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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
4161269 Web clamp Jul. 17, 1979
4140383 Transport mechanism for a photographic film processor Feb. 20, 1979
4138074 Frangible strip threading apparatus for rolling mill Feb. 6, 1979
4138068 Method and device for drawing a rolled photographic film's end out of its cartridge Feb. 6, 1979
4113192 Apparatus for withdrawing the tongue of a film incorporated in a cartridge Sep. 12, 1978
4111122 Method of and apparatus for threading web material preferably into web-fed rotary printing presses Sep. 5, 1978
4079877 Web-dryer threading apparatus having anti-centrifugal structure Mar. 21, 1978
4076400 Microfilm transport with automatic threading Feb. 28, 1978
4070965 Sequential rotary printing press web threading means Jan. 31, 1978
4065042 Web transporting apparatus Dec. 27, 1977
4055289 Photographic apparatus Oct. 25, 1977
4052921 Apparatus for removing webs from cartridges Oct. 11, 1977
4047653 Film retriever Sep. 13, 1977
4003527 Control means for roll sheet feeder Jan. 18, 1977
3995553 Paper web threading apparatus for rotary printing presses Dec. 7, 1976
3934840 Reel assembly Jan. 27, 1976

1 2 3 4 5

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