Apparatus for manufacturing sausages or the like

An apparatus for manufacturing sausages or the like comprising:

• a stuffer tube for stuffing dough into a casing;
• a pump for continuously discharging the dough to supply the dough into the stuffer tube;
• a casing pusher for propelling the casing;
• a chuck for receiving the stuffed casing from a discharging end of said stuffer tube, said chuck having means for frictionally engaging a part of said casing;
• and a linking device coacting with said chuck for twisting the stuffed casing as pushed out of said chuck into a chain of links, first means for manually changing the speed of rotation of said pump independently of said linking device;
• second means for manually changing the speed of operation of said linking device independently of said first means;
• third means for propelling said casing selectively automatically or manually;
• and fourth means for rendering said stuffer tube selectively rotatable or nonrotatable;
• said pump having a speed reducer in turn having an input shaft and an output shaft;
• a single motor for driving said pump and said linking device, said motor having an output shaft having oppositely projecting ends;
• said first means comprising a pump speed change device including a first conical pulley mounted on one of said ends of the output shaft of said motor, a second conical pulley mounted on said pump speed reducer input shaft, and a first endless belt entrained around said first and second conical pulleys;
• said second means comprising a linking device speed change device including a third conical pulley mounted on the other end of the output shaft of said motor, a fourth conical pulley mounted on an end of a further output shaft for driving said linking device and rotating said stuffer tube, and a second endless belt entrained around said third and fourth pulleys, said pump reducer comprising a pair of intermeshing gears mounted respectively on said pump speed reducer input shaft and output shaft for driving said pump, and therewith for reducing the speed of rotation of said pump after a speed change has been effected by said pump speed change device;
• and a linking device speed reducer comprising a first pulley mounted on said further output shaft, a second pulley mounted on a driving shaft for driving the linking device, and third endless belt entrained around said first and second pulleys for reducing the speed of operation of said linking device after a speed change has been effected by said linking device speed change device;
• said third means comprising a first fluid cylinder having a piston rod, a casing pusher rod connected to said piston rod for being operated thereby, a first manually operable handle connected to said casing pusher rod and guided by a guide bar extending parallel to said stuffer tube, and a semiautomatic control circuit for venting said fluid cylinder to atmosphere to allow said piston rod to be manually movable reciprocally when said casing is selected to be manually propelled;
• said fourth means comprising a clutch shaft rotatable in response to said further output shaft, a first clutch having an integral pulley and comprising a hollow tubular body rotatable by said clutch shaft, a second clutch mounted on said stuffer tube for meshing engagement with said first clutch to rotate said stuffer tube, and a second manually operable handle for operating third and fourth clutches mounted on said clutch shaft to render said first clutch selectively rotatable or nonrotatable;
• and a second fluid cylinder having a nonrotatable rod for propelling said stuffer tube, said rod and said stuffer tube being coupled by a bearing which allows said stuffer tube to be rotated and transmits a propulsion force from said nonrotatable rod to said stuffer tube.