The loop passes around the body of the shuttle, travels down its side, and drops off the back end. In so doing, it has been wrapped around red thread dispensed from the bobbin (inside the shuttle), and a lock stitch is formed. … The machine makes a nice quality straight stitch, but it is pretty noisy in operation.
What is a vibrating shuttle sewing machine?
From Wikipedia, the free encyclopedia. A vibrating shuttle is a bobbin driver design used in home lockstitch sewing machines during the second half of the 19th century and the first half of the 20th century. It supplanted earlier transverse shuttle designs, but was itself supplanted by rotating shuttle designs.
How does a shuttle sewing machine work?
A common sewing machine design uses a floating shuttle hook. The floating hook design allows a top thread loop to pass completely around the bobbin assembly. A lock stitch is formed when the top thread has looped completely around the bottom thread. The take-up lever ensures a tight stitch.
How do you thread a vibrating shuttle sewing machine?
Open the front slide of the machine, turn the balance-wheel till the shuttle carrier comes under the opening, place the shuttle in the carrier with its point towards you, with the left hand take hold of the needle thread (leaving it slack from the end to the needle), turn the balance-wheel towards you until the needle …
What should my sewing machine tension be set at?
The dial settings run from 0 to 9, so 4.5 is generally the ‘default’ position for normal straight-stitch sewing. This should be suitable for most fabrics. If you are doing a zig-zag stitch, or another stitch that has width, then you may find that the bobbin thread is pulled through to the top.
What is an oscillating hook sewing machine?
Oscillating hook sewing machines have a hook that, instead of rotating in a full circle, oscillates back and forth. In this system, the hook picks up the upper thread from the needle and carries it down around the bottom of the bobbin cage.
How does the bottom bobbin work?
According to Vocabulary.com, “A bobbin is the part of a sewing machine on which the lower thread is wound. The machine makes a stitch by catching the bottom thread, from the bobbin, with the top thread, from the needle.” … The bobbin feeds the thread through the machine to help secure a stitch.
Why are there two spool pins on a sewing machine?
These are made to accommodate the two different types of wound thread spools. What appears to be a more modern recent way of winding, where the thread crisscrosses over itself and makes a pattern on the spool like you usually see on cones of thread (pictured below).
What is the hook race on a sewing machine?
The hook race is a circular groove that runs around the bobbin case. This groove or track allows the hook to travel in a circular path around the bobbin when the machine is in operation. To access the hook race on a machine you will need to remove the bobbin case.
Why does my bobbin keep falling out?
The finger of the bobbin case holder is probably not in the little groove that is in the needle plate. Every time you take off or loosen the needle plate, you have to make sure the finger is in the slot under the needle plate. Without doing that, the bobbin case won’t be securely in and will fall out or just spin.
Where is the shuttle race on a sewing machine?
The very pint of the shuttle hook should be right in the center of the needle shank just above the eye of the needle.