1889 naval gun breech. 1:23 video:
Breech is correct, guaranteed.
Provided use of adequate design and materials, it wouldn't 'breach' when fired.
Those in area of impact might soil their breeches...
Rack and pinion to open chamber nice enough. I'm more impressed with mechanism and accuracy to rotate and lock interrupted threads, starting with Victorian era machines capable of that manufacture. The interrupted section appears to be about 20-30 degree rotation. I fully expected buttress, Dardelet, or some proprietary asymmetric thread, not ACME.
My little Browning Auto SA-22's have that feature in quarter-turn for take down and strip, using an external nut to headspace. I'd offer a youtube video, any short version used embarrassingly inadequate firearm vocabulary, among other irritations.
Not different than misnaming a sheet metal bender as a 'break', taken most often as a verb. A 'brake' and to 'brake' differ from shattering something, where 'brake' intones a more controlled action, or of course the noun.
Last edited by Toolmaker51; 02-17-2019 at 12:19 PM.
...we'll learn more by wandering than searching...
Ever wonder why with a million or more words in the English language there are so many instances where a single word can have not one or two but multiples of meanings , and too many words don't even know what they are nouns verbs additives etc.
I don't read or write Mandarin but I sometimes feel those folks may have gotten it correct 1 symbol ='s 1 word. although they often require a whole page of symbols to portray what a single word in the English language can do.
OH heck I give up
Never try to tell me it can't be done
When I have to paint I use http://kbs.justoldtrucks.com/
I'd like to know the origin of calling the tool a "brake". When you bend sheet, you create a break in its linearity. Perhaps "brake" is a long-time ago misspelling that has worked its way into modern usage. Further murkiness comes from the fact that "brake" was an archaic past tense of the verb "break".
Sorry for derailing the thread...
At least related to "trig" in some off-hand way:
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