Abt rack system
E675759
The Abt rack system is a railway rack-and-pinion mechanism that uses multiple toothed rack bars and pinions to enable trains to safely operate on steep gradients.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Locher rack system | 1 |
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
rack railway system
ⓘ
rack-and-pinion mechanism ⓘ railway technology ⓘ |
| advantage |
improved adhesion on steep gradients
ⓘ
increased safety on steep railway lines ⓘ reduced risk of tooth damage compared to single-rack systems ⓘ smoother engagement between pinion and rack ⓘ |
| appliesTo | railway tracks on steep gradients ⓘ |
| benefit |
allows continuous power transmission on steep grades
ⓘ
provides redundancy if one rack bar or pinion is damaged ⓘ reduces shock loads when entering the rack section ⓘ |
| component |
locomotive-mounted pinion gears
ⓘ
rack bars mounted between running rails ⓘ |
| distinguishedFrom |
Locher rack system
NERFINISHED
ⓘ
Riggenbach rack system NERFINISHED ⓘ Strub rack system ⓘ |
| enables | operation on gradients steeper than conventional adhesion railways ⓘ |
| feature |
multiple driving pinions on the locomotive
ⓘ
multiple parallel rack bars ⓘ |
| field | railway engineering ⓘ |
| inventor | Roman Abt NERFINISHED ⓘ |
| mechanicalPrinciple | positive mechanical engagement between rack and pinion ⓘ |
| pinionsCount | two or more pinions per driving axle group ⓘ |
| purpose | to enable trains to safely operate on steep gradients ⓘ |
| rackBarsCount | two or more parallel racks ⓘ |
| safetyRole | prevents uncontrolled train slipping on steep gradients ⓘ |
| usedFor | climbing steep mountain passes by rail ⓘ |
| usedIn |
mountain railways
ⓘ
rack railways with steep gradients ⓘ |
| uses |
multiple toothed rack bars
ⓘ
pinions ⓘ |
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Locher rack system