[SEL] Hornsby Ackroyd Question

[Patrick M Livingstone]

Hi Arnie,
	I will check with my sources as to the construction of the Akroyd
pistons as I have never seen an Akroyd piston out of the engine. 
I have seen the piston out of a very large, very early Crossley. This piston
came apart to allow the rings to be removed. A very strange but workable
design.

Patrick M Livingstone
Leichhardt NSW
http://www.oldengine.org/members/pml/Index.html
http://www.users.bigpond.com/pml/
-----Original Message-----

Hi Folks,

I was perusing a Spring 2002 issue of Vaporising in the French's "reading
room"
and ran across the following bit in an article on restoring an 1895 split
frame
(girder frame) Hornsby Ackroyd engine, 12-1/2 hp.

"The piston itself was about 12 inches across and was constructed with
removable
top lands for servicing the rings.  You just undo four bolts and remove the
top
land, then a ring, and then so on down the piston."

OK, that's pretty wierd, but also pretty interesting.

Does anyone have any more info (like pictures) of this setup?  ISTR that
some of
the blokes in Oz have these girder frame Hornsby Ackroyds.

See ya,  Arnie