Abstract: The invention relates to a process and machine usable in mass-slaughtering for pulling off the belly strips from a hog carcass. The machine according to the invention is characterized in that it comprises an optical type sensor comprising a cell mounted on a supporting structure and capable of assessing the height of the suspended hog, between a reference place traversing the hooking bar on which the hog is suspended, and the plane traversing the hog's snout, and capable also to stop the vertical movement of the structure so as to place the head at a height varying between 700 mm and 900 mm above the plane.

Abstract: The invention relates to a machine comprising:a chassis movable with respect to a supporting structure,a clamp comprising:two jaws,means for controlling the opening and closing of said jaws,passive counter-jaws operationally coupled to said jaws,and means for controlling said counter-jaws with respect to said jaws.The invention finds an application in the mass-slaughtering of hogs.

Abstract: Supplementary equipment for use with a self-propelled crane with a telescopic jib to increase the possibilities of use of the crane on the ground comprising a support having a structure connected to the head of the jib and pivotally mounted on a platform of the crane, and an auxiliary jib articulated on the head of the jib. A strut is articulated at one end to the foot of the auxiliary jib and connected at its outer end to reeving articulated on the crane and controlled by a first winch and by a cable to the head of the auxiliary jib. A lifting hook is suspended by reeving from pulleys at the head of the jib and controlled by a cable connected to a second winch on the crane. The inclination and height of the auxiliary jib are controlled by the reeving and the first winch connected thereto, and angular movement of the jib about the vertical axis or pivotal movement of the structure on the platform is controlled by movement of the crane about that vertical axis.