GB437248A - Improvements in or relating to the treatment of substantially unworn rails - Google Patents
Improvements in or relating to the treatment of substantially unworn railsInfo
- Publication number
- GB437248A GB437248A GB13552/35A GB1355235A GB437248A GB 437248 A GB437248 A GB 437248A GB 13552/35 A GB13552/35 A GB 13552/35A GB 1355235 A GB1355235 A GB 1355235A GB 437248 A GB437248 A GB 437248A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rails
- inches
- per cent
- hardness
- deposit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/18—Reconditioning or repairing worn or damaged parts on the spot, e.g. applying inlays, building-up rails by welding; Heating or cooling of parts on the spot, e.g. for reducing joint gaps, for hardening rails
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
437,248. Rails. OXWELD RAILROAD SERVICE CO., 230, North Michigan Boulevard, Chicago, U.S.A.-(Assignees of George, H. S.) Aug. 7, 1934, No. 13552/35. Convention date, Sept. 6, 1933. Divided out of 435,953. [Class 104 (ii)] [See also Group XXII] The tread surfaces at or intermediate the ends of new or substantially uneven rails have surface layers of original metal removed for a length less than three inches and are then built up by deposition thereon of a metal capable of hardening on rapid cooling from an elevated temperature and acquiring a hardness of at least 60 Scleroscope after cold rolling. Large worn areas on rails under service may thus be avoided. The receiving end of a straight track rail joint, on which wear is greatest on the inside edge, has a part 17<1> cut away to a depth of about 0À04- 0À06" and the metal then deposited thereon. The deposit on the inner edge 21<1> may extend for a distance of two inches and on the outer outer edge 23<1> for a distance of half an inch. The rear edge of the deposit is thus diagonal to the rail so that wheels of rolling stock do not abruptly pass from a surface of one hardness to one of a different hardness. The leaving rail 12<1> may have a triangular deposit 18<1> extending half an inch along the inner edge and two inches across the end. For rails which are to be arranged so that more wear occurs from the middle to the outer edges, the shape of the deposits may be reversed. The deposited metal may be an air hardening steel such as an alloy steel containing 0À5 per cent of carbon, 0À9 to 1À1 per cent of manganese 0À9 to 1À1 per cent of chromium, and 0À4 to 0À6 per cent of silicon. The deposition is effected by welding. Rails may also be built up to a greater distance than three inches, in which case the hardness is in consequence reduced. Specification 435,953 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US437248XA | 1933-09-06 | 1933-09-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB437248A true GB437248A (en) | 1935-10-25 |
Family
ID=21928577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13552/35A Expired GB437248A (en) | 1933-09-06 | 1934-08-27 | Improvements in or relating to the treatment of substantially unworn rails |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB437248A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102409585A (en) * | 2011-08-16 | 2012-04-11 | 中铁二十二局集团第二工程有限公司 | Cooler for cooling on-site welded joint of long steel rail and using method for cooler |
-
1934
- 1934-08-27 GB GB13552/35A patent/GB437248A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102409585A (en) * | 2011-08-16 | 2012-04-11 | 中铁二十二局集团第二工程有限公司 | Cooler for cooling on-site welded joint of long steel rail and using method for cooler |
CN102409585B (en) * | 2011-08-16 | 2015-04-22 | 中铁二十二局集团第二工程有限公司 | Cooler for cooling on-site welded joint of long steel rail and using method for cooler |
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