SIMMS-HUFF SYSTEM OFFERED FOR FORD CARS A one-unit Ford starting and lighting system has just been perfected by the Simms ... The fuse box and lighting switch combined are screwed to the heel board. ... A very explicit wiring diagram is supplied with each system, the simplicity of the installation helping its adaptation to the car. ... The Inland ring is cut spirally in a continuous ring for half its circumference, the ends automatically overlapping and forbidding any escape of gas.