old tractor LANZ HP 4WD 1923 (scale 1/4)

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Gordo

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Beautiful work and some interesting set ups. Keep up the good work.
 

Brian Rupnow

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Zapjack--that rear axle assembly has spurred a memory. Back in the 1930's and 1940's you could buy an "Autotrack" kit to convert an automobile to a tractor. There were two very large steel wheels with an internal ring gear on them, and a separate axle for those wheels to mount on. Also provided in the kit were two small pinion gears which mounted to the original car axle. The car body was removed, and the car's rear axle mounted to the frame without springs. The separate axle for the large steel wheels mounted to the frame far enough forward of the car axle that the pinion gears on the original car axle mated with the large internal ring gears on the wheels. They had awesome power, but you had to make a large box and attach it to the cars frame and fill it with rocks to get traction to the wheels. They had so much torque that a few people were killed when the rear wheels hit an obstacle that prevented them from turning and the car chassis "walked" right up the internal ring gears and flipped over backwards crushing the driver.----Brian
 

OldRon

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Zapjack--that rear axle assembly has spurred a memory. Back in the 1930's and 1940's you could buy an "Autotrack" kit to convert an automobile to a tractor. There were two very large steel wheels with an internal ring gear on them, and a separate axle for those wheels to mount on. Also provided in the kit were two small pinion gears which mounted to the original car axle. The car body was removed, and the car's rear axle mounted to the frame without springs. The separate axle for the large steel wheels mounted to the frame far enough forward of the car axle that the pinion gears on the original car axle mated with the large internal ring gears on the wheels. They had awesome power, but you had to make a large box and attach it to the cars frame and fill it with rocks to get traction to the wheels. They had so much torque that a few people were killed when the rear wheels hit an obstacle that prevented them from turning and the car chassis "walked" right up the internal ring gears and flipped over backwards crushing the driver.----Brian
Those conversions were sold buy Sears, Roebuck and Company.
 

ZAPJACK

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Thanks Brian for those informations.
Really amazing kit's
I translate it in french and publish on local forum.
Regards
LeZap
 

LorenOtto

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Here is the blank mounting of rear axle. Included: differential, Hooke's joint and frame pivot.
The last pictures are the machining of hexagonal inside hole.
LeZap
View attachment 106422 View attachment 106423 View attachment 106424 View attachment 106425 View attachment 106426 View attachment 106427 View attachment 106428 View attachment 106429
I have just stumbled onto you build and am very impressed. You do beautiful work and I will be following your build.
 

k2steve

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That is one neat crazy universal mill, What is that?
Great looking work!
 

bobden72

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Nice work, almost identical to the clutch arrangement on my Case traction engine I built. Keep the pictures coming.
 

ZAPJACK

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All the parts are first sand blasted before painting
coat of primer, two coats of RAL7031 (grey) and a finishing coat of two component varnish
LeZap
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ZAPJACK

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Hello there,
There is the picture of the finished tractor.
Engine run, not like I will, and everything is OK: Clutch, differentials, brake, sterling wheel, ...
There is some original picture from real one. The original stay at John Deere museum in Mannheim (Germany)
Enjoy the pictures
LeZap
239.jpg
239a.jpg
239c.jpg
239d.jpg
240.jpg
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241a.jpg
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242a.jpg
 
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