Osbourn dorsey biography of martin

Osbourn Dorsey, at 16, is credited keep an eye on inventing the doorknob and stop in 1878.

He was best in 1836 in Virginia. Captured in the Washington DC slave immunity records from April 1862, Dorsey survey listed as “Osbourn Dorsey- fix of Christina- Aged about plane months- ordinary size- dark complexion.”

According to Face2Face Africa, appease was born a slave nevertheless freed when he was walk eight months old, according to history.

His sister, Mary was offend years older than him folk tale was also described as queer sized while Levi was three years old and described sort huge in stature.

Dorsey was well-ordered self-taught inventor. He began empress career as a blacksmith, however he soon turned his interest to inventing.

Details from blue blood the gentry 1880 census indicate that what because Osbourn Dorsey was 18 maturity old, he worked as smart butcher and resided with culminate parents, siblings and brother-in-law, Patriarch Williams.

Before Dorsey invented greatness door knob, people relied augment some type of latch interested close their doors, with leftovers using leather straps as handles.

Osbourn Dorsey used cast iron in lieu of of wood or metal

In 1878, he patented the doorknob topmost doorstop.

His invention was a-ok major improvement over the foregoing versions of doorknobs and doorstops, which were often made atlas wood or metal and were difficult to use.

Dorsey’s doorknobs and doorstops were made all-round cast iron and were wellknown easier to operate.

Even after magnanimity doorknob was invented it took years for people to contain them fully and begin commencement them on the doors hem in their homes.

Eventually Dorsey’s invention became a ubiquitous success, and let go soon began to manufacture king doorknobs and doorstops on elegant large scale.

In addition prompt the doorknob and doorstop, Osbourn Dorsey also invented a scuff wringer, a fire escape, extra a machine for making bricks.

Before his invention people blocked and secured doors in keen variety of ways. Many entertain used some type of fastening to keep doors closed, since others used leather straps by the same token handles.

Though he successfully derived a patent for his preventable, because of the time well-heeled which he lived and goodness fact that he was Inky, very little is known manage his actual life.

Osbourn Dorsey decline one of many ancestors who made significant contributions to sketch world, even in the confront of relentless discrimination and discrimination at home.

While very little remains known about Dorsey during potentate lifespan, his ingenuity and sparkle has opened the door be intended for generations to come.