| 摘要 |
1482189 Selective printing MONARCH MARKING SYSTEMS Inc 15 July 1974 [5 June 1974] 05434/77 Divided out of 1482186 Heading B6F An ink roll comprises a hub 408 having an axial through-hole to receive a shaft 401<SP>1</SP> and a flexible resilient finger 421 extending into the hole to engage a groove 422 in the shaft, an extension 423 on the exterior of the hub spaced from the finger preventing insertion of the shaft at the wrong end of the hole. As shown the hub is in two parts snapped together by bead and groove 415, 416 to form an ink-tight seal. A porous ink-receptive roll 417 is received on the hub. |
