首页>
外国专利>
METHOD AND APPARATUS FOR CUTTING SQUARE OR RECTANGULAR WINDOWS OUT OF MATS FOR MAKING PICTURE FRAMES
METHOD AND APPARATUS FOR CUTTING SQUARE OR RECTANGULAR WINDOWS OUT OF MATS FOR MAKING PICTURE FRAMES
展开▼
机译:用于从抠像中抠出方形或矩形窗的方法和装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method of and an apparatus for the cutting of rectangular windows on mats provides a pair of blades on respective tracks which are simultaneously displaced to cut a pair of mutually perpendicular cuts in a blank positioned on a worktable. The blade carriages are actuated by pneumatic cylinders and in turn carry pneumatic cylinders for raising and lowering the blades. The margins of the mat are defined by adjustable bars whose perpendicular distances from a reference point, represented by the junction of the paths of the cuts, can be set.
展开▼