US2273669A - Sectional inking roller for printing presses - Google Patents

Description

Feb. 17, 1942. R. 1 sTUMPF 2,273,669

- sEcTIoNAL INKING ROLLER FOR PRINTING PREssEs Filed Feb. 28, 1941 INVENTOR /Z I? ATTORNEYS Patented Feb. 17,1942

SECTIONAL INKING ROLLER FOR PRINTING PRESSES Russell L. Stumpf, Springfield, Ohio, assignor of one-half to Louis J. Stumpf, Springfield, Ohio Application February 28, 1941, Serial No. 381,099 5 claims. (ci. iol- 205) This invention relates to sectional inking rollers for printing presses of the multi-color type.

In multi-color printing presses it is the practice to form the inking surface of both the plate rollers and ink distributing rollers` in sections, one section for each compartment in the ink font, it being understood that the compartments contain inks of different colors.

One of the objects of the invention is to provide a sectional inking roller, the sections of which may be readily removed after wear and replaced with new sections.

A further object of the invention is to provide a sectional roller, the sections of which may be readily secured in any desired position on the roller shaft to adapt the sections to conditions as to color printing of anyissue of the publication which is being printed.

Another object of the invention is to provide a sectional roller, the sections of which may be readily adjusted to vary the space between adjacent ends of the sections.

A further object of the invention is to provide an arrangement by which the different sections of the roller may be readily reversed so that the spaces between adjacent sections may be varied;

In the accompanying drawing:

Fig. 1 is a View partly in longitudinal section and partly in elevation, with parts of the elevation broken away and shown in section, of an inking roller embodying the improvements.

Fig. 2 is an enlarged longitudinal sectional view of one of the sections of the roller before it is mounted upon the roller shaft.

Fig. 3 is an enlarged end View looking from the left in Fig. 1.

Fig. 4 is an enlarged end View looking from the right of Fig. 1.

Fig. 5 is an enlarged section on the line 5-5 of Fig. 1.

Referring to the drawing, there is shown in the present case two full sections and two partial sections of an inking roller, although it will be understood that any desired number of sections may be employed and that these sections may be all of the same length as shown or of different lengths to suit conditions, the lengths of the sections varying preferably from 6 to 221/2. Each of these sections has an outer inking surface indicated respectively at I, 2, 3 and 3. This inking surface may be formed of synthetic rubber,`soft vulcanized rubber, printers roller composition or of any other suitable material. The

composition or other material is moulded or.

otherwise mounted upon a metallic sleeve 4, the

VI I) periphery of this sleeve in the present case being preferably formed with a plurality of annular grooves 4', as shown in Fig. 2, in which the inking material becomes embedded to hold the material against slippage inan endwise direction.

Each end of each sleeve is provided with a bushing 'I and 8 preferably of metal, the bushings being permanently connected with the sleeves preferably by sweating, the diameter of the bore of each sleeve being slightly enlarged at its ends so as to form shoulders to properly position the bushings. One of the bushings of each section, such as the one I is formed with an extended part shown in the present case as an annular flange 9 having a threaded aperture to receive a set-screw IU for the purpose to be explained, while the other bushing 8 has its outer end preferably ush with the outer end of the inking surface, or at least extending no appreciable distance therebeyond.

The shaft of the roller is indicated at II, each end of the shaft preferably having a reduced portion I2 to form a` handle, these reduced portions having extending therefrom trunnions I3 which are rotatably journalled in suitable bearings (not shown) in the press in the usual way. The shaft is formed with a longitudinal keyway I to receive a key I4 which is permanently secured to the shaft by a plurality of screws I5. Each of the bushings 'I and 8 is also provided with a longitudinally extending keyway I and 8' to receive this key so as to connect the bushings and hence the inking sections 3 and their sleeves 4 with the shaft when the parts vare assembled. After the sections have been slippedupon the shaft the set screws are tightened against the key so as to hold the sections against endwise movement.

By this arrangement it will be seen that when worn the sections may be readily removed and replaced with new sections of -suitable length and it will also be seen that in the event it is desired to decrease the space between adjacent ends of any two sections, as is sometimes necessary, this is readily accomplished by reversing an intermediate section so that the unflanged bushing 8 of one section will be adjacent the unflanged bushing 8 of another section. In the example of sectional rollers shown in the drawing this would be accomplished by reversing the left hand section and also an intermediate section adjacent thereto or the right-hand section and intermediate section adjacent thereto.

Having thus described my invention, I claim:

1. In a sectional inking roller, a shaft, a plurality of inking sections, each section consisting of a sleeve, a covering of ink-applying material on the outer surface of said sleeve, a bushing in each end of said sleeve and connected therewith, one of said bushings extending no substantial distance beyond the corresponding end of said sleeve, the other bushing having an extended part projecting beyond said sleeve, a key secured to said shaft, each of said bushings having a keyway to receive said key to hold said bushing connected with said shaft to rotate therewith, and means carried by said extended part to engage said key to hold said section against endwise movement on said shaft.

2. In a sectional inking roller, a shaft, a plurality of inking sections, each section consisting of a sleeve, a covering of ink-applying material Von the outer surface of said sleeve, a bushing in each end of said sleeve and connected therewith, one of said bushings extending no substantial distance beyond the corresponding end of said sleeve, an annular flange formed on the outer end of the other bushing, a key secured to said shaft and key-ways in said bushings to hold said bushings connected with said shaft to rotate therewith, and means carried by said flange to engage said key to hold said sections against endwise movement on said shaft.

3. In a sectional inking roller, a shaft, a plurality of inking sections, each section consisting of a sleeve, a covering of ink-applying material on the outer surface of said sleeve, a bushing in each end of said sleeve and connected therewith, one of said bushings extending no substantial distance beyond the corresponding end of said sleeve, the other bushing having an extended part projecting beyond said sleeve, a key secured to said shaft and key-ways in said bushings to hold said bushings connected with said shaft to rotate therewith, and a set-screw carried by said extended part to engage said key to hold said section against endwise movement on said shaft.

4. In a sectional inking roller, a shaft, a plurality of inking sections, each section consisting of a sleeve, a covering of ink-applying material on the outer surface of said sleeve," a bushing in each end of said sleeve and connected therewith, one of said bushings extendingy no substantial distance beyond the corresponding end of said sleeve, the other bushing having an extended part projecting beyond said sleeve, a key seated in a shallow groove in said shaft, screws for connecting said key to said shaft, a key-way in each bushing to receive said key to hold said bushings connected with said shaft to rotate therewith, and a set-screw carried by said extended part to engage said key to hold said section against endwise movement on said shaft.

5. In a sectional inking roller, a shaft, a plurality of inking sections, each section consisting of a sleeve, a covering of ink-applying material on the outer surface of said sleeve, a bushing in each end of said sleeve and connected therewith, one of said bushings extending no substantial distance beyond the corresponding end of said sleeve, the other bushing having an extended part projecting beyond said sleeve, a single key formed separately from the shaft and secured to said shaft and common to all of said sections, a key-way in each bushing to receive said key to cause said bushing to rotate with said shaft, and means carried by said extended parts to engage said key to hold said sections against endwise movement on said shaft but permit the adjustment of said sections with respect thereto.

RUSSELL L. STUMPF.

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