US794487A - Printing-press. - Google Patents

Description

No. 794.487. PATENTED JULY l1. 1905.

' L. A. BRD.

PRINTING PRESS.

APPLIOATIDH Hum Arn.za,19o.

WITNESS/58' Aronfrs No. 794.487. PATENTED JULY 11, 1905.

' L. A. BRUD.

PRINTING PRESS.

APPLICATION FILED APR. 28,1903.

2 SHEETS-SHEET 2.

IN VEN T01? W/ TNESSES www ' A Tron/vers JNO. 794,487.

UNITED STATES Patented July 11, 1905.

LOUIS A. BROI), OF BROOKLYN, NEW YORK.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent No. 794,487, dated July 11, 1905. Application filed April 28, 1903. Serial No. 154,623.

1'0 @M w/wm/ it 11a/ty concern:

Be it known that I, LoUIs A. BRoD, a citi- Zen of the United States, residing in the borough of Brooklyn, county of Kings, city of New York, State of New York, have invented certain new and useful Improvements in Printing-Presses, of which the following is a specification, such as will enable those skilled in the art to which it appertains to make and use the same.

The object of this invention is to provide an antiset-oiior antismut attachment for printing-presses in which it is desired to print both sides of the paper at the same time and to dispense with the use of the usual oifset sheet now employed; and with this and other objects in view the invention consists in a printing-press constructed as hereinafter described and claimed.

rIhe invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which"- Figure l is a transverse vertical section of a printingpress provided with my improvement; Fig. 2, a section on the line 2 2 of Fig. l, and Fig. 3 an outside View looking in the direction of the arrow a; of Fig. 2.

In the drawings forming part of this specification I have shown at a one of the sides of the frame of a printing-press, and in the form of construction shown two impression-cylinders b and b2 are employed and two platencylinders c and c2, which correspond therewith, and in practice the-paper d to be printed is passed between these cylinders in the direction of the arrow d2. In passing between the impression-cylinder b and platen-cylinder c2 one side of the sheet Z is printed, and it is customary in practice to employ what is called a set-off sheet which is fed between the platen-cylinder'cz, and connected with this i supplemental frame e and passing through a stationary7 support e2 is a screw e3, and by turning said screw the supplemental frame e may be moved toward and from the platen-cylinder c2 according to the direction in which the screw is turned. In the upper part of the supplemental frame e, adjacent to the platencylinder c2, is a roller f, and a similar roller g is mounted in the lower` portion of said supplemental frame, and below the roller g is a powder-box g2, in which is placed a small powder-roller g3.

Rearwardly of and below the roller f is a transverse box t, in which is placed benzin or any suitable solution designed for the purpose hereinafter described, and passing through this box is a roller 7a2. In the upper portion of the box 71, isl a scraper t, and above said box and over the rear portion thereof are placed two rollers t' and 2, and below the box /t are two other rollers j' and jg.

Secured to the supplemental frame e at the top front portion thereof is a suitable receptacle 7c, designed to receive benzin or other suitable cleansing liquid, and in the bottom of the receptacle 7n is a feeder ft2 of cloth, wicking. or any other suitable material.

The shafts of the rollers t' and f in the supplemental frame pass through a slot a2 in the side of the main frame of the press, and these shafts are indicated at and f2 in Fig. 3 and are provided, respectively, with gearwheels 2* and f3, and when the supplemental frame c is in position for use, as shown in Fig. 1, these rollers are geared in connection with the shaft o3 of the 4platen-cylinders c2 by means of a gear-wheel c4, secured to said shaft, and a drive-chain c6.

It will be understood that the arrangement of the impression-cylinders and b2 and the platen-'cylinders c and c2 as herein shown and described is only for the purpose of illustration, and in practice these cylinders may be arranged in any desired manner and will be geared in connection and driven in the usual or any preferred manner, and my invention is not limited in any way to the location and arrangement of these cylinders.

In the operation of the press the cylinders IOO c, c2, and b2 are driven so as to feed the paper between the same in the direction of the arrow d2, and in this operation that side ofthe paper d adjacent to the impressioncylinder Z1 is printed, and in order to prevent the surface of the platen-cylinder c2 from smutting or blurring' this printed surface the said surface of the platen-cylinder c2 must be kept clean, and it is for this purpose that the supplemental frame 'e and its contained parts are provided. In practice an endless blanketbelt or similar device m is passed around the rollersfand g and down through the box b beneath the roller if and up between the rollers z' and 2 and between the rollers fand f2,

and as the parts of the machine are operated this belt is moved in .the direction of the arrow y, while the cylinder 02 is moved in the direction of the arrow e. In this operation of the parts the liquid cleansing material in the receptacle/ltl is fed onto the surface of the cylinder c2, and the blanket-belt m is continually moved in the direction of the arrow or arrows y and in a direction opposite to that of the cylinder c2, and the blanket-belt m bears on a large portion of the surface of said cylinder and completely removes therefrom all ink that may have adhered thereto from the paper d. In this operation the inl; or other material is removed from the blanket-belt m by passing the latter through the receptacle i and through or between the rollers z', 2, and j and f2 and the rollers g and g3, and in this operation the roller g3' applies a line powder to said blanket-belt, and the latter is thoroughly dry when it comes in contact with the surface of the cylinder c2.

By means of this construction it will be seen that all ink or other printing liquid adhering to the cylinder c2 is removed therefrom before the said cylinder revolves through a complete circle and that portion of said cylinder which comesin contact with the printed side of the paper Z is always kept clean.

By means of this construction I avoid the use of what is known as set-olf paper or supplemental sheets of paper which are passed between the cylinder c2 and the cylinder b2, and this is a great saving in expense, as well as time.

My invention is not limited to the exact details of the supplemental andmovable frame e nor to the exact means herein shown and described for moving the blanket-belt mover a part of the surface of the cylinder c2 nor to the means herein shown and described for cleaning the blanket-belt m, and many changes in and modifications of these features of my improvement may be made withoutdeparting from the spirit of my invention or sacriicing its advantages.

It will be understood that when it is desired to move the supplemental frame e away from the cylinder 02 the belt c must be disconnected and other gearing may be employed for the purpose of running or moving the blanket-belt m.

The blanket-belt m may be composed of any desired material, but is preferably composed of a suitable textile material.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. In a printing-press, the herein-described means for removing from the surfaceof a platen-cylinder ink which adheres thereto, consisting of a supplemental frame movable toward and from said cylinder, rollers mounted therein, and a blanket-belt mounted on said rollers and adapted to bear on the surface of said cylinder, and movable in a direction opposite to that of said cylinder, said supplemental frame being also provided with means for cleaning and drying said belt, substantially as shown and described.

2. In a printing-press, the herein-described means for removing from the surface of a platen-cylinder ink which adheres thereto, consisting of a supplemental frame movable toward and from said cylinder, rollers mounted therein and a blanket-belt mounted on said roller and adapted to bear on the surface of said cylinder, and movable in a direction opposite to that of said cylinder, said supplemental frame being also provided with means for cleaning and drying said belt, and with means for feeding onto the surface of said cylinder a cleansing liquid, substantially as shown and described.

LOUIS A. BROD.

Witnesses:

G. I. DEAN, C. H. ARTHUR.

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