Abstract: Improvements in a machine for shaping hamburgers, which include a table-frame with a horizontally displaceable mold into which mold the ground meat enters directly and which has an element for detecting the pressure of the meat. The element, when it is drawn back, produces a signal for starting up the machine. A device is provided for expelling the freshly shaped hamburger, which device has structure for preventing the hamburger from sticking. This structure includes a chamber inside the expelling device, through whose periphery atmospheric air escapes, a knife provided on its base with a conduit with openings, through which air escapes in order to detach the edges of flexible sheets enveloping the hamburger, and upper and lower rolls for supplying flexible sheet, which rolls have inertia brakes including a pair of motorized rollers, above which rests the respective coil.

Abstract: The meat duct (6) is equipped with a gate (17) to cut the meat supply at intervals and with a plate (14) to regulate the passage of the meat (7). The sheet material paper rolls (9, 10) to wrap the hamburger have respective inertial brakes (26) and sensors (25) which, when the paper runs out, touch the core (23) of the roll and stop the machine. One of the paper strips bears a series of marks (20) which, as they pass through the cell (21), cause the pressing die mechanism (11) to operate. In addition, there is a rod (40) which separates the chopped meat end contiguous to the hamburger, and another rod (41) which, when it ascends due to an obstruction, touches a microswitch and stops the machine. The paper scraps left over are driven by a pneumatic system (35) to a container (37).