets-sheet 5 AJan. 30,1934. l A. .1.l CLINE 1,945,136

WEB TENSION IIECHANISM FOR PRINTING PRESYSES Patented Jan. 30, 193.4

WEB TENSION MECHANISM FOR PRINTING PRESSES Allan J. Cline, Chicago, Ill.

Application August '1,- 1930. Serial No.v 473,543

` zo claims.

This invention relatesto printing presses and particularly to tension mechanism for controlling the travel of the web into the press.

In modern practice, particularly in newspaper work, the printing is done on a large scale by the vuse of the so-called unit type press which consists of a series 'of individual printing units arranged in aline with folders interspersed at suitable intervals along the line of press units. The

paper is drawn into the press from supply rolls which are usually located below the press room floor, the paper being taken from the rolls up through the oor tothe printing cylinders. In order to assure a continuous supply of paper to the press the rolls-of 'paper are mounted on reels which aiord free rotational support both for the roll from which the web is being drawn and for one or more spare rolls which are successively broughtinto running position by turningv of the reel, the press being slowed down or stopped during the change interval to permit the pasting together of the web from the expired roll and the web -of the fresh roll. Each reel is also ordinarily provided with a tension mechanism for control-` ling the travelof the web from the roll into the press. The .tension mechanism may consist of a series of straps positioned to engage the periph- `eral face of the roll of paper from which the web is beingdrawn. In the various forms of tension mechanism which have heretofore been used the straps are supported in xed position relative .to the reel, so that as the roll of paper becomes depleted it is necessary to turn the reel at frequent intervals to keep the roll in full engagement with the straps.

v An important object of my invention is to provide av novel reel and tension construction-which is self contained in the sense that the tension mechanism is supported, upon and is rotatable with the reel,l thereby always maintaining the tension straps-in full contact with the face of theroll without requiring movement of the reel as the 4rollv becomes-depleted.

Another object of my invention is to provide a tension mechanism in which the tension straps are positioned between the reel shaft and the rolls, the inner ends of the straps being held in fixed position relative to the reel and the outer ends of the straps being supported to swing inwardly toward the face of the roll as the web is withdrawn.

Another object of my invention is to provide a strap' tension device which will permit the web to be drawn up to the press, as for example, when a break`occurs, without requiring change in the position of the reel, the straps being movable out of contact with the roll without rotation of the reel.

Another object of my invention is to provide a strap tension device in which no tension is applied to the fresh roll which is being placed upon the reel thereby allowing free turning of the fresh roll into position preparatory to the making of the paster. f

Another object of my invention is to provide means for automatically drawing the tension 05 straps or belts against the'faceof the roll to per-l mit definite control of the tension applied vto the roll as the web is being drawn therefrom.

Further objects and advantages of the invention will be apparent as I proceed with my specication, which. taken in connection with the accompanying drawings, discloses a preferred embodiment thereof. A

Referring to the drawings: f' l' Fig. 1 is a front elevational view of the com- 75 bined reel and strap tension mechanism;

Fig. 2 is an end view of the same viewed from; the left of Fig..1;

Fig. 3 is a transverse `section through the reel and tension mechanism taken .on the line 3-3 8 ofFig. 1;

Fig. 4 is a broken sectional view, taken substantially on the line 4 4 of Fig. 3; v v

Figs. 5-9 are diagrammatic views showing the cycle of operation of the reel and tension mechanism from a point where two full rolls are located on the reel to the point where a paster is made, and thence to a point where the second full size roll is in operation and the reel is positioned for the loading of another roll; and

Fig. 10 is a broken section showing the re rotating mechanism, the section being taken on the line 10-10 of Fig. l.

Referring in detail to the drawings, and particularly to Figs. 1 and 2, the reel for supporting the 95 rolls of paper 11 and 12 comprises; a central supporting shaftor axle 13, the opposite ends' of which are journaled in bearing supporting brackets 14 and 15, carried by the

press columns

16 and 17, respectively; and a pair of spider mem- 100

bers

18 and 19 positioned on the shaft 13 between the bearing supporting brackets 14 and 15. The spider 19 is provided with a pair 0f opposed arms 21 and 22 which extend radially from the hub portion of the spider, and the spider 18 is 105 similarly provided with radially extending arms 23 and 24. The arms 21 and 22 of the spider 19 are provided at their outer ends with stationary chucks or

spindles

25 and 26, respectively, and the arms 23 and 24 of the spider 18 are provided 2, the web being taken from the upper roll 11 around a spring roller 29, and thence up to the press cylinders. 'Ihe spiders 18 and 19'are keyed to turn with the reel axle 13 and are adjustable thereon to accommodate various lengths of rolls.

Referring to Figs. 1, 2 and 10, the reel is turned about the central shaft 13 to successively bring the rolls into running position by means of a mot r 31 which is supported on a .bracket 32 carried by the prese column 17'. The motor 31 is operatively connected to the reel axle 13 through a "gear train consisting of a pinion 33 carried by the armature shaft of the motor 31, a pinion 34 carried on a stub shaft 35, and a spur gear 36 which iacarriedon a worm drive shaft 37, the shaftv 37 being journaled in the bracket support 32. This train of gears is connected to the reel shaft l13 through afworm gear 38 carried on the shaft 37 which drives a second train of gears contained in a gear yhousing 39`but not shown in detail in the drawings. This second train of gears drives a large spurgear'mot shown) carried by the end of the reel shaft 13 and enclosed in a housing 41 which is supported upon the bracket 32. The motor 31 thus has direct driving connection with. the reel shaft 13 to provide means for turning thereel to move the rolls to and from running position.

The reel, including the main shaft 13 and the

spiders

18 and 19, may be shifted transversely by means of ainotor 42 which is supported upon the bearing supporting member 14. The armature shaft of the motor 42 is geared in a well known manner to the reel shaft 13iand moves the entire reel as a unittiansversely in the bearing supports 14 and 15 to provide for' marginal adjustment of the web.

Referring to Figs; 1,-4.- the tension mechanism which cooperates with the reel to control the pasmge of he web from'- the roll into the press comprises; a' pair of end' plates 43 and 44 carried by the shaft 13 and provided on opposite sides of said shaft with opposed pairs of arms 45 and 46;

drum shafts

47 and 48 ,extending transversely of the reel between the outer free ends of the arms 45 and 46;

yoke support members

49 and 51 pivotally mounted'at their inner ends on the shafts 47 and 48./respectively;ahd tension straps or

belts

52 and 53 for engaging the rolls 11 and 12, respectively. I c

The hubs offthe end plates 43 and 44 are keyed to the reel axle by keys 40 so that the end plates, together

withlthe drum shafts

47 and 48,v turn as a unit with the-

reel spiders

18 and 19 and J[he reel shaft 13,the position of the plates 43 and 44 relative to the roll supporting :

spiders

18 and 19 being independent of the rotational movement of the reel. The plates 43 and 44 and the

drum shafts

47 and 48 do not, however, move tra'nsversely with the reel under the action of motor 42, the keys 40 sliding in their keyways to allow transverse Ashifting of the reel shaft relative to the end plates 43.and 44.

The

yoke support members

49 and 51 `are simi- 'I'he side arms are bent inwardly near their outer free ends as indicated at 56 to bring the cross members 55 near the face of the adjacent roll lof paper. The inner ends of the side arms 54 are threaded into pipe fittings 57 which are provided with bearings 58 to afford free pivolal movement of the yokes on the

drum shafts

47 and 48. The fittings 57 are provided opposite the arms 54 with counterweights 59 for balancing the yokes on the drum shafts. The counterweights 59 are provided with laterally extending stop arms 61 (Fig. 3)v which engage against the arms 45 and 46 of the end plates 43 and 44 to limit the outward swing of the yokes on the drum shafts 47 and 48: The outer free ends of the end plates 43 and 44 are tied together by stifening bars 60 which together with the end plates form a rigid frame for supporLing the

yokes

49 and 51.

Referring to Figs. 3 and 4, the tension straps 52 and 53 are individualized to the rolls 11 and 12, respectively, and are arranged to be drawn inwardly against the face of the roll to provide uniform tension on the roll as it diminishes in size. The straps 52, which in the embodiment shown are four in number, are arranged in uniform spaced relation across the Width of l[he roll 11, and are yieldingly connected at their outer ends to the cross arm 55 by coil springs 62. The inner ends of the straps 52 are secured to take-up drums 63 carried by the drum shaft 48. In passing from the drums 63 to the cross member 55 the straps l 52, this take-up action serving to swing the'yoke 49 toward the core of the roll, as shown by the dotted lines in Fig. 3. The tension straps 53, which engage the face of the roll 12, are yieldingly connected at their outer ends to the cross member 55 of the yoke 51 by means of coil springs 64, and are connected at their inner ends to the drums 63 on the drum shaft 48. The straps 53 pass from therdrums 63 over idler drums 65 carried on the drum shaft 47, and thence overthe face of the roll 12 to the points of connection with the springs 64. The

straps

52 and 53 are Wound up in opposite .directions on the take-up drums 63 so that when the drum shaft 48 is turned to draw the straps 52 against the roll 11 the straps 53 are released from the roll 12. In the normal operating position, as shown in Fig. 2, the straps 52 are held against the face of the roll 11 from which the web is being drawn and the s'. raps 53 are loose on the roll 12.

The tension mechanism includes means for turning the drum shaft 48 ,to automatically control the action of the tension straps on therolls..

Referring to Figs. 1, 2' and 4,'thisl mechanism the gear wheel 69. A` chain 72 takes over the 7 sprocket wheel 67 and over a small sprocket wheel Yon the armature shaft ofthe motor 66 to afford a driving connection between the motor 66and the drum shaft 48. The sleeve 68 is mounted for free rotation on the reel shaft 13 by means of roller bearings 73. 'Ihe sprocket 67 is connected to the sleeve 68 by bolts 74, and the gear wheel 69 may be formed as an integral part of the sleeve 68.'

It will be apparent that as4 the torque motor turns the drum shaft 48 will likewise be turned to'draw up either the

straps

52 or 53 depending upon the direction in which the motor is run. Since the straps are wound in opposite directions on the take-up drum 63, turning of the shaft 4.8 eiects both the release ofthe straps from one roll and the taking up of the straps on the other roll. The torque motor is connected in circuit with the press so that as the press slows down the motor augomatieally exerts an increased pull on the straps engaging the roll being unwound, and when the press stops a still greater` pull is exerted on the straps to prevent over-run of the roll. The torque motor is also connected to a rheostat on the press for adjusting the current through the motor to vary the tension as desired. If the web happens to break during a run of the press the current to the torque motor may be out off by a suitable switch which immediately releases the straps from the roll. This allows the roll to be freely rotated to permit the web to be threaded up to the press without the need of turning the reel to remove the roll from engagement with the siraps.

The operation of the reel and tension mechanism is shown in Figs. 5-9 to which reference is now had.. In Fig. 5 the reel is shown in the normal operating position with two full rolls mounted thereon and with the web being drawn from roll ll over the spring roller 29 up to the press. The straps 52 are drawn against the face of the roll 11 and the straps 53 are slack on the roll 12. The direction of rotation ofgjroll 11 is clockwise, as indicated by the `arrow',}. `and the normal direction of rotation of the reel is in a counter-clockwise direction, although the reel may be turned in either direction if desired. Fig. 6 represents the same relative position ofthe parts as Fig. 5 with the djrence that the roll 11 is nearly depleted and t e yoke 49 has followed inwardly toward the core due to the takeup of the straps 52by the torque motor 66. In Fig. 7 the roll 11 is about to expire and the reel has been turned by the motor 31 approximately 90 degrees in a counter-clockwise direction to bring the full'roll 12 toward running position. In this gure the straps 52 are still held against the core of the roll 11 and the straps 53 are slack on the roll 12.1 In Fig. 8 is shown the position to which the reel is turned to make the past'er. In this figure the full roll 12 has been raised to engage the expiring web of roll l1 and the press has been .either slowed down or stopped to allow the webs to be pasted together. In this position the straps 53 are still loose on the roll 12 so that no tension is exerted on this roll to prevent easy turning of the roll as the press is speeded up. Immediately after the pasterl is-made the direction of rotation of the torque motor 66 is reversed and the straps 53 are drawn against the full roll 12 which has now been moved into running position, The tightening up of the straps 53 occurs immediately following the release of the straps 52 fnm the' core .of the expired roll l1. In Fig. 9 the reel is shown in position 'for the loading of a new roll to take the place of expired roll 11, the core of which has been removed. In

this position the reel is turned slightly beyond the f normal running position so as to bring the

chucks

25 and 27 into position for receiving the next full roll. As soon as the new roll is secured in position the reel is again turned back to assume the vertical position shown in Fig. 5.

.i While I have ,shown the use of a torque motor for controlling the take-up drums the same effect could be obtained by employing other means such as weights, for example, to turn the take-up drum shafts. The advantage of using a torque motor is that the operation is automatic and the degree tion of the reel spiders to automatically release the straps from the core of the expired roll and draw the straps against the face of the succeeding full roll. If desired, a single wide strap may be used instead of a series of narrow width tension straps.

The invention greatly simplifies the work of the pressmen in controlling the passage of the web into the press. The position of the straps relativey to the rolls is independent of the rotational movement of the reel'and therefore it is not necessary for the pressmen to keep turning the reel at frequent intervals to keep the straps against the face of the expiring roll. The torque motor draws the strap supporting yokes inwardly as the roll diminishes in size and maintains full engagement betwen the straps and the face of the roll until the core is'reached. If a break occurs the straps may be at once released and a new web may be threadedinto the press without the need of turning the reel to get the roll away from the straps. The invention also simples the work of installation inasmuch as the reel and tension mechanism are assembled as a single unit and may be installed as such without danger of their not being in proper relation to one another.

While I have shown the invention as applied to a two arm reel it will be apparent that it is equally Well adapted for any multiple arm reel. Also the reels may be supported either from the press columns, as in the embodiment shown, or may be mounted upon separate pedestal supports.

The foregoing detailed description has lbeen given for clearness of understanding only, and no .unnecessary limitations should be understood therefrom, but the appended claims should be construed as broadly as permissible in view of the prior art.

What I regard as newand desire to secure by Letters Patent is;

l. In a web supply mechanism for printing presses the combination of a rotatable support for a running roll and a spare roll whereby said rolls may be revolved about the axis of the support, and strap tension mechanism for controlling the travel of the web from the rol?. into the press,'said mechanism being supported upon and movable with the roll 'supporting means and including means for causing the tension to be released from` one 'of said rolls when appliedto the other. g

2|. In a web supplyA mechanism for printing presses the combination of a reel provided with means for rotatably supporting a' running roll and a spare roll, and strap tension mechanism for controlling the travel of the web from the roll into the press, saidl mechanism being supported upon the reel and movable therewith when the reel is turned and including wmeansfor causing the tension to be released from one of said rolls when applied to the other, the position of the straps relative to the rolls being independent of the rotational movement of the reel.

3. A web supply mechanism for printing presses comprising, in combination, a reel provided with means for rotatably supporting a running roll and a spare roll, strap tension mechanism for controlling the travel of the web from the roll into the press, said mechanism being supported upon the reel and movable therewith when the reel is turned and'including means for causing the tension to be released from one of said rolls when applied to the other, the position of the tension straps relative to the rolls being independent of Vthe rotational movement of the reel, and means for drawing the straps inwardly against the face of the roll during the withdrawal of the web therefrom.

4. A web supply mechanism for printing presses comprising, in combination, a reel provided with means for rotatably supporting a running roll and a spare roll, strap tension mechanism for controlling the travel of the web from the roll into the'press, said mechanism being supported upon the reel and movable therewith when the reel is turned and including means for causing the tension to'be released from one of said rolls when applied to the other, the position of the tension straps relative to the rolls being -independent of the rotational movement of the reel; and means including a torque motor for drawing the straps inwardly against the face of the roll during the withdrawal of the web therefrom.

5. A web supply mechanism for printing presses comprising, in combination, a reel provided' with means for rotatablysuppo'rting a running roll and a spare roll, and strap tension mechanism for controlling the travel of the web from the roll into the press, said mechanism'incl'uding a separate series of tension straps-for each roll of paper and means for causingv the tension to'be released from one of said rolls when 'applied to the other, said straps being .movable with the rolls when the reel, .is turned.

6. A web supply mechanism for printing 'presses comprising, in combination, a reel provided with means for rotatably supporting a running roll and a spareI roll, strap tension mechanism for controlling the travel of the web from the roll into the press, 'said mechanism including a separate series of tension straps for each roll of paper, said straps being movable with the rolls l Awhen the reel is turnedjand including means for causing the Atension to be released from one of said rolls when applied to the other, andmeans and means for causing the tension to be released from one of said rolls when applied to the other,

said straps being movable with the rolls when the support is moved, and means for drawing the straps inwardly against the face of the roli during the withdrawal of the web therefrom, said means being operable to release the straps from the roll without changing the position of vthe support.

8. A web supply mechanism for printing presse-s comprising, in combination, a movable support for rotatably supporting a running'r roll and a spare roll, strap tension mechanism for controlling the travel of the web from the roll into` the press, said mechanismA including a separate series. of tension straps for each roll of paper,

said straps being movable with the rolls when the support is moved, and means for drawing the straps inwardly against the face of the roll during the withdrawal of the web therefrom, said means beingoperable to release the straps from the expired roll and to draw the straps against. the face of the succeeding full roll.

9. A web supply mechanism for printing presses comprising, in combination, a reel provided with means for rotatably'supporting a running roll and a spare roll, and strap tension mechanism for controlling the travel vof the web from the roll into the press, said mechanism including a separate series of tension straps for each roll of paper and means for causing the tension to be released from one of said rolls when applied to the other, said straps being positioned between the reel axle and the rolls and movable with the rolls when the reel is turned.

10. A web supply mechanism for printing presses comprising, in combination, a reel provided with means for rotatably supporting a running roll and a spare roll,'strap tension mechanism for controlling the travel of the web from the roll into the press, said mechanism including a separate series of tension straps for each roll of paper and means for causing lthe, tension to be released` from one of said rolls when applied to the other, said straps being movable with the rolls when the reel is turned, and means including a torque motor for drawing thestraps inwardly against the face of the roll during the withdrawal of the web therefrom.

11. In a web supply mechanism for printing presses the combination 'of a reel for supporting 110 a running roll and a spare roll, and a stationary strap tension device for each of said rolls for controlling the travel' of the webfrom the roll into the press, said tension devices being supported upon and movable with the reel and including means forl causing the tension to be released from one of said rolls when applied to the other. ,y .j

` 12. In a webv supply mechanism for printing presses, the combination with a reel 'for rotat- 120 Aably supporting a running roll and a spare roll ,of a strap tension mechanism comprising a separate series of tension straps for each roll of paper, `said straps being positioned between the reel axle and the rolls and movable with the rolls when the reel is turned and said mechanism including means for causing the tension to be released from o'ne of said rolls when applied to the other.

13. In a web supply mechanism'for printing 13@ presses, the combination with areel for rotatably y supporting a running roll and a spare vroll of a straptension mechanism comprising a' separate seriesiof tension'straps for each roll of paper and including means for causing the tension to be released from one of said rolls when applied to the other, and means for holding said straps against the face of the roll duringthe withdrawal of the web therefrom.

14. In a web supply mechanism for printing 14() presses, the combination with a movable support for rotatably supporting a running roll and a spare roll of a strap tension mechanism comprising a separate series of tension straps for each roll of paper and including means for causing the tension to be released from one of said rolls when applied' to the other, and means for holding said straps against the face of the r'oll during the v i withdrawal of the` web therefrom, said means including, a separate yoke support member for each of said series of straps, said yoke members being pivotally supported at their inner ends to allow limited swinging movement relative'to the rolls.

15. In a web supply mechanism for printing presses, the combination with a movable support for rotatably supporting a running roll and a spare roll of a strap tension mechanism for controlling the travel of the web from the roll into the press, said mechanism comprising, a separate series of tension straps for each roll of paper, a yoke for supporting each of said series of straps, spider members mounted upon and disposed at opposite ends of said support, said members affording pivotal support for the inner ends of the yokes, and means forswinging said yokes inwardly to hold the straps against the face of the roll during the withdrawal of the web there" from.

16. In a web supply mechanism for printing presses, the combination with a movable support for rotatably supporting a running roll and a spare roll of a strap tension mechanism for controlling the travel of the web from the roll into the press, said mechanism comprising, a separate series of tension straps for each roll of paper, a yoke for supporting each of said series` of straps, spider members mounted upon and disposed at opposite ends of said support, the arms of said members affording pivotal support for the inner ends of the yokes, drum shafts 'extending transversely of the support between said spider arms, drums spaced along said shafts, and means for turning said drums to draw the straps inwardly against the face of the roll during the withdrawal of the web therefrom.

17. In a web supply mechanism for printing presses, the combination with a movable support for rotatably supporting a running roll and a spare roll of a strap tension mechanism for controlling the travel of the web from the roll into the press, said mechanism comprising, a separateseries of tension straps for each roll of paper, a yoke for supporting each of said series of straps, spider members mounted upon and disposed at opposite ends, of said support, the arms of said members. aifording pivotal support for the inner ends of the yokes, drum shafts extending transversely of the support between said spider arms, drums spaced along said shafts, and means including'a torque motor for turning said drums to draw the straps inwardly against the face of the roll during the withdrawal of the web therefrom.

18. A web supply mechanism for printing presses comprising, in combination: a movable support for rotatably supporting a running roll and a spare roll, said support including, a central shaft and a pair of spider members disposed at opposite ends of said shaft and having arms extending radially therefrom, said arms being provided at their outer ends with means affording free rotational support for the rolls of paper;

means for turning said support to successively bring the rolls into running position; and strap tension mechanism for controlling the travel of the web from the roll into the press, said mechanism comprising, a pair of end plates positioned at the opposite ends of the support between the ends of said shaft and said spider members and rotatable with said members when the support is i turned, said plates having arms extending outwardly between adjacent pairs of rolls, drum shafts extending across the support between the outer ends of said arms, drums spaced along said shafts, yoke members pivotally mounted at their inner ends on said shafts, the cross arms of said members extending parallel to the face of the adjacent roll, a separate series of tension straps for each roll arranged in spaced relation across the face of the roll and connected at their outer ends to said cross arms, and means for turning said drums to draw the straps inwardly agamst the face of the roll during the withdrawal of the web therefrom, said means being operable to release the straps from the expired rolland to draw the straps against the face of the succeeding full roll.

19. A web supply mechanism for printing presses comprising, in combination: a movable support, including a central shaft and a pair o f spider members disposed at opposite ends of said shaft, each of said members having a pair of diagonally opposed arms extending radially from the shaft, said arms being provided at their outer ends with means affording free rotational support for the rolls of paper; vmeans for turning said support to successively bring the rolls into running position; rand strap tension mechanism for controlling the travel of the web from the roll into the press, said mechanism comprising, a pair of 105- end plates positioned at the opposite ends of the support between the ends of said :shaft and said spider members and rotatable with said members when the support is turned, said plates having opposed pairs of arms extending outwardly 1' between the rolls on the opposite sides of said shaft; drum shafts extending transversely 'of the support between the outer ends of' said arms, take-up drums spaced along one of said shafts, idler drums spaced along the other of said shafts, 1 a pair of yoke members positioned on opposite sides of the support and pivoted at their inner ends on said shafts, the cross arms of said members extending 4parallel to the face of the adjacent roll, a separate series of straps arranged in 1 spaced relation across the face of each roll, the straps for onel of said rolls being connected at their outer ends to the cross arm of the adjacent yoke member and at their inner ends to said takeup drums on the shaft carrying the second yoke 25 member, the straps for the other roll being connected at their outer ends to the'cross arm of the second yoke member and thence passing over said' idler drums on the shaft carrying the rst yoke member to points of connection with said taketion to the rolls on said reel, supportsfor said LJ straps which are movable withthe reel whereby the straps are maintained in operative relation to the roll at any position in the 360 rotation of the reel, andmeans for applying tension through ALLAN J. CLINE.

said straps'to the roll at any time serving the press. KJA5