Rotary hook for sewing machine

A rotary hook assembly for a sewing machine of the type having a needle which reciprocates between an upper position and a lower position and which is provided with an eye for an upper stitch-forming thread and a rotary hook rotatable about a horizontal axis having a non-rotating basket therein for the reception of a stitch-forming lower thread about which said rotary hook rotates, said hook having a bottom wall extending perpendicular to said horizontal axis which passes through the center of said bottom wall and a circumferential wall extending axially to a front edge, a break in said circumferential wall extending from said front edge in the direction of said bottom wall and defining a beak portion adapted to capture a loop of the upper thread formed at the level of the needle eye when the needle moves upwardly from its lower position to its upper position, said beak portion projecting outwardly relative to the outer hook circumferential wall, said outer hook being further provided with a body-guard attached to the circumferential wall,

• the improvement residing in that said beak projects substantially tangentially outwardly relative to the outer hook circumferential wall to an extent which enables it to capture the needle loop of the needle which in its lowest position is outside the interior of the inner basket and said body-guard is provided with a point-shaped end adjacent to and disposed radially inwardly of said beak.