| 摘要 |
477,248. Sewing-machines. MAUSERWERKE AKT.-GES. April 14, 1937, No. 10631. Convention date, April 16, 1936. [Class 112] A presser-foot b has the sole portion a provided with one or more yielding runners f consisting of a closed spring band encircling the sole and providing a space between the band and the bottom of the sole to provide a resilient clearance for cross seams s as shown in Fig. 6. The sole may be shouldered as at k and i, Fig. 9, to accommodate the spring runners. |
