"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
|6363879||Fan speed indicator|
A ceiling fan speed indicator having a detectable feature by which fan speed may be quickly ascertained by one of the human senses....
|4507549||Odometer reset mechanism|
A reset mechanism for an odometer is provided. The reset mechanism operates by means of manually rotatable structure which causes rotation of a reset shaft provided in an odometer. Means are provided for permitting manual rotation of the odometer reset sh...
|4009370||Counting or indicating ring device|
A counting or indicating ring device has indicating rings which are respectively provided with numerals or marks on a pitch circle thereof and are supported by a shaft, step advancing means spaced adjacent to one of the indicating rings to advance it step...