Geograph - photograph every grid square

Having posted on the Geograph Discussion Forum for help in the identification of the object I received this reply from amr:

"My first reaction was to discount any sort of railway equipment; it simply doesn't look like anything railway that I have seen.

I then looked at the largest size of the image and it looks to me as if the wheel could be attached to a screw lead operating what appears to be some sort of slide sticking out on the left hand side. What this would fit in with is for the whole frame to be the remains of a commercial/forestry circular saw bench. The drive would be supported on the framework which extends out from the left hand side. There would be a moving table on top of the long section of the frame, supported on a series of rollers, and the studs sticking up from the frame would carry these. You can see the half-round depressions in the tops of the studs were the axles for the rollers would be located. The screw-operated cross-slide would allow lateral movement to position the saw blade in the right place for the next cut."

Robin Webster pointed out that the location is close to where a tramway from Millknock Quarry shown on the 1920 OS map joined the Border County Railway NY8779 : Millknock Quarry from the south.

The railway was closed in 1963, so perhaps a more recently discarded commercial saw bench seems more likely. Thanks folks.