Picture Galleries > Fitting a catenary rod > drilling jig 1.jpg

One of the 6 brackets that hold each catenary rod onto the monotor ribs.  These were designed by trcing the marks on the ribs and also incoroporating measurmenets from the Dundee steam tram trailer (No 21) at Crich Tramway Village.  A drawing was then prepared, Gerald at Heritage patterns then made a pattern and got them cast and we fettled, drilled and cast them.  The radius of the monitor ribs was exactly the same as a wooden coat hanger so that is what i used to draw teh first drawing with in my pre CADS days.