{"product_id":"contemporary-battery-powered-4-cylinder-driveshaft-demonstrator-model","title":"Contemporary Battery-Powered 4-Cylinder Driveshaft Demonstrator Model","description":"\u003cp\u003eBattery-powered mechanical demonstrator model illustrating the operation of a four-cylinder engine and driveshaft system. Constructed primarily from finished hardwood, the piece features four simulated cylinder blocks with reciprocating pistons connected via rods to a central crankshaft. As the unit runs, the pistons move in sequence, transferring motion through the crank to demonstrate rotational output. A compact motor housing with a small toggle switch powers the mechanism, making the internal motion visible and easy to follow.\u003cbr\u003e\n\u003cbr\u003e\nThe layout is intentionally exposed, allowing clear observation of the relationship between piston movement and crankshaft rotation. The wood construction, contrasting finishes, and simplified geometry give it the feel of a teaching aid or workshop-made display piece, designed to communicate basic mechanical principles rather than replicate a specific engine. Mounted to a painted base.\u003cbr\u003e\n\u003cbr\u003e\nShows minimal wear with light surface marks; mechanism operates as intended and powers on.\u003cbr\u003e\n\u003cbr\u003e\n8\" W x 8\" D x 4\" H\u003cbr\u003e\n\u003cbr\u003e\nMM - 20129 - 041326\u003c\/p\u003e\n\n\u003cp\u003eFor information regarding shipping, please visit our Terms \u0026amp; Conditions page \u003ca class=\"GeneratedLink\" href=\"https:\/\/industrialartifacts.net\/pages\/shipping\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e\n","brand":"Industrial Artifacts","offers":[{"title":"Default Title","offer_id":43993266290731,"sku":"20129","price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0194\/8170\/files\/fa819d8a-c108-5305-adb8-73a58e3cabb5.jpg?v=1777404575","url":"https:\/\/industrialartifacts.net\/products\/contemporary-battery-powered-4-cylinder-driveshaft-demonstrator-model","provider":"Industrial Artifacts","version":"1.0","type":"link"}