Device having adjacent plates with thread gripping surfaces for

Details Device having adjacent plates with thread gripping surfaces for Device having adjacent plates with thread gripping surfaces for

1989-09-15

1991-08-27

Schroeder, Werner H.

Sewing

Elements

Tensioning

112150, 112255, D05B 4700, D05B 4702, D05B 4704

Patent

active

050424076

ABSTRACT:
A device is provided for controlling the tension of a longitudinally moving thread. The device includes at least two adjacent plates which are applied one against the other and between which the thread passes. The plates, and thus the thread, can be tightened so that the desired tension can be creatred. Opposed surfaces of the plate each incorporate at least one gripping surface for the thread which cooperates with at least one corresponding gripping surface of the other plate. The periphery essentially about the surfaces is formed with at least two indentations arranged in such a way that each indentation of the gripping surface of a plate coincides with at least a portion of a corresponding indentation on the gripping surface of the other plate. At least in one relative angular position of the plates, the pairs of indentations so superimposed define, on the periphery of the gripping surfaces of the plates, two distinct and concave lips, the structure further ensuring the maintenance of the plates in the angular position and imposing on that portion of thread crossing the device at any instant a trajectory such that the thread enters between the gripping surfaces of the plates by one of the lips and leaves by the other lip.

REFERENCES:
patent: 2080893 (1937-05-01), Klein
patent: 2720366 (1955-10-01), Brown
patent: 2758802 (1956-08-01), Carlson
patent: 3000591 (1961-09-01), Backlin
patent: 3347195 (1967-10-01), Gegauf
patent: 3366083 (1968-01-01), Ketterer
patent: 3472190 (1969-10-01), Gegauf
patent: 4092939 (1978-06-01), Knowles
patent: 4111140 (1978-09-01), Gonnai
patent: 4123984 (1978-11-01), Coucombe
patent: 4159005 (1979-06-01), Jimenez et al.
patent: 4246857 (1981-01-01), Gonnai
patent: 4356781 (1982-11-01), Rodda

Affiliated with

Also associated with

Rating

Device having adjacent plates with thread gripping surfaces for does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device having adjacent plates with thread gripping surfaces for , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device having adjacent plates with thread gripping surfaces for will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1407426