Improvements in Treads for Floors, Steps and the like.
Номер патента: GB191001754A
Опубликовано: 14-07-1910
Автор(ы): John Thomas Simpson
Принадлежит: Individual
Опубликовано: 14-07-1910
Автор(ы): John Thomas Simpson
Принадлежит: Individual
Реферат: 1754. Simpson, J. T. Jan. 24. Treads.-Metal sheets are slit and bent up as shown, and blocks of carborundum, lead, &c. are inserted in the pockets 9. The front edge 12 may be curved and bent up as shown to protect the e nosing of the stair &c. The plate and attached blocks may be sunk into the surface of concrete or cement work, forming a reinforcement thereto as well as a tread, or may be attached to wooden &c. surfaces by means of a holding-plate 10 and screws &c. Adjacent treads may be secured together by overlapping.
Improvements in forming and securing cover panels for linings to walls, roofs and the like
Номер патента: GB559914A. Автор: . Владелец: Individual. Дата публикации: 1944-03-10.