{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.headframe","code":"thing-q683835","url":"https://ver.cy/models/thing/q683835/","name":"headframe","alternateNames":["Malakoff tower"],"kind":"thing","status":"published","version":"0.2.0-wave.3","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.BLT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"The structure above a mine shaft that carries the sheave wheels over which hoisting ropes pass to raise and lower cages, skips and equipment, also called a headgear, pithead frame or winding tower, built in timber, steel or concrete in forms from lattice frames to the massive Malakoff towers of German and Belgian coalfields that supported the sheaves while winding engines were generally housed separately; headframes are the visual emblem of mining and many survive as industrial heritage.","purpose":"Let an agent explain headframes and their function and forms, relay engineering and heritage aspects, identify notable examples, and distinguish headframes from other mine structures.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Sheave wheels","Shaft position","Timber, steel or concrete","Heritage symbol"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What a headframe is.","layers":[{"id":"definition","name":"Definition","description":"Definition and function.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is a headframe, and how does it work with the hoist?","kind":"definition"},{"text":"Is the structure a headframe, a winding house, a tipple or a derrick?","kind":"boundary"}]}]},{"id":"forms","name":"Forms","description":"Forms.","findings":[{"id":"forms-finding","name":"Forms","description":"Forms.","questions":[{"text":"What forms do headframes take, including Malakoff towers?","kind":"definition"},{"text":"Which entry fits the specific form?","kind":"action"}]}]}]},{"id":"engineer","name":"Engineer","description":"Engineering.","layers":[{"id":"design","name":"Design","description":"Design and loads.","findings":[{"id":"design-finding","name":"Design","description":"Design.","questions":[{"text":"How are headframes designed for rope loads, and what safety rules apply?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"hoisting","name":"Hoisting","description":"Hoisting systems.","findings":[{"id":"hoisting-finding","name":"Hoisting","description":"Hoisting.","questions":[{"text":"How do drum and friction hoists and tower-mounted hoists differ?","kind":"provenance"},{"text":"Which entry fits mine hoist?","kind":"action"}]}]}]},{"id":"heritage","name":"Heritage","description":"Heritage.","layers":[{"id":"examples","name":"Examples","description":"Notable headframes.","findings":[{"id":"examples-finding","name":"Examples","description":"Examples.","questions":[{"text":"Which headframes are preserved as heritage, such as at Zollverein and in the Ruhr and Wallonia?","kind":"provenance"},{"text":"Which entry fits the specific site?","kind":"action"}]}]},{"id":"symbol","name":"Symbol","description":"Symbol of mining.","findings":[{"id":"symbol-finding","name":"Symbol","description":"Symbol.","questions":[{"text":"How have headframes become symbols of mining communities?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"context","name":"Context","description":"History.","layers":[{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How did headframes develop from timber gins to steel and concrete towers?","kind":"provenance"},{"text":"Which entry fits the history of mining?","kind":"action"}]}]},{"id":"regions","name":"Regions","description":"Regional traditions.","findings":[{"id":"regions-finding","name":"Regions","description":"Regions.","questions":[{"text":"How do headframe styles differ between mining regions?","kind":"provenance"},{"text":"Which entry fits the specific coalfield?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Monitor hoisting ropes, sheaves and structural condition of a headframe for its operator.","Document historic headframes for heritage records."],"mustNot":["Operate hoisting equipment without the mine operator's authority and safety systems in place.","Disable overwind, brake or signalling protections on a shaft.","Approve continued use of a headframe with structural defects.","Guide visitors to climb or enter abandoned headframes or open shafts."],"requiresHuman":["Allowing people to be raised or lowered after an inspection finding.","Demolishing a headframe of heritage value."]},"ethics":{"considerations":["Hoisting failures can kill miners in the cage or shaft.","Headframes are landmarks of mining communities and their history."],"affectedParties":["Mine workers","Former mining communities","Trespassers"]},"owners":{"steward":"The mine operator; a heritage body where it is protected.","roles":[],"masterSystems":["Mine safety authority records","Heritage registers"]},"relations":[{"target":"Q811979","type":"parent","note":"registry parent class"},{"target":"built structure","type":"related","note":"in registry terms"},{"target":"mine shaft","type":"related","note":"infrastructure"},{"target":"sheave","type":"related","note":"for the hoist rope"},{"target":"mine hoist","type":"related","note":"the winding engine"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.headframe","Wikidata: Q683835 (https://www.wikidata.org/wiki/Q683835)"]},"properties":{"applicability":"required","items":["Overall height:  m - Measure vertical distance from a stated foundation datum to the highest structural point using surveyed drawings or a site survey.","Sheave diameter:  m - Determine each sheave diameter from verified engineering drawings or a dimensional survey with the diameter convention stated.","Structural mass:  kg - Determine mass from verified material quantities and densities while stating whether machinery and foundations are included."]},"recognition":{"applicability":"required","items":["Hoisting structure over a mine shaft","Lattice, A-frame, tower and Malakoff forms","A winding house holds the engine; a tipple handles ore; a derrick serves oil wells","A tall frame or tower over a shaft with large wheels at the top."]},"capabilities":{"applicability":"required","items":["explain function and forms","relay engineering aspects","identify heritage examples","distinguish from other structures"]},"hazards":{"applicability":"required","items":["Structural failure and rope accidents","Corrosion of disused frames","Confusing headframes with other structures"]},"interfaces":{"applicability":"required","items":["Mining safety regulations for hoisting","Structural design codes","Industrial heritage protection"]},"context":{"applicability":"required","items":["Supporting hoisting over a mine shaft.","timber headframes","steel lattice and A-frame headframes","concrete tower headframes with tower-mounted hoists","Malakoff towers","preserved headframes as monuments"]}},"sources":[{"title":"Wikidata item Q683835: headframe","url":"https://www.wikidata.org/wiki/Q683835","note":"identity and sense of the item"},{"title":"Wikipedia: Headframe","url":"https://en.wikipedia.org/wiki/Headframe","note":"general description of the item"}],"openQuestions":["Should Malakoff tower be a separate entry?","How should mining heritage registers be linked?","How should preserved examples be recorded?"],"resources":{"spec":"/models/things/publications/thing-q683835/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q683835/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T01:23:35Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T12:16:34+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}