Firewall Patent Data plate question

Let's recap: when the car got its engine at the factory, the engine was stamped with the frame number. The body was then put on the frame, and that number was never visible again, unless you were to lift the entire body off the frame again.

The engine/frame number eventually became the VIN. When now another engine was installed, no number that had any reference to the car or the paperwork was visible anymore. Unless you were to lift the body off the frame, you'd never know if that was the car that corresponds to the VIN on the title. Therefore, people either stamp a visible part of the frame (i.e., under the floorboards) with the VIN, or, less invasive, just mount a plate with the VIN on the firewall, so that the good DMV inspector doesn't have to order the car owner to remove the body from the frame. Does that make sense?

Here's the data plate I fabricated for my Model T Speedster:

TSpeedster-VIN-thumb.jpg


I should mention that registering a car to the engine number was common practice in the US in the 1950s and even early '60s. We had plenty of cars where the original engine was gone and no number existed anymore. A plate is an easy fix for that.
 
Last edited:
Let's recap: when the car got its engine at the factory, the engine was stamped with the frame number. The body was then put on the frame, and that number was never visible again, unless you were to lift the entire body off the frame again...

Actually, it was the other way around. The engine was stamped with a number when the engine was assembled. Then the frame was then stamped with the engine number when the engine was installed in the frame.

The rest is OK.
 
If that is an original number to the block,....it will be a 5 main cam block.
Also, the pads at the back of the block, were the flywheel housing / throttle
assemble bolts,...will have round pads.

This engine is about 60,000 engines after my 28 engine was built, and on my engine Ford already quit using the #2 and #4 cam bearings, so the factory rough turned the bearing surfaces undersize, just to make the cam easier to install. Sure seems like a dumb move to me. Why not just use up the parts as originally designed, then as parts are used up put together engines minus the 5 bearing cam and blocks with 5 bearings for the cams?:confused:
 
When you import a car into the UK and have it MOT tested they are often quite fussy about having a VIN plate, so I just bought one of the accessory ones and rivetted it to the bulkhead just for peace and quiet sake :)
 
On Mineva, I looked up one of the patent numbers, It was for an overhead valve set up, using rocker arms! Another was for the pivoting bell, at the front of the torque tube. All patent number plates "MAY" not be the same, depending on the production date of the car??? Minerva was an Early '30 Standard 45-B Coupe.
Bill W.
 
When I registered my last model A, they wanted a chassis number, I just plucked one out of a list .

I figured about 4 to 5 million A/s built, over here in NSW .... maybe 1000 still alive and registered in the state... that is about .0045 % chance that the number I picked would be known on the state records.

More chance of winning the lottery.

One old hot rod guy said he buys old blocks that will never see a car again and gets the number off them, and uses that for rego.

For .0045% chance, I could not be bothered .
 
Back
Top