Bedplate

a plate, platform, or frame supporting the lighter parts of a machine.
Historical Examples

The bedplate, cylinder and guides are bored at one operation and cannot get out of alignment.
Farm Engines and How to Run Them James H. Stephenson

This resulted in a pair of cylinders flanged to fit the bedplate.
The Boy Mechanic, Book 2 Various

Mounted on the end of the bedplate is the oil pump, operated from the main shaft of the turbine as previously stated.
Steam Turbines Hubert E. Collins

In one of the channels the bed of the trough slopes up slightly to the place where the “bedplate” is fixed.
The Manufacture of Paper Robert Walter Sindall

Around the bedplate are located the oil-cooling coils, the oil strainer, the oil reservoir and the oil pipings to the bearing.
Steam Turbines Hubert E. Collins

noun
a heavy metal platform or frame to which an engine or machine is attached

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Bedquilt
a quilted coverlet. Historical Examples A bedquilt of blue silk and two pillows in white cases are hung over the railing of the balcony on the second floor. Plays by August Strindberg, Fourth Series August Strindberg He seems to get up a speech as in Yankee land they get up a bedquilt. American Eloquence, Volume […]
Bed rest
a prolonged rest in bed, as in the treatment of an illness. a device used to support a person sitting up in bed.

Bedridden
confined to bed because of illness, injury, etc. Contemporary Examples There was a war and Matthew (Dan Stevens) was bedridden until he got up and walked. ‘Borgen,’ ‘Girls,’ ‘Parenthood,’ ‘Mad Men’ & More: Ten Best TV Shows of 2012 Jace Lacob, Maria Elena Fernandez December 17, 2012 bedridden Child Rather spent about three years of […]
Bedrock
Geology. unbroken solid rock, overlaid in most places by soil or rock fragments. bottom layer; lowest stratum. any firm foundation or basis: Technical courses will be founded on a bedrock of sound, general education so as to produce a well-rounded engineer. the fundamental principles, as of a teaching, belief, or science: Let’s strip away the […]