Flat twin engines

[TonyC]

 Hi all,

Could anyone help with identifying 4 flat twin engines recently found in dads garage. We have no idea of the make or what they were used for.
Any help would be much appreciated

Regards Tony

[Dave]

Photos added.

[TonyC]

Hi All,

One of the engines is a Levis, have seen images with a fan blade and wire cage cover.

The 4HP Douglas engine looks like it is a stationary engine as it has pulley drive on it but it also has a large toothed gear ring.
It couldn't have been fitted to a Douglas car could it?? !!

Cheers Tony