I don't know how thief proof this would make your car since it only takes unscrewing the three cover plate screws to defeat it, plus you can no longer use your foot to "Kick" the engine from battery to mag or mag to battery. I had it installed for a while on our 1915 pickup roadster and missed being able to use my foot on the stock Ford key.
"it only takes unscrewing the three cover plate screws to defeat it" ???
Sorry Jay - Could'nt resist
When all else fails, read the . . .
Here is the patent
Leo G. Stepzinski
Peoria, Illinois
Key Controlled Switch
Patent number: 1289298
Filing date: Jul 24, 1915
Issue date: Dec 31, 1918
http://tinyurl.com/7f32qeb
http://preview.tinyurl.com/7f32qeb
Regards
Art
You're right on Art. I found the best way to understand how some carburetors work is to read their patent information - it's all explained there !!
Garnet
Interesting. I have one similar to that. I wondered why the odd butterfly piece inside. That may be it. But mine would require some re-working to make it even remotely tamper proof. I want to put it on the boat-tail because there is nothing else to lock it up. Yeah, right. Like any non model T person could figure out how to start it, let alone put the transmission in gear.
Thank you, Jay, and Art.
Drive carefully, and enjoy, W2