T~E Franklin ]nstltutc, is not responsible for the statements and opinions advanced by contributors to the JOURNAL.
POWER i I~AN< ~ilTI ING MECHANISM.* ON THE STRENGTH
OF THE TEETH OF WHEELS.
Br J. It. Com'En.
The object of this paper is to correctly report the existing rules and tbrraulm fi)r the strength of the teeth of wheels, to give all definite statements of the experiments upon which such rules are founded, as fully ~s the limited records at command permit, and, final]'y, by the use of like dimensions, to work out an example by each of the several formulm ibr the practical end. The example chosen fbr this purpose is considered to be a fhir one by several writers on this subject.
[n order to present in each rule the same general form, which is adopted for ready reference, and at the same time to not affect the integrity of its purpose, the notation h~s been changed to the initial letter of the part specified, and written rules agreeably to the above have been converted into formulm.
This method of presentation has been selected to show at a glance the precise elements of the wheel which enter into the make-up of the rule, and to give the result of each rule after complete working out of the conditions named.