Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7387280 | Points comprising a reinforced switch tongue blade In a switch including a main track and a branch track, wherein one rail of each track is each configured as a tongue rail and movable into abutment on the respective stock rail, at least one stock rail (1), in its region of abutment on the tongue rail (2 | 06/17/2008 |
| 5577691 | Switch blade device in a turnout on a tram-or streetcar-type line In a switch blade (point-rail) device in a grooved-rail turnout on a tram- or streetcar-type line, switch blades (2) are detachably mounted, using a clamping wedge (5) which is fastened to a support part (6) by means of a screw (12) in an essentially perp... | 11/26/1996 |
| 5451018 | Railway tongue and rail juncture A railway tongue and junction rail assembly including a mounting fixed to the junction rail. The tongue abuts the junction rail at an inclined junction and is releasably secured within the mounting with the mounting being the sole means of joining the ton... | 09/19/1995 |
| 4925135 | Arrangement for controlled guidance of a wheel axle or of a bogie of a rail vehicle passing over points An arrangement is proposed for controlled guidance of a wheel axle (22) or of a bogie of a rail vehicle passing over points, whereby the wheel contact point (48, 50) is subjected to a controlled influence such that the wheel axle runs substantially vertic... | 05/15/1990 |
| 4224875 | Static switching apparatus for passenger vehicle A static switching apparatus for a track vehicle includes a main line track and a switch track which at a switching junction both include a conventional track rail and a specially constructed rail. A switching cam including cam faces is positioned at the ... | 09/30/1980 |
