(EP640251-A1)      The appts. includes a partial cylindrical ring (11), at one free end (12) of which, there is located a pivotal U-shaped member (13) connected to a pair of lugs (14) by a pin (15). A clamping wire (17) attached to the pivotal member, engages with sockets (19) formed on the exterior surface of the ring.    In operation, the clamping wire is positioned in any of the sockets according to the relative dimensions of the ring and the post. The pivot member is operated to manipulate the clamp into an over-centre snap clamping arrangement, drawing the free end and the other end (20) together so that the ring has a tight fit over the post.    ADVANTAGE -   Easy to install and remove without tools. Can be adjusted to accommodate various size posts. Clamping action ensures good electrical connection.    (JP7506695-W)      The appts. includes a partial cylindrical ring (11), at one free end (12) of which, there is located a pivotal U-shaped member (13) connected to a pair of lugs (14) by a pin (15). A clamping wire (17) attached to the pivotal member, engages with sockets (19) formed on the exterior surface of the ring.    In operation, the clamping wire is positioned in any of the sockets according to the relative dimensions of the ring and the post. The pivot member is operated to manipulate the clamp into an over-centre snap clamping arrangement, drawing the free end and the other end (20) together so that the ring has a tight fit over the post.    ADVANTAGE -   Easy to install and remove without tools. Can be adjusted to accommodate various size posts. Clamping action ensures good electrical connection.    (US5556309-A)      A snap-lock battery terminal comprising an annular ring of substantial longitudinal extent and minimal radial thickness which is longitudinally slit to form two ends, a lug protruding outwardly from the ring, said lug being used to attach an electric cable thereto, said annular ring having at one said end a manually graspable pivotal member pivotally connected thereto at a first location, said pivotal member having a clamping member pivotally connected thereto at a second location spaced from said first location, said annular ring further having its other end bent radially outward and including at least two spaced socket means with either of which said clamping member is able to engage, wherein said pivotal member when pivoted towards said annular ring with said clamping member engaged in one of said socket means simultaneously draws together the two ends of said annular ring and firstly increases, and then slightly decreases, the distance between said first and second locations.