1907 Iver Johnson "Truss Bridge Flyer" Uncovered in PA

[Duchess]

What are the screws in the crank arm for?

 

[Iverider]

What are the screws in the crank arm for?

It keeps the bearing cone in position (see the holes in the bearing cone).

 

[Duchess]

Interesting. I've seen that before, but my Special Racer doesn't have it.

 

[Iverider]

From the 1906 Catalog. 1907 Catalog is not currently available, however, if you have one, please consider donating digital photos to the Catalog Project (link in my sig)

 

[Handyman]

Here is an interesting feature of this bike.........the seat adjusting "bolt" that runs through the rear seat stays does not have a nut to tighten it. The frame itself is threaded to accept the bolt. Not sure how many years Iver used this method.

Pete in Fitchburg

 

[Iverider]

Cool detail Pete. In 1909 a stepped carriage bolt that located into a keyway to prevent rotation was introduced which I've seen through the 1940s.

 

[fat tire trader]

Does this bike have a normal 1" diameter fork steerer tube?