In this thread Doc AV asks whether Enfield chargers were folded up or rolled during production;
Rather than take over that thread I thought it might be best to start another one … information on the subject is very hard to find and I’ve little idea of the processes involved, at least on an industrial scale.
I believe that they were folded from the limited information I’ve happened across, a couple of years ago I sorted through several thousand microfiche copies of drawings from RSAF Enfield, a lot of which showed tooling and pattern gauges used in the production of items at Enfield, none of which involved chargers … unfortunately.
In the absence of anything definitve here’s all that I have on the subject, firstly two illustrations from a brochure of workshop equipment from Taylor & Challen Ltd who were engineers with works in Birmingham;
Next is a drawing, I believe from Kynoch showing an “exploded” charger from a contract for Lithuania dated 1936 … it’s a low resolution scan but it’s the only one I’ve ever seen. Interestingly enough it gives all dimensions, including the rifle calibe, in millimetres;
Lastly, here’s a charger from British Pens that shows numerous parallel lines where the steel has worked against something whilst being formed, the lines are only on the bulge that accomodates the cartridge rim, they don’t carry onto the flat wall of the charger, so they’re not a blemish present on the steel strip before the charger forming started … they have to be an artifact from being worked, probably being pressed vertically … if the chargers were formed by rolling I’d expect to see the marks as axial, along the length of the charger, but that’s just a supposition on my part.
Fingers crossed that the more knowledgeable can chip in with something definite.