The primary use for the swivel gun was during civil and revolutionary wars, the naval and privateering vessels kept these small cannonlike guns for firing wads of grapeshot or small lead balls from the top of the deck rail at crew members on deck on the opposing vessel and the guns were pin mounted to enable rapid transfer form port to starbord rail as needed as they were primarally defensive wepons at the time.
There were two types of these guns the first being a muzzleloader and the latter a breechloader however both had the same job with the difference being reload time.
As a rule these guns had a bore diamater of around one to one and a quarter inch and were flash fired with a few vairants having a fuse.
They were mostly made of brass or bronze with an iron barrel cast into them, weight was between 85 and 150 pounds depending on bore size and vessel placement.
An amusette is a light field cannon, or a stocked gun mounted on a swivel.
Swivel joints are used to keep pipes pressure sealed while allowing the joint to swivel with some intermittent vibration or movement. Anything that is prone to movement, vibration, or expansion should be connected with a swivel joint.
Gun shop, gun shows, catalogs, want ads.
That fishing lure already has a swivel. Please don't swivel that chair.
"The chair rotates on a swivel." =)
5/16 on average but your best taking the swivel to your hardware store because it depends on the manufacturer.
This can function as a tablet PC. That is, the screen can swivel completely around and the lid closed so that the screen is on the outside. The screen is a touch screen and can be used with a stylus.
Contact Michaels of Oregon. They have a cap that goes on the end of your action slide that has a swivel attachment on it. Ask them for the sling that has a loop in the end and you slide it over the end of your stock and it holds by the hand grip. You don't have to drill your gun.
The chair rotates on a swivel
Because it has to be free and swivel clear of the ground
buy swivel stud's and a sling. drill holes into the stock and put the studs into it. then attach the sling. (your gun might already have studs in it)
A boom microphone is a microphone on a boom which is normally on a headset. A swivel boom would be a headset microphone that can swivel.