Riggenbach rack system
E759056
The Riggenbach rack system is an early and widely used rack railway technology that employs a ladder-like central rail to enable trains to climb steep gradients safely.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
rack railway system
ⓘ
railway technology ⓘ |
| advantage |
robust operation in harsh mountain environments
ⓘ
simple construction ⓘ |
| allowsMaximumGradient | up to about 25% depending on design ⓘ |
| appliedIn |
Niesenbahn
NERFINISHED
ⓘ
Rigi Railway NERFINISHED ⓘ various European mountain railways ⓘ |
| countryOfOrigin | Switzerland ⓘ |
| disadvantage |
less smooth running at higher speeds
ⓘ
more wear on rack and pinion compared to some later systems ⓘ |
| distinguishedFrom |
Abt rack system
NERFINISHED
ⓘ
Locher rack system NERFINISHED ⓘ Marsh rack system NERFINISHED ⓘ Strub rack system NERFINISHED ⓘ |
| fieldOfUse | rail transport engineering ⓘ |
| firstCommercialUse | Vitznau–Rigi Railway NERFINISHED ⓘ |
| firstCommercialUseDate | 1871 ⓘ |
| gearEngagement | external pinion engaging external rack ⓘ |
| hasComponent |
locomotive pinion gear
ⓘ
rack bar sections mounted between running rails ⓘ |
| hasDesignCharacteristic | rack teeth formed by transverse bars rather than milled teeth ⓘ |
| hasPart | ladder-like central rack rail ⓘ |
| historicalSignificance |
one of the earliest practical rack railway systems
ⓘ
widely adopted in 19th-century mountain railways ⓘ |
| inception |
1860s
ⓘ
1863 ⓘ |
| inventor | Niklaus Riggenbach NERFINISHED ⓘ |
| material | steel ⓘ |
| movementMechanism | adhesion plus rack-and-pinion drive ⓘ |
| namedAfter | Niklaus Riggenbach NERFINISHED ⓘ |
| notableFeature |
allows mixed adhesion and rack working on the same line
ⓘ
continuous ladder rack made of short bar sections ⓘ |
| operatingSpeed | low to moderate speeds suitable for steep gradients ⓘ |
| rackMounting | rack fixed to sleepers between running rails ⓘ |
| railProfile | ladder-type rack with transverse bars ⓘ |
| railwayTechnologyType | rack-and-pinion railway drive ⓘ |
| safetyFeature | prevents uncontrolled train rollback on steep gradients ⓘ |
| safetySystem | rack braking using pinion and rack engagement ⓘ |
| typicalUse |
cog railways
ⓘ
tourist mountain railways ⓘ |
| usedFor |
climbing steep railway gradients
ⓘ
mountain railways ⓘ |
| usedInTopography |
alpine regions
ⓘ
steep mountain slopes ⓘ |
| usedWith |
electric rack locomotives
ⓘ
rack railcars ⓘ steam rack locomotives ⓘ |
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.