Abstract: The two-phase gripper loom or weaving machine comprises two loom units arranged adjacent one another. Each of their heald frames can be actuated by a heald frame positioning device with a phase shift of 180 angular degrees. Each heald frame positioning device is associated with a related one of the loom units. There is arranged between the common main shaft of the machine and the two rotary shafts of the two heald frame positioning devices a clutch drive for selectively individually connecting or coupling one or the other rotary shaft with the main shaft of the machine or with an auxiliary drive. This enables, during standstill of the machine, to bring the open weaving shed of one or the other loom unit into a closed shed position until the gripper loom is restarted, prior to which restarting the closed weaving shed is brought back again into the open shed position.

Abstract: The invention refers to a brake for the main shaft of a loom in which in the transmission of the energy between the driving motor and the main shaft a disconnectable friction coupling controlled by supervisory members for the weaving process is interposed, which has a slidable pressure-piece which in one extreme position, with the weaving process in order, preserves frictional engagement between the main shaft and the driving motor and which in the other extreme position, in the case of disturbances in the weaving process, produces frictional engagement between the main shaft and a brake rigidly connected to the machine frame.

Abstract: A warp beam bearing for a loom which includes a projecting arm carried on each side of the loom frame. A guide surface is provided on each of said arms for receiving a shoe which has an arcuate surface provided thereon. A cylindrical sleeve is detachably secured to each end of the warp or loom beam for supporting said loom beam in said arcuate surfaces of said shoe. A stop surface engages one side of the cylindrical sleeve for properly positioning the beam on the loom. A pivotal spring biased clamp engages the other side of the cylindrical sleeves for pressing the sleeves against the stop surface when said beam is in a running position. A low frictional surface is provided on the clamp where the clamp engages the cylindrical sleeve. In removing the beam from the loom the clamp is pivoted out of engagement with the cylindrical sleeve and the shoe is shifted along the guide surface to a remote position wherein a truck can lift the beam.