crane
Let an agent explain cranes and their types, relay principles, history and safety from engineering and occupational safety sources, describe the types the registry aliases name, and distinguish cranes from hoists, derricks, forklifts and the bird called crane.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain cranes and their types, relay principles, history and safety from engineering and occupational safety sources, describe the types the registry aliases name, and distinguish cranes from hoists, derricks, forklifts and the bird called crane.
A machine for lifting and moving heavy loads using ropes or cables over sheaves, with types such as tower, mobile, overhead and gantry cranes, harbour cranes for ships, rail cranes for railway work, floating sheerlegs and crane ships such as the Chinese Beiqi 384 class, historical shear hulks used to step masts, and specialised military crane tanks for recovery; cranes are essential in construction, shipping and industry and are subject to strict safety regulation.
What it is for: Lifting and moving heavy loads.
It can be explain types and principles; relay safety and regulation; describe named types; distinguish related machines.
Distinguishing features
Boom and cables
Many configurations
Heavy lifting
Safety critical
What it looks like
A boom or jib with cables and hooks on a tower, vehicle, rail, ship or gantry.
Physical character
largest floating cranes: over 10000 tonne - lift capacity
Roman treadwheel crane: polyspastos note
principle: mechanical advantage via pulleys and levers note
How it is recognised
Lifting machine with boom, cables and hook
Harbour crane, floating sheerleg, crane ship, rail crane, shear hulk, crane tank
Hoists lift vertically only; derricks are simple boom structures; forklifts use forks; the crane bird is an animal
Related models
is a kind of - in registry terms
uses -
is contrasted with -
is exemplified by -
In practice
Families and kinds
tower cranes
mobile and crawler cranes
overhead and gantry cranes
harbour and container cranes
floating cranes, sheerlegs and crane ships
rail cranes and historical shear hulks
armoured recovery vehicles with cranes
Standards and regulation
LOLER and national lifting equipment regulations
ISO and ASME B30 crane standards
Operator certification rules
Failure modes and hazards
Collapse and dropped loads
Contact with power lines
Registry aliases mixing vessels, vehicles and machines
Also called
+4
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.crane-animal
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What a crane is.
Definition.
Definition
Definition.
Definition
Definition.
- What is a crane, and how does it differ from hoists, derricks, forklifts and the bird? definition
- Is the question about a type, principle, safety or operation needing certified training? boundary
Types
Types.
Types
Types.
- What are harbour cranes, floating sheerlegs, crane ships, rail cranes, shear hulks and crane tanks? definition
- Which entry fits the specific type? action
Engineering Engineering.
Science.
Principles
Principles.
Principles
Principles.
- How do pulleys, counterweights and load charts govern crane capacity? provenance
- Which references are standard? provenance
Design
Design.
Design
Design.
- How are tower, mobile and floating cranes designed? provenance
- Which sources are cited? provenance
Safety Safety.
Regulation.
Rules
Rules.
Rules
Rules.
- What regulations and inspections apply to cranes? provenance
- Which entry fits lifting operations regulations? action
Accidents
Accidents.
Accidents
Accidents.
- What causes crane accidents, as safety agencies report? provenance
- Which entry fits crane collapse? action
Context History.
Context.
History
History.
History
History.
- How did cranes develop from Greek and Roman devices to modern machines? provenance
- Which entry fits treadwheel crane? action
Ports
Ports.
Ports
Ports.
- How did container cranes transform shipping? provenance
- Which entry fits container crane? action
What the second pass must settle
- Should floating crane and crane ship be separate primary entries?
- How should engineering sources be linked?
- The registry entry has merged aliases naming vessels and a military vehicle; should they be split off?