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 |
| 5590754 | Blade feeder conveyor system A conveying system for heavy material such as overburden that contains large rocks as well as small rocks and dirt. The system has a feed system using two blades that rotate over an apron to push material onto the conveyor and a transition assembly betwee... | 01/07/1997 |
| 5271489 | Apparatus for interfacing indexing and continuous motion machines and method of utilizing apparatus An apparatus and method for facilitating the interfacing between indexing motion and continuous motion machines wherein interfacing structure is provided by a continuous motion interfacing loop conveyor which is operatively interposed between the discharg... | 12/21/1993 |
| 5123520 | Apparatus for gathering and removing particulate material Apparatus for gathering particulate material in mines and similar plants has a mobile platform which collects particulate material and surrounds the trailing end of a material removing conveyor. The sides of the trailing end of the conveyor are flanked by... | 06/23/1992 |
| 4714154 | Material and transfer loading apparatus A loading apparatus comprises a ramp defining a loading surface and a pair of loading blades each having a triangular cross-section with a nearly perpendicular front face and a shallow inclined rear face relative to a desired delivery direction for materi... | 12/22/1987 |
| 4664448 | Shear-type loader for a tunnel and gallery excavator A loading mechanism operating on a loading apron of a tunnel and gallery excavator or the like comprises an eccentric-carrying crank disk, a crank lever, a shear rake, and a link. The eccentric-carrying crank disk is rotatable about its axis in a single d... | 05/12/1987 |
| 4641888 | Material gathering device for a mining machine An improved material gathering device is for a mining machine or the like of the type which includes a mobile body supporting a mining head at a forward end thereof for dislodging material from a mine face. A gathering platform is on the mobile body adjac... | 02/10/1987 |
| 4605119 | Drive arrangement for the loading arms of a loading ramp for heading machines or longwall shearing machines In a drive arrangement for the loading arms (5) of a loading ramp for a heading machine or longwall shearing machine, each loading arm (5) is rotatably supported in off-center position on a rotary disc (7) and extended beyond its axis of rotation (6) by g... | 08/12/1986 |
| 4552263 | Drive arrangement for the loading arms of a loading ramp for heading machines or longwall shearing machines The loading ramp (1) of a heading machine or longwall shearing machine has swivelable loading arms by means of which the cut material is removed onto a conveying means. The surface of the loading ramp (1) can be increased by outwardly swivelling of parts ... | 11/12/1985 |
| 4355713 | Device for lifting and loading boxes and cartons, especially from an agricultural field Apparatus for lifting produce-filled cartons from an agricultural field. A main frame has a pickup device at its forward end, comprising a pair of rotating facing discs on two generally vertical converging planes with high friction faces for engaging the ... | 10/26/1982 |
| 4296856 | Material gathering device for a mining machine A mining machine includes a mobile body and an endless conveyor for conveying rearwardly on the body the material dislodged by the mining machine. A gathering platform extends forwardly from the conveyor. Oscillating gathering arms positioned laterally of... | 10/27/1981 |
| 4290820 | Method and apparatus for collecting particulate material on a roadway An improved front-end loader apparatus for collecting particulate material on a roadway surface comprising a frame assembly drivingly supported on the roadway, a windrow formation assembly supported at the forward end of the frame assembly for brushing pa... | 09/22/1981 |
| 4236627 | Cutting machine A cutting machine includes an endless conveyor and a loading ramp having movable loading arms which continuously shift the cut material in an upward direction of the loading ramp to conveyor. The rear deflector wheel of the conveyor is driven by a squirre... | 12/02/1980 |
| 4228890 | Particulate material loading equipment Loading equipment for particulate material comprising a working deck and angularly displaceable paddles mounted for repeated to and fro movement about pivotal axes along a portion of the working deck to urge the particulate material over the deck, each pa... | 10/21/1980 |
| 4056189 | Material gathering device for a mining machine A mining machine for dislodging solid material from a mine face includes a body portion mounted on endless tracks and a boom member extending forwardly from the body portion with a cutter drum member rotatably mounted on the front end of the boom member. ... | 11/01/1977 |
| 4047762 | Gathering arms for a mining machine The invention relates to gathering arms for a mining machine to operate in conjunction with a forwardly extending apron to sweep mined material across the apron where it can be transferred by a conveyor to the rear of the machine. Although a single gather... | 09/13/1977 |