US1159860A

US1159860A - Inking mechanism.

Info

Publication number: US1159860A
Application number: US83011214A
Authority: US
Inventors: Irving F Niles
Original assignee: R Hoe and Co Inc
Current assignee: R Hoe and Co Inc
Priority date: 1914-04-07
Filing date: 1914-04-07
Publication date: 1915-11-09
Anticipated expiration: 1932-11-09

Description

I. F. NILES.

INKING MECHANISM.

APPLICATION FILED APR. I. 1914.

WIT

INvEN- TonfI n@ A11-mr.,

Nassas 7 L f. muis. INKING MECHANISM. 'APPLICATION FILED APR. 7. |914.

2 SHEETS-SHEET 2.

Patented N ov.l 9, 1915..

UNITED STATES PATENT OFFICE.

IRVING F. NIIZES, 0F PLAINFIELD, NEW JERSEY, .ASSIG-NOR T0 :Rt- 'HOE NEW YORK, N. Y., A CORPORATION OF NEW YORK.

AND GO., 0F

INKING MECHANISM.

T 0 all whom t may Concern Specication of Letters Patent.

Be it known that I, IRVING F. Nuns, al

citizen of the United States, residing at Plainfield, county of Union, and State of New Jersey, have invented certain new and useful Improvements in Inking Mechanism, fully described'and represented in the following speciication and the accompanying drawings, forming a part .of the same.

This invention relates to certain improvements in inkng mechanism for rotary printing' machines, and has been designed particularly with reference to machines of the planographic or offset-type' although if desired it may be used in ot er relations, as, for instance, in high speed sheet fed typographic presses.

Planographic or oifset machines and highspeed sheet fed machines of other types are usually provided with mechanism whereby the form and the form rolls employedl for inking the form are tripped or thrown'out;

of printing relation with each other in the event of a sheet being missed, or a sheet being misregistered, this construction being adopted to prevent the inking of the form when no sheet is present. In such constructions where the form rollers are tripped or thrown out'of printing relation with the form, it is desirable that such rollers and the intermediate distributing cylinder and rollers employed be permitted to continue in operationv while in tripped position, to'prevent the ink from caking on the surfaces of the rolls. It is further desirable in such constructions that the means employed for supplying the ink to the train of inking.,

rolls shall be thrown out of operation while the form rolls are tripped in order to prevent any undue accumulation of ink on the train of rolls. I v

It is one object of the present invention to provide a construction for use in machines of the type referred to by which the means employed for supplying ink to the train of,

inking rolls shall be thrownout of operation when the form rollsare moved out of printing relation with the form, the form rolls and the train of distributing rolls continuing in operative relation with each other.

It is a further object/of the invention to provide a construction whereby theink feeding means may be thrown into operation while the nking rolls are in tripped re- Patented Nov. 9, 1915.

lation with the form of the machine, so that-` after such rolls have been tripped and before they are again thrown into printing relation with the form cylinder, they may be given a desired amount of'ink,-as for instance in inking up prior to the beginning of a printing operation when the rollers are without ink, the operator can throw into operation the ink-feeding means before the ink rolls are brought'into printing relation with the form. i

It is a'further object of the invention to provide a simple 'and compact mechanism for effecting these results. y

For a full understanding of the invention, a detailed description f the same willfnow be given in connection with the accompanying drawings, in which: v

Figure 1 is a side elevation of so much of a rotary planographic printing machine as isnecessary for an understanding of the invention, the parts-being shown in position when the forni cylinder is being inked;

is a side view with certain parts broken away, taken on the line of the arrow a of Fig. 1; and Fig. 5 is a detail on an enlarged scale showlng the means, provided whereby the ink feeding means may be thrown into.

the form rolls are in tripped operation while position. v

Referring now to these. drawings, the mathe invention is a rotary planographic or4 l vibrating ductor 5 operated in any suitable manner as by a ca m 6 mounted on a stud 7 in the frame of the machine, this cam -co' operating with a cam roll 8 carriedby one .arm of a cam'levei` on a rock-shaft 10 jourchine which has been selected to illustrate naled in the frame of the machine, the ductor 5 being mounted in the other arm of lever 9.

The means employed for causing the form rollers and the form cylinder to be thrown out of inking rel-ation with each other when a sheet is missed, or for any other reason, may be of any suitable or desired construction. In the machine illustrated, the form rolls are tripped or thrown out of printing relation with the form cylinder, the mechan nism for effecting this including two-part frames on each side of the machine, each frame comprising sections 11, 12 pivoted on the ends of the shaft 13 of the distributing cylinder. The form rollers 4 are mounted so as to be lifted out of inking relation with the form cylinder by these frames when the latter are swung about their pivot. In the particular construction illustrated, the lower members 3 of the train of distributing rollers are 'lifted with the form rollers, these members being suitably carried in the swinging frames. The frames'are operated to lift the rolls out of inking relation with the form in the machine illustrated from a sheet detector mechanism when a sheet is missed, and operated' to bring the rolls into operative relation with the 'form when a sheet is again fed. The detector mechanism employed may be any suitable one, and as such mechanism is well'known in the art and is not necessary for an understanding of the invention, a showing thereof has been omitted. The connect-ions from the detector mechanism to the frames may be oit any suitable character. In the construction illustrated, such connections include a rocking cam plate 15 mounted on a stud 16 in the frame of the machine, this plate being rocked by an arm 17 connected to the detector mechanism. This cam plate at each end is provided with cam grooves 17, in whichv work cam rolls 18 on arms 19 depending from the frames. When the cam plate is rocked about the stud by the arm 17 to the position shown in Fig. 2, the frames 11, 12 are swung about their pivots and act to liftthe form rolls out of inking relation with the form.,

The distributing cylinder, the form rollers and the intermediate distributing rollers are constantly driven. The driving connections for these various parts may be of any desired character. In the construction illustrated, the distributing cylinder 2 is driven from the form cylinder 1 by means of an intermediate gear 20. The form rollers 4 and the smaller distributing rolls 3" of the distributing train are frictionally driven. In thc best constructions, the larger -

rollers

3 and 3 of the distributing train are gear-driven from the distributing cylinder 2 through intermediate gears 21.

The ink may be fed to the ductor roll from which it is delivered'to the train of distributing rolls in any suitable manner and from any suitable source of supply. In the construction illustrated, there is provided an ink fountain indicated at 22, in which rotates a fountain roll 23, which in the preferred construction is intermittently driven. The connections employed for driving' this roll may vary widely in construction. These connections will, however, in accordance with the invention, include means whereby the rotation of the fountain rollwill be stopped when the form rollers have been tripped or thrown out of inking relation with the form cylinder,vso that the supply of ink to the ductor will at once stop. In the particular machine illustrated, the fountain roll shaft 24 carries a ratchet 25, with which coperates a pawl 26 on a pawl arm 27 pivoted on the shaft 24 of the roll.

The other end of this pawl arm is provided with a stud 28 which Works in the slotted end 29 of a crank arm 30. This crank arm may be operated to rock the pawl arm in any suitable manner. In the construction illustrated, the crank arm is driven from the distributing cylinder 2 through a gear 31 suitably mounted on the stud 7 in the frame of the machine, this gear being driven from a pinion 32 onthe shaft 13 oit the distributing cylinder, and provided with a crank pin 33, to which the end of the crank arm is secured.

The particular construction whereby the rotation of the fountain roll is stopped may be somewhat varied. In the best constructions, the driving connections to the roll will include a controller which acts to render the driving means inoperative. In the construction illustrated the controller causes the pawl arm 27 to assume a position in which the stud 28 is held out of engagement with the ends of the slot in the crank armBO, and the crank arms runs free von the stud.

The particular form of the construction may be varied. As shown, this is effected by providing the pawl arm 27 with a pin 35 to which is secured a controller rod 36 having a spring 37, this spring taking between a collar 38 on the rod and a puppet 39. With this construction, the spring normally tends to cause the stud 28 to be held at the outer end of the slotted crank arm 29 and through the throw of the crank to rotate the fountain roll. When the form rollers are tripped out of inking relation with the form,.the spring 37 is held from eX- erting its thrust on the pin 35 through connections which will now be described, these connections being preferably operated by the movement of the swinging frames when they are swung to lift the form rolls from the form. Mounted on the swinging frame 12 is a plate 40 having a notch or recess 41 in which takes apin 42 carried on one end of a lever 43 pivoted on a stud 44. The upper end of this lever is provided with a lugI 45, in which is a pin 46 spring-seated against a spring 47. The puppet 39 before referred to is recessed, and in the recess is secured a pin 48 on which is pivotally mounted a Vpawl 49 having a nose 50. The tail of the pawl is arranged to take into a recess 51 in the outer end of the rod 36 before referred to. When the parts are in normal position as illustrated in Fig. l, the

pawl drops down out of the way of the rod.

When, however, the form rollers are tripped out of inking relation with the form through the swinging of the frames, the swinging movement of the frame 12 causes the plate 40 to move to the left. This movement of the plate rocks the lever 43 on its pivot and causes the spring. pin 46 to come in Contact with the nose 50 of the pawl, throwing the pawl up. At the next reciprocation of the rod 36, Ithe pawl takes into the recess in the end of the rod and holds the rod 36 against return movement. This prevents the spring from forcing the stud 28 into the end of the slotted crank arm 29 which in its further movement rides freely on the stud, and the feeding movement of the fountain roll is at once stopped.

In machines constructed in accordance with the invention where thel fountain roll is thrown out of operation by the tripping movement of the form rolls, means are specially provided whereby the fountain roll may be thrownl into feeding relation with the inking rolls while the latter are in tripped position. These means may be somewhat varied but in the particular construction illustrated the spring-seated pin 46, before referred to, which controls the movement of the pawl 49 is so arranged that it can be manually operated by an attendant. As illustrated in Fig. 5, there is a nut 52 on the end of the pin, which may be grasped and the pin pulled down against the spring. It will be understood that the crank arm 30 is continuously operating and that even when theparts are in locked posi-` tion, there is a slight movement of the pawl arm 27. This movement is provided so as to effect the release of the pawl 49, although it is not suficient to cause a feeding movement of the pawl 26. When the spring pin 46 is pulled or thrown down against the spring, the next reciprocation of the crank moves the rod 36 sufficiently to free the pawl 49, which drops down into the position shown in Fig. 5, the pin restlng against the end of the nose 50 of the pawl. When the parts are in this position, the spring rod 36 is released and the parts are permitted to partake of their normal ink-feeding movement. These movements will continue until the tail of the pawl 49 is thrown up by the operatorand the p in thereby caused to assume the position shown in Fig. 2, which will occur as soon as the pawl is raised, ,the parts then being locked in nonfeeding position.`

While the invention has been shown and described in relation with a planographic or offset press, it is understood that it may be used if desired in other relations and it is not to be restricted to the precise details of construction shown, but that changes and variations may be made in such construction without departing from the invention.

What is claimed is l. In an inking mechanism, the combination with a form cylinder and form rolls, of swinging frames operating tothrow the form rolls out of inking relation with the cylinder, a fountain roll, and means actuated by the movement of the frames for causing rotation of the fountain roll to stop when the frames are swung to throw out the form rolls. v

2. In an inking mechanism, the combination with a Iform cylinder and'form rolls, of swinging frames for lifting the rolls out of inking relation with the form, a fountainV roll, connections for driving the .roll, a spring operated controller rod, a pawl for locking the rod, a plate carried by one of the frames, anda pin operated by the plate for actuating the pawl.

3. In an inking mechanism, the combination with a form cylinder and form rolls, of a pair of form-roll lifting frames, a fountain roll, connections for driving the roll, a spring controller rod, a pawl for locking the rod, a pin, connections from one of the frames for actuating the pin when the frames are operated to lift the rolls to move the pawl to locking position and permitting the pin to be depressed by hand to release the pawl when the parts are in tripped position.

In testimony whereof, I have hereunto set my hand, in the presence of two subscribing witnesses.

IRVING F. NILES.