1928 Front Gas Lamp Brackets

Singles, twins and fours.
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Roger Gwynn
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Re: 1928 Front Gas Lamp Brackets

Post by Roger Gwynn »

The club has the drawings for both the 1927 version, D9/75 (6100-27) and for the 1928 machine E8/411 (6100-28) the latter shows that the taper is 1 in 5 inclusive or 5.655 degree angle
Roger Gwynn, Membership Secretary, curator of the Machine Register and the works drawings. Director of Draganfly Motorcycles, Craven Equipment and Supreme Motorcycles mostly retired.
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cmfalco
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Re: 1928 Front Gas Lamp Brackets

Post by cmfalco »

Roger Gwynn wrote: Fri May 15, 2026 8:27 amthe taper is 1 in 5 inclusive or 5.655 degree angle
Aside from the issue of whether the angle per side, or the total angle, is being discussed, the test rod I cut on my lathe at 5.7° definitely didn't fit, while 5° almost did.
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Roger Gwynn
Holder of a Golden Anorak
Holder of a Golden Anorak
Posts: 1973
Joined: Tue May 28, 2013 11:34 am
Location: Norwich, UK
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Re: 1928 Front Gas Lamp Brackets

Post by Roger Gwynn »

Oh yeas, always better to make the part to fit the other part rather than as specified as the former will fit and the latter may not
Roger Gwynn, Membership Secretary, curator of the Machine Register and the works drawings. Director of Draganfly Motorcycles, Craven Equipment and Supreme Motorcycles mostly retired.
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