GB2237253B - Improvements in rail transportation systems - Google Patents

Improvements in rail transportation systems

Info

Publication number
GB2237253B
GB2237253B GB8923269A GB8923269A GB2237253B GB 2237253 B GB2237253 B GB 2237253B GB 8923269 A GB8923269 A GB 8923269A GB 8923269 A GB8923269 A GB 8923269A GB 2237253 B GB2237253 B GB 2237253B
Authority
GB
United Kingdom
Prior art keywords
transportation systems
rail transportation
rail
systems
transportation
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 - Fee Related
Application number
GB8923269A
Other versions
GB8923269D0 (en
GB2237253A (en
Inventor
Timothy Bak-Kwan Leung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LEUNG TIMOTHY BAK KWAN
Original Assignee
LEUNG TIMOTHY BAK KWAN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LEUNG TIMOTHY BAK KWAN filed Critical LEUNG TIMOTHY BAK KWAN
Priority to GB8923269A priority Critical patent/GB2237253B/en
Publication of GB8923269D0 publication Critical patent/GB8923269D0/en
Publication of GB2237253A publication Critical patent/GB2237253A/en
Application granted granted Critical
Publication of GB2237253B publication Critical patent/GB2237253B/en
Priority to HK34995A priority patent/HK34995A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B25/00—Tracks for special kinds of railways
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B5/00—Rails; Guard rails; Distance-keeping means for them
    • E01B5/02—Rails
    • E01B5/04—Grooved rails
GB8923269A 1989-10-16 1989-10-16 Improvements in rail transportation systems Expired - Fee Related GB2237253B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8923269A GB2237253B (en) 1989-10-16 1989-10-16 Improvements in rail transportation systems
HK34995A HK34995A (en) 1989-10-16 1995-03-16 Improvements in rail transporation systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8923269A GB2237253B (en) 1989-10-16 1989-10-16 Improvements in rail transportation systems

Publications (3)

Publication Number Publication Date
GB8923269D0 GB8923269D0 (en) 1989-12-06
GB2237253A GB2237253A (en) 1991-05-01
GB2237253B true GB2237253B (en) 1994-10-19

Family

ID=10664653

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8923269A Expired - Fee Related GB2237253B (en) 1989-10-16 1989-10-16 Improvements in rail transportation systems

Country Status (2)

Country Link
GB (1) GB2237253B (en)
HK (1) HK34995A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2715623B1 (en) * 1994-02-01 1996-04-05 Paul Glassey Air transport installation by rail.
CN112252093B (en) * 2020-09-25 2022-05-17 国网福建省电力有限公司 Special track for construction and transportation of power transmission line and construction method thereof

Also Published As

Publication number Publication date
GB8923269D0 (en) 1989-12-06
GB2237253A (en) 1991-05-01
HK34995A (en) 1995-03-24

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19941221

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20011016