roving frame vs speed frame

roving frame and speed frame both are nouns.

Word	Noun	Adjective	Verb	Adverb
roving frame	Yes	No	No	No
speed frame	Yes	No	No	No

As nouns, roving frame and speed frame are synonyms defined as:

roving frame and speed frame: a textile machine that transforms the drawn sliver into roving.

Other synonyms of roving frame include fly frame, simplex machine.

roving frame (noun)	speed frame (noun)
a textile machine that transforms the drawn sliver into roving.	a textile machine that transforms the drawn sliver into roving.