What is a rotary hook bobbin?

What is a hook bobbin?

The HookBobbin is a patented adjustable tension bobbin holder with two retractable hooks which allow you to quickly and easily roll a dubbing around the shaft of a hook without the need for a dubbing twister.

How does a rotary hook work?

The rotary hook continuously rotates in place, hooking the upper thread each time its pointed tip passes the 12 o’clock position. Enough upper thread is pulled from above to pass around the bobbin case, which sits loosely inside the hook frame such that loops of thread can pass completely over it.

What is a sewing machine hook race?

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. … Depending on the brand and model of the sewing machine you may need to move a latch to remove the hook as well.

What does throat plate mean?

1 : throat sheet. 2 : a flat plate holding the feed dog of a sewing machine.

What is the function of oscillating hook slide?

An Oscillating hook picks up the top thread exactly as a Rotary. But instead of carrying the loop completely around the bobbin it only carries it far enough past center for the pressure of the needle pulling the thread up to pull the loop off of the point of the hook.

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What is a CB hook?

The CB Hook is used in particular for sewing utility and decorative stitches with a stitch width of up to 5.5 mm.

What is Rotary stitch?

The Rotary Stitch Master sewing machine works at a speed up to 1800 spm (stitches per minute) to give a better output. To ensure seamless working, it has a full rotary hook, is compatible with special attachments that aid stitching, and is capable of working on a variety of fabrics ranging from light to heavy.

Are 15 and 15J Bobbins the same?

Definitely NOT interchangeable! They look almost identical, but class 15 bobbins have flat ends, while class 15J bobbins have slightly curved ends. Sometimes they appear to work interchangeably, but even if they fit into your sewing machine, there is a risk of them jamming your machine up and causing major damage.