US2449691A - Reweaving machine - Google Patents

Description

Sept. 21, 1948. M, T, .5EAL 2,449,691

RE-WEAVING MACHINE Filed Oct. 10, 1947 2 Sheets-Sheet 1 INVENTOR. MIL 12/250 7 DEA L BY wdxmw SefiEELW iS. M,T.1DEAL, 2,449,691

REb-WEAVING MACHINE Filed Oct. 10, 1947 2 Sheets-Sheet 2 WVENTQQ MILDRED IDEAL FIG. 11 I Patties Sept. 21, ms

UNITED STATES PATENT OFFICE.

REWEAVING MACHINE MildredT. Deal, Cleveland, Ohio Application October 10, 1947, Serial No. 779,055

g 11 Claims.

1 This invention relates to re-weaving machines and particularly to machines adapted to repair damaged textile fabrics. 7 r

The primary object of this invention is to provide a machine which automatically weaves into the fabric over the damage therein a patch of 7 become apparent from a reading of the follow ing specification and claims, together with the.

accompanying drawings, in which like parts are referred to and indicated by like reference characters and wherein:

Figure 1 is a side elevation, partly in section, of

the re-weaving machine; 1

Figure 2 is a horizontal View, partly in section,

of the machine taken along the line and in the direction of the arrows. 2-2 of the Figure 1;

Figure 3 is an enlarged side view ofapart of the machine, namely the sub-table and plates used to retain and periodically shift the material to be rewoven; Figure 4 is an enlarged side view of the afore said sub-table and plates, together with their operating mechanism;

Figure 5 is a top view of the sub-table and.

plates shown in the Figure 3;

Figured-is an enlarged side view of the latchtype needle used in the machine and part of the holder therefor; i

Figure '7 is a vertical sectional view of the needle and holder taken along the line and in the direction of the arrows l-'! of the Figure 6'; 1

Figure 8 is a plan view of a patch or piece of ravelled woven fabric to be woven into the main.

fabric; a

Figure 9 is a plan view of the patch or piece of I fabric shown in the Figure 8 rewoven into the main fabric;

Figure 10 is a side elevation of certain parts of 1 the machine retaining the main fabric and the patch thereon partly rewoven therein; and

Figure 11 is a top plan view of the parts and pieces shown in the Figure 10.

Conducive to a clearer understanding of this invention, it should be noted that a methodand 2 means for manually repairing textile fabrics is disclosed in British Patent 505,010, granted to Alfred and Sarah Ross about May 1, 1939. The

method, as. disclosed by Ross, shows how a patch of material, the sides of which have been ravelled,

is woven into a piece of similar fabric so that the repairis virtually invisible. This British patent also shows the use of a special needle, known as .a latch-type needle, for'drawing the loose or ravelled patch threads through the fabric. The

instant invention isof a machine for doing auto matically, fast and sure, what' the British patent discloses as having been done manually much slower.

Referring to the drawings, thereisshown a table 20 designed, to conveniently support a garment or large piece of fabric 16 which has a tear or hole I! therein to be repaired. Mounted on the tablethere is an upright support 22. This support is hollowand is securely attached to the.

table by means of the nuts and bolts 23, asshown. Integral with the support 22 there is a forwardly extending arm24 which is also hollow and contains some of the operating mechanism. This support extends,-as shown, over the working portion of the table. 1

Below the top of the table there is a box on 1 support 69 for a small electric motor 63, which is used to drive the re-weaving mechanism.

The inside of the vertical support 22 has a bearing bracket 29 to rotatably. receive a drive shaft. The inside of the horizontal arm 24 has a slotted bracket 25 and a guide pin 26 for certain hereinafter described parts of the needle member. This horizontal arm also has a pair of spaced bearings 39 for a horizontal shaft 45 and worm 46.; A large opening or slot 21 is made in the bottom of the horizontal arm 24 in which there moves a depending bar 36 having the latch needle .30

thereon.

The latch-type needle chine is clearly illustrated in Figures 6 and 7 and consists of a shank portion 3| and a specially pointed and hooked end32. At the pointed end 32 and just inside the hook there is a small latch 33 pivoted to the needle by means of the pin 34.

The latch is made to swing back onto the shank when the needle is inserted into a piece offabric and to swing forward to close the hook when the needle is withdrawn. Needles of this type are well knownin the art.

The special needle 30 is firmly mounted in a holder 35 which, in turn, is attached to the depending bar 33. The depending bar3f6 projects through the slot Zland is ableqto move forwardly so used with this m aand rearwardly therein. Integral with the bar 36 there is an arm portion 37. This arm portion 37 has a horizontal slot 38 therein which slidably engages the guide pin 26 as is clearly shown in the Figure 1. This arm also slides freely back and forth through the bracket 25. The bracket 25 and the pin 26 guide the arm 31 and depending bar 36 so that the needle 36 attached to the bottom thereof moves longitudinally over the working portion of the table and'partieula'rly over the sub-table t hereinafter described.

The electric motor 68 has a bevelled gear ell mounted on its drive shaft. The gear engages and turns a similar gear M connected to the vertical drive shaft :32 which extends upwardly through with a bevelled gear 53 which engages and turns the fourth bevelled gear M. The horizontal shaft 45 is connected to the worm ct mounted between the bearings 39. This worm 45 rotates a small worm gear-4'! axiall mounted on the inside wall of the horizontal support 25. A sn'iall arm 48 is linked to the slotted arm til by 'me'ans "of the two ins as. The small link as is mounted on center on the worm gear t! so that rotation "of the worm gear will cause the arm 37 to reciprocate longitudinally in thehorizontal support 24.

The table member has 2. here therein at its work portion and in this hole there is mounted a small block of wood or metal referred to and indicated herein as a sub-table at. The subtable 5!] has arough or serrated top surface 5! which is normally one plane with the top of the table member 20. This top surface is made rough or serrated in order to better engage the fabric [6. Ae ross the top of the sub-table 5t there is a groove or channel 55 whichis aligned With'the' latch needle 39. This groove issl'ightly wider than the needle and when the sub-table is raised as hereinafter described, it does not "obstruct the free reciprocal longitudinal movement of the needle which is normally erase to the 'surfs'ice of the table top. The bottom of the sub-table 518 has an arm 52 thereon which engages a small crank element 53. This crank element 531s connected to a gear train 54 which, imam, is com nected to the motor til. Rotation of the motor causes the crank element 52 to raise and lower and to move laterally the sub-table -59 periodically.

At the sides of the sub-table there-are plates 60 which have teeth -61 on the top edges thereof asfshown. The front and back plate's fi'fl are'com nected together at the 'ei'idsof the sub-table 5%! so that they practically enclose or surround the sub-table. The connecting members are indicated by the reference character 66. Each side'pl'a'te 60 also has -a notch 55 at the top edge thereof which is in line with the groove 55 in the subtable 50. These notches 65 permit the needle to -project 'u-nobs'tructiv ely through the plates'and sub-table.

The bottom of each Of the connected plates has a horizontal slot I 62 which engages a second crank element This second crank element 63 is cdn'nected t0 8 geet'r t1ain54 which is also connected to the motor 63 in a way which causes the two para-1191 plates 69 "to be moved 1-119 and down periodically as shown the Figure 3;

Moun'ted on the "horizontal arm or support 24 there is a depending arm 28 andbracketllwhich supports-a comb 1B. This cor'nbis iribu'rlte'det an incline directly over the si'ib-ta bletb. The

depending bracket -H is'connectedto the arm- 28 by means of a pi'ntle pin "f2- and 1-8 snows-a to swing laterally in a small arc with the hereinafter described. fabric and patch It and it respectively.

To use this device, the fabric it to be repaired or rewoven is placed on the table 20 so that the hole or damage therein is directly over the sub-table 50, with either the warp or weft of the fabric running parallel with the serrations of the sub-table or in line with the needle. A patch it of similar material slightly larger than the hole I! is prepared. This is done by ravelling the four sides thereof to form a patch somewhat as shown in the Figure 8. This patch [8 is matched with the fabric It so that the weave or ,,pat tern isjuxtaposed. The loose threads of the near ravelled edge l9 are inserted in the comb 10in anorderly and regular manner. Both the fabric l5 and the patch are held down on the sub-table near the end plates 66. The motor 63 is set in operation and the plates 60 are caused to move up and down slightly. Simultaneouslythe needle 38 is caused to move forward and thus passes in and out of the fabric is a manner similar to a darning operation.

At the end of the forward movement and while the needle 30 is still in the fabric, the small hook 32 at the point thereof engages a thread [9: in'

the comb m. This thread is pulled out of the comb and drawn into the fabric it. When the needle 3t reaches its maximum rearward position, it stops momentarily and the sub table 51 moves to one side the distance of one tooth of the comb. The tub-table 50 then'drops below the top surface of the "plates 69 or to the place of beginning. This somewhat rotary motion moves the fabric and patch so that they are properly positioned to receive another insertion ofthe needle 30. This is repeateduntil all of theloose threads on that "side of the patch are woven into the fabric.

The fabric and patch are'then turned or positioned so that the other threesides of the patch are similarly rewoven into thefabric. After all four sides of the patch are thus woven, the loose ends thereof are trimmed on the so that a new thread or strand ofthe patch may be engaged and drawn through the fabric in a straight line. Th'e arcofnthe swing is only a' small number of degrees and the lateral swing or movement of the comb 70 'is also shor t, if cughly about one inch. If a large patch is to b'e applied to the-fabric, the fabric and patch are then repositioned to move through two or more swings or movements of the comb :as-m'ay be necessary.

It shouldbe pointed- Olit that the various movements of the-needle, the sub-table ands'ide plates are properly timed and synchronized so that the reweavingoperation is smooth and continuous.

It should beunder stood that the devicejas mus" trated and described is somewhat schematic, biit it-s'hould also'b'e understood-that minor changes in structure, especially those relating to the o'rderly synchronous movement of the parts, is simply a matter'of design well within the knowledge of persons skilled in the 'machine weavingor sew- I-Iavi-ng thus broadly disclosed the invention 5, in its preferred form, it should be furtherunderstood that no limitations thereof are intended except those imposed by the scope of the, appended claims.

I claim:

1. A re-Weaving machine, comprising in combination, a table member supporting a piece of fabric to be rewoven, an oscillating member mounted on the tablemember and capable of intermittently raising and lowering the said piece of fabric, a comb member mounted on the table member and supporting a patch, the ravelled ends of which are to be woven into the said piece of fabric, and a latch-type needle mounted on the table member movable in and out of the said oscillated fabric and engageable with a thread of the patch and capable of drawing it through the fabric.

2. A re-weaving machine, comprising in combination, a table member supporting a piece of fabric to be rewoven, a pair of spaced plate members mounted on the table member and capable of raising and lowering the said piece of fabric, a comb member mounted on the table member and supporting a, patch, the ravelled ends of which are to be woven into the said piece of fabric, and a latch-type needle mounted on the table member movable in and out of the said oscillated fabric and engageable with a thread of the patch and capable of drawing it through the fabric.

3. A re-weaving machine, comprising in combination, a table member supporting a piece of fabric to be rewoven, a comb member mounted on the table member and supporting a patch, the ravelled ends of which are to be woven into the said piece of fabric, a latch-type needle mounted on the table member movable in and out of the said fabric and engageable with a thread of the patch and capable of drawing it through the fabric, and an oscillating means mounted on the table member and capable of positioning the piece of fabric with respect to the movable needle to cause the needle to move in and out therethrough.

4. A re-weaving machine, comprising in combination, a table member supporting a piece of fabric to be rewoven, an oscillating member mounted on the table member and capable of intermittently raising and lowering the said piece of fabric, a comb member mounted on the table member and supporting a patch, the ravelled ends of which are to be woven into the said piece of fabric, a latch-type needle mounted on the table member movable in and out of the said oscillated fabric and engageable with a thread of the patch and capable of drawing it through the fabric, and a means for laterally advancing the piece of fabric on the oscillating member the space of one strand of the patch.

5. A re-weaving machine, comprising in combination, a table member supporting a piece of fabric to be rewoven, an oscillating member mounted on the table member and capable of intermittently raising and lowering the said piece of fabric, a comb member mounted on the table member and supporting a patch, the ravelled ends of which are to be woven into the said piece of fabric, a latch-type needle mounted on the table member movable in and out of the said oscillated fabric and engageable with a, thread of the patch and capable of drawing it through the fabric, and a sub-table member having means for engaging and advancing the piece of fabric on the table member.

6. 6. A. re-Weaving machine, comprising in cdiii-r bination, a table member supporting a piece of fabric to be rewoven, an oscillating member mounted on the: table member and capable of intermittently raising and lowering the said piece of fabric, acomb member mounted on the table memberand supporting a patch, the ravelled ends of which are tobe woven into the said piece of fabric, a, latch-type needle mounted on the table member movable in. and out of the said oscillated fabricand engageable with a thread of thepatch and capable of drawing itthrough the fabric, and a movable sub-table member having serrations engageable with the fabric and capable of advancing it a distance corresponding to the width of one strand of the patch.

'7. A re-weaving machine, comprising in combination, a table member supporting a piece of fabric to be rewoven, a pair of spaced plate members mounted on the table member and capable of raising and lowering the said piece of fabric, a comb member mounted on the table member and supporting a patch, the ravelled ends of which are to be woven into the said piece of fabric, a latch-type needle mounted on the table member movable in and out of the said oscillated fabric and engageable with a, thread of the patch and capable of drawing it through the fabric, and a sub-table member having means for engaging and advancing the piece of fabric on the table member.

8. A re-weaving machine, comprising in combination, a table member supporting a piece of fabric to be rewoven, a. comb member mounted on the table member and supporting a patch, the ravelled ends of which are to be woven into the said piece of fabric, a latch-type needle mounted on the table member movable in and out of the said fabric and engageable with a, thread of the patch and capable of drawing it through the fabric, an oscillating means mounted on the table member and capable of positioning the piece of fabric with respect to the movable needle to cause the needle to move in and out therethrough, and a sub-table member having means for engaging and advancing the piece of fabric on the table member.

9. A re-weaving machine, comprising in combinatioma table member supporting a piece of fabric to be rewoven, a pair of spaced plate members mounted on the table member and capable of raising and lowering the said piece of fabric, a comb member mounted on the table member and supportin a patch, the ravelled ends of which are to be woven into the said piece of fabric, a latch-type needle mounted on the table member movable in and out of the said oscillated fabric and engageable with a thread of the patch and capable of drawing it through the fabric, a movable sub-table member having serrations engageable with the fabric and capable of advancing it a distance corresponding to the width of one strand of the patch, and a motor including a cam device raising and lowering the pair of spaced plate members and moving the sub-table member in coordination with the movement of the said needle.

10. A re-weaving machine, comprising in combination, a table member supporting a piece of fabric to be rewoven, a pair of spaced plate members mounted on the table member and having means for shifting the position of the piece of fabric, a comb member mountedon the table member and supporting a patch, the ravelled ends of which are to be woven into the said piece of said fabric and engaeea'bl-e withla thread .of the patch andacapable of drawing it through the fabricya. first oscillatmgmeans mountedonthe table member capable of positioning the piece of fabric with respect to the movable needle to cause the needle to move in and out therethrough, and a second oscillating means mounted on the table member capable 11f shifting the :piece of fabric and the patchithereon the distance of one thread 10 thereof.

MILDRED T.

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