Had the front seats out of my '38 saloon today, to remove the last vestiges of the red shag carpeting that was in it when it came to me. I put in grey cut pile.
After struggling to get out the (4) 5-16"BSFx2 slotted countersunk screws holding each runner to the floor under one seat, I discovered I didn’t have to; the seats come out easily by just sliding them all the way back and lifting up at the rear.
So be sure your passenger doesn’t release the locking lever just at the moment you are rapidly accelerating.
I got all the screws out anyway and cleaned them up. They screw into a tapped plate under the plywood floor.
I didn’t see any evidence of the footrests that I’m supposed to have.
The runners or sliders are made by A.W. Chapman Ltd. of London SW6.
Patents 379902 and 384505 and the word LEVEROLL are stamped on them as well.
The first patent is for a seat slide and was assigned to Arthur William Chapman of Putney in 1932, but the second patent no. might be a mistake because it is about a Siemens-Schuckert electrical switch.
And from the “where there’s a will there’s a way” department, one of the steel spring rings has been replaced by a threaded electrical nut.