[a. L. conformātor, agent-n. from conformāre to CONFORM; = F. conformateur (which is also used).] An apparatus for taking the conformation of that to which anything is to be fitted; e.g., the size and shape of the head in order to fit it with a hat; the pattern of the bust for an article of dress.
1874. in Knight, Dict. Mech.
1888. J. Ellis, New Christianity, ii. 53. While at a hat store not long since, the writer noticed that the measures of two heads by the conformateur were almost exactly alike, both as to shape and size.