Abstract: An imprinting wheel which comprises a plurality of annular disc members coaxial with a shaft and axially spaced therealong to define radially outwardly facing spaces therebetween and connected for rotation in unison. Printing type elements of rubber-like material have a printing portion terminating in a printing face and a base portion provided with an inner circumferential surface and joining ears which extend laterally of the printing portion. Adjacent pairs of disc members have first coaxially aligned annular shoulders forming first annular steps in the disc member which respectively engage the ears of a type element with the base portion extending across the space and the printing portion extending radially outwardly in the space and beyond the peripheral edges of the disc members, the first shoulders preventing radial outward movement of the type element. Annular resilient members have inner and outer circumferential surfaces.

Abstract: A printing apparatus comprises a wheel having at least two spaced parallel sides. A type-supporting member is slidably mounted between said sides for radial movement, the wheel being open radially outwardly from this supporting member to receive a segment of rubber type. A spring of resilient, rubber-like material, in columnar form extends radially of the wheel between the sides, being secured at its radially outer end to the supporting member and at its inner end to the central portion of the wheel. Radially inward movement of the supporting member causes flexure of said spring which reacts with a corresponding force. A type segment mounted on said type-supporting member will be impressed against a surface to be imprinted depending upon the reactionary force exerted by the flexed spring.