{"product_id":"vertical-boiler-with-injector-test-rig-stock-code-9713","title":"Vertical boiler with injector test rig","description":"A finely made vertical coal-fired boiler and injector test rig, a beautifully made thing by a supremely capable builder responsible for, amongst other things, the \u003ca href=\"\/products\/5-inch-gauge-br-standard-class-5-stock-code-10065\/\" target=\"_blank\"\u003eStandard Class 5\u003c\/a\u003e, \u003ca href=\"\/products\/5-inch-gauge-hawthorne-leslie-0-6-0st-with-driving-truck-stock-code-9710\/\" target=\"_blank\"\u003eHawthorne Leslie\u003c\/a\u003e, \u003ca href=\"\/products\/3-12-inch-gauge-southern-pacific-railroad-2-8-0-stock-code-9709\/\" target=\"_blank\"\u003eSouthern Pacific 2-8-0\u003c\/a\u003e and \u003ca href=\"\/products\/3-12-inch-gauge-southern-railway-king-arthur-4-6-0-stock-code-9711\/\" target=\"_blank\"\u003eSouthern King Arthur \u003c\/a\u003ewhich we sold last year.\u003cp\u003e\u003c\/p\u003e\u003cp\u003e    Based on a design described by W.A.Carter (\"Testing Injectors\" - Model Engineer magazine, August 1975) for a setup whereby an injector under test could be run for extended periods without either dropping the pressure of, or overfilling, the boiler supplying it with steam.\u003c\/p\u003e\u003cp\u003e    Carter acknowledged that the original idea came from a 1903 book \"The Practice and Theory of the Injector\" by S.L.Kneass, his contribution being to make it suitable for testing miniature injectors.\u003c\/p\u003e\u003cp\u003e    The injector on test delivers into a collection tank via a valve loaded to boiler pressure - this is achieved by means of a floating piston with connection to the boiler one side, the injector delivery on the other. A gauge shows delivery pressure of the injector on test.\u003c\/p\u003e\u003cp\u003e    We have no documentation for the boiler - we suspect it was never used outside the builder's own workshop - however a twice working pressure hydraulic test showed no evidence of leaks or distortion.\u003c\/p\u003e","brand":"Station Road Steam","offers":[{"title":"Default Title","offer_id":54020143219029,"sku":"9713","price":1350.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/0094\/2677\/files\/9713-1.webp?v=1779911215","url":"https:\/\/stationroadsteam.com\/products\/vertical-boiler-with-injector-test-rig-stock-code-9713","provider":"Station Road Steam","version":"1.0","type":"link"}