Zona de identificação
Código de referência
Título
Data(s)
- c1792 (Produção)
Nível de descrição
Dimensão e suporte
2 leaves
Zona do contexto
Nome do produtor
História biográfica
Jonathan Carter Hornblower (1753-1815) was the British inventor of the double-beat valve, the first reciprocating compound steam engine. Hornblower's invention, patented in 1781, was a steam engine with two cylinders, a significant contribution to efficiency. The firm of James Watt (Boulton & Watt) challenged his invention, claiming infringement of patent. With the decision against him, Hornblower lost the opportunity to further develop the compound engine. Hornblower patented other inventions, a rotative engine and a steam wheel, or steam engine, and amassed a fortune in engineering. Hornblower died in 1815.
Entidade detentora
História do arquivo
GB 0096 MS 514 c1792 Collection (fonds) 2 leaves Unknown
Jonathan Carter Hornblower (1753-1815) was the British inventor of the double-beat valve, the first reciprocating compound steam engine. Hornblower's invention, patented in 1781, was a steam engine with two cylinders, a significant contribution to efficiency. The firm of James Watt (Boulton & Watt) challenged his invention, claiming infringement of patent. With the decision against him, Hornblower lost the opportunity to further develop the compound engine. Hornblower patented other inventions, a rotative engine and a steam wheel, or steam engine, and amassed a fortune in engineering. Hornblower died in 1815.
Enclosed in a Goldsmiths' Library volume lettered 'Hornblower & Windwood-Address to Adventurers in the mines of Cornwall, 1788', including An address to the lords, adventurers and others, concern'd in the mines of Cornwall (1788; G.L. Cat. 13546).
Manuscript 'Reasons for Mr. Hornblower's petitioning the Honourable House of Commons for an Act to extend the term of his patent', [24 Feb 1792]; the patent had been granted in 1781 for 14 years, permitting the use of his steam engine in the Cornish mines. The case of James Watt is cited: in 1774 he obtained an extension of a patent 'of a similar nature, for 25 years certain'.
Access to this collection is unrestricted for the purpose of private study and personal research within the supervised environment and restrictions of the Library's Palaeography Room. Uncatalogued material may not be seen. Please contact the University Archivist for details.
Copies may be made, subject to the condition of the original. Copying must be undertaken by the Palaeography Room staff, who will need a minimum of 24 hours to process requests.
English
9¼" x 7¼"
Collection level description.
Further material relating to Jonathan Hornblower may be found in the Royal Cornwall Museum, Truro, and the Birmingham City Archives.
See Journal of the House of Commons, XLVII.
Compiled by Sarah Aitchison as part of the RSLP AIM25 Project. Compiled in compliance with General International Standard Archival Description, ISAD(G), second edition, 2000; National Council on Archives Rules for the Construction of Personal, Place and Corporate Names, 1997. Aug 2001 Civil law Cornwall Engineering England Europe Hornblower , Jonathan Carter , 1753-1815 , engineer Intellectual property Patents UK Western Europe Legal systems Law London
Fonte imediata de aquisição ou transferência
Enclosed in a Goldsmiths' Library volume lettered 'Hornblower & Windwood-Address to Adventurers in the mines of Cornwall, 1788', including An address to the lords, adventurers and others, concern'd in the mines of Cornwall (1788; G.L. Cat. 13546).
Zona do conteúdo e estrutura
Âmbito e conteúdo
Manuscript 'Reasons for Mr. Hornblower's petitioning the Honourable House of Commons for an Act to extend the term of his patent', [24 Feb 1792]; the patent had been granted in 1781 for 14 years, permitting the use of his steam engine in the Cornish mines. The case of James Watt is cited: in 1774 he obtained an extension of a patent 'of a similar nature, for 25 years certain'.
Avaliação, seleção e eliminação
Incorporações
Sistema de arranjo
Zona de condições de acesso e utilização
Condições de acesso
Access to this collection is unrestricted for the purpose of private study and personal research within the supervised environment and restrictions of the Library's Palaeography Room. Uncatalogued material may not be seen. Please contact the University Archivist for details.
Condiçoes de reprodução
Copies may be made, subject to the condition of the original. Copying must be undertaken by the Palaeography Room staff, who will need a minimum of 24 hours to process requests.
Idioma do material
- inglês
Sistema de escrita do material
- latim
Notas ao idioma e script
English
Características físicas e requisitos técnicos
Instrumentos de descrição
Collection level description.
Zona de documentação associada
Existência e localização de originais
Existência e localização de cópias
Unidades de descrição relacionadas
Further material relating to Jonathan Hornblower may be found in the Royal Cornwall Museum, Truro, and the Birmingham City Archives.
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Pontos de acesso - Assuntos
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Regras ou convenções utilizadas
Compiled in compliance with General International Standard Archival Description, ISAD(G), second edition, 2000; National Council on Archives Rules for the Construction of Personal, Place and Corporate Names, 1997.
Estatuto
Nível de detalhe
Datas de criação, revisão, eliminação
Línguas e escritas
- inglês