| 摘要 |
In a shuttleless loom, the movement of the weft conveying grippers is controlled by straps moved forward and backward by gearwheels mounted at the loom shed ends, the peripheral teeth of said gearwheels engaging with longitudinally aligned slots provided at the centre of the straps. The engagement between the straps and the gearwheels is constant and precise over a wide arc of each of the wheels, thanks to the guiding action (extending over the whole of said arc) provided by a narrow belt endlessly wound about guide pins and engaging with its slots the gearwheel teeth to act on the lateral portions of the strap. |
