2nd January 2005 - H4 dragbox components
K3 Dragbox ready for silver soldering
Milling the drawbar slots in the drag beam
Underside of H4 dragbox
Four loco frame plates in milling machine for truing
Frame plates being marked out
Closer view of marking out
Drilling holes in the frames by the dozen.
Drawing with x y co-ordinates for the holes
Plates set up for drilling
Boring the large holes
A pile of horn castings just arrived
Chain drilling the profile of the underside of the fron
Surplus material broken out
Machining the frame edge
An impovised DRO
Table of co-ordinates for machining the frame edge radi
Profiling the back of the frames
Machining the frame plates complete - for the K3
A pair of frames being pickled and bottom one I did earlier
Trial erection of the H4 frames
Machining Horns 1
Machining Horns 2
Machining Horns 3
Erecting the H4
And the K3
31st December 2005 - Two sets of frames - A years work
The two loco frames were exhibited in May 2006 at Harrogate
Work to overhaul one of my other locos delayed work on the new engines and in June the plates for the H4’s GNR Class B 3500 gallon tender, annealed, straightening and descaled, are seen, marked out, on the milling machine for being drilled
Shows the same plates from a different angle to show the many rivet holes
Here the frames are seen after drilling and profiling.
The K3’s tender is the LNER Standard 4200 type and this illustrates the marking out of the plates prior to machining.
A few parts had been made earlier in the year and here are some frame stretchers for the GNR tender. The structural Ts are machined from the solid
The frames for both tenders almost ready for assembly, now with fabricated horns, spring hanger brackets and top angles riveted in place. Note the inner frames of the LNER tender and the fabricated frame stretchers and brake hanger supports. The riveted rear drag box for the GHR tender is partly made.
A close up of the riveted drag box
A view of the LNER tender stretchers
The front drag box of the GNR tender test assembled
The drag box stripped down for cleaning prior to final assembly and silver soldering