Abstract: On a traction machine motor wherein both a rotor (6) and a driving sheave (10) are attached on the rotating shaft (5), which is supported by both a motor bracket (1) and a bearing stand (2), and a motor frame (7) which supports the stator (8) is connected to the motor bracket (1), a gap (G.sub.5) is provided between a spigot joint (18) which is concentric with the rotating shaft (5) and an arcuate part (19) to indirectly measure a bias in the circumferential direction of the gap (G.sub.4).

Abstract: A linear motor primary driven by three phase electrical current is provided comprising a plurality of coils, each having a first and second lead, a plurality of laminations, and a plurality of "U" shaped conductive connectors, for electrically connecting the leads of the coils. The coils are arranged in poles, each pole having three phases, each phase having a like number of coils. The first and second leads of the coils of a particular phase are aligned in a first and second circumferential positions, thereby forming axial rows along the primary. Coils of a particular phase are connected by connecting leads in the same row with the "U" shaped conductive connectors.

Abstract: A tubular linear motor is provided having a secondary and a primary. The primary consists of a plurality of laminations and coils. Each lamination has a width with a plurality of notches removed therefrom, and a first end and second end, with a length extending therebetween. When the laminations are aligned, the notches collectively form channels which receive the coils. The plurality of coils are arranged in poles, each pole having a discrete number of coils corresponding to the number of phases in the current driving the linear motor, or a multiple thereof. A percentage of the coils corresponding to the phase closest to the first end of the primary, is positioned at the second end of the primary.

Abstract: A tubular linear primary element is constructed of a plurality of core groups, each core group being constructed of a plurality of laminated comb-shaped plates, each plate having a plurality of radially aligned teeth and slots. The core groups are coupled together radially about an axis with the slots of the core groups facing each other toward the axis. The teeth of each core group are removed at an axial position along the primary into which an approximately ring-shaped reinforcing core is inserted.