The sheets of rubber from which the uppers and soles are cut are at this stage of the work plastic and very sticky. 佚名.神奇的知识之书.
Cheap shoes could only be made by roughly fastening the soles to the uppers by wooden pegs, whose row of projecting points within has made many a man and boy do unnecessary penance. Edward W. Byrn.十九世纪发明进展.
The uppers are cut by hand from the engraved sheets, while metal patterns are used on the plain stock. 佚名.神奇的知识之书.
These and other machines complete the soles and heels, which are finally sent to the making or bottoming room, where the completed shoe uppers await them. 佚名.神奇的知识之书.
In 1809, David Mead Randolph of England patented machinery for riveting soles and heels to the uppers instead of sewing them together. 威廉·亨利·杜利特.世纪发明.