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The original patent filed by Hermann Gerlich in 1932 [6]. The squeeze bore concept was first patented by German inventor Carl Puff in 1903 [7] [8], even though the general principle was known already in 19th century and later applied in lighter fashion on Armstrong guns, on which only the muzzle yet not the barrel itself was of slightly smaller diameter (to cast off the sealing leather-bag ...
A tapered roller bearing is a unit that consists of both tapered raceways (inner and outer rings), and tapered rollers. The construction is intended for combination loads, such as dual acting axial and radial loads. The bearing axis is where the projected lines of the raceway combine at a common location to improve rolling, while reducing friction.
They have a sharply conical taper, and a smaller tip diameter as compared with pool cues. Typical carom cues are 140–140 cm (54–56 in) in length and 470–520 g (16.5–18.5 oz) in weight – lighter for straight rail, heavier for three-cushion – with a tip 11–12 mm (0.43–0.47 in) in diameter. [11]
The earliest expansion of "TIR" was total indicated run-out and concerned cylindrical or tapered (conical) parts, where "run-out" (noun) refers to any imperfection of form that causes a rotating part such as a shaft to "run out" (verb), that is, to not rotate with perfect smoothness.
The diameter of a conical bore varies linearly with distance from the end of the instrument. A complete conical bore would begin at zero diameter—the cone's vertex. However, actual instrument bores approximate a frustum of a cone. The wavelength produced by the first normal mode is approximately twice the length of the cone measured from the ...
Tapered - Primarily focused on the ability to take on axial loading and radial loading and how it does this is by using a conical structure enabling the elements to roll diagonally. Barrel - Provides assistance to high radial socks loads that cause misalignment and uses its shape and size for compensation.
A player using a cue stick to push a billiard ball forward to move an object ball A pool cue and its major parts. [1]: 71–72 [2]A cue stick (or simply cue, more specifically billiards cue, pool cue, or snooker cue) is an item of sporting equipment essential to the games of pool, snooker and carom billiards.
In manufacturing, a countersink (symbol: ⌵) is a conical hole cut into a manufactured object, or the cutter used to cut such a hole. A common use is to allow the head of a countersunk bolt , screw or rivet , when placed in the hole, to sit flush with or below the surface of the surrounding material (by comparison, a counterbore makes a flat ...