US2027850A - Ink fountain back - Google Patents

Description

Jan. M, 1936.

H. A. w. WOOD INK FOUNTAIN BACK Filed July 7, 1932 2 SheetsSheet l Jan. 14, 1936. HA, WOOD 2,027,850

" INK FOUNTAIN BA'CK Fild July7, 1932 2 Sheets-Sheet 2 Z M637 enrfislfdse 700?,

Patented Jan. 14, 1936 UNITED STATES ATENT OFFICE INK FOUNTAIN BACK Application July 7, 1932, Serial No. 621,212

4 Claims.

This invention relates to an ink fountain back for a newspaper printing machine and the principal object thereof is to provide means by which the fountain screw adjustments throughout the whole length of the fountain blade can be arranged to be accessible in spite of the fact that the motor and its chain by which it drives the impression cylinder covers up one end of the press.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. l is a side view of a part of a newspaper printing press, shown mostly diagrammatically and illustrating the position of the motor, and

Fig. 2 is an elevation of the same showing the fountain screw adjustments.

This invention relates. to a printing press of a type in which the ink is brought up on a roller and the surplus is removed by a blade which is adjustable from point to point along its length, these adjustments being made by a series of plungers bearing on the blade. l-leretofore several types of adjustments have been used on these ink-removing blades, the simplest being a simple screw which bears down against the blade to press it toward the inking roller, using a blade resilient enough to spring away when the screw is backed off. This type of construction demands that the pressman be permitted to get close enough to the point of adjustment to enable him to regulate this simple screw. In cases where the fountain back is placed on the inside of the press, for the purpose of getting it out of the way and of getting the proper rotation of the ink roller, it has been customary to extend the regulating of these fountain screws to the two ends of the press, using either a bevel or spiral gear arrangement or a worm and worm wheel.

The general practice has been to place half the screws for each page width at one end of the press and the other half at the other. This permits the operator to stand first at one end of the press and then the other and operate these screws to regulate the color...

With the advent of the so-called unit drive which is particularly suitable for driving a newspaper printing press by a chain connection, it is desirable to locate the motor of course in the most convenient position. This position is such that the motor, the chain from the motor to the impression cylinder of the press, and the chain guard cover all one end of the press so that it is very difficult to get at the fountain adjusting screws on that end. This invention is devised to eliminate that trouble.

In the drawings is shown a portion of a printing press comprising the impression cylinders l0 and plate cylinders H and also a pair of ink fountains l2 and two series I 3 of rolls to distribute the ink to the plate cylinders on both sides.

The operating motor I4 is mounted below the deck and connected by a. chain IE to drive the deck in the usual way through a toothed Wheel on the shaft of one of the impression cylinders it. Around this chain of course is a guard Hi. It will be obvious that on the right-hand side, the fountain back I! is covered by the chain and its guard so that the proper adjustments cannot be made there or at least only with a great deal of difficulty. In order to eliminate this difficulty, the several screws l 8 are all led to one end of the press as shown in Fig. 2, that end being opposite the: drive end. In this way the operator can adjust all the fountain screws easily without any interference. from the chain and its guard and without changing his own position or walking around the press or having an assistant make the changes on the other side.

It will be understood of course that each one of the screws It operates, by suitable gearing, a single plunger 19 so that the pressure of these plungers, which are located all along the regulating blade 20, can be adjusted so that the edge of the regulating blade 28 will bear equally along the surface of the fountain roll 2| and thus deliver a uniform film of ink to the next roll of the inking mechanism.

In this way the most convenient method of mounting the motor can be used, the ink fountains can be located inside the press where they are out of the way and yet the regulating blades can be regulated without any interference on the part of the driving chains and without any inconvenience to the pressman.

Although I have illustrated and described only a single form of the invention, I am aware of the fact that modifications can be made therein by any person skilled in the art without departingfrom the scope of the invention as expressed in the claims. Therefore, I do not wish to be lim ited to all the details of construction herein shown and described, but what I do claim is:-

1. In a printing press, the combination with a pair of printing couples and inking mechanisms therefor comprising fountain rolls, of a motor ,for driving the press located below the inking mechanisms having a connection with the printing couples for driving them, a fountain blade for each of the fountain rolls adapted to be adjusted at different points along its length, a series of plungers for providing the adjustment, and a series of screws for operating said plungers, said screws all extending to the end of the press opposite that at which the motor is located.

2. In a newspaper printing press, the combination of a pair of printing couples, a motor located below the couples and at one end of the press and having a flexible drive to one of the impression cylinders directly to operate the press, a guard located over said flexible drive, a pair of ink fountains, one for each of the plate cylinders, each fountain having a fountain roll and a flexible fountain blade bearing thereon, a series of plungers engaging each blade near the point at which it bears on its fountain roll, a series of operating screws, one for each plunger for regulating the pressure of the several plungers independently, and means at the end of the press opposite said motor for operating each of said screws independently, said means being accessible from said opposite end of the press for regulation.

3. In a newspaper printing press, the combination of a printing couple, a motor located below the couple and at one end of the press and having a chain for driving the impression cylinder directly, a guard located over said chain, an ink fountain having a fountain roll and a flexible fountain blade bearing thereon, a series of plungers engaging said blade near the point at which it bears on the fountain roll, a series of operating screws, one for each plunger for regulating the pressure of the several plungers independently, and means at the end of the press opposite said motor for operating each of said screws independently, said means being freely accessible from said opposite end of the press for regulation.

4. In a printing press, the combination with a pair of printing couples and inking mechanisms therefor comprising fountain rolls, of a motor for driving the press having a connection with the printing couples for driving them, a 20 fountain blade for each of the fountain rolls adapted to be adjusted at different points along its length, a series of plungers for providing the adjustment, and a series of means for operating said plungers, said means all extending to the 25 end of the press opposite that at which the motor is located.

HENRY A. WISE WOOD.

Images