Friday, November 1, 2013

Champion 77: Some Patents

Fascinated by the old machines and while trying to date my 77 I came across these patents.

Although they may never match a production machine exactly patents are good for setting a timeline and more interestingly establishing the intenet of the design.

The needle and shuttle mechanism

After working with the machine for a while it is really just the head that is doing everything, the horn is mostly along for the ride.

This one shows the outline of the shoe insito.

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