Journal

4 788 résultats

Trier parTitre Z - A

Pertinence Auteur A - Z Auteur Z - A Titre A - Z Titre Z - A Prix croissant Prix décroissant Libraire A - Z Libraire Z - A

Par page25

25 50 100

Filtres

Sumer - A Journal of Archaeology & History in Arab WorldBiblio.com

Vol. XXXIII No. I/1977

Metalworks Handwritten DiaryBiblio.com

Victorian Manuscript Diary of Lead Works Ammunition Manufacturing and Metallurgical Innovation During The Industrial Revolution 1851-1853

1851218121851. Science Medicine & TechnologyMilitary & WarLabor Environment & Welfare Manuscript industrial journal documenting the British lead shot industry patent culture and metallurgical manufacturing during the height of the Victorian industrial economy. Primarily England and Wales 1851-1853. Approximately 50 pages written in ink in a highly legible hand bound in an octavo-format notebook measuring 8 x 6.5 inches. Quarter red leather over marbled boards. Ownership inscription to front endpaper: "John R. Tracy / Nov 1852." An unusually detailed firsthand record of mid-19th-century industrial innovation centered on the manufacture of lead shot at a moment when Britain's expanding military infrastructure mining economy and heavy industry were increasingly dependent on large-scale metallurgical production. Compiled by John R. Tracy the manuscript documents the development and attempted commercialization of what he repeatedly identifies as a "Shot Patent" likely an improvement to the production or grading of lead shot associated with the traditional shot tower process. Rather than functioning merely as a technical notebook the volume captures the broader industrial system surrounding invention in Victorian Britain: factory inspections patent negotiations industrial espionage concerns business networking licensing discussions and the competitive culture of ironmasters and lead manufacturers operating across England and Wales. The manuscript opens in October 1852 and proceeds through a sequence of dated entries recording Tracy's travel and meetings with manufacturers engineers and industrial firms. These entries reveal the practical realities of introducing a new industrial process into Britain's established lead trade where manufacturers guarded technical methods closely and approached outside inventors with skepticism. On October 26 Tracy records receiving "letters of introduction to Messrs. A. B. Brown & Green" and to "Platt Bros." illustrating the importance of personal industrial networks and recommendation systems within Victorian manufacturing culture. Another entry dated November 5 describes a meeting arranged through "Mr. Maxwell of Messrs. Norton Theakers" followed by Tracy's note of "Much of 'shot etc.'-a rather funny conversation but on the whole. appointment for tomorrow @ 10 1/2" capturing the uncertain and often informal negotiations surrounding industrial patents. Particularly revealing is Tracy's November 6 account of visiting the Flintshire lead smelting firm Newton Keates & Co. where he describes the guarded and competitive atmosphere surrounding lead shot production. Tracy recounts that permission to inspect the works was "at-first-refused in rather a John Bullish manner" before eventually being granted under supervision. He writes perceptively about the mixture of suspicion and curiosity that surrounded industrial patents noting that the proprietor "wished to know the price upon the Patent" but that he deliberately withheld a valuation because "there was no use to let him have the bait to look at before he was hungry enough to bite." The language throughout reveals how industrial innovation in this period depended not simply on invention itself but on strategic secrecy negotiation and control over proprietary manufacturing knowledge. One of the manuscript's most important sections is a full-page listing titled "Lead Works in the United Kingdom in 1852" identifying more than two dozen lead works and manufacturers across Britain. Firms including Walker Parker & Co. Newton Keates & Co. and Richmond Anchor Co. are listed alongside annotations describing their production specialties including "sheet" "pipes" "shot" "white lead" and "pig." The page functions as a rare industrial survey of Britain's lead industry during a period of rapid military and industrial expansion documenting the interconnected infrastructure supporting ammunition production construction materials piping paint manufacture and metallurgical processing. Later entries contain detailed observations of shot-manufacturing equipment at a Chester lead works including descriptions of shot towers ranging from 76 to 96 feet in height and the use of perforated metal grading systems to regulate molten lead as it fell into spherical form. Tracy records the operation with notable technical specificity: "The shot are dropped through a perforated metal-the holes being smaller at the upper end and increasing in size as you get to the lower cylinder." Accompanying diagrams depict feed bins drop tubes sieves and sorting mechanisms apparently intended to improve efficiency or shot-size consistency beyond earlier tower methods. Tracy critically evaluates the machinery as well remarking that certain sieve boxes "seem inadequate for the work" and comparing the process economically to that employed by "D. De Roy & Co.'s works." The notebook therefore preserves not merely abstract invention but active industrial analysis and comparative manufacturing study. The manuscript is documenting metallurgy patent culture and military-industrial production in the decades preceding the major arms expansions of the later nineteenth century. Lead shot remained essential not only for hunting and civilian markets but for military supply systems deeply tied to imperial expansion and industrial warfare. Tracy's notebook reveals the increasingly professionalized yet still highly personal world through which industrial technologies circulated in Victorian Britain where factory visits guarded conversations handwritten technical sketches and negotiated introductions formed the practical infrastructure of innovation. Spine mostly perished with binding delicately held together; boards rubbed and worn. Interior exceptionally clean and highly legible throughout. A substantial and unusually revealing manuscript documenting Victorian industrial manufacturing patent strategy and the lead shot trade during a formative period in British industrial history. unknown

Max Rambod Inc. · États-Unis725,00 $US≈ 613,42 €

Journal

Filtres actifs

Siècle

Langage

Ajouté

Sujets

Catalogues

Filtres actifs

Siècle

Langage

Ajouté

Sujets

Catalogues

Filtres actifs

Siècle

Langage

Ajouté

Sujets

Catalogues