Improvement in Hoisting Apparatus¶
Otis, E. G. (1861). Improvement in Hoisting Apparatus.
Cited by¶
2 citations across 2 artifacts.
Each citation links to the sentence it supports in the citing article.
Primes¶
- Containment
This sourceBibliography-only (tier C); not cited in body.
- Fail-Safe
- The practice originated in mechanical safety systems (elevator brakes, train dead-man's switches, pressure relief valves in the 19 century) and has evolved into a foundational principle across every domain with critical safety requirements: aviation (runaway-trim disable, autopilot disengagement), nuclear engineering (passive cooling, gravity-driven emergency shutdown), medical devices (pacemakers reverting to fixed rate on sensor failure), cybersecurity (deny-by-default authorization, circuit breakers, default encryption), software engineering (transaction rollback, safe mode), and industrial safety (interlocks, emergency stops)
This sourceThe first elevator safety catch: a wagon-spring linkage that, on loss of cable tension (cable break), springs outward into toothed guide-rails and arrests the falling platform — a passive, signal-loss-triggered safe state.
- The practice originated in mechanical safety systems (elevator brakes, train dead-man's switches, pressure relief valves in the 19 century) and has evolved into a foundational principle across every domain with critical safety requirements: aviation (runaway-trim disable, autopilot disengagement), nuclear engineering (passive cooling, gravity-driven emergency shutdown), medical devices (pacemakers reverting to fixed rate on sensor failure), cybersecurity (deny-by-default authorization, circuit breakers, default encryption), software engineering (transaction rollback, safe mode), and industrial safety (interlocks, emergency stops)
Verification¶
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Registry ID ref:34c1e31a4ea5 · see in the full table