Without seeing the machine, I am going to make an educated guess and say that they are more than likely thread guides.
well, i am doing a project on sewing. i got a sewing machine for Christmas 2010. Elias Howe made the first sewing machine ever. i hope that i helped you out. 2-24-11
theory of sewing machine
sewing machine:) A sewing machine uses thread to fasten fabric together. A sowing machine plants seeds.
what is the function of the head of the sewing machine
A mechanical sewing machine.
A sewing machine with at least a 2 hp motor is suggested for denim.
£2
the sewing machine brooklyn
what is the function of a pulley in a sewing machine
The Singer 2517 Sewing Machine is quiet.
What does the tension disc do on the sewing machine
If by "olden days" you're referring to prior to 1846 (when the sewing machine was invented), there was no sewing machine. All sewing was done by hand.