artefacts: 193
This data as json
| rowid | artifactNumber | ObjectName | GeneralDescription | model | SerialNumber | Manufacturer | ManuCountry | ManuProvince | ManuCity | BeginDate | EndDate | date_qualifier | patent | NumberOfComponents | ArtifactFinish | ContextCanada | ContextFunction | ContextTechnical | group1 | category1 | subcategory1 | group2 | category2 | subcategory2 | group3 | category3 | subcategory3 | material | Length | Width | Height | Thickness | Weight | Diameter | image | thumbnail | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 193 | 1966.0170.001 | Valve gear model | WOOD BASE/ METAL | GRAND TRUNK WESTERN RWY | United States of America | 1930 | circa | 1 | BASE PAINTED BLACK/ BLACK & GREY PAINTED VALVE GEAR WITH YELLOW PARTS | THIS GEAR WAS WIDLEY USED ON CN & GTW LOCOMOTIVES. | USED TO DEMONSTRATE VALVE EVENTS - VALVE GEARS ARE THE MECHANISM THAT TRANSMIT MOTION TO THE VALVES WHICH ADMIT STEAM TO & EXHAUST IT FOM THE CYLINDERS.(1) | GEAR INVENTED BY ABNER BAKER CA. 1903 HAVING FEWER MOVING PARTS THAN OTHER TYPES OF GEAR. | Railway Transportation | Models | wood;metal | 149.5 | 25.2 | 64.5 | http://source.techno-science.ca/artifacts-artefacts/images/1966.0170.001.aa.cs.png | http://source.techno-science.ca/artifacts-artefacts/images/1966.0170.001.aa.cs.thumb.png |
