Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 133,376 pages of information and 211,456 images on early companies, their products and the people who designed and built them.
of 22 Budge Row, Cannon Street, London, EC4. Telephone: Paddington 2723
1813 Joseph Sloper was born.
1858 He designed and patented a perforating machine which could be used for cheque protecting. It utilised a roller with different projecting points so that it was possible to make different perforations in the cheques.
1868 Sloper patented a perforating machine for railway tickets.
1869 He described an advanced machine that could be used for dating railway tickets and the like - "...for perforating paper, etc. employing a stripper and embodying interchangeable heads, allowing choice of design..."
1929 Listed Exhibitor - British Industries Fair. Manufacturers of every kind of Machine for Perforating Paper, Cardboard, Cloth, Leather, Railway Tickets, Drawings, and for Dating, Marking, Numbering and Cancelling Cheques, Tourist Tickets, Labels, Cash Bills, etc. (Stand No. R.151) 
The firm was taken over in the 1990s.