WebFeb 24, 2012 · L. P. Ray invented a device with a metal plate attached to a wooden handle used to collect piles of swept dust or trash. This device is in common use today, and is known as a "dustpan".... http://www.blackhistoryheroes.com/2013/02/science-and-technology-early-african.html

We Buy Black - Lloyd Ray was an author and inventor who

WebApr 3, 2014 · Frederick McKinley Jones was born in Cincinnati, Ohio, on May 17, 1893 to a white father and black mother. His mother deserted him when he was a young child. His father struggled to raise him on... WebFeb 9, 2024 · The first dustpan was invented by T.E. McNeill an American inventor in 1858 for which he was granted a United States patent. Lloyd P. Ray, an African American made improvements to the dustpan by the addition of a short wooden handle and a collection plate made of metal and this invention was patented in 1897. What is the purpose of … phoenix litho group

Black Inventors

WebMar 23, 2016 · Ray Machine bought the patent for this table crumber in the late 1950s from Baltimore restaurateur John Henry Miller, who owned Miller Brothers Restaurant, the place to eat and be seen in Baltimore... WebIn less technical terms, a broom is a brush with a long handle that is usually used in combination with a dustpan. And yes, brooms serve a purpose other than being a witch’s method of transportation. ... Flat brooms were invented in the early 19 th century by Shakers (the United Society of Believers in Christ’s Second Appearance). By 1839 ... Web一种提高构造柱顶部砼成型质量的新型工具式簸箕模板，它涉及建筑工程模板技术领域，它包含簸箕模板、插销、导向槽、活动式支撑、插入式钢板；簸箕模板的两侧侧板上平行插设有两根插销，导向槽固定在簸箕模板的底部，用于堵住簸箕模板与构造柱之间的缝隙；活动式支撑的一端设有合页 ... how do you extract oil from lavender