Brinsmead Patents

BRINSMEAD
in London

1862

Diagrams showing the action of Mr. Brinsmead's Piano,
Cassell's Illustrated Exhibitor: Containing about Three Hundred, 1862, p. 103

Patent of 1862 : "Brinsmead. 11th February 1862. - 358. JOHN BRINSMEAD, of Charlotte Street, Fitzroy Square, in the County of Middlesex, Pianoforte Manufacturer, for an invention for Improvements in piano-fortes. Letters Patent sealed." Chronological and Descriptive Index of Patents Applied for and Patents, 1863, p. 27
"Feb. 11, 1862. - JOHN BRINSMEAD. Grand and upright mechanism for producing «a perfect check, great power, ... and quick repetition.»" The History of the Pianoforte: With an Account of the Theory of Sound and ..., Edgar Brinsmead, 1889, p. 215

1868

Patent of 1868 : "Brinsmead. 6th March 1868. - 774. John Brinsmead, of Wigmore Street, in the County of Middlesex, Piano-forte Manufacturer, for an invention for improvements in the construction of pianofortes. Letters Patent sealed." Chronological index of patents applied for and patents granted ..., 1869, p. 55
"March 6, 1868. - J. BRINSMEAD. [Perfect check repeater action] for producing perfection of touch with increased durability." The History of the Pianoforte: With an Account of the Theory of Sound and ..., Edgar Brinsmead, 1889, p. 220

1871

Patent of 1871 : "March 5, 1871. – J. BRINSMEAD. Improvements in piano action." The History of the Pianoforte: With an Account of the Theory of Sound and ..., Edgar Brinsmead, 1889, p. 222

1873

Patent of 1875 : "March 6, 1875. - J. BRINSMEAD. Perfect check repeater action for producing increased durability as well as perfection of touch." The History of the Pianoforte: With an Account of the Theory of Sound and ..., Edgar Brinsmead, 1889, p. 225

1879

Patent of 1879 : "March 20, 1879. - J. BRINSMEAD. (1) Sostenente sounding-board, glued on rim of soft wood. (2) New form of metal plates and supports. (3) Improved repeater check action. (4) Improved sticker action. (5) Various appliances of tone-sustaining pedal. (6) Strength of sounding-board regulated by springs." The History of the Pianoforte: With an Account of the Theory of Sound and ..., Edgar Brinsmead, 1889, p. 227

1881

Patent of 1881 : "May 21, 1881. - T. J. BRINSMEAD. Improvements in the construction of the frames and tuning-pins of pianofortes, dispensing with the old system of tuning by pins driven into wood and with the necessity of using any wood in the back and wrest-plank.
(a) By employing metal screw tuning-pins which are turned with the greatest facility, increasing or decreasing the tension of the strings.
(b) Constructing the frame which takes the strain of the strings entirely of metal, ensuring the frame from the action of damp or extreme heat." The History of the Pianoforte: With an Account of the Theory of Sound and ..., Edgar Brinsmead, 1889, p. 230
Patent of 1881 : "Aug. 16, 1881. – J. BRINSMEAD. Improved check action and leverage sounding-board for pianofortes." The History of the Pianoforte: With an Account of the Theory of Sound and ..., Edgar Brinsmead, 1889, p. 231

1885

Patent of 1885 : "May 12, 1885.- JOHN BRINSMEAD. (1) Dispensing with wooden bracings and framing and constructing the metal string frame so as sufficiently to resist the tension of the strings. (2) Enabling the sounding-board to be bellied so as to compensate for inequalities in its several parts, and fixing the sounding-board to the string-frame, whereby the instrument is completely self-contained and can readily be inserted in any case." The History of the Pianoforte: With an Account of the Theory of Sound and ..., Edgar Brinsmead, 1889, p. 239

Our Inventors' Column.
"We give here, week by week, a terse description of such of the many inventions as we think may be of use to our readers. Where it is possible, the number of the patent is quoted, to enable those who desire fuller information to procure the specification from the Patent Office in Cursitor-street, Chancery-lane. We shall, generally speaking, confine ourselves to the more recent inventions; but it often happens that an article comes under our notice which, although not quite novel, is worthy of mention for its utility and ingenuity.
In such a case we should not hesitate to refer our readers to it. And while we thus increase the interest of our pages, we at the same time assist the inventors by giving greater publicity to their inventions (KNOWLEDGE being a popular magazine) than is accorded by the most excellent trade journals.
IMPROVEMENTS IN BRINSMEAD PIANOS.
PIANOFORTES have hitherto been regarded in a double aspect-both as musical instruments and as articles of household ornamentation; and we make bold to say that, with many people, the latter consideration has predominated to such an extent as to give rise to the practice, on the part of unprincipled manufacturers, of enclosing worthless mechanisms-from a musical point of viewin cases constructed simply with a view to their effective appearance.
The purchasers of these "musical boxes" soon discover, however, that they have sacrificed their sense of sound to their sense of sight, but too late in many cases to remedy the evil; for pianoforte-buying with most people is an affair of once for all time rather than an everyday occurrence.

With the idea of remedying to a great extent this state of things, the well-known firm of Brinsmead & Sons have introduced, and are exhibiting at the Inventions Exhibition, an improvement in the construction of pianos which cannot fail to commend itself to all concerned.
The pianoforte is now manufactured by them and shown complete, irrespective of the cabinet-work, which is altogether a subsidiary after-consideration. It is not merely the ordinary "Brinsmead" previous to encasement that is exhibited, however, but a complex development of the latest inventions of the firm, resulting in a mechanical structure challenging approval or condemnation on its merits as a tone-producer alone, an inspection and study of which convinces one that a forward step has been taken by the manufacturers in the interests of the musical art.

Fig. 1. Front View.

Fig. 2. - Back View.
The illustrations given herewith show the front and back view of their Patent Consolidated Iron Piano; an examination of these will present a better idea of the mechanical improvements effected than could be afforded by mere verbal description." Knowledge: An Illustrated Magazine of Science, 18/09/1885, p. 258

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