According to relevant foreign data, Jenner improved the vertical plane hook invented by American FzraMiller in 1860, and made a new automatic hook, which was patented on April 26th, 265438.
After continuous improvement, we got the second patent on April 29th, 1873. Now, all the trains in the world are connected to Jane's hook.
Zhan Tianyou, originally from Huiyuan, was born in Nanhai County, guangzhou fu, Guangdong Province (now Liwan District, Guangzhou).
He is an expert in modern railway engineering in China and is known as the first chief railway engineer in China. Responsible for the construction of Beijing-Zhangjiakou Railway and other projects, known as "the father of Chinese railways".
Statue of Zhan Tianyou
Zhan Tianyou hooks are composed of two pairs of hooks with roughly the same shape and opposite directions, which are respectively packaged at both ends of the bottom beam of the trunk. When two wheels collide, the protruding part on the left in the figure below collides with the small bump in the center of another figure. When the small bump retracts, the left protruding part rotates to the middle and engages with the other side, and the plug automatically drops to fix the bump by its own weight to complete the automatic hook.
? Graphic when the hook is open.
Complete the automatic hook diagram
The picture below is not Jenkins train hook.