US1857315A - Method of proofing type slugs - Google Patents

Description

y 3. H. J. MEGLEY 1,

METHOD OF PROOFING TYPE SLUGS "Filed Jan. 29, 1930 ffl Z tjjffvzwnzm Jami/I'M Patented May 10, 1932 UNITED STATES PATENT OFFICE HARLEY J'. MEGLEY, OF CHICAGO, ILLINOIS METHOD OF PROOFING TYPE SLUGS This invention relates to a method of proofing or taking a trial impression of a printing slug which is of a height less than type high or of a composite deposit of such printing slugs.

As well known in the art, the printing slugs which are used on fiat bed presses without base plates or the like are known as type high slugs. WVhere I use the expression 1 herein less than type high, I refer to printing slugs which are of a height less than the height of the slugs above referred to and particularly to slugs adapted for use on multigraph or other rotary or drum type printing machines or which are combined with fiat base plates or carriers when used on fiat bed presses.

In my prior Patents No. 1,461,927 of July 17, 1923, and No. 1,601,221 of September 28,

1926, I have provided for forming integral lines of type or type slugs of a height less than type high and for forming retention means in the slugs for engagement with the chases, undercut rails or other retention means in or on the cylinder, drum, flat base plate or other type carrier.

The present invention relates in its more specific aspects to an improved method of proofing or taking a trial impression of type slugs which are in use less than type high without arranging the less than type high slugs upon a printing carrier and without engaging retention means in the slugs with retention means on the carrier. If such slugs are placed upon the carrier with retention means in the slugs in engagement with retention means on the carrier in order to proof or take a trial impression of the type, considerable time and labor is involved which the present invention reduces. This placing of such type slugs on a carrier provided with retention means is not only tedious and involves considerable time and labor but requires carriers with chases or other retention means for proofing the type and stillv further interferes with the entire type handling process.

It is the obj eliminate these difficulties, more specifically it is the object of this invention to reduce the ect of the present invention to time and labor involved in proofing type of this sort and it is a still more specific object to provide for proofing such type independently of retention means thereon.

The proofing method of the present invention not only enables proofing less than type high slugs without setting them up in a chased carrier but it enables proofing less than type high slugs in type high galleys or proof 7 presses now in common use.

One particular manner of carrying out the method of the present invention is illustrated in the accompanying drawings, it being understood that the particular detailed disclosure herein is illustrative and for the purpose of enabling others to practice the method of this invention upon expiration of any rights granted to this applicant hereon.

In the drawings 2- Figure 1 is a fragmentary perspective view of an existing galley and proof press with which the present invention may be prac ticed;

Figure 2 is a vertical section taken longitudinally through the galley tray on the line 22 of Figure 1 andshowing the step of supporting the head portionof the slug at substantially type high position upon the base portion; I

Figure 8 shows diagrammatically the step of taking the impression;

Figure 4 shows the step of severing or removing the base portion from the head portion of the slug; and

Figure 5 is a fragmentary perspective view partially in section and showing the less than type high slugs in position upon a printingcarrier.

Referring to the drawings, the galley or proof press shown in Figure 1 comprises a stand 5 carrying a bed 6 upon which the galley tray 7 is adapted to be placed with a composite deposit of type slugs 8 therein as shown. The press illustrated is an existing proof press old and well known in the art and includes a pair of inking plates 9 and 10 supported by the bed 6, one beyond each end of the tray 7. The inking roller 11 is movable longitudinally over the upper printing faces 12 of the type slugs 8for the therewith purpose of inking said faces and at each end of its travel is movable over the inking plates 9 and 10 for the purpose of inking the roller 11 therefrom. The press roll 13 is movable longitudinally over the upper printing faces 12 of'the type slugs 8 for the pur 'pose of taking. the trial impression, the roller necks 22. The height h ofthe printinghead of the slug is less than type high as that expression isused herein and understood in theart, and the height h, i. e., the combined height of the printing head 20 and base or gate21 is substantially type high.

The outer face 12 of the printing head 20 is the printingface and it carries the char-- acters, symbols, rules or other printing means of which the letters 24 in Figure 5 are illustrative. The printing heads 20 have longitudinal grooves, niches or other retention'means 25'for engagement with the cooperating retention means 26 on the printing carrier 27-which is illustrative ofthe printing carrier of a multigraph or other-rotary or drum type printing'machine, as well as of a chased fiat base plate or carrier for using the less than type high slugs en a flat bedpress.

The printinghead' 20 and connected gate or base'21" may be moulded as an integral unit and where retention means 25 and weakened necks 22*are provided, these may be former l in the moulding of the slug in themanner set out inmy priorpatents alreadyreferred' According to my'present invention, instead;

of separating the less than type high printing head from the base of the slug beforetakin I c a 1 Lb a proof or trial impression which would ordinarily require engaging the slugs in the chased drum of the. multigraph or rotary printing machine or engagement with. a

moving the gates or bases 21.

65: type high heads20 up" to and" support same chased flat base plate or carrier in order to' take a trial impression, I block the less than type high slugs 20 up to and'support saineat substantially'type high position without plae-j ing the slugs onthe actual printingcarrier and take the trial impression of the slugs thus supported. This is accomplished byarranging the slugs in the galley tray 7 in the" manner shown in Figure 2 and before re- ;The gates or bases 21 block the less with the printing faces 12 at substantially type high position. A group of these integral line slugs maybe clamped firmly in the tray 7 in the desired assembled order by a clamp screw 30, a slug clamping piece being indicated at 32 between the inner end of the screw and the adjacent type. slug, or one end-ofthe galley may have anopenend with a weight placed against the deposit of slugs for holding them in place.

The" galley or galley tray 7 with the compositeldepositof. slugs therein is then placed on the proof press as shown in Figure 1 and with the. galley inplace the inking roller 11 is moved, for example, from position over theinkingplate 10' as shownin full lines in Figure 3' over the upperprinting faces 12 of the type slugs and into position in the cutaway'portion 15of the press roll 13 and over the other inking plate 9. The upper printing faces 12 beingthus inked, the sheet to be printed is placed upon the upper printing faces 12 asindicatedat 35 in Figure 3 and the press'roll 13 is then moved over thesheet 35 with an accompanying turning movement?v in its journals-14c, the movement of: the roller 13 over the sheet 35 pressing this sheet against theinked upper printing faces 12 and making theproof' or trial impression of the type on the sheet 35.- Obviously in case oferror all that is necessary is to remove the desired slug or slugs and replace same with correct slugs. Thisis all done without engaging retentionmeans inthe less'than ty-pe high slugswith retention means in a carrier and without disengaging same in order to permit correction of the galley.

At thesame-time the combined height of the'printing head 20 and connected base 21 being substantiallytype high and the'proof ing or taking of the'trial" impression being done before removing the gate from the printing head, I am enabled to proof less thanltype' high-slugs in type high galleys. or

proof: presses which are'now in common use andwithout requiringchased carriers or the 1 like; V

Thereafter the gate or base 21. is severed or-removed from the printing head 20 in any suitable or preferred manner. and the. less than typehighprinting slug 2O isthen ready for use upon thechased printingfcarrier by placing the. slugs inthe'desire'd' order thereon withthe'retention means 25 of the slugs in engagement withtheretention means 26 on the carrier27. 1

The particular. manner of severing or removing the gate or'base21 from the lessthan type high head 20 isaimmaterial' and may vary widely withinthe scopeof the present" invention.

In Figure-4 I have illustrated more or less 'diagrammatically the removal ofthese gates orbases 21 in the manner of my 'cop'endingapplication Serial No. 118,17 6, o

filed Jiinefiz l, I926} Accordingtto'theinvem tion of that application the slug with its printing head and connected base is moved in a given path and the gate 21 is bodily severed in the movement of the slug in that path as by means of a rotating knocker 40 which is timed to engage the base 21 in the movement of the slug and the engagement of this knocker 40 with the base of the slug severs the base 21 from the printing 20 longitudinally along the weakened connecting neck 22 as indicated in dotted lines in Figure 4:.

In the illustrated embodiment of the application last referred to the movement of the slug is through guides 42 which are grooved at 43 and have retention means 4:4: for engagement with the retention means 25 in the slug, this engagement supporting the slug by suspension in its movement adjacent the knock-off or gate severing device 40.

The bases or gates 21 of the slugs are preferably of substantially the same thickness as the heads 20 or a trifle thicker to prevent buckling or tilting and to assure full printing engagement of the type faces with the paper.

I claim 1 The method of taking a trial impression of a plurality of printing slugs which comprises forming said slugs of substantially type high height, with printing faces and with weakened portions within their height, grouping the slugs side by side and holding same together below the weakened portions whereby multilation of the slugs above the weakened portions by direct contact with the holding means is avoided and at the same time mutilation of the slugs above the weakened portions by pressure of the slugs upon each other is prevented, then taking a trial impression of the printing faces of the grouped slugs with said slugs in substantially type high position and thereafter reducing the height of said slugs to less than type high height by severing the slugs along said weakened portions.

2. The method of taking a trial impression or proof of a plurality of printing slugs each comprising a head portion of a height less than type high and provided with a printing face and with a base portion connected with the head portion by a relatively fragile connecting neck, which comprises grouping the slugs side by side and supporting the head portions at substantially type high position upon said base portions, holding the slugs together below the head portions and below the fragile connecting necks, taking a trial impression of the printing faces of said head portions thus supported and held, and thereafter and before actual use of said printing slugs severing said head portions from said base portions along said connecting necks.

3. The method of taking a trial impression of a plurality of printing slugs each comprising a head portion of a height less than type high and provided with a printing face and with a base portion connected with the head portion by a relatively fragile connecting neck, said head portion having retention means for engagement with cooperating retention means in a printing carrier which comprises grouping the slugs side by side and supporting the head portions at substantially type high position upon said base portions, holding the slugs together below the head portions and below the retention means thereon and also below the fragile connecting necks, taking a trial impression of the printing faces of said head portions thus supported and held and thereafter and before actual use of said printing slugs severing said head portions from said base portions 7 along said connecting necks.

4. The method of taking a trial impression of a plurality of printing slugs each comprising a head portion of a height less than type high and provided with a printing face and with a base portion connected with the head portion by a relatively fragile connecting neck, said head portions having grooves forming flanges along their opposite sides.

for engagement with cooperating retention means in a printing carrier which comprises grouping the slugs side by side and supporting the head portions at substantially type high position upon said base portions, clamping the slugs together with pressure exerted below the head portions and below the grooves and flanges on the head portions as well below the fragile connecting necks, taking a trial impression of the printing faces of said head portions thus supported and clamped together and thereafter and before actual use of said printing slugs severing said head portions from said base portions along said connecting necks.

5. In combination, a galley tray, a plurality of slugs grouped side by side and supported on their lower edges on the bottom of said tray, said slugs each comprising a head portion of a height less than type high, a printing face on the top of each head portion, grooves forming retention flanges along the opposite sides of the head portions, a base portion integrally connected with each head portion by means of a fragile connecting neck and supporting the head portions with the printing faces at type high position, and

'means associated with said galley tray and

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