February 25 - Sunday
Day of sobriety and non-alcoholic beer.
Day of drawing up maps of non-existent lands.
International Day of Multiple Sclerosis.
Day of struggle with the negative.
1721 Peter I established the Synod, the supreme body of the Church
1836 Samuel Colt received in the US the first patent for an automatic revolver.
About who actually developed the revolver Colt, there are still different versions. According to one of them, Samuel Colt himself, being a youthful in his youth, saw in the work of the mechanism for choosing the anchor rope of the cable the principle of the future legend of the Wild West. On the other, he trivialized the works of his accomplice, John Pearson. And, finally, there is information that the scheme of the revolver was proposed in the 1830s by the Englishman Charles Shirk, taking as a basis the drum collar of the Koller and the ideas of the Frenchman Marietta. However, all three versions converge in one: Colt was not a talented designer, he was more a successful and calculating businessman. On February 25, 1836, he received the first patent in the United States for a 6-gun 45-caliber revolver. In 10 days the Colt opens its own production. The model was first called "Paterson" by the name of the city where the Colt manufactory was deployed, but shortly it was called "Texas" for its popularity among the inhabitants of this state. In 1842 Colt's company went bankrupt, and he started developing submarine mines, which he even received from Congress 20,000 dollars. In early 1847, Colt received a large order from the captain of the rangers Samuel Walker, who highly appreciated the quality of his revolver, and resumed production at the Eli Whitney factory in Whitney-Wheel, Connecticut. The war between Texas and Mexico in 1845-1846 provided a steady sale of quick-fire revolvers among rangers. The new model was called the "Army Model of 1847" or "Walker Pistol."
1837 Thomas Davenport received a patent for a DC motor.
In 1833, a village blacksmith and self-taught electrician from the American outback, Thomas Davenport, learned that Joseph Henry had invented an electromagnet and was using it to enrich iron ore. Thomas Davenport bought the novelty of Henry, studied it and began to manufacture compact magnets. To insulate the wires in the course went his wife's wedding dress. Thomas Davenport cut it into ribbons and wrapped wires around them. Very soon the motor was ready - it was the first rotary DC electric motor. In 1835, Thomas Davenport showed the public a model of a circular railway, along which a small locomotive traveled. The diameter of the road was 1.2 meters. For a long time, Thomas Davenport could not patent his invention. For the time being there were no rules for patenting electric cars. And then, on February 25, 1837, he finally received a patent for "Improvement in motor technology with the help of magnetism and electromagnetism." The invention of Davenport has become famous. The press proclaimed a revolution in science. Davenport opened a workshop on Wall Street, began looking for investors, met Samuel Morse. Soon, Davenport founded the newspaper "The Electro-Magnet and Mechanics Intelligencer", for printing which used a printing machine, driven by an electric motor. However, he was not destined to see the wide implementation of his invention: Davenport's enterprise suffers a commercial failure, and Thomas returns to Vermont. He writes a book, but before he can finish it, he dies in 1851 in Salisbury. And his invention in subsequent years was applied to rail and trackless electrified transport, in cranes, at rolling mills, in automation devices, etc.