A woman phones up her husband at work for a chat.
HIM "I'm sorry dear but I'm up to my neck in work today."
HER "But I've got some good news and some bad news for you dear."
HIM "OK darling, but as I've got no time now, just give me the good news."
HER "Well, the air bag works."
YoyoIn 1866, the first U.S. patent for a yoyo was issued to James L. Haven and Charles Hittrick of Cincinnati, Ohio. Although termed a “Whirligig” or a “Bandalore” in the patent title, it had the familiar construction of a yoyo with two disks “coupled together at their centers by means of a clutch.” It was also the first time rim-weighting to maintain momentum was mentioned in a patent. “It will be observed that the marginal swell ... exercises the function of a flywheel.” This patent is important since it shows the first use of patents to protect design improvements in the manufacture of a yoyo. Messrs. Haven and Hettrick were in the business of mass-producing yoyos over a half century before the better known Flores brand.« |
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