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Messages - cardan

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Identify these bikes! / Re: Old monstrosity form a scrap yard needs ID
« on: January 13, 2018, 11:07:29 PM »

It's a very interesting beastie, but nothing (I think) to do with FN. The M12 motorcycle was made with a driven-wheel sidecar 1937-1940, and the Model 12 T3 Tricar was developed along-side, and built in reasonably large numbers. In the FN Tricar, the front wheel is at the centre of the triangle, and the rear differential was offset to the right, and the chassis detail is quite different. I have a book about FN with an extensive chapter on its military machines, and there is nothing to resemble the "monstrosity".

The "monstrosity" is neither "driven sidecar", nor "conventional tricar" - the front wheel is neither in line with one of the back wheels, nor equally-spaced  between the rear wheels. This should be an id feature, as should the braced telescopic fork.

It's such a weird thing it's hard to even guess the date, but I suppose somewhere between 1938 and 1960?




Re the photo: mini-me has nailed the ID of the bikes. The AJS outfit - with its boxy saddle tank and rim front brake - is a 1920 model , while the Triumph and Douglas are likely "war product".


I wonder how commercial photo archives can claim ownership of photographs which must be out of copyright (under normal circumstances).

Let's say you find a very old photo at a junk shop and buy it for a pound. You now own it. It is out of copyright, so you can do what you like with it. Sell it to someone else, scan it and make copies and sell them, or do what the big photo libraries do: enter into a contract to allow the use of the photo in a book, magazine, website... in exchange for money. In this case you are not buying a the photo, just the right to use it as agreed in the contract.

The slightly bizarre thing - and check it before you believe me - is that if someone has paid a squillion dollars for the rights to very old photos, and published them in a lovely coffee-table book, you can scan the photos from the book (because they are free of copyright) and do with them what you will. What you can't do is copy the author's captions, layout, fonts, ... because these are new and the copyright belongs to the author or publisher.

It's an interesting area, but provided you try to do the right thing - attribute the source of the photo - I doubt you can get into too much trouble.



Here copyright continues for 75 years after the death of the originator of the work, book,art whatever.

As it does in Australia for most things (70 years here), but not photographs.


... I can't establish the copyright situation so can't use it.  :-[

Here in Australia there is no copyright on photos taken prior to the mid 1950s, whether the photographer is known or unknown, living or dead. This is quite different to other works, such as written word or artwork. Worth checking what the situation is in the UK, but I'd guess it would be similar.

Note that there may be other restrictions on use, such as when you use or buy from a source that licenses use of an image that is not already in the public domain. For example you might be given access to an image "for private use only". But if that image has been published - say in a book or indeed on the internet - you can copy and use it, subject to copyright.



British Bikes / Re: Amal T15TT32
« on: January 10, 2018, 09:33:16 PM »

That looks nice!

I can date the BTH magneto (to the month) if you let me know the details on the brass plate.



British Bikes / Re: Amal T15TT32
« on: January 10, 2018, 10:44:49 AM »

Hi Goran,

The T15TT27 and 15TT32 are very similar carbies. Here's an extract from 1920s AMAC literature:

"T10TT25 This type was first used in the Isle of Man T.T. Races, 1925 and was afterwards put into general production for Sports machines, some being produced up till 1929 inclusive..."

So a sports bike from 1926 could be fitted with a T10TT25, but a 1926 TT bike would likely have a 10TT26.

The last update to the TT AMAC was the T10TT27 and this was used more-or-less unchanged up to about 1931. A 1932-model Norton, announced in say September 1931, might have specified a T10TT27 (while it was an AMAC carby, AMAC was part of AMAL by this time, so it would have had AMAL fuel bowls with AMAL on the lid), but later in the year they may have fitted the latest model AMAL 10TT32.

Your Model 40 sounds like a racy bike! The equivalent 350 Rudge was the "TT Replica" and it had a 10TT32 1 3/16" with twin fuel bowls. If your bike was built for racing, it probably started life with twin fuel bowls.

How about a photo?



British Bikes / Re: Amal T15TT32
« on: January 10, 2018, 12:45:49 AM »

On this listing: the seller says "will also soon list 2 tt carbs one small bore one norton brass carb keep a look out." It might be worth contacting him.

By the way, the float bowls in 1932 were also brass/bronze, as were the float bowl tops. They were engraved AMAL, unlike the later die-cast alloy tops that had the writing in relief.


British Bikes / Re: Amal T15TT32
« on: January 10, 2018, 12:37:30 AM »

Hi Goran,

My racing Rudge uses an AMAL 10TT32 - just like the one you are looking for, but slightly larger size (1 5/32" bore on the 500, 1 3/32" on the 350). The carb is based on the AMAC T10TT of the 1920s.

The Type 15 AMAL - such as the 15TT32 - has bore size up to 1".

In 1932 and 1934 (there was a 10TT32 and a 10TT34, but I don't think there was a 10TT33) the carb was brass/bronze, with a bell mouth that screws onto an external thread in the body. In the later 1930s, the bodies were aluminium alloy, and the bell mouth was fitted with a bell mouth secured by a lock ring that screws into an internal thread.

Not that the TT series of carburettors has a jet block that goes in from the top, so it doesn't have the usual large gland nut holding the jet block in from underneath.

As well as different bore sizes, they come with stub or two different flange mount options (2" centres, or 2.2" centres), and a choice of single or twin fuel bowls at various angles.

They are hard to find, and expensive, but they are around. Here's a later 1930s version - not absolutely correct but quite similar.

Good luck,


British Bikes / Re: 1951 Royal Enfield Model S S672
« on: January 08, 2018, 11:52:58 AM »

There are two standard spindle heights: 35mm and 45mm. Presumably your bike uses the lower one.


The Classic Biker Bar / Re: Aberdale near done!
« on: January 05, 2018, 10:48:53 PM »
My very first powered two wheels was an Excelsior Auto byke, but unlike you I never got it running even though me and my brother spent hours pushing it up and down the garden!

My first foray into powered motoring was also with my brother, and an elderly Motorbecane moped that came from our uncle Jack. We got it running, and with a tank full of petrol managed to set it alight. It had a plastic petrol cap, and when this melted the burning fuel did a fair impression of a flame thrower from the mouth of the tank - the bike was on its side in the middle of the road by this stage. When the fire brigade came it was almost all over, but the memory of them throwing a bucket of water on the smoking heap lives on...


British Bikes / Re: Massey & Massey Arran motorcycles
« on: January 05, 2018, 10:41:40 PM »
Yes. What would you like to know?


The Classic Biker Bar / Re: Aberdale near done!
« on: January 04, 2018, 10:20:51 PM »

There are two areas that will make a two stroke "guaranteed gutless".

1. The bore, piston and rings have to be in good order. Bore wear is often worse in the area around the port openings, and this is often missed by people more used to four strokes which wear at the top.

2. Crank case seals.

If you've done/checked these two things, you're left with some possible fiddling with timing, plugs and jets. You may as well get the most power you can out of it, but even then don't expect too much. I ride an e-bike most days - 250W (1/3 h.p.) max - and it's great fun and exercise.



Identify these bikes! / Re: Mid 20,s Beesa,s.... I think
« on: December 31, 2017, 05:33:26 AM »

Aren't all the motors more-or-less the same? If not, post a photo.

Re engine numbers:

B18075, B19452, B19452 are 1925
B30170 is very late 1926
B32786 is 1927 so probably wedge tank?

Re the frames that don't fit the motors, BSA had 350s, 500s, and twins, with vertical and sloping motors, through the mid-late-1920s. That's assuming they are BSA and not something else entirely. Frame numbers will tell.



Identify these bikes! / Re: Mid 20,s Beesa,s.... I think
« on: December 30, 2017, 10:12:51 PM »

B48159 is a very high frame number; it takes us all the way to 1929! So certainly wedge tank. For 1929, the B29 De Luxe (250) engines started at B 42108, frames started at B 47120. If you have an engine B43000-ish it probably goes with the frame.

Sausage tanks started in 1924 at engine number 1. The motors didn't change much, although I think the oil pump arrangement on the timing cover was one visible change.



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