vacuum pump

This will give a hollow branch which may be cut off at any desired point, and is then ready for connection to the vacuum pump.

The straight part of the side tube is then constricted ready for fusing off and the whole affair is placed on the vacuum pump.

From the point of romance, the world may lose; the vacuum pump cannot vie with the pretty milkmaid of the songs.

I merely removed the air from the jar with a vacuum pump and the little creature passed out of the picture very quickly.

This is kept hot, and whatever moisture is in the rubber is either evaporated or sucked out by a vacuum pump.