1 - The seven Wagner Brothers |
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2 - Erwin Wagner in 1990, the youngest brother of the family |
3 - Articulated Tractors WI-30, 700 hp by FWD Wagner, a precursor. Pict J M M Collection.
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4 - First mining dumper of Wagner Mining Scoop Company |
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5 - Nice tracked articulated vehicle of Wagner Mining Scoop Company. This was still a prototype but articulated vehicles are increasingly used nowadays |
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6 - Elmer Wagner to controls of Go-Devil. Pict of review 'Mécanique Populaire', French Edition, Aug 1961.
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7 and 8 - Devers does not scare the Go-Devil designed for this job. |
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7 and 8 - Devers does not scare the Go-Devil designed for this job. |
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9 - On a tree trunk : the obstacles are crossed horizontally |
10 - The machine may put down on the ground |
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11 - Joint of the frame for the direction |
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12 - Overturn of the rear. Even a Go-Devil may encounter insurmountable obstacles |
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13 - Figure showing adaptability of the machine |
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14 - 35 ° Side Slope |
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15 - Crossing a tree trunk from front |
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16 - High position to overcome obstacles |
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17 - Interesting view of the machine on a tree trunk |
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18-21 - Easy crossing of an escarpment |
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18-21 - Easy crossing of an escarpment |
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18-21 - Easy crossing of the same escarpment |
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22 - Flex-Trac of Meili, Schaffhausen, in 1958-60 (now in Schübelbach). http://www.vmeili.ch/main/p_id/435/obj/67/nav/435/nav2/435/lang/7.html |
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23 - Pekazett tractor equipped with hydraulic pendulum system.Pict of Journal of Terramechanics, 1970, Vol 7, N°1, Pergamon Press, later Elsevier. |
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24 - X-Musen from the beginning of the 60 was developed by the Swedish Defense Research Institution and is now at Strängnäs in the new museum in 2012. It looks like Go-Devil. |
25 - Home built rig by James M. Bird of Tulsa Oklahoma. Hydraulics motors drive the wheels. The independent suspension arms are moved by actuators up and down 2 m. Pict from Popular Science, Jan 1971.
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