Thomas Edison obtained a patent for an electrographic vote recorder.
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| Number | Title | Issue Date |
| 7594418 | Arc type blade transfer apparatus An arc type blade transfer apparatus is disclosed. The apparatus includes a main body which is formed with a space through which an arc type blade passes, and a transfer roller which is rotatably mounted to the main body and is rotated to transfer the arc type blade... | 09/29/2009 |
| 7319418 | Sensor with multiplex data output A method of transmitting data from a sensor (1) to a receiver (4) in which each original data word is split in positional fashion into at least two separate short data words (MSN, LSN). The separate short data words (MSN, LSN) are each converted by dig... | 01/15/2008 |
| 7290422 | Device for free three-dimensional profile forming The invention pertains to a device for the 3D free-form bending of profiles with arbitrary, but constant outside dimensions over the profile length, particularly hollow profiles, wherein the profile to be bent has a longitudinal axis and is moved through the through... | 11/06/2007 |
| 7213431 | Method of manufacturing an aluminum alloy wheel A method of manufacturing an aluminum alloy wheel, comprising the steps of producing an elongated strip of alloy blank with a desired cross-section by squeezing an alloy material, pre-curving the two ends of said blank into arcs, placing one end of said blank betwee... | 05/08/2007 |
| 7113300 | Method and system for secure delivery and printing of documents A system and method for providing secure, on-demand printing of documents delivered to a printing device is disclosed. A user logs onto a delivery system using a mobile device and selects a document to be printed along with a destination printing device. The deliver... | 09/26/2006 |
| 7111484 | Plug-in lower tool The present invention provides a plug-in lower tool for a deep rolling apparatus. The tool includes a housing having a recessed region that defines a seat for removable mounting of the tool and a passage in communication with the seat. The tool includes a reciprocab... | 09/26/2006 |
| 7065999 | Bending roll apparatus This invention provides a bending roll apparatus capable of preventing barrel-like deformation of a pipe occurring during a roll bending work and of manufacturing a small diameter elongated pipe. In an apparatus for manufacturing a pipe by pushing rolls to a core ro... | 06/27/2006 |
| 7040127 | Method and device for forming a pipe A method and a device are proposed which accurately and efficiently form a pipe with a bending machine only, without using any correcting devices. A plate having holes is fed into a bending machine in which under an upper roll, lower rolls parallel thereto are arran... | 05/09/2006 |
| 6725699 | Method for circulary bending a sheet and multicylinder device for carrying out the method According to the present invention, a method and an apparatus for rounding a sheet or plate blank in a rounding apparatus having rounding rolls is provided. A predetermined second part region of the blank is rounded after a predetermined first part region has been r... | 04/27/2004 |
| 6631631 | Two-roll rounding machine and method for rounding sheet-metal blanks On a two-roll rounding machine, in addition to a compressively elastic guide roll and a compressively rigid rounding roll, one or more compressively elastic rolls are provided which have both a rounding function and a supporting function for the rounding ... | 10/14/2003 |
| 6167737 | Vane forming apparatus The present invention is directed to a forming device adapted to impart a precise arcuate curvature to a sheet metal blank. The device includes a forming drum and a compression roller in proximate space relation to the surface of the drum. A characterizin... | 01/02/2001 |
| 5685186 | Base curve bender An eyewinder system 10 has stations 100-108 for straightening, bending, measuring and transporting a wire 11 to form an eyewire 109. A controller 120 controls each station. Using information from tension and length measuring stations 104, 105, the control... | 11/11/1997 |
| 5592844 | Process and apparatus for rounding sheet-metal blanks Sheet-metal blanks are fed in succession one immediately after another to a rounding apparatus in which they are plastically deformed into a curve in a rounding mechanism and are given a desired constant bending radius. The portion of the blank initially ... | 01/14/1997 |
| 5586463 | Pipe bending device A pipe bending device which is composed of a drive wheel, a plurality of guide wheels, a pair of guide molds and a mandrel, wherein the guide wheels having a main guide wheel which is installed under the drive wheel, the pair of guide mold being composed ... | 12/24/1996 |
| 5522245 | Device for producing metal rings A metal ring producing device comprises a rigid roller and a resilient roller. The resilient roller has an outer cylindrical portion covered with an elastic annular member. The resilient roller is positioned near the rigid roller so that a metal plate mem... | 06/04/1996 |
| 5425258 | Needle curving apparatus The present invention relates to a needle curving apparatus for curving one needle or a multiplicity of needles simultaneously. The apparatus includes a curving system for bending the needle and a reciprocating drive system for biasing the needle blanks a... | 06/20/1995 |
| 5361618 | Method and apparatus for adjusting bending rolls A method and apparatus for adjusting a set of bending rolls which simultaneously position a pair of adjustable top bending rolls with respect to a bottom bending roll. A bottom bending roll is mounted within a housing while a pair of adjustable top bendin... | 11/08/1994 |
| 5272905 | Exterior mandrel for multiaxis bender A tube support mandrel for use with a multiaxis tube bender acts to support the outer surface, rather than the inner surface, of the tube, and so may be used with tubes that are open on one side, or which otherwise do not have a complete, enclosed interio... | 12/28/1993 |
| 5150600 | Resilient member nesting apparatus A resilient member handling apparatus comprising a frame, a mechanism on the frame for bowing successive resilient members, and a mechanism on the frame for forming a nested complement of the resilient members, the mechanism for forming including a first ... | 09/29/1992 |
| 5115658 | Shaping machine for cylindrically bending a plate A shaping machine for bending a plate into a cylindrical shape which comprises a frame and first, second, and third roll assemblies disposed on the frame. Each of the roll assemblies includes a roll for engaging a plate to be bent and a plurality of pairs... | 05/26/1992 |
| 4977770 | Automatable bending machine having crenelated rolls A bending machine for shaping a flat sheet into a cylinder or cone by passing the sheet between a support roll and a train crenelated rolls having parallel axes. The crenelated rolls are subjected to pressure by a train of press rolls having axes parallel... | 12/18/1990 |
| 4856312 | Rounding apparatus for a can welding machine During the rounding of sheet-metal blanks, problems have hitherto arisen in the rounding apparatus (2) because the leading edge of the rounded sheet-metal blanks struck against a stationary stop at the end (48) of a slit (24) between an inner shell (20) a... | 08/15/1989 |
| 4845971 | Strap winding disposal device A strap coiling mechanism comprising a driven roller one having a serrated peripheral surface, a pinch roller for rotatably mounted at one extremity of a pivoted crank lever 8, said pinch roller being biassed towards the driven roller 1 by means of a comp... | 07/11/1989 |
| 4491004 | Apparatus for manufacturing a metal pipe The invention relates to an apparatus for manufacturing a metal pipe. At present, accurately measured, thick-walled pipes to be used as rolls must be manufactured in a plurality of working steps. The manufacture of pipes of accurate diameters is complicat... | 01/01/1985 |
| 4335758 | Apparatus for advancing and forming a wire This invention relates to an apparatus for advancing a strand of wire a specific and predetermined distance. The apparatus can be used in conjunction with a cutting device alone, or with a forming device to also produce articles of desired shapes. An addi... | 06/22/1982 |
| 4205546 | Process for forming curved hollow elements and an apparatus for carrying out this process A method and apparatus of forming curved hollow elements by drawing comprising providing a die having an inlet opening, providing a punch which is mounted for rotation at a center of rotation which is in the plane of the inlet opening with the punch havin... | 06/03/1980 |
| 4145904 | Bending and helix-forming apparatus The invention relates to a bending or helix-forming apparatus operating by partial but continuous rolling of a long product on a resilient rim portion of a driven rotatable drum, to which portion it is applied by a plurality of rollers having axes paralle... | 03/27/1979 |
| 4125006 | Sheet metal former A sheet metal forming apparatus is shown with a plurality of various size and shaped rollers. The rollers are substantially parallel with a first end being open, and a second end being rotatably anchored and extending through a stationary bearing housing.... | 11/14/1978 |
| 4114432 | Coil winding apparatus Apparatus for winding a linear, elongated object into a coil including a bending roller assembly for bending the linear, elongated object into loops of the coil, and a leveling device for bringing the curvature of the coil to a predetermined level. The le... | 09/19/1978 |
| 4063442 | Method and apparatus for forming tubes A machine and method for shaping a workpiece into a cylindrical tube includes a mandrel, a forming roll, a guide roll, and a continuous forming belt extending partially around the mandrel and partially around the forming roll and guide roll. The workpiece... | 12/20/1977 |
| 4039063 | Run-out apparatus and method for roll-formed panels Run-out apparatus and method for roll-formed panels includes a sectional run-out table providing a supporting surface of a selected length for panels formed by a forming section, a sectional support adjacent the run-out table providing a supporting surfac... | 08/02/1977 |
| 3996778 | Loader and unloader for plate roll machine A loader and unloader for a plate roll machine has an extensible boom extending generally horizontally over the plate rolls of the machine from a stationary support frame to which the boom is pivoted at one end for vertical movement over the rolls. The bo... | 12/14/1976 |
| 3996779 | Pipe storage apparatus and method Method and apparatus for coiling long lengths of substantially rigid pipe. Sections of pipe can be welded into a length several thousand feet long which is then bent to form a continuous spiral. Preferably, the pipe is stored in a vertical coil, with the ... | 12/14/1976 |
| 3952569 | Method and apparatus for coiling long products A method and apparatus are provided for winding long rod-like material, such as tubes, into coils by continuously coiling the material and depositing it into a rotating coiler adapted to collect a selected coil of material and then eject it into a deliver... | 04/27/1976 |