B - Operations – Transporting – 60 – M
Patent
B - Operations, Transporting
60
M
238/8
B60M 1/34 (2006.01)
Patent
CA 1055905
ABSTRACT A rail construction for rail-type electrification systems, comprising a conducting rail member having a cross-sectional configuration somewhat like a pair of channel shapes disposed back to back. One channel shape is used for suspension or mounting, as well as rigidity. The other channel shape con- tains a stainless steel insert in the form of a flat contact member which is secured in place by being pinched between opposed wall areas of flanges of the rail member, in conse- quence of the flanges being swaged or displaced beyond their elastic limit to effect a gripping of the contact member. The inner walls of the flanges, which adjoin the elongate contact member, constitute metal guideways that assure a positive tracking of the collector shoe. The advantage of the present construction over prior devices is that any small relative movements between the conducting rail member and the stainless steel insert, as occasioned by temperature changes for example, cannot result in loosening of the insert or deterioration of the electrical conductance thereto.
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