Looks like you got the wrong calipers for the frame short reach one are whats needed .my youngs frame was opposite i needed long reach calipers when using 700c wheels .on the rear i just filed the caliper down to get the pad low enough to sit the pads on the rim.
I must confess i didnt realise short reach calipers were a thing in 1946. Anyone know any brands that made them?
I have some Strata calipers which are also to long.
When did weinmann brakes become available? Some of those are very short reach, 500s i think they're called. Also, 26x1/4 doesn't have to mean touring does it?
Looks like you got the wrong calipers for the frame short reach one are whats needed .my youngs frame was opposite i needed long reach calipers when using 700c wheels .on the rear i just filed the caliper down to get the pad low enough to sit the pads on the rim.