US1517275A - Stencil duplicating machine - Google Patents

Description

necgz, 1924 1,517,275 E.J.BRASSEUR STENCIL DUPLICATING MACHINE Filed Oct. 5, 1922 I5 Sheets-Sheet 1 1,517,275 E. J. BRASSEUR STENCIL DUPLICATING MACHINE Filed Oct. 5, 192 a Sheets-Sheet 2 1,517,275 5. J. BRASSEURY STENCIL DUPLIGATING MACHINE Filed Oct. 5, 1929.

V 3 Sheets-Sheet 5 Patented Dec. 2, I924.

ERNEST J. BRASSEUR, OF CHICAGO, ILLINOIS, ASSIG'NOR, BY MESNE ASSIGNMENTS, TO A. B. DICK COMPANY, OF CHICAGQ ILLINOIS, A CORPORATION OF ILLINOIS.

STENCIL DUPLICATING- MACHINE.

Application filed October 3, 1922. Serial No. 592,045.

- 1 0 all whom it may concern.

Be it known that I, Ennns'r J. BRASSEUR, a citizen of the United States, residing in the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Stencil Duplieating Machines, of which the following is a specification.

The invention relates to stencil-duplicat ing machines, and has reference more particularly to inking mechanism for use with such machines.

The aim of my invention is to provide for duplicating machines an improved inking mechanism which may be operatedreadily, easily and quickly to supply and distribute a controllable quantity of ink over any desired portion of the machines printing cylinder. Another object of my in ention is to provide an inking device having an ink reservoir which may readily and easily be associated with or be removed from a duplicating machine, and so arranged as to decrease any tendency of the ink to spill therefrom, either while mounted in the duplicating machine or when removed therefrom, and to be at all times readily accessible and conveniently positioned for filling. Another object of my invention is to provide an inking device which is light, con-- venient and fast to operate. Another object of my invention isto provide a duplicating machine with an easily removable printing cylinder and with means operable to distribute ink to said cylinder and also adapted to function as means for cleaning, the cylinder when the cylinder is removed. A further object of my invention is to provide an inking device incorporating automatically operating means for preventing discharge of ink at inopportune times. Other objects of my invention will be in part obvious and in part pointed out here-- inafter.

In inking devices now in use the ink tank, the brush and the brush rod are attached together for simultaneous rotation, and in consequence, when the brush is oscillated, the tilting of the tank, and also centrifugal force set up by the oscillation, tend to force ink out of the tank valves and the filling opening. After only short usage the tank will be quite covered with ink dripped from the accumulation on the brush. The ink tanks are usually quite heavy,; especially when filled, and their movement with the oscillating brush very often pounds the operating parts of the machine out of alignment. In these constructions the ink tank is permanently mounted on the duplicating machine, and the filling opening of the tank is usually in an inaccessible position near the center of the printing cylinder, thus making filling diflicult.

In accordance with my invention, the ink tank is not mounted for rotation or oscillation with the brush or brush rod, but is independent of their movements, being" slidably mounted and held in vertical position on a separate cradle therefor, which is designed to be removably mounted on the machine. By this means I notonly avoid the above mentioned objectionable features present in prior constructions, but also produce a device which is faster, easier, and more convenient to operate, since to distribute ink to the cylinder it is not necessary to oscillate the tank but only the brush and its operating parts, which are light. The ink tank is equipped with the usual discharge valve which is manually operative from a rotatable knob at the top of the tank; and to prevent discharge of ink from this valve at undesired times I provide means for automatically locking the valve against opening, except when the tankis in proper position with respect to the ink distributing brush and the cylinder. I pro-- vide a brush operatinghandle which is held stationary when the cylinder rotates but by means of which the brush may be moved to an desired portion of the cylinder and be oscillated to distribute thereto ink fed fro..i the ink tank. When mounted in a machine the ink tank presents a filling opening well above the printing cyl nder so as to be readily accessible for filling. The ink tank is so arranged that it may readily and easil be moved on its cradle into and out of operative position with respect to the print ing cylinder, and means are provided for automatically locking the tank in inoperative position. The cradle ends are so designed that when the cradle is out of the machine. he cradle firmly supports itsel and the ink tank in upright position. thus preventing leakage- The printing cylinder 1 hereby directed to the invention; Fig; 2

H and the top portion 15 is mounted for removal'with the brush and its operating; means from the; machme, and; when'is'o" removed; the brush may be employed to clean the cylinder.

'ln-forder that;- a; clearer understanding of my invention maybe had, attention is accompanying drawings forminga part of this application and illustrating one possible embodiment of my invention. Referringto' the drawings. Fig.

1 is a side elevation of a portion of a stencil f duplicating? mach-inc embodying my tiie'ink'tank and cradle oft-he inking mechanism; m 8 is atransverse sect onalview taken-onthe line 3e-3. of.v Fig. 1 Fig. 4

is'a plan'view of the brush operating mech anism of the inking; devicer Fi is a longitudinal sectional View of the mechanisnish'own in F ig. 4.; llig; '6 is a sectional View taken; on the line 6-6 of Fig. 3-; and .lfi 'ig. 7 is aside plan View of the printing cylinder showing the means, partlyin section, for removably holdingtlre cylinder on the inachine. Similar reference characters,

refer to similar parts;throughoutthesev V era-1f views of the drawings.

Referring to the drawings, the stencil duplicatingmachine proper "comprises the usual spaced side members 1 and 2, rotatable printing cylinder 3, impression 4.,"driving gears 5, and "crank handle 6 for rotating the printing cylinder. The inkmechanism-Iincludes a cradle 7 and an ink tankd8, whicliis slidably mounted on parallel V rods; 9 extending. v

spiders 10 and 11 of the cradle. End 1116111 between end her 10 has a vertical central offset portion 12, near the top ofwhich extend opposite lateral" arms 13, and near the bettom. of

whichextendopposite lateral legs 14. The

opposite ,end member. 11 has aT-shaped upper portion 15 and an ofifset,forkedlower portion 16. The rods 9 extend and are secured to arms 13 of member 10 of member 11. The ends oftherods 9 protrude on the outside of member 10, as at 17, and protrdue from the outside or" member '11, as at 18. Y The support 1 of the duplicatingmachine has small vertical slots or notches for the protruding ends 18 otthe rods 9, and the duplicating machine support 2 hassimilar small slots, or notches '19 for the protriulingmnds 17 of the rods 9. Support 2.ha s also a vertical radial slot 20 to permit the removal 7 of theprintingcylinder, as will he described Y may readily and "in the duplicating hereinafter;

in th;is slot 20 and-to act as a;fil -ler.the re,- for. WVith this easily bemounted in place machine by; merely placing the, cradle in endsfand the offset portion 12 in the respecisa perspective view of roller between.

Offset 1 2 of cradle member- 10,'ho;vvever, 1S arrangedto removably seat arrangement the ink tank position with .the rod.

tive slots provided therefor in the supporting members 1 and 2 of: the duplicating machine: The ink tank and its cradle may be removed from the duplicating machine by merely lifting it out. of the same and when it is so removed, the ink tank cradle 7 supports itself, and the ink tank mounted thereon, upright on spread legs 14 and 1G. The ink tank 8 has a filling opening at the top; and'a removable sealing cap 2]. is pro vided therefor. Tank 8 is high with respect to the, printing cylinder so as to be readily accessible and=ina most. convenient position for, filling the tank. At the bot:- tom-of. tank 8 is a discharge valve 22 which is manually operable by means of a rotatab'l'elmob23 mounted onthe top of the tank.

The ink distributing brush 24 suspended from one end of abrush tube by means of an arm 26, the length of which adjustable, as at 27. Cylinder 3. has a hub 28 rigidly attached thereto, whichv carries a sleeve 29, penetrating the hub 28. and securedithereto, as by set screws30, tor rotationv therewith. Sleeve 29 extends outwardly 'ofprinting cylinder 3.and seats in a bearing 31,; and also extends inwardly of hub 28 to form a bearingfor the brush tube 25 whiclris slidably enclosed by sleeve 29, but is frictionally engaged thereby. so that the brnsh an d bruslr'tube will rotate with the cylin'der. The axially perforatedcylinder 3, is rotatable about the usual stubsliatt 32 whichiscarried on support l zit-the opposite side of the machine. The rotation of. the cylinderis effected in the usual manner. means otan arm 33 which has a pin34 removably seated in a perforation on the side of the printing cylinder 3. Arm 33 isrotatable from crank handle 6.

The brush tube 25 encloses a rod 35, the outer. end of which is secured, as at 36, to the. inner end of a handle 37 which is positioned on the outsideof sidemember 2. Rod 35 is slidable relatively. to the tube 25, so that-by, grasping handle 37 and moving it outwardly rod 35n1ay he slid outwardly of tube 25. Pivoted on red 35, asat- 38, is a latch 39 which has a. head l0 arranged to. look within an annular recess ll provided in tube 25, so that thereafter inward or out ward movement ofhandle 37 causes similar movement of bi'ushtube25 and brush 24-. Spring 42 carried by the handle presses the latch toward. lockingposition, and the latch. may be unlocked from this recess by pushingnpon pin. 43, which is. slidably mounted in handle 37 and has its inner end engaging latch 39. Tube 25- contains'nearits center an .annular member 44, which is notched, as. (K45, to, receive apin 46,- provided near thcnendot' rod 3:), when..latch.;2-39 engages recess 41 lVhenthis.engagement has been made, oscillation. of. handle 37' will causesimilar oscillation of tube 25 and'of the lll') liU brush 24 carried thereby. A retainer 47 for the handle is preferably attached, as by means of screws 48, to the outside of supporting member This retainer 47 provides two resilient prongs 49 which are adapted to receive a ferrule 50 at the base of handle 37 and resiliently hold handle 37 in horizontal position.

' The valve operating knob 23 of the ink tank carries gear teeth 51 which are in permanent mesh with a gear segment 52 carried at the top of a lever. 53 which is pivoted to the side of the ink tank 8 by means of screw 54. The lower end 55 of lever 53 is arranged to engage against the side of brush tube 25 and thereby prevent the turning of the knob 23 to open the feed valve 22 of the tank. In order to permit of the operation of the knob 23 to open the feed valve 22, the ink tank 8 and looking lever must be beyond the end of the brush rod 25, and consequently also beyond the brush 24. Thus it is seen that by the above means the feeding of ink from the tank is prevented when it would fall upon the brush rod or on other parts where it is not desired, but that the ink can be easily fed to the interior of the printing cylinder. Before the printing cylinder is rotated, ink tank 8 is moved to inoperative position outside of the printing cylinder into a space provided between the side of the cylinder and side member 2, as shown by dot and dash lines in Fig". 3. W hen tank 8 has been moved into this position, a headed pin 56.

. member 2 of the machine below bearing 31.

I provide a coil spring about pivot 59, which at one end engages a pin 61 on lever 58 and at the other end engages a pin 62 on side member 2, the spring urging lever 58 upwardly. The lower surface of bearing; 31. serves as a stop for lever 58. Extending; from lever 58 is a projecting arm 63, which is positioned to be engaged and moved downwardly by ferrule 50 of handle 37 as this handle is moved from vertical position, shown in dot and dash lines in Fig. 3, to horizontal position and into engagement with its retainer 47, this movement causing downward movement of the, lever 58. The arrangement is such that when handle 37 is in horizontal position in its retainer 47, the upper end 64 of lever 58 engages behind the head of the pin 56 of the ink tank locking lever 53, and the ink tank is locked against side member 2 and in inoperative position. ll heu handle 37 is raised out of its retainer 47, spring60 moves lever 58 up wardly, causing its upper end6ei to move from behind the head of pin 56, thereby unlocking the ink tank from side member 2 and permitting it to be moved over the cylinder. Should the handle 37 be placed in horizontal position within its retainer a7 beforeink tan k 8 is moved to its inoperative position, then. when the tank is moved into this position, the head of pin 56 will strike the top 641' of lever 58 so as to cam it aside against the action of spring 60, and when the head of pin 56 has become seated in recess spring 66 will automatically move the top 6a of lever 58 behind the head of the pin, thus automatically locking the tank in inoperative position.

The bearing 28 for the cylinder-supporting sleeve 30 comprises a lower portion rigidly secured to the side member 2 and an upper half 66, which is extended inwaxlly of portion 65, as at 67 andis pivoted to the lower portion 65, as at 68. A bolt 69 pivoted to member 65, as at 70, is adapted to seat within a notch '71 provided therefor in member 66, and a wing nut 72 is provided for bolt 69 to hold the two halves 65 and 66 of the bearing together. To remove the printing cylinder, the cradle with its ink tankis lifted out of the machine, and then wing nut 72 is loosened and disengaged from bearii'ig member 66, and this member swung upwardly. The cylinder may then be moved laterally toward bearing portion 65 to bring it out of engagement with stub shaft 32 and pin 34: and then the cylinder may be lifted upwardly out of the machine. The slot 20 provides a clear upward passage for the sleeve 29. The. cylinder may as easily be remountcd in the machine.

Then the cylinder has been so removed, the brush and handle remain intact in the cylinder and may be used to clean the diaphragm of the cylinder by oscillating the brush while submerged or held under running water. 7

From the above, the operation of the machine will be readily apparent. When it is desired tofeed and to distribute ink to a portion of the cylinder, the handle 37 is raised out of'its retainer 4-7. This operationv unlocks the ink tank 8 from side member 2 for movement along its cradle. Ink tank 8 is then moved to the proper place over the cylinder beyond brush rod 25, and by manipulating knob 23 the desired quantity of ink is fed to the interior surface of. the printing cylinder. Handle 37 is then pulled outwardly until the engagements are effected between latch 39 and recess 41, and also between pin 46 and notch 45, whereby brush 24:

is connected with handle 37 for operation thereby. Then the handle 3? 'is movedin-t over the desired portions of the cylinder.

/Vhen the distribution of ink'has'b'een eta fected; pm. 43 o? handle 37 is pushed mjwardly and handle 3'?" moved toward side support 2 and locked in its retainer 47. Ink

tank 8 may have been previously moved into inoperative position against side member Zand outside of the cylinder, or it may I 15" now he moved into such posit-ion, and in either case will be automatically locked in suchposition by means of the coaction be tween pin 56 and'lever 58 Upon'subse quent rotation of the'printingcylinder, the brush tube 25 and brush 24; will rotate therewith while handle 37 remains stationary.

As many changes couldbe made in the above construction and many apparently widely different embodiments of this inallmatter contained in the above-description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

What Iclaim is p 1. A stencil duplicating machine having a cradleremovably mounted thereinand an ink tank slidably mounted on said, cradle, said ink tankadapted to be moved out of the line of the printing action.

'2. A stencil duplicating machine having a cradle removably 'mounted therein and an ink tank slidably mounted on said' cradle, said "cradle being arranged tomaintain it-' self and said ink tank in upright position when removed from said machine. a

3. In a stencil duplicating machine, in combination, side members,a cradle remov ably mounted between saidside members and supported thereby, said cradle having projections'removably seated in notches'provided by said side members, and an ink tank slidably mounted on said cradle.

4c. In stencil duplicating machines, the combination with side supports and aprinting cylinder between said supports, of a cradle removably' supported between said side supports and having projections eX- tendmg from both sides-and an offset portion on one side, notches on said s1de supports for removably receiving said projections and a slot on one side support for removably receiving said ofis'et portion, and an ink tank supported in vertical position bysaid cradle itorslidable movement across said cylinder. p o' 5. A stencil duplicating machine having a cradle removably mounted therein and an ink tank slidably mounted on said cradle,

vention could-"bemade without departing from th'esco' e-thjereof it isintende'd that" determined position on said cradle, said ink tank adapted to be moved in' said cradleoutside of the line of the printing action.

In a stencil duplicating machine, in combination, side members, an ink tank, means supporting saidink tank for movement between said side members, a rotatable printing cylinder between said side members positioned to provide space for said ink tank between one of said side'membcrs anda side of said'cylinder, and means'for locking said ink tank 'in said space.

'4'. In a stencil duplicating machine, in combination, side members, an inktank,

means supporting-saidink tank for sliding movement between said side members, a-rotatable printing cylinder between said side members positioned to ink tank between one and a side of "said cylinder, and means for provide space for said locking said'ink tank in said space, saidmeans comprising aheaded pin movable with said tank and a lever mounted onthe' a'd acent side member adapted to lock behind the head of said pin.

' 8. In a stencil duplicating machine, in combination, side members, an ink tank, means supporting said ink tank for sliding movement between said side members, a 1'0- tatable printing cylinder between said side members positioned to provide space for said ink tank between one of said side members and a side of said cylinder, and means for locking said ink tank in said space, said means comprising a headed pin movable with said tank and a lever mounted on the adjacent side member adapted to look behind the head of said pin, yielding means for maintaining said lever in looking position,

said lever out of locking position to free said pin and to permit said ink tank to be slid across said cylinder.

9. In a stencil duplicating machine, the combination with a rotatable printing cylinder, of an ink distributing brush mounted within said cylinder and connected thereto for rotation therewith, and manually operative means for moving said brush axially and rotatively with respect to said cylinder.

10 In a stencil duplicating machine, the combination with a side support and a printin cylinder rotatably mounted thereon, of a brush tube slidably extending axially into said cylinder, an ink distributing brush supported from the end of said brush tube within said cylinder, a rod slidably positioned within said tube, a'handle engaging one end of said rod outside of said side member, and means comprising a latch on said rod adapted to look within a recess in said tube to lock said rod and tube together for simultaneous movement across said cylinder.

11. In a stencil duplicating machine, the

sliding of said "side members IOU said cylinder, an ink distributing brush supported from the end of said brush tube within said cylinder, a rod slidably positioned within said tube, a handle engaging one end of said rod outside of said side member, and means, comprising a pin on said rod adapted to engage within a notch in said tube, whereby oscillation of said handlecauses oscillation of said brush within said cylinder. 7

12. In a stencil duplicating machine, the combination with aside support and a printing cylinder rotatably mounted thereon, ot a brush tube slidably extending axially into said cylinder, an ink distributing brush supported fromthe end of said brush tube within said cylinder, a rod slidably positioned within said tube, a handle engaging one end of said rod outside of said side member, means comprising a latch on said rod adapted to lock within a recess in said tube to lock said rod and tube together for simultaneous movement across said cylinder, and means, comprising a manually movable pin carried by said handle and engaging said latch for unlocking said latch from said recess, to permit movement of said rod inwardly of said tube.

13. In a stencil duplicating machine, in combination, a side member, a rotable printing cylinder, means for rotating said cylinder, an ink distributing brush within said cylinder, a handle, and means adjustable to connect said brush to said handle for operation thereby and adjustable to disconnect said brush from said handle to permit rotation of said brush with. said cylinder in dependently of said handle.

14. in a stencil duplicating machine, in combination, a side member. a rotatable printing cylinder, means for rotating said cylinder, an ink distributing brush within said cylinder, a handle, and means adjust able to connect said brush to said handle for operation thereby and adjustable to disconnect said brush from said handle to permit rotation of said brush with said cylinder independently of said handle, said means comprising a brush tube connected with said brush and a rod slidable within said. tube and connected with said handle and a severable connection between said tube and rod effective when said rod and tube are in one relative position and ineffective when said rod and tube are in an other relative position.

15. In a stencil duplicating machine, in combination, a side member, a rotatable printing cylinder, means for rotating said cylinder, an ink distributing brush within said cylinder, a handle, and means adjustable t c nnect said bru h to s d handle for operation thereby and adjustable to disconnect said brush i romsaid handle to permit rotation oi? said brush with said cylinder independently of said handle, and means, comprising a retainer on said side member, for holding said handle stationary while said cylinder and brush rotate.

16. In a stencil duplicating machine, in combination, a printing cylinder, ink distributing means, including a brush movable. over and in contact with the interior suriact of said cylinder, and ink feeding means, including an ink tank movable independently of said brush across said cylinder, and means coacting with both of said means when said brush. and tank are inv predetermined relative positions for preventing feeding of ink by said feeding means while said brush and tank are in such relative positions.

17. In a stencil duplicating machine, in

combination, a printing cylinder, ink distributing means, including a brush tube mounted for sliding movement inwardly and outwardly of said cylinder and a brush supported on said tube, ink feeding means, including an ink tank movable independently of said brush and tube across said cylinder and provided with operable feed valve mechanism, and means engaging said iced valve mechanism and adapted to coact with said brush tube when said brush and tank are in predetermined relative positions forpreventing valve opening operation of said feed valve mechanism while said brush and tank are in such relative positions.

18. In a stencil duplicating machine, in combination, a printing cylinder, ink distributing means, including a brush tube mounted for sliding movement inwardly and outwardly of said cylinder and a brush. supported on said tube, ink feeding means, including an ink tank movable independently of said brush and tube across said cylinder and provided with operable teed valve mechanism, including a rotatable knob provided with gee r teeth, a lever pivoted on said ink tank and having teeth engaging with the teeth of said knob. the opposite end. of said lever being arranged to engage against the side oi said brush tube when said brush and tank are in predetermined relative positions to prevent the operation of said feed valve mechanism to feed ink while said brush and tank are in such relative positions.

19. In a stencil duplicating machine, in combination, side members, a removable cradle mounted in said side members, ink feeding means arranged on said cradle, a printing cylinder between said side meme hers and bearings for said printing cylinder mounted on said side members, one of sai side members having a slot extending to the said bearing thereon, and bearing havvone side an axial seated Within fsaid upper portioil jie in V in'g :a pivoted 'npper p'or tion rnovable to permit said cylinder-to be removed from "said i i side member's.

'20. In a stencil duplicatingfmachine, in coinbinati'on, :a' printing cylinder having on it perforation and having on the other side "an outwardly extending axial sleeve,a sideinembenhaving a stnb shaft perforation, and another having a bearing for aid bearing comprising a fixed Side meinber sleeve, said lower portion and-1amovable ufiper ".portion extending inwardly .of said lower portion,

wherebyfwhen said upper portion 15 in one position said cylinder i's maintained inen- :ga'gement with :said' stub shaft and when another position said cylinder may be moved sidewigse to disengage iirom Said stub shaft.

21. :In a stencil duplieating machine in combination, a printing cylinder, an ink distributing brush and brush operating mechanisin mounted on said eylindeigflsaid brush operating mechanism permitting said v-distributi ng brush to be rotated inde pendently thereof, and means adjustable to malntanrsa'id cylinder on the machine, and

adjustablelto .permit removal of said cylinder with said brush and operating mechanism int-act therewith from the machine. This Specification signed vthis 25th day of September, 1922.

ERNEST J. BRASSEUR.

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