Patent ID: 8950716
Filing Date: 2015-02-10
Classification: B66D,F16M,Y10T

Abstract:
1. A device, comprising: a plate having first and second ends, and a top surface, and a bottom surface, said bottom surface having a first curved portion located at said first end, and having a second curved portion located at said second end, where first and second curved portions are concave portions on said bottom surface; said plate having a connection part; a clamp portion, coupled to said connection part, having a first movable part with a first movable curved portion located to face to said first curved portion, which is movable both toward and away from said bottom plate and also toward and away from said first end and said first curved portion on said plate, including being movable in a first direction that causes said first movable curved portion to move vertically relative to said first curved portion, a movable in a second direction that causes said first movable curved portion to move horizontally relative to said first curved portion, and said clamp portion having a second movable part with a second movable curved portion located to face to said second curved portion, which is movable both toward and away from said bottom plate and also toward and away from said second end first end and said second curved portion on said plate, including being movable in said first direction that causes said second movable curved portion to move vertically relative to said second curved portion, a movable in said second direction that causes said second movable curved portion to move horizontally relative to said second curved portion, closer to one another, and to move towards and away from said first curved portion in a second direction that causes said first curved portion and said clamp first curved portion to be horizontally closer to one another, and the second clamp portion, where in an unclamped position, said first and second moveable parts are in a location that is inwardly spaced from said first and second curved portions in a way such that said first and second curved portions can be lowered on to respective trusses, and where in a clamped position, said first and second movable parts clamp and hold bottom surfaces of said respective trusses.