Dou"bler (?), n.

1.

One who, or that which, doubles.

2. (Elec.)

An instrument for augmenting a very small quantity of electricity, so as to render it manifest by sparks or the electroscope.

 

© Webster 1913


Dou"bler (?), n.

1.

A part of a distilling apparatus for intercepting the heavier fractions and returning them to be redistilled.

2. (Calico Printing)

A blanket or felt placed between the fabric and the printing table or cylinder.

 

© Webster 1913

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