The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 5810271 | Roller board and method for loading the same A roller board (16) for organizing a plurality of filaments (14) from spools (28) for delivery to a collection point, includes a first plurality of rollers (40) arranged to form spaces (42) therebetween, and a second plurality of rollers (44), each pivota... | 09/22/1998 |
| 4241480 | Comb section pair of an expansion comb Comb section pair of an articulating expansion comb for processing textile threads or filamentary wires, including a first and a second comb section pivotally joined together at an axis of rotation in the vicinity of an end of each comb section, a group o... | 12/30/1980 |
| 3980251 | Apparatus for changing thread spacing An apparatus for either increasing or decreasing the spacing between threads to facilitate the threading and unthreading of open ended combs. A plurality of vanes define converging passages for threads such that as the vanes are rotated the spacing betwee... | 09/14/1976 |