Automatic lithographic plate developing machine

Claim 2

An automatic lithographic plate developing machine comprising: a. a frame, b. container means mounted on said frame, c. conveying means for feeding through the container means a lithographic plate having an exposed face, d. means for actuating said conveying means, e. a cylindrical member mounted within said frame, f. a peripheral portion of said cylindrical member lying in the path of movement of the lithographic plate for engaging the exposed face thereof, g. means for applying a developing solution to the peripheral portion of said cylindrical member, h. means for rotating said cylindrical member around an axis substantially parallel to the lithographic plate for applying and frictionally working the developing solution into the exposed face of the lithographic plate, i. means for effecting axial oscillation of said cylindrical member whereby multi-directional movement of said cylindrical member is effective to ''''work up'''' an image on the plate, and j. means for applying a gumming solution to the developed surface of the plate, k. said means for applying the gumming solution comprising a trough mounted within said frame, l. a cylindrical member rotatably mounted on said frame, m. a portion of the cylindrical member periphery being within said trough and in contact with the gumming solution, n. another portion of the cylindrical member periphery lying in the path of movement of the lithographic plate for applying a gumming solution coating to the lithographic plate surface; and o. power means for rotating said gumming solution cylindrical member to progressively apply gumming solution to different peripheral portions thereof.

Claim 3

An automatic lithographic plate developing machine comprising: a. a frame, b. container means mounted on said frame, c. conveyiNg means for feeding through the container means a lithographic plate having an exposed face, d. said conveying means including a series of rollers comprising a lower feed drive, e. a series of rollers comprising an upper feed drive, f. said upper feed drive rollers being above, and in opposed relation to, the lower feed drive rollers, g. means for vertically adjusting rollers of said upper feed drive, h. said means for vertically adjusting the rollers of said upper feed drive comprising bearings for said cylindrical member pivotally connected at one side to said frame, i. a swing bolt threadedly engaged with said frame above each bearing, j. the lower terminal of said swing bolt being engaged with the opposite side of each of said bearings about the pivotal connection to said frame, for effecting vertical movement of said bearings and the rollers extending therebetween, k. means for actuating said conveying means, l. a cylindrical member mounted within said frame, m. a peripheral portion of said cylindrical member lying in the path of movement of the lithographic plate for engaging the exposed face thereof, n. means for applying a developing solution to the peripheral portion of said cylindrical member, o. means for rotating said cylindrical member around an axis substantially parallel to the lithographic plate for applying and frictionally working the developing solution into the exposed face of the lithographic plate, and p. means for effecting axial oscillation of said cylindrical member whereby multi-directional movement of said cylindrical is effected to ''''work up'''' an image on the plate.

Claim 4

An automatic lithographic plate developing machine comprising: a. a frame, b. container means mounted on said frame, c. conveyiNg means for feeding through the container means a lithographic plate having an exposed face, d. said conveying means including a series of rollers comprising a lower feed drive, e. a series of rollers comprising an upper feed drive, f. said upper feed drive rollers being above, and in opposed relation to, the lower feed drive rollers, g. means for vertically adjusting rollers of said upper feed drive, h. said means for vertically adjusting the rollers of said upper feed drive comprising bearings for said cylindrical member pivotally connected at one side to said frame, i. a swing bolt threadedly engaged with said frame above each bearing, j. the lower terminal of said swing bolt being engaged with the opposite side of each of said bearings about the pivotal connection to said frame, for effecting vertical movement of said bearings and the rollers extending therebetween, k. means for actuating said conveying means, l. a cylindrical member mounted within said frame, m. a peripheral portion of said cylindrical member lying in the path of movement of the lithographic plate for engaging the exposed face thereof, n. means for applying a developing solution to the peripheral portion of said cylindrical member, o. means for rotating said cylindrical member around an axis substantially parallel to the lithographic plate for applying and frictionally working the developing solution into the exposed face of the lithographic plate, and p. means for effecting axial oscillation of said cylindrical member whereby multi-directional movement of said cylindrical is effected to ''''work up'''' an image on the plate.