Abstract: A feed device for a corner finishing machine for finishing frames consists f a framework which supports the frames, a conveyor for longitudinal movement of the frames along the support plane and a pivot device to rotate the frames around a normal pivot axis to the support plane in the area of the finishing tools. In order to achieve reliable, careful support of the frames, the framework forms an inclined support, with a guide rail, interrupted in the area of the finishing tools, and the pivot device includes two support arms which fit into the break in the guide rail in their extended position. The arms can be pivoted up out of their extended position by an angle that corresponds at least to the greatest corner angle of the frames via a suitable drive.

Abstract: A welding machine for butt welding of plastic profiles is outfitted with profile clamping units (2, 3) capable of sliding in relation to each other, and a heat reflector (15) which can be introduced between the front surfaces of two profiles to be welded, whereby the clamping units (2, 3) comprise weld boundary blades (2b, 2f, 3b, 3f) aligned parallel to the profile front surfaces and mounted on the profiles.In order to enhance welding efficiency and produce precisely coordinated weld joints, the clamping units (2, 3) are designed to accommodate two superimposed profiles (U, O), and feature in addition to the external boundary blades (2b, 2f, 3b, 3f) an intermediate boundary blade (5, 6) insertable between the profiles (U, O), yielding elastically in the clamping direction of the profiles and moving along with the clamping units (2, 3) in the direction of displacement.