The New Zealand Railways Magazine, Volume 2, Issue 12 (April 1, 1928.)
New Plant
New Plant.
The new plant comprises a spring furnace, draw temperature furnace and banding furnace (all oil-fired), a trimming and nibbing machine, cropping machine, stripping machine, elliptical spring leaf forming machine, assembling and banding machine, spring testing machine (all these are operated by hydraulic pressure), a quenching bath (water cooled), two forges, and a steam hammer.