Sushil Chandra Roy Chowdhury
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Sushil Chandra Roychowdhury | |||
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| Born | 18 September 1898 | ||
| Died | 13 May 1978 (aged 80) | ||
| Nationality | Indian | ||
| Citizenship | India | ||
| Occupation |
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| Organization | Lighting Department of Calcutta Municipal Corporation, Defence Department, Government of India | ||
| Known for | Automatic Time Switch, Auto Switch, "Pulpo"-Synthetic Polymer | ||
Sushil Chandra Roychowdhury (18 September 1898 – 13 May 1978)[1] was an India|Indian scientist, and first in World Inventor[1] of Time switch|Automatic Time Switch[2][3][4] and Auto Switch[5][6] in 1933. He also made the "Pulpo-Polymer|Synthetic Polymer"[7][8] and 'Susilite'[9]
Early life and education
Sushil Chandra Roychowdhury was born in Idilpur[4], Faridpur District|Faridpur district[10] [4]in present day Bangladesh.
He did his schooling from St. Xaviers College Calcutta|St. Xaviers College, Calcutta[4][10] and completed his education at the National Council of Education, Jadavpur[4][10] [2](the present Jadavpur University|Jadavpur Engineering College).
Career
File:Young_Sushil_Chandra_Roychowdhury_at_work_-_on_the_cover_of_Industrial.jpg|thumb|Young Sushil Chandra Roychowdhury at work - on the cover of Industrial India May, 1934 Sushil Chandra joined the Calcutta Municipal Corporation[2] as Electric Inspector[3][11], at the urge of Subhas Chandra Bose|Netaji.[10] During his service period in the Lighting|Lighting Department of Calcutta Corporation[3][11], he was authorized to frame new lighting rules for all Movie theater|cinemas, Theatre|theatres, and other public resorts within the Calcutta Corporation area.[10][3] During the period 1933-36, he invented the Time switch|Automatic Time Switch[4] [2][3][5]and the Auto Switch[6][5][12]. The Indian Government acknowledged his work in the Annual Report of the Patent Office for the year 1933.[2] He sold his papers to a british firm, Messr H L Rochet and Company in 1934[2]. Bidhan Chandra Roy|Dr. B C Roy remarked that "this is an absolutely original invention"[5] calling him "Scientist".[10]
Later, he invented a novel versatile plastic named "Pulpo".[7][4] The Pulpo Products Company, Ltd, manufacted domestic goods from this.[8] He also developed 'Susilite' - a new powdered form of bakelite.[9]
References
- ↑ 1.0 1.1 THE EASTERN AGE, Calcutta (18 September 1998). "OBITUARY: BIRTH CENTENARY" (PDF). Wikimedia Commons.
{{cite web}}: CS1 maint: url-status (link) - ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Ajanta Chakraborty, The Statesman, Calcutta (20 October 1998). "How city rejected a pioneer 65 years ago". Retrieved 29 May 2021.
{{cite web}}: CS1 maint: multiple names: authors list (link) CS1 maint: url-status (link) - ↑ 3.0 3.1 3.2 3.3 3.4 The Calcutta Municipal Gazette (12 January 1935). "New Lighting Rules For Theatres and Cinemas". Wikimedia Commons. Retrieved 29 May 2021.
{{cite web}}: CS1 maint: url-status (link) - ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 ঘোষ আশিস, বর্তমান পত্রিকা (29 September 1998). "এক বাঙালি আবিষ্কারকের জন্মশতবর্ষ". Wikimedia Commons. Retrieved 29 May 2021.
{{cite web}}: CS1 maint: url-status (link) - ↑ 5.0 5.1 5.2 5.3 Industrial India (May 1934). "AUTO SWITCH INVENTION". Wikimedia Commons. Retrieved 29 May 2021.
{{cite web}}: CS1 maint: url-status (link) - ↑ 6.0 6.1 The Calcutta Municipal Gazette (2 March 1934). "Auto-switch Invention". Wikimedia Commons. Retrieved 29 May 2021.
{{cite web}}: CS1 maint: url-status (link) - ↑ 7.0 7.1 Hindustan Standard (15 April 1940). "NEW TYPE OF PLASTIC, Invented By Mr. S. C. Rae Choudhury". Wikimedia Commons. Retrieved 29 May 2021.
{{cite web}}: CS1 maint: url-status (link) - ↑ 8.0 8.1 The Mordern Review (November 1940). ""Pulpo" Products". Wikimedia Commons. Retrieved 29 May 2021.
{{cite web}}: CS1 maint: url-status (link) - ↑ 9.0 9.1 Hindustan Standard (24 January 1942). "'SUSILITE'". Wikimedia Commons. Retrieved 29 May 2021.
{{cite web}}: CS1 maint: url-status (link) - ↑ 10.0 10.1 10.2 10.3 10.4 10.5 The Hindustan Standard (17 May 1978). "Obituary: Sushil Chandra Roychowdhury". Wikimedia Commons. Retrieved 29 May 2021.
{{cite web}}: CS1 maint: url-status (link) - ↑ 11.0 11.1 THE AMRITA BAZAR PATRIKA (2 July 1933). "BY THE WAY". Wikimedia Commons. Retrieved 29 May 2021.
{{cite web}}: CS1 maint: url-status (link) - ↑ ADVANCE, AUTO SWITCH (9 March 1934). "Interesting Invention Of City Officer".
{{cite web}}: CS1 maint: url-status (link)
External links
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