Bed-motion for cylinder printing-machines.

(Application filed Dec. 7, 1895.)

Sheets—Sheet I.

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THE NORRIS PETERS CO.. PHOTO-LITHO., WASHINGTON. O. C.

No. 688,689. Patented Dec. IO, 1901

G. F. READ.

BED MOTION FOR CYLINDER PRINTING MACHINES.

(Application filed Dec. 7, 1896.) (No Model.) 7 Sheets—Sheet 2.

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<img file="US688689A_D0003.tif" />

THE NORRIS PETERS CO.. PHOTO-LITHO.. WASHINGTON. 0. C)

No. 688,689. Patented Dec. IO, 1901.

G. F. READ. BED MOTION FOR CYLINDER PRINTING MACHINES.

(Application filed Dec. 7, 1895.) (No Model.) 7 Sheets—Sheet 3.

<img file="US688689A_D0004.tif" />

THE NORRIS PETERS CO.. PHOTO-UTHO.. WASHINGTON, D. C.

No. 688,689. Patented Dec. IO, 1901.

G. F. READ.

BED MOTION FOR CYLINDER PRINTING MACHINES.

(Application filed Dec. 7, 1895.) (No Model.) 7 Sheets—Sheet 4.

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<img file="US688689A_D0006.tif" />

THE NORRIS PETERS CO.. PHOTO-LITHO.. WASHINGTON. O. C.

No. 688,689.

G. F. BEAD. '°' ^l9°'· (No Model.)

BED MOTION FOR CYLINDER PRINTING MACHINES.

(Application filed Dec. 7, 1895.)

Sheets—Sheet 5.

<img file="US688689A_D0007.tif" />

<img file="US688689A_D0008.tif" />

<img file="US688689A_D0009.tif" />

THE NORRIS PETERS CO.. PHOTO-UTHO.. WASHINGTON, D. C.

No. 688,689. Patented Dec. IO, 1901.

G. F. READ.

BED MOTION FOR CYLINDER PRINTING MACHINES.

(Application filed Dec. 7, 1895.) (No Model.) ₇ Sheets—Sheet 6.

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<img file="US688689A_D0011.tif" />

<img file="US688689A_D0012.tif" />

<img file="US688689A_D0013.tif" />

THE NORRIS PETERS CO . PHOTO-LITHO.. WASHINGTON. D. C

No. 688,689. Patented Dec. IO, 1901.

G. F. READ.

BED MOTION FOR CYLINDER PRINTING MACHINES.

(Application filed Dec. 7, 1805.) (No Model.) 7 Sheets—Sheet 7.

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THE NORRIS PETERS CO-. PHOTO-UTHO., WASHINGTON. D. ¢.

United States Patent Office.

« DIRECT AND name of r. ho Jand company business UNDER THE FIRMbed-motion for cylinder printing-machines.

specification _{forming pari of Letters Patent Wo> 688;6891 dated December 10},_19O1Application filed December 7, 1895, Serial Ho, 571,328. (Ho model.)

To all whom it may concern.· zen ofihAⁿT°T^W?f^{Geokge f}· Read, a citieonnfv Af w^{DlteC Stat}_a^es>residingatBrooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Bed-Motions for Cylinder Printino·Machines. funy described and represented Γη uv!n^f?i°^Wln-^gSpeS^{lfieation and the} accompaio ThT₈h^rt^W1?-^gS’ ^fo,^rminS ^a P^art θί the same.

of _npJ.^aiJiy.^entl.^&lt;?^nr? ^atestoanimPiOved means P^10pe^1]1ng the type-bed of a bed-and-cylnderpressin its reciprocatory movement and strnkI®^{rS1Dg ltS nWtiOn at the end of eaeh}bbioKe.

The invention consists in a novel means for □^eX^g >t^m0Venr^{nt Of a} reciprocating itTtravAi ·¹⁶ “^^{de the} greater extent of παΛαΪ ^{1 in}.^either direction, so that it. may not only reciprocate in cooperation with an 20 impression-cylinder revolving at a hffih ve^bu.i’ ^said reversal be quickly accomplished without strain or jar and a high maxicffine b^f_p^SH>^eed °^f i^th® operation of 'the machine be thus made attainable, said means 25 consisting mainly in mechanisms whei eby a tal^fith αΛ¹¹⁸®^ ^t0 reciprocate in a horizontal path of travel with successively decreaswdh^n velocities and to coact ,_n an abutment on the bed to slow down 3 he bed from its high or normal velocity to a state of rest and start the same in the oppoXi;Tt°hX^a“^eie™^{,e u toth<!} -°™»¹tiAn«®nnU^{VentlOn fui}’ther includes combina35 tions and arrangements of parts, all of which are hereinafter fully explained and finally pointed out in the claims.

foiin^PAf^aH^tiCal .^embodiment in the preferred torin ot these improvementsis illustrated by 40 the accompanying drawings, in— ^y . Figure 1,.bya side elevation of a single-cvl^Printing-machineembodying the same; 1 i_to. 2, an enlarged end elevation thereof as

4ί n Fi?i^kih^{g ίη} direction of the arrow 2 1 ’ ^e ?^nd °^{f frame bein}s removed;

!1_&. 3, an enlarged central sectional plan Zf^eFii-^a 9^eU θ'^{1 th}? horizontal sectional line 3 nlir, ^Siv ’ ^S?^{me of} ,^tbe P^arts being shown in plan, F ig. 4, an enlarged side elevation taken fnVJn ⁴ ?^{f Fig}’ ^{3 as seen 10}°k- 50 7,¹⁴¹ the direction of the arrow 4 in Fio-s 2 ° ^aad. ^{3; F}f'V’ ^{an enlai}'£^ed opposite sidcTcie£ w^f *^he8ame> ^taken on the sectional line 5 of Fig. 3 as seen looking in the direction of the arrow 5 in Figs. 2 and 3. Figs. 6 _SS

J^{2, 1}P^nclu?^lve> ^are diagrammatic illustrations of various positions which the bed-moving mechanism assumes during its reciprocation and reversing movements. Fig·. 13 j8 νΛΤηηΐ ^Pr“ ^V’^e7’ i^{ln<1 Fig}- ^{14 a} P^artial ele‘- 6o nation, portions of which are in section, illustrating a modification of the invention, in which the main parts of the driving-bed are arranged in a horizontal plane * _qi J?® F^ri^ntinS;i^nachi?^{e here} illustrated con- 6c sists of the ordinary impression-cylinder C ” carried by a shaft 43 and provided with a lifting movement indicated by the rods 23 24 and toggle 2o in Fig. 1, and of the reciprocating bed B, traveling on roller frames and 70 ways W and provided with ordinary air cyltheend°nf t^Uh^fferS A’ ^usually θ“Ρ^ at the end of the machine to reduce the shock and wear of parts incidental to the checkin· °^{f I}‘;^oraent»¹ which the bed attains. * . Attached to the bottom of the type-bed B is a hanger H, upon which an upper rack 11 ^{aad a r}??^{k 12 aresee}uced, said hanger, fixedly depending from the bed, being guided belowin its horizontal movement in a groove 80 or race 50, fixed to the bed-plate. A bednnTa⁸ Γ^^{θθ1 tllrnin}g upon a stud 6, supported at the end of a rock-arm 5, that is iournaied upon the inner bearing of the drivingsiiatt 10 is revolved continuously bv the 8ς crank-wheel 4, which is fast to the maindriv ing-shaft 10, and the arm 5 is rocked up or down near the end of each stroke of the bed by a cam 20 on a counter-shaft 30 through a enfand” .^p'^voted.^{to the} rock-arm 5 at one 90 end and pivoted on the shaft 30 at the other ⁹end said arm 21 having a bowl 22 runnino· in the slot of the cam 20. This cam-motion* aided, if preferred, by counterweights 33 operates to move the driving-wheel D alter- 05 nately into gear with the top and bottom ⁹⁵lacks 11 κ , sothat it will produce the principal part of the reciprocating movement of

688,689 to slide or travel free horizontally therein and of a sufficient length to allow the bed to travel a distance substantially equal to one 7° circumference of the bed-driving wheel D. At each end of the slot S is provided a locking-latch L pivoted to the hanger H for locking the crank-pin journal-box 1, (which moves endwise in the slot S while the bed is being 75 propelled by the driving-wheel D,) when it reaches the end of said slot S or contacts with the abutment at the end of said slot, and just before said wheel leaves each rack; each of said latches being drawn constantly down- 80 ward or retained in its non-operative position by a spring 15, and being moved into its operative or locking position by inclined ways 14 carried by a fixed frame 29, over the faces ot which ways travels a rock-arm 7 that pro- 85 jects from the heel of each latch. In its, say, first revolution, as in Fig. 6, the bed-driving wheel D is engaged with the lower rack 12 and propels the bed outward or during its non-printing movement at a uniform or the 9c· normal velocity during the greater extent of its outward stroke of longitudinal travel. In its next half-revolution, as in Fig. 7, said wheel is clear of both racks and the ieversing movement of the bed takes place, and in 95 its next revolution, .as in Figs. 8 and 9, said wheel is engaged with the upper rack 11 and again propels the bed inward or during its printing movement at a uniform or the normal velocity during the greater extent of its 100 inward stroke of longitudinal travel, and in its next half-revolution, as in Fig. 11, said wheel is clear of both racks and the reversing movement of the bed at the opposite end of its stroke takes place, the wheel D thus 105 making three revolutions to a complete reciprocation of the bed. When the bed is approaching and reaches the extreme end of its movement in both directions, the strains are such that there may be a tendency to cause no the inner end of the driving-shaft 10, together with the crank-wheel 4, which that end carries, to yield somewhat. In order to offset this and hold these parts rigidly, segmental facial bearing-seats 32 34 are provided. These 115 are rigidly secured to the framework by the bracket X, (see Figs. 3,4, and 5,) so as to bear against one side of the crank-wheel 4 near its periphery, and thus sustain it and said shaft against any tendency to yield at that time 120 under the great strain the bed exerts upon them during the operation of arresting its movement. The arm 13, which carries the crank-piu 9, is also formed so as to run very close to or bear upon the outer face of the in- 125 ternal gear 8 for the same purpose—that is, providing it with a facial bearing against a fixed part at the time these great strains are exerted. Thus the parts which at the time of great strain might be thrown slightly out 130 of place have such injurious movement of them provide against.

Having in mind that the bed-wheel D, running at the uniform speed of the cylinder C, the type-bed at the high or normal speed of said wheel. . _n ,,

The driving-shaft 10 revolves in fixed bearings in the framework and carries a wheel 40 c outside of the frame, which wheel 40 communicates motion through an intermediate wheel 41 to the wheel 42 on the outer end of the impression-cylinder shaft 43 and by means of a train of gears 17 18 19 inside, the frame io drives the counter-shaft 30. Said drivingshaft 10 has secured to its inner end a crankwheel 4 of the same diameter as the beddriving wheel D, with, whicti it engages and which it drives, and consequently the crank15 wheel 4 and bed-driving wheel D have the same peripheral speed as the surface of the impression-cylinder C, and they preferably are of a size to make three revolutions for each complete movement or reciprocation of 20 the bed. . ,

The crank-wheel 4 carries a stud 3, [see Figs. 3 and 5,) the center of which is exactly midway between the center of the drivingshaft 10 and the pitch-line of said crank25 wheel 4, and upon this stud 3 revolves a pinion 2, whose pitch-circle diameter is one-halt that of the crank-wheel 4 and whose teeth engage with those of an internal annular rack or gear 8 of the same pitch.^_circle dianw* 30 ter as the crank-wheel 4 and which internal gear is fixed securely to the framework by a bracket X. The pinion 2 will thus by the dotation of the crank-wheel 4 be caused to revolve bodily about the axis of the crauk35 wheel and through its engagement with the internal gear 8 will be caused to rotate about its own axis in the opposite direction to that of its revolution about the axis of the crankwheel 4 or to that of the rotation of the 40 crank-wheel 4, and its pitch-circle diameter being half that of the internal gear 8 it will be caused to make two such rotations about its own axis to one rotation of the crank-wheel 4. Any point on the pitch-circle of the pinion 2 45 will therefore be caused to move back and ‘ forth in a straight line a distance equal to the pitch-circle diameter of the crank-wheel 4 and at a speed equal to and varying as that which would be derived from a crank having a radius co equal to the pitch-radiusof'the crank-wheel 4.

A crank-pin 9 is therefore secured to the side of the pinion 2, with its center coincident with a point in the pitch-circle and in such a position that it will move in a central honςc zontal line back and forth. The pinion 2 and crank-pin 9 thus form a bodily-revolving lever, which also rotates in the opposite direction of its bodily travel on an axis independent from that about which it revolves. Ihis 60 crank-pin is secured by meaus of an arm 13, that carries it, and which arm is fast to the side of the pinion 2, said crank-pin being provided with a square journal-box 1. .

The rack-hanger H is provided with a hori65 zontal rectangular bearing-slot S in line with the course of travel of the crank-pin 9, it bein’* of a width to receive and allow the box

688,689 operates when geared with the rack 11 to drive the bed B throughout the greater portion of its inward run or during the printing operation and when it is geared with the 5 rack 12 to drive the bed throughout thegreater portion of its outward run or during its return and that after each such run or each end of the greater portions of both of its strokes of reciprocation not only must said . io driving - wheel D, which causes them, be moved out of engagement with the rack it then engages, but that the reversing mechanism must be simultaneously engaged with the bed as said wheel D is detached, and that 15 thereafter the reversing mechanism must operate to gradually slow down the bed in one direction from its normal speed to a state of rest and then operate to start the bed in the opposite direction and accelerate it until the 20 normal speed of the machine is again attained, when the bed will be released from the reversing mechanism and will be again driven by the wheel D, then geared with its appropriate rack, the following description 25 °r the operation of the mechanisms will be readily understood.

The diagram Fig. 6 illustrates the position of parts after the bed has made its greater movement of travel outward, in which direc30 tion it runs to ink its forms at the high or normal speed of travel. Having reached this position of outward movement, it requires to be reversed, so that it may make its return or inward movement at said high or 35 normal speed. In this reversing movement it will be understood that the bed-driving wheel D must be simultaneously withdrawn from the rack 11, as the bed and the reversing mechanisms then come into coactive re4° ^and ^bis is accomplished as follows: lhebed having been rapidly moved through the greater part of its outward run at the normal speed of the press by the bed-driving wheel D, while engaged with the lower 45 yack 12, as in Fig. 6, during which time the impression-cylinder is in this instance raised out of printing position and during which Part of the outward movement the crank-pin J will have made an idle or non-operative 50 reciprocation, as is shown in Fig. 9, at the completion of ope revolution of the bed-driving wheel D this crank-pin 9 will be inovin°in the same direction as the type-bed is traw elmg and at the same velocity and will have 55 been overtaken by the left-hand abutment ^0Γ. ί¹¹® ^s!^ot S ^anc^ contact with it, as in said Fig. 6. Simultaneously with the attaining of this position of the crank-pin 9 or thereabout the latch L will be raised to lock the ⁶⁰ .x ^{1 to tlle said} abutment and the cam 20 will rock the bed-driving wheel D out of engagement with the rack 12, as in Fig. 7. The bed will then be controlled by said crank-pin J and box 1, and its further outward move65 ment will be gradually slowed down and cease, and the bed will be arrested orbrought to a state of rest by the constantly-diminish ing movement of said crank-pin 9, as the crank-wheel 4 makes that quarter-revolution which carries the crank-pin 9 in a horizontal 70 path of movement from its position in Fig. 6 to its position in Fig. 7, during which the outward movement of the bed will have been gradually slowed down from its normal or high speed to a state of rest, as in Fi°·. 7. 75 The next quarter-revolution of the crankwheel 4 will carry the crank-pin 9 in a horizontal path of movement from its position in it⁸ position in Fig. 8, during which it will gradually start and accelerate the bed 80 in the opposite direction or cause its inward movement to begin, during which movement the printing operation is performed,and when the crank-wheel has caused the crank-pin 9 to make its horizontal movement from its po- 8&lt; sition in Fig. 7 to that shown in Fig. 8 the bed will have again attained its normal speed or the velocity at which the surface of the impression - cylinder is then revolving, at which time the bed-driving wheel D will have 90 been rocked into engagement with the rack ® . ^cil L will be released, and the bed will, driven solely by the bed-driving wheel D, make the greater part of its inward movement during which the crank-pin 9 willmake 95 an idle or non-operative reciprocation, as shown m Fig. 9. At the end of this greater part of the return or printing movement of the bed the erank-pin 9 and box 1 will be overtaken by the opposite abutment or right- 100 hand end of the slot S, as in Fig. 10, and simultaneously therewith the opposite locking-latch L will be locked against said box 1 the bed-driving wheel D will be rocked out of engagement with the rack 11, and the bed ιος will again be wholly within the control of said crank-pin 9. During the next quarterrevolution of the crank-wheel 4 it will carry the crank-pin 9 in a horizontal path of movement from its position shown in Fig. 10 to no that which it has in Fig. 11, in making which constantly-diminishing movement it will have gradually slowed the bed down from its normal speed to a state of rest, as in Fig. 11, and during the next quarter - revolution of the nq cranx-wheel 4 it will have carried the crankpin 9 in a horizontal path of movement from its position shown in Fig. 11 to that which it has reached in Fig. 12, in making which travel it will have gradually started the bed 120 in the opposite or outward direction and accelerated it to the high or normal speed whereupon the bed-driving pinion D will be rocked into engagement with the rack 12 the locking-latch will be released, and the 125 bedwillagain make its outward movement or non-printing run, solely driven by the wheel D, during which the crank-pin 9 will make an idle reciprocation, as in Fig. 9, and the bed will be brought into the position shown in 130 rig. 6, when the described operations will be repeated.

., The bars between which the way or slot S is formed, though preferable, are not essen68S,689 tains the same letter of reference) is connected to the vertical shaft 10 by a beveled gear 28 through a beveled gear 38, fast on 70 the under face of the crank-wheel 4. In this modification the way S, and consequently the abutments at each end thereof, extends but a short distance below the bed B, while the latches L are hung at each end of the way S, 7 5 nearly over said abutments, the crank 7 of these latches riding on a rail 14, suitably provided with inclined surfaces to raise and lower these latches for locking the box 1 to the abutment. The rack-hangers in this in- 80 stance are both short, for the reason that they are required only to extend the same distance, as each rack is in the same horizontal plane or that of the bed-driving wheel D. The bed-driving wheel in this modification is 85 journaled upon a stud carried by a sliding frame 90, capable of transversely sliding in guides in the framework, its movements in opposite directions being accomplished by the cam 20, acting upon a lever 22, attached 90 to said frame, which cam is so shaped as to cause said bed-driving wheel to appropriately engage the racks 11 12. In such a horizontal arrangement it is feasible in modification thereof to omit the bed-wheel D and gear the 95 crank-wheel directly into moving racks that immediately underlie the bed, as is also shown in said application filed by me on the 20th day of March, Serial No. 584,045, in which application these modifications are claimed, 100 although they are broadly embraced by the claims herein.