Frank Shuman (/ˈʃuːmən/; January 23, 1862 – April 28, 1918) was an American inventor, engineer and solar energy pioneer known for his work on solar engines, especially those that used solar energy to heat water that would produce steam.
Early life
Shuman was born in 1862 in Brooklyn, New York. At 18 he skipped college and took up work as a chemist at an aniline dye company in West Virginia. In 1891 he moved to Philadelphia to work with his uncle Frank Schumann, who had kept the original German spelling of the family name.[1] Schumann was president of Tacony Iron & Metal Works, the company contracted to cast the statue of William Penn for the Philadelphia City Hall, and Shuman was assigned with devising a method of electroplating the statue with layers of protective aluminium.[2]
Career
In 1891[3] Frank Shuman invented wired safety glass, for which he was granted a patent in 1892.[4] Additional patents were issued relating to the process of making wire glass and machines for making wire glass. In 1914 Shuman invented a process for making laminated safety glass, called safety glass,[5] and manufactured by the Safety Glass Company. In 1916 he patented a "Danger Signal" for railroad crossings,[6] as well as the use of liquid oxygen or liquid air to propel a submarine.[7]
On August 20, 1897, Shuman invented a solar engine that worked by reflecting solar energy onto one-foot square boxes filled with ether, which has a lower boiling point than water, and containing black pipes on the inside, which in turn powered a toy steam engine. The tiny steam engine operated continuously for over two years on sunny days next to a pond at the Shuman house.
In 1908 Shuman formed the Sun Shine Power Company with the intent to build larger power plants. He, along with his technical advisor A.S.E. Ackermann and British physicist Sir Charles Vernon Boys,[citation needed] developed an improved system using mirrors to reflect solar energy upon collector boxes, increasing heating capacity so much that water could now be used instead of ether. He also developed a low-pressure steam turbine, since most 1910 vintage steam engines were built for steam and not sun-heated water. Shuman's turbine processed energy four times faster than any engine of his day. Shuman then constructed a full-scale steam engine that was powered by low-pressure steam, enabling him to patent the entire solar engine system by 1912. Scientific American again featured Shuman in its issues of February 4, 1911, and September 30, 1911.
Shuman built the world’s first solar thermal power station in Maadi, Egypt (1912-1913). Shuman’s plant used semi circle shaped troughs to power a 60-70 horsepower engine that pumped 6,000 gallons of water per minute from the Nile River to adjacent cotton fields. His system included a number of technological improvements, including absorption plates with dual panes separated by a one-inch air space. Although the outbreak of World War I and the discovery of cheap oil in the 1930s discouraged the advancement of solar energy, Shuman’s vision and basic design were resurrected in the 1970s with a new wave of interest in solar thermal energy.[8]
We have proved the commercial profit of sun power in the tropics and have more particularly proved that after our stores of oil and coal are exhausted the human race can receive unlimited power from the rays of the sun.
Shuman died in his home on Disston Street in Tacony in 1918.[10] His large home and laboratories still stand in the Tacony section of Philadelphia, as an apartment house and garages. They were added to the historic register in October 2019, meaning they cannot be demolished or significantly altered without the Historical Commission's permission.[11]
Patents
Number
Date filed
Issue date
Description
D37803
December 18, 1905
January 30, 1906
Design for Sheet-Glass
D43349
August 19, 1910
December 17, 1912
Design for Sheet-Glass
483020
July 6, 1892
September 20, 1892
Process of Embedding Wire-Netting in Glass
483021
July 6, 1892
September 20, 1892
Machine for Embedding Wire-Netting in Glass
510716
September 22, 1893
December 12, 1893
Machine for Embedding Wire in Glass
510822
December 29, 1892
December 12, 1893
Process of Manufacturing Wire-Glass
510823
December 29, 1892
December 12, 1893
Machine for Manufacturing Wire-Glass
531874
July 5, 1894
January 1, 1895
Process of Cutting Wire-Embedded Glass
542539
November 14, 1894
July 9, 1895
Apparatus for Removing Obstructions from Car-Tracks
545826
May 3, 1894
September 3, 1895
Ladle for Dipping Glass
546196
May 28, 1894
September 10, 1895
Apparatus for Embedding Wire in Glass
561920
November 14, 1892
June 9, 1896
Machine for Embedding Wire in Glass
574458
November 23, 1893
January 5, 1897
Machine for Embedding Wire in Glass
593440
September 17, 1896
November 9, 1897
Process of Treating Metal Structures
605754
January 20, 1896
June 14, 1898
Process of and Machine for Embedding Wire in Glass
647334
July 21, 1897
April 10, 1900
Process of Making Rolls
661649b
July 21, 1900
November 13, 1900
Mercerizing-Machine
670438a
September 20, 1900
March 26, 1901
Machine for Molding Glass
671240
October 13, 1900
April 2, 1901
Process of Extinguishing Fires
673067
September 20, 1900
April 30, 1901
Mercerizing-Machine
727004a
June 14, 1902
May 5, 1903
Meshed Wire for Wire-Glass Manufacture
727005a
June 14, 1902
May 5, 1903
Manufacture of Wire-Glass
727006a
June 14, 1902
May 5, 1903
Method of Manufacturing Wire-Glass
727007a
June 14, 1902
May 5, 1903
Process of Manufacturing Wire-Glass
733286
January 13, 1903
July 7, 1903
Removable Pile for Forming Concrete Piles
733287
April 23, 1903
July 7, 1903
Process of Making Concrete Piles
733288
January 13, 1903
July 7, 1903
Removable Pile for Forming Concrete Piling
733335
June 4, 1903
July 7, 1903
Process of Forming Openings in the Ground
733336
April 23, 1903
July 7, 1903
Process of Forming Concrete Piles
733337
April 23, 1903
July 7, 1903
Process of Forming Concrete Piles
735680
April 23, 1903
August 4, 1903
Process of Making Concrete Piles
739268
June 8, 1903
September 15, 1903
Process of Making Concrete Piles
752003
April 23, 1903
February 9, 1904
Process of Forming Concrete Piles
756805
January 13, 1903
April 5, 1904
Removable Pile for Forming Concrete Piling
763212
February 5, 1904
June 21, 1904
Preparatory Pile for Use in Forming Concrete Piles
763213
February 25, 1904
June 21, 1904
Method of Forming Concrete Piles
786058
April 7, 1904
March 28, 1905
Process of Manufacturing Wire-Glass
792172a
March 20, 1905
June 13, 1905
Process of Making Wire-Glass
805936
January 9, 1905
November 28, 1905
Concrete Piling and Method for Making the Same
806755
April 21, 1904
December 5, 1905
Pile for Piers or Pier Casings
806587
April 21, 1904
December 5, 1905
Pier and Pier Casing
817595
April 21, 1904
September 18, 1906
Setting Concrete Piles
831481
July 26, 1905
April 10, 1906
Constructing Piles
875857
June 14, 1902
January 7, 1908
Method for the Manufacture of Wire-Glass
876307
June 14, 1902
January 7, 1908
Method for the Manufacture of Wire-Glass
889341
July 20, 1897
June 2, 1908
Roll and Process for Making Same
898517
May 31, 1906
September 15, 1908
Concrete Pile and the Process of Constructing the Same
899339b
December 22, 1905
September 22, 1908
Extracting Grease and Potash Salts from Wool
899440b
December 29, 1905
September 22, 1908
Apparatus for Extracting Grease and Potash Salts from Wool
At the 11th International Cairo Biennial of Contemporary Art in 2008-09, the Swiss artists couple Christina Hemauer and Roman Keller drew attention to Shuman's Sun Project.
Their contribution entitled "No1 Sun Engine" consisted of two parts: apart from a reconstruction of two segments of the solar engines, they built a stand providing information on Shuman's project and on solar energy in general. On the wall behind the information stand, there was a quote (in both English and Arabic) by Shuman: “One thing I feel sure of, and that is that the human race must finally utilize direct sun power or revert to barbarism.” Frank Shuman, 1914
Butti, Ken (1980). Golden Thread Twenty Five Hundred Years of Solar Architecture and Technology. Cheshire Books. ISBN0917352076. This book describes Shuman's work in solar power in both the US and Egypt. Includes photos.