US1593370A - Inking attachment for use with type duplicating or like printing machines - Google Patents

Description

July 20,1926; 1,593,370

' W. H. STOREY- minke ATTACHMEH'T FOR usi- WITH TYPE DUPLICA'I'ING on LIKE PRINTING MACHINES Filed June 24. 1925 5 Sheets-Sheet 1 "I -H I?! I A I 3/ l I II] I I 1 2 I '22 l I 20 y lg: \NVENTOR William 102/ flai /i July 20,1925. 1,593,370

w. H. STOREY INKING ATTACHMENT FOR USE WITH TYPE DUPLICATING OR LIKE PRINTING MACHINES Filed June 24, i925 3 Sheets-Sheet 2 July 20, 1526. 1,593,370

w. H. STOREY INKING ATTACHMENT FOR USE WITH TYPE DUPLICATING OR LIKE PRINTING MACHINES Filed June 24, 1925 s Sheets- Sheet Patented July 20, 1926.

UNITED STATES ,2 My 195mm rarest orrica.

WILLIAM HENRY STOREY, or SOUTHEND on'sna, ENGLAND. v

INKING- ATTACHMENT For. use WITH TYPE DUPLIGATING on LIKE 'ERINTING MACHINES.

'AppIication filed June 24, 1925, serial No. 39,211, and in Great Britain July 1, 1924.

This invention relates to improvements in inking attachments for use with type' duplieating or like printing machines.

In the following description of the invention the inking attachment will be described as being applied to that class of machine comprising a printing cylinder upon which is secured a flexible or solid form to which the type letters are applied. The cylinder is rotated by hand or by power, and the paper is automatically fed or hand fed between animpression roller and the cylinder for printing, provision b ing made whereby the impression roller can be moved towards or away from the cylinder,

According to one type of such machines, theprinting is effected from a broad ink d travelling ribbon which is wound on spools mounted in hearings in the printing cylinder, the said ribbon passing over the'type faces.

The printing eifect obtained by this machine is similar to that produced by a typewriting machine. I

With such machines an inking attachment has been employed so that at the wish of the operator either typewritten effects or printed matter may be produced on the same machine. I The inking attachment hitherto employed comprised a pair of side frames in which.

was carried a large cylinder driven through an intermediate gear on the printing cylinder. This cylinder, which received ink from the ductor, had aflixed on either side cams which operated the waver or reciprocating rollers. These rollers, together with gelatine rollers, which mad'e contactwith the said cylinder, were freely carried in arms which were pivoted from a stay ,bar which connected the side frames.

Also freely carried in these arms were a set of steel rollers, superimposed, so as to make contact with the gelatine' rollers. In order to prevent flattening of the gelatine rollers, thefr'ont end of the arms could be raised at, will by the operator so separating the rollers from each other and the 0 cylinder. In contact with the cylinder,

inked by the ductor and also the main print-. ing cylinder thus supplying ink to the type surfaces, was a gelatine roller carried in an adjustable manner in the above mentioned arms. Above the set of rollers, and

also making contact with the type faces, and driven thereby, was a gelatine roller not in contact with any of the other rollers,

carried in a bracket. to which the casing or cover partly enclosing the attachment was attached. Pivoted in the side frames was the ductor supporting a ductor roller, free to revolve, brought into contact! with the cylinder by a spring, and taken out of contact by a cam fixed to the ink di tr'ibuting cylinder. The arrangement was such that taking out of contact of the ductor roller with the large cylinder operated a ratchet mechanism which rotated the ductor roller an amount adjustable by the operator.

The inking attachment was secured to the main machine by means of screws, the weight being carried'by two legs formed by theside frames resting upon a bar fixed to the base or table. The gear connecting the printing cylinder with the ink distributing or large cylinder and imparting motion to the latter cylinder could be dis engaged and locked out of engagement at the will ofthe operator.

With the inking attachment just de scribed, as well asother known types of attachments certain disadvantages are met with.

In the first place there has been a tendency for the operator to leave all rollers in contact with each other and the type, when the machine is stopped, or the opera tion of printing is completed, or for other reasons for example when the attachment is taken out of gear, or is removed from the machine, thereby causing flattening-of the gelatinerollers. V i

A further point is that the lockingof the inking attachment to the main machine by means of the screws previously mentioned absorbs time and requires the use of a tool to accomplish it. p

Now the object of the present invention is to improve upon the construction of the inking attachment in such a manner that these disadvantages are overcome.

In the first place the invention relates to providing means whereby all the rollers are separatedautomatically from each other as well as from the faces of the types when the impression roller is taken out of corn. tact with the printingcylinder, for example when the attachment is taken out of gear or is removed from the machine, thereby preventing the known tendency which gelatine rollers have for flattening and so producing defective work by unevenly inking the form the automatic separation of the rollers eliminating the necessity for care on the part of the operator.

A further object of the invention 15 to improve upon the method of securing the inking attachment to the machine.

The separation of all rollers to prevent flattening takes place when the impression roller is taken out of printing position; this action allows a plunger to fall under the pressure of a spring, and a member pivoted to the plunger rises so that some of the rollers which were normally resting upon each other, their spindles being free, are lifted clear of each other by reason of the member acting upon the spindles of the said rollers; at the same time the movement of the plunger causes the ductor, with its ductor roller to be lowered, so that the duetor roller is lowered out of contact with either a transfer roller, or the other rollers.

The locking of the inking attachment to the main machine is effected by means of catches pivoted to the side frames of the attachment each catch being provided with two surfaces or teeth for engagement with pins secured into the side frames of the main machine.

The means whereby all the rollers are separated automatically from each other as well as from the faces of the type as well as other features embraced by the present invention will be understood from the following description, reference being had to the accompanying drawings whereon:

Fig. 1 shows a plan view of the inking attachment with the various rollers mounted therein.

Fig. 2 is a diagrammatic front side elevation of the inking attachment applied to one type of machine.

Fig. 3 is a rear side elevation of the inking attachment.

Fig. 4 is a diagrammatic View in section showing the inking rollers separated from each other.

Fig. 5 is a detail view showing part of the ink ductor and its supports.

Referring now to Fig. 2 of the drawings which represents a diagrammatic view of the main printing machine, 10 represents one of the side frames of the machine, 11 the printing cylinder which carries the usual form of type, and 12 the impression roller mounted in the housings 13, which for the purpose of the present invention may be considered as being formed integral with a bracket 13 which is housed in a pivotal manner in the side frames 10 of the machine. Attached to the bracket 13 is a spring 13 the free end of which is secured to the side frame. Attached to an extension 14 of the bracket 13 is a lever l t which at one extremity is formed with a depression into which fits the ball end of a rod 15, the other end of which is pivoted in a hand lever 16 which is supported in a pivotal manner in the side frame of the machine. The rod 15 is pivoted in the hand lever 16 in such a manner that it forms a toggle and when manually placed in the posit-ion shewn in Fig. 2 causes the impression roller 12 to make contact with the printing cylinder. The toggle thus created securely locks the impression roller in this position. hen the hand lever 16 is manually operated in such a manner that the toggle is pulled over centre and thus unlocked, the spring 13 pulls upon the bracket 13 and the housing 13 so that the impression roller 12 is taken out of contact with the printing cylinder. The movement of the hand lever 16 in the case of a power driven machine also switches on the current to start the machine.

In? the other end of the extension lever ll there is formed an indentation 14. Fitting into this indentation is a plunger 17 fitted with spring 18, the extremity of the plunger being screwed into a yoke 10 which is pivoted in a lug 20, formed on a member 20 fixed on a rod 21 which passes through the side frames 22, 22 of the detachable inking device, and to the other end of the rod 21 a second member 20 is attached.

The said member 2O has secured to its free end a spring 20 the purpose of which is to assist the spring 18 so that undue tortion is not caused to the shaft 21.

The shape of the upper portions of the two members 20 and 20 is such that when the plunger 17 is in its lower'position, that is when the impression roller 12 is out of engagement with the cylinder 11, the rollers 23, 24 and 25 are lifted out of contact with each other. The transfer roller 26, the purpose of which is to transfer ink from the ductor roller 27 to one of the other rollers i. e. 25 is carried in bearings formed in arms 28 (Figs. 1 and t) which are fixed to a shaft 29 which is housed in a pivotal manner in the side frame 22 of the attachment. The arms 28 are caused to rock as by means of a cam operated by the printing cylinder 11 so that when the inking rollers 41, 42, 23, 2t and 25 are in contact with each other the roller 26 alternately makes contact with the ductor roller 27 and the waver roller 25. Stops 28 fixed in the side frame of the device prevent undue movement of the arms 28 so that the transfer roller 26 cannot make contact with the ductor roller 27 and the waver roller 25 when the inking rollers 41. 4:2, 23, 24 and 25 are not in contact with each other, that is when the position thereof is as shown in Fig. 4.

The ductor roller 27 is mounted in bearliU ings formed in the ends of the ductor 30, the said ductor being mounted on pivots '31 secured in the side frames of the attachment. I

The ductor 30 with its roller 27 breaks contact with the transfer roller when the plunger 17 together with the yoke 19 is moved intoits lower position by reason that a'projection 32 on the ductor rests upon a projection 33 of the yoke the said latter projection passing through an aperture in the-side frame.

The movement of the plunger 17 to its lower position operates the members 20 and 20 so that they rise to their highest positions to bring the rollers 23, 24 and 25 out of contact with each other. I I

An extension 20 of the member 20 to which the plunger 17 is afiixed is connected with a rack 34 by means of teeth formed on a pivot 2O which for the purpose of the present invention may be considered as fixed to the extension 20 so that when the plunger 17 is in its down position the rack is in its highest position. The rack 34 which is free to move in a slide 35 engages with two pinions 36 and 37 which are housed in bushes fitted into one of the side frames, the said bushes being also used as bearings for the gears 38 and 39 which are in mesh with a gear (not shown on the cylinder 11, and drive by means of dogs 40 (Fig. 1) formed on their surface or applied thereto the gelatine rollers 41 and 42 which supply ink to the form.

These gelatine rollers are free to rotate upon eccentric portions of spindles. One end of each spindle is housed in the bushes which support the gears, their ends being fixed to the gears 36, 37 the other ends being housed in the side frame 22 being retained there by means of spring actuated pawls.

It follows therefore that when the pluner 17 is brought to its lowest position, that is to say, when the impression roller 12 is out of contact with the printing cylinder 11, the movement of the rack 34 in its slide 35 causes rotation of the gears 36 and 37 which rotation causes the eccentric portion of the spindles and incidentally the rollers 41 and 42 to take up a position such that they are taken out of contact with the printing form.

The locking of the inking attachment to the main machine is efiected by means of catches 43 and 43 pivoted to the side frames 22 and 22 of the attachment each catch vbeing provided with two surfaces or teeth weight of which is supported by the legs 46, 46 fitting over projections 47 formed on the base plate 48, rests in the out of gear position so that the machine may beused for printing by the medium of a ribbon in the well known manner.

- When, however, the rearward surfaces or of gear or idle position, or complete removal of the attachment from the machine causes the form inking gelatine rollers 41 and 42 to be revolved on their eccentrics out of the path of the form, other rollers 23, 24 and 25 to be lifted clear of each other as well as the form inking rollers and the transfer roller 26, while the ductor roller 27 drops out of the path of the transfer roller.

Having thus described my invention what I desire to secure by Letters Patent of the United States is as follows 2- 1. In an inking attachment applied to type duplicating and like printing machines, the combination with a printing cylinder, a type form carried thereby, type form inking rollers, spindles on which said rollers are rotatable, an impression roller capable of contact with said cylinder, a transfer roller, other rollers associated with said inking rollers, and an ink. ductor; of a mechanism operable when the impression. roller is taken out of contact with the printing cylinder to cause the ink ductor to be lowered out of contact with said transfer roller, said other rollers to be raised out of contact with each other as well as with said transfer roller and said type form inking rollers, and to further cause the latter rollers to be rotated on their spindles out of contact with said type form.

2. In an inking attachment applied to type duplicating and like printing machines, the combination with a printing cylinder, inking rollers, spindles supporting said inking rollers, supporting members for said spindles, other rollers associated with said inking rollers, and an impression roller capable of contact with said cylinder and a housing for said impression roller having an extension; of a mechanism for separating said inking and other rollers, said mechanism including a spring pressed plunger, one end of which abuts said extension and the other end is pivoted to said supporting members, said plunger being operable to lift said inking rollers out of contact with one another as well as out of contact with said other rollers when said impression roller is moved out of contact with said printing cylinder.

3. In an inking attachment applied to type duplicating and like printing machines, the combination with inking rollers, a transfer roller and an ink ductor in contact with said transfer roller and having a projection; of a mechanism for separating said inking rollers including a spring pressed plunger having a projection thereon upon which rests the projection of said ink ductor, said plunger bein operable, in its descent, to cause said ink ductor to drop out of contact with said transfer roller.

4. In an inking attachment applied to type duplicating and like printing machines, the

combination with a type form, inking rollers to contact therewith, eccentric spindles supporting said rollers, other rollers associated with said inking rollers, and gears fitted to said inking rollers; of a mechanism for separating said rollers including a spring pressed plunger, a pair of members pivotally connected to said plunger and supporting the spindles of said inking rollers, an extension on one of said members, and a rack secured to said extension, the reciprocation of said rack causing rotation of said gears whereby said inking rollers will, by reason of their eccentric spindles, be turned out of contact with said type form.

In testimony whereof, I have aflixed my signature.

WILLIA HENRY STOREY;

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