US1272362A - Sheet-delivery mechanism. - Google Patents

Description

F. H. BEROLD.

SHEET DELIVERY MECHANISM.

4 SHEETS'SHEET l.

Paranted July 16, 1918.

APPLICATION FILED NOV. 28. $913.

F. H. BEROLD.

sum DELIVERY MECHANISM.

APPLICATION FILED NOV. 28, 1913. '1 ,272,362. Patented July 16, 1918.

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, SJHEE-T DELIVERY MECHANISM.

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F. H. BEROLD.

SHEET DELIVERY MECHANISM.

APPLICATION FILED NOV.28.1913.

' Patented Ju1y16,1918.

#SHEETS-SHEET 4.

FREIPERICK H. BEBOLD, WYOMING, OHIO.

SHEET-DELIVERY MECHANISM.

Specification of Letters Patent.

Patented July 16, 1918.

Application filed November 28, 1913. Serial No. 803,561.

To all whom it may concern Be it knownthat I, FREDERICK H. BEROLD, a citizen of the United States, residing at l/Vyoming, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Sheet-Delivery. Mechanism, of which the following is a specification.

My invention relates to sheet delivery mechanism adapted for employment in machinery operating on, sheets, such as' 'printing machinery, ruling machinery, and the like. I have illustrated the same in connection with a printing machine, and shall describe it in connection with such employment. I

Objects of my invention are to provide novel transferring mechanism for the sheets, to provide a novel sheet-receiving device, and to provide novel means for di-- recting the sheets from the transferring mechanism to the sheet-receiving device;

' further to provide an impression cylinder and a sheet-receiving device thereunder, and a rotary sheet 'trans ferrer located in a horizontal plane between said impression cylinder and sheet-receiving device; further to arrange the parts in such'manner that the sheets are delivered to the sheet-receiving device printed or wet side up, the sheet-receiving device beingmov able from under the sheet for dropping the sheet.

It is the object of my invention further, to provide novel means for causing release. of the sheets from the transferrer; further to provide novel means in connection with the transferrer for aiding in ready delivery of the sheets; further to provide novel delivering. mechanism comprising flexible carrying means movable in the direction of movement of the sheet for receiving the sheet and arranged 'to be retracted from under the sheet with a peeling movement; further to provide novel delivery mechanism 7 comprising a carriage and flexible carrying means bodily movable under a rotary transferrer in the direction of the movement of the sheet received thereby and arranged to be retracted from under the sheet by a movement of the carriage relative to thefiexible carrying means; and the invention will. be

further readily understood from the following description and" claims, and from the drawings, in which latter:

Figure l is a side elevation of so. much of a printing machine as is necessary to illustrate my invention employed in connection therewith.

Fig. .2 is a vertical longitudinal section of my improved device shown in connection with so much of a printing machine as is advisable to illustrate its connection therewith, the section beingtaken on a line corresponding to the line 2-2 of Fig. 3.

1 Fig. 3 is a plan view of my improved device, partly in section on a line correspondi11 to the line 33 of Fig. 2.

Fig. 4 is a vertical longitudinal section, taken on the line 41- 1 of Fig. 3, showing the rotary transferrer and its adjacent parts.

Fig. 5 is a detail of the rotary transferrer in cross-section on the line 55 of Fig. 3.

Fig. 5 is a detail of the same. I

Fig.6 is a cross-section of the rotary transferrer on the line 66 of Fig. '5.

Fig. 7 is a vertical longitudinal section of theflexible carrier mechanism, taken on the line'7 7 of Fig. 3. I

Fig. 8 is a cross-sectional detail of the same, taken on a, line corresponding to the line 88 of Fig. 7.

Fig. 9 is a cross-sectional detail of the same taken on a linecorresponding to the line 9-9 ofFig. 7

Fig. 10 is a cross-sectional detail of the same taken on a line corresponding to the line 1010 of Fig. 7 1

Fig. 11 is a horizontal cross-sectional de-.

tail of the same taken-on the line 1111 of Fig. 8. r a

' Fig. .12 is a detail in cross-section ofthe means for causing relative movement between the carriage and the flexible carriers or tapes, taken on a line corresponding to the line 1212 of Fig. 13.

'Fig. 13 is across-section of the sametaken on theline 13-13 of Fig. 4.-

Fig. 1 11's a detail in cross-section on the line 1 114 of Fig. 1, showing themeans.

for adjusting the. relation of the sheet-re- I 21 represents the main frame of the machine in which my invention is employed,

illustrated as a printing machine, compr1sing a cylinder 22, shown as an impression cylinder, which cotiperates with a type or plate cylinder 23,;hereinafter designated a plate-cylinder, accomplished in ordinary or well-known manner, suitable inking mechanism being provided for the cylinder 23, not shown because well known. v V

The cylinder 22' is secured to a shaft 24 which rotates in suitable bearings in the main frame, and has a gear 25 thereon (see Fig. 1), which is meshed by a pinion 26 on a drive-shaft 27, journaled in suitable bearings in the main frame and having connection with suitable driving mechanism, in stanced as a drive pulley29 fastthereon.

The cylinder 22 has a suitable number of grippers 3O thereon and moving therewith,

arranged to cooperate with the edge of the impressionsurface of said cylinder for re- -c'eiv-ing the sheet from a suitable feed-board 32, (see "Fig. '2), this being accon'lplished in any ordinary or well-known manner, the operation of the grippers for gripping the sheet and for releasing the same being ac complished in any ordinary or well-known.

1nanne r,-not shown because well known.

36 is a transferrer shown as comprising a series-of-sheaves 37 ona shaft 38 journaled in bearings 39 in the mainframe. (See Figs. 2 and 40, 40, are a series of sheaves on a shaft 41 secured in bearings 42 of the main frame. (See Figsg2, 3 and 16).

The sheaves 37, 40,are arranged to receive endless cords 43 thereover, which act to insure release of the sheets from the trans ferrer. These sheaves are arranged to be adjusted lengthwise of their respective shafts for placing the sheaves and their cords at suitable points crosswise of the sheet of. paper being printed or otherwise operated'on.

'The late Ial positioning of the sheaves 37 is accomplished by providing each sheave with 'ft SGt-SOPGTV 44. received against a key 45 in the sheave slidable lengthwise of a groove 46 extending substantially-the length of the sha-ft38. (See F ig. The lateral positioning of the sheaves 40 is accon'iplished by means of collars 4S and set-screws 49,

one of the'collarsbeing ateach side of the sheave. (See Figs. 2 and 3)..- The cords arereceived in grooves 50 in the sheaves 37 and grooves 51 in the sheaves 40.

The'grooves 50. for the sheaves 37 are shown as formedin the peripheries of disks 53, (see Figs. 2, 5, 5 and 6), releasably secured t spiders' 54, as'by making said disks of ring form and-.pluripart and providing their inner edges with slots 55-through which bolts 56 are received and threaded into the spiders for clamping saicLdisk-parts to said spiders, the inner edges of the :diskand under the heads of the bolts in directions at right angles to the axis of the shaft and permitting release or attachment thereof by slight turning of the bolts.

The walls of the grooves 50 are preferably formed serrated at their peripheral edges, as shown at 52, so that contact between the supporting'faces of the sheaves 37 and'the sheet being delivered may be reduced to the minimum and for providing contact points with the sheet for removing contact of the cords from the sheet. 7

The shaft 38 further has drawrolls 58 thereon, (see Figs.,3 and 16), adjustably secured lengthwise thereof in manner similar to thesheaves 37 .7 Each .of these draw-rolls preferably comprises a spider 54 to which pluri-part draw- ,roll disks 59 are secured in manner similar to the disks 53, each of the draw-roll disk-parts being provided with parallel slots v60 at their inner edges in which the bolts 56 are received. The drawroll disks and the sheave-disks are interchange able on the spiders.

These draw-rolls are arranged for having crosswise of the sheet which is free of printv ing- The

bearings 65 in one .end of leversGG, pivoted on.a cross-shaft.67 located inbearingsGS in tl1e;111tl1l-;flf&n16. (.See Figs. 2, 3 land 4). The other end of .each of said levers is contactedbya set-bolt .69 threaded in a lug of the frame for definitely positioning the recession of said draw-rolls 61 from the draw-rolls 58, a spring '71. positioning the lever toward said set-escrow, and thereby insurin smoothness of operation and avoiding rattling and(chattering of the .parts. The

nut72. r v

1s a'gear fast onthe shaft 38,and meshes with a pinion 7 6 on the draw-roll shaft 62' forzrotating thedraw-rolls' 6 1, (see Figs 3 and 4), the pitch diameters of the gear and pinion being preferably such that the per pherles; of the mating draw-rolls havesimi lar speed. a V v Grippe 8.1,. 6.1, a 11 'Qvid d 42 i ,i-l

draw-roll shaft .62 is journaled in set-bolt maybe locked in position byalockside the circle of the contact points of the transferrer, (see Figs. 4, 5 and 5), one of said grippers preferably coacting with each of the sheaves 37 and draw-rolls 58. These grippers are adjustably secured to a grippershaft 82, rocking in bearings I 83 in the spiders, the grippers being adjustably secured to the gripper-shaft by means .of setscrews 84:. p

85, 86, are bearers for the transferrer which cooperate with similar bearers 87 on the impression cylinder. The bearer S5- is shown as a housing which contains gripperoperating mechanism. The bearer 85 has a bearing 88 for the gripper-shaft 82, and the gripper-shaft has a segment-gear 89 secured thereto which cooperates with the segment gear 90 of a segment arm 91 pivoted on a pin 92 secured to the bearer 85. The arm 91 has a roller 93 thereon which cooperates with a cam 9a suitably secured to the main frame. The gripper-shaft has an arm 96 secured thereto to which a rod 97 is pivoted, the rod being slidable lengthwise in a pivoted bearing 98, a spring 99 between-said bearing and a shoulder 100 on said rod tending normally to close said grippers against the coacting gripping face of'said. trans-, ferrer. A stop 101 is provided for the gripper device. 7

The coacting gripping faces on the transferrer are preferably formed by lugs 102 on the spiders 54, the sheet-contacting faces of said lugs preferably being located at or outserrated edges, of the sheaves, so as to avoid impressing the sheet with said contact points by the grippers.

A sheet-receiving device coacts with the transferrer. 'This may be of suitable form for the purpose stated, and I have shown the same. as consisting of flexible carrier mechanism having novel construction and properties, which will now be described.

106, 106, are a seriesof flexible carriers, instanced as tapes, whichare arranged to be adjustablyplaeed crosswise of the machine,

depending on the points, for instance, of the.

printed surface, at which it is most desirable (See Figs. 2, 3, 7 and 16). These tapes are shown as endless tapes and are received about pulleys 107, 108. The pulleys 107 are shown as elongated pulleys on a shaft 109 journaled in bearings 110 in a carriage 111. The pulleys 108 are on a shaft 112 in bearings 113 on said carriage.

The carriage is a reciprocating carriage. I have shown the same. as comprising side frames, each of which comprises a yoke 114 ;and an angle-bar 115, secured thereto by 'side frames are connected by a cross-shaft bolts 116. (See Figs. 2, 3,7 ands). The

117 pinned tothe yokes by pins 118 and for additional rigidity the shaft 112,.1i1ay be y secured in the bearings .11 3 as .by

As stated, the tapes are laterally adjustable, which I prefer to accomplish by means which permit lateral positioning of the pulleys 108, as by locating said pulleys between collars 121 adjustably secured to said shaft 112 by means of set-screws 122. The pulleys 108 upon being adjusted will properly track the tapes about the pulleys 107 so that the tapes will extend in parallel directions parallel to the direction of movement of the sheet being fed. 'The tapes are preferably sufficiently stretched about the pulleys to cause them to move in unison and to cause them to retain their relative positions upon movement of the carriage with relation to said tapes.

'The carriage is arranged to travel back and forth with relation to the transferrer for receiving the sheets. upon the tapes, and relative movement is caused between the carriage and the tapes for causing a recession of the tapes from under the sheet with a motion which may be called a. peeling-off motion, whereby a proper dropping of the sheet may be attained.

- By the means illustrated in the drawings, a reciprocating motion of the carriage is attained in such manner that movement of the upper stretchesof the tapes will take place only inone direction.

Means are therefore provided whereby the upper stretches of the tapes move intermittently in one direction and the. lower stretchesof the tapes reciprocate.

The carriage is reciprocated in novel ner which will now be described.

126, 126, and 127, 127, are two pairs of sprocket-wheels. (See Figs. 1, 2, 3, 7 to 10, and 16.) Sprocket-chains 128 are re ceived about said sprocket-wheels. The sprocket-wheels 126 are fast on stud shafts 129 journaled in bearings 130 of the sides of the main frame. Pinions 131 are fast on the shafts 129 and are meshed by gears 132 fast on a cross-shaft 133, journaled in bearings 134i: of'the main frame. A gear 135 meshes with one of the gears 132 and is journaled on a stud shaft 136 fast in a bearing 137 inthe side frame. The gear 35 may be made removable for timing the travel of the carriagewto the time of delivery. by the: transferrer, so that the sheet may be delivered by the transferrer upon' selective parts of the carriage, primarily for insuring delivering of the front edge :the sheet at the front end of the carmanriage. The removal of the gear, 135 is ac-.

complished by releasing the bolt 138' having-threaded con'nectionwith thestud for securing a washer 139 in place against the endv of said stud for, holding said. gear. in place-.1 (See also F 141.). 7

141-1 is a gear. which is, journalcd on a. stud JALQ secured in a-bearing1413 inlthe main frame and is meshed a gear 1% fast onthe shaft 38 of the transferrer. driving of the tape-mechanism is showii'accomplished through the medium of the transferrer for the purpose of insuring proper timed movement between the transferrer and ,the tape-inechanisrn.

The sprocket-wheels 127 are secured to stud-shafts 146 which rota-te'in slide-bearings 1 47 adjustable toward and from the bearings 130 for providing means for adjustab'ly stretching the respective sprocketchains or taking up slack in the same.

These slide-bearings are adjusted by means of set bo'lts 148 received through threaded holes in the wall of the guideway 149, jam-nuts 150' Securing the set-bolts in adjusted position, the bearings being secured in adjusted positions by means of clamp-bolts 151; l

The upper and lower stretches of the sprocket-chain are respectively supported on guides l56, 157.

The carriage is supported on rollers 161, 16 2, traveling between tracks 163, 164:, at the respective si'des 'of the machine. Each of the side frames of ,the carriage is pro- 7 vided with a set of these rollers, which are shown journaled ,on axles 165, 166, secured in the yokeslll. I

The upright guide 167 is securedto the side frame of the carriage, across the stretches: of the sproclzet-chain, one of these upright guideways Y being shown secured to each side frame inthe present exem'plification. The sprocket-chainscoact with these guides for causing'trav'el ofthe carriage. Each of the guides is shown as provided with a channel 168 in which a roller 169 on a pin 170 on the'sproeket-chain is received. These connections with'the carriageat both sides of the same, are preferably'elocated'in the same positions with relation to the sprocket-chain for causing ease of travel of the carriage. The guides are shown con nected with the side yokes 'by means of screws 171. p

In the present exe nplificatiomthe sprocketwheels 126 have continuous rotary motion imparted thereto for moving the sprocketchains continuously, the stretches of the sprocket-chain in I the present exemplification moving in the directions indicated by the arr'owsa and Z2 respectively x '(see'rig. 7 As the sprocl et c1iai11moves the pin 17 O, which forms an actuatorfo'r the sheet receiving device,'iscarried withiit in its movement. During travelof this with either stretch of thesprocket-chain, thecarria ge is moved in theedirection iniwhich the stretch of the sprocket-chain contammg the'same moves. Thus when the pin moves in tlie direction of the arrow (6 with the upper stretch of the chain, a movement of the carria eina similar direction caused at a speed The ieeineidefi irith the pee o mer ei aw ment of said stretch of said chain. Then the pin arrives at a point in the vertical plane of the axis of rotation of the sprocketwheel 126, it begins to move about the outer periphery of v said sprocket-wheel, thereby moving in the arc of a circle and bringing the carriage to a gradual stop and again starting'the carriage with an easy motion as the pin descends beyond the horizontal plane of the axis of rotation of the sprocketwheel, this speed accelerating until thepin is in the vertical plane of the axis of rota tion of the sprocket-wheel 126, when the again moves forward atits li nit of speed, carrying the carriage with it at'such speed until the pin arrives at the opposite sprocket wheel 127, when a similar reversal of movement of the carriage takes place,

with a gradually decreasingand' then grad ually accelerating speed, The limits of reas to the frame, this cylinder being provided Q F g 2 with'a suitable valve 17 5. 7, 16 and 17). m V 7 When the pin 170 is in the lowerstretch of the sprocketchain, the carriage is mov ing in the direction of the arrow I), carrying the tapes with "it without relative inovement between the carriage and tapes for 7 receiving the sheet fro m'the transferrer.

For aiding-in release of the sheet from the'transferrer Ihaveprovided the cordmechanism, and for further influencing the movement of the forward edge of the sheet toward the tape mechanism I provide the cord-mechanism with directing rollers '17 6, there being preferably a directing roller for each of the cords 43. These directing rollers are mounted on studs 177in brackets 178 placed adjustably I crosswise of the machine as on a cross-bar 1'79 to which they are adjustably secured by setscrews 180,

the cross-barbeing rigidly secured to the mam frame.

The forward edge ofi the' paper being fe d about the transferrer is received between the coacting draw rolls' 58,161, and the grippers of thetransferrer are so timed that they will release the forward edge of the sheet when the sheet has been "received between sa d coacting draw rolls. The furtheraction of thecoacting draw rolls .is 'to cause a feeding. of this forward edge of the sheet in a direction intermediate between the peripherles of the coactmg drawq-ollsl The sheet is carried forwardwith: the lded f q livery motion of the upper stretches'of the tapes.

hen the front edge of the sheet has arrived at its forward limit of movement, a retrograde movement of the carriage takes place, the tapes however being held, so that retrograde movement of the upper stretches of the tapes is prevented, which I accomplish by holding one or more of the tapes, (see Figs. 2, 3, 12 and 13), shown in the present exemplification as accomplishedby jaws 180, which swing loosely about the cross-shaft 67 and coact with opposing aws 187, shown as brackets extending from the main frame. I show one of these sets of jaws cooperating with the outer tape at each side of the machine, the tapes so acted on cooperating with the pulleys 107 for arresting all the tapes.

Teeth 188' are shown on the jaws-186. The pivotal points of the jaws 186 are shown as in a position in rear of the contact-part of the jaws with the tape, whereby the jaws are relieved from holding'action upon the tapes during the feeding movement of the tapes, but act to grasp the upper stretches of the tapes to prevent retrograde movement thereof upon retrogrademovement of the carriage. The effect of the holding of the tapes upon retrograde movement of the carriage is to cause a relative movement between the carriage and the tapes, which acts to curl the delivery end of the tapes under the carriage and to retract the tapes from the sheet with a curling motion, the support of the sheet by the tapes being removed progressively from the delivery endof the sheet toward the rear end of the sheet. "his motion is accomplished quickly, and upon removal of the support, the sheet drops into" the receptacle 189. This receptacle may be any suitable device well known in the art for the purpose and comprises side walls, some of which are given a jogging motion in well known manner to stack the sheets.

The forward limit of movement of the front edge of the sheet may be gaged by a stop or stops 181, shown adjustable crosswise of the machine on a rod 182 secured to the main frame, and adjustably positioned by set-screws 183. As the forward edge of the sheet approaches the stops, the pins on the sprocket-chains arrive in a vertical plane coincident with the vertical, plane of the axes of rotation of the sprocket-wheel 127,

when the pins begin their travel about said sprocket-wheels and cause retardation of the speed of movement of the sheet, so that it may finally contact said stops without a buckling or crushing effect upon the edge of the sheet, thereby maintaining said edge as a true edge so as to insure perfect registry of the sheet in subsequent printing or other operations.

My improved device provides means whereby release of the tapes from the sheet takes place with a peeling movement, avoiding abrasive movement between the tapes and the surface of the sheet, and preventing buckling of the sheet,and provides means whereby the support under the sheet is removed without disturbing the position of the sheet, but permitting the sheet to slowly settle upon the stack under the influence of its own weight.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is: v 1. A. sheet delivery mechanism comprising in combination, a moving sheet transfer device, a moving sheet-receiving device, and an endless cord mechanism having diagonally arranged stretches acting on the moving sheet between said moving sheet transfer device and said moving sheet for directing said moving sheet toward said receiving device. I

2. In sheet delivery mechanism of the character described, the combination of a rotary transferrer comprising a delivery sheave having a peripheral groove the walls whereof are provided with peripheral serrations the peripheral ends of which are arranged to contact the sheet and a delivery cord received in said groove.

3. In sheet delivery mechanism of the cha'acter described, a rotary sheet transferrer comprising a delivery sheave which comprises a supporting part and a pluripart disk, and means for releasably securing said parts of said disk to said supporting part, the parts of said disk provided with a peripheral groove the walls whereof are formed with peripheral serrations. and a delivery cord received in said groove.

4. I11 a sheet delivery mechanism of the character described, the combination of a rotary transferrer, a reciprocating sheet-receiving device, said rotary transferrer comprising sheaves, coacting sheaves therefor, endless cords received in a pair of stretches about said sheaves and coacting sheaves, and pulleys coacting with one of the stretches of said endless cords for directing the same obliquely to a point above said sheet-receiving device.

5. In a sheet delivery mechanism of the character described, a rotary sheet transferrer comprising a cord-receiving sheave provided with a peripheral groove the walls whereof are formed with peripheral serrations, and a' gripper, said sheave provided with a peripheral coacting surface for said gripper, and said peripheral coacting surface being coincident with the longitudinal projection of the peripheral edges of said peripheral serrations.

6. In sheet delivery mechanism of the character described, a rotary sheet transferrer comprising a shaft, a series of spiders part disks to said respective spiders.

7. In a sheet delivery mechanism of the character descr bed, the 'combln'atlon ofa rotary transferr'er comprising draw-rolls,

co'acting draw-rolls, a sheet-receiving device having reciprocating movement under said draw rolls,said draw-rolls acting to draw the sheet from said sheettr ansferrer,v and endless cords received about said rotary transferrer and comprising stretches tangent to saiddraW-rolls and adjacent to said sheet-receiving device.

8. In a sheet delivery mechanism of the character described, the combination of a rotary sheet-transferrer comprismg' a drawroll," a coactin'g draw-roll therefor, said draw-rolls acting to draw the sheet from said sheet transferrer, and means for locating said coacting draw-roll with relation to said first-named draw-roll comprising a lever 1n Wluch sald coactmg draw-roll 1s mounted, adjusting means acting on said lever for formlng a posit ve stop l11n1t1ng recession of said coacting draw-roll from sai'd first-named dravv roll, and a spring urging said' coactin'g draw-roll away from said first-named draw-roll.

v. 1. a a.

9. In a sheet delivery mechanism of the character described, the combination of a rotary tranferrer comprising a draw-roll, a coacting draw-roll, said draw-rolls acting to draw the sheet from said rotary transferrer, I a shaft on vvhich the latter is mounted, a lever in which said shaft is supported, an adjustable stop acting on said lever forming a positive stop for limiting recession of said coacting draw-roll from said first-named draw-roll, and a spring act ing on said lever urging said coacting drawroll away from said first-named draw-roll.

1O,In -sheet delivery mechanism of the character described, a rotary sheet transferrercomprising a shaft, a spider adjustable laterally thereon, and a series of pluripart disks respectively having difl'erent sheet-contacting peripheries, the parts of said pluri-part disks respectively having parallel slots open-ended at their inner ends and: securing means for. said disk-parts on said spider received through said open: ended slots into saidspider, whereby to remove said disk-parts from and to replace said disk-parts on said spider bymovements of said disk-parts,. in directions at right angles to said shaft.

In testimony whereof I have hereunto signed my name in the presence of tWo subscribing Witnesses.

FREDERICK BEROLD.

Copies of this patent ma be obtained for five cents each, addressingthe Commissioner of Patents,

Washington, D. G.

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