Improvements in or relating to Cylinders for Printing, Embossing, Calendering and like Operations Requiring Rolling Pressure

• Main Author: WILLIAM LOVE
• Format: Patent
• Language: English
• Published: 16.01.1908

1469. Love, W. Jan. 19. Cylinder machines with plane printing-surfaces; rotary machines.-Relates to cylinders for printing, embossing, calendering, &c. constructed with a view to obtaining an even pressure along the line of contact between coacting cylinders. The cylinder comprises a shaft a provided with two bearing- surfaces b', either in the form of separate collars, or as shown in Fig. 3 integral with the shaft, which support a sleeve d formed with corresponding internal bearing-surfaces b . This sleeve d is provided with four bearing-surfaces e which are located at the points where the tube d would receive equal deflexion by a load equally distributed along the cylinder, and which fit tightly into corresponding internal surfaces e on the external cylinder g. The ends of the cylinder are formed by driving-plates h, Fig. 6, keyed on the shaft and formed with teeth k adapted to engage recesses in the cylinder g. Cover caps n may be fitted to both ends. To provide for steam-heating the cylinder, the shaft a is formed with passages o, o , which communicate by way of tubes q with the annular space r, the bearing-surfaces. e being traversed by holes s. In a modification, the outer cylinder is supported on eight bearing-rings. The inner tubes or sleeves may be made of joists of I-section. In a modification, shown in Fig. 10, in which tight joints are formed between each pair of sleeves or cylinders, each end of the shaft is screwed and fitted with a nut 2 which bears against a split ring 5 engaging a conical portion on the shaft a. Surrounding the ring 5 are two split bearing-rings 7, 7, between which and a shoulder 4 on the shaft is a distance ring 4, recessed internally to accommodate the ring 5. The bearings for the outer cylinder consist of split rings 8 sprung over the ends of sleeves 9, 9b, which slide on the tube d. The outer sleeves 9 are coned at their inner ends and are adapted to be driven into the sleeve 9 by a coned sleeve 11, operated by a nut 12. The shaft a is journaled in movable bearings a . When separate collars b, Fig. 1, are employed to support the sleeves forming the cylinder, they may be mounted on rings n encircling a flanged ring v rigidly secured to the axle a or sleeve, the collar b and ring u being adjustable respectively by screws to, x.