in cooperation with vehicle transmission or brakes; devices to facilitate switching to compressor action by means of other control devices, e.g. acceleration pedal or clutch

Full Title

Control of valve gear to facilitate reversing, starting, braking of four stroke engines > for switching to compressor action in order to brake > in cooperation with vehicle transmission or brakes; devices to facilitate switching to compressor action by means of other control devices, e.g. acceleration pedal or clutch