Apparatus for measuring unknown time intervals by mechanical means

GPHYSICS G04Horology G04FTIME-INTERVAL MEASURING

G04F7/00Apparatus for measuring unknown time intervals by mechanical means

G04F7/02by measuring the distance of fall or the final velocity of a falling body G04F7/04using a mechanical oscillator G04F7/06running only during the time interval to be measured G04F7/062with reset mechanisms G04F7/065with start-stop control arrangements G04F7/067with a single push-button or actuation member for start-stop and reset G04F7/08Watches or clocks with stop devices G04F7/0804with reset mechanisms G04F7/0809with single hammers G04F7/0814with double hammer G04F7/0819with triple hammer G04F7/0823with couplings between the chronograph mechanism and the base movement G04F7/0828acting in the plane of the movement G04F7/0833acting perpendicular to the plane of the movement G04F7/0838involving a tilting movement G04F7/0842with start-stop control mechanisms G04F7/0847with column wheel G04F7/0852with member having a rotational two-way movement G04F7/0857with single push-button or actuation member for start-stop and reset G04F7/0861actuated by other than push-buttons G04F7/0866Special arrangements G04F7/0871with multiple chronograph functions G04F7/0876Split-time function G04F7/088with display of fraction of seconds G04F7/0885Modular constructions involving interchangeability with one or more chronograph modules on a single base movement G04F7/089indicating measured time by other than hands G04F7/0895with a separate barrel for the chronograph functions G04F7/10Means used apart from the time-piece for starting or stopping same