Slavoljub Eduard Penkala (; 20 April 1871 – 5 February 1922) was a

Croatia , image_flag = Flag of Croatia.svg , image_coat = Coat of arms of Croatia.svg , anthem = "Lijepa naša domovino"("Our Beautiful Homeland") , image_map = , map_caption = , capit ...

n engineer and

inventor An invention is a unique or novel device, method, composition, idea or process. An invention may be an improvement upon a machine, product, or process for increasing efficiency or lowering cost. It may also be an entirely new concept. If an ...

Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People E ...

Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken *Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwr ...

descent.

Biography

Eduard Penkala was born in Liptószentmiklós (now Liptovský Mikuláš), then part of

Austria-Hungary Austria-Hungary, often referred to as the Austro-Hungarian Empire,, the Dual Monarchy, or Austria, was a constitutional monarchy and great power in Central Europe between 1867 and 1918. It was formed with the Austro-Hungarian Compromise of ...

, to Franciszek Pękała, who was of Polish heritage, and Maria Pękała (née Hannel), who was of Dutch descent. He attended the

University of Vienna The University of Vienna (german: Universität Wien) is a public research university located in Vienna, Austria. It was founded by Duke Rudolph IV in 1365 and is the oldest university in the German-speaking world. With its long and rich histor ...

and Royal Saxon Polytechnic Institute, graduating from the latter on March 25, 1898, and going on to earn a

doctorate A doctorate (from Latin ''docere'', "to teach"), doctor's degree (from Latin ''doctor'', "teacher"), or doctoral degree is an academic degree awarded by universities and some other educational institutions, derived from the ancient formalism ''l ...

organic chemistry Organic chemistry is a subdiscipline within chemistry involving the scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms.Clayden, J.; ...

. During his studies, he attended violin lessons where he met his future wife, pianist Emily Stoffregen. He then moved with his wife to

Zagreb Zagreb ( , , , ) is the capital (political), capital and List of cities and towns in Croatia#List of cities and towns, largest city of Croatia. It is in the Northern Croatia, northwest of the country, along the Sava river, at the southern slop ...

(which was then in the

Kingdom of Croatia-Slavonia The Kingdom of Croatia-Slavonia ( hr, Kraljevina Hrvatska i Slavonija; hu, Horvát-Szlavónország or ; de-AT, Königreich Kroatien und Slawonien) was a nominally autonomous kingdom and constitutionally defined separate political nation with ...

). To mark his loyalty to his new homeland, he took on the Croatian name Slavoljub ( Croatian for "

slavophile Slavophilia (russian: Славянофильство) was an intellectual movement originating from the 19th century that wanted the Russian Empire to be developed on the basis of values and institutions derived from Russia's early history. Slavoph ...

"), becoming a naturalized

Croat The Croats (; hr, Hrvati ) are a South Slavic ethnic group who share a common Croatian ancestry, culture, history and language. They are also a recognized minority in a number of neighboring countries, namely Austria, the Czech Republic, Ge ...

. He became renowned for further development of the

mechanical pencil A mechanical pencil, also clutch pencil, is a pencil with a replaceable and mechanically extendable solid pigment core called a "lead" . The lead, often made of graphite, is not bonded to the outer casing, and can be mechanically extended as its ...

(1906) - then called an "automatic pencil" - and the first solid-ink

fountain pen A fountain pen is a writing instrument which uses a metal nib to apply a water-based ink to paper. It is distinguished from earlier dip pens by using an internal reservoir to hold ink, eliminating the need to repeatedly dip the pen in an inkw ...

(1907). On 24 January

1906 Events January–February * January 12 – Persian Constitutional Revolution: A nationalistic coalition of merchants, religious leaders and intellectuals in Persia forces the shah Mozaffar ad-Din Shah Qajar to grant a constitution, ...

he registered the patent for an automatic pencil. Collaborating with an entrepreneur by the name of Edmund Moster, he started the Penkala-Moster Company and built a pen-and-pencil factory that was one of the biggest in the world at the time. As the business grew, a second factory was set up in Berlin. The company, now called TOZ Penkala, still exists today. He also constructed the first Croatian aircraft to fly in the country, the Penkala 1910 Biplane, flown by Dragutin Novak, who was also the first Croatian pilot. He constructed and invented many other products and devices, and held a total of 80

patent A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an enabling disclosure of the invention."A p ...

s. Among his patented inventions were: * a thermophore * a

hot water bottle A hot-water bottle is a bottle filled with hot water and sealed with a stopper, used to provide warmth, typically while in bed, but also for the application of heat to a specific part of the body. Early history Containers for warmth in bed wer ...

- his first patented invention, the "Termofor" * a type of bluing

detergent A detergent is a surfactant or a mixture of surfactants with cleansing properties when in dilute solutions. There are a large variety of detergents, a common family being the alkylbenzene sulfonates, which are soap-like compounds that are more ...

* a rail-car

brake A brake is a mechanical device that inhibits motion by absorbing energy from a moving system. It is used for slowing or stopping a moving vehicle, wheel, axle, or to prevent its motion, most often accomplished by means of friction. Background ...

* an anode battery He also founded another company called the Elevator Chemical Manufacturing Company, which produced various chemicals such as detergents, sealing wax, and "Radium Vinovica", a patent-medicine – like product that was billed as curing

rheumatism Rheumatism or rheumatic disorders are conditions causing chronic, often intermittent pain affecting the joints or connective tissue. Rheumatism does not designate any specific disorder, but covers at least 200 different conditions, including art ...

. He had four children with his wife, Emily. Penkala died in Zagreb at the age of 50, after catching

pneumonia Pneumonia is an inflammatory condition of the lung primarily affecting the small air sacs known as alveoli. Symptoms typically include some combination of productive or dry cough, chest pain, fever, and difficulty breathing. The severity ...

on a business trip. He was buried at the

Mirogoj Cemetery The Mirogoj City Cemetery (, hr, Gradsko groblje Mirogoj), also known as Mirogoj Cemetery ( hr, Groblje Mirogoj), is a cemetery park that is considered to be among the more noteworthy landmarks in the city of Zagreb. The cemetery inters members o ...

. Gradska groblja Zagreb: Slavoljub Eduard Penkala, Mirogoj RKT-78-I-117

References

External links

"About Eduard Slavoljub Penkala"
��Biography of Eduard Slavoljub Penkala at the web site of the book ''Penkala Writing Instruments'', by Miroslav Tischler.

��from the web site "Croatia - Overview of History, Culture and Science", by Darko Zubrinic.
TOZ-Penkala
{{DEFAULTSORT:Penkala, Slavoljub Eduard 1871 births 1922 deaths Austro-Hungarian businesspeople Aviation pioneers Burials at Mirogoj Cemetery Croatian Austro-Hungarians Croatian businesspeople Croatian inventors Croatian people of Dutch descent Croatian people of Polish descent Deaths from pneumonia in Yugoslavia TU Dresden alumni Naturalized citizens of Croatia Patent medicine businesspeople People from Liptovský Mikuláš Engineers from Zagreb

Biography

See also

References

External links