Grace's Guide To British Industrial History

Registered UK Charity (No. 115342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 150,667 pages of information and 235,204 images on early companies, their products and the people who designed and built them.

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

H. J. P. Sprengel

From Graces Guide

Dr. Hermann J. P. Sprengel ( -1906)

c.1865 Invented a vacuum pump whilst working in London[1]

1871 Hermann Sprengel, of Gloucester-street, Belgrave-road, in the county of Middlesex, has given notice in respect of the invention of "improvements in the preparation of safety explosive compounds."[2]

1872 Hermann Sprengel, ... has given notice in respect of the invention of "improvements in the preparation of explosive compounds."[3]

1873 Hermann Sprengel, .... has given notice in respect of the invention of "improvements in the production of sulphuric acid."[4]



1906 Obituary [5]



See Also

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Sources of Information

  1. Journal of the Chemical Society, London, Volume 18
  2. London Gazette 25 April 1871
  3. London Gazette 13 Feb 1872
  4. London Gazette 18 November 1873
  5. Engineering 1906 Jan-Jun: Index: General Index