Abstract: A rotary electrical machine comprises: a stator core; a rotor core arranged at the inner periphery of this stator core; a bracket connected with one end of the stator core; a first bearing arranged by means of the bracket; a frame and a housing connected with the other end of the stator core; a second bearing arranged by means of the housing; a ventilation fan provided between the rotor core and the first bearing, with vanes provided on the outside in the axial direction; a rotor shaft that is freely rotatably supported by the first bearing and second bearing; an inlet provided in the frame or the housing; and an outlet provided in the frame or the housing.

Abstract: This invention relates to a rubber composition for seismic isolation laminate which exhibits excellent damping capacity as well as sufficient hardening properties. Such rubber composition for a seismic isolation laminate comprises at least a diene rubber; and 40 to 160 parts by weight of carbon black having a CTAB specific surface area of 120 to 370 (m2/g) and a CTAB specific surface area (m2/g)/iodine adsorption (mg/g) of up to 1.0 per 100 parts by weight of the diene rubber.

Abstract: A modular binder ring is disclosed having a disk shaped central portion, an aperture formed substantially in the center of the central portion, and an annular outer rim formed on the periphery of the central portion. The outer rim includes an arcuately shaped outer surface configured as an outer segment of a circle, and has an axial width greater than the axial width of a central portion. Further, there is disclosed a loose leaf modular binder system comprising at least two modular binder rings, with a spine rod extending through the aligned apertures, capable of binding a plurality of loose leaf paper sheets of different lengths and widths. The paper sheets have die cut perforations on one edge sized to fit about the outer rim of the binder rings. The spine rod enables the bound pages to be removably suspended from a storage rack. In another embodiment, the pages are bound to the binder rings without the spine rod extended through the apertures.