US1063273A - Reciprocating mechanism for printing-presses and the like. - Google Patents

Description

O, A. MGCAIN. REGIFROGATING MECHANISM FOR PRINTING PEESSBS AND THE LIKE.

APPLIGA'XZON FILED MAR. 11, 1912,

Patented June 3, 1913 5 SHEETEP'SHEET 1 View 6152965 J 3%,

O A. MCCAIN.

FOR PRINTXNG PRESSES AND THE LIKE.

5 SHEETS-SHEET 2.

Patented June 3,1913.

NG mncmmsm REGIPROOATI APPLICATION YILED MAR.U,1912.

G A. MCCAHL RECIPROGATING MEGHANISM FOE PRINTING PRESSES AND THE LIKE. APPLICATION FILED MAR. n, 19x2,

1,063,2?3 Patented June 3,1913.

52 SHEETS-SHEET 4 G. A. MQCAIN. ECBANISM FOR PRINTING PRESSBS APPLIGA'DION FILED MAR. 11, 1912.

Patented June 3, 1913' 5 SHEETS-SHEET 5.

REGIPROGATING M AND THE LIKE.

UNITED STATES.

PATENT di it/E.

CYRUS A. IVIGCAIN, OE

OAK PAR-K, ILLINOIS.

.6 Specification of Letters Patent.

Patented .5 uric 3. 191

Application filed March I1, 1912. Serial No. 688,023.

I '0 all whom it may concern:

Be it known that I, CYRUS A. MCCAIN, a citizen of the United States, and residing at Oak Park, county of Cook, and State oii Hli nois, have invented certain newand useful Improvements in Reciprocating echanisms for Printing-Presses and the Like, of which the following is a specification.

In certain classes of machines, lar e' masses have to be reciprocated at a considerable speed and retarded, stopped and oppositely accelerated at the ends of the reciprocatory movementin a short space This is the case with printing presses of the reciprocating type; the type bed is moved rapidly through the greater portion of each toaml-fro movement, preferably ata uniform speed, and is retarded, stopped and oppositely accelerated within a short space atits ends.

.lNIy invention consists in novel mechanisn-i forbringing about sucha movement in machines of this class. It is especially applicable to printing presses, although not limited thereto, and I have chosen to disclose it in that connection in the present application.

One object of the invention is to increasethe distance through which the reciprocat ing member will travel at high, preferably uniform, speed while maintaining the parts of substantially the same dimensions as heretofore, or, conversely. to obtain the same distance with parts of materially less dimensions.

Another object is to apply the. driving, retarding and accelerating forces more nearly in line with the center of inertia of the moving parts than heretofore, thereby greatly reducing the weight of the parts.

Another object is to graduate the retarding and accelerating forces differently than heretofore with a view to reducing the strain and shock to which they are subjected, especially at the ends of the reciprocating movement, and thus allowing for a reduction in.

size andv weight of the parts.

A mother object is to provide novel mechanism for disconnecting the reciprocating member from one driving member and connecting it to another as it approaches and recedes from the ends of its reciprocating movement.

Another object/is to reciprocate one of these driving members, or any member, in

fact, from a crank pin with a reciprocation in excess of the throw of the pin.

In carrying out these general objects in the construction of a printing press of the reciprocating type, I am enabled to produce a press which is simpler and lighter than presses incommcn use while maintaining the same ca 'iacit-y of output. or conversely, to 5 produce a simpler press of the same size-and f weight capable of a considerably larger outi put. in the former case, sheets of thesame length as are usual on the presses in common use may be printed, while in the latter case the sheets .may be considerably larger. These several objects and advantages, as welt as others hereinafter pointed out, will be best understood upon reference to the following detailed description taken in connecltion with the accompanying drawings, and i'the scope of the invention will be particnllarly pointed out in the appended claims. In said drawings, Figure l is a plan view of the printing press embodying my invention; Fig. 2 is a sectional elevation of the same taken on a longitudinal plane indicated by the line 22 of Fig. 1; Fig. is a section. illustrating a cam track forming part of theelevation of the press viewed from the top in Fig. 1; Fig. 5 is an elevation ofthe guide bracket and latch by which the bed is connected to theretarding, stopping and aceel-- crating portion of the mechanism; Fig. 6 is a partial sectional view of the same and an associated cam. track, the section being'taken on a plane indicated'by the line (L45 of Fig. 5; Fig. 7 is a transverse section, with parts removed. taken on .a plane indicated by the line 7-7 of Fig. 2; Fig. 8 is a comparative diagram illustrating the rangeand character of movement of the retarding. stopping and accelerating portion of the mechanism; Fig. 9 is a plan view of a detached portion of this latter mechanism; Fig. 10 is a vertical section of the same and the associated bed ,.,,and guideways, the plane of sectionbeing indicated by the line 10-10 of Fig. 9; and Figs. 11 to 15, inclusive, are diagrammatic views illustrating difierent positions of the mechanism. Throughout these figures, like characters referTolike--partsr-"' In the drawing, 20, 21, 22 and 23 designate side and end frame members or the press. Guideways 24, 25, 26 and 27 extend from end to end of the press between reciprocating mechanism; Fig. -1- is a side the end frames 22 and 23 and contain the usual slider rolls 28 upon which the bed 29 is adapted to travel in its to-and-fro movement under the impression cylinder 30. This latter is journaled in suitable hearings in upright extensions 31 and 32 of the side framesZO and 21, respectively; -A feeding table 33 is also mounted uponlthe upright extensions 31 and of theside frames .20 and El, respectively. The position of the inking rolls is indicated by the dotted circles so. As the bed 29 moves toand fro, the paper is fed from the table 33 to the cylinder 30, the impression is madefrom the type upon the bed 29, and the printed sheet is delivered from the machine. This much of the mechansm is old and, ofitself constt tutes no part of the present invention.

Motion is transmitted to the several parts of the machine through a main driving shaft 257 journaled in the side frame 20 and having fixed driving pulley 38 and a. loose idlcpu..- ley Upon this shaft, there are three pinions 40, l1 and 42. Pinion. 40 meshes with an intermediate gear wheel 48 mounted upon a stud shaft 44: extending from the side frame 20. The gear wheel 43, in turn. meshes with the gear wheel upon the shaft of the impression cylinder 30. lly this train of gears, motion is transmitted from the driving shaftto the impression cylinder. Pinion ll meshes with a pinion 46 likewise journaled upon a stud shaft extending from the side frame 20,and the latter pinion meshes with a gear wheel 47 keyed to 'a shaft 18 extending between the side frames 20 and 21 and carrying the cam 49. This latter member cooperates with other parts in the reciprocation of the bed 29, as will he pointed out more fully hereinafter. Pinion 4:2 meshes with gear wheel 50 mounted upon one end of the shaft 51 jointnaled in the rocking hanger 52. A gear wheel 53 is mounted upon the opposite end of the shaft 51 and meshes with a gear wheel also journaled in the hanger-52. llhe hanger 52 is journaled at an inter-- mediate boint in bearings and 56 formed on the under side of the 'guideways 26 and 2'. An arm 57 extends downward from the hanger 52 and is provided at its lower end with a stud which passes into the cam track 59 in the cam member 49. As the latter rotated, the hanger 52is rocked in its bearings and 5G to shift the position of the Wheels 53 and 54 by which the bed 29 is, reciprocat-ed. The wheels 53 and 54 are adapted to be thrown into and out of mesh with a rack 60 upon the under side of the hi5; '39 to br ng! about this reciInOCat-ion. The parts are no positioned that both gear wheels 53 and 5 may he held out of operative engagement with the rack 60, or either one may be thrown into engagement with Inasumch as these wheels rotate in up 5 posite directions, it will he seen that when one is in engagement it will drive the nod in one direction, and when the other is in engagement it Will drive the bed in the opposite direction. "These several trains of gearing are located near the center of the press and a transverse frame member 61 is located at this point. between the side frames 20 and 21 to strengthen the entire frame structure and to support the pillars (32, 63, (i l and G5 which support the guide ways 24, 25, Q6 and 27, respectively.

In operation, the gear wheels 53 and i'i-l drive the bed 29 through the central portions of its movement. but, itv approaches the ends of its to-andfro nmri-jamcnt, these gear wheels are thrown out of n'iesh and the motion of the bed is put under the control oi the link 66. The central stud 67 on this link has reci rocating movement which is substantially, parallel to that of the bed 29 and, by coupling the bed to it at the ends of its motion, the bed is retarded, stopped and operatively accelerated up to the peripheral speed of the wheels 03 and 54. hen this is reached, the proper Wheel 53, or 54, is hroughtinto mesh with the rack 60 to continue the movement of the bed until the ping and accelerating at the ends of the heds motion are accomplished by the link 66. This link is provided with slots 68 and 69 through which crank pins 70 and '71 upon the Wheels 54 and 53 extend.- The link ()6 maybe held upon the pins 70 and '51 in any suitable way; I, however, preferably employ washers 70 and 71* secured b" screws 70 and 71 screwed into the ends 0 the pins 7 and 71, respectively. These washers and screws, which hold the link 66 in position and allow it to move freely upon the pins. are shown in Fig. 9 but omitted at a uniform speed and the retardin stop- .l'o-r clearncss, from the other figures; of the The ends of the link 66 also drawing. provided with shoulders 72 and 73 which cooperate with the crescent-shaped projections 74 and 75 to prevent the link from slid 'ing upon the pins 70 and 71 during certain positions or" the parts. With this arrangement, the stud 67 upon the link 66 travels approximately ina line parallel to the direction of motion of the bed 29, as indicated by the points 76 in the diagram of Fig. 8. Connection is established between the stud 67 and the bed 29 so as to bring about its reversal at the ends of its reciprocating movement by means of: sliding latches 77 and 78. mounted in guide brackets 7 9 and S0,

- vided with studs having anti-friction rollers cam ways extend lengthwise of the member the printing movement continued while the 85 and have downwardly deflected portions gear wheel 54 rotated thirty degrees beyond .86 and 87, respectively, near their inner the position of Fig. 13. so the point at which ends. As the bed moves under the propelthe uniform speed began in the opposite diling power of the gear wheels, the rollers rection was reached thirty degrees before 81 and 82 travel along the horizontal porreaching the position of Fig. 15. Thus Fig. tions of the camways 83 and 84 and, when illustrates the parts after the gear wheel the bed 29 approaches one end of its move- 5?) has been thrown into mesh with the bed. ment, the roller 81 passes downward into the This wheel, of course. drivesthe bed in the portion 86 of the cam way 83 and causes the opposite direction, to carry it to the opposite latch 77 to engage the stud G7 and when end of its reciprocating movement. 'When the bed approaches the other end of its movethis opposite end is reached, the bed is again ment, the roller 82 moves into the depressed retarded, stopped and accelerated in the portion 87 of the cam way 84 and thereby manner I have just described. \Vith the 3g brings the latch 78 into latching engagement parts proportioned as illustrated, the retarth with the stud 67. In each instance, when the ing, stopping and accele 'ating takes place reversal has taken place and when the bed in one hundred and twenty degrees of rotahas been. accelerated up to the speed of the tion of the gear wheels 53 and 5t, and thirty wheels 53 and 54, then the latches are disdegrees, so to speak, are added to the printengaged from the stud 67 by the movement ing movement and thirty degrees to the uniof the rollers out of the depressed portions form speed return movement. With gear of the cam ways into the horizontal'porti ns. wheels and 54 having twenty inches pitch The movement of the. bed 29 through its diameter, these results may be obtained by complete cycle will be readily understood positioning the crank pins with their cen- 30 from an inspection of Figs. 11 to 15, inters 1.0873 inches inside ofthe pitch circles. elusive. Inl ig gll, the gear wheel 54 is in By positioning the crank pins at other relamesh with the rack 60 and the parts are in tive distances, other divisions of the one the position to begin printing. In other hundred and eighty degrees may be had. words, the stu'd'GT is disengaged and the bed Thus, all the one hundred and eighty de is under the sole control of the driving wheel grees may be utilized in retarding, stop 100 Fig. 12 illustrates the bed at an interping and accelerating, and none added to the mediate point of the printing motion, The uniform speed movement to print or re gear wheels and 54 have moved through turn; or, a very few degrees may be utilized onchundred and eighty degrees each. Fig. in retarding, stopping and accelerating, and

40 13 illustrates the parts they approach the the balance divided between the printing 5 end of the printing movement. 'In this po and return movements. It will also be noted sition, the gear wheels and 54 have each that. with the proportions shown, the pin (37, made one complete revolution from the iniwhich in itself constitutes a reciprocating tial position illustrated in Fig. 11. \Vith member. has a to-and-fro movement as great the parts having the proportions illustrated, as the diameter of the wheels 53 and fit.

the printing movement, however, noteom- Tn the diagram of Fig. 8. l graphiealty pleted until the gear wheels have moved show certain elmrzwteristics of my novel approximately thirty d j grees farther. hen movement. Vith the dimensions proporthis additional distance has been passed tioned as there shown, the retardation and through, then the hanger 52 is rocked by stopping" take place while the gear wheel the cam member 49 and the gear 54 is moves through approximately sixty degrees. thrown out of mesh, but. not before latch 78 This will be seen by comparing t le'spaces has engaged stud 67 to securely lock the bed. laid off on the upper side of the line 88 l to the link 66. At this point, the retardation with those projectco on its under side. The

55 of the bed begins. It continues until the former represents the. distances traveled by gear wheel 54- reaches the 90 degree position. the periphery of the gear wheel and the This brings the parts into the position illus latter the distances traveled in the same time trated in F 14. Here the end of the mointervals by the center of the link, which I tion is reached and all the parts are, for the before noted passes through the points 76 60 instant, at rest. The further movement of upon its outward movement. By eompar-- the gear wheels 53 and 54 to the position ing these spaces along the upper and lower S1 and 8-2 for engagement in the cam tracks, or cam ways, 83 and 84, respectively. These illustrated in Fig. 15 starts the bed from its position of rest, carries it through its period .the parts continued some distance farther before the printing period ceased, so in Fig. 15, the parts have. passed the same distance beyond the point at. which the uniform speed Just as period in the return motion began.

sides of the line 8S89, I see that both are traveling at the same speed at about the.

of acceleration and brings it some distance. i

I thirty degree point. And so the. bed 2:) may 0 und r its uniform speed. Just as in Fig. 13, t

be shifted from the gear wheel or 5-1 to 133 the stud 67 on the link 66 at this thirty degree point. Consequently, the retarding and stopping is completed in ninety degrees minus thirty degrees, or sixty degrees. lVit-h different proportions and'dimensions of parts, this shifting point would be differently located. As before noted, by varying these proportions and dimensions, the position of the shifting point may be positioned at any desired point through a Wide range.

A comparison between the two parts of Fig. 8 shows the differences in the'character of my novel movement and the simple cranh movement, whose tirojec-tion is a simple harmonic motion. The latter is the movement.- employed for retarding, SlOIJPlIlg and accelerating the beds of machines in connnonuse. It will be seen at once that it requires a revolution of ninety degrees to retard and stop as compared with sixty degrees, more or less, in my movement; and :n'iother ninety degrees, as compared with sixty degrees, more or less, lo accelerate. By (minparison. it will also be seen that in the old morenient, the first thirty degrees do not ma terially retard the bed movement, requiring practically all the retardation to take place in the remaining sixty degrees of the quad rant; while with my movement. I retard in the sixty degrees, and have a greater space in which to accomplish it. A comparison of the dimensions (1, {1. e. (X, Q. with the rerresponding diincusions 0., l1", (1'. r. s instructive. The illIIPll lUHS a, 0 s i w thatin my motion a nun-h longer strok is obtained than in the chi motion it oh mension. i), 7;, show that l have a much longer distance in which to retard and slug,

and to accelerate, than in the old motion. although using some of the rotation used by the latter in retarding. to print by. The dimensions a, a, show how much greater printing: length i get than was present in the old motion. 'lhc dimensions ti. how that as the Wheel passes from the thirty degree position to the sixty degree position (halfway to the ninety degreeposition), l have more (lln'ltifltt in which'torretard, or accelerate, in this-portion oi the motion, than in the old motion. The distances 0. 0', show that l have a much longer period in the last thirty legit-res oi the quarter revo- 'lution in which to continue the retardation lhe rate oi.

than in the chi movement. change during the period the lied moves through these dist: NCCSU, c, also more gradual in my movement than in the old movement. in the old movement, the rates of change in speed of the bed is very great and producesanobjectionable sudden jer which my movement avoids because of its better graduation of the r tarding force. i A. further comparison short; hat he retarding and accelerating forces are applied more nearly in a line parallel to the directiiy. of

movement of the bed. And the dimensions if, f, show the distance that .I add to the old printing length, which is used in the old motion to no useful end because, although its motionis yarying and cannot be used for printing, yet it does not appreciably retard, or accelerate. By way of specific compari son, if the pitch circles of the gear wheels center of the crank pins in my movement be located 1.0873 inches inside the pitch circles and the crank pin of the old motion he lo- -cated on the pitch circle. then in my morement the bed may be shifted from the gear As helm-e indicated, these dimensions maythe pcvitions ot the crank pins relatiyeto the centers of the gear wheels-. Under some (.Ulitlll'lt'lDS, one position may be desirable, and nnoer other conditions, other positions,

tages of my movement will be entirely clear without considering other specific instances.

From the above description and comparisons, it will be seen that I have succeeded in and heavy members such as the type beds of printing presses of the reciprocating type which will accomplislf'zill therestilt and functions of machines of the art, Wh le at he output. the invento printing still there are many a novehreciprocating motion which difi'ers materially from a simple harmonic motion and which may be u. fill in many relations other than the particular one herein disclosed.

the speed of the bed through this portion of 7 have a diameter of twenty inches. and the 7 wheel to the link exactl T at "the thirty degree I .l r t pointand vice versa, and the comparative I dimensions areas -1"'oll ws:

a equals 12.3080 inches 10.0000 Y 85 I) 7.2479 Z1 5.0000 t 4 a asses 1 3.6603

be varied through a wide range by varying 1 It ishelieyed, however, the various ad'vanproviding mechanism for reciprocating large 119 the same time simplifying the st-- ucture, rev the mechanism herein 120 and out of mesh therewith I have provided/ t will also be apparent that in carrying out my invention, many alterations and modifications may be made in the specifieform herein disclosed without departing from the spirit and scope of the invention. I, therefore, do not wish to be limited to the specific matter herein disclosed, but aim to cover, by the te msol the appended claims, all such alterations and modifications, well as different applications.

-Y'Vl'nt- 1 claim new and desire to secure by Letters Patent of the United States i:---

1. In a printing press, the combination of reciprocating member, a wheel for driving said member, means for throwing said Wheel out of operative driving relation with said member when the latter approaches the end of its movement, and means, including a connecting link intermediate of said wheel and member, operative upon less than a quarter revolution of said wheel to retard and stop said member.

2. In a printing press, a reciprocating member, a. wheel for driving said member, means for throwing said wheel out of operative driving relation with said member when the latt r approaches the end of its movement, a crank. pin on said wheel, and mechanism, including a link cooperating with said pin, to subsequently retard and stop said member upon other than a quarter revolution of said wheel.

in a printing the combination of a reciprocating member, a wheel for driving said member, means for throwing said wheel out of operative driving relation with said member when the latter approaches the end of its movement, and mechanism, including a second wheel and a link connected between said wheels. for subsequently retarding and stopping said member upon other than a quarter revolution of said first wheel.

4. lo a printing press, the combination of a reciprocating member, a rack on said mem' her, a gear wheel for engaging said rack to drive said member, means for throwing said gear wheel out of mesh with said rack when the latter approaches the end of its movement, and means, including a connecting link intermediate of said wheel and mom her, operative upon less than a quarter revolution of said Wheel to retard and stop said member.

o. In a printing press, the coniibination of a reciprocating member, a pair of driving wheels for alternately driving said member in opposite directions, means for throwing each wheeloutof operative driving relation with said nie'iber' as the latter approaches the end of its i'oevement under the driving ction of said wheel, and means subsequently operative at each end of the movement of said member to retard and stop said member the combination of upon other than a quarter revolution of said wheels.

(3. In a prmtmg press,

the ccmlrlinalien o1 a reciprocating member, a wheel for driving said member, means, including a connecting link intermediate of said wheel and member, operative upon less than a quarter revolution of said wheel to accelerate said member from rest to the speed of said wheel and means for thereupon throwing said wheel into driving relation with said member.

7. In a printing press, the eombination o'f reciprocating member, a Wheel for driving said men1ber,acrank pin on said wheel, mechanism, including a link cooperating with said pin, to accelerate said member from restto the speed of said wheel upon other than a quarter revolution of said wheel, and means for thereupon throwing said wheel into driving relation with said member.

8. In a printing press, the combination of a reciprocating member, a wheel for driving said member, mechanism, including a second wheel and a link connected between said wheels, for accelerating said member from rest to the speed of said wheel upon other than a quarter revolution of said wheel, and means for thereupon throwing said wheel into driving relation with said member.

5). In a printing press, the combination of a reciprocating member, a rack on said member. a gear wheel for engaging said rack to drive said member, means, including a connecting link intermediate of said wheel and member, operative upon less than a quarter revolution of said wheel to acceleu ale said member from rest to the speed of said wheel, and means for thereupon throwing said gear wheel into mesh with said rack.

10. In a printing press, the combination of a reciprocating member, a pair of driving wheels for alternately driving said member in opposite directions, means o ierative upon other tcun a quarter revolution of said wheels Lo'aeceleiate said member from rest lo the speed of that one of said driving wheels operative to continue the u'ioveincnt of said member, and means for thereupon throwing said wheel into driving relation with said member.

11. In a-"printing press, the combination oi a reciprornting member, a Wheel for driving said. memlierat a uniform speed, means for throwing said wheel out of operative driving relation. with said member when the latter approaches the end of its movement, and means, including aconnecting link intermediate of said wheel and member, subsequently operative upon less than a half revolution of said wheel to retard, stop" and oppositely accelerate said member up to said uniform speed. I

12. In a. printing press, the combination of a reciprocating member, a wheel for driving said member at a uniform speed, means for throwing said wheel out of operative driving relation with said member when the atter approaches the end of its movement, a crank pin on said wheel, and mechanism, including a link cooperating with said pin, to subsequently retard, stop and oppositely accelerate said member up to said uniform speed upon other than a half revolution of said wheel. I

In a printing press, the combination of a reciprocating member, a. wheel for driving said member at a uniform speed, means for throwing said Wheel out of operative driving relation with said member when the latter approaches the end of its movement, and mechanism, including a second wheel and a link connected bet-ween said wheels, for subsequently retarding, stopping and. op: positely accelerating said member up to said uniformspeed upon other than a. halt revolution of said wheels.

14. In a printing press, the combination of a reciprocating member, a rack on said member, a gear wheel for engaging said rack to drive said member at a uniform speed, it cans for throwing said gear wheel out of mesh with said rack when said member approaches the end of its movement, and means, including a connecting link intermediate of said wheel and member, subsequentl operative upon less than a halt revolution of said gear wheel to retard, stop and oppositelyaccelerate said member up to said uniform speed.

15. In a printing press, the combination of a reciprocating member, a pair of driving wheelszfor alternately driving said member in opposite directions, means for throwing each wheel out of operative driving relation with said member as the latter approaches the end of its movementundcr the driving action ofsaid wheel, and means subsequently operative at each end oi the movement of said member to retard, stop and oppositely accelerate said member up to the speed given it by said wheels, upon other than a half revolution of said hcels.

16. In a printing press, the combination of a reciprocating member, a wheel for driving said nicmbcr. the line of movement of said. member being substantiall tangential to said occl, llltilll: for throwing said wheel out of operative driving relation with said member whcn the latter approaches-lhc end of its movci'nciit, and int-ans tor suhscipa-nt l v applying and continuing the application ol force substantially parallel to said member I and in line with the ccntti of said wheel to control the further nmvcmcnt. ol said mcmher.

'17. In a printing press. the combination of a i'ct'dprocating member, a whccl 'lor drivi ing said member, the lure of movement of said member being substantially tangential t-o saidwhccl, means for applying and con:

l l l l l l l l l l l l incnt.

' mg said member,

tinuing the application of force substantially parallel to said member and in line with the center of said wheel to advance said member up to the speed of said whecl, and means for thereupon throwing said wheel into driving relation with said member.

18. In a. printing press, the combination of a reciprocating member, a wheel for driving said member through. the central portion of its reciprccatiiig movement, the line of movement of said member being substan tially tangential to said wheel, and means for applying and continuing the application of force substantially parallel to said membet" and in line with the center of said wheel to control the end portions of said recipro eating movement.

, 19. In a printing press, the combination of a reciprocating member, a wheel fol-drivsaid member through the central portion of its reciprocating movement, a second wheel geared to said first mentioned wheel, a second member ii'idependentity connected to sat wheels and having a reciprocating movement substantially parallel to that of said first mentioned member, and means for coupling said members together to control the end portions of the reciprocating movement of the first member by the second.

20. In a printing press, the combination of a reciprocating member, a wheel for driv ing said member, means for throwing said wheel out of operative relation with said member when the latter approaches: the end of its movement, a second wheel geared to said first mentioned wheel, and means in dependently connected to said wheels for subsequently"applying force to said member at Faibstantially a single point to control its further movement.

21. In a printing press, the combination of a reciprocating member, a wheel for driving said member, a second whccl geared to said first mcntio-ncd whccl. means independ ently connected to said wheels for applying force at substantially a single point to advance said member to the spccd of said whech'and means for thcrcnpoirthrowing said wheel into driving relation with said member.

22. In a printing pres the combination of a rccipro ating member, a wheel for driving said member through the central portion ol its reciprocating movement. a second wheel geared to said first mentioned wheel. and means indepczulcnily ct'innected to said wheels for applying force to said member at substantially a single point to control the end portions of said reciprocating move- 23. In a printing press, the combination of a reciprocating member, a Wheel for drivmeans for throwing said wheel out. of operative driving relation grit-h said member when the latter said member when the latter approaches the end of its movement, and means, including a crank pin on said wheel and a link coop crating with said pin and member, operative within a length other than onelndt' the throw of said pin to retard tllltl stop said member In a printing press, the c mbination of a reciprocating member, a wheel for driving said member, means, including a crank pin on said wheel and link cooperating with saidpin and member. operative within a length other than one-halt the throw of said pin to accelerate said member fronrest to the speed of said wheeh and incline for thereupon throuing said wheel into driving relation with said member.

25. In a printing press. the combination of a reciprocating member, a wheel or driving said member, means for throwing said wheel out of operative driving relation with approaches the end of its mmrement, and means. including a crank pin on said wheel and a link coiiperating with said pin and member, opelative. Within a length other than one-halt the throw of said pin to subsequently retard, stop and oppositely ac elerate said member up to the speed of said wheel.

26. in a printing press, the combination of a reciprocating member. a wheel for driving said member, means for throwing said wheel out of operative driving relation with said member when the. latter appreaclies the end of its movement. and reciprocating means, having a movementas great as the diameter of said Wheel, for retarding and stop iing said member within a length other than one half of said diameter.

In a printing press, the combination of a reciprocating member, Wheel for driving said member, reciprocating means, hav in'ga iovementas great as the diameter of said wh'eel, for accelerating said member from rest to the speed of said wheel within a length other than one half said diameter, and means for thereupon throwing said Wheel into driving relation with said member.

28. In a printing press, the combination of a re'ciprpcating member. a Wheel or driving said member, means for throwing said wheel out of. operative driving relation with said member when the latter approaches the end of its movement, and reciprocating means, having a movement as great as the diameter of said wheel, for retarding, stopping and oppositely accelerating said member up to the speed of said heel.

In a printing press, the combination of a reciprocating member,

mg said member a given length at a unia wheel for driv:

form speedupon a fractional number of revolutions, and means, including it connecting link intermediate of said wheel and member, for retarding and stopping said member upon a further fractional revolution oi saitl wheel. v

30. in a printing press, the combination of recipriiicating member, a wheel for driving said member a given length at a uniform speed upon a fractional number of revolutions. and means. including a connecting link intermediate of said wheel. and member, or retarding, stopping and oppositely accelcrating said member up to said speed upon a further fractional. revolution of said wheel.

ill. In a printing press, the combination of a r-' ciproc:.i.ting member, a pair of driving vlzeels having an integral number of revolutions for each to-and-fro movement of said member, means for putting said. Wheels in operative driving relation with said member for a fractional number of revolutions upon each to-and-fro stroke respectively, and means for retarding, stopping and oppositely accelerating said member up to the speed. of said Wlll5 at each end of said reciprocating movement, in. the remaining fractional revolutions necessary to complete said integral number of revolutions.

In a printing press, the combination of a reciprocating member, a pair of up ositely rotatable intcrmeshing gear wheels, means for placing said wheels alternately in driving relation with said reciprocating member, a link adapted to extend across the point of engagement of said gear wheels in all positions of the parts, loose connections between the ends of said wheels respectively, and means for uti izing link in controlling the movements of said reciprocating member.

33. in a printing press, the combination of a reciprocating member, a pair of oppositcly rotatable intermeshing gear wheels, means for placing said wheels alternately in driving relation with said reciprocating member, a link point of engagen'ient of said gear wheels in all positions of the par 3, pin and slot conneetions between the ends of said link and said wheels respectively, and means for utilizing said link in controlling the movements of said reciprocating member,

3%. in a printing press, the combination of a reciprocating member. a pair of oppositely rotatable internieshing gear wheels, means for placing said wheels alternately in driving relation with said reciprocating member, a link adapted to extend across the point of engagement of said gear wheels in all positions of the parts, pins near the pcripheries of said wheels respectively extending through slots in. the ends of said link, means for holding said link from sliding on said pins in certain positions of the parts.

link and said adapted to extend across the tion, said -pins bei and means for utilizing said link in controlling the movements of said reciprocating member. I

35. In a printing press, the combination of a reciprocating member, a pair of oppositely otatable intermeshing gear wheels,{ means for placing said Wheels alternately in driving relation with said reciprocating member, a link adapted to extend across the 1 point of engagement of said gear wheels in all positions of the parts, pins near the peripheri'es of said wheels respectively extendi ing through slots in the ends of said link, col operating engaging surfaces on said wheels and link for holding said link from sliding l on said pins in certain positions of the parts, and means for utilizing said link in con-l trolling the movements of said reciprocating member.

36. In a printing press, the combination of a reciprocating member, a pair of oppo- I sitely rotatable members. movable at the same angular velocity, means for placingl said latter members alternately in driving l relation with said former member. a link loosely connected at its ends to said rotatable members at equal. distances from their cen ters of rotation and in position to extend over a point between said members in all positions of the parts, and means for utilizing said link in controlling the movements of said reci n'oeating member.

37. In a printing press, the combination of a reciprocating member, a pair of oppositely rotatable members movable at the same angular \'Ql(?(.'lty, ll18tU1S for placingl said latter meml'iers alternately in driving] relation with said former member, crank! pins on said rotatable meliibers at: equal distances from their respective-centers of rota I lgz positioned so as to i maintain a minimum variation of distance 1 between them as said'n'iembers rotate, a link having slotted connection with said pins at l its ends, and means for utiliz-i'ii said link in controlling the movei'nents'iof said recip-ro eating member.

38. in a priming press the combination of a reoipru-ating memlrrfa pa r of oppw sitel) rotatable members moi able at the Pltttilnfl same angular velocity. means for said latter members alternately in relation with said. former mend). r. crank pins on said rotatable members at pial distanres from their respective centers of rot ation, said p ns being pos tioned so as to maintain a minimum variation of distance between them as said .men'ibe s rotate, a link having slotted connection with said pins at its ends means for holding said l nk from sliding on said pins in certain positions of said rotatable members, and means for ntilining said link in controlling the movements of said reciprocating member. t

39. In a printing press, the combination l said members and l riving l l l of a reciprocating n'ien'iber, a pair of oppositely rotatable members inmable atthe same angular velocity, means for placing said latter members alternately in driring relation with said former member. crank pins on said rotatable members at equal distances from their respective centers of rotation, said pins being positioned so as to maintain a minimum variation of distance between them as said members rotate, a link having slot-ted connection with said pins at its ends cooperating engaging surfaces on ink for holding said-link from sliding on said pins in certain positions of said rotatable members, and means for utilizing said link in controlling the movements of said reciprocating member.

40. In a printing press, the combination of a reciprocating bed, a rack on said bed, a pair of gear Wheels for alternately engaging said rack to reciprocate said bed, cam n'l'echanism for throwing said wheels into and out of mesh with said rock, a link having pin and slot. connections with said wheels at its opposite ends. latch mechanism for connecting said bed to an intermediate point of saidlink, and cam mechanism for operating said latch mechanism just l aitoro and after said bed reaches the end of its movement, whereby said rack is driven by said wheels during the greater portion of its to and fro movements and is transferred to said link to be retarded, stopped and oppositely accelerated at the ends of said move ments.

til. In a printing press, the COl'l'lblDtlilOlt of a. reciprocating member, a pair of oppositely rotatableintermeshing gear wheels. means for placing said Wheels alternately in driving relation with said reciprocating int-antler. a link extending across the point of eni 'agement of said gears in all positions, loose "connections between said wheels and the ends of said links, and means for utilizing said ,link in controlling the movements of said reciprocating member.

In a printing press. the combination of a crank pin. a rectilinear i reciprocating member, and permanent; connections between said pin and meml'ier wherein; said member has a throw in excess of that of said crank pin.

43. In a printing press, the combination of a reciprocating member, a Wheel for di rectly engaging said member to drive it, means for throwing said wheel out of operative driving relation withv said member when the latter approaches the end of its movement, and means including a link directly connected to said Wheel, operative upon other than a. quarter revolution of said fieto drive said member, means for throwing said gear wheel outof mesh withsaid rack when the latter approaches the end of its movement, and means including a link di- I'eotly connected to said gear wheel, operat lve upon other than a quarter revolution of said gear wheel to retard and stop said member. 1

45. In a printing press, the combination of a reciprocating member, a wheel for driving said ember, means including a link di rectly connected to said wheel, operative upon other than a quarter revolution ofssid wheel to accelerate said member from rest to the speed of said wheel, and means for thereupon throwing said wheel into driving relation with said member. I

46. In a printing press, the combination of a reciprocating member, a rack on said member, a. gear wheel for engaging said rack to drive said member, means including a link directly connected to said wheel, operative upon other than a quarter revolution of said wheel to accelerate said member from rest to the speed of said wheel, and means for thereupon throwing said gear wheel into mesh with said rack.

47. In a printing press, the combination of a reciprocating member,awheel fordriving said member at a uniform speed, means for brewing said wheel out-of operative driving relation with said member when the latter approaches the end of its movement, and means including a link directly con nected to said wheel, subsequently operative upon other than a half revolution or said wheel to retard, stop and oppositely accelerate said member up to said uniform speed.

48. In a printing press, the combination of a reciprocating member, a rack on said member, a gear wheel for engaging said rack to drive said member at a uniform speed, means for throwing said gear wheel .out'of mesh with said. rack when said member-21p preaches the end of its movement, and n'iears including a link directly connected to s d. wheel, subsequently operative upon other than a half revolution of said wheel to retard, stop and oppositely accelerate said member up to said uniform speed.

9. In a printing press, the combination of a reciprocating member, a wheel for driving said member through the central portion of its reciprocating movement, a second wheel geared to said first mentioned wheel, a second member supported solely by said wheels and having a reciprocating move ment substantially parallel to that of said first mentioned member, and means for coupling said members together to control the end portions of the reciprocating move ment of the first member by the second member.

50. In a printing press, the combination of a reciprocating member, a wheel for drivlug said member, means for throwing said wheel out of operative relation with said. member when the latter approaches the end,

L of a reciprocating member, a wheel for driv ing said member, a second wheel geared to said first mentioned wheel, means supported solely by said wheels and operative to apply force at substantially a single point to advance said member to the speed of said wheel, and means for thereupon throwing said wheel into driving relation with said member.

In a printing press, the combination of a reciprocating member, a wheel fordriving said member through the central ,portion of its reciprocating movement, 3,,SQC, ond wheel geared to said first mentioned wheel, and means supported solely by said Wheels and operative to apply force to said member at substantially a single pointto cont-o1 the end portions of its reciprocating movement. I

In a printing press, the combination of a reciprocating member, a single rack on said member, a pair of gear wheels for altern-ately engaging said rack to drive said member in opposite directions, means for' throwing said wheels into and out of mesh with said rack, and means operative upon other than a quarter revolution of said wheels to retard and stop said member atther,

ends of its movement.

54. In a printing press, the combinationof a reciprocating member, a single rack on said member, apair of gear wheels for alternatel y engagmg said rack to drlve said member in opposite direct-ions, means for throwing said wheels into and out of mesh with said rack, and means operative upon other than a half revolution of said wheels to retard, stop and oppositely accelerate said, member up to the speed of said Wheels, at each end of its movement. 7

In a printing presls, the combination of a reciprocating member, a pair of gear wheels, a. link connected at its ends to said wheels respectively, and means actuated thereby to retard and stop said member at the ends of its reciprocating movement.

56. In a printing press, the combination of a reciprocating member, a wheel for driving said member, means for throwing said wheel out of operative driving relation with said member when the latter approaches the end of its movements, and means for subsequently applying and continuing the applidistance from said member in a direct-ion substantially parallel to the direction of movement of said member to retard and stop said member in other than a quarter revolution of said wheel.-

5 5 7. In a printing press, the combination of a reciprocating member, a wheel for driving said member, means for throwing said wheel into and out of driving relation with said member, a link connected at one point m to said wheel and at another .point to said member, and means associated with said link for bringing about a retardation and stopping of said member at the ends of. its reciprocating movement in other than a' quarter revolution of said wheel. n

58. In a printing press, the combination of a crank pin, a unitary reciprocating member, connections solely between said pin and member whereby said member has a throw go in excess of that of said crank pin, a second v reciprocating member as a whole having a movement parallel to said first member, and

means for utilizing the movements of said first member in controlling the movements of said second member,

59. In a rinting press, the combination of a crank pin, a unitary reciprocating member, connections solely between said pin and member whereby said member has athrow in excess of that of said crank pin, a second reciprocating member, and means for con;

, necting said first member to said second member as the latter approaches each end of its reciprocating movement to control the reversing movements of the latter by the former.

60. In a printing press, the combination of a reciprocating member, a'wheel rotatable an integral number of revolutions for each 40 to-and-fro movement of said reciprocatlng member and operative to drive said member a given length at a uniform speed upon a fractional number of revolutions, a crank pin carried by said wheel, and means, in-

eluding a member connected to said crank -an integral number of revolutions for each tonnd-fromovement of said reciprocating member and operative to drive said member a given length at a uniform speed upon a fractional number of revolutions, a crank pin carried by said wheel'fand means, includlng a member connected to said crank pin and having ,a throw other thanthat of 50 said crank pin, for retarding, stopping and oppositely accelerating said reciprocating member up to said speed upon a further fractional revolution of said wheel. x

62. In a printing press, the combination as of a reciprocating member, a wheel for drivcassava ing said member through a portion of its movement, a crank pin carried by said wheel, and means, including a link longitudinallymovable on said pin and adapted 63. In a printing press, the combination of a reciprocating member, a wheel for driving said member through a p tion' of its movement, a crank pin cairied by said wheel, and means, includlng connections with said pin and member, whereby said member is retarded and stopped in a distance other than the corresponding portion of the throw of said crank pin and upon other than a quarter revolution of said crank pin.

64. In a printing press, the combination of a reciprocating member, a wheel for driving said member through a portion of its movement, a crank pin carriedby said wheel, and means, including a link longitudinally movable on said pin-'and adapted to be connected with said member, whereby said member is accelerated from rest up to the speed imparted by said wheel in a dis tance other than the cones'ponding'portion of the throw of said crank pin.

65. In a printing press,-the combination of a reciprocating member, a wheel for driving said member through a portion of its movement, a crank pin carried by said wheel, and means, including connections. with said pinand member, whereby said member is accelerated from restn-p to the speed imparted by said wheel in a distance other than the corresponding portion of the throw of said crank pin and upon other than a quarter. revolution of said .crank pin.

66. In a printing press, the combination of a crank pin, a reciprocating member, and means, including a link longitudinally slidable upon said pin and adapted to be connected to said member, whereby said member is brought from rest to a speed as great as the peripheralspeed of said crank pin in a distance other than the corresponding portion of't'he throw of 'said.,crank pin.

67. In a printing press, the combination of a crank pin, a reciprocating member, and means, including a link longitudinally slidable upon said pin and adapted to be con nected to said member, whereby said member has its. speed reduced froma speed as great as the peripheral speed of said crank pin to zero in a istauce other than the corresponding portion of the throw of said crank pin.

68, In a printing press, the combination of a reciprocating member, wheels for driv-' in said member through the central portions respectively of its reciprocating movement, a crank pin carried by each said wheel, a second member having a reciprocating member movement substantially parallel to that of said first member, means whereby the rotation of said crank pins gives said second member a throw greater than the throw of either of said crank pins, and means for coupling said membgfiihgether to control 'the end portions of thelreciprocating movement of the first menilaenbyithe second.

69. In a printing pressythe combination of apair of crank.pir1's,'a reciprocating connections between said pins and member whereby said member has a throw inexcess of that of either of said pins, a.

' her, connections between sai pins and memher whereby said member has a throw in excess of that of either of said pins, a second,

reciprocating member, and means for 'con-.

meeting" said first member with said second member as the latter approaches each end of itfieciprocating movement to control the reversing movements of the latter by'the .former.

'71. In a printing press, the-combination of a reciprocating member, wheels for respectively driving said member a given length at a uniform speed upon a fractional number-of revolutions, the one in one direction and the other in the opposite direction, ins carried by said wheels, and means, mcludinga member connected to said crank pins and having-a throw other than that ofeithenof saidcrank pins, for retard-- ing and stoppin said reciprocating member i1 one further raetional revolution of said -w eels respectively.

72. In a printing press, the combination of a reciprocating member, wheels for re spectively driving said member a given length at a pniform'speed upon a fractional number of revolutions, the one in one direction and the-other in the opposite direction, crank pms carried by said wheels, and means, including a member connected to said crzehk pins and having a throw other than.

that Qt said crank pins, for retarding, stop ping and oppositely accelerating said rec p- I rccat mg member ,upto said speed upon a further fractional revolution of said wheels respectively.

' 73. In a printing press, the combination of a reciprocating member, wheels for respectively driving said memberthrough portions of its opposite movements,=;cra'nk pins carried by said wheels, and means, mcludmg connections with said pins and member,

whereby said member is retarded and stopped in a distance other than the corresponding portion of the throw of said crank pins respectively.

74. In a printing-press, the combination of a reciprocating member, wheels for respectively driving said member through portions of its opposite movements, crank pins carried by said wheels, and means, in-

cluding connections with said pins and member, whereby said member is accelerated from rest up to the speed imparted by said wheels respectively in a distance other than the corresponding portions of the throw of said respective crank pins.

75. In a printing press, the combination of a pair of crank pins, a rcciprocatingmemher, and means, including connections with.

said pins andmember, whereby said member is brought from rest to a speed as great as the peripheral speed of said crank pins in a distance other than the corresponding portidn of the throw of said crank pins.

76. In a. printing press, the combination of a pair of crank pins, a' reciprocating member, and means, including connections with said pins and member, whereby said member has its speed reduced from a speed as great as the peripheral speed of said crank pins to zero in a distance other than the corresponding portion of the throw of said crank pins.

In witness whereof, I hereunto subscribe my name this 9th day of March, 19l2.

- CYRUS A. MCCAIN \Vitnesses T.H. FERGUSON, H. G. lVEBsrnR.

It is hereby certified that in Letters Patent 'NO. 1,063,273, granted June 3, 1913, upon the application of Cyrus A. McCain, of Oak Park, Illinois, for an improvement in Reciprocating Mechanisnis for Printing-Presses and the Like, errors appear inthe printed specification requiring correction as follows: Page 2, line 89, for the word 5operatively read oppositely, page 3, line 127, for the pronoun 1" read we; page 4, line 58, for the word rates read rate, and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Ofiioe.

Signed and sealed this 24th day of J une, 'A. D., 1913.

[SEAL-1 C. C. BILLINGS,

Acting Cmnmiuioner of Patents.

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