US1282957A - Vibrating distributing-roller for printing-presses. - Google Patents

Description

1. H. SCHUSSLER. VIBRATING DISTRIBUTING ROLLER FOB PRINTING PRESSES.

APPLICATION FILED AUG-I3. I9I7- 1,282,957.. Patented Oct. 29,1918.

2 SHEETS-SHEET I.

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J. H. SCHUSSLER.

VIBRATING DISTRIBUTING ROLLER FOR PRINTING PRESSES.

APPLICATION FILED AUG. I3. 1917.

1,28%,957. Patented Oct. 29, 1918.

2 SHEETS-SHEET 2.

W566?! Inc/e 71%? 70.17503 c aaan era JOHN H. SCHU S SLER, OF CHICAGO, ILLINOIS.

VIBRA'IIN'G DISTRIBUTING-ROLLEB FOR PRINTING-PRESSES.

Specification of Letters Patent.

Patented Get. 29, 19118.

Application filed August 13, 1917. Serial No. 185,888.

To all 2072 om it may concern Be it known that I, JOHN H. SCHUSSLER, a citizen of the United States, and resident of Chicago, in the county of Cook and'State of Illinois, have invented certain new and useful Improvements in Vibrating Distributing-Rollers for Printing-Presses, of which the following is a specification.

This invention relates in general toprinting presses and more particularly to improved means for distributing ink upon the inking rolls of a platen press.

In order that the inking rolls of printing presses may apply ink to the printing surface evenly and uniformly, it is desirable that means should be provided for distributing the ink smoothly over the rolls. By pro-- viding such ink-distributing means a higher grade of work may be done and greater speed attainedowing to the more uniform application of the ink to the printing surface.

' The main object of my invention is to imfor successful commercial operation.

Generally speaking, these and otherobjects are accomplished by providing in a printing press the combination of an inking roll, a distributing roll engaging the surface of said inking roll, and means for yieldably and adjustably holding said rolls in contact with each other, and novel means for re ciprocating the distributing roll with respect to the inking roll. V

The invention is illustrated on the accompanying sheets of drawings, in which:

"Figure 1 is a fragmentary side elevation of a platen printing press embodying my invention;

V Fig. 2 is a fragmentary front elevation of the same; 7

Fig. 3 is a fragmentary detail end elevation of the two inking rolls and distributing roll shown in accordancewith my invention and on a larger scale than shown in Fig. 1;

Figit is a fragmentary front elevation of the same;

Fig. 5 is a detail fragmentary side elevation of the single inking roll with the distributing roll held in engagement therewith in accordance with my invention and shown on a larger scale than shown in Fig. 1;

Fig. 6 is a fragmentary front elevation of the same; and

Fig. 7 is a sectional view taken in the plane of line 7-7 of Fig. 4.

The "arious novel features of my invention will be apparent from the following description and drawings and will be particularly pointed out in the appended claims.

By referring to Figs. 1 and 2 of the drawings, it will be noted that I have shown a platen printing press 10 including side frame members 11 and 12, at the upper end of which is supported a disk 13 having an ink supplying surface. A printing surface 14' is located below and in front of the disk 18. A pair of inking rolls 15 is arranged to move over the inking surface of the disk 13 and also over the printing surface 14, said inkingrolls 15 being engaged by one or more sections of a distributing roll 16. I have also shown another inking roll 17 which is adapted tomove over the inking surface of the disk 13 and over the printing surface 14. This inking roll 17 is engaged by another distributing roll 18.

Hook members 19, each having oppositely arranged hooks 20 at opposite ends of the inking rolls 15, fit over the reduced end por tions of said rolls and yieldingly press said rolls into engagement with the disk 13 and printing surface 14 by the usual rod and spring mechanism 21, the rod being connected to the hook member at a point 22. Similarly a hook member 23 passes around the reduced ends of the inking roll 17 for a similar purpose, the roll 17 being yieldingly held in contact with the inking and printing surfaces by the usual spring mechanism 24:. The carriage 25 is pivoted at 26in the usual manner.

The distributing roll may be in one section or be made up in two sections, as shown in Fig. 2. or if desired there may be more sections. Where there are two or more sec tions they are separated by a collar 27, which collar and also the sections are mounted over a shaft28, which is adapted to be reciprocated or vibrated axially or transversely of the machine and along the length of the inking rolls 15. The distributing roll 16 is secured to'the shaft 28. As shown in Fig. 2 of the drawings, I have shown two sections. It will be noted, that immediately to the left of the left-hand section there is provided a collar 29 which is keyed to the shaft 28. The left-hand section of the ink-distributing roll engages the collar 29, the intermediate collar 27 being tightly pressed between the left a nd righthand sections, and to the right of the righthand section of the distributing roll there is provided a collar 30 which is secured to the shaft by a set-screw. In this manner the sections are maintained rigid with the shaft-28. 7

It will be noted that the left-hand end of the shaft 28 is provided witha threaded portion 31 which passes through and meshes with a cooperating internal threaded portion 32 (see Fig. 7) of a bushing 33. This bushing 33 is supported in a bracket ea which in turn is secured to the hook members 19 by set-screws 35. Between the sides 36 of the bracket 34: is secured a pin37 to which is pivoted a resilient member 38 havinga semi-circular portion 39 which embraces the bushing33 intermediate its side flanges 40, the free end of the resilient member or spring 38 being secured to the opposite end of the bracket 3% by a bolt 41 having an eye portion 42 which pivots on a pin 43 seoured to thebracket 34. It will be noted that the free end of the spring is doubled back on itself at 44 and is provided with a slot 45 to permitthe passage of a bolt 4]. This bolt is provided with a nut 46 by means of which the springmember 38 may be adjusted to press yieldingly the distributing roll 16 in engagementwith the inking rolls 15 to any desirable degree. By bending the spring back on itself as at 44, resilienc of the connection is increased.

It will be noted that lugs 47 are provided on the bracket 34 to prevent lateral move ment of the resilient member 38. The semicircular portion 39 of the resilient member 38 acts as a bearing for the bushing 33, and in order that the distributing roll may properly center or position itself with respect to the inkingrolls, I have provided the side members 36 of the bracket 3% with elongated slots 4:8 wherein the pin 37 may freely move back and forth to permit such centering action. The slot 45 of the free end of the spring member 38 also permits the spring to move in a manner topermit the distributing roll properly to center itself with re spect to theinking rolls. It will be noted that in view'of the fact that the member 38 is resilient, the'distributing roll will be pressed into continuous engagement with the inking rolls in spite of any irregularities there may be in the surfaces of the inking rolls and at the same time the screw 46 may be adjusted to press the distributing roll intoiengagement with the inking rolls to any desired degree. The nut a6 also acts be noted that the distributing roll 18 is held in engagementwith the single inking roll 17 by anarangement.similar to theone described in connection with the other figures of the drawings, the brackets 60 in this case lapping over the hooks 23 and being secured thereto by suitablescrews 151. In this case, as well as in the case of the arrangement disclosed in connection with the other figures of the drawings, the distributing roll may be released by loosening the nut 46 and swinging the bolt 41 beyond the free end of the spring or resilient member 38. It will be noted that the resilientmemher 38 in Figs. 5 and 6 is pivotallyniounted on a pin 52 carried by the bracket 60. It will be noted, however, that no slot is provided in the bracket for the pin 52 for-the reason that the distributing roll 18 does not have to center itself with'respect to two inking rolls. Otherwise the arrangement is substantially the same as disclosed in the other figures ofthe drawings; a

It is wellunderstood thatthe inking rolls are first moved over the 'inking surface of the disk 13 and then over the printing surface 14? and as a result of this movement the rolls are caused to rotate. The distributing roll is caused to rotate by its engagement with the inking rolls, andin view of the fact that the distributing roll is each case is secured to its shaft, which is'provided with a threaded portion 31, the distributing roll is caused to vibrate or reciprocate axially or longitudinally with respect to the inking rolls. Normally the distributing roll 16, and therefore its shaft 28, rotates independently of the threaded bushing 33. However, if the inking rolls and the cooperating distributing roll 16 are rotated beyonda predetermined amount the bushing will be caused to rotate with the distributing roll, the same being'permitted in view of the fact that the resilient member 38 engages the bushing with only suflicient force to normally fricti'onally hold the bushinggthat is to say, when the limits of rotation of the rolls has not beenreached the bushing 33 is held against rotation by the resilientmember 38, but when the distributing rollis ro tated beyond its normal limits thebushing 33 is permittedfto rotate with the'distributing roll.

It will be noted that the side flanges 40 of the bushing 33 are provided with cam por tions '53 and 54 which terminate in stops 55 and 56 respectively. It will also be noted that the outer end of the shaft 28 is provided with a. pin 57 which is adapted to cooperate with the stop member 55 to limit in 7 dependent movement of the distributing cooperate with the other stop 56 to limit in-" dependent movement of the distributing roll and its shaft 28 in an opposite direction. In other words, when the pin 57 passes into engagement with its corresponding stop 55 it causes the bushing 33 to rotate with the distributing roll in one direction, and when the other pin 58 passes into engagement with its corresponding stop 56 it causes the bushing 33to move in the opposite direction with the distributing roll, such movement being permitted due to the frictional engagement be tween the bushing 38 and the semi-circular portion of the spring or resilient member 88. In this manner the distributing roll is permitted freely to reciprocate or vibrate back and forth longitudinally with respect to the inking rolls, andif the inking rolls are run beyond certain predeterminedlimits in either direction the distributing roll maycontinue to rotate and thereby eliminate any disastrous results which otherwise might occur.

It is apparent that there may be various modifications of the precise arrangement herein particularly shown and described, and it is my intention to cover all such modifica tions which do not involve a departure from the spirit andscope of the invention as set forth in the following claims.

I claim:

1. In a printing press, the combination of an inking roll, a distributingroll engaging thesurface of said inking roll, and a resilient strip forming a portion of the roll journal support for yieldingly holding said rolls in engagement with each other, the ends of said strip being restrained while permitting slight bodily movement of said strip.

2. In a printing press, the combination of an inking roll, a distributing roll engaging the surface of said inking roll, a shaft to which said distributing roll is secured and having a threaded portion, a threaded bushing cooperating with the threaded portion of said shaft whereby the distributing roll is caused to move axially, and a resilient strip forming a support for said bushing whereby said distributing roll is yieldingly held in engagement with said inking roll.

3. In a printing press, the combination of an inking roll, a distributing roll engaging the surface of said inking roll, a. shaft to which said distributing roll is secured and having a threaded portion, a threaded bushing cooperatingwith the threaded portion of said shaftwhereby the distributing roll is caused to move axially, and a resilient strip overlying said bushing and forming a support therefor and associated with said bushing to hold the same frictionally, whereby the distributing roll may have an axial movement therein.

4:- In printing press, the combination of an inking roll, a distributing roll engaging the surface of said inking roll, a shaft to which said distributing roll is secured and having a threaded portion, a threaded bushing cooperating with the threaded portion of said shaft whereby the distrilniting roll is caused to move axially, a resilient strip forming a bearing support and associated with said bushing to hold the same frictionally whereby the distributing roll may have an axial movement therein, and means whereby said bushing may rotate with said distributing roll under certain conditions.

5. In a printing press, the combination of an inking roll, a distributing roll, and a resilient strip forming a bearing and adapted for holdin said distributing roll in engagement wit1 said inking roll, said strip being mounted with its ends restrained while permitting bodily movement thereof.

6. In a printing press, the combination of an inking roll, a distributing roll, a resilient strip forming a bearing for holding said distributing roll in engagement with said inking roll, and means for adjusting said resilient strip for varying the degree of pressure with which said rolls engage each other.

7. In a printing press, the combination of an inking roll, a distributing roll associated therewith, a shaft upon which said distributing roll is mounted, abracket, and a member pivotally mounted in said bracket and serving as one portion of a bearing for removably and yieldingly supporting said shaft.

8. In a printing press, the combination of an inking roll, a distributing roll, a shaft upon which said distributing roll is mounted, a bracket, and a resilient member pivotally mounted in said bracket for supporting said distributing roll and yieldingly pressing said distributing roll into engagement with said inking roll.

9. In a printing press, the combination of an inking roll, a distributing roll, a shaft upon which said distributing roll is mounted, a bracket, a resilient member pivotally mounted in said bracket for yieldingly pressing said distributing roll into engage ment with said inking roll, and means associated with said bracket and resilient mem her for varying the pressure with which said rolls engage each other.

10. In a printing press, the combination of an inking roll, a distributing roll, a shaft upon which said distributing roll is mounted, a supporting member havinga portion for supporting said distributing roll, a member pivotally connected to said supporting member and removably suppijn'tin'g said distributing roll in engagement with said inking roll, said member having a slotted portion, and a securing member movably mounted in said slotted portion to secure said member in a given position.

11. In a printing press,'tho oonibiinition of an inking roll, a distributing roll engaging the surface of said inking roll, a sha-t t upon which said distributing roll is mounted, a supporting member having an elongated slot therein, a pin mounted for movement/in said slot, and a member pivotally mounted on said pin and supporting said shaft, whereby the distributing roll is supported and is permitted to take a given position with respect to said inking, roll.

12. In a printing press, the combination of an inking roll, a distributing roll engaging the same and having a threaded shaft portion, and a threaded bushing associated with the threaded shaft portion whereby the distributing roll may be given an axial movement, said bushing and shaft having cooperating portions whereby said bushing may rotate with said distributing 1e11, said cooperating portions including a cam, and a flexllblestrip forming a support for the threaded bushing.

13. In a printing press, the combination oi an inking roll. a distributing;- roll engaging the sameand having a threat led shaft portion, and a threaded bushing associated in opposite directions with said distributing roll, and a flexible strip forming a support for the threaded bushing.

Signed at Chicago, Illinois, this 6th day of August, A. D. 1917. r 7

JOHN njsonussmca.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, 17,0.

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