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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 ...
Conical spiral with an archimedean spiral as floor projection Floor projection: Fermat's spiral Floor projection: logarithmic spiral Floor projection: hyperbolic spiral. In mathematics, a conical spiral, also known as a conical helix, [1] is a space curve on a right circular cone, whose floor projection is a plane spiral.
The axis of a cone is the straight line passing through the apex about which the cone has a circular symmetry. In common usage in elementary geometry, cones are assumed to be right circular, i.e., with a circle base perpendicular to the axis. [1] If the cone is right circular the intersection of a plane with the lateral surface is a conic section.
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.
Luer taper, a standardized fitting system used for making leak-free connections between slightly conical syringe tips and needles; Tapered thread, a conical screw thread made of a helicoidal ridge wrapped around a cone; Machine taper, in machinery and engineering; Mark Taper Forum, a theatre in the Los Angeles Music Center
A rare gold coin was donated to a Salvation Army Red Kettle in Washington, Pennsylvania, by an anonymous good Samaritan due to holiday foot traffic. Coin expert weighs in.
Wednesday's injury report brought good news for Philadelphia Eagles fans and fantasy football managers with DeVonta Smith on their roster.. The team listed the "Slim Reaper" as a full participant ...