US1714895A - Make-ready device - Google Patents

Description

May 28, 1929.. A. STOLLER; 1,714,895

MAKE READY DEVICE Filed June 2, 12'7 2 Sheets-Sheet 1' INVENTOR. fl erzaflmw 5mm AT ORNEYS.

May 28, 1929. STOLLER 1,714,895

MAKE READY DEVICE Filed June 2, 1927 2 Sheets-Sheet 2 .7 ,L INVENTOR.

L I r Wm Shaw ATTORNEYS.

Patented May 28, 1929.

ABRAHAM 's'ronnni or new YORK, N. Y.

MAKE-READY DEVICE.

Application filed June 1 2,

My invention relates to the printin art and particularly to a make ready and a quad device. 1

At the present time, a great deal of time spent by printers in shimming up the sheet or plate upon which the sheet to be printed rests, so that the type will. give an impression of substantially uniform blackness. After a proof is taken under present practice, the light parts are marked, and then by quite a tedious process sheets of paper, sometimes thick and sometimes thin, are placed on the bed beneath the light spots and then another impression taken until finally the proof shows up uniformly- This process often requires hours. 7

It is the principal object of the present invention to provide a bed or plate for sheets to be printed, with means to facilitate raising or lowering parts thereof with a view to dispensing with the tedious work of preparing the usual make ready. v

It is a more specific object to provide a bed or frame having a plurality of relatively small blocks, each preferably independently movable so that small areas may be raised without disturbing other areas of the bed.

It is another object to provide an improved means of accurately locating and remedying light or dark spots on the printing.

t is another object to provide an improved quad device. 1

In said drawings which show, for illustrative purposes only, a preferred form of the invention I Fig. l, is a partially diagrammatic view of a simple press illustrating features of the invention;

Fig. 2, is a plan view of a bed or a frame having movable surface areas illustrative of my invention;

F igz; 3, is a sectional view taken substantially in the plane of the line 3+3 of Fig. 4;

Fi 4 is an enlar ed fra mentar view of the underside of one corner shown in Fig. 2;

Fig. 5, is a fragmentary'view of the corner of a printed proof and a translucent member superposed thereon;

of the frame Fig. 6, is a fragmentary view Similar to Fig. 9 and illustrating an improved quad device;

Fig. 7, is an isometric view illustrating in detail one of the quad devices shown in Fig. 6. In said drawings, 5 indicates a frame or bed of a printing press and upon which the 1927. Serial No. 195,917.

sheet to be printed rests. In the form illus trated, the frame Sis adapted to rest on a foundation or bed plate'G, which is moved up to the type Tas is common with simple presses of this type.

The invention relates particularly to means for preparing the surface upon which the sheets to be printed rest. In the illustrative form shown, I provide a relatively great number of blocks 7, preferably of metal, which may substantially fill the frame 5. These blocks, asshown more particularly in Fig. 2,

are arranged in staggered relation for a purpose to be described. The blocks are arranged for independent ad ustments up and down, so that one or more blocks may be raised at substantially any part of the surface of the frame. In the particular illustration, each block 7 is provided with a threaded bore 8 for receiving a screw 9, whichis rotatable in a passage 10 in the base 11 of the frame. Suitable abutments 12 B serve to position the screw longitudinally relatively to the base 11 so that upon turning any particular screw 9, the block 7- associated therewith may be raised or lowered relatively to the base 11 and the adjacent blocks. Obviously, other means may be employed forefl'ecting the raising or lowering. i I

The sheet to be printed isplaced on the frame 5, and, as is usual, a suitable backing of cardboard or the like is positioned between the paper and the blocks forming the bed. Now, when a proof is struck off, theproof is examined, and often there are light spots indicating that at these spots the bed is relatively too low to properly engage the type. (l ne or more blocks in the light aream'ay then be raised until, when the next proof is struck off, a uniformly printed sheet will be produced. i In order to facilitate locating the particular block or blocks to be raised, 1 have devised means preferably a transparent or translucent sheet. This sheet 13, as shown more par-' ticularly in Fig. 5, may be of celluloid or the like, the surface of whiclrmay be roughened slightly so as to take a pencil or chalk mark. l Vhen a proof is struck off, the sheet 13 may be laid over the proof and the light spots may be viewed through the, celluloid or other translucent sheet. The light area may then be marked off on the sheet 13 and the sheet then removed and applied to the rear side of the frame 5. The sheet 13 is provided with a plurality of apertures 1l-14=, which register 1 formly printedsheet when the-next proof: sheet is struck olf. By the means above described, it will be a relatively simple matter to vary the surface of-the bed which receives the sheet so that. uniformly printed sheets with .the adjusting screws 9. It will be clear. that the sheet 13. may be. aligned with the c0r-: ners of the frame 5, or with othersuitable.

the sheet 13 will then be turned so as to raise one ormore of the blocks 7 to the desired 621-- tent so as to provide for a substantiallynnimay be produced. In place of a transparent sheet, a sheet of steel or the like provided withperforations may be employed. The irregularities in the printed proof could thus be seen through the perforations. Such. a sheet I consider the equivalent of the transparent or i independently -mov1ng said blocks for the translucent sheet abovedescribed.

The blocks 7-7 are preferably arranged in "staggered relation so that smallerareas may be raised when desired. If the oints between adjacent blocks are matched and the. light: spots happen to be located: substantially over the corners of four blocks,.all.four blocks would have to be raised. Inthe staggered arrangement, an areaenclosed by only :three blocks may be raised thus providing. for a raised area of only three-quarters the size'of that which it would be necessary toraise if the joints all matched.

My invention is also susceptible of use in connection with improved quads, thus doing away wlth the relatively unsatisfactory quad devices now in use. I As illustrated particularly in Figs. 6 and 7, I may raise oneor more of the blocks 7 and abut the 'sheet-to-be printed against these blocks, the blocks themselves in I that case serving as quads. It sometimeshappens that the fixed positions of the blocks 7 int. theframe would not be in exactly the-desired;

positions for the quads. In that-case, Imay attach a device, which is adjustable,-to vary: the positioning of-the sheet. In the form.

shown, a spring clip device which may be a substantially U-sbaped frame having legs 15 and a flanged overend-16fits three sides of the blook 7. i A return bent spring end '17 may be formed. on the leg 15 and-beadjustable as by means of ascrew 18so as to move 'the samesufiiciently to accurately position the paper shown in dot and dash lines in Fig. 6. Each spring end 17 may have a little lip or tongue '19 struck out from the upper surface so as to form an undercut space for holding the paper to be printed. I -vmentof .theposition' of the sheet on the bed Accurate adjustmay thus be made.

: Iehaveashownethe improved-frame and blocks in;the formof a-flat bed but theinvention is susceptible of embodiment in beds of curved: or other shape. Wi hile-itheiinvention has :been described in some detail, Ido not wish tobe strictly limited to .the form shown nor to the particular mechanism employed .forearrying out the de- I claim: In aelnakereadyydevice; a plurality'of ad -acentblocks forming a-bed and means for purpose described.

2:111 a make readyidevice, a'plurality of locks arranged in staggered: relation forming a bed, and means for:independentlymoving said blocks for theipurpose described.

3; In a- .make ready'idevice, i asupporting frame, a plurality of blocks supported-therein forming a. bed, and means accessible from the rear of said frame for moving. saidblocksinr dependently.

1 4. In a deviceof the-character described, a bed to support a sheetito be printed, a:pluralityofblocks, and means for raising thesame abovethe surface2ofssaid .bed for forming positioningv means for a sheet.

5; .In adeviceofthe character described, a bed to supporta sheet to be printed, a plurality of. spacedqapart blocks,.means for raising the same.aboveithesurface of thebed,'and adjustable abutment means to be seeuredto said 6. In a device of the character described, a

,=.bed :having. independently .movable. parts therein .for .:raising= and .lowering surface areas, means for moving said parts, and a translucent member folwsaid bed to receive markings to indicateirregularities on a 'printed proof.

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