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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 4607776 | Apparatus for translating crystal fibers Translation apparatus for a crystal fiber includes a resilient belt which receives a crystal fiber in pressure engagement. The fiber is supported against the belt by a support member having a grooved surface for receiving the fiber. A floating block is po... | 08/26/1986 |
| 4603799 | Forward feed assembly for continuous forward feed of open tubular fabric under controlled tension A forward feed assembly for continuous forward feed of open tubular fabric to a subsequent processing station has an elongated guide mandrel over which the open tubular fabric passes, a first drive on one side of the guide mandrel operable to drivingly en... | 08/05/1986 |
| 4597516 | Web feeder apparatus An apparatus and method for supplying thin film plastic web materials to a wrapper machine as shown and described. This apparatus includes feed stripper which assures the separation of the web material from the apparatus. The feed stripper includes a clam... | 07/01/1986 |
| 4591084 | Method and apparatus for feeding and accumulating ribbon material Method and apparatus for feeding and accumulating ribbon material is disclosed. The apparatus includes a specific feed mechanism for promoting zig-zag loop folding of the ribbon. The apparatus also includes a reversing means for reorienting a pile of fold... | 05/27/1986 |
| 4566618 | Paper feed tractor with compensating pulley assembly utilizing cantable insert A tractor for a web feeding assembly having spaced support and drive shafts has a chassis providing a pair of apertures extending therethrough and a belt extending thereabout. A drive pulley mounted in one of the chassis apertures is engaged with the driv... | 01/28/1986 |
| 4542672 | Sheet material conveyor loading apparatus A layup of sheet material clamped to a conveyor by a conveyor loading apparatus is pulled by and onto the conveyor from an adjacent supply table. The loading apparatus includes a clamping carriage assembly straddling the conveyor and supported for free ro... | 09/24/1985 |
| 4501510 | Apparatus for feeding sheets of material and continuous webs in printers and typewriters A feed mechanism for sheets of material or continuous webs in a printer or typewriter, comprising a pin wheel feed mechanism for the feeding of continuous webs and a friction feed mechanism for the feeding of sheets of paper as well as the webs. The pin w... | 02/26/1985 |
| 4475833 | Web and sheet paper feed mechanism for printers A universal paper transport mechanism for feeding both continuous form and single sheet paper to a printer includes pin belt tractors longitudinally displaceable along a guide bar transversed to the direction of movement of the paper, the tractor is drive... | 10/09/1984 |
| 4462531 | Paper feed tractor with belt tensioning A tractor for a web feeding assembly has a chassis providing a pair of apertures extending therethrough and a belt extending thereabout. A drive pulley mounted in one of the chassis apertures is engaged with the driven surface of the belt and has an apert... | 07/31/1984 |
| 4367030 | Photographic developer-printer assembly, and a conveying roller unit therefor The developer-printer assembly comprises a housing having a plurality of tanks formed therewithin for confining developing fluid, fixing fluid, wash water and rinse water, and a plurality of conveying roller assemblies and guides for directing and conveyi... | 01/04/1983 |
| 4358194 | Transport for developing film in a photographic film processor An improved transport for developing film in a photographic film processor, the transport received in a tank having film processing liquids therein. The transport characterized by having a housing with film guide rollers that are mounted on removable bear... | 11/09/1982 |
| 4355749 | Feeding apparatus for wet yarn A filament-feeding apparatus for a wet freshly dyed yarn has a feed wheel centered on and rotatable about an axis and having a pair of side parts having generally circular peripheries lying in parallel spaced-apart planes perpendicular to this axis, and a... | 10/26/1982 |
| 4316761 | Single facer A single facer includes a pressure member adjacent the lower corrugating roll to apply pressure for effecting bonding of a corrugated web and a liner web, the liner web being adjacent the surface of the pressure member. The pressure member is provided, in... | 02/23/1982 |
| 4291969 | Photographic developer-printer assembly, and a conveying roller unit therefor The developer-printer assembly comprises a housing having a plurality of tanks formed therewithin for confining developing fluid, fixing fluid, wash water and rinse water, and a plurality of conveying roller assemblies and guides for directing and conveyi... | 09/29/1981 |
| 4256427 | Automatic wire stacker apparatus Apparatus for successively receiving and transporting long cut lengths of wire from a wire cutting mechanism and stacking the cut lengths in a receiver, a pair of long looped belts being supported with confronting surface faces coacting to form a longitud... | 03/17/1981 |
| 4211349 | Method and a device for applying an enlacing tape around an object A method of and a device for applying an enlacing tape around an object, in hich the tape is taken along its path around the object to be enlaced by an endless conveyor belt by its being held urged against said belt and at the same time is fed by a tape fe... | 07/08/1980 |
| 4208000 | Apparatus for advancing strand material An apparatus is disclosed for the attenuation or advancing of strand material, such as glass strands. The apparatus includes a single belt and a plurality of wheels around which the belt is driven and guided. The strand is attenuated as it passes between ... | 06/17/1980 |
| 4181421 | Film processing Three or more tanks holding photographic processing solutions are arranged in series in a processing machine that transports photographic material sequentially in and out of each tank by turn-around assemblies inside each tank and by crossover assemblies ... | 01/01/1980 |
| 4179056 | Wire-feeding mechanism A wire-feeding mechanism comprises a rotatably mounted pulley formed on its edge with a continuous circumferential groove and plural rollers arranged to hold an endless flexible belt against a segment of the edge of the pulley. The belt thus is adapted to... | 12/18/1979 |
| 4154386 | Automatic paper-passing apparatus in turning bars in rotary press A fixed guide plate is disposed on one side along a paper passage before and after turning bars, and a circulating running belt is disposed on the other side along said paper passage, so that the front end of running paper is fed in the state gripped ther... | 05/15/1979 |
| 4140384 | Film conveyor In a film conveyor for use in developing films comprising a first and a second belt racks consisting of a plurality of narrow belts and pressure rollers, and a roller rack consisting of a plurality of squeegee rollers and spray tubes arranged between said... | 02/20/1979 |
| 4118179 | Material processor with relative movement between material and its positioner An elongatable endless belt passes around four rollers and, in so doing, passes adjacent to the heated surface of a U-shaped platen which has its edges adjacent to two of the rollers. The surface of the belt which faces the platen is in driving engagement... | 10/03/1978 |
| 4049170 | Device for pulling up and paying out an oil boom A device for pulling up and paying out an oil boom comprises a structural frame, a pair of end pulleys horizontally journaled on the frame, an endless belt engaged with the end pulleys and having a plurality of engaging projections for oil boom and a push... | 09/20/1977 |
| 4039108 | Feeding and hold down mechanism for a sanding and shaping machine Apparatus for use in a sanding and shaping or other machine comprised of a plurality of individually mounted feeding and hold down members adapted to engage and hold a work piece against a table and against a guiding fence as the work piece is fed through... | 08/02/1977 |
| 4019667 | Machine for conveying a material in web form through treatment tubs A device is disclosed, for treating a material (for example photographic films) through a plurality of processing baths, different stay times being required in different baths. The desired variations of the stay times are obtained by varying the geometric... | 04/26/1977 |
| 4010883 | Thread delivery device for textile machines A thread delivery device, particularly for use with a texturing device, is described wherein an endless belt runs over two freely mounted rollers on a pivotable support. In the operative position of the support, the belt between the rollers contacts a pow... | 03/08/1977 |
| 4009877 | Document transport device Disclosed is document transport apparatus for advancing documents between two locations, for example between the printing and output stations of copying equipment, the transport apparatus including a high friction continuously driven belt cooperating with... | 03/01/1977 |
| 4002280 | Film transport apparatus utilizing rollers to provide a U-path This invention provides a U-shaped pathway for cut film and prints as the cut sheets are automatically moved in a prescribed manner, path and speed through a processing tank or tanks. This transport is between rollers which are spaced from each other suff... | 01/11/1977 |
| 3998453 | Sheet conveyor apparatus A conveyor apparatus for transporting sheets in a longitudinal direction along a transport path comprises a plurality of guide rollers arranged in axially spaced parallel relation and extending transverse to the direction of sheet transport. An endless be... | 12/21/1976 |
| 3995785 | Apparatus and method for forming dynamoelectric machine field windings by pushing An apparatus and method for placing magnet wire in the slots respectively defined by spaced, parallel blades of coil transfer apparatus which lie on an imaginary cylinder thereby to form a dynamoelectric machine field winding. The wire is pushed and simul... | 12/07/1976 |
| 3967654 | Yarn feed mechanism for a weaving machine A yarn transport mechanism for a needle band weaving machine comprising a carrier which can be placed into revolving motion with variable speed, said carrier possessing a friction coating against which there can be placed the yarn which is to be conveyed ... | 07/06/1976 |
| 3955604 | Deflecting device for flat textile structures An endless belt is disposed between the cloth take-off roller of a weaving machine and the pressing roller in order to press a cloth passing between the belt and the take-off roller or between the belt and each of the take-off roller and pressing roller. ... | 05/11/1976 |
