Railways – Track layers – Tamper
Patent
1975-02-19
1976-07-27
Paperner, L. J.
Railways
Track layers
Tamper
172719, E01B 2700
Patent
active
039713237
ABSTRACT:
A tamping blade is comprised of a blade shoe of steel that is adapted for mounting on the end of a support arm and has a cut-out at the leading edges to support at least one wear-resistant insert. Preferably a plurality of wear-resistant inserts, typically of tungsten carbide, are positioned end to end in the cut-out. Each insert has first and second opposed sides and first and second opposed major surfaces, with the major surfaces being angular to each other to provide a substantially uniform thickness for the body at each of the sides. The first side of each insert has a thickness of at least about 3/8 inch and is adapted to provide a leading edge for the tamping blade extending across the thickness of the blade shoe beyond the leading edge thereof. The first major surface is adapted to provide a wear-resistant facing for the tamping blade during lateral movement, and the second side and the second major surface are adapted to support the insert in the cut-out of the blade for impact loading of the first side of the insert.
REFERENCES:
patent: 2940522 (1960-06-01), Taylor et al.
patent: 3581664 (1971-06-01), Kruse et al.
patent: 3729055 (1973-04-01), Burridge
patent: 3793960 (1974-02-01), McKenry
patent: 3805423 (1974-04-01), Engel et al.
patent: 3826025 (1974-07-01), Elliott
Paperner L. J.
Reese Randolph A.
Teledyne Mid-America Corporation
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