Yes, you can find it on e.g. depatisnet.de as GB patent 142772. Funny thing is, I can't find a US patent with the actual drawing of a New Improved head. All 1920 Gillette patents (such as US1328024) have a description of this adjustability, but show (presumably) older designs, with no flat head table. The GB patent DOES have the flat table and almost fully resembles actual production models of the New Improved.
I can also mail copies of the GB patent to anyone requesting it by email... (this isn't strictly legal, but almost the same as getting it from depatisnet yourself...)