A V-block with a preselected shape defining a preselected included angle between a pair of V-block side portions is connected to a laminated spider of a rotor at preselected location between spaced apart adjacent poles of the rotor by disposing an elongated connecting piece in a slot longitudinally disposed in the spider and connecting the elongated connecting piece to the V-block by a fastener. Applying a preselected torque to the fastener establishes a predetermined force between the V-block and the conductive windings disposed about adjacent poles. The V-block arrangement is particularly suited for use in a dynamo-electric machine.

A wedge and spring assembly for use in electromagnets or dynamoelectric machines having a housing with an axis therethrough and a plurality of coils supported on salient poles that extend radially inward from the housing toward the housing axis to define a plurality of interpole spaces. The wedge and spring assembly includes a nonmagnetic retainer spring and a nonmagnetic wedge. The retainer spring is formed to fit into one of the interpole spaces, and has juxtaposed ends defining between them a slit extending in a direction generally parallel to the housing axis. The wedge for insertion into the slit provides an outwardly directed force on respective portions of the juxtaposed ends to expand the slit so that respective portions of the retainer spring engage areas of the coils adjacent thereto, thereby resiliently holding the coils against their respective salient poles. The retainer spring is generally triangular shaped to fit within the interpole space, and the wedge is generally T-shaped.

A rotor of a salient-pole type rotary machine is disclosed in which field coils are held by a coil brace disposed between adjacent magnetic poles. In addition to the coil brace, a holder provided with an elastic member is also disposed between the magnetic poles, and another elastic member is disposed between the coil brace and the said holder, whereby the said two elastic members are utilized for the fixing of the field coils and for the pressing force of the coil brace. And the whole of the coil holding mechanism is separated from a spider. This construction permits the field coils to be held in place without any great change in the holding force under any dimensional change.

A clamping apparatus clamps opposing pairs of stator coil windings of a turbine generator and includes a retaining platform positioned adjacent one side and across a pair of coil windings having a space therebetween. A bore extends therethrough and is aligned with the space between the pair of coil windings. A connecting insert member is carried within the bore of the retaining platform and has a threaded through-hole aligned with the space between the pair of coil windings. A threaded rod extends through the space between the pair of coil windings and through the threaded through-hole of the connecting insert member. The threaded rod mates with the threaded through-hole such that the tension created in the threaded rod during tightening biases the retaining platform against the pair of coil windings.

A rotor for a high speed generator is constructed of a plurality of laminations and interlamination disks, which are disposed between each of the laminations. A coil support assembly is disposed within each of the rotor interpole regions and is secured to the interlamination disks.