Model locomotives
US4274337A · kind A · utility
4Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1979 |
| Grant date | Jun 23, 1981 |
| Priority date | — |
| Expiry date | Jul 2, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H19/10
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
In a model of a steam locomotive having two independent sets of driving wheels, the single electric motor for driving the model is coupled to the two sets of driving wheels via a differential gear. The latter allows the two sets of driving wheels to alter their angular positions relative to each other, owing to track irregularities and other causes, and thereby enables the model to operate more realistically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.