Singer Machine No. 95-1 Rotating Hook
Mechanism of Machine No. 95-1, the modern high-speed lock-stitch Machine for light fabrics, 3,500 stitches per minute
This machine, for power operation only, has a rotating hook with stationary bobbin case enclosing the bobbin; the hook is carried upon the end of a small shaft driven by a belt from the arm shaft and operates without any friction; the outside of the hook is always perfectly clean and no work can be injured by soiled thread; the machine sets firmly and without vibration on the table, the stitch is firm and even and produced with comparatively light tensions upon both upper and under threads.
This machine was placed on the market in 1911.