US Patent No. 1,816,368, granted July 28, 1931 to Vittorio Fioruzzi of Piacenza, Italy, for an automated apparatus for rearing silkworms from hatching through cocoon spinning. A series of intermittently driven endless conveyor belts moves the worms along as they grow, with bridging sheets transferring them between belts. A travelling carriage feeds cut mulberry leaves, removes leaf beds, and triggers the belt movements. Spinning huts at the end of the line let the worms spin cocoons, and a rake detaches the cocoons. The document has eight sheets of drawings (Figs. 1-28), the specification, and 13 claims.