US1317486A - A cokp - Google Patents

Description

6 SHEETS-S HEET l.

ented Sept.

. Pat

WITNESS BY Z51? A TTORNEYS.

J. J. FLANIGAN.

MULTIPLI: CO'PYING MACHINE.

APPLICATION FILEQ JUNE 14', 1918.

1 ,3 1 7,48 Patented Sept. 30, 1919.

6 SHEETS-SHEET 2.

. INVENTOR WITNESS Jhn Jain/gait WW" $9 043 m ATTORNEY J 1. FLANIGAN. MULTIPLE COPYING MACHINE.

- APPLICATION FILED JUNE 14. I9If LEI-7 486.

lutentodSept. 30, 1919.

6 SHEETS SHEET 3.

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{INVENTORY @7221, u flzmgam BY ii WITNESS A TTORNEYS.

1.1. FLANIGAN.

MULTIPLE COPYING MACHINE.

I APPLICATION FILED .IUNE I4. 1918. 1,317,486.

Patented Sept. 30, 1919.

6 SHEETSSHEET 4 INVENTOR. Jahm J? mgm 1 I BY Jaw ML? mmq ATTORNEYS.

A A I A Patented Sept. 30, 1919.

6 SHEETS-SHEET 5.

W1 TNESS ATTORNEYS,

1.1. FLANIGAN.

MULTIPLE COPYING MACHINE.

APPLICATION FILED JUNE 14, 1918.

L 1 7,486 Patented Sept. 30, 1919.

6.SHEETSSHEET 6.

I N V EN TOR. W1 TNESS L/ahn JZfZanga/n M 3 ma v W ATTORNEYS.

ING COMPANY, or o IoAeofILLmoIs, a conroaarron or WEST VIRGINIA.

MULTIPLE-comma Madman;

rsi rase,

App1ication filed .l'une'l l, 1918. SerialIiTo. 240,044.

I To all whom/"it may comet;

Be it known that 1, JOHN J. F LAN GAN, a citizen of. the United States, residing. at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Multiple-CopyingMachines, of which the following is a specification. v

This invention relates to multiple copying machines or heotographs, and has reference more particularly to a rotary form of such machines wherein the, printing band or apron that receives the impression from the master sheet and latertrans'fersit to the copysheets is stretched over-the surface of an oscillating cylinder or drum, the idle portions of the printing band being wound on receiving and -delivery.,spools journaled in the cylinder,

and a fresh surface being obtained as often as required. by winding up the used surface on the receiving spool and simultaneously drawing onto the surface of the cylinder a fresh surface from the delivery spool. 1

One 'difliculty that has been experienced in the practical use of such machines arises put of the excessive friction of the printing band on the surface of the cylin der,'whicl1 latter usually has a surface covering of can as or like material to afford a suitable bed orebacking for the printing band, the curved form of the bed making the operation of drawing on a fresh surface diflicultand likely to be attended by injury tothe band itself 01 to the winding and unwinding mechanism. One object of the present invention, therefore, is to overcome this difliculty and provide means for facilitating the bandshifting operation.

Again, in machines of this type which employ a positively driven platen or impression roller for feeding the sheet to and impressing it on the cylindrical surface of the printing band, it has hitherto been a matter of some difliculty to accurately synchronize the rotative movement of the platen roller with that of the oylinderso as to insure a perfectlysmooth and even rolling out of the sheet-on the printing surface. without the formation of wrinkles, creases, and similar Specificationof Letters Patent. Pafi gnhgdgept 3(1), 191%} fdefects. Another object of the invention,

therefore, is to improve the rotary type of copying machine in thisrespect also,and

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Jenn :i. rLAmGn or CHICAGO, ILLIrroIs, assrenon T0 DUPLICATOR mannrnorua.

always operate the platen roller in the proper predetermined speed ratio to the movement of thecylinder.

Still another object of the invention is to reduce and simplify the manual operations this object I accomplish through a novel mechanism by which the platen roller and the paper-gripping roller which cooperates therewith in depositing the forward or advance end of the sheet on the printing surface are automatically separated to allow the final withdrawal of a printed sheet and.

the introduction of a new sheet between them by a slight additional movement of the chine, partly broken out and in sections;

Fig. 2 is a vertical transverse section on the line 2-2 ofFig. 1;

Fig. 3 is a vertical transverse section on the line 33 of Fig. 1-;

Fig. 4: is an end elevation, viewed from the left of Fig. 1, partly broken out;

Figs 5 is a fragmentary view of the end opposite that shown in F ig 4, illustrating an adjustable stop device controlling the oscillating movement of the cylinder;

Fig. 6 is a vertical transverse section on the line 6-6 of Fig. 1;

F1g. 7 is a vertical longitudinal section on the line l7-Of Fig. 6;

Fig. 8 is a vertical longitudinal section on the irregular line 8- 8 of Fig. 3.

60 required to manipulate the machine, and

I Referring to the drawings, designates each of a pair of vertical side frame members rigidly connected by spacing rods 11,

7 heral surface that I extends through slightly more than one-half of thecircum- 10.

feience of the cylinder. Over the surfacelfiispreferably stretched a covering16 of canvas or like material that forms a suitable. backing for the gelatin printing band or' apron 17. The portions of thisprinting: band not engaged with. the surface of the' 'cylinderare'w'ound oninterchangeable receiving and delivery spools 18 and 19, each of said spools having duplicate ends consisting'of a polygonal chuck engaging portion- 20 20. and a round. spindle or journal portion 1,21 (Fig. 8) J ournaled in one of the cylinfi'der spiders 14: is a'winding chuck 22 for the ,I'eceivin'g spool 18, said chuck having a ratchet 23 co'o'perating with-a dog 24 to. prevent unwinding, and a shank or stem 25 adapted to receive a detachable crank 26.

'ceivings'pool engages an-openbearing 27 formed in the edge of a plate 27 secured to the other spider, said bearing 27 being closed by a pivoted guard 28 that may be '--'swung.down to permit the application and removal of the spool. liverys'pool; 19 is engaged with 'a chuck 29 One end of the de- 'ournaled in one ofthe cylinder spiders 1 said chuck 29 being provided with a ratchet 30 that isengaged by a pivoted dog 31 to hold the band'taut and preventunw-inding except when a fresh surface of the band is I J to be drawn ontothe cylinder; The other endflof. the-delivery spool 19 is journaled in 7 an open bearing 32 formed in the edge of a late 32' secured to the adj acent spider, .said

' earing 32' being-closed by a pivoted guard 33 thatjmay be swung upwardly to permit I the application and removal of the spool.

' It will be nbted that the described'constrguction of the spools, their bearings, and their winding and "detent devices enables"; the spools to be readily interchanged when necessary or desired.

. 'As before statedthe cylinde'rjis 1805,8

, on thesupporting shaft 13, but by refenence to 2', 6 and 7 ,it will be seenv that each ofthe spiders 1 4. and its hub 14 carries a 11 projecting pin 34 that enters an arc-shaped'slot 35 formed in a collar 36 that is keyed to the shaft 13, thereby providing for a limited relative rotaryjmovement' be- 650 pose hereinafter disclosed;

.1: {Keyed on one end of the shaft 13 a- 'jgspur gear 37 (Figs. 4 and "7),"with which ais removably images mounted on a fixed bearing-stud'39 rigidly amounted in a stiflening plate or cleat 40 "secured to-the outer side of the side frame member 10. Keyed on. the hub 38 of the in the same irection is imparted to the 'cylinder to cause the travel of the printing bed beneath ahin'ged platen frame hereinafter described. g I TfSecured on the otherend of theshaft. 13 1? with capacity for angularadjustment is a .480 I 'radius arm 42 (Fig. 5) that cotiperates in.

an obvious manner with a stop pin 43 carried by the adjacent side frame member 10 tolimit the extent of oscillation, of the cylinder.

the cylinder opposite. and peripherally flush with the ends of the circumferential wall 15.

of the latter area pair of rollers 44 forming anti-friction guides for the printing fL-The spindle 21 at the other end of the reband 17 between the e'nds offsaid wall and the winding and delivery rolls. l i

Pivotally suspended from, studsdh-in the hubs of the cylinder spiders is a bail-shaped yoke (Figs. 1, 2 and 3) comprising parallel arms 46 that lie opposite the outer sides of the spiders and a cross-bar 47 that underlies the circumference, of the cylinder parallel with the axis of the latter. The printing band 17 extends across the outer surface of'the cross-bar 47, so that a portion of the band. is always held by the bar out of contact with the surface of the cylinder. Each arm 46 of the yoke has a rightangle extension or branch arm 48 carryingna'weight 49. The normal or idle position of this yoke is that shown in'Figs.

l and 2 and in full lines in Fig. 3. When the band is wound up on the receiving spool to bring a fresh surface into use, the pull of the band swings the yoke up to the dotted line position shown in Fig. 3 atwhich point one of the arms 46 strikes the upper .edg e of-a slot 50 (Fig. 1) in the cylinder through which slot said arm asses, thereby limiting the upward swing o the yoke. It

Will readily be seen that the effect of' this I yoke is to hold a considerable portion of the and out of contact with the surface of the cylinder as the winding of the band'pro cfeeds, thereby reducing friction and requiring less power to wind the band and to that I extent lessening the danger of injury to the tween th'e shaft and cylinder for, a pur has been drawn off 'the bedand a fresh surface drawn thereon, and the pulling ten sion on the band thus relieved, the yoke I Journaled in andbetween the spiders of lar stop lugs 56 limit the upward and backward swinging movement of the frame.

Hinged on a rod 57 mounted in and between the side plates 52 of the platen frame is a bail-shaped yoke'comprising side arms 58 and a cross-bar- 59; and journaled in and between the free ends of the arms 58 is a platen roller 60,.one journal .whereof is mounted in an open bearing 61 and is con fined therein by a pivoted guard or keeper 62 (Figs. 2 and 3).' Tension springs 63 anchored to the rear bar 53 of the platen frame and connected to upstanding arms 64 on the cross-bar 59 ofthe platen yoke tend to swing said yoke in a direction to carry the platen roller 60 down toward the bed of the'cylinder; this downward swinging movement being limited by depending stop lugs 65 on the side plates 52 of the platen frame. The ends of the spindle of the platen roller extend somewhat beyond their bearings in the yoke; and to accommodate an upward swinging movement of said yoke and provide clearance for said spindle ends, the side plates52 of the platen frame are slotted as shown at 66. By reference to Fig. 8 it will be seen that one end of the spindle of the platen roll extends beyond the side plate of the frame and carries a pulley 67 for a purpose hereinafter explained.

68 designates a paper gripping roll that is journaled in and between the lower ends of a pair of links 69 pivotally suspended at 70 on the innersides of the side plates 52 of the platen frame. The gripping roll 68 is pressed into contactwith the platen roll 60 by springs 71 engaging the links 69, as clearly shown in Fig. 3. Stop lugs 72 on the side plates 52 limit the forward swing of the gripping roll when the platen roll is swung upwardly to separate said rolls for the introduction or withdrawal of a paper sheet between them. Secured to the rear wall 53 of the platen frame is a widthwise sadjustable pan or chute 7 3 that serves to guide the advance portion of the paper sheet, indicated at 74 in Fig. 3, into the platen frame and between the rollers 60 and 68 thereof. 75'designates a gagebar (Fig. 3) of L form in cross-section that is secured to the free ends of a pair of arms 76 pivoted at 77 to the inner sides of the drum spiders 14 near the periphery of the latter. This gage-bar normally occupies the position shown in Fig. 3 opposite-and flush with the forward end of the printing bed, and serves to square the forward edge of the paper .sheet with reference to thebed before the sheet is gripped between the rollers 60 and 68 and forced down. onto the bed. Springs 7.8 normally hold the gagebar in working position, but permit it to be swung back out of the. way when. shifting the spools of the printing band. I

The platen roller 60 is positively drive at the same surface speed as the cylinder through the following mechanis'm. Ro'tar table on the hingerod 51 are a air of pulleys 79 and 80 that, are integra or rigidly connected with each other, the former haV-,

ing a spirally grooved periphery and the latter a circularly grooved periphery. A cord 81 passes twice around the pulley 79 and over an end extension 15 (Fig. 1) of the peripheral wall 15 of the cylinder, one end of said cord being attached to a 0st 82 (Fig. 2) on the outer wall of the a jacent cylinder spider 14, and the other end of the cord being attached, through a tensile spring 83, to a similar post 84, said spring always maintaining a taut condition of said cord.

The pulley 80 is arran ed in line with the platen roller pulle 67, and the two are drivingly connecte by an elastic cord or belt 85, preferably a coiled-Wire belt' as shown. In machines of the type employing a stationary fiat printing bed, and a reciprocatory platen frame hinged at one end to the machine frame, and wherein the platen roller is driven by a cord engaged with a spirally grooved pulley on the spindle of the platen roller, experlence has shown that there is a considerable tendency of the driv ing cord to creep in the grooves of the pulley under the up and down swinging move ments of the platen frame, and to pile up more or less atone end of the pulley. The driving mechanism of the platen roller in the present machine is entirely free from this fault, and effects a uniform drive of the platen roller in accurately synchronized relation to the travel of the printing surface of the cylinder The cylinder is normally locked to the shaft 13 (to which latter the operating hand le is positivelygeared) so as to insure simultaneous movements of the drum and handle during the oscillating of the drum in both directions and without any lost mothe downwardly extending arm 87 of saidlever having a notch 88 that normally engages, under the influence of spring 89, a,

- of the cylinder is arrested at the correct liver the sheet). continued .or additional swing of the bana an a. stud formed on one ofthe collars 36 (Fig. 7)

90 carried by a radius arm; 91

that is," keyed fast on shaft 13. When, however, the-cylinder has been returnedto startin}; positiomor. when commencing tooperate the machine, ail-additional movement. of the handle',-'from the full to the dottedline position (F i s. 2 and 4) takes place in order to separatet e rolls. 60 and 68 for the witharm ,87'f'rom pin 90. This takes place automa tical-ly, as shown in Fig. 6, through cohQ {tact of the/upwardlyextending arm 92 of the elbow lever with anadjustable stop 93 depending from the platen frame. At the instant this takes place the rotary movement point'bycontact of a lug 94 on the spider 14 with the upper end of arm 92 of the elbow lever; which-latter is then engaged with stop 93, as shown in Fig. 6.

" operations, or; at the commencement of the operation of the machine, the rollers 60 and 68 'of'the platen-frame are opened or separated by the downward swing ofhandle 41- ;from the full to the dotted line position shown in Figs. 2 and 4 by-means of an arm 95 keyed to shaft 13 (Fig.,.7 and carryin at'its free end a roller 96 that-strikes a rigi depending arm 97 *on the pivoted yoke on the platen frame, that carries" the platen roller 60. This swings the inner end of the yoke and the platen roller upwardly awayv -from the gripping roller 68, as indicated by dotted lines in Fig. 6, permittingthe printed "sheet-to be withdrawn or a new sheet to be introduced. Upon the introduction of a new sheet, with its advance edge squared against the gage-bar, the upward swing of' the handle from the dotted to the full line position, Figs. 2 and 4, allows the yoke of the platen frame to descend under the pull ofsprings 63, gripping the paper between, the rolls 60 and 68-; and then carrying the -printin band; The continued upward and advance portion of the sheetdown onto the forwar. swingof the handle causes the rotation ofthe cylinder to the extent permitted bythe- stop devices 42, 43, thus rolling the sheet out on the printing bed. Thereupon the return swing of the handle returns the cylinder to. startingposition, during which itime the'sheet is peeled off the printing band by the reverse revolution of the rollers and 68 (now\,turning in a direction to de- As already mentioned, a

.dle. in the same direction, after the cylinder has stopp'ed, ope ns up the rollers of the" platenjframe releasing the forward end "of" At the conclusion of the last. described for the reception of the next slieet. v.

the printed sheet and priming the machin It is believed that the. construction and '1 manner of operation of the machine of myv a present invention will be. readily understood by those skilled in the art from thefore'going description and illustration. While I have shown a particular mechanical embodi-' ment ofthe principle of the invention, it will a be manifest, that thesame: can be to a considerable extent; modified in detailwithout departing from its law of operation' orsacrificing any of the benefitsand advantages obt'ained thereby I therefore do not wish to be limited to theex'act mechanism" shown and described, but claim fall equivalents thereof which-come ,within the spirit of the inventionas definedin' appended claims. I

v I claims cylinder,; a printing band overlying the pelying lengthwise of said cylinder between the periphery of the latter and said band andholding a portion of the latter out of .contact with the peripheral surface of said cylinder.

2. In a multiple copying machine .of the type described, the combination of a rotary cylinder, a printing band overlying the pe- 1.' In a multiple copying machine ofthe type described, the combination of'a'rotary 'ripheral surface. of said cylinder, 1 receiving and delivery spools forsaid band, and'a bar a ripheral surface of said'cylinder, receiving and delivery spools for said band, and a yoke pivotally suspended from the ends of said cylinder, said yoke having a cross-bar lying lengthwise of said cylinder between the periphery of the latter and said band and holding a portion of the latter out of contact with the peripheral surface of said cylinder.-

cylinder, a printing band overlying the peripheral surface of said cylinder, receiving and delivery spools for said'band, a yoke pivotally suspended from the ends of said cylinder and formed witha crossbar lying lengthwise of said cylinder between the periphery of the latter and said band,--said "yoke adapted to be swung upwardly partly around said cylinder as a fresh surfaceof the band is drawn onto the latter, and means for returning said yoke to normal position.-

4. Ina multiple copying machine of the type described, the combination of a rotary cylinder, a printing band overlying the pcripheral surface of-said cylinder, receiving and delivery spools for said band, "a'yoke pivotally suspended from the ends of said cylinder and formed with a cross-bar lying lengthwise of said cylinder between the peri-phery of the latter and said band, said yoke adapted to be swung upwardlypartly around said cylinder as a fresh surface of theband is drawn onto the latter, meansjfor li'm} 105 3'. In a multiple copying machine of the type described, the combination of a rotary 'iting the extent of upward swing of said yoke, and Weights on-the 'arms of said yoke serving to return the latter to normal position,

5. In a multiple copying machine of the type described, the combination of a main frame,'a printing cylinder journaled in said frame, a platen frame hinged on said main frame above said cylinder, a platen roller carried by said platen frame-and cooperat-v v ing with said cylinder, a pulley mounted I coaxially with the hinge of said platen frame, and belt connections fromsaid pulley to said cylinder and platen roller respectively'.

6. Ina multiple copying machine of the type described, the combination of a main 'frame, a printing cylinder journaled in said f rame,-a platen frame-hinged on-said main frame above said cylinder, a platen roller carried by said platen frame and cooperating with said cylinder, a pulley mounted coaxially with the hinge of-saidplaten frame, a driving belt secured at its ends to. said cylinder and passing. one or more times around said pulley, and an endless driving beltcOnnect 7 ing said pulleywith. said platenroller.

3'0 f said frame, aplaten frame hinged on said In a multiple copyingm'achineiof the type described, the comliination of a main frame, a printing cylinder journaled in main frame above said cylinder, a platen roller carried by'saidplaten frame and oooperating with said cylinder, fa pulley mounted coaxially with the hinge of said platenframe and having a spirally grooved a portion and a circularly grooved portion, a

driving belt passing one or more times around said spirally grooved portion and thence extending in opposite directions around said cylinder and anchored at its ends to the latter, and an endless driving belt connecting-the circularly grooved portion ofsaid :pulleywith said platen roller. '8'. In a'multiple copying machine of the type described, the combinationof-a' main frame, a printing cylinder journaled in said frame, a platen frame hinged on said main frame above said cylinder, abodily movable 'tic endless driving belt connecting ley with said platen roller. 9, In a multiple copying machine of the platen roller mounted in said platen frame and cooperating with said cylinder, a pulley mounted coaxially with the hinge of said platen frame, a driving belt secured'at its ends to said cylinder and passing one or more times around said pulley, and an elassaid pultype described, thecombination of a rotatable printing cylinder, an operating handle,

separable driving connections between said handle and cylinder, a pair of separable paper-gripping rollers codperating wlth said cylinden'a stop for arresting the turning movement of said cylinder, means for autoinatically separating. said driving oonnections when the movement of the-cylinder is arrested by said stop, and means actuated by said handle on a further movement thereof for separating said gripping rollers.

10. In a multiple copying machine of the type described, the combination of a rotatable printing cylinder, an operating handle, separable driving connections between said handle and cylinder, a pair of separable paper-gripping rollers cooperating with said cylinder, a fixed stop for arresting theturning movement of said cylinder in one direction, an adjustable stop for arresting the turning movement of said cylinder in the rable driving connections between said shaft and cylinder, a pair of separable paper.- gripping rollers cooperating with said cylinder, a stop for arresting the turning movement of said cylinder, means for automaticallydisconnccting said shaft from said cylinder when the movement of the latter is arrested by said stop, and means actuated by said shaft on a further turning movement thereof for separating said gripping rollers;

12. In a multiple copying machine of the type described, the combination of a main frame, a printing cylinder rotatably mount ed therein, an operating handle for said cylinder, a platen frame mounted on said main frame, a pivoted yoke carrying a platen roller in said platen frame, and means for swinging said yoke from said handle during the final partof the movement of said handie in one direction.

In a multiple copying machine of the type described, the combination of a main 'frame, a printing cylinder rotatably mounted therein, a stop for limiting the turning movement of said cylinder, an operating handle, connections between said handle and cylinder permitting an excess movement of the former after the latter has been arrested by I said stop, a pivoted yoke carrying a platen roller in said platen frame, and means actuated by. said handle during its excess movement for swinging said yoke.

14c. In a multiple copying machine of the type. described, in combination, a hollow rotary cylinder having a parti-cylindrical surface forming a printing bed, a printing band overlying said bed, interchangeable spools for the idle portions of said band within said cylinder, bearings and winding devices for said spools mounted on the end Walls of said cylinder, and 'a pi oted gageb'ar disposed opposite one end of said print-e ing bed.

15. In a multiple copying machine of the type described, in combination, "a' hollow. rotary cylinder having a parti-cylindrical surface forming a printing bed, a printing band overlying said bed, interchangeable spools'forthe idle portions ofsaid jband within said cylinder, bearings and winding 10 bed JOHN J. FLANIGAN.

and lying opposite one end of said printing 15

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