Specification:
A rack and pinion and pointer assemble provides fine adjustment of needle or cone tip to sample.
It consists of a vertical pillar mounted on a base provided with leveling screws.
The head, together with dial plunger rod a cone (or needle) slides on a pillar and can be clamped at any desired height.
The dial is graduated in 400 1/10 and the millimeter subdivisions and the needle pointer against figures makes easy reading.
Supplied with a bitumen penetration needle, ring weight one each 50 gms. and 100 gms. two sample containers.
It incorporates a clutch mechanism.
Which makes reading of penetration and subsequent resetting a simple and accurate operation.
