An accessory clamp arrangement for receiving and engaging a portion of a structural member comprising: a side arm assembly comprising a side arm; and a pair of clamps each comprising: a main body optionally providing a hook; a handle pivotally connected to the main body at a pivot point, the handle comprising a distal portion that is distal from the pivot point, the distal portion including a distal inner portion comprising a cam surface that extends outwardly from the distal inner portion; wherein: when the handle is rotated down into a locked position, the main body and the handle form a receiving area therewithin configured to receive and engage the portion of the structural member, and in the receiving area, the main body comprises a receiving surface and a side surface that are each configured to receive and engage the portion of the structural member; and characterized in that the structural member comprises at least a part of an emergency cot, wherein the pair of clamps are configured to couple removably to the side arm, and wherein: the side arm assembly comprises a first support, a second support, a first support joint and a second support joint; the clamps are spaced a distance apart and coupled to each other via a strut; the strut holding the clamps in a spaced arrangement that is substantially fixed; and each of the clamps being removably coupled to the side arm via the first support and the second support coupled respectively to the first clamp and the second clamp via the first support joint and the second support joint, respectively, the support joints allowing movement of the supports (286, 286) such that the side arm can be moved relative to the clamps. a side arm assembly comprising a side arm; and a pair of clamps each comprising: a main body optionally providing a hook; a handle pivotally connected to the main body at a pivot point, the handle comprising a distal portion that is distal from the pivot point, the distal portion including a distal inner portion comprising a cam surface that extends outwardly from the distal inner portion; a main body optionally providing a hook; a handle pivotally connected to the main body at a pivot point, the handle comprising a distal portion that is distal from the pivot point, the distal portion including a distal inner portion comprising a cam surface that extends outwardly from the distal inner portion; wherein: when the handle is rotated down into a locked position, the main body and the handle form a receiving area therewithin configured to receive and engage the portion of the structural member, and in the receiving area, the main body comprises a receiving surface and a side surface that are each configured to receive and engage the portion of the structural member; and when the handle is rotated down into a locked position, the main body and the handle form a receiving area therewithin configured to receive and engage the portion of the structural member, and in the receiving area, the main body comprises a receiving surface and a side surface that are each configured to receive and engage the portion of the structural member; and characterized in that the structural member comprises at least a part of an emergency cot, wherein the pair of clamps are configured to couple removably to the side arm, and wherein: the side arm assembly comprises a first support, a second support, a first support joint and a second support joint; the clamps are spaced a distance apart and coupled to each other via a strut; the strut holding the clamps in a spaced arrangement that is substantially fixed; and each of the clamps being removably coupled to the side arm via the first support and the second support coupled respectively to the first clamp and the second clamp via the first support joint and the second support joint, respectively, the support joints allowing movement of the supports (286, 286) such that the side arm can be moved relative to the clamps. the side arm assembly comprises a first support, a second support, a first support joint and a second support joint; the clamps are spaced a distance apart and coupled to each other via a strut; the strut holding the clamps in a spaced arrangement that is substantially fixed; and each of the clamps being removably coupled to the side arm via the first support and the second support coupled respectively to the first clamp and the second clamp via the first support joint and the second support joint, respectively, the support joints allowing movement of the supports (286, 286) such that the side arm can be moved relative to the clamps.