...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 6134733 | Operating unit for the manufacturing of sides for shoe bottoms A machine for finishing the sides of the bottoms of footwear has an endless abrasive belt carried by a pair of rollers, including a driving roller and an idler or drive roller. The driving roller is connected to a power-driven oscillating head on the mach... | 10/24/2000 |
| 5309589 | Automatic carding machine for footwear uppers and the like Automatic carding machine for uppers including a carriage upholding the upper to be scraped and travelling longitudinally along guides constrained to the top of the machine. The upper sector of the carriage runs on similar guides transversely. The movemen... | 05/10/1994 |
| 4691398 | Shoe making machine A shoe making machine is disclosed. It comprises a base; a slide table movably mounted on the base; a supporting member fixedly mounted on the slide table and having a clamping device for clamping the heel portion of a shoe body; a pair of guide shafts br... | 09/08/1987 |
| 4649585 | Apparatus for roughening the margin of lasted footwear An apparatus for roughening the margin of lasted footwear uppers, comprising a body of a roughening head which is adapted for moving toward an article of semi-finished footwear, the holder of which article is supported by a table board rotatable about a v... | 03/17/1987 |