spring needle

spring needle

[′spriŋ ‚nēd·əl]
(textiles)
References in periodicals archive ?
The spring needle shut-off design has the advantage of working automatically without intervention of operator, sensors, or external actuating devices.
Additionally, if the barrel is left unattended with heats on for an extended period of time, the spring needle shut-off design has the advantage of a built-in safety feature, in case the machine nozzle and/or injection barrel begin building pressure.