{"product_id":"3-inch-scale-wallis-and-steevens-simplicity-roller-with-driving-truck-stock-code-7454","title":"3 inch scale Wallis and Steevens \"Simplicity\" roller with driving truck","description":"\u003cp align=\"left\"\u003e   An exceptionally well-built Wallis \u0026amp; Steevens \"Simplicity\" steam  roller, built to the 3 inch scale Plastow design by a local man - a talented  engineer he made a great many models including stationary engines, boilers,  locomotives and traction engines. We've had several over the years, most  recently a fine \u003ca href=\"file:\/\/\/C:\/Users\/mike.palmer\/Dropbox\/SRS%20website\/stock%20pages\/7489\/index.htm\" target=\"_blank\"\u003eStuart  Victoria mill engine\u003c\/a\u003e, \u003ca href=\"file:\/\/\/C:\/Users\/mike.palmer\/Dropbox\/SRS%20website\/stock%20pages\/5902\/index.htm\" target=\"_blank\"\u003e5  inch test boiler\u003c\/a\u003e and a particularly good 3 1\/2 inch gauge Juliet which  remains in new, unsteamed condition. He had sold this roller some years ago,  it's been steamed on occasion but remains in excellent mechanical order, running  like the proverbial sewing machine.\u003c\/p\u003e\u003cp align=\"left\"\u003eSilver soldered copper  boiler, 90psi working pressure. Twin spring type safety valves, feed by injector  and mechanical pump. Cast iron cylinder with slide valve actuated by  Stephenson's gear, pole reverser, mechanical lubricator. Transmission is single  speed with differential, steering by the distinctive Wallis worm and quadrant -  it's quick and precise on the model, pretty much the same as in full size.\u003c\/p\u003e\u003cp align=\"left\"\u003eOne  of the nicest of these we've seen in recent years, a well sorted machine built  to a high standard throughout.\u003c\/p\u003e\u003cp align=\"left\"\u003eComplete with a basic driving  trolley, could easily be converted to a skateboard if so desired...\u003c\/p\u003e","brand":"Station Road Steam","offers":[{"title":"Default Title","offer_id":54019980788053,"sku":"7454","price":4750.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/0094\/2677\/files\/7454-1.webp?v=1779908948","url":"https:\/\/stationroadsteam.com\/products\/3-inch-scale-wallis-and-steevens-simplicity-roller-with-driving-truck-stock-code-7454","provider":"Station Road Steam","version":"1.0","type":"link"}