US965887A - Multiple copying-machine. - Google Patents

Description

J. J. PLANIGAN. MULTIPLE COPYING MACHINE.

APPLIOATIGH riLnn 1130.5, 1908.

P tented Ku .2,1910;

11 SHEETS-SHEET 1.

J. J. FLANIGAN. MULTIPLE GOPYING MACHINE. Airmouxon FILED no.5,190a

Patented Aug.2,1 910.

l1 SHEETS-SHEET 2.

J. J. PLANIGAN.

v MULTIPLE COPYING MACHINE.

APPLICATION F ILED DEC. 5, 1908.

Patented Aug. 2, 1910.

- 11 SHEETS-SHEET 3.

m2 wn J. J. FLANIGAN. MULTIPLE COPYING MAGHINE. APPLICATION IILBD 1320.5,1900.

Patented Aug. 2,1910.

11 annn'rasnnm 4.

' J. J. FLANIGAN. MULTIPLE COPYING MACHINE.

AIPLIOATION FiLED DEO.5,1908.

Patented Aug. 2,1910.

11 SHEETS-SHEET 5.

J. J-"FLANIGAN.

MULTIPLE OOPYING MACHINE.

urmonmn FILED mm 5,1905 7 Patented Aug. 2, 1910.

11 SIIEETS-SHHEBT 6;

J J. FLANIGAN MULTIPLE comma. momma APPLXUATION FILED DBO 5,1905 965,887. Patented Aug. 2, 1910.

11 SHBETS-SHEET 7.

J. J. PLANIGAN.

MULTIPLE COPYING MACHINE. AYIYLIUATION IIL'ED 17120.5,1908.

965,887. Patented Au 2, 1910.

. 11 SHEETS-SHEET 8.

1oz 103 100 9 250 v 101 3 8f J. J. FLANIGAN. MULTIPLE GOPYING MACHINE.

APPLICATION FILED no.5,1soa.

Patented Aug. 2, 1910.

11 BHEETS-SHBET 9.

J. J. FLANIGAN.

MULTIPLE COPYING MACHINE. APPLIOATION FILED DEO.5,1908.

Patented Aug. 2, 1910.

11 SHEETS-$211621 10.

J. LELANIGAN.

MULTIPLE COPYING MACHINE.

APPLICATION FILED DEO.5,1908.

965,887, Patented Aug. 2, 1910.

118HEETS-SHEET 11.-

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JOHN J. FLAIN'IGAN, OF CHICAGO, ILLINOIS.

MULTIPLE COPYING-MACHINE.

Applieation' filed December 5, 1908. ,Serial No. 466,152.

To all whom it may concern:

Be it known that I, JOHN J. FLANIGAN, a

citizen of the United States, residing at Chi cago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in. Multiple Copying- Machines, of which the following is a specification. y

This invention relates to improvements in multiple copying machines, or hectographs, as they are sometimes called, and has for its principal objectto provide a machine capa- -ble of effecting what I term sectional copying under a single common head or caption. In other words, the object sought is to produce a copying machine onto which a transfer may be made of the written or printed matter contained on one master sheet or document, which latter contains certain data at the top commonly known as the heading or caption, and which data is commonto and required in connection with portions of sections of other matter on the same sheet, so as to produce therewith a complete record.- 1

One of the leading uses for which my invention is designed is in connection with the clerical work of mail order and other large commercial houses. By the usual methods of commercial houses departmental orders are made for that portion of the goods contained in any order which must be furnished from each department; and it is therefore necessary to repeat the caption data or information on each several departmental order. hese departmental orders are made from the original customers' order, and after the goods have been packed and shipped the departmental orders are returned to the billing department and invoices of the whole shipment made from the sev- On this invoice,

but once, and the items furnishedby each department, together with expenses, etc., are taken from the completed departmental The machine of the present invention is designed to receive an impression of the caption and several groups of departmental orders that may be compiled in an invoice at the first writing, and then produce departmental copies. of the caption and of that g'rou or section of the items which is to be furnished by each of the. respective departments. The machine is also designed Specification of Letters Patent.

to furnish as many copies as may be required of any and all portions or combinations of portlons of the original document or master sheet for the numerous purposes to which such copies may be utilized to advantage.

The machine of my invention, while chiefly designed for the purpose above outlined," is capable of use generally wherever sectional copying under a single or common head or caption may be required as, for in- Patented Aug. 2, 1910.

stance, in transferring day-book or journal entries to ledger accounts.

In its general features the machine comprises two longitudinally alined frame-sections, preferably made separable. for convenience in applying and removing the dupli cating bands, one of said sections carrying the duplicating band to receive the caption and the other carrying the duplicating band to receive the items or oups of items. Each section of the machine has mounted thereon a band-gripping device slidable in the direction of travel of the bands and clamping the opposite edges of thelatter. The gripper that engages the caption band. cooperates with a'stop device on the frame which determines and limits the extent of travel of the said band according to the length of the individual caption to be impressed thereon. The gripper engaging the other duplicating band is rigid with a) longitudinally slidable spring-actuated bar that carries a series of stop-pins cooperating with a fixed stop on the frame, and also wlth an indicator device which determines from the master sheet the several stop-pins that are to be used in the step-by-step advance of the duplicating band according to the length of the several items or groups of items on the master sheet, and also throws said pins into and out of operative position .for cooperation with 'a fixed stop on the frame. The

receiving rolls of the duplicating bands are preferably both under spring tension tending to wind them up, and suitable detent devices thrown into action upon the release of the clamps arrest the winding of the bands when the clamps are released and slipped back for a fresh hold on the bands.

. In the accompanying drawings and the following detailed description thereof have sought to disclose onei practical mechanical form in which the principle of the 45 whichja copy is tobe made.

construction the machineillustrated might be modified without involving any departure from its principle of eration or any variation from the substantial features of the invention.

Referring,

then, to the drawings, Figure 1 is an elevational View of the machine from,

one end of the machine. Fig.6 is a longi-,

tudinal section, showing'in elevation the inner side of one of the main side-frame'mem- 'bers of the machine and the mechanism carried thereby. Fig. 7 is a fra mentary crosssectional View, on an enlarged scale, through that section of the machine adapted to receive and transmit the impression of the heading or caption. Fig. 8 is a cross-sectional view similar to Fig.7 through that section of the machine adapted to receive and transmit the impressions of the items or groups of items under the heading or caption- Fig. 9 is an enlarged broken detail, partly in section, of the automatic selective stop mechanism controlling the movement A of the item-duplicating band. Fi 10 is a cross-sectional detail through the last-mentioned mechanism. Fig. 11 is a detail horizontal section on the line 1111 of'Fig. 2,

looking downwardly. Fig. 12 vis a detail elevation of an interlocking device control' ling the relative movements of the bandgripping devices. Figs. 13 and 1a are, respectively, a longitudinal section and top plan of one of the gripping devices of the duplicating' bands. Figs. 15 and 16 are cross-sectional views of the platen cylinder and the mechanism carried thereby forclampingiand releasing the sheet on or from Fig. 17 is a side elevation of one of the spools of the duplicating band. Fig. 18 is an e'fnd elevation of the spool shown in Fig. 17. Fig. 19

isa plan view of a master-sheet, from which sectional copies are designed to be made by the machine, each having the same heading or caption. Fig. 20 is a similar view of one of such sectional copies.

Referring tothe drawings for a detail de- 5 scription of the mechanism, 1 and 2 designate a pair of parallel horizontal bars supported at their ends on feet 3 aud t, respectively, and constituting the; inain rests or supports for the machine frame and parts carried thereby. -To the bars 1 and, 2 are rigidly secured at one end of the latter the main upright-side-frame members 5.-and 6 of that section of the machine designed to carry what I shall hereinafter term the item duplicating band; while the other portions of the bars 1 and 2 constitute a track or slideway for the side-frame members 7 and 8 of the other section carrying what I shall hereinafter term the caption duplicating band, The side- frame members 5 and 6 are rigidly connected and spaced by a transverse brace 9 (Figs. 4 and 5), and a similar transverse brace 10 connects and spaces the side-frame members 7 and 8 of the other frame section. The side-frame members of the two sections are further connected and spaced at their inner and outer ends-by rods 11 and 12 (Fig. 6) which are rotatably mounted in said frame-members and serve asguide. rollers for the duplicating bands 13 and 14 (Fig. 3). The itemduplicating band 13 is wound on receiving and delivering spools l5 and 16, respectively (Fig. 4:), and the caption-duplicating band ltis similarly wound on receiving and delivery spools 17 and 18, respectively, the intermediate or flat working sections of the two bands being supported on horizontal beds 19 and 20 suitably secured to and between the side-frame members. The several spools 15, 16, \17 and 18 are all alike, and one of said spools is illustrated-in detail in Figs. 17 and 18, from which it will be seen that the heads of the spools have formed thereon or otherwise rigid therewith a longitudinally projecting squared portion 15, and projecting longitudinally of the latter a cylindrical bearing spindle 15" that .is coaxial with the body of the spool, the two ends of the spool being duplicates. The several spools-are removably journaled at one end by their spindles 15 in pivoted spring actuated arms 21 and 22 (Fig. 1) mounted on the outer sides of'the side- frame members 6 and 8,, respectively, each 0 said arms having formed therein a half-journal cotiperating with semi-circular notches 23 and 24. formed in the edges of the sideframes, which permit the insertion and removal of the spindles of the spools when the arms 21 and 22 are depressed, and confine them when in place. At their opposite ends the squared portions 15* of the spools are received in the correspondingly shaped sockets of chucks 25,5 26., 27 and 28 carried by rotary parts journaled in the side-frames 5 and 7, more particularly hereinafter described, and

l'through which the rotating movements of the spools are effected or controlled. This duplicate construction of the several spools 2 renders them bodily interchangeable relatively to their bearings; while the duplicate squared and rounded construction at the ends of each spgol renders the latter interchangeable end for end, so that either end 25 may, engage the journal bearing andthe other the chuck. This is important, since, when either duplicating band has been wholly wound up on the receiving spool, the

two spools of that band may be withdrawn and reversed as to their respective bearings, the delivery s 001 then becoming-the receiving spool, an vice versa.

The receiving spool 15 of the item-duplicating band is normally maintained under 7 windmg tension by the following mechanism. Referring more particularly to Figs. 6 and 8, 29 designates a lateral pocket formed in the side-frame member 5, in the outer wall of which and in a bracket 30 secured to and extending inwardly of said wall is'journaled a shaft 31. Loosely mounted on shaft 31 within the pocket 29 is a circular'spring case 32 containing a helical spring 33, the inner end of which is secured at 34 to the shaft31, while its outer end is secured at 35 to the rim of the case 32. Secured to one face of the case 32 is a spur gear 36, the hub 37 of which is loose on the shaft 31. Gear 36 meshes with and drives an idler gear 38 journaled in the side-frame member 5, and said gear 38 in turn meshes with and drives a gear 39 that is rigid with the spool chuck 26, this latter being journaled in a de ending hanger 26 secured to the side-frame member 5, and further bein provided with a ratchet disk 40 engage by a springpressed dog 41 which prevents back turning of the chuck and spool. The idler gear 38 is provided with a series of holes 42 adapted to be engaged by a pivoted spring-pressed locking dog 43, the tail of which lies adjacent to and slightly inwardly of the chuck 26, so that, when the spool is inserted in the chuck the dog 43 is retracted and the spring power is transmitted to the chuck, while,

' when the spool is withdrawn the dog 43 insta'ntly snaps into one of the holes 42 and thus locks the spring against unwinding.

The receiving spool 17 of the caption duplicating band is normally maintained under winding tension through the chuck 27 by means of a helical spring 44 (Fig. 7

which latter is contained in a circular case 45 located within a lateral pocket 46 in the side-frame member 7.. The outer end of said spring is securedat 47 to the .rim of the case 45 and its inner end is secured at 48 to a shaft 49 journaled at one end in the wall of the pocket 46 and at its opposite end in an upstanding bracket 50 secured to the side-frame member 7. The sprlng case 45 1s loose on the shaft 49, and secured to one face is automatically bent nose of which is adapted to engage one of a series of holes 56 formed in the ratchet disk 53, the dog 55 being normally pressed into such engagement by a leaf spring 57. The dog is automatically retracted upon the insertion of the spindle of the spool in thechuck 27 by means of a bent lever 58 pivoted between its ends to the bracket 27, its upper end underlying-the dog 55 and its oppositeendextending into the vicinity of and slightly in front of the chuck 27 so that, upon the insertion of the spindle in the chuck, the head of the spool strikes said lever and retracts the dog 55, thus leaving the spring 44 free to exert its winding tension upon the chuck 27. The spring 44"1s wound up from time to time by a handle 59 fast on the shaft 48; while back turning of the shaft 49 under the expansive effect of the spring is checked by a ratchet disk 60 fast on shaft 49 and engaged by a spring-pressed dog 61.

The tensioning spring 33 of the receiving spool 15 of the item duplicating band is wound up by the manual retraction of the gripper and automatic travel-limiting de vices of the item-duplicating band when said gripperi's moved backwardly relatively to the band for a new engagement with the latter. These last-mentioned features will next be described, and the friction drive therefrom to the shaft 31 on which the sprin 33 iswound will then be set forth.

Referring more particularly to Figs. 4, 5, 6 and 8, 62 designates a guide-strip secured to the inner face of the side-frame member 5' along its upper edge, between ed, in its forward movement, to override the upper edge of the longitudinally alined sideframe member 7 of the other section of the machine, as shown in Fig. 6 Thevbar 64 performs several functions, chief of which are to carry the gripper or clamping device of the item-duplicatingband and to furnish a support or carrier for .a row of stop pins to assist in the measurement of the successive movements of the item-duplicating band and in the automatic arrest of the latter at the termination of each movement.

Referring .first to the gripper, the construction and operation of which is most clearly shown in Figs. 3, 13 and 14, 65 designates a metal strip extending between the opposite side frame 'members, the main intermediate portion of said strip lying beneath the bed 19, and the upwardly offset" end portions 65 and 65 (Fig. 13) lying substantially flush with and opposite the longitudinal edges of the bed 19. The end 65 slidingly rests upon an inwardly exso as to be, opened in unison by the deprestending ledge 01' shoulder 66 of the sideframe member 6, while the opposite end 65 has integral therewith or secured. thereto an extension 67 overlying and rigidly secured to the top of the bar 64. The upwardly ofiset end portions 65 and 65 of the strip 65 constitute stationary clampmembers for engaging the longitudinal edges of the item-duplicating band 13, as

shown in Fig. 12, and pivoted to the ends of the stationary clamp-members 65 i and 65 on hinge pintles 68 and 69 are movable clamp- jaws 70 and 71, respectively. Rigid with the clamp-j aw 70 is an operating handle 72. The two. movable jaws are connected sion of the handle 72 through the agency of depending lugs 73 and 740m the under sides of the clamp- jaws 70 and 71 andprojecting through slots 75 and 76 in the stationary clamp-jaws, and'links 77 and 7 8 pivoted to said gs 73and 74 and to the opposite ends of an intermediate lever 79, which latter is centrally pivoted at 80 to the under side of the strip 65. Tension springs 81 and 82 connected to the links 77 and 78, respectively, and at their other ends-anchored to the under side of the strip normally operate inopposition'to the depression of the' handle 72 and maintain the movable jaws and 71-closed on theedges of the band. -The outer edge of the bar 64 is,

' throughout the greater portion of itsllength,

provided with a-series of closely disposed vertical holes 83 extending therethrough,

best shown in the detail views Figs. 9 and 10, in each of which holes is slidably mounted a pin 84 of a length somewhat exceeding the length of the hole, and each ,of said pins is given a limited vertical sliding capacity so as to project either above or below the bar 64 by means of a springpressed key 85 slidably mounted in a horizontal socket in the bar 64 and engaging a groove 86 in the pin 84. The key 85 serves to both limit the extent of movement of the pirn 84 and to hold it frictionally in position when raised. Depending-from the bar 64 just inwardly of the row of holes 83 and 90 on the rod 89, and an upper portion 90 overlying the bar 64, the inner depending side of which rests slidingly upon said-bar and has secured thereto a bent sheet metal strip 91 (Figl 8) having an inwardlybent an upwardly extending finger 95.

fined between the bearings 90 and 90 is a hub 92 rigid with which is an inwardly pro jecting arm 93 having a tapered tip 9%{ and i id with the hub 92 on the outer side thereo is an arm 96 that projects through a slot 97 in the depending portion of the carrier 90 and carries a button 98, by the depression of which the finger 95 is moved upwardly so as to raise oneof the stops-pins 84 from its normal position in which it projects below the bar 64 to its raised or stop position in whiph it prpjects thereabove. The finger 95 is guided into engagement with the lower end of the pin by the engagement of the tip 94 between two adjacent teeth of the guide 87. A leaf spring 99 is secured to the carrier casting and at its free end underlying the arm 96 returns the latter to raised poe sition when free, thus normally maintaining the finger 95 out of engagement with the pins 84. The carrier 90 is also equipped with means 'for manually returning the raised pins to lowered position and with means for arresting the backward travel of the carrier under the influence of a spring-retracted device hereinafter described. The pin-depressing device consists simply/0t a. bolt 100 slidabl'y mounted in the upper portion 90 of the carrier, said bolt having on its lower end a head 101 of suflicient diameter to engage two adjacent pins and on its upper end a button 102 for depressing the bolt, the latter being normally maintained .in elevated position by a spring 103 between the top of the carrier and the lower side of the button 102. The carrier 90 and, of course, the pin-raising mechanism which is housed therein, is normally urged in a backward direction relatively to the bar 64 by means of a tape 104 (Fig. 2) that is attached at 105 to the rear end of the carrier 90 and at its other end is wound around a spring-actuated drum 104 2) in a circular casing 106 secured'tq the bar 64 at or nearits rear end. The carrier 90 is re strained against this backward pull by means of a pivoted stop. pawl 107 that is mounted in the carrier 90 and has a transversely bent end 108 that abuts against any one of the series of pins 84 that may have The pawl'107 has at its forward end an inclined face 110 that, each time the carrier 90 reaches the forward limit'of itstravel, engages a fixed horizontal pin 111 (Fig. 3) that projects. inwardly from the upper end of a bfacket 112 secured to the side-frame member 5, whereby the carrier 90 is released from engagement with the foremost of the series of raised stop-pins and is automatically drawn.backby the tape 104 until the pawl 107 engages the next of the series of raised stop-pins and arrests the carrier thereat.

The bar 64 is normally urged forwardly or in the direction of the caption end of the machine by a helical spring 113 (Fig. 8) secured at one end to the side frame 5, as shown at 114, and at its other end at 115 to the hub 116 of a spur gear 117 mounted preferably by anti-friction balls as shown, on a shaft 118 secured in the frame members 5,

- said gear 117 directly engaging the rack 63 of the bar 64. The spring 113 is re-ten-' sioned by the manual retraction of the bar 64 by the operator when retracting the band clamp for a fresh grip upon theband. In this connection I will describe the means whereby the same. manual retraction of the so that said pin 84 is depressed by sli under side of sai bar 64 maintains the spring 33 of the receiving spool of the band under tension. Still referring to Fig. 8, on the shaft 118 is a friction disk 119 engaging one face of the spur gear 117, fast with which friction disk is a ratchet disk 120 engaged'by a pawl 121 mounted on the adjacent face of a spur gear 122, this latter also being rotatably mounted on the shaft 118. The gear 122 meshes with and drives a gear 123 fast on the shaft 31, and a ratchet disk 124 engaged by a pawl 125 (Fig. 6) prevents unwinding of the spring through back turning of the shaft 31. From this it is evident that the rotation of the spur gear 117 under the return travel of the rack 63 through ,the connections described winds up the spring 33 to the extent permitted by the friction disk 119, which latteris capable of adjustment by means-of nuts 126 and washer 127 on the inner end of shaft 118. To prevent undue friction, anti friction balls are employed between the hubs of the several rotary members on shaft 118 and the frame 5 and washer 127, as shown at 128, 129 and 130. The bar 64, when retracted to its extreme limit, is automatically arrested in that osi'-' tion by means of the engagement of the oremost of the row of pins carried by the bar 64. Said pin, designated by 84 1s, unlike the others, normally spring-pressed to the upwardly projected position, and the under side of the upper end of the bracket 112, which projects inwardly over the upper side of the bar 64 is beveled or inclined on its under surface, as shown at 112*. in Fig m'l,

in contact with the incline bracket and, when it has passed the latter,

springs up into stop engagement with the inner. end of said overhanging portion of the bracket. Said pin is depressed so as to release the bar 64 when the item apron is to be advanced, by manual depresslon of a lever 131 (Figs. 1, 2 and 3) thatis pivoted at 132 to the outer face of the bracket 112 and has an inwardly and transversely extending finger 133 overlying the row of pins in the bar 64, the lever 131 and finger 133 being normally raised against a stop projection 134carried by the bracket 112 by a spring 135 (Fig. 2). When the bar 64 is fully retracted, the depression of the lever 131 forces downwardly the foremost springactuated stop-pin 84, allowing the bar 64 and the gripper carried thereby to move forends of the pins 84 and, through the carrier 90, finds an abutment against the fixed bracket 112. This device is designed to be set in interlocked relation to that one of the row of pins which lies opposite the point on the item-duplicating band just below the last item or group of items thereon, and, as

herein shown, consists of the following parts. I

136 designates a slide thatQby a hub or sleeve 137, is slidably mounted on the guide-rod 89 and operates over the outer vertical face of thebar 64, having inwardly projecting guide flanges 138 maintaining its engagement therewith. To this slide is pivoted at 139 bya friction joint a longitudinally extending latch-member 140. This latchmember has an inwardly extending lateral finger 141- lying directly below the pins-84,

and it also has formed in its lower edge a notch 142, its forward end being rounded or curved from' the forward edge of saidnotch up to the tip of the latch, as shown at 143 in Fig. 2. The carrier 90 has alaterally projecting index pointer144, best shown in the detatil view Fig. '8, that overlies a table 145 detachably mounted on the sideframe member 5of the machine, on which table the master-sheet to be copied is laid. When the carrier 90 is retracted and positioned with the index pointer 144 just below the last item or group of itemson the master-sheet, the arm 93 of the pin-elevating device slides under the canrshaped end of the latch 140' and interhooks with the notch 142 thereof. The subsequent depression of the arm 96, not only raises one of .the pins 84 by'means of the finger 95, but

also raises the latch 140, causing the finger 141 thereof to raise the next pin 84 in rear ofthat raised by the finger-95, so that saidv finger141 interhooks, as it were, with the next depending pin 84 in rear thereof so that, withwthe latch 140 in the said position, the bar. 64 cannot advance farther without '-carrying the latch 140 and its supporting which the firstof the row of stop-pins is to be set up. This raising of the latch 140 into interengaging relation with the'pins of the bar 64 allows the arm 93 to drop out of engagement therewith when the pressure on the arm 96is released, and consequently the carrier 90 advances alone to the several other positions at which its pointer 144 lies opw '0 vcated adjustment on the scale 151.

posite the spaces between successive items or groups of items on the master-sheet.

Passing now to a consideration of the means for controlling the caption duplicating band 14,-146 designates as ari entirety a gripper which is a duplicate of the gripper already described for controlling the itemduplicating band and has a similar laterally projecting handle 147 by which it is opened for the purpose of a fresh adjustment upon the band. The handle end ofthis gripper, however, slidably engages a horizontally slotted guide 148 that may be suit ably graduated in inches or other measurements, as indicated in Fig. 3, its extent of bodily travel being determined by the inner end of the slot of the uide 148 and a stop shoulder149 (Fig; 2) ormed on the end of an adjustable gage-bar 150, which latter is slidably confined between the vertically depending portion of the slotted guide 148 which secures the latter to the frame-member 7 and a horizontally slotted scale-bar 151 also secured to the side-frame member 7. The inner end or shank of the bar 150 carries a screw threaded clamp 152 the stem or shank of which slidably engages the slot 151 of the scale-bar 151, the latter being graduated, as indicated, corresponding to the .graduations of the slotted guide 148. By-

setting the clamp 152 at any one of the graduated positions indicated on the scale 151,

the stop 14% is so positioned as to permit a to-and-fro movement of the band gripper 146 to an extent corresponding to the indi- This graduated adjustment is preferably provided, so as to insure an advance travel of the caption duplicating band to an extent corresponding with varying heights of cap- .For ineeassv depth is to be transferred to the band, the

gripper will be set for a one-inch travel so that, when the band is advanced to carry the impression of the one-inch caption out of the pr1nting field, the advance movement will'be limited to an extent'just suflicient to so carry the one-inch caption out of the printing field and no more, thus utilizing the entire band for printing purposes and avoiding waste of space between successive captions. v

Inasmuch as the receiving spools of both bands are normally under windmg tension at all times when said spools are in operative position in the machine, it is necessary, when the band-gripping devices are released in order to be retracted to a fresh hold upon the band, to provide means for preventlng the winding up of the hands during those into engaging relation to theratchet dlsk'by aspring 155, but is normally revented from such engagement by a depen ing outwardly turned finger 156 overlying the tail of the detent carried by a bar 157 that is sup orted by laterally offset pivots 158 carried guy inwardly projecting brackets 159 on the frame member 5, so that said bar normally tends to tip or rock on its pivotsv in a direction to raise the finger 156 out of engagement with the detent pawl 154. When the clamps of the gripper are closed on the belt, as shown in Fig. 13, this bar'157 is maintained in an upright position in which the finger 156 retracts the awl 154 from its ratchet by means of a epending finger 160 secured to the under, side of the link 7 7 of the gripper and slidingly engagi'n the inner face of the bar 157. The instantt e clamps of the gripper are opened the finger 160-is1retracted, allowing the bar 157 to rdck/on its pivots and the finger 156 to rise out of 'en agement with the pawl 154, 'whereupontthe latter instantly snaps into engagement with the ratchet disk 153 and-thus prevents the receiving sppol from drawing the bandofi the deliveryspool. A duplicate of this mechanism is employed for the control of the de livery spool of the ca tion-duplicating band at the opposite end'o the machine, the parts of said mechanism being identified by the same numerals with an alphabetical expo eating band, as well as of the item-duplicating band, when the machine is re-primed for a new master-sheet,-to so interlock the gripping devices of the two bands that the grip ping device of the item-duplicating band cannot ordinarily be reset to a fresh posix tion on the band without having first manipulated the gripping device of the captionduplicating band. In the present machine I have provided a mechanism of this character, which will now be described.

Referring principally to Figs. 6 and 12, 161 designates a pawl pivotally mounted at 162 on the inner wall of the frame-member 7, said pawl having an upwardly extending nose engaging the teeth of the rack-bar 63 in a manner to permit forward movement of the rack-bar but locking the same against return movement until the pawl has been thrown out of action. This pawl is provided with a depending toe 163 which, as best shown in the detail view Fig. 12, has two diflerently inclined faces 163 and 163*. A leaf-spring 164 has an angularly bent free end presenting two oppositely inclined faces 164? and 164 the former of which engages the face 163 of thetoe of the pawli when the latter is engaged with the rack-bar and holds it in such engagement, while the .face 164 engages the face 163? offthe pawl when the latter is out of engagement with the rackbar and holds it disengaged from the latter. The pawl 161 is in' engagement with the rack-bar during the forward travel of the latter; and, consequently, before the rackbar, and the gripper of the item-duplicating band attached thereto, can be returnedto 1n1t1al position, it is necessary to disengage .the pawl from the rack-bar. This isdone 161." When the rackar.has reached the limit of its advance or forward travel and it is necessary to return the same and the gripper of the item-duplicating band to initial position for a new oldon the latter, the

depression of the handle of the caption-dur plicating band permits the pivoted strip 157 to rock, thus, through the rise of the finger 167 rocking the lever 165 and, through the pin 168, depressing the pawl 161 out of en:

gagement with the rack-bar. This causes the ,free end of. the spring 164 to snap into engagement with the other face 163 gOf the toe of the pawl, as shown in Fig. 12, thus holding the latter disengaged and permit- I ting the free return of the rack-bars This release of the pawl from the rack-bar takes place 'while the operator is manipulating the gripper of the caption-duplicating band to set it to a fresh position on the latter, so that the manipulation of the caption-duplicating band to insure afresh surface of the latter forthe next impression is insured before the item-duplicating band can be primed to receive the next impression. The pawl 161 is automatically thrown back into rack-engaging position upon the complete return or re.- traction of the rack-bar by means of the engagement of a finger 169 mounted on the forward end of the rack-bar inwardly of the inner side of the latter with the free end of a spring 170 securedto the hub of the pawl, the free end of said spring projecting into the path of said finger and, when struck by the latter, throwing the toe of the pawl back from the position shown in Fig. 12 to the position shown in Fig. 6 in which the pawl engages the rack-bar for the next operatlon. To insure the rocking of the pivoted strip 157. in a direction to raise the fingers 156 and 167, the gripper 146 of the caption-c111- plicating band may be provided with a depending finger 160 on the opposite side of the strip 157 from the finger 160, the finger 160 insuring the downward rocking movement of said strip, while the finger 160 effects the return of said strip to upright position (Fig. 7

It may sometimes happen that the number of items or groups of items to be printed under a single caption may be greater than can be accommodated by a single working surface of the item-duplicating band, so that it may be necessary to manipulate the item-duplicating band several times in succession to obtain the requisiteprinting space for allthe items under a single caption. In

order, therefore, to be able to so manipulate the item-duplicating band without having to manipulate the gripper of the captionduplicating band preliminary to each retraction of the gripper ofthe item-du'plicating band, I provide a manuallyjoperable device'for temporarily locking the pawl 161 out of engagement with the rack-bar, irrespective of the travel of the latter; this device comprising a pin, 289 (Fig. 6) carried by a slide 240 (Fig 2), the latter being mounted in a slideway 241 formed in or on the side-frame member 7 saidpin extending l through a horizontal slot 242 in said side frame mefnber and adapted, by a knob 243,

to be moved into and out of engagement with a notch 161 formed in the loweredge of the pawl 161, the relation of the pin to said notch bein such that, when the pin is moved toward t e pawl, it'engages the lower inclined edge vof the notch, throwing the pawl down out of engagement with the rack and'holding it so disengaged until manually released by the retr'action'of the pin 239.

The two longitudinal sections of themachine frame are secured together by a latch 171 (Fig. 6) pivoted at 172 to the side-frame .member 5 and engaging a lug 173 on the'bot- .tom rail or shoe of the side-frame member 7. In order to form a practically. continuous bed for the two sections of themachine. I interpose between the individual beds of the sections a transversely extending bridge-bar 174 (Figs. 4 and 6) which is pivoted at 175 to the inner end of one side of the section carrying the item-duplicating band, permitting it to be swung upwardly, out of the way when the machine sections are to be separated.

An idler roll 176 (Fig. 6)}journaled on the inner wall of the side-frame member 7 constitutes an antifriction support for the advancing end of the rack-bar as the machine is operated.

h In lugs 177 and 178 (Figs: 1 and -3) formed on extensions of the stationary hinge-members of. the grippers are slidably' mounted spring-retracted locking bolts 179 and 180, respectively, the inner ends of which, when pressed inwardly, engage notches 181 and 182 formed injthe gripper handles 72 and 147, whereby the clamps or jaws of the grippers may be locked open when desired. v The successive advance movements of the item-duplicating band, which result from both" the spring tension on the receiving spool and the spring actuation. of the gripper-carrying rack-bar, and the sudden arrest of the latter at the end of each successive movement by the stop devices described, produces a somewhat sudden or. jerky movement of the band which tends to unwind from the delivery spool more of the band than is wound up on the receiving spool, thus producing slack in the band near the former. To neutralize this effect and maintain the printing surface of the band taut,

I preferably employ the device shown in Fig.-

6 consisting of an arm 1'83 pivoted at 184: to

the inner wall of the side-frame member 5- and lying adjacent tofthe inner face of the ratchet-disk 153, said arm being normally impelled to swing in a downward direction by a spring 185. The free end of this aim carries a dog 186, the nose of whichis kept "in engagement with the toothed periphery' of theratchet-disk by a spring 188. The ratchet-disk 153, it 'will be remembered, is rigid with the chuck 25 of the delivery spool, and when the'latter turns in a direction to unwind the band the arm 83 is raised and as soon as the unwinding movement of the spool ceases, the return 'downard movement of thearm 183 under the impulse both of gravity and the spring 185', imparts a short ing surfaces of the duplicating bands.

winding up movement to the delivery spool *which takes out any slack that may have occurred in the band itself. I also preferably apply to the chucks of the receiving spools of both bands a somewhat similar device which, however, is manually operated, when necessary, to render the. bands perfectly taut and smooth out any wrinkles that may occur therein. a

Referring to Figs. 2 and 6, 189 and 189 indicate arms freely pivoted on the spindles of the chucks 26 and 27, respectively, the free adjacent ends of said arms having finger- pieces 190 and 190 projecting laterally between the adjacent ends ofthe side-frame members 5 and '7. Said arms are normally upheld by springs 191 and 191 and carry spring-pressed pawls 192 and 192 engaging the ratchet-disks 40 and 53, respectively. In case the spring drive imparted to the chucks 26 and 27 of the winding spools is insufficient torender smooth and taut the printing surfaces of the bands, this can be effected manually by depression of either or both of the arms 189 '189 by the fingerpieces 190 and 190.

I will next describe the platen and its operating and 'adjunctive devices whereby pressiire is imparted to the master and copy sheets when the same are laid on the print- This device, generally described, comprises a hollow cylinder rotatably mounted in a suitable frame, which latter is slidably and pivotally mounted at one end on a supporting rod secured to one side of the machlne opposite and parallel with one edge of the printing b ed. Associated with the cylinder is a clamp with means for opening the same to receive the upper edge of the'sheet and for closing the clamp on the sheet when the cylinder is set in initial position to roll over the printing surface of the duplicating bands. As the cylinder is thus advanced, a

spring between the cylinder and its frame is tensioned ,so that, when the cylinder'is raised from the duplicating band, it automatically rotates in the opposite direction, unwinding and delivering the sheet. Also ,associated with the cylinder are suitable guides for facilitating the entrance and delivery of the sheet and the smooth and accurate winding of the sheet on the cylinder. Fora detail description of this mechanism, reference may be had to Figs. 1, 2, 3, 5, .15 and 16 o f the drawingsv I Referring first to Figs. 1 and 3, 193 designates a' rod that is secured in an anglebracket 194 attached to the upper rear corner of the side-frame member 6 as by a set-screw 195. This rod passes through and slidably,

engages a similar angle-bracket 196 attached to or near the forward upper corner of the side-frame member 8. Slidab'ly mounted on the rod 193 by separated bearings 197 and 197"-.in a carriage 197. Se-

cured in a socketed bearing in the upper 3 vided with a longitudinal depression 201",

shown inFigs. 15 and 16, in which lies a clamp-bar 202, said clamp-bar having at its ends arms 203 pivoted at 204 to the end' walls of the cylinder and normally impelled to clamp-closing position by springs 205. Loosely mounted on the spindle 198 between one end of the cylinder and the adjacent arm of the bail, is a spring case 206 containing a helical spring 207, one end of which is attached to said spring case, while the other end is secured to a pin 208 projecting eccentrically from the end wall of the cylinder. A laterally projecting, lug 209 on the outer wall of the spring caseabuts against the adjacent arm of the hail, the latter thus con- 'stituting a stop for one end of the spring,

and the latter is so wound that, as the cylinder is rolled from the caption-recording'end of the machine toward and over the itemrecording end, the spring is wound up, so that, when the cylinder is raised angularly" on the pivotal bearings 197 and 197", of its carriage, and the bail is swung to one side to release a detent device, hereinafter described, the spring unrolls the sheet from the cylinder. 5

Rigid with the carriage 197 is a horizontal bar 210 extending across and above the bed of the machine and parallel with and in front of the cylinder relatit ely to its direction of working travel, which'bar has at its opposite end a rearwardly and upwardly bent arm 211 (Fig. 2), the upper portion of (See Fig. 15).

' the bal which constitutes a bearing for that end of the spindleofthe cylinder. This bar and its inwardly extending arm constitute supports for several accessory" devices, the bar 210 itself supporting" a guide chute 212 which directs the'entrance anddischarge of .the paper. The chute 212 has, as best shown in Figs. 15 and 16, a downwardly turned lip 213 that projects below the lower edge of the bar 210 and guides the edge of the paper sheet directly into the clamp 202 In order to open the clamp 202 to receive the upper margin of the sheet, one arm of is provided with a laterally extending arm 2 14, -to the end of which is pivoted a pawl 215, the nose of which is normally L pressed toward the-end of the cylinder by a spring 216, in which position it abuts against a pin 217 on the latter so that, when the bail is swung to the right as shown in Fig. 15, the cylinder is partially rotated in the same direction until outwardly projecting lugs 218 on the clamp-supporting arms 203 abut against inwardly extending stops 219 on the carriage 197 and arm 211 at the opposite end of the cylinder. The slight clined surface 211 on the arm 211, as clearly shown in Fig. 5.

For correctly positioning the platen cylinder at the start, Iprovide in connection with the graduated scale 151 a guide for the free end of the cylinder-supporting frame (constituted by the carriage 197 bar 210 and arm 211), said guide, as best shown/in Figs. 2 and 3, consisting of an inwardly extendcontinued rotation of the cylinder permitted by the extensible character of the springs 'gagement of the tail of the pawl with an ining'plate 220 that is integral or rigid with a the gage-bar 150 and is supported on the upper edge of the scale 151. The plate 220 has on its inner edge an upstanding rest 221 adapted to support a laterally'ofiset depending arm 222 (Fig. 3) on' the arm 211; and said depending arm 222 carries a laterally ofi'set lug 223 that, as the cylinder is moved off the rest 221, engages an upright post 224- integral with the plate 220 and drops throughfa vertical notch 225, out of engagement with the guide 220. Pivoted to the outer edge of the guide-plate 220 by a depending hinge bracket 226 is a horizontally extending gage-arm 227 having an upturned flange 228 in transverse alinement with one edge of the notch 225 which marks the tangent line of the platen cylinder in the initial position of the latter. The gagearm 227 coiiperates with the: detachable table 145 on which the master-sheet is laid preliminary to its application-tn the duplicating bands, as hereinafter described. The

platen cylinder having thus been a, correctly

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