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lay on |
lay on the line |
lay out |
lay over |
lay reader |
lay shaft
| lay the foundation
| lay to
| lay to rest
| lay up
| lay waste
lay shaft
CIDE DICTIONARY
lay shaft, n.
A secondary shaft, as in a sliding change gear for an automobile; a cam shaft operated by a two-to-one gear in an internal-combustion engine. It is generally a shaft moving more or less independently of the other parts of a machine, as, in some marine engines, a shaft, driven by a small auxiliary engine, for independently operating the valves of the main engine to insure uniform motion. [Webster 1913 Suppl.]
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