Machinery and tools designed for the manufacture of cryo containers

One of the most difficult operations in the manufacture of cryo containers was the winding of super insulated blanket on the inner vessel.
One roll of aluminum foil and one roll of paper was mounted on a frame 180 degrees apart. This frame had provision for adjusting the tension to release paper and foil at required rate. The frame was connected to a gear box through a drive to rotate at a slow speed. Separately from this frame a shaft was mounted on another drive rotating at a slow speed. This shaft can be tilted at various angles up or down. The inner vessel was mounted on this shaft.
By varying the inclination and the speed of the shaft one can vary the pitch at which foil and paper can be wound on the inner vessel of the cryo container. By varying the tension we can wind the paper and foil tightly or otherwise. This machine was a marvelous piece of development.
We needed one more tool.This tool should allow the assembled cryo container to be evacuated and seal the evacuated vessel. He designed a gadget which met these conditions.
The cryo containers required heating to accelerate degassing and remove moisture in the space between inner vessel and the outer vessel. A system was developed to heat and evacuate a number of cryo containers simultaneously. Heating temperature was controlled by a number of thermocouples. During evacuation vacuum was monitored continuously.
With all these systems in place we manufactured and sold hundreds of cryo containers to various customers.
This development gave us confidence to enter a new field of transporting liquid nitrogen and liquid oxygen over long distances without much loss.