Cogpulley is likely misspelled.
Cogpulley has no English definition.
As a noun cogwheel is
a gear wheel.
cogpulley
Not English
Cogpulley has no English definition. It may be misspelled.
cogwheel
English
Alternative forms
* cog wheel
* cog-wheel
Noun
(
en noun)
A gear wheel
(When used attributively) Something behaving in similar, jerky, manner as a cogwheel, e.g. cogwheel respiration as a side effect of hyperbaric medicine
Synonyms
* gear wheel
* cog
* gear