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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 |
| 6588904 | System for compensating for film flutter in a motion picture projector A system for compensating for film flutter in a motion picture film projector during projection of a motion picture film comprising multiple film image frames is described, the system comprising sensing the position of film image frames in a film gate of ... | 07/08/2003 |
| 6032843 | Longitudinal transport of laterally curved resilient strip A method for transporting a flexible resilient strip longitudinally within a processing station so that a nominally curved lateral cross section of the strip is substantially flattened wherein the strip is advanced along an arcuate path to bend longitudin... | 03/07/2000 |
| 5646747 | Film image input apparatus having curved film guide member At the center of a guide plate, another guide plate is provided. A convex curved portion is formed on the guide plate, and a concave curved portion is formed on the guide plate facing the curved portion. The force for straightening a photographic film act... | 07/08/1997 |
| 5323206 | Optical chassis A chassis for mounting components in a photographic film scanning apparatus cabinet includes a planar base member, and bearing mounts integral with the base member. The mounts sized and configured to hold bearings against which an arcuate wear plate of a ... | 06/21/1994 |
| 4973151 | Film constraint and illumination system A rigid transparent cylinder is rotated about its axis of symmetry at a relatively high rate of speed by means of a motor. Around a portion of the circumference of the rotating cylinder is wrapped a flexible imaging medium such as photographic film, to wh... | 11/27/1990 |
| 4973150 | Film constraint and film writing system A rigid cylinder is rotated about its axis of symmetry at a relatively high rate of speed by means of a motor. Around a portion of the circumference of the rotating cylinder is wrapped a flexible imaging medium such as photographic film, to which is appli... | 11/27/1990 |
| 4655566 | Large film image frame transport mechanism A film transport mechanism including an aperture assembly through which the film is advanced, the aperture assembly defining a film path of a waveform longer or equal to the fundamental modal waveform of the film. The film path may include bristle like st... | 04/07/1987 |
| 4253749 | Electronic theater projector An improved electronic film transport is disclosed for advancing motion picture film past a light gate in a motion picture projector. The light gate includes a transparent plate which imparts a desired shape to the film and, preferrably, one or more index... | 03/03/1981 |
| 4198134 | Film cartridge Film cartridge for use in viewing motion picture film having means forming a framework with an index plate with an aperture therein. A continuous length of film having perforations along one edge thereof is carried by the framework. Guide means is provide... | 04/15/1980 |
| 4099869 | Printing head assembly A printing head assembly for exposing raw stock film with a preprint film in a contact film printer including a dual roller gate assembly. The dual roller gate assembly includes a pair of rollers mounted on a roller frame for engaging the preprint film an... | 07/11/1978 |
| 4071294 | Photographic apparatus including improved aperture plate Photographic apparatus including an aperture plate adapted to cooperate with a pressure plate of a film handling cassette so as to laterally bow an incremental section of photographic film retained within the cassette into a precise location without conta... | 01/31/1978 |
| 3932033 | Cinematograph projectors A composite projector gate, aperture and light dowser assembly for a cinematograph film projector. The film guide surface through the gate area is curved convex towards the light source, film being held to curved marginal guides by flexible bands anchored... | 01/13/1976 |
