US1593371A

US1593371A - Inking attachment for use with type duplicating and like printing machines

Info

Publication number: US1593371A
Application number: US40202A
Authority: US
Inventors: Storey William Henry
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-07-01
Filing date: 1925-06-29
Publication date: 1926-07-20
Anticipated expiration: 1943-07-20

Description

Jul 20, 1926. 1,593,371

W. H. STOREY INKING ATTACHMENT FOR USE WITH TYPE DUPLICATING AND LIKE PRINTING MACHINES Filed June 29. 1925 2 Sheets-Sheet 1 INVENTOR mum: /A Stor July 20, 1926. 1,593,371

W. H. STOREY INKING ATTACHMENT FOR USE WITH TYPE DUPLICATING AND LIKE PRINTING MACHINES Filed June 29. 1925 2 Sheets-Sheet 2 W/ r///////////// I I #2,

INVENTOR- M'lliam /l 51 3 Patented July 2%, 192%.

WILLIAM EENRY STOREY, "03F SO'UTHENZD G'NSEA, ENGLAND.

IN KIN-G- I ATTACHMENT FOR USE WET-H T re normronrme nun mm PRINTING- MAEI-IINES.

Application filed JiT-unie Z29, 19.25, :Seritl No. 40,202,":sn'd fin-Great .Britain July )1, 1924.

This invention relates to improvements in inking attachments for use with type indupliceting or like printingmachines.

In inking attachment-s hitherto employed, the attachment has. according to one type of machine, comprised e. pair 'aofside in which was carried a. large cyl-inde1' driven through an intermediate :gear Joy means :of (EL gear secured to the printing cylinder. This cylinder, Which received :ink "from the duetor, had ELfllXGCl on either side cams which operated the waver or reciprocating rollers. These rollers, together with gel-atihe rollers, which made contact with the said :cylinder were freely carried :in arms which were pivoted from rat-stay bar 'WllilCllCOIllZlQQllEd the side frames. Also freely harried in these arms were a :set of steel. rollers, :snperimposed, so as to make contactwithxthegelw tine rollers. In contact with the cylinder, inked by the hunter, and :also themain printing cylinder lthns supplyingink to 113116 :trpe

surfaces, was .gelzrtine roller carried :in-en adjustable (manner in the, above mentifmed arms. Above the :set of rollers :and. also making contact with the type, faces, and

rdriventhereby, waszazgelatine roller, not

contact with any of the other y roller-s, car-- ried :in a bracket to which the casin or cover partly enclosing the attachment, attached; Y

. The inking attachment just 'deseribed ;as :Well as other existing attachments have :a disadvantage in that %the :means for :regu- :lating the amount of pressure of the vrollers with the type ieces has been .somewhat inac.cessible,rand tnnther, rno indies tion of the :amount :or direction (of :adjnstinent has been provided; ;Enrthermore, Wit'll :some types of machines, the edjnstment of the inking rollers is upsetieaoh :time they are removed, and therefore "they require resetting-on replacement.

-Now kthe present .inwenltion :whas rfior its object to improve upon the mounting f \the rollers which supply ink to i'theit-ype faces in such e manner that the mechanism tor adjusting movements :of the rollers relative .5110 the printing cylinder :is readily accessible, and moreover :to provide :an indication of the amount :and'adirection of adjustment of the said rollers, and further \to permit of the rollers-\beingqremoned from :the attach- :ment, tor cleaning :01 other purposes band to the replaced "without the adjustment having in any wyny heen altered.

The invention comprises inkingrrollers mounted freely -upon eccentric shafts the high portions of which ween he moved to 1 trom the .ferm on the :oylind r through the me of hand operated nuts en which ere indicated the necesszvry direnfiions {of move,- ment, the amount of H'IIOVGIILGIlt :heing airpsparent by the sense of :feel

The invention will now he described snore particularly, reference hoinglhad to the/21C rollers. v

.Fig. 5-,is az-niend' viewv-of Fig.

Fig. 16 is ,a detail View showing one o;f ithei millednuts with its groove or V.,

:lligfl is n ('deitoil View cit-one o l fihelcfigp pieces :Eor enelosing "the end of the milled nut.

tioIIs iot the side themes of the inking nttachment whichis of the :torm described and illustrated in the specification for Fig. 4 shows the spindle or to e {of the On the dnawingsQQismd 22 represent per- Letters .P:aitent, :Seriel No. 39, 211, lfiiledslune 1n the said specification, which has tor its (object the separation of the Narious :inking rollers rfrom each other fans well as firom vstlieftype surfaces, imention is made that the -;.type wform inkinggelatine rellers sl end :are *withdzrmu'n from zconta c't with (the storm by ithe movement :et a rack :34: in its lfixed "slide [35 which causes rotation (of theggears .36iands3fi which rotaite theiecclentric spindles upon which the mollers 41 and :42. are .Tmounted, to their thigh positions, so that while the surfaces of the storm inking gelatine rollers ere out of contact with'the type surfaees thepeers38 and=39 which drive-these rollers viroin the Emainlprintin'g -'cylin,der gears in vmeans o'f'dogs .40 meystill zhelett in-ines with the teetheoif the meinigear.

According to the present inwention the -methodlot mounting the gelatine type term inking rollers as well as the means for imparting adjustments thereto are identical for each roller although the sizes of the rollers may vary as shewn.

Referring more particularly to Fig. 3 it will be seen that the gelatine covered roller 41 is mounted on the eccentric portion of the spindle by means of

bushes

51 and 51 the bush 51 being slotted to receive the free end of the dog 10 secured to the gear 38 which is driven by the main printing cylinder gear (not shewn). The said gear 38 is free to turn on a bearing 52 which passes through the side frame 22 of the inking attachment the bearing being threaded externally and secured against movement by the nut 53. The said bearing 52 is bored out for the reception of a nut 54 which in turn is bored out and slotted for the reception of the coarse threads 55 formed on one end of the double ended screw 55. The said nut is moreover slotted as at 56 at its closed end to receive flats 57 formed at one extremity of the spindle 50, the said spindle being supported at this end by the shoulder portion 58 which is housed in the bearing 52. Also housed freely in the bearing 52 is the boss 59 of the gear 36 the said gear being engaged by the rack 34 freely mounted in the slide 35 which is secured to the side frame 22 by means of the bolt and nut 60. Formed with the gear 36 is a cap piece 61 which is fashioned with a series of inturned claws or catches 61 for the purpose of enclosing and retaining the shouldered end of a milled nut 62. The milled nut, cap piece, gear and boss are each formed with a central bore through which passes the double ended screw 55 and the screw is formed with a fine pitch thread 55 for engagement by the milled nut 62.

The screw 55 is fashioned with a keyway 63, into which fits a key 64: which passes through a hole bored in the shoulder of the cap piece 61. The cap piece is moreover bored out to receive a spring plunger which is in the form of a ball 65 and spring 66. The inner face of the milled nut 62 is formed with a V-shape groove 67 (Fig. 6.) extending across the width thereof into which the ball 65 is forced by the spring 66 at each half turn of the milled nut. 'Or, more than two grooves may be formed on the shoulder por tion of the milled nut. The shoulder portion 58 at the other end of the eccentric spindle 50 has secured thereto, or formed integral therewith a milled head portion 68 a portion of which forms a journal in the side frame 22 of the inking attachment. Pivotally housed in a bore 69 running longitudinally with the nut is a member or pawl 70 one end of which 69 is forced by a spring such as 71 to project through a hole or slot formed in the journal end of the milled nut, whilst the other or free end 69 of the pawl protrudes from the bore of the nut. The end 69 of the pawl 70 abuts against a boss on the side frame 22 of the attachment in such a man ner that it prevents withdrawal of the ec centric spindle 50 from its supports until the free end 69 is depressed.

From the foregoing description of the various parts of the mechanism it is to be noted that the milled nuts 62 are free to be revolved by the operator but have no end movements. Again the double ended screw 55 does not revolve relative to the gear 38 but moves endwise when the nut 62 is turned, this endwise movement causing a rotary movement to the nut 54 which imparts this movement to the eccentric spindle 50 since the end 57 thereof is journalled in the slot 56. The milled nut 62 is provided on its face with such words as On Oil and arrows, the arrangement being such that when more ink is required to be applied to the type faces which are represented by the dotted curve 72 (Fig. 2) one or other, or both of the nuts 62 is or are turned in a counter-clockwise direction, i. e. in the direction of the arrow denoting On this action causing the roller 11 or rollers ll and 42 to be moved into closer contact with the type faces. Moreover, each partial turn of the milled nuts 62 is made apparent to the operator because the nuts become stiff to turn directly the ball 65 under the action of the spring 66 slips into the V-shape grooves 67. Again, when adjustments are made they are maintained so that when the

rollers

41 and 42 are removed from the machine for any purpose replacement does not in any way interfere with the setting of the rollers because the milled nuts 62 are prevented from turning by the friction of the balls 65 in the grooves 67 and by reason of the fact that the flats 57 formed on each spindle have to enter the slots formed in the coarse pitch nuts 54; and they can only do so with eccentrics in one position relative to the slots because the flats 57 on the spindle 50 are not equidistant from the centre of the journals 58 of each eccentric shaft 50.

To remove the

rollers

41 and 42 from the attachment spring 71 is compressed by pressing upon the end 69 of pawl 70 and the end 69 moves out of contact with the side frame 22. The

rollers

41 and 42 are held while the eccentric spindle 50 of each is pulled out of the side frame 22 and each roller is then disengaged from the dog 40.

Having thus described my invention what I desire to secure by Letters Patent of the United States is as follows 1. In inking attachments for use with type duplicating and like printing machines,

the combination with inking rollers, eccentric spindles supporting the same, and means for operating said rollers for effecting the printing operation; of double-ended screws to which end movements are afiorded, a fine pitch thread on one end of each screw and a coarse pitch thread at the other end, milled nuts fitting on each of said screws and capable of being rotated but having no end movements, and nuts fitting on the coarse pitch threaded ends capable'of rotating on the said screws but having no end movements, the said latter nuts forming housings for the ends of the eccentric spindles supporting said inking rollers.

2. In inking attachments for use with type duplicating and like printing machines, the combination with a cylinder, a type form carried thereby, and adjustable inking rollers associated with said form; of means for indicating the amount of adjustments imparted to said rollers relative to said form, said means including double-ended screws, hand-operated nuts fitted on said screws and having grooves therein, cap pieces within which said nuts are fitted, and spring operated plungers fitted between said nuts and cap pieces and including balls and springs, said balls being engageable in said grooves.

3. In inking attachments for use with type duplicating and like printing machines, the

combination with a frame, a cylinder, a type form carried thereby, and adjustable inking rollers associated with said form; of means for permitting removal and replacement of said rollers without disturbing adjustments previously made between each roller and the type form, said means including doubleended screws, nuts rotatable on said screws and having slots therein, and spindles supported in said frame and having eccentric portions for supporting said rollers, and flattened surfaces on one end of each spindle capable of registering with the slots in said nuts.

4. In inking attachments for use with type duplicating and like printing machines, the combination with a frame, inking rollers supported therein, and shafts for said inking rollers; of means permitting removal and replacement of said rollers from said frame, said means including hand-operated nuts fitted to the ends of the inking roller shafts, and a spring pressed pawl contained within each nut, one end of said pawl passing out from the nut and abutting against said frame and the other end protruding from said nut.

In testimony whereof, I have affixed In signature.

WILLIAM HENRY STOREY.