In equipment of the strip type, where the forward movement device of the record sheets is controlled by the clock mechanism, the speed of rectilinear forward movement must be at least 10 millimetres per hour.
I dtrealamh den chineál stéille, ina rialaítear feiste gluaiseachta chun tosaigh na leathán taifid leis an meicníocht chloig, ní foláir go mbeadh luas na gluaiseachta chun tosaigh dronlíní ionann ar a laghad is 10 milliméadar in aghaidh na huaire.