US2288174A

US2288174A - Printing press

Info

Publication number: US2288174A
Application number: US276702A
Authority: US
Inventors: Wood Elizabeth Ogden; Charles L Ricards
Original assignee: Wood Newspaper Machinery Corp
Current assignee: Wood Newspaper Machinery Corp
Priority date: 1939-05-31
Filing date: 1939-05-31
Publication date: 1942-06-30
Anticipated expiration: 1959-06-30

Description

vJune 30, 1942. H. A. W. WOOD ETAL PRINTING PRESS Filed May 51, 1939 6 Sheets-Sheet l June 30, 1942. H. A. w. woon ET A1.

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June 30, 1942.

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PRINTING. PRESS Filed May 3l, 1939 6 Sheets-'Sheet 6 Patented June 30, 1942 PRINTING PRESS Henry A. Wise Wood, deceased, late of New York, N. Y., by Elizabeth Ogden Wood, executrix, New York, N. Y., and Charles L. Ricarda, South Plainfield, N. J., assignors to Wood Newspaper -Machinery Corporation poration of Virginia Plainfield, N. J., a cor- Application May 31, i939, serial No. 276,702

4 claims. (ci. 10i- 176) This -invention relates to improvements in a printing press and is particularly applicable when employed in connection with a high speed press Asuch as used by most metropolitan newspapers.

The principal objects of the invention are to provide a press which operates at high speed with means contained within itself for preventing the ne mist of ink which, by the action of centrifugal force, is apt to be distributed by such a press, from being thrown outside the press where it can do any damage; to make the inking mechanism and printing couple readily accessible to facilitate adjustment, moving of rollers or cleaning; to construct a press of this typein which the arch is formed as usual and the inking system constitutes the sides of the arch; to locate the ink reservoirs or fountains in the lower end of this arch at the sides approximately at oor level; to guide the web through the press in -such a manner that it will not be affected by the ink fog; to make the press easily accessible for reaching the web and allow the pressman to reach various parts of the press readily; to arrange the fountain regulating keys at a suicient height to permit adjustment without the necessity of reaching downto the press floor or reaching down unduly; to provide access to the main fountain keys so that sections of them can be removed; to permit application of a special color fountain, and to provide the press with a cover employing a part of the press frame to cooperate therewith which will effectively enclose, not only the press, but particularly the inking mechanism and yet provide such cover with doors to make the parts accessible for adjustments and the like.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. 1 is an end view of an arch type high speed press embodying the principles of this invention;

Fig. 2 is a side view of the same;

Fig. 3 is an enlarged end view showing one side;

Fig. 4 is a side view of larger scale than shown in Fig. 2;

Fig. 5 is a sectional view on the line 5 5 of Fig. 7;

Fig. 6 is a sectional view on the line 6 6 of Fig. 1; v

Fig. '7 is a sectional view on the line 1 1 of Fig. 2;

Fig. 8 isa transverse sectional view of the ink fountain showing the inking system in diagram;

Fig. 9 is a similar cross section of the ink fountain employing an additional fountain for color;

Fig. 10 is a partial sectional view on the line III-I 0 of Fig. 1l, showing the fountain roll drive;

Fig. 11 is a plan of the same, and

Fig. 12 is an elevation of the construction shown in Fig. 9 in which the auxiliary fountain is assembled with the regular fountain.

'Ihe invention is shown as applied to a high speed newspaper printing press of the type in which the press isarch-like in end elevation and that is the type of press to which this invention is particularly, but not exclusively, adapted. At the speed developed by such a press centrifugal force overcomes the surface tension of the ink to a certain degree and a mist or fog is produced, especially in the lower section of the inking mechanism. It is partly to avoid injury to the web by this fog and the spreading of the fog outside the press that several of the features of the invention are employed. The type of press shown receives the web W from below and it is threaded between the two inking mechanisms and through the rolls of the printing mechanism, in' the manner shown, being discharged near the top.

In Figs. land 2, a thin metal guard or cover I is made to coincide with the outline of a press side frame 2 to effectively conceal the ends of the plate, impression cylinders, and the ink drums, or anything attached to said parts. Referring particularly to Fig. 5 for a clearer diagram of this arrangement it' will be noted that the press side frame is carved or hollowed out to accommodate various parts within the depressions.

A plate cylinder 3, which is rotatably mounted in the side frame 2 by bearings 4, is driven by a gear 5 which is attached to the end of the cylinder 3 and is within the hollow of the frame 2.

Ink drums

6, 1 and 8 are carried within the frame 2 by bearings 9, I0 and II in such manner that they can be moved longitudinally as well as rotated. Fig. 5 shows that the mechanism which causes the ink drums to be moved longitudinally is carried inside of a hollow of the frame 2.

'I'he cover I seals the above mentioned parts within the frame'2, making an oil tight arrangecylinder and ink drums is constructed in like manner to accommodate any parts attached to said cylinders or drums.

A cover of this design has an arched opening beneath the press. To enclose this portion of the machine, hinged doors I5 on the press drive side, and hinged doors I1 on the end of the press opposite to the drive, are used. Said doors are hinged by hinges I3 to the cover I and suitably shut olf this space on both ends of the press unit, but at the same time make it possible to reach parts inside of the unit. Figs. 1, 6 and 'I illustrate the.

with the cover on that end of the press. Handles 23 secure the doors I1 in place.

The right and left hand sides of the press, as shown in Fig. 1, are constructed in a similar manner so that the description of one side will serve for both. Fig. 1 shows that the guards extending from the floor to a point over the plate cylinder 3 are made in a. number of sections.

A stationary cover section I3 supports a plurality of fountain blade adjusting screws 23 and keys 25 and covers the lower outside part of the ink motion. These screws adjust fountain blades 24. Said section is held in position by a channel 23 secured to the side frame 2 by a bracket 21. Said channel protects the keys 25 of the adjusting screws 23 which are placed in a reasonably high position, thereby eliminating the necessity of bending very far down to make adjustments.

Connected by hinges to the top of the same channel is a section 29 that may be opened downward to make the upper part of the ink motion and part of the plate cylinder accessible. The section 23 is held in position by pins 33 and 3| that are accommodated by suitably drilled holes in the side frame 2, as best shown in Fig. 4.

A spring 32, abutting against a bracket 33 secured to the guard section 23, pushes against a collar 34 on the pin 33, thereby causing the pin 33 to remain extended beyond the guard. The same construction is used on the pin 3|. Manipulation of a handle 35, Fig. 2, pivotally mounted on the inside face of the section 23, will cause

links

36 and 31 to withdraw the pins 33 and 3| respectively and allow the guard section 23 to be opened and lowered.

When the section 29 is in closed position it becomes a support for the section 33 that covers the plate cylinder 3.. The section 33 is carried at the upper end by hinge studs 33 resting in brackets 43 secured to the side frame 2. Said hinge stud will allow the section 33 to be raised by pivoting upward, allowing the pressman to reach the plate cylinder 3.

'Ihe sections I9 and 29 allow easy access to the distributing roll surfaces, both for roller adjustment and removal. The door 4I which is hinged to the cover I at the end of the press, is swung outward to expose the roller ends and sockets in which rollers rotate. Said door is securely fastened in position by a locking handle 42 which engages with the bracket 21.`

It is now vident that the guards, covers and doors cooperate in making this press completely enclosed. The openings at both ends of the unit are closed up, and the outside of the press is covered from the floor line to above the plate cylinders. The arrangement of the guards will eliminate all ink fog from the press room and allow the pressman to carry on his work on the machine efficiently.

It will be noted that a ductor type fountain is used. A fountain roll 5I in a fountain bowl 52 is partially submerged in ink and is rotated therein accumulating a supply of ink on its surface. A ductor roll 53, which is oscillated back and forth between the fountain roll 5I and ink drum 3, is rotatably mounted at the end of lever arms 54.

When the ductor roll 53 is placed against, the fountain roll 5I, an accumulation of ink will be picked up which will be deposited on the ink drum 3. The ink drums 1 and 3 are arranged with a plurality of transfer and distributing rolls in such a manner that a thin film of ink is carried to form rolls 53 and 59 which are in contact with printing plates carried on the plate cylinder 3 and will transfer to the plates on said cylinder a sufficient quantity of ink to produce a properly` printed page.

The fountain roll 5| picks up a quantity of ink far in excess of that required, and it is common practice to employ a blade placed at an angle to the fountain roll to remove the extra ink. The fountain blade 24 is secured to the fountain back 32 which is itself secured to the fountain bowl 52 becoming a partial cover thereof. The plurality ofscrews 23 threaded into the fountain back 62 is brought against the blade 24 forv the purpose of adjusting clearance between said blade and the fountain roll 5I, thereby regulating the amount of ink supplied to the ductor roll 53.

Each screw 23 is made with a head 25a designed to accommodate a socket 33 of an extension rod, part of the screw 23, that is carried in a guard I3. Said guard is composed of sections which are removable, each section being in alignment with a newspaper page. A spring '31 abutting the guard I3 and a collar 33 attached to the extension rod 23 causes thev socket 33 to be held securely in place over a screw head 25a. A thumb screw type head 25 on the screw 23 simplifies the screw adjustment. Therefore, it is evident that the removal of any section of the guard I3 from the press will cause the screw 23 to be removed. It is common practice to make newspaper presses four pages wide, in which case there would be four guard sections I9 per fountain back.

This is a desirable feature when using an auxiliary fountain for color as shown in Fig. 9. Adjusting screws 23 may be used in shutting oil' the ink supply for the page desired'and the guard section will be removed so that a color fountain 1| can be bolted in position on the fountain back 32, as shown.

A color fountain roll 10 is carried in the fountain 1I so that it is partially submerged and rotates in the colored ink. A fountain blade 12 is secured to a fountain back and cover 13. Adjusting screws 14 regulate the amount of ink transferred to a ductor roll 15 rotatably mounted in the end of lever arms 13. The ductor roll lever arm 16 is operated by a cam 11 secured to a fountain roll drive shaft 3| and acting against a cam roll 13 mounted in a lever arm 13. A spring 13 attached to said arm and secured to the fountain back 13 holds the ductor roll 15 against the fountain roll 10. The cam action will cause the roll 15 to be moved against an ink drum 33 which will pick up the color from the ductor roll and distribute the ink film to the plate cylinder 3 through the regular distribution system, already described.

A shaft 82 is connected to and rotates proportionally to the main drive through mechamsm not shown. Said shaft is made on one end in the form of a clutch jaw 83 to engage a shaft 84. Mounted on the shaft 82 is a gear 85 that operates a gear 86 to which is secured a bevel gear 81, and both of which are carried by a shaft 88 mounted in suitable bearings 89. The bevel gear 81 drives a gear 9| mounted on one end of a shaft 92. To the other end of the shaft 92 is fastened a gear 93 meshing with a gear 90 secured to the shaft of the main fountain roll t is evident, therefore, that the operation of the press will cause the fountain roll 5| to operate.

When using the auxiliary color fountain it is necessary to provide a suitable drive. The shaft 84 is carried by bearings 95 and 96 in a casing 91. Mounted on said shaft 84 is a helical gear 98 that drives a gear v99. Said gear 99 is attached to a shaft 60 also carried in the casing 91 by bearings 5| and 85. The shaft 60 extends beyond the casing 91 and by a coupling 63 is connected to the auxiliary fountain roll shaft 8|. It should be noted that the casing 91 and its component parts may be removed as a unit from the gear case 64 when the color fountain is not used and the opening in the casing 64 may be concealed by a suitable cover.

It is evident that a simple and suitable drive is obtained for usewith a color fountain.

The adjusting screw extension rod guard |9 in Fig. 8 becomes |9a. |9b, and |9d in Fig. 12. Said guards are each individuallyl removable. The guard.' which would be |9c and placed between the guards |9b and |9d has been removed and replaced with an auxiliary ink fountain 1 I. Previous to removing the guard |'9c the adjusting screws 28 have been set to cut oi the ink supply in this section. It is also possible to prevent ink' from the main fountain from feeding by removing or setting off the main ductor roll 53. This would be preferred where the main fountain of that particular ink motion was not-to be used on any of the four pages.

In multiple arrangement, a plate |02 will become a driver similar to the collar 55 and will cooperate with a plate'similar to the plate |0| on the next fountain.

As shown, a margin screw |03 is not supplied with an extension rod as this is infrequently adjusted. A suitable recess |04 is provided at this position to make it available for adjustment by a wrench, if necessary, and to allow adjustment in the event it is desired to do so.

It is apparent therefore that an apparatus is devised for optionally installing one or more small page wide fountains by removing detachable parts of the main fountain back and that when this is accomplished, both the main and auxiliary fountains are located on the same side of the main center line of the ink motion.

Having thus described our invention and the advantages thereof, we do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what we claim is:

1. A printing press comprising printing couples located at the top thereof, a press frame supporting the couples and of an arch formation, inking mechanisms comprising horizontal rolls and cylinders located in vertical alignment within the two sides of the frame, covering panels movably mounted on the frame for enclosing the sides of the couples and inking mechanism and for exposing them when desired, said inking mechanisms comprising vertical fountain blade adjusting screws having screw manipulating keys at their upper ends, for the purpose described, adapted to be exposed for adjustment, and removable guard sections or cover plates on which said screws are mounted and with which they are removable.

2. A printing press comprising printing couples located at the top thereof, a press frame supporting the couples, inking mechanisms comprising horizontal rolls and cylinders located in vertical alignment within the two sides of the frame, and an auxiliary color inking mechanism supported by, and constituting a cover for part of, the first named printing mechanism.

3. A printing press comprising printing couples located at the top thereof, a press frame supporting the couples, inking mechanisms comprising horizontal rolls and cylinders located in vertical alignment within the two sides of the frame, an auxiliary color inking mechanism supported by the rst named printing mechanism and comprising-an auxiliary ductor roll and an auxiliary ink drum arranged to transfer color to the inking mechanism.

4. A printing press comprising printing couples located at the top thereof, a press frame supporting the couples, inking mechanisms comprising horizontal rolls and cylinders located in vertical alignment within the two sides of the frame, an auxiliary color inking mechanism supported by the rst named printing mechanism and comprising an auxiliary ductor roll and an auxiliary ink drum arranged to transfer color to the inking mechanism, and a cam and spring for operating the auxiliary ductor roll.

Deceased.

CHARLES L. RICARDS.