The parts of a jack sewing machine are the upper presser foot, the lower presser foot, the bobbin case, the needle, and the thread.  A jack sewing machine is made up of different parts that work together to help you sew garments. You can navigate to  https://infinitysewing.co.uk/parts/ to buy jack sewing machine parts.  

Image Source:- Google

A jack sewing machine is a popular choice for seamstresses and sewer technicians because it is easy to use and has a variety of features. The Jack Sewing Machine is an old-fashioned machine that was used to sew fabric together. The machine has a number of different parts that are necessary for it to function properly. Below is a list of the most important parts of the Jack Sewing Machine. 

1. The Frame: The frame is the main structure of the Jack Sewing Machine and it is made up of a number of vertical metal bars. These bars are connected together by a series of horizontal metal plates. The frame helps to support the other parts of the machine and provides space for the needles, bobbin, and thread to work. 

2. The Head: The head is located at the front of the machine and it contains all of the machinery that is required for sewing fabric together. This includes the needle, bobbin, and thread tension device. The head also has a number of buttons that allow you to control various aspects of the sewing process. 

3. The Bar Foot: The bar foot is located at the bottom of the head and it helps to guide the fabric as it is being sewn together.