Object Title

Sample display showing cartridge manufacture - By Greenwood and Batley

Sample display showing cartridge manufacture - By Greenwood and Batley

Date

1870

Object Number

XX.4079

Provenance

Ex Greenwood and Batley Ltd., Leeds via the collection of Geoffrey Brown. Purchased 17 October 1999

Physical Description

Comprises a brass plate shaped to form a skeleton handle at one end and to which are soldered samples to show the various stages in the manufacture of a copper cartridge case for the ???? rifle.
The samples are in two rows, one showing the whole sample, the other the corresponding sectioned version.
The stages represented by these samples are detailed and comprise:
1. a punched blank (copper disc) and a cup formed from it
2. the first stage in drawing the cup into a closed tube
3. the second drawing in which the drawn tube in 2 is lengthened with a consequent reduction in diameter and wall thickness.
4. the third drawing stage in which the case is lengthened and thinned further
5. the final drawing operation in which the tube is given correct wall thickness and diameter.
6. tube trimmed to required length.
7. head and cap chamber formed.
8. piercing the single (Boxer type) vent in the cap chamber.
9. forming the neck of the case.
10. trimming to finished length.
11. inserting the cap

Dimensions

Dimensions: overall length: 355mm, max width: 138mm

Inscriptions and Marks

One the handle portion is engraved 'GREENWOOD & BATLEY LEEDS'

Associations

Places Britain