Improvements in Screw Wrenches.
Номер патента: GB189713912A
Опубликовано: 10-07-1897
Автор(ы): Johannes Schmidt
Принадлежит: Individual
Опубликовано: 10-07-1897
Автор(ы): Johannes Schmidt
Принадлежит: Individual
Реферат: 13,912. Schmidt, J. June 5. Wrenches.-The head A turns on a pin C and may be fixed in various inclined positions by a spring bolt F' so that awkwardly-placed screws &c. may be more readily reached and turned. The bolt F', which has roughened flanges H for gripping, slides in a slot in the handle and engages with notches E in the head A. Packing-pieces may be inserted in the jaws for use with nuts which do not quite fit. These pieces J have split spring stems N for inserting in holes G in the jaws or in the handle when not required. A hinged plate L keeps them in place.
Method and plant for air quality improvement in restricted space
Номер патента: RU2338961C2. Автор: Лауфей ЛИН. Владелец: Лауфей ЛИН. Дата публикации: 2008-11-20.