Bracket for an operating table

An instrument support bracket for an operating table which comprises a body having a downwardly directed support face for overlying an upper face of a support bar of the operating table, an upright face for engaging an upright outer face of the support bar, and a lip for engaging an inner upright face of the support bar, a locking clamp jaw member, said locking clamp jaw member having a locking face engageable with an underside of the support bar, a lip engageable with the inner upright face, and pivot pin means spaced from the lip and from the locking face, upright slot means in the body for guiding the pivot pin means for up and down movement, a cam pivotally mounted in the body under the locking clamp jaw member and engageable with the locking clamp jaw member, the plane of the slot means being at right angles to the pivotal axis of the cam, and means for swinging the cam, the cam being arranged to swing the locking clamp jaw member between a lowered position in which the lip is free of the support bar and an intermediate position in which the lip of the locking clamp jaw member engages the support bar and the locking face underlies the lower face of the support bar in opposed relation thereto when the cam is swung in a locking direction, further swinging of the cam in locking direction advancing the locking clamp jaw member into locking engagement with the underside of the support bar.