US1995426A - Slur eliminator for printing presses - Google Patents

Description

March 26, 1935. H. HONIGMANN 1,995,426

SLUR ELIMINATOR FOR PRINTING PRESSES Filed May 5, 1932 INVENTOR.

ATTORNEYS Patented Mar. 26, 1935 I 11,995,426"

UNITED STATES PATENT oFFIcE SLUR ELIMINATOR FOR. PRINTING PRESSES Hans Honigm'ann, Cleveland, hio,,assignor to i'iThe'Chandle'r & Price Company, Cleveland,

' '0hi0, acorporation of Ohio Application May 5,1932, Serial No. 609,456

' 12 Claims. (01.101-250) This invention relates, as indicated, to'printis the top of the main frame of the printing ing presses, but has reference more specifically press, on which the bed 2 that carries the chase to a device which is particularly adapted for use or type form 3 is mounted for reciprocal movein a printing press of the bed and cylinder type ment by pinion 4. The pinion 4 is secured to a V 5' for the purpose of eliminating or preventing the shaft 5, which is suitably journalled in the main 5 slurring with ink of the sheet which is being frame of the press. printed by the last line of type in the chase or The bed 2 is provided at one side with an uptype form.- r l wardly projecting rack 6, which is in mesh with a In the use of bed and cylinder typeprinting gear 7 fixed on the end of the shaft 8, on which presses, such, for example, asdisclosed in Patent the cylinder 9 is mounted, so that reciprocal 10 No. 1,774,272, granted to meAugust 26, 1930, it movement of the bed of the press results in has been observed that when relatively stifi oscillatory movement of the cylinder. 7 sheets, such as cardboard, are being printed, the The cylinder 9 is a hollow drum with a smooth trailing end of such sheets does not cling to the exterior surface save for recesses 10 in which tympan on the cylinder, but tends tostraighten are received the clamping devices 11 that serve 15 out, with the result that such trailing end of to secure the tymp 12 in taut Condition 0n he the sheet drags across the last line of type in the sheet carrying portion of the cylinder. The rechase and is slurred by ink therefrom. Cesses 10 also serve to receive gripper fingers 13,

The invention has as its object the provision the outer ends of which project Ov the adjaof a device which may be quickly and easily inen edge of h sheet rryin p i n f he sorted in the type form or chase,and which shall cylind r to grip her o a sh et f pap r when be effective to prevent the slurring in the aforep pe y P a d eo g said manner of the. sheet which is being printed. os d Wit in a f ame 14 on thebed 2 of Another object of the invention is to provide the pr ss is t as or typ f m 15. in which 7 a device of the character described, which shall the rows of type 6 are locked y a f Su t- 25 be inoperative at all times -except during the able lock-up bars and wedges. Positioned in the printing of'the last line or lines of type. To the type form 15 etw e c a of t s o p accomplishment of the foregoing and related bars 17 and 18 is the slur eliminating device of ends, said invention, then, consists of the means the present invention. 1 l hereinafter fully described and particularly The slur eliminator comprises a stationary pointed out in the claims. holder bar l9,'in the ends of which are recesses The annexed drawing and the following de- 20, within which levers-21 are mounted for pivscription set forth in detail certain mechanism otal movement about pins 22 in the holder bar. embodying the invention, such disclosed means The levers 21 are provided with arms 23, which constituting, however, but oneof various mechanextend substantially at right angles to the levers ical forms in which the principle of the invenand are disposed over the sides of the chase 15,-

tion may be used. l and with toe portions 24, which underlie the In said annexed drawing: 7 1 heads of screws 25. Screws 25 extend through Fig. 1 is a fragmentary sectional view through recesses 6 n the bar 19 and are Secured 1 the cylinder and a portion of the bed of a printsheet lifting bar 27, which is disposed directly 40 ing press, showing the sheet receiving position of above the bar 19. The bar 27 is normally main-1 the cylinder, Fig. 2 is a plan view of the chase tained in its operative positiomshown in 'Figs l or type form; Fig. 3 is a fragmentary sectional and 4, by means of coil springs 28, which are disview, showing the-manner in which the trailing posed within recesses 29 in the bar 19 and abut end of the sheet is raised to prevent the slurring the heads of the screws 25. In this position, the 45 thereof by the last line of type; Fig. 4 is a fragupper surface of the arms 23 of the levers 21 is mentary longitudinal cross-sectional view through slightly above the face of the type in the chase 15. the slur eliminator, with the sheet lifting bar A sheet of paper, designated S in Fig. 3 is thereof in inoperative position; Fig. 5 is a transmoved downwardly on inclined feed table 30 by verse cross-sectional view through the slur elimmeans of sets of endless tapes 31 and 32 to a posiinator, taken on a plane substantially indicated tion in which its forward end may be attached by the line 5-5 of Fig. 4; and Fig. 6 is a view to cylinder 9 by gripper fingers 13. The bed 2 of similar to Fig. 4, but sho-wingthe sheet lifting bar the press is then moved to the left, as viewed in in operative position. Fig. 1, and the cylinder 9 is simultaneously ro- Referring more particularly to the drawing, 1 tated in a clockwise direction, as indicated. The 55 sheet S is wrapped around the cylinder, as the latter rotates, and at the same time is pressed in contact with the type in the chase 15.

If the sheet S is of relatively stiff paper, such as cardboard, its trailing free end, as shown in Fig. 3 does not cling to the tympan 12, but remains substantially straight, with the result that the sheet is likely to be slurred by the dragging of the sheet across the last line 'of type.

Such slurring is avoided in the following manner: I

As the trailing end of the sheet approaches the last line of type, the arms 23 of the levers 21 are depressed by the tympan 12 of the cylinder, thereby lifting the bar 27 ,to its operative position,

shown in Figs. 3 and 6, wherein it engages the trailing end of the sheet and maintains it in contact with the tympan, so as tofpreventthe'drag ging of the sheet across the type. The arms 23 are of sufiicient length to maintain the trailing end of the sheet in engagement with the tympan until the last line of type has been printedand the possibility of the sheet dragging across the,

last line of type is no longer present. I

After the bar 2'7 has passed the position shown in Fig. 3, it resumes its normalinoperative posi tion, so that when the type is subsequently supplied with ink from suitable inking rolls. (not.

shown), the upper surface of the bar will not be inked by such rolls.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the,

" ated by the cylinder to move the bar to a posi tion in which its upper surface is substantially flush with the face of the type. I y

,2. The combination with a printing couple comprising a reciprocable bed for carrying the form and a cylinder for carrying the sheet to be printed; of a type form, type set within said form, a lock-up bar within said, form, and adja: cent the last line, of type, a vertically movable bar adjacent saidlock-up bar, and means'adapt-, ed when suitably actuated to move, said bar up.-

ward to a position in which its upper surface is substantially flush with the face of the type. I

, 3. The combination with aprinting couple comprising a reciprocable bed for carrying the form and a cylinder for carrying the sheet to be printed; of a type form, type set said form, a vertically movable bar disposed within Said form with its upper surface normally disposed below the type face level, and meansfor'moving said bar to a position in which its upper surface is substantially flush with thetype face level.

4. The combination with a printing couple comprising a reciprocable bed for carrying the ,form and a cylinder for carrying the sheet to be printed; ofa type form,'type set within said form, a vertically movable bar disposed within said form adjacent the last line of type and with its surface normally'dis'posed below the type face level, 'andmeansmovable by the cylinder to move the bar to a position wherein its upper surface is substantially flush with the type face level.

'lf e omb nat on ith a o orm c ntaining set-up type, of anon-printing slur eliminating bar within said form having its upper surface normally disposed beneath the level ofthe type ade, and n for a s n s d ba to a. p sit inwhich said surface is substantially flush with said type face. v I

7. The combination with a type form containing tpty e. of a non r t s slu e im natin bar With n ai f r sp n ea ormal y biasin said bar to a position in which its upper surface is'below'the type face level, and means for overcoming the action of said springlmeans to raise said barto a position wherein its upper surface is substantially flush with the type face level.

8. The combination with a type form containing set-up type, ofa non-printing slur eliminating bar within said form having its upper surface normally disposed beneath the level of the type face, and levers for raisingsaid bar to a position in which said surface is substantially flush with said yne face. H

9, The combination with a type form containing set-up type, of a stationary bar within said form, a movable non-printing slur eliminating bar mounted on said stationary bar, and means on a second non-printing slur eliminating bar mov-.

able with respect to said first bar, and levers adapted to mov the second bar. away from the firstbarnp a, I

11. In a device of the character described, a bar, a second'non-iprinting slur eliminating bar movable with respect to said first bar, levers for moving the second bar away from the first bar, n sprin meansopp s ne uoh m vem n In a device of the character described, a bar, asecond non-printing slur, eliminating bar movable with respect to said first bar, levers pivotally mounted on said first bar and operable to move the second bar away from the first bar, and springs opposing the movement of said levers.

. HANS HONIGMANN.

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