Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7373734 | Linear proportioner A linear proportioner including a logarithmic mechanism to be used for transferring linear dimensions from an existing drawing, picture or actual scene to a new drawing or artist medium. An elongated assembly provides two indicators (one fixed and one variable) as r... | 05/20/2008 |
| 6973739 | Rigger-spread measuring instruments An instrument for measuring rigger-spread of a boat has an elongate casing 1 for support athwartships of the boat with a shoulder 2 of the casing 1 abutting the outside of the gunwale 4 opposite the rigger 5 and a slidingly-adjusta... | 12/13/2005 |
| 6816805 | Computer generated scale and conversion instrument The present invention relates to a process and method for printing, utilizing a computer and computer printer, a scale instrument and conversion tool to be used in preparing and interpreting scaled drawings, maps, aerial photographs, graphs and similar documents. Th... | 11/09/2004 |
| 6243963 | Dividing rule A dividing rule that allows the user to divide a workpiece into equal divisions with heightened accuracy and ease. The dividing rule is a plate with pins attached at the corners of the plate which help position the plate on the workpiece. Holes marked wit... | 06/12/2001 |
| 6205671 | Electronic increment marker A tool for selectively marking a surface in specific desired increments for use in a variety of mechanical arts. The tool has a ruled face and indicates selected increments by illuminating light emitting devices corresponding to the locations to be marked... | 03/27/2001 |
| 5896671 | Universal scale and conversion tool The present invention relates to a measuring device, conversion device or ruler having specifically or universally selectable scales which can be used to measure distances with a desired linear or logarithmic scale, to draw distances to a desired scale, o... | 04/27/1999 |
| 4903411 | Method for determining type size The present invention relates to the field of typography. In this field, it is desirable to quickly and efficiently determine certain key ratios between cap height and type size of a letter in a particular typeface, in order to create various aesthetic re... | 02/27/1990 |
| 4817292 | Pleat placement chart and method of using the same Disclosed herein is a chart and a preferred method of using it. The chart consists of predetermined measurements printed, preferrably on a durable paper. The chart is designed to give double fullness to drapes. This is accomplished by the pleated and the unple... | 04/04/1989 |
| 4572250 | Ribbon cable wire end forming tool A cyclical machine forming tool utilizes positionally justified form knives so that, nominally, a selected 80 out of 120 total stripped wire ends of flat ribbon cable may be selectively simultaneously formed, for bent, into a contour such as is useful for... | 02/25/1986 |
| 4545125 | Equal spacing positioning apparatus Apparatus for positioning a number of nondestructive dud detectors above a conveyor includes side support members to which a rotatable threaded positioning bar is mounted. The positioning bar includes a number of serially placed threaded positioning segme... | 10/08/1985 |
| 4416063 | Golden proportion calipers A proportional divider comprises a reference index located between a pair of variable indices and a sectionalized threaded spindle having opposite end sections with reverse threads and of different pitches in a ratio approximating 1 to 0.618. Each spindle... | 11/22/1983 |
