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.

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.

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.