US1923492A - Printing machine - Google Patents

Description

Aug. 22, 1933. J, KRELL PRINTING MACHINE Filed Jan. 15, 1952 4 Sheets-Sheet l W @am In R u. iN INM WINE,

om 5 QN vvv Aug. 22, 1933.

J. KRELL PRINTING MACHINE f Filed Jan. 15, 1952 4 Sheets-Sheet 2 by mw y@ Aug. 22, 1933. J KRELL' 1,923,492

PRINTING MACHINE Filed Jan. 13, 1932 4 sheets-'sheet s Affys.

J. KRELI. 1,923,492

PRINTING MACHINE Aug. 22, 1933.

Filed Jan. 13, 1932 4 Sheets-Sheet 4 Patented Aug. 22, i933 PRINTING MACHINE Joseph Krell, Berlin-Zehlendorf, Germany Application January 13, 1932, Serial No. 586,391, and in Germany January 2,3, 1931 4 Claims.

My invention relates to printing machines, and more particularly to address-printing machines having a rockin.g printing arm, a holder for thepaper on which the addresses are printed, and 5 means for feeding the paper holder longitudinally and transversely under the control of the printing arm and in time with its `rocking movements. Y

A machine of this general type is described in (zo-pending application for patent of the United States, Ser. No. 387,530, led Aug. 21, 1929, for Printing machine.

In this machine a: very complicated mechanism is provided for operating the feeding means from the printing arm and it is an object of my invention to simplify this mechanism.

To this end I provide a rocking lever which is operatively connected to the printing arm and to the feeding means, in combination with means for rocking the lever only during the ascent of the printing arm. n

Inmachines of the type referred to, it has already been proposed to provide two sectors for v effecting the longitudinal and transverse feed of the paper, as described in my said co-pending application. The two sectors are arranged side by side in a frame and are rocked in time with the movements of the printing arm through the mechanism of the machine. As mentioned, the 3 mechanism for operating the two sectors is Very complicated in this machine and is much simplifled according to my pesent invention, The rocking lever may be mounted on a horizontal shaft in the frame of the machine, and equipped with a slot which is concentric to the axis about which the printing arm rocks. Rocking Inovement is imparted to the rocking lever by mechanism operated upon each ascent of the printing arm, the lever being rocked alternately in opposite directions. Upon the descent of the printing arm the lever is not operated but maintains altogether or substantially the position it assumed when the printing arm started for its ascent.

1n a preferred embodiment oi my invention, I arrange a shaft on the printing arm, as described in my said copending application, which is rotated through 180 degs. per ascent of the printing arm, in the same direction, and a crank pin or equivalent means arranged eccentrically Awith respect to the axis oi the shaft and engaging in the slot of the rocking lever.

It is another object of my invention to pro-v throwing out the printing arm if it is desired not to print a certain printing plate, or plates.

To this end, in combination with the printing arm on which the platens are arranged and which is mountedto rock in the frame oi the machine, 1 provide a clutching member which mounted to rock on the printing arm and is continuously operated from the driving shaft of the machine,

a clutch for connecting the member to the printing arm, and means for throwing out the clutch in the elevated position of the printing arm when it is desired to skip a given plate. Normally a control magnet holds its armature attracted and the armature, in turnholds the clutch in active position. When a plate is to he skipped, the magnet is de-energized and releases its armature and the clutch. is thrownout.

VSkipping or selecting means of this type is simple and reliable and permits a simple design for the means by which the feed of the paper is controlled.

In the accompanying 'drawings an address printing machine embodying my invention is illustrated by Way of example.

In the drawings:

Fig. 1 is a partly sectional elevation showing a portion of the machine, with the printing arm elevated,

Fig. 2 shows a detail of the skipping or selecting 35 means, y

Fig. 3 is a plan View of Fig. 1, with the printing arm lowered,

Fig. 3a is a section on the line IlIIa-IIIa in Fig. 3,

Fig. 4 shows the printing varm lowered for printing a printing plate for the first time,

Fig. 5 shows the arm elevated for the second print from the plate after the paper has been fed 95 transversely,

Fig. 6 is an elevation of the elevated printing yarm ready for skipping,

Fig. '7 shows the skipping means after the driving shaft has turned through about 180 degs. 100 from the position in Fig. 6,

Fig. 8 is an elevation oi the lowered printing arm, viewed from the right 'in Fig. 1, and

Fig. 9 is a section on the line IX--IX in Fig. 4.

Referring now to the drawings, and Iirst to Figs. 1 and 3, l is the table of the machine, 2 is the printing arm, and 3 is a pin about which the arm is mounted to rock. The frontend of the arm has a fork 2, with a shaft 13, and its rear and has a fork 2'", with a Shan 4 on which the 11,0

able means such as the pulley 89, Fig. 9, and 62 is a connecting rod extending from the crank of the shaft 63 to a pin 62" at the'lower end of the clutching member 61, as best seen in Fig. 7. 85, Fig. 2, is the control magnet of the skipping means, 86 is its armature, and 90 is a hook for holding the armature in attracted position. 84 is a spring, Fig. 1, which is attached to the tail 2I and tends to elevate the arm 2.

53 is a frame in which a lower slide 48 is mounted to reciprocate, as described in my said co-pending application, 49 is the upper slide which is mounted to reciprocate transversely on the lower slide 48, 125 is the paper-holding rod which is attached to the upper slide 49, 127 is a paper holder at the rear end of rod. 125, 131

' is a clamping cylinder for the paper 126, and 128 is a handle for applying the cylinder to the paper.

The platens 6 and 7 at the turret head 5 are arranged at an angle of 90 degs. to each other. The turret head is mounted to rotate freely about the shaft 4 and at its outer end is equipped with a tubular shaft 5", Fig. 3, on which a notched disk 5' is secured outside the fork 2'. 9, is a bell crank on the outer end of shaft 4. The disk 5 is notched at 8, 22kand 23, and 8 is a pin at the end of bell-crank arm 9 which engages in-the notch 8 so that the turret head is entrained if the bell- crank 9, 10 is rocked by means which will be described. The notches 22 rand 23 are pitched at 90 degs. in conformity with theposition of the printing platens 6 and 7, and 24 is a spring catch, on a pivot 25, for securing the turret head 5 in two positions at 90 degs. to each other. 26 is a sector-shaped cam, the radius of which is somewhat larger than that of disk 5. `The cam is positivelyconnected to the bell crank 9, 10 and as often as the bell crank rotates, engages below the end of catch 24 to release disk 5 and to permit the turret head to turn into the next position in which it is locked by the catch re-engaging the notch 22 or 23, as the case may be.

Mounted on the outer end of shaft 13 is a crank 12 which is connected to the arm 10 by a rod l1. 14 is a disk onthe shaft 13 which has two notches 15 and 16 in diametrally opposite positions, 19 is a pinion which is free to rotate Aon shaft 13, 18 is an arm on the pinion, and 17 is a pawl at the outer end of arm 18 which engages alternately in one of the notches 15, 1F, Fig. 3a.

. Mcshing with the pinion 19 is a rack 20 which is held by a roller 21 at the fork 2, Fig. 3, and at its lower end is pivoted to bell-crank arm 27. 32 is a bracket on the lower face of table 1 and 31 is a link which connects the arm 28 to the bracket. It will be understood that While the arm 28 is held in a definite position by the link 31, its pivot 29 rocks with the tail 2 of the printing arm 2.

Mounted to rotate in the bracket 32 and a bracket 32', Fig. 8, is the shaft 33 of an upwardly extending rocking lever 34 which at its upper end has a slotted eye 35 curved concentrically to the axis about which arm 2 rocks. 37 is a disk on the end of shaft 13 which projects beyond the outer arm of fork 2, 36 is a crank pin on the disk which engages in slotted eye 35; 38, 39 are lugs arranged diametrally opposite on the disk 37, and is a checkprojectingupwards from table 1 for arresting the lugs in the two final positions of the disk 37.

41 is a lever on the inner end of shaft 33 to which the rear ends of two links are connected. The front end of link 42 is pivoted to an adjustable block 42 at the arm 45 of a sector 45, and the front end of link 43 is pivoted to a similar block 100 on an arm of a sector 100 at the rear of sector 45, bothsectors being mounted on the same shaft 44. The sector 45 meshes with a rack 46 mounted to slide in frame 53. The rack is connected to the lower slide 48 by a pawl, as described in my said co-pending application, so that the lower slide 48 is fed only in the direction of the arrow 47 if the sector 45 rotates in the 4direction of arrow 47', Fig. 5, while for the opposite rotation of the sector 45 only the rack 46 is entrained but not the slide 48.

The sector 100 cooperates with a rack 111 which has teeth 110 at both ends at right angles to the teeth with which the sector 100 meshes.

As described in my said co-pending application, the feeding means are subdivided as follows:

1. The lower or principal slide 48 actuated by sector 45;

2. The upper slide 49 which is mounted to be displaced transversely on slide 48; y

3. A sleeve 50 in the upper slide 49, with a bolt 5l and a set screw for holding the rod 125.

54 is a straight-edge which is fulcrumed on the lower slide 48 at 55and is engaged by anges at the lower end of sleve 50 so that the position of the slide 49 on the slide 48 is determined by the inclinationof straight-edge 54 and the position of the sleeve 50 on the straight-edge. The free end of the straight-edge is guided in a slot 56 in which it may be fixed in any desired position by suitable means such as a thumb nut, not shown. Meshing with the teeth at the ends of rack-111 are pinions 112 on Vertical shafts 113, each with a crank 114 which is slotted for the reception -of an adjustable crank pin 115 on each pinion. The cranks are pivotally connected to blocks117 in arod 118 which is slotted for their reception at 117 and equipped'with rollers 119 at its ends which bear on the cross bars D and E of frame 53. indicated by arrow 57. 120 is a pin connecting the rod 118 to a double-armed lever 121 which is fulcrumed on the frame 53 at one end and at its other end is connected to a bracket 124 on the upper slidey 49 by a link 123. f

When the rod 118 is reciprocated the upper slide 49 is reciprocated transversely to the direction in which the lower slide 48 is fed, and at the same is displaced longitudinally by its engagement with straight-edge 54. This may be desirable under certain conditions, for instance, 1

if the two prints from the same plate of which individual lines are printed, are juxtaposed on the paper 126. If the straight-edge is placed in fiuenced during its reciprocation.

The clutch by which the clutching member 61 and the tail 2 are connected, is a pin 64, Fig. 9, which is adapted to enter a sleeve 64 in the member 61 under the pressure of a spring 65, and 66 is a notch, with a cam face 67, at the free end of kparallel to the sides of slide 48 it will not be inpin 64. 68 is a clutch-operatng lever which is free to turn on pin 3 and has a cam 69 for cooperation with the cam face 67. 72 is a shaft in the frame of the machine, 83 is a spring wound about the shaft and tending to rotate it clockwise, 71 is an arm on the shaft, and 79 is a link by which the arm is connected to the operating lever 68. 81 is a cam plate which secured on the driving shaft 63 and rotates in the direction of arrow 88, Figs. 1 and as the shaft rotates, 79, 79' is a double-arined lever which is free to turn on shaft 80 is a rolle?.` on the arm 79, and 82 is a spring tending 'to hold the roller engaged with cam 81. 73 is a ixed arm. on the shaft 72, and 77 is a pin at the arm 73 which engages in asl-ot 78 in the arm 75 is a par-.fl at the lower end of arm 73, and 75 is a spring tending to move the pawl into engagement with step at the lower end of arm 79. 76 is a fixed check .ior throwing out the pawl 74 in certain positions@ The opera on ci my machine is as follows:

d l, 'be a pr.A ting plate which has fed to the printing station below the platens 6, 7 on means, not shown, and from which the v first print `is to be made by platen 6 on the paper 126 when the 2 The control magnet 86 which engages holds the clutch operating lever 63 by a lug, as best seen in 2.

is driving shaft 63 rotates it moves the printing arm 2 into the printing position, Fig. 4, whereupon the raised portion of cani plate 81 bears on the roller 80 of arm 79 and moves the double- armed lever 79, 79 into the position Fig. 2. Spring 83 tends to rotate the shaft 72 inthe direction of arrow 91 so that the arms 71 and 73 follow the rocking movement of donbleearmed lever 79, 79 in the san direction and arm 71 operates the lever 68 'through link 79. However, the lever 68 is held the lug on the armature 86 and the arms 71, 73 cannot follow the double` armed lever 79, 79', while the pin 77 on arm 73 moves in the slot 78. The clutch 64 is not iniiuenced by its lever 68.

as the printing arm 2 descends the rack 26 rises under the action of bell crank 27, 28 and the pinion 19 on the shaft 13 rotates in a direction opposite to that indicated by the arrow 93, Fig. 3a. The pawl 17 at the arm 18 which rotates with the pinion, leaves the notch 16 disk 14 and engages the notch at the in nt tho printing arm arrives in its lowermost position. The shaft 13 is not rotated and the disk 37 on the outer end of the shaft remains in the position l, so that the rocking lever 34 on the shaft 33 is not influenced while the printing 2 moves from the position 1 into the position Fig. 4. Nor are the sectors and 169 operated. A certain amount of movement of pin 36 on disk 37 may occur as the slotted eye 35 of the rocking lever 34 is curved about the about which the printing arm rocks, and the pin some play in the slot.

When the printing arm is in its lowermost po- Fig. t e plate 87 is printed on the paper The con .iued rotation of shaft 63 causes the link 62 to pull the member 61 to the rear, elevating the printing Rack 20 descends, pinion 19 rotates the direction of arrow 93, 3ft, and the shaft 13 is turned through 180 degs. by the disk 14. The arm l2 on the inner end of shaft 13 turns the turret head 5 from the position 4 into the position Fig. 5 and moves the platen 7 into printing position. Cam 26 pushes catch 24 out of notch 22 and pin 8 on the 'turret head 5 by any sui'dablel head is not turned on its shaft 4.

bell-crank arm 9 turns the turret head through 99 dogs. by the notch 8.

The rotation oi'shaft 13 in the direction 93 Vcauses the disk 37, with its pin 36, to rotate from the position Fig. 4 into the position 5, and the rocking lever 34 is moved to the left, rotating shaft 33 in the direction 94, Fig. .Arm 41 on shaft 33 now operates the sectors 42 and 43 in a direction opposite to that indicated by the a1'- row 47', Fig. 5, to move the rack 46 and the lower slide 48 toward the printing arm 2. At the same time, the sector 100 causes the upper slide 49 to move in the direction of arrow 57, Fig. 3, so that the paper .1.26 is displaced and the plate 87 is printed at the side of the iirst impression.

Overthrowing of shaft 13 upon the ascent of printing arm 2 is prevented by the lugs 38, 39 on disk 37 and the check 40.

The position of clutch-operating lever 68 is not altered when the printing arm 2 descends from the position in Fig-5.

When a given plate 87 has been printed twice and the next plate is fed to the printing station, the magnet is excitedunless this plate is to be skipped, the rack 28 rotates the shaft 13 in the direction 93 as described and the turret head 5 is turned so as to present the platen 6, Fig. 1 whileat the same time the sectors 45 and are rocked from the position in Fig. 5 into the position in Fig. 1 in the direction 47'. causes the lower slide 48 to move in the direction 47, Fig. 1, for the pitch of two lines, so that upon the subsequent descent of the printing arm another line of the list is printed on the paper 126 while the sector 190 by rocking in the direction 47 causes the upper slide 49 with the sleeve 50 to return into the position Fig. 3 so that the iirst print of the new plate 87 is below the nrst print of the preceding plate.

1i it is desired to skip a plate the control magnet 85 is not excited when the printing arm ascends, or rie-energized when the printing arm is in its elevated position, Aand the armature 86 is not attracted. The consequence is that when the raised portion of cam plate 81 strikes the roller 80 on the arm 79` and rocks the double--r armed lever 79, 79 into the position'liig. 6, spring 83 rocks shaft 72 in the direction 91 with the arms 71 and 78 so that the clutch-operating lever 68 is rocked in direction 96, Fig. 2, by the link 70 and with its cam 69 engages in the notch 66 of clutch 64, retracting the clutch in direction 97 and breaking the connection of member 61 and tail 2. Spring 84 holds the arm in its elevated position while the member 61 rocks idly as the shaft 63 rotates, Fig. 7. As the printing arm remains in elevated position the pinion 19 on shaft 13 is not influenced and in turn doesV not influence the feeding means, and the turret When the member 61 is again in the position Fig. 6, and the clutch 64 re-enters the bush 64 in the arm 61.` The clutch-operating lever 68 does not interfere with the re-connection of the tail 2' andthe member 61 as at the moment when the member 6l is in its nal position, Fig. 6, the double- armed lever 79, 79 is engaged by the lower portion of cam plate 81 so that the link 70 moves the clutchoperating lever 68 against arrow 96, Fig. 2.

1i the subsequent plate 87 is also to be skipped, the member 61 is disconnected from tail 2 when the shaft 68 rotates, by retracting the clutch 64. If the subsequent plate 87 is to be printed the connection between 61 and 2 is maintained by the excited control magnet 85, as described.

This

lili) When the clutch-operating lever 68 is rotated in the direction 96, Fig. 2, as shown in Fig; 6, the pawl 74 leaves the check 76 so that the lever 79, 79 and the arm '73 are rigidly connected during, and for the purpose of, unclutching, which is desirable.V When the arm '73 returns into the position Fig. 7 the check '76 causes the pawl 74' to move out of engagement with lever arm 79.

I claim:

1. A printing machine comprising a rocking printing arm, means for actuating said arm, a paper holder, means for feeding said paper holder longitudinally and transversely, a feed-controlling member on said printing arm, means for operating said member at each ascent of said printing arm, a rocking lever'operatively connected to saideeding means, and a connection between said member and said rocking lever which is adapted to rock said lever only during the ascent oi said printing arm.

2. A printing machine comprising a rocking printing arm, means for actuating said arm, a paper holder, means for feeding said paper holder longitudinally and transversely, a shaft on said printing arm, means for rotating said shaft at each ascent of said printing arm, a rocking lever operatively connected to said feeding means, and a connection between said shaft and said lever which is adapted to rock said lever only during the ascent of said printing arm.

3. A printing machine comprising a rocking printing arm, means for actuating said arm, la paper holder, means for feeding said paper holder longitudinally and transversely, a shaft on said printing arm, a bell crank lever fulcrumed on said printing arm, means for holding one arm of said bell-crank lever against rocking about its fulcrum, means connected to the other arm for rotating said shaft at each ascent of said printing arm, a rocking lever operatively connected to said feeding means, and a connection between said shaft and said lever which is adapted to rock said lever only during the ascent of said printing arm.

f 4. A printing machine comprising a rocking printing arm, means for actuating said arm, a paper holder, means for feeding said paper holder longitudinally and transversely, a shaft on said printing arm, means for rotating said shaft at each ascent of said printing arm, a rocking lever operatively connected to said feeding means, said lever having a slot curved concentrically to the axis about which said printing arm rocks, and a crank pin on a disk of said shaft engaging in the slot.

JOSEPH KRELL.

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