Base ring

(Ordnance) a projecting band of metal around the breech, connected with the body of the gun by a concave molding.
- H. L. Scott.

See also: Base

References in periodicals archive ?
For this purpose, we artificially create a virtual hole in the central area of the network and accordingly find a shortest cycled path enclosing the hole, which serves as base ring and is used for generating the remaining ring based structure.
I wound up figuring out the proper curve empirically by suspending the base ring from a rope, pinning the south pivot point into place, and tracing on a piece of cardboard the arc created by moving the ring," he explains.
A key component of the patrol base ring was a former telecommunications tower on a 40m-high cliff to the west of the Musa Qal'eh wadi, known as Roshan Tower.
This allowed users to hitch an implement to old-style tractors without a clevis or, by removing the clevis, have a base ring hitch suitable for newer tractors with hammer straps.
Topics of the remaining 11 papers include minimal free resolutions of lexsegment ideals, tangent cones of numerical semigroup rings, topological Cohen-Macaulay criteria for monomial ideals, and the type of the base ring associated to a transversal polymatroid.
The 30-inch is a permanently mounted altazimuth telescope of 3 tons moving weight, turning on a base ring 10 feet (3m) in dia-meter--the azimuth 'bearing'--itself bedded on a foundation of 7 tons of high-specification reinforced concrete.
Bowl cannot be removed and it's fiddly to get under base ring to clean thoroughly.
Downtime is significantly reduced using the locking base ring that delivers faster changeovers of cutting heads and impedes costly impeller to head collisions.
69) The impact of Mycenaean drinking vessels is rather erratic and there was a marked tendency to favor the indigenous Base Ring cups (Fig.
Constructed from durable steel, they feature a nine-gallon Germ-Fighter plastic liner and a noncorrosive base ring.
Also where can I buy a base ring for a kerosene lamp with a #1 burner?
Since you don't want your lamp to topple over, you want the feet to be sturdy, so first double the wire over and bend it round the base ring.