Battery boxes

[earlswood nob]

Good morning all

Here is a silly question that has been bugging me as I cannot find an answer:

Lately I have been replacing the underframe on Kirk coaches with that of the MJT cable type rodding.

The original Kirk coaches had a single battery box. However I can see that some coaches had a battery box on both sides.

I am wondering if there was a standard rule to the number of battery boxes fitted. I assume that catering cars needed battery boxes both sides, and on full brakes, a single battery box would be sufficient.
Did standard passenger vehicles have one or two battery boxes.

I would welcome any ideas.

Earlswood nob

[Dave]

The General rule is for vestibule 61'-6" stock is (as always check a GA drawing or a photo).

Full brakes 1 box

Passenger carriages with and without brake ends, buffet cars 1 box either side, 1 dynamo.

Restaurant cars dia 10, 11 etc, 4 boxes, (1 x 45cell and 1 x 12 cell either side) 3 dynamos.

I would not use the Kirk boxes as they are incorrect, he seems to have assumed the central mounting strap was a gap, so provides
in reality 4 half boxes, use the Kirk ones for the 12 cell type.

Edit - corrected to 1 dynamo.

[earlswood nob]

Good morning all

Thanks, Dave, for an informative reply.

Earlswood Nob (A LBSCR signal box in the village where I grew up)

[jwealleans]

Are you sure about 2 dynamos, Dave?

[Dave]

Well spotted JW...don't know what I was thinking of (vac cyl's) that's the problem of doing it at work in a rush,
mind on other things. Sorry all 1 dynamo is standard, don't take any notice of me in future.