Title: Brush holder for electrical apparatus

• Summary
• Claims
• Description
• View all

Abstract: A brush holder structure for use in conjunction with transfer of current between a brush and a collector ring or commutator, respectively, on the rotor component of a dynamoelectric machine and which can be removed while the machine is in operation in order to renew worn-down brushes includes an electrically conductive support designed sectionally in L- or U-shaped form provided with a bore into which is screwed a combined mounting and plug-in device adapted to be removably inserted and interlocked with the brush rail structure of the electrical machine. Secured to the outer side of the depending leg of the L-shaped support, or to each such leg in the case of an inverted U-shape, is an open-bottom brush box containing a spring-loaded brush, and at the inner side of this leg a brush retaining lever is pivotally mounted and spring loaded in such manner that the lower end of the lever automatically engages and retains the brush against movement as the combined mounting and plug-in device is withdrawn from the brush rail, and releases from contact with the brush when the combined mounting and plug-in device is re-inserted in the brush rail.


Do you think this is a good invention? Vote now: