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Class Information
Number: 226/92
Name: Advancing material of indeterminate length > Threading device > With means to pull lead-end
Description: Device provided with means, usually a gripper*, to positively drag the forward edge of new or broken material to or through the material advancing means.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
4646986 Apparatus for locating, engaging and transporting the leader of convoluted cigarette paper or the like Mar. 3, 1987
4646636 Device for the drawing in of material webs in rotary presses Mar. 3, 1987
4637566 Method and apparatus for conducting the end of a web Jan. 20, 1987
4617719 Tape staking and control apparatus Oct. 21, 1986
4613221 Developing apparatus Sep. 23, 1986
4613222 Film accumulating device for developing apparatus Sep. 23, 1986
4601434 Package transporting apparatus Jul. 22, 1986
4598850 Web threading arrangement for threading a paper web through a rotary printing machine Jul. 8, 1986
4579293 Apparatus for withdrawing the leaders of webs from reels of convoluted flexible material Apr. 1, 1986
4576321 Apparatus for connecting a strip of photographic paper to a flat conveyor belt Mar. 18, 1986
4572460 Means for pulling tape from a reel Feb. 25, 1986
4560098 Threading device Dec. 24, 1985
4545517 Continuous forms leader Oct. 8, 1985
4543151 Daylight apparatus for breaking open a film cassette, identifying the film released therefrom, and splicing same to the next preceding film Sep. 24, 1985
4540324 Device for detecting whether or not one end of a belt-shaped sheet is locked Sep. 10, 1985
4523725 Apparatus for driving tapes Jun. 18, 1985
4520970 Cartridge tape drive having vacuum auto-threading Jun. 4, 1985
4501037 Method for introducing heat-sensitive material into a hot environment Feb. 26, 1985
4491503 Threading belt and threading system Jan. 1, 1985
4480801 Webbing system Nov. 6, 1984
4467983 Unreeling device and tape reader incorporating such an unreeling device Aug. 28, 1984
4452406 Leader block for single reel tape cartridge Jun. 5, 1984
4432508 Automatic tape threading device Feb. 21, 1984
4431282 Device for mounting diapositives in a strip and an apparatus for projecting the strip-mounted diapositives Feb. 14, 1984
4426047 Single reel tape cartridge Jan. 17, 1984
4411725 Daylight film splicer Oct. 25, 1983
4409777 Web threading apparatus Oct. 18, 1983
4399936 Pantocam web threading apparatus Aug. 23, 1983
4399959 Constant force windup spring web threading system Aug. 23, 1983
4370927 Paper web threading apparatus for rotary printing machines Feb. 1, 1983
4364529 Leader pin Dec. 21, 1982
4362375 Apparatus including a circulating chain for conveying photosensitive material Dec. 7, 1982
4334656 Automatic tape threading apparatus for magnetic tape transports Jun. 15, 1982
4330191 Connector device for attaching photographic web material to a leader belt May. 18, 1982
4312470 Apparatus for processing photographic materials Jan. 26, 1982
4309830 Apparatus for threading a float web dryer Jan. 12, 1982
4295590 Apparatus for processing photographic materials Oct. 20, 1981
4292115 Cartridge film unloading and splicing system Sep. 29, 1981
4268292 Method and apparatus for forming glass filaments May. 19, 1981
4239367 Continuous-band web transport Dec. 16, 1980
4214467 Metal coil handling system Jul. 29, 1980
4210682 Sheet metal ribbon coating method Jul. 1, 1980
4204620 Apparatus for removing exposed films and backing strips from cassettes May. 27, 1980
4194896 Method and apparatus for forming glass filaments Mar. 25, 1980
4188108 Device for clipping strips of photographic paper to developers comprising a flat conveyor belt Feb. 12, 1980
4187968 Apparatus for threading a paper web into the folding mechanism of a rotary printing press Feb. 12, 1980
4175939 Method and apparatus for introduction of glass filament strand onto feed roller of chopped glass filament strands manufacturing system Nov. 27, 1979
4169551 Apparatus for threading moving strands Oct. 2, 1979
4169587 Process for transferring supports, and supports for use therein Oct. 2, 1979
4167150 Sheet metal ribbon coating apparatus Sep. 11, 1979

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