US2528762A - Run repairing needle - Google Patents

Description

Nov. 7, 1950 E. LALANNE 'ET AL RUN REPAIRING NEEDLE Filed Jan. 5, 1946 11 INVENTORS. Edm wul ZaZanne y Zfierre 'mmi ean Patented Nov. 7, 1950 UNITED STATES "PA-TENT! OFFICE? RUN REPAIRING NEEDLE Edmond Lalanne and Pierre Grandjean,

Marseilles, France Application'Januaryt, 1946, Serial No. 638,756

7 Claims. (Cl. 66+117) The present invention relates to a needle formaking up knitted materials and repairingsame (taking up stitches) For thatkind of materials,- and especially for the users of these appliances, can be abolished r by the needle subject matter of-this inventions-- This needle, the basic principle of which excludes springs, makes the stitch with the help of a single oscillating cam.

According to the drawings:

Fig. 1 gives a large scale side view of the oscillating cam needle as well as a longitudinal section of same.

Fig; 2 gives a plan of the needle depicted on Fig.

Figs. 3, 4 and 5 illustrate the working of the oscillating cam while making a mesh at different periods and drawn the same way as Fig. 1.

The needle according to the present invention consists of a body 9 the cross section of which looks like a suitably flattened tube with an empty space the inside width of which is suflicient for the fitting of a cam l0, so weighted that its weight alone is sufiicient to bring it back to its position of rest, Figs. 1 and 3. The said cam is the main operating member and principal feature of this invention.

One of the ends of th body 9 is bent over in order to form the hook H with the opening l2 enabling the entry of a thread on this hook. The other end of body 9 is shaped in the usual Way for handling.

Cam l oscillates round trunnion l3 and has in its profile a first projection I4 which protrudes into the curve of the hook and takes the pressure of a thread forming half a stitch and it possesses also an inclined surface I on which slides a second thread forming another half stitch in which the first one must penetrate in the usual way, surface I5 being extended in the general direction of the hook to provide a second projection of the cam I0 adapted to overlie the point of the hook.

The needle built as described, and'acoordingc-Q to principles which are considered new, works as follows:

Hook ll entering the material pushesapart the stitches formed by threads 3'and 4, see Figs 3, 4, and 5. Thus the pull on the needle in the. direction 01: the arrows A causes thread -3, Fig. 3,; to follow body 9 and the inclined side of; opening l2, thus entering the hook:and coming in contact with first projection I' l of cam Ill; the contact of the thread and the slight pressure exerted:

causes cam Ill to swing. on'its trunnion-l3, po-

sition shown on Fig. 4; this motion, see'Fig. l, causes the inclinediportion l5 to starton its'way out of opening 12 iQmOI'dGIrtO catch-.and guidek thread 4, thus avoiding its passing into hookil i.

This. movement also causes second projection l 5" to cover point 6. :The=pullof-thread-..on first projection I4 continuing, cam l0 pursues its motion until thread 3 hits the bottom 6a of hook H, see Fig. 5. At that moment thread 4 which is not influenced by the pull on the needle passes over thread 3 thus forming a stitch, it being well understood that threads 3 and 4 each go to make up half a stitch.

In the above position, see Fig. 5, we must especially consider th fact that the third projection I6 of cam Ill hits the inside of body 9 squarely, and that point 6 of hook ll never gets into contact with cam It protecting it, the hook therefore not receiving any shock, whatever the speed of the working of the needle and the subsequent motion of the cam l0 may be. The needle can thus be worked to the best advantage.

The result described above shows a very great improvement on the needles in use at present, none of which can show a hook protected in such and effective way.

We must also consider the fact that this needle Works without the help of any spring, which simplifies its manufacture and lengthens its life as it has the smallest possible number of parts, that it cannot get out of order and that its design gives it remarkable strength, which is not the case for other known needles which are very fragile becaus their parts lack strength. The main feature of this invention rests therefore on the advantages described above and in the use of a cam with very small angular displacement.

Having now particularly described and ascertained the nature of our said invention, an embodiment of which is shown as non-limitative exampl in the accompanying drawings and which may be carried out in other ways not shown without thereby departing from the spirit and scope of th invention, what We claim is:

1. A needle for making and repairing knitted material comprising a tubular body having a curved closed end and an aperture adjacent said end having one side inclined inwardly toward said closed end and toward the longitudinal axis of said body. and the other side constituting a curved hook opening away from said closed end, and an oscillating member located inside said body having a first projection adapted to projacent said end, the side of said aperture remote from said closed end being disposed at an angle to the longitudinal axisof said tubular body and. inclined inwardly in direction and the side of said aperture adjacent said closed end being undercut and curved to form a hook, including a point directed toward said aperture and an oscillating cam located inside said body having a first projection adapted to be engaged and displaced by a first thread'forming a half stitch before said thread engages the bottom of said hook, an inclined portion adapted, when said trude in the curve of said hook, an inclined portion adapted to project beyond the inclined side of said aperture, and a second projection between said first projection and said inclined portion adapted to obturate the opening and outwardly overlie said hook.

2. A needle as claimed in claim 1 wherein said body has a flattened cross-section having two straight sides and two curved parts joining said straight sides,'said aperture being in one of said curved parts.

3. A needle as claimedin claim 1 wherein said oscillating member pivots on a trunnion fixed transversely of said body.

4. A needle as claimed in claim 1 wherein said oscillating member has a third projection adapted to abut against said body as soon as said second projection obturates the opening of saidhook thereby to prevent said member from making 1 contact with the point of said hook. a

5. A needle as claimed in slaim 4 wherein said oscillating member pivots on a trunnion traversing said member at a point spaced from the center of gravity of said member. 7

6. A needle for making and repairing knitted material comprising a substantially tubular body having a curved closed'end and an aperture adfirst projection is displaced, to engage a second thread forming a half stitch, said portion being inclined at an angle oppositely to the inclined side of said aperture, a second projection adapted to overlie and to obturate said hook when said first projection is displaced by a thread, and a heel adapted to abut against the interior wall of said body thereby to prevent said oscillating portion from contacting the point of said hook.

7. A needle as claimed in claim 6 wherein said oscillating cam is pivoted on a trunnion fixed" transversely of said body and traversing said cam at a point located between the center of gravity of said cam and said hook.

EDMOND LALANNE. PIERRE GRANDJEAN.

REFERENCES CITED The following references are of record in the u fileof this patent: I

UNITED STATES PATENTS Number Name Date I 1,926,271 Eaton Sept. 12, 1933 2,012,099 Henderson Aug. 20, 1935 2,081,515

Trejo May 25, 1937

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