31-10-2019, 03:05 PM
I've been trying to locate radius arms in the index cards. Can anyone tell me which section, as couldn't find from first search in the obvious places. There might be some different name for them.
I've been comparing what I think is a 1931 arm with a 1937 Girling ended one, and finding it difficult to see ANY difference in stub angle that I would assume existed. However, the earlier arm is marked 1A-4024, which is noted the same as BM112 in the early Ruby parts list, but may thus not conclusively be earlier than 1934 i.e. it could be that both have "low frame" angle.
Has anyone got an obviously early arm (provenance etc) which has similar 1A 4024/4025 markings, or are they marked as per the parts list BM112 and 113?
Has anyone compared arms and found the angle difference obvious when viewing in the correct, sideways-on plane?
I've been comparing what I think is a 1931 arm with a 1937 Girling ended one, and finding it difficult to see ANY difference in stub angle that I would assume existed. However, the earlier arm is marked 1A-4024, which is noted the same as BM112 in the early Ruby parts list, but may thus not conclusively be earlier than 1934 i.e. it could be that both have "low frame" angle.
Has anyone got an obviously early arm (provenance etc) which has similar 1A 4024/4025 markings, or are they marked as per the parts list BM112 and 113?
Has anyone compared arms and found the angle difference obvious when viewing in the correct, sideways-on plane?