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Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
-saw, which passes through a hole in the work-table and saws a kerf in the work, which is moved about in any required direction on the table. The saw follows a scroll or other ornament, according to a pattern or traced figure upon the work. Fleetwood's scroll-saw. The band-saw is a scroll-saw, and operates continuously. See band-saw. Tapley's scroll-saw. The example, Fig 4768 (Fleetwood's), is operated by a treadle connected by a pitman a, one part of which slides within the othFleetwood's), is operated by a treadle connected by a pitman a, one part of which slides within the other, rendering it adjustable as to length to the friction-wheel b, which turns the smaller friction-wheel c and fly-wheel d. A pitman on the wheel c reciprocates the saw e, which is connected at each end to guides working in collars f g above and below the table on which the work is supported. Springs h i attached to the guides maintain the tension of the saw. Tapley's is operated by a treadle a which imparts rotation to the wheel b and an arm e having rollers at each end The saw is strained