Screen tensioning apparatus.

摘要

A fabric tensioning apparatus for the screen (26) of a screen printing press, comprises telescoped inner and outer members (25 and 30) which can be urged apart by an inflatable air bar (32). The outer member (30) is mounted on legs (81, 82) slidable over a horizontal surface (84) and with the axis of outward movement of the inner member (25) relative to the outer member (30) inclined upwardly relative to the horizontal surface (84). The screen fabric (26) is secured to the outer member (30) while a frame (18) over which the fabric (26) is to be tensioned is secured to the inner member (25). On inflation of the air bar (32) the inner member (25) moves outwardly and upwardly relative to the outer member (30) whereby the fabric (26) is tensioned over the frame (18) which is also urged into intimate contact with the fabric (26).