Brother Project 631 Sewing Machine

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Brother Project 631 Sewing Machine

A decal is missing on the front of this machine that probably contained the model number. For this reason, we aren't sure what model this is. A search of the web leads us to believe it is a Brother Project 631.

The machine is all metal, heavy and appears to be well built as were most mechanical sewing machines made during this period of the 1960s.

We have never spent the time to clean it or determine how it sews. There are two reasons for this: First, the machine uses cams to form fancy stitches and this mint-colored machine didn't come with any. The second reason that we have not spent a lot of time with it is because the needle stays parked on the left side of the presser foot. Since we use our machines for quilting, we find it very difficult to sew 1/4-inch seam allowances with this setup. We suspect that there is a cam that can be used that would center the needle.


Brother Sewing Machine Controls

The lever is used to select stitch pattern width and can be secured using the two locking knobs. Stitch width is adjusted using the large round knob and depressing its center button reverses direction. A control on the base (not shown) selects Darn-Silk-Norm.

Rear view of the machine shows an original Model C motor. The spool pin retaining bolt has been replaced, is loose, and allows the spool pin to wobble a bit.


Cam Access Door

Serial number of our machine is 29 J87433597. It was made in Japan. The machine cost $8.00 at a local thrift store.