US Patent: 258,401
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| Traction Engine
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Patentee:
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| Abraham O. Frick (exact or similar names) - Waynesborough, Franklin County, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 07, 1882 |
| Granted: |
May 23, 1882 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Frick Co.
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Description: |
| Abstract:
My invention relates to an improved construction of traction-engine, designed to overcome the difficulties which attend the use of this class of inventions upon uneven earth roads. In this class of engines, which are driven by toothed wheels, it is of course necessary to have all the gears between the engine and traction or running wheels in firm contact. On the other hand, the interposition of springs between the axle and the load is also desirable to accommodate the engine to obstructions such as stones, &c., in the road, and relieve the gear-teeth of the shocks which such obstructions would involve; but as the interposition of springs to relieve vertical jolts would involve from vibration at times a change in the distance between the axis of the traction-wheels and the axis of the gear-wheels, the other objection of disconnecting the gears is met with. The object of my invention is to provide such a construction as will reconcile the use of these o apparently antagonistic features, so as to secure the following results: first, perfect freedom to vibrate vertically without separating the gears and without involving destructive strains on the teeth as produced by said vertical jolts; secondly, an elastic rotary strain from the engine, so that if the wheels meet an obstruction and stop the rotary strain of the gears of the engine is not allowed to strip or strain the teeth; thirdly, to provide means for accommodating the gears to the movement incident to lateral swaying or the elevation of one side of the engine, thereby avoiding the straining or jamming the gears and, fourthly, to provide a simple and effective means for imparting an elastic rotary strain from the engine to the traction-wheels for going either forward or backward.
Claim:
The engine, cylinder, crank-shaft, and slotted side plates, all connected together for transmitting the strain to the axle independently of the boiler, in combination with the axle, springs supporting the weight of the engine, a radially-movable counter-shaft having one end extended through and made vertically movable in a slot in the side plate, and a link connecting the countershaft at this end to the axle. |
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