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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 |
| 7278343 | Apparatus for lap seaming floor coverings The present invention pertains to an apparatus for continuously cutting different floor coverings to form a uniform seam between them. The apparatus is particularly suited for vinyl and linoleum tile floor coverings. The apparatus is secured to a floor at a referenc... | 10/09/2007 |
| 7269909 | Rafter layout tool A rafter layout tool for facilitating the layout of ridge cut, bird's mouth, seat cuts, fascia and soffit for the common hip, valley rafter cuts comprising a protractor member, measurement indicator arm and 90 degree arm and move up and down and side to side for dif... | 09/18/2007 |
| 7254899 | Arch measuring device A measuring device for measuring the arc of an arched window comprising a base; measuring means selectively rotatable relative said base for measuring a distance between said base and said arch at a selected angle. ... | 08/14/2007 |
| 7204031 | Telescoping T-square The telescoping T-square has a crossbar or cross-member and an extendable shaft or leg. The cross-member is a relatively short bar having a pair of parallel runners longitudinally extending across the length of one surface of the bar and a slot defined through the b... | 04/17/2007 |
| 6973736 | Tile contour tool An apparatus for tracing a contour onto a tile prior to cutting the tile includes a base member having a first longitudinal slot and a retaining lip disposed at one end thereof. A first extension member includes a second longitudinal slot and is pivotally attached t... | 12/13/2005 |
| 6964112 | Measuring instrument A device for measuring and marking lines and points on a steel I-beam includes a rib for contacting the outside of an I-beam flange along a line opposite the center of the beam web, a measuring blade that rests on the beam web and measures distances from the outside... | 11/15/2005 |
| 6584698 | Angle indicating apparatus capable of positioning at predetermined angles An angle indicating apparatus includes a rod member, an indicia member, an indicator, a spring-loaded tumbler unit, and a locking unit. The indicia member is mounted pivotally on the rod member about a pivot axis, and includes a base plate formed with a g... | 07/01/2003 |
| 6049990 | Multifunction layout tool A Multifunction Layout Tool capable of performing the functions of an adjustable square, adjustable T-square, try square, combination square, protractor, angle duplicator, depth gauge, rip gauge, rafter-stair layout tool, and compass is disclosed. The too... | 04/18/2000 |
| 5915806 | Multi-function square The Mad Square invention has a detachable spring loaded marker device which accepts replaceable lead points and for which the pencil lead can be adjusted to the right length by tightening the adjusting screw. The detachable marking device can be slid alon... | 06/29/1999 |
| 5337641 | Woodworking machinery jig and fixture system A woodworking machinery jig and fixture system includes a track which is attached to a separate plywood fence, auxiliary table or other workpiece support of woodworking machinery such as a table saw, a band saw, radial arm saw, miter saw, a drill press or... | 08/16/1994 |
| 5205045 | Household tile cutting gauge A tile cutting gauge comprises mainly a semi-circular protractor and a guide rod pivotally fastened to the protractor. A length ruler is slidably mounted on the straight side of the protractor, while a baffle means is slidably mounted to the guide rod in ... | 04/27/1993 |
| 4669197 | Drawing aid A drawing aid for assisting in the marking of lines or other markings on sheet material incorporates a blade-like portion (2) which is connected with a location region (1A, 2A) which includes means (4, 5) deformable relative to the blade-like portion to b... | 06/02/1987 |
| 4665623 | Illuminated drafting aid A drafting T-square including a base block with a pivotable straight bar which can be manipulated as a protractor. A scale is slidable along the straight bar for extending beyond the straight bar. A further arm is pivotable with respect to the straight ba... | 05/19/1987 |
| 4531296 | Device for marking out workpieces Marking out device having a sliding block for sliding along the outer edge of a workpiece with a vertical wall resting against the outer edge of the workpiece. A graduated horizontal guider is secured at one end to the upper side of the sliding block and ... | 07/30/1985 |
| 4417399 | Device for the calculation of the characteristics of rectilinear geometric shapes Device for the calculation of the geometrical characteristics of rectangles for the framing of various objects, usable especially in photography, architecture, industrial design. This device comprises a plate in which there is formed a preferably square a... | 11/29/1983 |
| 4327499 | Drafting apparatus The present drafting apparatus comprises a drafting board (1) having secured to one longitudinal edge thereof a metal rail (4). A runner (3) and a rail (2) are displaceable along the metal rail (4). The runner (3) is pulled against the metal rail (4) by m... | 05/04/1982 |
| 4312133 | T-Square A T-square useful for drawing lines and cutting paper or plastic sheets comprises a ruler main body of a plastic material and an auxiliary ruler section detachably and turnably connected to an end of the main body by threaded fastening members, one of the... | 01/26/1982 |
