Spear Pointed Gauge & Seam Checking Micrometer
A Hand Die Flanger | Can Hand Tester | 7 Spear Pointed Gauge & Seam Checking Micrometer
A Single Pocket Water Tester | Body Beader | Treadle Embossing Press
This is an instrument for determining the vaccum in an open top can for processed food. It can also record pressure developed in the can due to spoilage or hydrogen formation.
Gauge Operation
The rubber gasket of the testing gauge is placed against the flat centre of the double-seamed end. The can is then pierced by pressing down the instrument. Care should be taken to ensure that the gauge is not titled during the piercing operation as this may given an incorrect reading by permitting air into the can.
Gauge Specifics
A pressure of upto 30 psi and a vaccum corresponding to 30" column of mercury, can be read off the gauge.
Seam Checking Micrometer
This instrument is used for checking the seam thickness, seam length and countersunk depth of seamed containers. From these dimensions the quality of the seam can be ascertained. Body and cover hook can also be measured with the help of this instrument.
Micrometer Specifics
The principle f operation is identical to that of a normal micrometer, but the shape and the jaws are designed for this specific purpose. The seam is cut open in the prescribed manner and the required measurements made.
Micrometer Operation
The least count of the instrument is 0.001".