US1785158A - Ink-fountain drive - Google Patents

Description

l. TORNBERG Dec. 16, 1930.

INK FOUNTAIN DRIVE original Filed sept.

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Original Filed Sept. 23, 1927 3 Sheets-Sheet 2 l l l l l l l l l l l l l I l l l Dec. 16, 1930. L TQRNBERG 1,785,158

INK FOUNTAI N DR I VE Original Filed Sept. 23, 1927 3 Sheets-Sheet 3 1 50 ously Patented Dec. 16, 1930V i UNITED STATES PATENT OFFICE ISIDOB TOBNBERG, OF PLAINFIELD, NEW JERSEY, ASSIGNOR '10 WOOD NEWSPAPER IACHINEBY CORPORATION,

OF NEW YORK, N. Y., A CORPORATION OF VIRGINIA.

INI-FOUNTAIN DRIVE Application :tiled September 23, 1927, Serial No. 221,453. Renewed AIay 9, 1930.

This invention relates to driving means for the ink fountain of a rinting press, particularly of a press invo ving a number of units.

The principal ob'ects of the invention are to provide means w ereby the different fountains can be driven from the regular source of power used for driving the remainder of the press, at a speed proportionate to the latter through various ranges and stages of speed as may be desired; to provide for application of the power to the fountains to drive them independently of the remainder of the press for the purpose of properly cutting up and distributing the ink uniformly ron the cylinders before any paper is fed throu h the machine; to provide for driving all t e fountains in any given number of units, either independently or collectively from a single point without running the remainder of the press; to provide in the same machine for driving the fountains at a rate of speed disproportionate to that of the press; to provide for maintaining constant alignment ben tween the motor and the fountain and to provide a construction in a simple form involvin few parts and those of such a nature as toe easily assembled and taken care of.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which Fig. 1 is a diagram of a newspaper printing plant arranged according to this invention; y

Fig. 2 is a side view of a newspaper printing press showing a preferred arrangement;

Fig. 3 is a plan showing one form in which each motor for driving an inking fountain can be arranged, and.

Fig. 4 is a sectional view of the same on the line 4 4 of Fig. 1.

Heretofore in driving newspaper printing machines involving a plurality of printing units, the several ink fountains have been geared directly to the press. This limited the number of speed variations, if any were provided at all, between the fountain and the driving mechanism of the press unit. Obvi- 1t is difficult to introduce any gear changes between the fountains and the press. Furthermore, this makes it necessary to run the whole press if the fountains are to be run and does not allow of the varying of the speed of the ink fountain finely enough to suitV inlring requirements. It has been necessary heretofore to ink up each fountain independently before startlng on a run, thus wasting much time. The inking mechanisms also could not be run ata disproportionate speed, if desired, for certain purposes.

This invention is shown as applied to a well known type of printing press, usually employed for newspaper work in which of course each couple 1s rovided with an ink fountain 10. Each ing fountain cylinder is driven by an individualelectric motor 13, which, in the form shown, is located directly on the fountain and drives the cylinder through a worm 14 and worm wheel 15, the latter being mounted on the shaft 16 of the fountain cylinder.

lach of the motors 13 is controlled by a rheostat 18which is located in the control circuit for the press. It will be seen that the current can be sent through any individual motor to drive that motor at any desired speed without driving the others. Furthermore each rheostat 18 can be set at the proper point to drive its motor correctly and then the motors will all be connected up with a direct current line. A rela 19 is used to short circuit the rheostat. 'Ih'e relay is connected to be operated from the circuit coming from the controller with which the printing press is provided. Thus, it is possible, at a very lowT speed of the press, to cut out the rheostat or any part of it that ma be desired for the purpose of varying t e speed of the fountain c linder driving motors at different points of7 the controller setting, in adition to the ability to vary the speed manua y.

The armatures of the motors are fed from an electric current generated by a direct lconnected generator 20 driven by the main driving motor 21 of the ress, the speed of which varies with the speed) of the press.A This keeps the speed of the fountain driving motors proportionate to the speed of the press within any range desired by adjustment of the above circuit.

mentioned rheostats. The field of the gener-v ator and the fields of the fountain driving motors are fed from a single direct current supply that is controlled through one or more fixed or adjustable rheostats 22adapted to be short-circuited by a relay 23 which in turn is controlled shown). e" The main rheostat (not shown is .connected up with the main motor to rive that for o erating the press couples atany' desired spee ,the rheostats 18 all being set correctly. The several ink fountain c llnders will be by the press controller (not driven in accordance with t e setting of the 'main rheostat, that is, they will be driven at a speed proportional to the s eed of the press at all times when running t rough the main rheostat. In spite of this fact the several rheostats 18 can be turned to change the speed of their motors 13, or any of them can be cut out and yet the others can be run without running the press.

With this arrangement a distinct advantage can be secured because of the ability to drlve the fountain cylinders controlled by the ordinary controlling device for theA press controlled frornthe main rheostat. In this case the fountain cylinders are driven at a speed proportionate to the speed of the motor for runnin thepress. If that chan es, the speed of the ountain cylinders will can e with it because both are under the control o the main rheostat.

A. switch 24 is provided for connecting the armatures of one or more of the fountain driving motors directly to the direct current supply instead of to the generated current. This serves the purpose of rotating them independently of the press, or while the press is at a standstill. It also serves as an emergency source of current sup ly in case the generator fails to function or any reason.

.An individual snap switch 25 may be used to disconnect any of the motors from the The fountains can be run independently, as stated, while the press is not running to properly prepare the ink of the ink drums before any paper is fed throu h. The fountains in any given number o units may be controlled independently or collectively from A a single point.

Although I have illustrated and described only one form of the invention I am aware of the fact that modifications can be made therein by any erson skilled in the art without departing rom the scope of the invention as expressed in the claims.

Therefore, I do not wish to be limited in these respects but what I do claim is:

1. In a printing press, the combination with a main motor for driving the press, and a plurality of ink fountain cylinder motors, of a generator driven by the main motor,

and means for conducting the current from the generator to the ink fountain cylinder motor armatures to drive them.

2. In a printing press, the combination with a main motor for driving the press, and a plurality of ink fountain cylinder motors, of a generator driven by the main "motor, means for conductin the current from the generator to the ink ountain cylinder motor armatures to drive them, a source of direct current connected withv the fields of the ink fountain cylinder motors, and individual regulating devices for said fields.

3. In' a printing press, the combination with a main motor for driving the press, and a plurality of ink fountain cylinder motors, of a generator driven by the main motor, means for conductin the current from the generator to the ink ountain cylinder motor armatures to drive them, a source of direct current connected with the fields of the ink fountain cylinder motors, and means for supplying the field of the generator from said source. A i

4. In a printing press, the combination with a main motor for driving the press, of a generator connected With the motor to be driven thereby, a series of ink fountain cylinder operating motors having their armatures connected with the generator to be driven by the current therefrom, a source of direct current connected Vwith the fields of said fountain cylinder motors, and means by which the armatures of the fountain cylinder motors can be connected with said source of direct current when desired.

5. In a printing press, the combination with a main motor for driving the press, of a generator connected with the motor to be driven thereby, a series of ink fountain cylinder operating motors all connected with the generator to be driven by the current thereof, a source of direct current connected with the fields of said fountain cylinder motors and with the field of said generator, a switch in the line from the generator by which the armatures of the fountain cylinder motors can be connected with said source of direct currentwhen desired, and a rheostat connected with said source of current to control the field of the generator.

6. In a printing press inking mechanism, the combination with a fountain, and a motor mounted on the fountain, of means for connecting said motor directly with the inking mechanism to drive the same, a main motor ing with and driven by the worm, and a fountain roll constituting a part of the inking mechanism connected with said worm wheel to operate therewith.

In testimony whereof I have hereunto afxed my signature.

ISIDOR TORNBERG.

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