US1050638A - Duplicating-machine. - Google Patents

Description

H. G. GAMMETER.

DUPLGATING MACHINE.

uPLIoAToN FILED PEB. s, 1911.

7L VUM Zin/5222271 H. o. GAMMBTER.

DUPLIGATING MACHINE.

APPLICATION FILED PEB. 8,- 1911.

Patented Jan.14,113.

2 SHEETS-SHEET 2.

Ei ms@ UNiTED: sTATRs iDA'riiNr onirica.

HARRY c. GAMMETER, or BRATENAHL, oriro, AssiGNoR To THE AMERICAN MULTI- GRA-PH COM PANY, OF CLEVELAND, OHIO, A CORPORATION.

DUPLIC'ATINGTMACHIE.

Specification of Letters Patent.

Patented Jan. 14, 19413.

I, Original application led March'28, 1906, lSerial No. 308,379. Divided and this application filed'll'ebruary 8, 1911'. Serial `No. 607,346. y

To-aZZ whom t may concerni Be it known that l, lHARRY C. GAMMETFR, acit1z'en of the UnitedStates, residing at f Bratenahll, in the county of Cuyahoga and 'State of Chio, have invented a certain -new and useful Improvement. in vDuplicating- Machines, of which the following i's a full,

clear, and exact description, reference being f .had to thev accompanying drawings.

' file -My 'prior application Number v308,37 9,

March 28, 1906, shows a rotary print'- ing machine having a removable ydrum formed with ralls vfor Vcarrying individual ,type; anothery drum, 'co-acting therewith, as a platen; an ink supplying fabric passing between the two drums and mounted on a pair of rollers independent of either drum, the fabric moving* forward during, the irnpression and Vbeing retracted between impressions; and a 'hollow 'absorbent roller lcontactiiig with the printing drinn, whereby the i fabric i s replenished for each'rotation, l

' The present application relates to the replenishing feature-that is, the successive application of ink to the fabric. Thefeature of the removable-typeholding member is4 covered in application Number-574,660,

filed July 30, 1910, as a division of said apf plicationNumber 308,379. Thefother features are covered in 'th'e parent application.` The'y drawings clearly illustrate the present' invention. f f

F igure l is an end view, partly sectional,

of a printing machine embodying the invention; Fig. 2 is a cross section thereof in a .plane vparallel with Fig. l; Fig. 3 is a fro'nt eleyation, partly sectioned t rough the ink I. supply roller and the ribbonv spool beneath it; Fig.4 is a perspective view of the clutch mechanismifo-r controlling the ribbon feed l;

' Fig. 5' is va sectional side elevation of the ribbon 'receiving roller and its clutch; Fig. j 6 isa perspective View lof the support and clasp upoii which the ribbon is wound.

Referring to the parts shown by numerals,

- I0 and 11 are a pair of end plates mounted v.on a suitable base 12.

13 designates a shaft mounted in bearings `inthe end plates and having on itslenda crank 14, by which it may be rotated.v Mounted on this shaftbetween the end plates is 'a drum, designated 15, which is shown as clampedfto the shaft .by a centrally.

'placed radial set'screiv 1'6. yCarried lby the periphery vof this drum,V are a series of parallel rails 17 which have over-hangingedges,r

wlierebythese rails may loosely conine between 1them'y parallel rows of grooved' indi-A vidiial types, designated '18, assembled into page form. .The loosenin of the set screw "16 enables a simple pull on the crank, lengthwise of the shaft, to draw the crank out and free the drum. Accordingly, the page form may be removed-intact and preserved fory future use, or type may he assembled into,

or distributed from, one drum while another have, a soft exterior covering 2l, removablyV held by a bail 22, clamping the end of. the

covering into a recess 23 in ,the' drum. IThe ext-remo diameter the drum with iits'cove ering may 'be `the same as the diameter of,

the printingdrurn and its type, causing -the type to successively impress the same prtion ofthe'platen, allowing convenient overi y laying and under-laying. The platen may i be mounted on a shaft 25 which has eccentric,

bearings in the end plates, and is shown as having 'on its'end a lever 26 by which it may be adjusted `On the platen is a gear 28 which meshes with a vgear 29 on thedrum l 15, whereby the two rotate' unison when driven by the crank 14:. L

. 'In printing-in imitation'of type-writtenv work, itis desirable vto'niake the impression through an inkedr fabric. `Such fabric is shownin the present Inachine'as 'extending between the twodrums and mounted. on rollersl 3l and 42m front ofand behind-the line of contact and parallel therewith., The fabric itself is designated 30.*' As hereinafter explained this fabric is fed forwardl (that'is .toward the right in'Figs.l 1 and -2 with the paper during the printing portion- 'ofl the1v rotation, and after' such portion is retractedtofits original position byl a spring within the roller. 31. It is to be understood.`

that the paper to be printed'is passed into the machine by,hand, or otherwise, beneath the guard 62 which extends below the roller 31. and above the table 63 and the guard 64 behind it. Now, with the coperatingparts described, the same short section 'of theribbon may be .used over and over again until exhausted. When it is exhausted, the clip 43, or other means, which holds the end to t-he receiving roller is loosened, and the exn hausted portion of the ribbon is cut off, the ribbon being again connectedto the receiving roller. This method of operation has the advantage over using asuccessively fed ribbon for its full length continuously in that the impressions made bythe successive impressions are more uniform. Moreover, there is eliminated that `wear on the ribbon which is caused by dragging it across the t-ype. To` replenish the ribbon as it is used, I provide an' inking roller 65 which is adapted to bear directly on the type and ink them, so that the type furnish to the -ribbon an amount of ink.. which corresponds to that which is taken oif the ribbon-by the iinpression. This inlring rolleixmay also allow direct printing, the ribbon being removed. The inkiiig roller may itselfaconstitute an ink i'eservoir.- As shown in Fig. 3, the inkin'g roller consists of a felt exterior G6 mounted on the perforated tube 67 which is held by heads (3S and 09. The head 69 is adapted to receive the spring pressed bear-- ing pin 70, while the head G8 carries a gear 71, which, meshing with the main gear 29,- furnishes means of rotation. The head 68 is hollow to communicate with the. interior of the roll, and a filling opening is provided in the head, which, when the roller is in use, is plugged by thescrew 7 2. The support 'for the roller allows its easy removal and for filling with ink, either for direct printing or of the proper composition and color to replenish the ribbon.

In printingmatter with lines of typeactf 40 ing through a ribbon, it results that Where the lines are short, as at the end of para-v graphs and elsewhere, a portion of the ribbon is unacted upon, thus, ordinarily, leaving the ribbon comparatively fuller of ink at such points; and this inequality of inking in the ribbon increases with successive impressions of the same matter on the same portion of the ribbon, resulting in giving a comparatively bad impression, lIvvhenwith 5'@ change of matter, a full line comes on such portion. For many classes of work this inequality of impression is immaterial and may be disregarded. However, to enable the very best result to be produced, I have 5aincorporatedwith the rotary ribbon print-- `ing machine my system of inking the type and letting it ink the ribbon. This obviates the difficulty by supplying to the ribben ink at'the e'i'ract place where .it is removed, and

this allows the same short portion of fabric to be used over andover again, producing the same impression however the lines of type run. The ribbonA is always in -good condition until the fabric itself1 is worn out.

55 The ribbon may originally be inked inde.

even `thromghout the page, and thus a close imitation of type-written matter may be made, this imitation effect being augmented vby the loose manner in which the rails hold the type.

It will be' proper now,to describe the Vmeans shown for holding and reciprocating t-he ribbon. In the form shown,- the s priiig barrel 31 consists of a central shaft heads 38 thereon; a tube 34 connecting these heads; and a spring wvithin the barrel, secured at one end .to the shaft and at the other.' end to one of the heads The shaft is freely journaled in the frame at one end and at the other end extends into a socket carried-'by a short shaft 3G.' This shaft is pressedytoward the drum by a spring 37, and its socket is so formed that it prevents the shaft having independent. rotation. On the shaft 36 is a head 38 and on the frame and the face of the head which bears against it are formed cooperating projections and recesses, holding the shaft 3i;

against accidental displacement, allowing adjustment of the spring by the turning of the head 38. To'allow the coil of ribbon to be applied to the spring barrel without unwindingthe coil, I mountit on a splitsleeve 39 (Figs. 1, 3 and` 6), this sleeve having one edge 40 doubled on itself to clamp the` ribbon and having the lother edge 41 turned inwardly to occupy a slot in the tube 34, preventing slipping.- When the head 3S is pulled endwise against the spring 3T, the spring barrel may be removed and the spool slipped into place over. it.

.In the embodiments shown, the receiving roll 42, which carries the forward end of the ribbon, is automatically rotated as the drums are revolved, and thus takes up the ribbon gripped and fed forward with the paper by the two drums, suoli operation winding the ribbon oi of the ribbon roll and 'winding up the spring 35.- When the sheet has-'been printed, the receiving roll is` released and the ribbon iies back to original position on the roll 31, thespring ,un- Winding. The mechanism causing this opl eration will now be described. t

I The ro1l42 (Fig. 5) is mounted at its ends in studs 44 and 45, carried by the end frame members 10 and 11. The stud 44 may be screw threaded in the frame, to allow the removal of the roller. 'llie stud 45 is rigid with the frame and has loosely j'ouinaled on it a clutch 47 which may engage with the counter-bored end of the roller. A spring 48 tends to prevent such engagement. `On the clutch 47 are formed teeth 49 which mesh with an idler 50 (Fig. l) which in turn meshes with the teeth of the main gear 29.

On'the stud 45 is a rigid flange 52 and a loose washer which are secured 'by apinfl against rotation. Between these washers is a plate 54 journaled on the 'stud and having recesses containingballs 55.

.32 and It4 the plate 54Mbit: rocked Qn'the 'shaft however, the balls are-moved out of their recesses, forcing apart the washers 52 and 53, and this forces the clutch into en? gagement with the endof the roller .42 to' cause the 'same torotate with the clutch. The plate may be shifted at the proper `time to set the'clutch by a rod 5GB-connected with the plate t'at one end and at the other' end with a bell crank 57 which carries' a roller 58 adapted to bear on a segmental cam- 59 niounted on the impression platen. W'hen this roller 58 is 1n engagement with the cam, the rod y.5G-holds the `clutchl? in .disengaged position. flYhen, however, the

cam releases .the roller 58,'-tliesp1'ing '60 draws the rod 56 in the direction to apply .the clutch and the1 ribbon is accordingly pulled along concurrently both by they grip o f the drums and the rotating roller 42. The size of thel gear 49 alnd the', roller 4:2

are s o selected that the peripheral speedV of thev roller'is substantially" the 'same as At the Sametime the positive pull of the roller A42`overcomes any tendency of the spring barrel 31 to cause backward slippage of the ribbon when gripped between the drums. A weak spring 61 surrounding the vrod 56 allows movement'of the rod without jamming the clutch after the clutch is suiciently tight. f

From the construction described, it will be seen that my print-ing mechanism, while I'being very simple in construction, can be made` to effect excellent imitations of typewritten work, by 4reason of the conjoint actionof its several features, namely :-((L) impression through'the same portion ofan inked ribbon; (b) constant replenishment of "the ribbon at points where. its ink is removed; (c) the employmentwith such replenished ribbon of t-ype loosely held about the periphery of a rotary drum cooperating with a rollerplaten, whereby a digging `1mpression is` given corresponding to the blow of typewriter key-bars. It will also'be seen that thetype on the drum has a corresponding digging effect on the inlring roller, thereby inking-more heavily the advance edge of,

the type and lieightening the imitative effect,

produced.

l claim:4 l.. The combination-'of a rotary member provided with means for carrying rows of individual type, a rotary coperating platen,

a fabric through which the impression is 65 made, and a roller cov-acting with this'rotary These balls normally occupy also recesses 1n the washers means, one ,being an inkribbon and the other 'aninlring' roller, and the two coperating type carrying drum, a fabric through which.

' points where the ink was used on the jmernber for Isupplying ink to thegfabric on "each rotation.

y 2. The combination of a rotary printing, drum, a rotary impression platen, .a fabric, means for holding the Asame so that succes- 4sive impressions are made through'the fab'-4 ric at the same points, andl means for inlring the fabric at suchpoints.

3. 'The combination of a rotary typecalrying member provided withmeans-forcarrying a plurality ofparallel lines of type, a roller impression platen coperating therewith, and an inkin'g ribbon andan inking4 roller simultaneously'cooperating with the form on the saine side of\ the paper to be printed.

.4. The combination of a vprintingmember formed, to carry 'a page formof parallel lines of `tfype a' rot-aryv platen, and two inking simultaneously with the printing member on thesame side of the paperto be printed.,

`5. The combination of a rotary printing couple,. and two inking means therefor, one

9o, being a fabric, 'and the other an'absorbent .rollerv and bot-h 'bearing' againstA theA form member of `the couple. v

. `6. The combination of a roller platen, a

the printing is effected, the sameportion of the fabric covering the same characters-'on successive impressions, and "means for reinking the 'fabric ,for each impression at! the I precede .1'00

ingimpression. A 7. The combination of a rotary form -member, a coperating platen, a fabricthrough vwhich the printingis effected by the rolling movement of said member 'and 105 platen, and a roller4 coperatinfr with the', member "f or; supplying ink to said fabric, said roller being mounted parallel with the form member and driven concurrently with the rotation of the latter and supplying ink duringA such rotation. A 8. A printing couple, one member, of

which isV rotary 'and carries-a form, combined with an inking ribbon and an i'iiking roller simultaneously coperating with said member of the couple onthe same side of the. paper to be imprinted.

9. In a duplicati-ng machine, the combination, of a'rotary printing member, an -impression platen, an inking roller bear-ing on the surface of the printing member and adapted to ink'the type thereon, and an inking ribbon .passing between the printing' member and the paper to' be printed, where'- by the ink on the ribbon is replenished. 125

10. The combination, with two' members of a rotary.printing'couple, of anfinking roller vadapted to act" on the printing surface ,carried by one of said members, and means' for feeding a ribbon, said ribbon be- '130 ing removable whereby the couple may print directly or through thev ribbon on the same side of the paper, the ribbon being inked,4

by the printing surface;

11. The combination, withtwo members of a rotary prii'itiiig couple, of an inking roller adapted to act on type carried by one of said members, and means for feeding an inking ribbon between the members of the couple and on the side of the paper to be printedadjacent to the printing member, Said ribbon being removable whereby the couple may print directly or through the ribbon, the ribbon having its ink thus replenished.

1Q. The combination, with the two members of a rotary printing couple, of a printing ribbon, mechanism for causing itto reciprocate between said members, and means for reiiiking such ribbon for each rotation.

13. The combination of a rotary printing couple comprising an impression platen and means for carrying a page forni of individual't-ype, means whereby the form may be removed as a whole witlio-ut being disassembled, a fabric through which the form prints, and means for inking the fabric on each rotation of thefmachine.

141-. ln a duplicating machine, the combination, with a printing member and an impression platen, one of which is rotary and the other of which has coperative'concur- ,rent movement, whereby the printing is ef fected by rolling impression, of an iiiking roller bearing against t-heprinting surface on the printing member, and an inkiiig ribbon passing between the two members of the printing couple and inked on its back side bythe ink from tho type.

15. The combination, with the frame of the machine, of a roller platen, a page form of individual -type`arranged to travel in a circle and periodically cooperate with the platen, means for carrying vthe form, means .for removingthe form from the machine Without disasseinbling it, aj fabric through Which the impression is made, means for carryingthe fabric, and means for ink'ing the fabric during the-operationofthe machine.

16.' The combination, with a roller platen, of a printing form mountedto move in c'ooperation with the platen, means for-carrying the form, means for supplying ink directly to the form at one pointfa'nd an inked ribbon through which the form prints at another point.

17. vThe combination of a rotaryimpression platen,` a rotary member above the platen, a device removably mounted on said vmember and having parallel rails for holding individual type whereby a page form may be removed asa whole, a fabric, means for holding the same so that successive impressions are made through the same points thereof, and means for inking thefabric for veach impression.

ing ribbon adapted to engage the form face of the type on the front side of the paper to be printed, and an iiikiiig roller acting directly on a portion of the form while another portion of the forni is eifecting the impression through said ribbon.

19. The combination, with a rotary platen,- of a rotary member mounted parallel therewith,I a device removably mounted on the rotary member and adapted to carry a page form of individual type land allow its removal wit-hout disassemblage, a fabric through which the impression is made, an'd means for inking said fabric for each impression.

Q0. The combination of a page form and a roller platen having rolling co-action with `the whole form, an inking ribbon extending between the two in position to engage the face of the form, spools for holding the ends of the ribbon, means for feeding paper between the ribbon and platen, and an inking ro-ller adapted to contact with the forni at a point not covered by the ribbon.

21. ,The combination, with a roller platen, of a printing form having rolling coaction therewith and consisting of parallel lines of individual type, all of which are adapted to coact with the platen, an inking ribbon extending between the platen and form on the front sidel of the paper to be printed, but leaving a portion of the form uiicovered, and means for inking the forni directly at an uncovered portion.

22. The combinationof a rollei platen, a cooperating type-carrying member, a page forni of individual type projecting a substantially equal extent throughout, whereby the whole page coacts with the platen, an inked fabric adapted to extend between the member and platen and to points on cach side -of the line of contact, spools for carr ving the ends'of such fabric with the fabric engagingthe forni when paper is between the form and platen, and an inking device, a port-ion of the form .being exposed to the action of such device while the ribbon is covering another portion.

23. The combination of a roller piaten, a coperating t-ype.cari. viiig member provided with means for carrying a page forni of individual type held. in a pluralitv of parallel lines, an inked fabric adapted to cxteud between the two and to points oncach side of the line of contact,- spools for carrving the ends of such fabric with the fabric engaging the fornrwhcn paper is between the forni and platen, the axes of said spools not moving out of constant horizontal planes, the fabric receding fiom the form and an inking roller adapted to contact a port-ion of the form where the fabric 1s out of Contact'.

24. The combinationof a roller platen, a co-perating type carrying member having means for holding a vpage form consisting of a plurality of parallel lines of individual type, an inked fabric adapted to extend between the two and to points on each side of the linen of contact, spools for carrying the ends of such fabric, the axes of said spools not moving out of constant horizontal planes during printing, there'being a portion of the form not covered by the fabric, means for feeding paper between the fabric and platen, andan inking roller adapted to contact with the form at points where the fabric is out of contact with it.

25. The combination of a form consisting of a plurality of parallel lines of loosely held individual type, a roller platen having rolling coaction therewith, an inking ribbon extending between the two on the front side of the paper to be printed7 means for holding the ends of the ribbon, and anlinking roller adapted to cont-act with the form at a point not covered by the ribbon.

26. The combination, with a roller platen of a printing form having a'plurality of parallel lines of individual type mounted to p move in coperation with the platen, means for carrying the form, means for supplying ink directly to the form at one point, an inked ribbon, and means for holding the ribbon between the platen and the face of the line of type which is printing on the front side of the paper being printed.

27. The combination of a printing member formed to carry parallel lines of indi-.

vidual type, a rotary platen, and two inkin'g means, one' being an inking ribbon adapted to lie between the type and platen andthe other an inking roller and the two cooperating simultaneously with the printing member, and means for feeding sheets of paper between the ribbon and platen.

Copies of this patent may be obtained for five cents each, by addressing the Washington, In.' C.

28:""The combination of a rotary printing drum formed to carry individual type projecting a substantially uniform distance from the axis of rotation, a rotary platen parallel'with the drum and adapted to coact with the page form carried by the drum, and two inking means, one being an inking ribbon adapted to lie between the type and platen and the other -an inking roller, the two coacting simultaneously with the printing member whereby the inkv of the ribbon is periodically and automatically replenished by the rotation of the drum.

2S). The combination of a rotatable drum, means for holding thereon lines of removable individual type parallel with the axis of thedrum, whereby a page form of type adapted to print at one'rotation may be mounted on the drum, a platen adapted to have rolling contact with the type on the drum a line at a time, and two inking means, one being an inking fabric adapted to extend between the type and platen` on the front side of the paper to be printed and the other an inking roller, and the two cooperating simultaneously with the printing member.

30. The combination of a rotatable drum, means for holding thereon parallel lines of loose individual type, said lines extending parallel with the axis of the drum, a roller platen adapted .to coact with the type on the drum a line at a time, an inking fabric adapted to extend between the type and platen-and beingpressed simultaneously by a line of type, andan inking roller bearing against the type whereby the same are automatically inked as the drum rotates and thereby replenish the fabric at the same time that they print through it.

In testimony whereof, I hereunto aflix my signature in the presence of two witnesses.

. HARRY C. GAMMETER, Titnesses H. L. PHILLIPS, l). E. AUSTIN.

Commissioner of Patents,

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