1914 TT Nortons piston

-SG- The recent entry about my 'perhaps Martlet' piston has prompted Peter Thompson in NZ to send the attachment from 'The Motor Cycle' for 27th November 1913 (Olympia Show report) - the piston used in  TT Nortons for 1914. This is another piston with but one ring, doubtless devised by the redoubtable Mr Norton himself!  He obviously felt this was the right way to go, as the press release giving details of Norton's 1914 range (13th November 1913) specifically mentions the 'grooved piston with single ring' being the standard fitment for the coming year's models.

Norton at the 1914 Isle of Man TT

This photo was taken on Ramsey Promenade during the 1914 TT races on the Isle of Man. From left to right: Dan O'Donovan, the Braid Brothers, James Norton and his father sitting inside the sidecar combination. The motorcycles would be TT Model 9's or 3 1/2 HP models while Pa Norton brought his Big Four. This is another pic of Ossie Braid on this very machine.

...same day, same people, except for James' father.

...and looking at the rider's number (59), this must be Dan at the 1914 TT.

The Braid brothers in 1914

These are the Braid brothers during the 1914 TT on the Isle of Man.  The model numbering system has been in use since 1915, so while these motorcycles look like TT Model 9's they could be 3 1/2 HP models. Large boxes are fitted to the saddle tubes; are these oiltanks or toolboxes? The old Norton logo is still used.

Roger:"The Nortons have a two speed epicyclic gearbox on the end of the crankshaft. The lever changes between the two ratios without a clutch."

Bigport:" I think the machines are fitted with Brampton variable gears. The construction widens or closes the pulley flanges, thereby varying the gear ratio. See the description above.

Ossie Braid on his Model 3 1/2 HP Norton

Howard sent this photograph of a gent on an early Norton. The logo on the tank identifies it as a machine built before 1915; the smooth appearance of the crankcase suggests that it dates from after 1912. Before 1915 the Norton models were listed by description and not using the familiar numbering scheme (e.g. Model 7, 8 or 9) and this would thus be a 3 1/2 HP belt drive model. Note the 'gearchange' lever on the tank that operated the Phillipson pulley on the crankshaft.

Howard: "I think it is a pre 1913 model. The "SP" registration number is from Fife, Scotland. No idea who the rider is....bought the photo on eBay. I notice an acetylene generator bolted up on the handlebars so the bike looks to have been on the road and then stripped down for racing. It has a Senspray carburetter fitted. Great looking machine....wish it was in my shed!"

Who can add to the description?

Roger: "The picture is of Ossie Braid on the machine that he rode in the 1914 TT. He was part of the O'Donovan works team and this picture is of the same machine as the gear change handle is taped up as in the 1914 TT pictures. He is in his racing leathers and helmet. I suspect that he used the machine on the road after the TT which is why it is fitted with an acetylene generator. The composition of the picture suggests that it was taken by a professional photographer when he returned home after the race which is why the background is blurred out. "