A smaller bearing surface is now cast into the bed, toward the tote.
Two circular bosses, to receive the screws are located just ahead of this bearing surface, toward the mouth.
That would be with the one piece lateral adjuster tip That started at Type 6 1888-1892.
It also had 3 patent dates on it: 2-8-76, 10-21-84, and 7-24-88 By type 8 only the last patent date remains 7-24-88 That is what we have, so it look like it is Type 8 and above rog receiver undergoes a major redesign.
Well, no such thing as "definite" but definitively "pretty sure"...
I'll say it again, these Type Studies by collectors are only as good as based on the size of a large number of specimens, and the manufacturers never bother to help future collectors, they recycled often cut illustrations in their publicity and catalogs.
That meant re-using old images, not the current model, and were known to used up previous inventories of parts, wherever possible. The one we will be examining is the Bailey No 7 Jointer, I recently acquired.
That is part of my indoctrination of any "new" tool entering my temporary custody.
Since I am in the process of doing my usual stuff with my latest tool finds, I thought it would be a good time to go over with you about deciphering the various Type studies and how to use them to come up with an approximation of its vintage.The frog has a slot at its bottom (the portion nearest the mouth) to fit over the rib cast in the bed.So everything points to a Type 9, with the sole exception of the Pat no still present on the lateral lever (Type 8) no doubt a left over plane parts, making this plane probably early in the Type 9 production time frame of 1902-1907.I first quickly look for a major feature changes like the Frog screw adjustment (Type 10), First lateral lever (Type 5), Height of front knob, Frog receiver changes etc.In our case, we see that the first lateral lever came up at Type 5 1885-1888.