To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

Francis Blake (telephone)

From Wikipedia, the free encyclopedia

Francis Blake
Блэйк.png
Born(1850-12-25)December 25, 1850
Needham, Massachusetts
DiedJanuary 20, 1913(1913-01-20) (aged 62)
Weston, Massachusetts
OccupationInventor
Spouse(s)
Elizabeth Livermore Hubbard
(m. 1874)

Francis Blake, Jr. (December 25, 1850 – January 20, 1913) was an American inventor.

Biography

Francis Blake was born in Needham, Massachusetts on December 25, 1850, the son of Caroline Burling (Trumbull) and Francis Blake, Sr.[1]

In 1879, he invented a carbon microphone for use in the telephone, and patented[2] it shortly after Thomas Edison invented a similar microphone that also used carbon contacts. Blake used a carbon button design that initially would not stay in adjustment, but with later improvements proved to be workable. Alexander Graham Bell hired Blake and put him to work with Emile Berliner who also invented a carbon microphone. The improved Berliner-Blake microphone was standard with the Bell company for many years.[3]

Blake worked on the United States Coast Survey from his teenage years through early adulthood (1866-1878). He was a physicist and an amateur photographer.

In 1874, Blake married Elizabeth Livermore Hubbard (1849-1941) whose father provided land in Weston, on which Blake designed and built an elaborate house where he conducted his electrical experiments. They had two children: Agnes (Blake) Fitzgerald (b. 1876) and Benjamin Sewall Blake (b. 1877).

Blake was elected a member of the American Antiquarian Society in 1900.[4]

He died at his home in Boston on January 20, 1913.[5]

Patents

  • Canadian patent 10021 for telephone transmitter, granted May 28, 1879, voided March 3, 1887 because of failure to manufacture telephone parts in Canada.
  • US patent granted in 1881

References

  1. ^ Bacon, Edwin M., ed. (1896). Men of Progress: One Thousand Biographical Sketches and Portraits of Leaders in Business and Professional Life in the Commonwealth of Massachusetts. Boston: The New England Magazine. pp. 948–950. Retrieved February 14, 2022 – via Internet Archive.
  2. ^ https://patentimages.storage.googleapis.com/ea/71/a4/ee75a276385b08/US250126.pdf[bare URL PDF]
  3. ^ Coe, pages 22, 33, 76
  4. ^ American Antiquarian Society Members Directory
  5. ^ "Francis Blake is Dead". The Marshfield News. Boston. January 30, 1913. p. 2. Retrieved April 8, 2020 – via Newspapers.com.
  • Lewis Coe, The Telephone and its Several Inventors, McFarland Publishers, 1995.
  • Elton W. Hall, Francis Blake: An Inventor's Life, Massachusetts Historical Society, 2004

External links

This page was last edited on 11 March 2022, at 20:31
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.