Contrivance for passing a grasping device for a thread into the

Sewing – Elements – Needles

Patent

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Details

D05B 8702

Patent

active

051430053

ABSTRACT:
This contrivance includes a support (1), in which a tubular element (5) is mounted to slide, the tubular element containing a rod (6) mounted to slide in it and subjected to the action of a restoring spring (7) fixed to the support (1). At its lower end, the element (5) has two shells (10, 11) forming a cage (9) in cooperation with a belt (13) that is solid with the rod (6) and is moreover connected to the shell (11) by a second restoring spring (15). An element (17) is mounted to slide horizontally in the shell (10) and carries a hook (18) for grasping the thread, the movement of which hook is controlled by the joint action of a slideway (19), solid with the belt (13), and a dog point (17a) solid with the element (17). Any relative displacement of the shells (10 and 11) and of the belt (13) leads to an axial movement of the element (17) along a path such that the hook (18) is made to pass through the eye (c) of the needle (4) to grasp any thread placed on a support (22) solid with the element (17) affixed to the shells (10 and 11) of the cage (9). This contrivance may be used for threading the eye of a needle of a sewing machine in particular.

REFERENCES:
patent: 2655886 (1953-10-01), Ingwer
patent: 2704526 (1955-03-01), Benink et al.
patent: 2707448 (1955-05-01), Naas
patent: 2767671 (1956-10-01), Shapiro
patent: 3485194 (1969-12-01), Eguchi
patent: 3502045 (1970-03-01), Hanyu

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