Self-adjusting presser foot for sewing machines

Details Self-adjusting presser foot for sewing machines Self-adjusting presser foot for sewing machines

1985-08-27

1987-02-17

Schroeder, Werner H.

Sewing

Elements

Presser devices

403 90, 403122, 403375, D05B 2900

Patent

active

046431160

ABSTRACT:
A sewing machine presser foot with a shank and a sole plate wherein the shank carries at its lower end a spherical portion extending into a complementary socket of the sole plate so that the latter is free to swivel about several intersecting axes which pass through the center of the spherical portion. A U-shaped spring couples the sole plate to the shank and limits the extent of movability of the sole plate with reference to the shank, either alone or by cooperating with two transversely extending stubs which are provided on the shank at the opposite sides of the spherical portion and extend, with freedom of vertical movement, into slots which are machined into two lateral walls of the sole plate.

REFERENCES:
patent: 747163 (1903-12-01), Gneist
patent: 1625616 (1927-04-01), Long
patent: 1639441 (1927-08-01), Spahr
patent: 1779057 (1930-10-01), Tolmach
patent: 1930628 (1933-10-01), Smallbone
patent: 2949085 (1960-08-01), Schenkengel
patent: 3304896 (1967-02-01), Laidig
patent: 3375044 (1968-03-01), Peterson
patent: 3604044 (1971-09-01), Johnson
patent: 4066369 (1978-01-01), Furtah
patent: 4214540 (1980-07-01), Cook
patent: 4526119 (1985-07-01), von Hagen

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