Loaded and unloaded. The clamp can be made integral with the latch. Fig 1.26(a) shows a hinged clamp wich is locked by means of a bolt. Fig. 1.26(b) shows a hinged clamp provided with a hook cam. This clamp is much quicker than the bolt type and is suitable for workpiece which maintain dimensional accuracy. The hooked end of the operating lever acts as a cam and engages a pin. Fig. 1.27 shows some other designs of the lids or straps which may be used for swinging latch or hinged clamp.