{"product_id":"4-12-inch-scale-allchin-traction-engine-stock-code-3412","title":"4 1\/2 inch scale Allchin traction engine","description":"\u003cp\u003eA well-advanced 4 1\/2 inch scale traction engine, based on Hughes'  \"Allchin\" design tripled up - it comes out as a large engine, at  something around half a ton it stands higher than the McLaren road locomotive  that's currently in the workshop alongside it - the builder had intended to fit  rubber tyres, which would make it taller still. (\u003ca href=\"..\/..\/Traction%20engines%201%20May%202008\/index.htm\" target=\"_blank\"\u003eCheck  the engine lineup pictures here\u003c\/a\u003e to see the size relative to 4 inch Garrett  and Foster agricultural engines).    \u003c\/p\u003e\u003cp\u003eWork to date is to a functional rather than show-winning standard, however  the engine is largely complete, runs on air and has a new twice pressure  hydraulic test on the steel boiler for 100psi working pressure. Work to complete  includes making a set of safety valves, firehole door and some form of brake.  Some parts have been fabricated from standard parts, including a set of mitre  gears used for the steering and industrial fittings used for water and pressure  gauge - whilst eminently practical, they could be replaced to improve the look  of the engine considerably.    \u003c\/p\u003e\u003cp\u003eLength 78 inches\u003cbr\u003e  Height 50 inches\u003cbr\u003e  Flywheel 21 inch diameter\u003cbr\u003e  Front wheels 16 inch diameter\u003cbr\u003e  Rear wheels 27 inch diameter    \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003ccenter\u003e\u003c\/center\u003e","brand":"Station Road Steam","offers":[{"title":"Default Title","offer_id":54010046185813,"sku":"3412","price":6950.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/0094\/2677\/files\/3412-1.webp?v=1779900083","url":"https:\/\/stationroadsteam.com\/products\/4-12-inch-scale-allchin-traction-engine-stock-code-3412","provider":"Station Road Steam","version":"1.0","type":"link"}