A simple, manually operable screen printing apparatus is provided, which is particularly suitable for small scale, custom printing. The apparatus permits relative adjustment between the printing screen and the workpiece in a side-to-side direction, a forward and backwards direction, a vertical direction and angularly. The apparatus also provides for replacement of the work holder with those of different sizes, to accommodate different sized articles to be printed. In essence, the apparatus comprises a main frame having upright side frame members, printing screen holding arms protruding from the main frame and adjustably mounted on cross-members of the frame for lengthwise adjustment, screen clamps on the holding arms which will releasably and adjustably secure a printing screen to the holding arms for lengthwise and angular adjustment relative to the holding arms, and a work holder on another item of the frame, mounted in a vertically adjustable manner.

Screen printing apparatus

The portable hand-held manually operated dry printing apparatus (10, 500) comprises a frame structure (11, 501, 502), a handle portion (12, 13) connected to the frame structure, a dry printing unit (15, 535) mounted to the lower portion of the frame structure, an air convection passage (Fig.2) and a guide member (16, 503). The dry printing unit comprises a die member (215, 530) and a heat source (202, 530) for heating this die member. The air convection passage is located between the handle portion and the die member/heat source assembly. A ribbon holder (14) may be mounted on the top portion of the frame structure for supplying a dry printing ribbon (156), and a ribbon guiding system guides this ribbon. The guide member guides the die member toward the surface to be dry printed. This guide member is telescopically mounted on the frame structure between extended and retracted positions and is spring-biased (230, 236) toward the extended position.

Portable hand-held manually operated dry printing apparatus

A print-finishing press comprises a bed ( 5 ) for receiving a workpiece, a hydraulic ram mounted to effect relative movement between the bed and a press tool ( 9 ), and pressure control means for selectively pre-setting the hydraulic pressure applied to the ram to any of a number of predetermined levels.

Multi-station press machine

A stamping apparatus is provided for use in forming a composite multicolored indicia on a workpiece. The apparatus utilizes a single die in combination with a plurality of transfer ribbons of different colors and a rotatably mounted workpiece-supporting member whereby a plurality of multicolor impressions can be simultaneously made on the supported workpieces.

Don L Shofner

Papers

Bed and platen printer with ribbon inkers