US725971A

US725971A - Lithographing and printing roller.

Info

Publication number: US725971A
Application number: US13689902A
Authority: US
Inventors: Aloys W Kling
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-12-29
Filing date: 1902-12-29
Publication date: 1903-04-21
Anticipated expiration: 1920-04-21

Description

No. 725,971. I

PA'.lEN-"l-ED AP R."21, 1903. A. W. KLING. LITHOGRAPHING, AND PRINTING ROLLER.

nf. INVENTQR.

H0 MODEL.

WITN 5555.5

( ZDR' UNITED STATES .PATENT OFFICE.

ALOYS W. KLING, ,OF DAYTON, OHIO.

LITHQGRAPHING AND' PRINTING ROLLER.

SIECIFICATION form-ing part of Letters Patent'No. 725,971, dated .April 21, 1903.

Application filed December 29, 1902. Serial No. 136,899. (No model.)

T0 all whom Yit 11/1/1/3/1007-1'06717/7.- i Be it known that I, ALOYS W. KLING, a citi'- zen of the United States, residing at Dayton,

in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Lithographing andrPrinting Rollers; and Ido declare the followingto be a full, clear, and exact description of the:

invention, such as will enable others skilled in the art to which it appertains to makerand use the same, reference being had to the ac-l companying drawings,and to the letters of reference marked thereon, which-form a part of this speciiication.

This invention relates to new and useful improvements in pneumatic rollers for litho- No. 710,327, issued to myself September 30,

The present improvements relate solely to. the interior construction; and the object is'i to so construct the interior inflatable member that when pressure is exerted on any particular portionl thereof the air willnot be driven or forced out of that particular part and crowded into other portions, but will be resisted by the surface of the core A in the line of such pressure. It is obvious when the inner iniiatable member consists of one annular chamber encompassing the circumference of the body or core of the roller that any pressure exerted on any particular portion of the roller will crowd the air into other portions of said roller, and will thereby render said roller impracticable for printing or lithographing purposes. A pneumatic roller has long been desired for thes'e purposes; but owing to certain defects due to the aforesaid causes such a roller has not been within the reach of practicable usage.

The difficulties thusbriely outlined above are overcome by constructing the interior in- Iiatable member in the form of a series of independent air-cells extending longitudinally throughout the length of the core or body of the roller, as will be hereinafter 'more fully described, reference being made to the accompanying drawings, of which- Figure l is a longitudinal sectional elevation of my improvedlpneumatic roller on the line y y of Fig. 2. Fig.l 2 is a section on the line @c of Fig. 1, showing the inner member inflated. Fig. 3 is a similar view showing the inner member collapsed or partially collapsed. Fig. 4 is a'section on the line y yof Fig. 1, showing the inner member iniiated.

In a detail description of my invention simif-lar reference characters indicate correspond- `in the drawings, the `primary object being to provide a desirable number of independent air-cells, each of which confines within it a suitable quantity of air which cannot be forced therefrom when pressure is applied to the roller; but, on the contrary, such pressure will be resisted by the core Aadjacent to the particular air-cell affected by such pressure. In constructing the interior in- `iiatalo'le member from the single sheet of rubber @longitudinal portions of said sheet are vulcanized or otherwise suitably secured at D tothe sleeve D', which surrounds the core A throughout its length, and thereby the series of independent4 air-cells B' are formed. This is at present found to be the most desirable way to construct these independent air-cells; but I do not wish to limit myself to any particular way of constructing such cells. 'In vulcanizing or otherwise securing the sheet C of rubber to the sleeve D the portions of said rubber sheet adjacent to the ends are not united to said sleeve D'. tion is necessary in order to provide passages a, through which the air-cells B are v,uniformly supplied with air frorna single air-valve b, located at one end of the roller. It is important that the air-cells B be supplied through a single air-valve b' in order that a uniform amount of air may be fed This construc- IOO to said cells, and thereby the air be equally distributed throughout the surface of the roller. The ends D of the inner inflatable member extend around the ends of the body or core A in proximity to the journals B and are made secure between said ends of said core and the ends E' of the outer casing E. The outer casing E consists of an elastic material, or, in the case of a lithographing-roller, the said casing may be leather or any other suitable material. One end of said outer casingissecured in position by means of screwsf, which pass through that end of the casing and through washers f and unite said end to the core. The other end of said outer casing is maintained in position by means of a circular Wire e of suitable thickness, which is embedded in the surrounding edge of said outer casing and passes around the journal B at that end of the core.

I do not wish to limit myself to this specific manner of uniting the ends of the outer and inner casings, as it is obvious a Variety of ways may be found practicable for this purpose; nor do I `wish, as before stated, to limit myself to the identical construction of the air-cells B'.

Having described my invention, I claiml. In a pneumatic roller of the type specied, a roller consisting of a core or body portion terminating in journals, a series of independent air-cells extending around said core parallel therewith and throughout the length thereof and providing a series of uniformly compressible and expandible air-cushions around said core, the ends of said air-cells eX- tending over the ends of the core and having passages for air to be introduced thereto through a single air-Valve, and an outer casing having its ends extending over the ends of the core of the roller and suitably united to said ends, substantially as set forth.

2. In a pneumatic roller for the purposes specified, a roller consisting of a core terminating in journals, a series of independent air-cells parallel with and extending around said core, air-passages through which air is uniformly supplied to said cells, a valve 1ocated at one end of the roller through which said cells are fed, an outer casing inclosing said air-cells, the ends of said outer casing being carried around the ends of the body or core of the roller, and means for uniting the ends of the outer casing and the ends of the air-cells casing to said body or core, substantially as set forth.

3. In a pneumatic roller for the purposes specified, an enlarged body or core terminating in journals, an inner elastic casing hav ing portions thereof united longitudinally to said core to provide a series of independent air-cells, passages between said air-cells by means of which said cells are uniformly supplied with air, the ends of said casing being extended around the ends of said core, a valve located at one of said ends, an outer casing inclosing said inner casing and having its ends extending around the ends of the core, and means for securing the ends of said in ner and outer casings to the ends of said core, substantially as set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

ALOYS W. KLIN G.

Witnesses:

R. J. MCCARTY, G. M. THEOBALD.