Frame Assembly Phase 1

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For most of the photos on this page, you can click the image for a larger picture.

	Before starting work we identified the different areas of fastening and uniquely identified each bolt hole.
	August 2021 Time to start the long job where each hole was drilled and reamed to ensure a true circular hole through the assembly. The hole dimensions were then read using a Bowers gauge - a type of internal micrometer. We could then specify and order the bolts, sized to fit each individual hole. Craig from CTL Seal starts drilling.
	February 2022 Adding to the complexity of the job was the necessity to ensure that the firebox support stretcher was fitted correctly to the underside of the main frames. Simply using a jack to push upwards on the stretcher showed that the whole frame assembly was being lifted. CTL Seal devised this jig so that sufficient force could be applied to the stretcher. Anthony Pilkington checks the fit - note the engineers blue.
	February 2022 Geoff using a Bowers gauge to read the internal dimension of a bolt hole.
	March 2022 Once the firebox support stretcher was firmly in position, we needed to manufacture the packing plates that fit between the frame extensions and the side of the stretcher. On the CAD model you can just make out the packing plate at the tip of the arrow. It is a slightly lighter shade of grey; it needs a curved trailing edge to match the shape of the frame extension plate.
	Sam from CTL Seal setting up the machine to produce the radiused edge on the packing plate.
	April 2022 A set of fitted bolts for the frames/frame extension manufactured by Generic Engineering in Rotherham.
	April 2022 All of the buffer beam components had been manufactured. In preparation for riveting, John checks that the front of the frame plates are the correct distance apart. The spacer bar has been used to set the correct distance.
	May 2022 VArley Boilers returned to rivet the buffer beam assembly in place. The buffer beam needed to be built up in stages so that riveting was not obstructed by any component. First job was to rivet the 4 angles to the front of the frames.
	May 2022 Once the angles are secure, the buffer beam can be riveted in place.

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82 records found. Page 6 of 9 displayed.