There are some safety features on sewing machines. For example, some stop working if the presser foot is not down or the electrical is not hooked up correctly. You should take precautions yourself, such as never leaving the machine on around children and keeping your hands away from the needle.
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.
1) He invented the safty pin 2) He also invented the sewing machine, winchester repeating rifle, flax, knife sharpener, streetcar bell, hard-coal-burning stove, artificial stone, street sweeping machine, velocipede, and ice plough.
the sewing machine brooklyn
what is the function of a pulley in a sewing machine
What does the tension disc do on the sewing machine
The Singer 2517 Sewing Machine is quiet.
use safty gogle and gloves and keep distance 4m machine
1) He invented the safty pin 2) He also invented the sewing machine, winchester repeating rifle, flax, knife sharpener, streetcar bell, hard-coal-burning stove, artificial stone, street sweeping machine, velocipede, and ice plough.
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.