...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 7950520 | Modular conveyor belt support idler A support for a conveyor belt is provided. The support has a series of frames that may be installed beneath the underside of the conveyor belt to support the underside of the belt in a trough-shaped arrangement. Each frame supports a guide element, such as a roller,... | 05/31/2011 |
| 6971507 | Magnetic conveyor support Apparatuses designed to provide support to a conveyor belt in a new manner. In a first illustrative embodiment, a conveyor belt is supported by a number of magnets. A first set of magnets are disposed on the edges of the conveyor belt, and a second set of magnets ar... | 12/06/2005 |
| 6640964 | Device for automatic centering of belt conveyors A device for automatic centering of a conveyor with belts supported by chain flexible rollers is disclosed. The device includes a central attachment receiving rollers with a V-shaped angular orientation. The device also includes a rocking lever subjected ... | 11/04/2003 |
| 6634490 | Roller bed for a conveyor belt system A roller bed that is inserted between idlers in a conveyor belt system. The roller bed includes a base plate that is oriented substantially parallel to said surface of said conveyor belt. A first side plate on a first side of the base plate is oriented at... | 10/21/2003 |
| 6543607 | Roller bed for a conveyor belt system A bed rail assembly apparatus that is inserted between idlers in an existing conveyor system. The bed rail assembly apparatus includes a support rail oriented substantially parallel to and beneath the conveyor belt. A first bed rail assembly on a first si... | 04/08/2003 |
| 6427828 | Cam-lock segmental impact idler A segmental impact idler with the ability to mechanically lower idler segments is used for easy installation, removal and service of idler segments under loading skirts. The ability to mechanically lower idler segments eliminates a need to use a lifting d... | 08/06/2002 |
| 6363753 | Curved glass manufacturing apparatus with improved bending and conveyor units A roll-forming unit of a curved glass manufacturing apparatus includes a cooperating pair of upper and lower forming roll mechanisms. Each mechanism includes a forming roll having a resilient rod covered with a cover member except opposite end portions th... | 04/02/2002 |
| 6193055 | Conveyor belt support A support structure for a conveyor belt which includes two upwardly extending, pivotally mounted, support arms, a garland of conveyor idler rollers suspended between upper ends of the support arms and, for each support arm, respective biasing means which ... | 02/27/2001 |
| 6155407 | Conveyor belt impact support system A belt support system for supporting a belt member along a portion thereof during a material transfer operation where a flow of material is allowed to impact the belt member at a predetermined impact location, the present system including a plurality of r... | 12/05/2000 |
| 6044965 | Troughing idlers for belt conveyors A troughing idler of an enclosed belt conveyor has a horizontal shaft that is supported by antifriction bearings mounted outside of the side walls of the trunking and carries a medial roller. Each of the side walls of the trunking supports a downwardly an... | 04/04/2000 |
| 5441458 | Grooved roller chain idler An idler roller 40 replaces idler sprockets in roller chain 20 applications to reduce wear on the system components. The roller chain side bars 24, 26 rest in parallel alignment grooves 50, 52 in the non-resilient idler 40. In a second form, the outer cir... | 08/15/1995 |
| 5248029 | Belt conveyor having an automatic belt centering device and the centering device therefor A belt conveyor having an automatic centering device for a conveyor belt supported on flexible rollers has a central fastening for moving the rollers in curved trajectory by rotation of a pivotable lever around a fixed axis. This movement along the curved... | 09/28/1993 |
| 5007528 | Belt conveyor supporting arrangement A belt conveyor supporting arrangement includes three main components for preventing the belt from being damaged. The first component is a backing bed apparatus comprising a smooth slidable top plate having plural air flow channels at the surface thereof ... | 04/16/1991 |
| 4885059 | Edge curling device for Fourdrinier fabric A roller device attachable to the frame of a Fourdrinier paper-making machine near the lateral edges of the forming fabric in the sheet forming zone to press against each of the lateral edges of the forming fabric and cause them to curl upwardly so as to ... | 12/05/1989 |
| 4787504 | Adjustable radius conveyor roll An adjustable radius conveyor roll for shaping and conveying heat softened glass sheets. Interconnected glass sheet engaging members are rotatably mounted along a flexible shaft of the conveyor roll. The ends of the roll are pivotally connected to pivotin... | 11/29/1988 |
| 4760913 | Hinged belt support and enclosure system A support and enclosure system for a hinged belt conveyor includes a frame truss enclosing loaded and unloaded belt flights. The frame truss includes a plurality of vertical risers. The loaded flight rides between a plurality of troughing roll sets and to... | 08/02/1988 |
| 4609097 | High angle conveyor A high angle conveying apparatus including a conveyor belt and a cover belt trained for movement in endless paths of travel. The belts are supported for movement by an array of upwardly directed and downwardly directed troughed idler rolls for movement th... | 09/02/1986 |
| 4557341 | Belt weighing device with individually adjustable reels Weighing device for belt conveyors with individually adjustable reels for universal adaptation to different conveyors. The device is characterized in that the weighing device reels are located in enclosing frames (8,9 and 10,11,12), that the frames of the late... | 12/10/1985 |
| 4280619 | Moving belt conveyor mechanism Support mechanisms for an endless load-carrying belt for causing it to trough in the region of a loading point, the support mechanisms being constituted by a troughing mat extending completely across the conveyor, the opposite ends of the troughing mat be... | 07/28/1981 |
| 4146947 | Spreader roll A spreader roll for webs of textile material has a flexible shaft whose end portions rotate in or with pairs of bearings installed in sleeves which are pivotable about horizontal axes to thereby change the curvature of the shaft and/or slidable with respe... | 04/03/1979 |
| 3942626 | Channel belt conveyor A channel belt conveyor includes a bed, an elongated belt, and belt supporting flanges adjustably mounted on the bed and having lower edges spaced from the bed to form an exit passage therebetween. The belt supporting flanges are raised above the bed to s... | 03/09/1976 |