|
1918 South Bend 13" Model 34 backgeared, screwcutting lathe. This model was available either as a bench machine, or mounted on cast legs and with between-centres capacities of 20", 32", 44", 56" and 68", at prices varying between $256 and $315. The ground spindle, with a 3/4" bore, ran in adjustable phosphor bronze bearings and the carriage was provided with a (rather short) T slot on each arm to allow work to be clamped for boring and milling. Both the headstock and tailstock were No. 3 Morse taper and the tailstock barrel was of the self-eject type. As supplied the lathe could only cut threads from 4 to 40 t.p.i. but of course, by compounding the gears, many other pitches could be obtained. Power sliding and surfacing was fitted, driven by a splined screw and worm which left the leadscrew to be used only for generating threads. Standard equipment consisted of both large and small faceplates, two centres, fixed and travelling steadies, changewheels for screwcutting, spanners and a fast-and-loose countershaft assembly. The restricted list of options showed a swivelling milling slide and key-way cutting attachment, a set of raiser blocks to increase the capacity to 18" and, as a factory-fitted extra only, a taper-turning unit.
|
|