US1022406A

US1022406A - Printing-press.

Info

Publication number: US1022406A
Application number: US56747310A
Authority: US
Inventors: Reuben D Coy
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-06-17
Filing date: 1910-06-17
Publication date: 1912-04-09
Anticipated expiration: 1929-04-09

Description

Patented Apr. 9. 1912.

3 SHEETS llbl I Wilde/2257":

R. D. COY.

PRINTING PRESS.

APPLIUATION FILED mmv/,1910.

Patented Apr. 9, 1912.

3 SHEETS-SHEET 2.

R. D. GOY.

PRINTING PRESS.

APPLICATION FILED JUNE I7. 19ML Patuted Apr. 9. 1912.

i SHEETS-SHEET 3,

REUBEN D. COY, OF GLENCOE, ILLINOIS.

PRINTING-PRESS.

Specification of Letters Patent.

Patented Apr. 9, 1912.

Application filed .Tune 17, 1910. Serial No. 567,473.v

To all whom t may concern:

Be it known that I, REUnEN D. Coi', a citizen of the United States, residing at Glencoe, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Printing-Presses, of which the following is a specification.

My invention relates to a printing press of the type which prints upon a continuous web, and the invention has for its object to provide certain new and improved devices, constructions and arrangements, to be hereinafter described, which are by preference employed conjointly in the manner shown, and when so employed have a particular cooperative relationship and a particular utility, as will be apparent, and constitute a web press having certain novel fealures and capacities; but which devices, con.

structions and arrangements may nevertheless be employed separately, in presses constructed differently from that here shown, or as improvements upon other forms of presses nonT in use.

The press of the present invention in its general characteristics follows the arrange- I ments shown in my Patent No. 863,591,

granted August 20, 1907, in which the printmg surfaces, o-r coperat'ing printing and impression surfaces extend only part way around thecircumference of the c vlinder in each case, therest of the cylinder being cut away, the web being carried on a reciprocating frame or gate which moves'forward at a speed that will carry the paper through the printing point at the surface speed of the cylinders and which moves back at. a quickened speed, the cylinders constantly revolving in the same direction at a uniform speed; the web, furthermore, being fed from the gate during the interval between printing operations. Wit-h respect to a press of this general character, Whethergthe same be used for offset printing or not, lthe present invention has for objects to provide a novel mechanical movement for imparting motion to the gate in 0 posite directions at different speeds by which perfect accuracy is insured, and new and improved arrangements for feeding the lweb over the gate, which permits the web to be severed in sheets of any size, regardless of the size of the printed impressions, thereby making the "press an all-size press, and which prevents any undue tautness or looseness ofthe web in the press.

.The invention has for further objects such other new and improved constructions, ar rangements and devices relating to printinn' presses, ,and particularly to rotary we presses, as will be hereinafter described and claimed.

The invention is illustrated in a preferred embodiment in the accompanying drawings, wherein* I Figure 1 is a longitudinal section taken through a press constructed in accordance with my invention, certain familiar parts being omitted for the purpose of clearness of illustration. Fig. 2 is a fragmentary sectional view illustrating the construction of the cylinders. Figs. 3, 4 and 5 are detail views, showing the parts in different positions, illustrating a mechanical movement for imparting motion to the gate in opposite directions at different speeds.. Fig. 6 is a fragmentary view illustrating a portion of the mechanism for giving intermittent movement to the feed cylinders. Fig. 7 is a cross sectional view s owing partlcularly the devices constituting the mechanical movement illustrated in Fig. 1 and Figs. 3

to 5 inclusive, and Fig. 8 is a detail end elevation of the forward feed cylinders and associated parts.

Like characters of reference indicate like parts in the several figures of the drawin s.

Referring to the drawings,A, A designate the cylinders of the printing couple, B the paper roll, C the web, which, of course, is taken continuously from the roll, and D the reciprocatiner gate provided at oppo` site ends with ro 1ers E, E', over which the paper runs.

F is a feed cylinder around which the paper passes be ore it goes over the gate, and F is av feed cylinder around which the paper passes after leaving the gate.

G represents a shearing device, which may be of any desired sort, the same forming Ain itself no part of my invention, and H av receptacle for the sheets as they are cut from the web.

The cylinders A, A are formed with the' tion of eachv of the cylinders is covered with a rubber blanket 12 (Fig. 2) of the sort orl 1 dinarily used on the printing cylinders of adapted to be dampened by the dampening offset presses; and in such case each of the cylinders A, A is providedwith its sepav rate form cylinder, the form cylinders being designated J and beingconstructed in the vfamiliar manner with portions of theirsurfaces adapted to receive ink fromv the inking mechanismsl K, K' and ,other portions mechanisms vL, 'L. By this arrangement each printing surface constitutes an impres-l 5. sion-surface for the otherl printing surface.

So -far as'I am aware,`this arrangement'is the .first arrangement which has been de- `vised for printing 'simultaneously at'correspending points on opposite sides of alweb by the offset method.

. The mechanlsm for impartingv movementvv 'to the gate in opposite directions and at different speeds -consists preferably of the following parts, it.v being .understood that this mechanism might be employedfor -a 25 press of this general character, whether or not it be so constructed as to .print by the oiset or surface method. yThe gate moves 1n guides 13, 13 andis provided with the racks .A 14, 14 Fig.' 7) which are

meshedby pinions

15, 15, eyed't'o a shaft16 which is mounted inthe side `

frames

17, 17, the shaft 16 havi 'ing keyed thereto athird pinion 18. One

ofthe pinions 15 is meshed by a sector gear 19 which is ivoted at 20 to one of the frames 17. inion; 18v is intermittently meshed by a sector gear 21,' keyed to'a shaft 22, which revolves in one'of the frames 17, this shaft having-keyed to it the driving l gear 23, which receives movement from a -pinion 24 on the first motion shaft '25, and

eing also provided with a crank 26 carrying a roller 27; the crank being so arranged .on shaft 22`that the roller 27 Whichit car i ries enters a slide-way 128 formed radially on the oscillating sector 19 by means of the shoes 29, the upper ends of which are cut off obliquely, as indicated at 30, so as to guide V15'. A further rotation of gear 23, and sector gear y21 disengages the latter from pinion ree different positions. In'

tion being imparted tothe gate, moving the latter'in the same direction, that is tothe right, as shown in Figs. 3, 4 and 5, and -to the left, as shownin Fig. 1. .Th-e rotating sector gear. 21" comes into mesh with the ...70' .pinion 1 8 ('Flgs. 5 and|7.').`at the same time movement imparted it 'fthe gate by the ro. .i

tating sector gezirlht'efforward movement-- through the printingpoint, is. slower than the reverse movement just described, because".

'of the difference.. in radius of the sector gear and crank 26. It'will be seen that in'its es-,

sential elements, this movement consists of a'constantly rotating device which has inf termittent engagement with the lreci roeating device to move it in one direc-tion at a relatively low and' uniform speed, `an

oscillating member which engages the reciprocating device andv is slidably engaged, during the intervals when said rotating de -v vice 'is inoperative, by a crank which rotatesin unison with said. rotating device; the oscillating -member driving the reciprofv I .higher speed; a transmitting mechanism,

catingdevice in the'opposite direction atV a

pinions

15, 15, 18, shaftl being. preferably interposedv between-the rotatin "device and oscillating member, and lthe rec1pr0cat ing device.- v

The feed of the paper' over the gate'pref impression c lowing mechanisms; the roll B is'u'ninte're' ruptedly revolved byA any desiredmeans (not shown) and the-`web C unwound thereably placed in the loop c of the web-between the rollers 31 androller 32. From roller 32 era'bly slightly out of'contact with the rear feed vcylinder F. After Vbeing wrapped around cylinder F, the web passes over the rollers E, E on lthe gate and then between feed cylinder 'F' and a roller 35, which preferably'bears with some force against the `paper on feed cylinder F. The feed cylinders F, Fl are ofthe same diameter and are geared together by -means of the shaft 36 and bevel gears 37. Feed cylinder F -has loosely mounted thereon, a gear 38 which is. meshed by a rack 39, guided'so as tohave vertical movement by the pins 40 which-extendthrough slots 41 in said rack, and the ra'cl'tis reciprocated by a connecting rodl42iand` crankl 42a on a gear 43 which 'from passes first around the rollers 31, then' over a roller32, a -weigh't`33 being preferlthe web passes over a rollerv34 which is prefmeshes with gear 23. The gear38, loosely 18 and brings the roller 27 on cra-nk 26 into mounted on the cylinder F", has 4secured '.125

60 the slideway 28 on the oscillating sector tions shown in Figs. 5 and 4,"causing thegear 19. A further'movement of rotation brings the parts .into successively the posisector' gear to be moved by a rapid motion toward the right, this relatively rapid mo- -thereto pawl carrier 44 having a pawl 45 which engages a ratchet wheel 46 rigid with cylinder F` (Fig. 6). Byy this arrangement intermittent rotary' motion is given to the feed cylinders F, F which, by a proper ad- 13? vices and mechanism constituting the press of my invention, as above described, will readily suggest themselves to thosey skilled in the art of printing press construction, I do not limit myself to these particulars eX- cept so far as certain of the claims herein are limited thereto.

I claim:

' l. In a web press, the combination with printing means, of a gate which supports the web, and mechanism for imparting movement to said gate in opposite directions at different speeds comprising a rack on said gate, a pair of pinions connected so that they rotate together, one of said pinions meshing with said rack, a sector gear which has constant rotation and which intermittently meshes with one of said pinions, an

oscillating sector gear ofy greater radius which meshes with the other of said pinions, a radial slide-Way on said oscillating sector gear and a crank rotating in unison with said rotating sector gear' constructed so that -it slidably engages with the slide-way on said oscillating sectory gear, while the rotating sector gear .is out of -mesh with its pinion.

2. In a printing press, the combination wit-h printing elements formed with co-acting surfaces and with recesses between said surfaces, of a reciprocating gate which carries said web through the printing point and which'is returned after each forward movement 4by a return movement at an 1ncreased speed, and means for feedmg sald web from said gate at intervals between printing operations comprising a feed cylinder arranged in' advance of said gate, a feed cylinder arranged back of said gate, said cylinders being geared together, means for intermittently driving said cylinders, a roller bearing against the forward feed cylinder, the web being loosely wrapped around the rear cylinder, supporting means for said web back of said rear feed cylinder, said means comprising supporting devices spaced apart between which the web may be looped, and a weight in said loop of the web.

3. In a printing press, the combination with printing elements formed with co-acting surfaces and Vwith -recesses between said surfaces, of a reciprocating gate which cari ries said web through the printing point and which is returned after each forward movement by a return movement at an increased speed, and means for feeding said web from said gate at intervals between printing operations comprising a feed cylinder arranged in advance of said gate, a feed cylinder arranged back of said gate, said cylinders being geared together, means for intermittently driving said cylinders, a roller bearing against the forward feed cylinder, the web being loosely wrapped around the rear cylinder, supporting means for said -web back of said rear feed cylinder, said means comprising supporting devices spaced apart between which the web may be looped, and. a weight in said loop of the web, said web adapted to be constantly fed to said supporting means.

. REUBEN D. COY. Witnesses:

P. H. TRUMAN, E; L. BREIDERT.