Use "cogwheel" in a sentence

1. Although it is gray, its cogwheel form is pleasing, and these gained a reputation as the most desirable of almost all

2. machine cannot conceive that the small connecting cogwheel which revolves quietly is one of the most essential parts of the machine, and not the shaving which merely harms and hinders the working

3. The man who does not understand the construction of the machine cannot conceive that the small connecting cogwheel which revolves quietly is one of the most essential parts of the machine, and not the shaving which merely harms and hinders the working