He invented a motion picture projector in 1853,[citation needed] developing it over the years from 1845[1] from the device then called stroboscope (Simon von Stampfer)[2] and phenakistiscope (Joseph Plateau).
[19][20][21] The method of strengthening bronze guns by mandrelling, or cold working them from inside with plugs of hardened steel (now known as autofrettage) was invented and patented in 1869 by Samuel B.
Despite state propaganda trumping the success of the "indigenous" technology, the empire still had to buy heavy artillery from Krupp, and the humiliated general committed suicide in 1881; however the country stuck to the technology until the WWI,[26] and therefore, Austrian artillery was inferior even as late as that.
[27] The characterization that the M1875 field guns were an utter failure: more expensive, heavier and less durable than steel is disputed by Christian Ortner, who states that a comparative analysis done at the time revealed steel-bronze to have similar properties to that of the ringed steel barrels by Krupp[28] and that after a 2,146 round endurance test, the steel-bronze barrels performed equally to the steel barrels supplied by Krupp.
As a side note, Spain also adopted "steel bronze" for the same reasons alongside the Krupp guns, but withdrew them after the introduction of the smokeless powder.