Sewing – Elements – Revolving hooks
Patent
1991-03-22
1993-03-02
Nerbun, Peter
Sewing
Elements
Revolving hooks
112292, D05B 5714, D05B 6502
Patent
active
051899736
ABSTRACT:
The bobbin case which is received by the looper has an upstanding generally cylindrical wall which surrounds the looper-thread bobbin. Forming part of the wall is a free-standing finger against which an end of a leaf spring rests. The looper thread, which has been withdrawn from the looper-thread bobbin and wrapped around the finger, is pulled through the constricted place between the leaf spring and the finger and then conducted through a threading slot provided by a radially-extending cam on the outer surface of the wall. The looper thread then comes against an inclined, downward-facing shoulder provided on the outside of the wall, slides down the shoulder, and passes finally into a long horizontal slot in the wall. The looper thread exits the bobbin case at an end point of the horizontal slot for being dependably caught by a thread catcher of a thread-cutting device.
REFERENCES:
patent: 1146406 (1915-07-01), Diehl et al.
patent: 2583538 (1952-01-01), Backlin
patent: 3486473 (1969-12-01), Ross
patent: 3658021 (1972-04-01), Hedegaard et al.
patent: 3709174 (1973-01-01), Garry
patent: 4275675 (1981-06-01), Killinger
patent: 5025737 (1991-06-01), Kamiya
Krumme Thomas
Strohl Robert
Wachter Dieter
Durkopp Adler Aktiengesellschaft
Lewis Paul C.
Nerbun Peter
LandOfFree
Looper which rotates in a horizontal plane for a double lock-sti does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Looper which rotates in a horizontal plane for a double lock-sti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Looper which rotates in a horizontal plane for a double lock-sti will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-120423