BESSEMER

[ H.M. Patent Office, London. ] Manuscript document containing 'Searches' into the 'Novelty' and 'Validity' of around 150 patent applications, with diagrams and index.

Author: 
H.M. Patent Office, London (now the Intellectual Property Office) [ Sir Henry Bessemer; Sir John Coode; Gusttav Overbeck; Crosse & Blackwell; Wedgwood; Bryant & May ]
Publication details: 
H.M. Patent Office, 25 Southampton Buildings, London, WC. 13 March 1878 to 19 December 1882.
£450.00

The Patent Office - now the Intellectual Property Office - was established by the Patent Law Amendment Act of 1852, which simplified the procedure for obtaining patents of invention and reduced costs. In 1883 another Act of Parliament brought into being the office of Comptroller General of Patents, with, according to the National Archives, 'a staff of patent examiners to carry out a limited form of examination; mainly to ensure that the specification described the invention properly, but without any investigation into novelty'.

[Mary Cowden Clarke, writer, daughter of Vincent Novello.] Five Autograph Letters Signed to the pianist Clara Angela Macirone, sending news from Italy, on topics including music, the Risorgimento, the building of Villa Novello, Carlo Poerio.

Author: 
Mary Cowden Clarke (1809-1898), daughter of Vincent Novello (1781-1861), and wife of Charles Cowden Clarke (1787-1877), writers and Shakespeare scholars [Clara Angela Macirone]
Publication details: 
Between 1856 and 1879. The first two (1856 and 1859) from Maison Quaglia, au Port, Nice, France; the last three (1864, 1876, 1879) from Villa Novello, Genoa, Italy.
£450.00

Closely and neatly written on five bifoliums. Text totalling 14pp., 12mo. In fair condition, on aged and worn paper, with minor damage at head of third letter, and wear to extremities of the fourth. The first two letters (1856 and 1859) addressed formally, the third to 'Angela & Minnie', and the fourth and fifth to 'Angela'. She writes the first letter (1856) before her sister Clara's 'approaching visit to England', to thank Macirone for writing to express the pleasure she had received from Charles Cowden Clarke's sister's writing.

Autograph Letter Signed T. Sterry Hunt, American geologist and chemist, to William Bragge, physicist, on improvements to the Bessemer process (steel) and an American visiting Britain for steel-related business..

Author: 
Thomas Sterry Hunt, American geologist and chemist
T. Sterry Hunt, American geologist/chemist, ALS to William Bragge, physicist
Publication details: 
Montreal, 16 Dec. 1870
£225.00
T. Sterry Hunt, American geologist/chemist, ALS to William Bragge, physicist

Two pages, 12mo, good condition. He presumes on the acquaintance struck up when Bragge was in Montreal two years previously and knowing your great practical interest in the Bessemer I take the liberty to introduce to you Mr [Barner?] the agent of my friend Mr Holley - the manager of the Troy Steel Works who has introduced some very important improvements in the management of the Bessemer process, now successfully adopted in America & visits England for the purpose of there making them business.

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