In this role, the scissors there may be in those cases where it is necessary to mark out the surface measure equal segments. It is enough to fix the ends of the scissors between two wooden slats, holding their bolt or just firmly pulling any cord. In this position, the scissors can be a circularly-cut for plywood, cardboard, plastic.
Recommend to read
SAFE STAIRS
Reversible ladder — a device simple and reliable. But only in ideal conditions, and when the floor is smooth and wall is straight. And if you have to work, say, in the stairwell on the...
TRICYCLE-AIR SUSPENSION
A prototype of the proposed tricycle car was made by me on the basis of the motorcycle "IZH" chamber with two leading wheels and a steering ski. It seemed that the desired result is...
