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19th century compound dovetails

Posted: Sat Aug 26, 2017 9:30 pm
by boco
I have been out of the shop and away from the forum for a while, mainly due to work but also a trip we took to Canada a few weeks ago. While in the Calgary area we came across several 19th century buildings with timber walls constructed with striking compound dovetails that I thought might be of interest. The first two photos below are of the old North West Mounted Police barracks in Canmore, Alberta (built in 1893). The third photo is a detail of a school building from Gleichen (circa 1888) that is now part of the Heritage Park in Calgary.
Canmore NWMP.JPG
Canmore NWMP.JPG (111.29 KiB) Viewed 5265 times
Canmore NWMP joinery.JPG
Canmore NWMP joinery.JPG (141.53 KiB) Viewed 5265 times
Gleichen school joinery.JPG
Gleichen school joinery.JPG (225.35 KiB) Viewed 5265 times

Re: 19th century compound dovetails

Posted: Sun Aug 27, 2017 4:44 am
by dusty
What us intriguing is the fact that these were cut with such accuracy and with hand made tools.

Thanks for posting this.

You might want to watch the TV series "Barn Builders" if you like this sort to thing.

Re: 19th century compound dovetails

Posted: Sun Aug 27, 2017 8:53 am
by BuckeyeDennis
No onder those buildings are still still standing. To get those joints apart you'd have to unstack all the logs, starting at the top. Or else break the logs at the joint.

Re: 19th century compound dovetails

Posted: Sun Aug 27, 2017 10:37 am
by rpd
BuckeyeDennis wrote:No wonder those buildings are still still standing. To get those joints apart you'd have to unstack all the logs, starting at the top. Or else break the logs at the joint.
And any water that gets into the joint is directed down and out. ;) Also that region is very dry/ low humidity.

Re: 19th century compound dovetails

Posted: Sun Aug 27, 2017 10:46 am
by Hobbyman2
I think my Dad still has the old dowel maker my great grand dad .

The show barn builders is a great show ,,it amazes me those buildings can still be torn down and moved and put back original.

They are warm in the winter and cool in the summer .

Re: 19th century compound dovetails

Posted: Sun Aug 27, 2017 12:00 pm
by dusty
It also amazes me how, when a joint must be cut in replacement timber, how they achieve a mating joint with no fancy jigs (and with a chain saw no less).