US2536606A - Master sheet advancing means for duplicating machines - Google Patents

Description

Jan. 2, 1951 H. JAGGER 2,536,606

MASTER SHEET ADVANCING MEANS FOR DUPLICATING MACHINES Filed March 15, 1948 l 5 Sheets-Sheet l 1N V EN TOR.

Jan. 2, 1951 JAGGER 2,536,606

MASTER SHEET ADVANCING MEANS FOR DUPLICATING MACHINES Filed March l5, 1948 3 Sheets-Sheet 2 IN VENTOR.

J6 16 Hubs/T H. JAGGER Jan. 2, 195i MASTER SHEET ADVANCING MEANS FOR DUPLICATING MACHINES 5 Sheets-Sheet 5 Filed March l5, 1948 ....@HNMMGN L INVENToR. ola/bem( Jgger' end plates 22 and 23 and secured thereto as by welding or other approved means. The shell 24 is provided with a recess or aperture 25 which is defined by longitudinal edges 26 and 21. Parallel with the edge 21, the shell is provided with an aperture 28 in the form of a slot between which edge and slot is an address section of the drum designated by the reference character 29. The portion of the cylindrical drum surface lying between the edge 26 and the slot 28 is designated by the numeral 30 and constitutes a portion of the drum which carries the message master when the latter is in use.

Above the drum is a platen roller 3| mounted for rotation on a shaft 32 which is journalled adjacent its end in a pair of arms, each designated by the numeral 33. Each arm is pivotally mounted on a stud, or the like 34, carried by one of the side plates ID or as shown in Fig. 4. Springs 35 are secured to each of the arms 33 and are anchored at the opposite ends to studs 36 which project inwardly from the side plates l and for pressing the platen 3| normally against the cylindrical surface of the drum. The platen 3| is of greater length than the length of the openings or apertures 25 of the drum, and hence is prevented from entering the aperture during rotation of the drum by the arcuate portions 2|a at the ends of the aperture. Each of the arms 33 which support the platen contacts a shaft 31 which is eccentrically mounted adjacent its ends in the plates l and l| to provide adequate cam throw for lifting the arms 33 from the position shown in Fig. 3 for moving the platen 3| out of contact with the drum. The shaft 31 projects through the side plate l0, as shown in Fig. 7, and is provided with a knob or handle 38 whereby the shaft may be rotated for raising the platen out of contact with the drum when the machine is not to be used for a period of time or for lowering the platen into Contact with the drum prior to use of the machine. The elevation of the platen from contact with the drum during periods of non-use is desirable in avoiding the formation of flat spots upon the platen which generally V isof rubber or rubber-composition material.

A message master sheet may be attached to section 30 of the drum by any suitable means. Where the message master comprises a sheet having .the message typed or otherwise impressed thereon in copyable ink with the characters in reverse or mirror form, a simple U-shaped clip 39 may be provided for attaching the advancing or forward end of a sheet over the edge 26 of the-drum portion 30. The bottom or rear edge of the sheet may be lefty free. The clip 39 may be of thin sheet metal corresponding in length approximately to the length of the edge 26 and may readily be removed from the drum after the completion of a run of messages or in substituting one message master for another. Any other suitable clip or fastening means may be employed, as will b e obvious.

`In Fig. 2 of the drawing, numeral 40 indicates in dotted lines the portion of a message master upon the drum, but as will be pointed out hereinafter, the message master preferably is removed from the drum when the address master is in the operative position shown in Fig. 2. The machine illustrated is provided with a feed table 4| extending between the side plates I0 and The feed table is shown as having depending flanges 42 which are secured by screws 43 to the side walls. This construction gives further rigidity to the frame of the machine. Where the machine is of the spirit or liquid type, a tank is provided for holding a supply of moistening fluid. In the form of the invention shown, the tank may be constructed as a part of the feed table. For example, in Fig. 2, the tank is shown as disposed between the flanges 42 and is secured thereto by any approved means, such as welding. The tank is thus disposed immediately beneath the feed table 4| and is adapted to carry a supply of liquid 44 which usually is a mixture of ethyl alcohol and water. Liquid may be placed in the tank through a filling opening 45 which is provided in the table 4| until the level thereof reaches an overflow port 46 provided in the frame end of the tank.

Disposed within the tank is a moistener roll 41 usually of rubber composition. The moistener roll is mounted upon a shaft 48 (shown, actually, as consisting of two stub shafts) which extends through slots 49 provided in the side wall of the tank and which is journalled at its ends in the side plates IU and As shown in Fig. 3, the upper surface of the feed table 4| is disposed in a plane substantially tangent to the upper arc of the moistener roll, the feed table terminating short of the roll, as indicated in said figure. Above the moistener roll is located a feed roll 5U which is journalled at its ends at the side plates I0 and Il and contacts the surface of the moistener roll and is driven thereby by friction as the moistener roll is rotated. The moistener roll itself constitutes a feed roll also since it cooperates with the feed roll 5|! for advancing copy sheets successively into the bight between the drum 2| and the platen 3|. The copy'sheets are fed manually along the table 4I into the bight between the moistener roll 41 and the feed roll 50, in the machine illustrated, but an automatic feeding device may be employed if desired. The feed roll 5B may be of metal and preferably has its surface area provided with circumferential grooves, or it may be threaded for the purpose of reducing its superficial area and thus reducing the amount of liquid that it may pick up from the moistener roll 41. The shaft |1 at the end opposite the handle 20 is provided with a pulley 5| which, by means of a belt 52, drives a pulley 53 secured on the shaft of the moistener roll 41 for rotating the latter within the liquid and applying moisture to the lower surface of the copy sheets, cards or envelopes, as the latter are advanced between the moistener roll and feed roll 50 into copying contact with the drum.

It will be seen that by rotating the shaft I1 by means of crank or handle 2@ (it being assumed that the shaft and drum are operatively connected), the drum will be rotated in the direction of rotation of the handle which normally is clockwise during duplicating operations. The rotation of the drum effects rotation of the moistener roll 41 in the same direction. As a copy sheet upon the table `4l is advanced into the bight between the moistener roll 41 and the feed roll 5B, it will be engaged by'said rolls and fed horizontally into the bight between the drum 2| and the platen 3|. As the copy sheet advarices over the moistener roll d1, it will be given a light application of moistening liquid.

Referring to Fig. 2, it will be seen that if a copy sheet 54 on the table 4| is fed into the bight between rolls 41 and 50 before the rotation of the drum 2| is started from the position shown in said figure, the forward end of the copy sheet 54 will move into the bight between the drum and the platen substantially concurrently with the movement into that position of the advancing end of the message master 40. Asthe drum is further rotated, the moistenedlower surface of the copy sheet will be pressed into `contact with the upper or outer'surface of themess'age master and there will be imprinted on'jsthe copy sheet the message carried by the master; For the purpose of effecting the desired uniform disposition of successive copy sheets'vupon a master, means are provided which tendtogal" rest the drum upon each rotation thereof inthe proper position for effectuating such vregistration or margin-bar effect. The means referred ,to comprises an arm 55 pivotally mounted at 5 5 uto the wall II of the machine and carrying avroller 51, the arrangement constituting an arresting pawl. The arm 55 is held by a spring 581.1113- wardly against the adjacent cylindrical endportion of the drum whereby the rollery 51 tends l'to seat in a detent or recess 59 provided in said portion of the drum. This detent is indicated most clearly in Fig. 5. Hence, a user can rotate the drum without diiculty after a little practicefto the position where by reason of the entrance of the pawl or roller 51 into the recess 59, the drum tends to come to a stop. With the drum in vthat position, a c opy sheet is fed from the tablerito the stop provided by the bight of the rolls' 41 and whereupon rotation of the drum through 360 of arc will effect feeding of the copy sheet into and through duplicating relation with/the master, thus making a copy. As each sheet moves from beneath the platen 3I, it will be deposited by gravity upon a tray 65 which is shown pivotally rod I2. This tray may be swung to the vertical position shown in Figs. 2 and 3 to form a closure for the end portion of the machine when the machine is n ot in use, and can Ybe releasably held in such position by a removable flanged cover 52 shown in Fig. 3. In the use of the machine, the cover 62 ispremoved and the tray 80 is lowered to the horizontal position indicated in Fig. l to provide a receiving tray for the copies that issue from the machine. Y When the vmachine is to be used vfor addressing cards orf envelopes, the message master 40 and the holding clip 39 therefor, preferably are removed from the drum. An address master is then inserted in the drum, if not already therein2 the master comprising an elongate sheet 63. car-'l rying in spaced relation thereon, the addresses desired. These addresses are printed, typed or written upon the address master in reverse,;that is, in mirror characters. The address master initially is wound upon a spindle 54 having afdiametrical slot through the central portion there'- of throughfwhichthe first end of the master may be inserted for anchoring that end of the master for winding purposes. The ends of the spindle are mounted upon rotatable studs and 6B as shown in Fig. 6. Stud 65 'is provided with a cross pin 61, the ends of which engage in a diametrical slot 68 provided in VtheV adjacent end ofk the spindle. The stud 56 is provided witha spring 59 which tends to force the stud inwardly while permitting it to be pressed manually in an out- `ward direction preparatory to inserting or removing the spindle from operative position. The studs referred to are mounted in bushings 10 and 1I -provided in the opposite ends of the drum.

For the purpose'of preventing the spindle 54 from unwinding undesirably, a suitable brake or friction device may be provided such as the member l2 which is pivotally mounted at 13 on the attached by means of ears 6I to thetie end `22 of the drum and is provided at an oppo site end with a spring 14 which holds the brake against a collar 15 which is securedto the end of the stud 65. Upon inserting a spindle 54 in the drum through the aperture 25, and mounting the same upon the studs 65 and 66; above described, the free end of the address master is passed outwardly of the drum through the aperture'25, over vthe section 29 of the drum, and inwardly through the slot 28 where it is attached to a second or wind-up spindle 16. Spindle 16 is similar to spindle 64 and is mounted at one end upon one stud 11 corresponding to the stud 65 and at the 4other end the spindle is mounted upon a stud 18 journalled in a bushing 19 carried. by the end wall 22 of the drum and having attached to the outer end' thereof a gear 8 0. Rotation of the gear 80 in clockwise direction, as viewed in Fig. 3, will rotate the spindle; 16 in the same direction and cause a feeding ofthe elongated address master from the spindle 84 over the surface 29 of the drum to the wind-up spindle. as will be seen.

The gear 80 constitutes a portion of the means by means of which the address master may be advanced for locating addresses thereon in succession upon section 29 of the drum, and likewise constitutes a portion of the means by Ameans of which rotation of the shaft I1 effects rotation of the drum 2 I in a clockwise direction during duplif eating operations. As'shown in Fig. 3,A a second gear 8 I is provided between the drum end 22 and the adjacent wall IIJ of the casing and isl mounted upon the shaft I1 for rotation thereon.;v Extend` ing through the shaft I1 is a relativelyxed pin 82 which pivotally carries at one end a pawl83 arranged for engagement with the teeth of the gear 8| and having attached at its other end a spring 84 which is secured to the pawl 83 and tends to hold the same in engagement with the teeth of the gear 8I. In the relative position of the parts shown in Fig. 3, the rear or pivoted end of the pawl 83 is in abutting contact with the gear 80 and hence rotation of the shaft I1 in a clockwise direction beyond the position shown in Fig. 3, will producerotary movement of the drum in the same direction. The drum-driving rela-A tion of the parts just referred to is the relation occupied by them when the drum is rotated in a clockwise direction during duplicating opera-v tions.

During the duplication of successiveaddresses upon cards `or envelopes, it is necessary that the address master be advanced to bring a new address into duplicating position upon section 29 of the drum prior to each duplication operation. For accomplishing the advancement ofv the address master, the drum is moved to the position shown in Fig. 3, that is, with the roller 51 located within the recess or detent 59 of the drum. The handle 28 is then moved in a counterclockwisefdirection (as viewed in Fig.' 3) which, by reason of the engagement of the pawl 83 with a, tooth of the gear 8|, will cause the gear 8| to rotate counterclockwise.. The drum is retained against rotation during this counterclockwise movement by the holding action of the pawl roller 51. The extent ofthe counterclockwise movement is limited by engagement of the for-e. ward end of the pawl 83 with the collar 15. Dur-V ing such counterclockwise movement of the gear 8I,'it effects clockwise movement ofthe gear 80 by reason of the meshing of the teeth of; said gears. A holding pawl a, pivotally attached to the end 22 of thedruxnand retained in engage?` agasaeoc ment with the gear 80 by aV spring aub, permits Such clockwise movement of the gear but prevents counterclockwise movement thereof. Clockwise movement of the gear 80 rotates windup spindle 16 clockwise,` as viewed in Figs. 2 and 3, and thus advances the address master to bring a succeeding address thereon into duplicating position upon the portion 29 of the drum. When such new address has been brought to the. position stra-ted, the handle 2i) and thus the shaft l1 is rotated clockwise. During such clockwise rotation', thegears 8i and 86 are not rotated by reasonof the action of the. holding pawl Sila and'hence the pawl 83-c1icks along the teeth of the gear Bl until the pivoted end thereof abuts the gear 853 whereupon the drum is driven clockwise by further move ment. of the handle in that direction. The succeedingmovement of the drum bythe operator should be, in the preferred operation of the machine illustrated, through a limited arc only or until a second detent 85 in the cylindrical end of the drum is engaged by the roller 51. When the drum is in the position thus described, the dupli-y cating portion 28 of the drum will be arcuately re.- moved in a clockwise direction from the bight between platen 3| and the drum a distance such that a card or envelope previously fed into the bight between the rollers i1 and 5S will be brought into proper registration upon resumption of the clockwise rotation of the drum. In other words,

the arrangement just described is preferred since it enables the address to be placed not upon the forward or advancing edge of a card or envelope, but more nearly in the middle thereof, as is conventional. Adjacent each of the recesses or def4 f tents 59 and 85, an enlargement 8S and 81, respectively, may be provided in the form of a pin head, or the like, which enables the operator better to feel the respective positions indicated by the detents and thus not to advance the drum beyond the position desired. The approved machine is particularly useful in clubs, associations or the like where messages are to be mailed to the memberships, since the address master may have provided thereon the addresses of the membership, and prior to, or, if preferred after, the messages have been duplicated upon the cards, the cards may be again run through the machine with the address side lowermostfor receiving the addresses. Envelopes, likewise, may be run through the machine for receiving the addresses in which messages imprinted on copy sheetsare to be placed. Y

If desired, the forward end of the address master that is initially attached to the spindle 16, may be blank through a sufficient distance so that a blank portion of the address master wiil overlie the drum section 23; With such arrangement, the address master may remain in the drum as' the messages are being printed after which the clip 38 and the message master iiare removed and the address master thereafter-advanced to bring the rst address upon the address master into duplicating position upon section 253 of 4the drum. The advancing of the address master, as just mentioned, Vis eected by the counterclockwise rotation of the shaft, as above described. It will be seen that as the addresses are being imprinted on cards, envelopes or'trre like, the address master in being wound up by successive increments on the spindle 25, increases the effective diameter of the wind-up spindle 1B, and that the counterclockwise movement of the shaft I1 necessary for advancing each succeeding address into printing position upon section 29 will be, less thany the full counterclockwise movement', above described. However, with the pawl roller 51 located Within the detentie, the section Z of the. drum is disposed in a position whererit is clearly visible to the operator during such reverse progressively smaller as more and more of the:

addressmaster becomes wound upon the spindle 16. When the entire list of addresses has been run, the spindles. and 16 may be removedv from the, drum by pressing the same axially against the'respective spings on the spindles 66 and'11 to enable. disengagement. of the other ends of 'the spindles from the studs 65 and 18, respectively', for rewinding the address master upon the unwind spindle 64 for preparing the master for sub-v sequent use.

The location of the drum section 29 in a posi# tion where it is clearly visible to the operator when the address master is' being advanced to bring a succeeding address into imprinting posi# tion is of distinct advantage since should one or more addresses on the master become obsolete, they maybe so indicated on the master and the master may be advanced to bring the 'next ad'- dress into position on section 29 of the drum. This result can be accomplished by merely rocking the handle 2i! arcuately for ratcheting vthe gear 8| counterclockwise by means of the pawl 83 while the drum is retained against movement by the pawl 51. Hence only selected addressesy'o'n the address master may be used if desired since those not to be used maybe caused to move over the section 29 of the stationary drum to wind# up spindle by merely rocking the handle through an arc defined by the position'of the pawl shown in Fig. 3 wherein the pivoted end therein abuts gear 8S and the position wherein the other end of the pawl abuts the collar 15. This arc oi' moveent is approximately 55 degrees in the machine.

illustrated in the drawings.

The feed table 4| preferably is provided with laterally adjustable guides between which the cards, envelopes or copy sheets that are i'edjin succession into the machine are guided fol1 the desired lateral alignment with respect to the message master or address master then in use. Suitable guides in the form of upright blades o f plates 88 are illustrated in Fig. 6. The guides are' shown each provided with a bushing 35 slidabl'y mounted on the tie rod I5 and having knurled linger operated set screws 9b by means of which the guides can be adjustably secured to the rod in positions spaced apart for guiding. successive copy sheets, cards or envelopes into the bight of the rolls 41' and 5"whence they are advanced into proper registration with the master on the drum. 'y

The. improvements provide a duplicating ma.- chine adapted for making copies from a message master but also one that is adaped to copy suc"- cessively the addresses from an elongated ad'- dress master thereby embodying in a single machine mechanism for performing functions heretofore generally requiring two separate machines. While I have shown and described the machiner that at present represents the preferred embodiment of the invention, changes in the details thereof maybe resorted to within theV scope and spirit of the invention to which the following claims are directed. f

I claim:

1. In a duplicating machine, a drum rotatable in one direction during duplicating operations, an operable shaft upon lwhich said drum is mounted for relative rotary movement with respect thereto, a wind-up spindle shaft in the drum extending through one end of the drum, a gear on the exterior portion of said spindle shaft, a gear relatively rotatably mounted on said operable shaft in constant meshing engagement with said first mentioned gear, means on said operable shaft for abutting said rst gear for limiting relative movement of the operable shaft With respect to the drum in one direction for eiecting rotation of the latter in said direction during duplicating operations, said means comprising a pawl adapted to engage said second gear when said operable shaft is rotated in the opposite direction for eiecting operation of said first and second gears and rotation of said Windup spindle, means for releasably holding said drum against rotation during said rotation of said Wind-up spindle, and means cooperating With said Wind-up spindle for supporting an elongate meshing relation with said rst pinion, and a member extending from said operable shaft adjacent said second pinion and provided with a,

pawl engaging the teeth of said second pinion means for releasably holding the drum against rotation on said operable shaft during said windup rotation of said spindle, said pawl being arranged to abut said second-mentioned pinion upon rotation of saidoperable shaft inthe other direction for entraining said drum for move-y ment with the operable shaft in said' other di-lk rection and releasing the drum from said holdingl means.

HUBERT JAGGER.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Name Date Frank May 15, 1917 Maguire Jari. 20, 1920 Johnson et al. i Mar. 5, 1935 Marchev Aug. 8, 1939 Number Avery Apr. 29, 1941 Bradt Dec. 12, 1944 Hudson Oct. 1, 1940

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