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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 |
| 4240872 | Suspension device for a headbox for paper and pulp machines A headbox for paper and pulp machines is pivotally mounted at the ends of a plurality of control links secured to the machine frame and pointing from the machine frame towards a center of rotation in the vicinity of the headbox slice opening. The angular ... | 12/23/1980 |
| 4221635 | Pulp feed for a papermaking machine A pulp feed for a papermaking machine comprising a guide block having guide channels through which parallelly flows the pulp or stock suspension and a nozzle channel which merges with the guide block. The nozzle channel terminates at an outlet gap for the... | 09/09/1980 |
| 4162189 | Paper machine having a headbox provided with an air tank A paper machine has a headbox provided with a slice through which a pulp suspension discharges from the headbox, this slice being defined in part by an upper lip frame. The pulp suspension flows to the slice from a distribution header and a turbulence pas... | 07/24/1979 |
| 4137124 | Head box for a papermaking machine The head box is provided with a distributor having a plurality of pulp distributing ducts which have terminal sections converging towards the throat of the box. The distributing ducts also have step-like widenings upstream of the terminal sections to crea... | 01/30/1979 |
| 4125429 | Headbox turbulence generator and damping sheet Turbulence is generated within a headbox nozzle passage in such close adjacency to the slice opening as to assure thorough and substantially uniform dispersion of the fibers in a jet stream delivered to the forming area on a travelling paper web forming s... | 11/14/1978 |
| 4089739 | Head box having guide block and adjustable slice plates The plates which define the throat of the head box are movable simultaneously to adjust the size of the exit throat while the angle between the plates is maintained. The adjusting means includes adjusting rods which are slidable lengthwise of the head box... | 05/16/1978 |
| 4087321 | Head box having distributor pipe connected to a pulp guide block The distribution pipe is of narrowing circular cross-section with an elongated aperture. The pulp guide is mounted via a tongue and groove connection on the pipe to both sides of the aperture in order to hold the pipe together against the peripherally ope... | 05/02/1978 |
| 4083750 | Flowbox with convergent wall portions For a paper, board or similar fibrous web making machine, a flowbox comprising an enclosed explosion chamber having upstream and downstream walls converging from a top wall toward a bottom wall, the stock inlet being directed at the downstream wall adjace... | 04/11/1978 |
| 4021296 | Method and device for manufacturing a continuous material web of elongated fibrous particles A method and device for manufacturing a continuous material of elongated fibrous particles from a suspension of the fibrous articles with a concentration at least twice as high as the sediment concentration of the fibrous particles, in which the highly co... | 05/03/1977 |
| 4016033 | Distribution means for aqueous slurry in papermaking machines Stock distribution means for delivering an aqueous slurry in a papermaking machine has a tapering passage which delivers stock to a nozzle by way of several rows of channels whose inlets are in communication with the passage. The passage, the entire chann... | 04/05/1977 |
| 3976539 | Adjustable slice for the headbox or the like of a paper or equivalent machine At the slice region of a headbox or the like of a paper or equivalent machine, there is a front support structure which has an elongated substantially horizontal lower region situated adjacent an upper lip of the slice. An elongated strip extends along th... | 08/24/1976 |
| 3954558 | Feeding device for paper machines A feeding device to which a fibrous suspension is supplied by an input manifold includes a passage extending over the entire width of the forming wire to which the suspension is to be fed. The passage may be composed of several sections, any two consecuti... | 05/04/1976 |
| 3937273 | Forming non-woven fibrous material In a method of making non-woven fibrous material such as paper, the papermaking stock as it is being delivered to the foraminous support of a papermaking machine has air under pressure introduced into it to produce foaming of the stock and the stock is su... | 02/10/1976 |
