GB1428381A - Clamping device - Google Patents

Abstract

1428381 Gripping tools A N HARLEY and A W HARLEY 19 April 1973 [26 April 1972] 19271/72 Heading B4W A clamping device includes at least one clamping jaw, e.g. jaw 27 which comprises an elongated jaw member having a bar receiving aperture or recess adjacent one end thereof and a clamping head 33 adjacent the other end thereof for exerting a clamping force on an element to be clamped in a direction parallel to the longitudinal axis of the bar, the bar receiving aperture or recess being defined by a pair of abutment members 28, 29 in the form of a pair 8/pins which are rigidly secured to the jaw and which are engageable respectively in use with opposite longitudinal edges of the bar 30, the abutment member which in use engages that edge of the bar remote from the clamping head being displaced in the direction of said clamping force from the other abutment member, the clamping jaw further comprising resilient means, e.g. spring loaded ball 31 for urging the two abutment members into engagement with said bar, the arrangement being such that in use pivotable movement of the clamping jaw in a direction opposed to the influence of said resilient means will release at least one of said abutment members from engagement with said bar to permit slidable movement of the clamping jaw along said bar to a desired position. As shown in Fig. 2 each jaw member is a steel forging having a forked lower end; in an alternative construction (Figs. 3, 4, not shown) the jaw members are forgings with a laterally opening recess and the abutment pins have flanged heads which provide lips to the recess. In another alternative construction (Fig. 1, not shown) the jaw member comprises two flat metal plates interconnected by round pins and a leaf spring urges the jaw in the bar gripping direction.