American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 229
ill raise the scape wheel axis two anda half inches from the centre wheel axis, and theother wheels must be made proportionabiy larg-er, according to the number of teeth they contain. We all know what a difficult matter it is tomake a cutter that will cut a tooth of the pro-per shape; but when the… … regulators, will find the work will be greatlysimplified by making the wheels of a diameterproportionate to the number of teeth they con-tain, and for all practical purposes the cutterthat cuts or finishes the teeth of one wheel willbe sufficiently accurate for the others. If we make all the…
Clocks and watches
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