Loom weaving e.g. papermaking screen, includes interchangeable gear following crank, to enable coarse changes in web width

摘要

An interchangeable planet gear (4) is connected after the crank drive linkage. Preferred features: The toothed sector (1) following the crank is reciprocated by it. The sector engages a toothed wheel (2), which is followed by the planet gear (4). After the crank, a fine adjuster is provided for web width, in which the stroke of the crank is transmitted to a swinging lever, and the spacing between the engagement point of the crank on the lever, and the pivoting axis of the lever, is adjustable. A reciprocating connecting rod of the crank is connected to the toothed sector, with adjustable spacing from its pivotal axis.