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Mobile Mini Rock Crusher
Larry Fulton’s rock crusher wouldn’t do much good in a quarry, but it sure gets attention at parades and shows. The crusher was built for use in a minerals assay office in 1903. Fulton motorized the crusher and made it self-propelled as well.
“I put it on a cart with a 1939 International 1 1/2 hp motor on it,”
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Mobile Mini Rock Crusher AG WORLD Larry Fulton’s rock crusher wouldn’t do much good in a quarry but it sure gets attention at parades and shows The crusher was built for use in a minerals assay office in 1903 Fulton motorized the crusher and made it self-propelled as well “I put it on a cart with a 1939 International 1 1/2 hp motor on it ” recalls Fulton “The 300-rpm motor powers the crusher and the cart I can drive it up and down onto a trailer to take it to shows ” Originally Fulton installed a seat to go with the tiller-style turning lever However he found it impossible to get insurance for a drivable rock crusher Once he removed the seat insurance was not a problem The cart itself is an old golf cart with its original back wheels differential and brakes The front axle is off an old garden tractor as is the 6-speed transmission that connects to the differential The engine has a crank handle and a magneto “With the engine in place the cart weighs about 1 020 lbs ” says Fulton “I ran a V-belt to the transmission and a 4-in wide flat belt to run the crusher flywheels ” The crusher itself has a 5-in wide jaw with a 3-in spread for a full 3 by 5-in opening The back plate in the jaw can be lowered to make smaller size pieces The crushing takes place when a camshaft oscillates pushing the back plate up against the rock in the opening As the rock breaks up it falls further and further into the V-shaped jaw finally exiting when small enough The crusher was made by Denver Fire Clay Co The camshaft rides between two 4-in wide and 14-in dia flywheels Fulton spliced the flat belt together out of an old round baler belt He made a tightener for it and put a clutch on the back to control the power to the big flywheels While the crusher could handle harder rock for the purpose of demonstrations Fulton uses soft rock such as sandstone “My last show the crowd of adults and kids crushed 15 gal of fines from 25 gal of stone ” he says “Kids love dropping a piece of rock in and seeing it get crushed ” Contact: FARM SHOW Followup Larry Fulton 4504 E 17th St Cheyenne Wyo 82001 ph 307 634-7042; lhfulton@msn com
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