Patent classifications
E
FIXED CONSTRUCTIONS
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E01
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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E01H
STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING; OR PREVENTING; FOG IN GENERAL; CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
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8/00
Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
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E01H8/10
Removing undesirable matter from rails, flange grooves, or the like; railway parts; , e.g. removing ice from contact rails, removing mud from flange grooves
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E01H8/12
specially adapted to grooved rails, flangeways, or like; parts of the permanent way, e.g. level crossings or switches
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E01H8/125
Pneumatically or hydraulically loosening, removing or dislodging undesirable matter, e.g. removing by blowing, suction or flushing; ; Loosening or removing by means of heat
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