Friday, 25 January 2013
Not All Long Bobbins Are The Same
Here are the bobbins from four different machines. From left to right, Vesta Transverse Shuttle/Little Vesta, Serata treadle (ie, Stoewer Vibrating Shuttle), Singer Vibrating Shuttle, Frister and Rossmann Transverse Shuttle.
Sometimes bobbins are interchangeable between machines, but not always.
If the disc at the end of the bobbin is too large for the shuttle, the bobbin will not rotate properly inside it. The disc on the Vesta bobbin is smaller than on all the other bobbins shown.
If the bobbin winder has a little pin where the bobbin fits in at the right hand side, then there has to be a small hole in the disc. My Singers can take bobbins without holes because there is no pin.
The protrusion at the centre of each disc might be sharp and pointed like the Singer, rounded like the Vesta and Serata, or not there at all, like the Frister and Rossmann. The F&R is flat at one end with five holes, but has a solid disc with a central protrusion at the other end.
The first questions you need to ask if you are thinking of acquiring a long bobbin machine are firstly, has it got the shuttle, and secondly, has it got bobbins. Singer bobbins are easy to come by, whereas other bobbins can prove to be pretty scarce.