TIMING DEVICE

摘要

A device for measuring the time elapsed between zero velocity and a predetermined velocity of a vehicle incorporating: an electrical timer connected in circuit with the vehicle battery and energized and deenergized by the operation of a timer switch; a speedometer having a velocity scale and an electrically conductive velocity indicating needle in circuit with said battery; a switch control apparatus having a switch closing contact mounted adjacent "zero" on the velocity scale in the path of needle movement and a switch-opening contact slidably mounted for presentation adjacent with the predetermined "velocity" and within the path of needle movement; so that upon commencement of acceleration said needle engages said switch-closing contact for closing a circuit to close said timer switch and energize said timer; and upon attainment of said predetermined velocity, said needle engages said switch-opening contact for closing a circuit to open said timer switch and deenergize said timer, thereby determining the elapsed time between the velocity differential.