My Sad Sprockets

The Bedford Boys · #1 19-09-10, 04:20

What does a Loyd sprocket look like?

martyn · #2 19-09-10, 23:25

there not british sprockets ? mine is a solid thickness and bolts up to a shoulder on the drum they dont have a cut out in the back ? mine were original sprockets taken off dated 1943 with a TL number not CTL
i carnt find the photo of my sprockets before we fitted them but have one of them on the vehicle and a shot of the hub before they were fitted.

kevin powles · #3 20-09-10, 00:15

Hi Martyn, You must of seen that rimmed type of sprocket!, Shauns got them on his carrier, I have seen them on three other UC Carriers, The rim go's on the outside. They only go on one way, while your sprockets like mine will go on either way round. I say british carrier as i was told they were british but saying that I have seen them on Canadian carriers. I will try and dig out some pics.......this carrier lark is all very confusing.

Kevin.

Lynn Eades · #4 20-09-10, 01:59

I think they could be Loyd sprockets. I think the extra width is to help guide the track (help it stay on)
Loyds had a series of radiused angle brackets that bolted on with the sprocket locating bolts.
There was one for each pair of bolts.
Maybe these sprockets here were an interim idea to solve a problem, before the boffins came up with the cheaper option of the things I have just mentioned (which I assumed were a standard Loyd part) I believe these were also fitted to the universals, on occasions
A parts book could help, ..anyone?
You can barely see what I'm talking about on this Loyd

Lynn Eades · #5 20-09-10, 02:26

Could "Local Guy" and "The Bedford Boys" please add a name to their profile. It is nice to be able to use a name. Most of us on here have one

ajmac · #6 20-09-10, 14:45

We must all remember that the drive train on Carriers goes back a long way and has a war at the end of it! The evolution of parts both reflects design improvements and production compromises. I suspect that the sprocket shown is an early version used until someone had the bright idea to simplify the manufacturing cost and time. The loyd version on mine and a 1941 dated example I´ve seen are flat, just like Martyns photos. All my sprockets are shot, worn to within an inch of their life by the Belgians post war. I too need a NOS example to get the profile from as I need to get four made. Will anyone in the midlands lend me one or a .dwg for the lazer cutting chap? I know Martyn hasn´t got one as his are bolted to the UC

The simplified sprocket doesn't positivly guide the track on a UC, but for some reason when Loyd used the standard sprocket they added the guide plates to run against the outside track horn as discused earlier in the thread, the other horn on the track runs an a deep groove cast into the drum. The sprocket is attached to the drum by bolts and special curved steel plates on the back side of the drum sprocket flange, thus on a Loyd the sprockets are bolted from the front and there are no nuts, the curved plates are tapped instead.

PS. Loyd brake drum is with the pattern maker now...worn sprocket is on the workshop floor, came off quite easly once Martyn had used his heavy duty socket set to split the drum from the hub! (thanks for the help)

martyn · #7 20-09-10, 21:41

Thort id seen them somwhere before couldnt rember if it was shauns or the old boy from gainsborough, yep carriers such a simple vehicle yet so confusing

Local Chap · #8 20-09-10, 01:46

Quote:

Originally Posted by The Bedford Boys

What does a Loyd sprocket look like?

A bit like This

If you're looking for new sprokets, I could try to persuade (

) a bloke to sell what look like 20 virgin carrier sprockets that form part of his front fence, along with variuos other Ag and Industrial wheels mixed in. He's not convinced yet.