US1564603A - Loom - Google Patents

Description

Dec. 8, 1925- 1,564,603 J. G. MARTIN LOOM Filed Jan. 5. 1924 6 Sheets-Sheet 1 INV R 70272 vrdwz fie}??? h A TTORNE Y.

Dec. 8, 1925- J. G. MARTIN LOOM Filed Jan. 5. 1924 6 sheets-Sheet 2 u yuan/J [,NVENTOR.

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Dec. 8, 1925- J. G. MARTIN LOOM Filed Jan. 1924 6 Sheets-Sheet 5 I N V EN TOR. 75fi7z 60761072 /7Zar/'z'7z A TTORNE Y.

J. G. MARTIN Dec. 8, 1925.

LOOM

Filed Jan. 1924 6 Sheets-Sheet 4 I N VEN TOR 75/?7z Gordon War]??? A TTORNIZY.

Dec. 8, 1925- J. G. MARTIN LOOM Filed Jan. 5. 1924 6 Sheets-Sheet 5 1 N V EN TOR. c755 6"0ra 02z 7724i? I B I ATTORNEY.

Dec. 8, 1925- 1,564,603 J. G. MARTIN LOOM Filed Jan. 5, 1924 6 Sheets-Sheet 6 ATTORNEY.

Patented Dec. 8, 1925.

UNITED STATES PATENT OFFICE.

JOHN GORDON MARTIN, OF LA FORTE, INDIANA, ASSIGNOR T0 KUMFY KA'B COM- PANY, OF LA FORTE, INDIANA, A CORPORATION OF INDIANA.

LOOM.

Application filed January 5, 1924. Serial No. 684,586.

To all whom it may concern:

Be it known that 1, JOHN GORDON MAR- TIN, a citizen of the United States, residing at La Porte, in the county of La Porte and State of Indiana, have invented certain new and useful Improvements in Looms, of which the following is a specification.

The invention relates to looms, and has for its object to provide a device of this character particularly adapted to handle relatively coarse cord for weaving matting or fabrics, and more especially adapted for weaving body paneling of baby carriages and for similar uses.

A further object is to provide a loom wherein the weft is fed through the shed of the loom alternately from opposite sides by a single shuttle, which shuttle during the starting of its flight from opposite sides grips the end of the weft. and carries the same across the shed, releases the weft as the shuttle enters the shuttle boxes. The weft is fed to the shuttle at opposite sides of the lay from spools or coils which may be located adjacent the sides of the loom, thereby obviating the use of weft spools on the shuttle, which is practically impossible where relatively heavy coarse cord or material is used.

A further object is to provide means for gripping the ends of the weft cords and frictionally holding the same normally in elevated position where they will not be gripped by the shuttle or engaged by the shuttle as it enters the shuttlebox at one side of the loom in its flight from the other shuttle box. The means for gripping the ends of the weft cords and holding the same in normal elevated position is controlled by the picker sticks at opposite sides of the loom, the initial movement of either picker stick lowers the adjacent weft end gripping member to position where it will be gripped by the shuttle and carried across the shed, at which time the other picker stick is in inoperative position, thereby maintaining the other weft end gripping member raised and allowing the shuttle to enter the last named shuttle box without engaging the gripping member. p

A further object is to provide automatic means for releasing the ends of the weft cords as the shuttle enters the shuttle box at the ends of its flight.

it further object to provide at the opposite sides of the loom cutters actuated by rollers carried by the lay, upon the forward movement of the lay for severing the weft cords after each flight of the shuttle.

A further object is to yieldably mount the cutters whereby if for any reason, for instance kinks in the filler cord, the shuttle fails to fully enter either shuttle box, the lay as it moves forwardly will strike the yieldably mounted cutter and will force the same forwardly, thereby preventing injury to either the cutter or the shuttle.

A further object is to provide the shuttle with a fixed gripping jaw and a transversely movable gripping jaw, and spring means for normally forcing said jaws towards each other. The movable gripping jaw is provided with a projection adapted to engage the walls of the shuttle boxes as the shuttle enters the same for forcing the jaws apart and releasing the weft cord, said jaws when the shuttle leaves the shuttle boxes, grip the weft cord'ends which have been previously lowered upon the initial movement of the picker sticks. I

With the above and other objects in view the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawing, described and claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawing Figurge 1 is a front elevation of a loom of conventional form, showing the cutters and weft feeding mechanism applied thereto.

Figure 2 is a perspective view of a portion of a loom, showing the weft feeding mechanism, the cutter and the shuttle leaving the shuttle box.

Figure 3 is a perspective View of the cutter, showing the lay in forward position for operating the cutter.

Figure 4 is a pers ective view of a cutter and lay, showing the shuttle entering one of the shuttle boxes.

I Figure 5 is a top plan view of the weft feeding mechanism and one of the cutters.

Figure 6 is a front elevation of one of the shuttle boxes, showing the weft cord grip- Gti ping mechanism in raised osition, and

showing said grippingmember in lowered position in dotted lines.

Figure 7 is an enlarged side elevation of one of the weft cord grinping members in raised position and the cord guide in section. Figure 8 is a front elevation of one of the weft cord grips.

Figure 9 is a horizontal sectional view through a portion of one of the shuttle boxes and a weft cord guide, showing the shuttle artially out of the shuttle box in its initial shooting the shuttle etc. are all mechanically operated and function in the usual manner and in their proper order, the numeral 1 designates the lay which moves forwardly for laying the weft after each shuttle operation. Disposed at opposite ends of the shed 2 of the lay are s uttle boxes 3, into which boxes the shuttle 4 is projected in the usual manner by means of the picker sticks 5, which picker sticks operate in the conventional manner alternately at opposite sides of the loom. It has been found where relatively heavy cord is used, such for instance as used in weaving matting or fabric, or paneling for baby carriages, weft spools cannot be carried by the shuttle as too frequent replacement of the weft spools and stoppage of the loom would be necessary.

To obviate this difficulty the cord 7 isfed into the machine from coils 8 disposed at opposite sides of the loom through curved uides 9 carried by the outer ends of the shuttle boxes 3, therefore it will be seen that the supply of cord is not carried b spools carried by the shuttle 4. Hinge y connected at 10 to the inner ends of the shuttle boxes 3 are plates 11 through the slots 12 of which the cord 7 extends, and thence through U-shaped guides 13 carried by the under sides of the plates 11, in which guides the ends of the cord 7 are frictionally held by blocks l twhich are carried by pivoted spring actuated finger members 15. The

blocks 14 frictionally hold the cord 7 so that kinks will be prevented in the cord,

after the end 16 thereof has been gripped by the shuttle and is being carried across the shed 2 to the shuttle box at the other side awn sired, for instance for inserting the end 16 of the cord by the operator placing his finger on the finger engaging member 1? for forcing the same downwardly to the dotted line position shown in Figure 7. The plates 11 are alternately raised and lowered according to which icker stick 5 is moving, however when t e picker sticks are on their outward strokes andreach the ends of said strokes the upper ends thereof engage the blocks 18 which are adjustably mounted on the rods 19, which rods have their outer ends slidably mounted in brackets 20 carried by the shuttle boxes 3 and are normally forced inwardly by means1of springs 21. Springs 21 are compressed by the outward movement of the picker sticks and consequently the rods 19 are moved in the direction of the arrows a, which action causes an outward pull on the upwardly and outwardly extending arms 22 which are carried by rock shafts 23 mounted on the upper sides of the shuttle boxes 3 and transversely disposed thereon. The shafts 23 are provided with upwardly and inwardly extending arms 24, which arms are provided with link connections 25 with the plates 11, therefore it will be seen that when the picker sticks 5 are in their outer positions the plates 11 will be held in raised position and consequently the ends 16 of the cords 7 will be held as well as the guides 13 in a position where they will not interfere with the shuttle el entering the shuttle boxes when projected across the shed 2 by either picker stick 5. As either picker'stick moves inwardly for projecting the shuttle at across the shed 2, it moves out of engagement with either block 18, thereby allowing the adjacent spring 21 to force the rod 1.9 inwardly and consequently lower the adjacent plate 11, which action will position the guide 12 in the longitudinally disposed channel 26 of the shuttle 4i, and between the clamping jaws 27 and 28- carried thereby, whereby when the shut-tle 4 leaves the shuttle box 3 and the movable clamping jaw 27 allowed to move.

towards the fixed clamping jaw 28, the end 16 of the cord 7 will be gripped between said jaws, and said cord will be trailed through the shed 2 to the shuttle box at the opposite side of the machine, which shuttle box has its plate 11 held in raised position by the picker stick 5 at that side of the loom, and consequently the shuttle will enter the shuttle box without interference. As the shuttle at enters the shuttle boxes the curved surfaces 29 of an extension arm 30 engages the curved surfaces 31 of the shuttle boxes, thereby forcing the movable clamping jaw 27 away from the fixed clamping jaw 28 against the action of the spring 31, and consequently the weft cord is released. The above operation continues alternately from opposite sides of the loom, and consequently the weft cords are laid across the shed and drawn into the machine from opposite sides of the machine.

After each fli ht of the shuttle the lay 1 moves forwardly for laying the weft cord which has been previously carried across the shed of the loom.

On account of the heavy nature of the material used for the weft cord and the pulling into the machine of the weft cord from opposite sides of the lay and from separate and independent sources of sup ply, it is obvious that it is necessary to sever the weft cords at the end of each flight of the shuttle 4, and to accomplish this result shears 32 are provided at opposite sides of the frame and supported on the side rails 33 of said frame. The shears 32 comprise body members 34, which are adjustably secured to bars 35, which bars are carried by blocks 36 mounted on the siderails 33 of the frame, and conse uently the body members 34 may be move outwardly or inwardly for adjusting the lower cutter 37 of the shears 1n relation to the shed 2 and the lay 1. The body members 34 are slidably guided by the bars in their forward movement in relation to the loom, the purpose of which will presently appear. Each body member 34 is providedwith a shaft 38, which is slidably mounted in a bearing 39 of the block 36 and is provided with a transversely disposed pin- 40, which engages the outer side of the block and limits the inward movement of the body member 34 under the influence of the coiled spring 41 which surrounds the shaft 38 and is interposed between the body member 34 and the block 36, therefore it will be seen that the cutters are yieldably mounted whereby, if for any reason the shuttle 4 does not entirely enter either shuttle box and the lay 1 moves forwardly, the shuttle 4 will engage the blunt end 42 of the cutter blade 37, the shear will yield and move forwardly thereby preventing damage to the shears or to the shuttle. Pivotally connected at 43 to the body 34 of each shear is a jaw 44, which jaw is provided with a forwardly extending member 45, which overlies the cutter 37 and is pro vided with a cutter 46, which cutter is adapted to be moved downwardly upon the forward movement of the lay 1, by the engagement of one of the rollers 47 carried at opposite sides of the loom with the upper curved edge 48 of the forwardly extending member of each ivoted jaw, thereby forcing the cutter 46 d ownwardly, after the lay has forced the weft cord between said cutters, and consequently the weft cord is severed at opposite ends of the lay, after the shuttle has entered the shuttle boxes. The jaws 44 of each shear are held in normal raised position by means of rods 49, which rods are pivotally connected at 50 to the jaws 44, and have their ends slidably mounted in bearings of brackets 51 carried by the blocks 36. The rods 49 are provided with link connections 52 with the blocks 36, and consequently the coiled springs 41 force the body members 34 of the shears inwardly towards the lay, thereby maintaining the jaws 44 in normal position, however when the rollers 47 on the forward movement of the lay 1 force the cutters together, a pull of the rods 49 and interposed between the.

brackets 51 and washers 54 carried by the rods, consequently upon rearward movement of the lay aftera weft cord cutting operation, the springs 53 through the medium of the rods impart a pull on the shear jaws 44 and move the same to open position.

From the above it will be seen that a loom is provided, which is particularly adapted for weaving relatively heavy material, and drawing the weft cords into the machine from opposite sides of the lay through the medium of a shuttle, which shuttle grips the ends of the cords and carries the same across the shed. It will also be seen that lay operated shears are provided for severing the weft cords after each flight of the shuttle, and upon the forward movement of the lay, and after the cord has been released by the clamping members of the shuttle thereby allowing the shuttle, upon again leaving the shuttle box, to pick up the cord adjacent said shuttle box and carry the same over the shed. It will also be seen that the shears are yieldably mounted, thereby obviating damage to the shuttle or shears, if for any reason the shuttle does not en tirely enter the shuttle boxes and isforced into engagement with either shear upon forward movement of the lay.

The invention having been set forth what is claimed as new and useful is z 1. The combination with oppositely disposed shuttle boxes of a loom, a shuttle 1novable from one shuttle box to the other and adapted to grip and carry cord from one posed shuttle boxes, a shuttle movable from one shuttle box to the other, a gripping member carried by the shuttle and normally in inoperative position when within the shuttle boxes and in opposite position when in flight between the boxes, picker sticks for operating said shuttle, of means controlled by the picker sticks for positioning cords in the gripping member as the shuttle leaves the shuttle boxes, and means for releasing said cords as the shuttle enters the boxes.

3. The combination with oppositely disposed shuttle boxes, a shuttle, picker sticks for projecting said shuttle from one shuttle box to the other, clamping jaws carried by the shuttle, spring means for normally forcing the clamping jaws together, means co- 0 erating with the shuttle box for forcing t e jaws'apart as the shuttle enters the boxes, of means for positioning cord ends between the clamping jaws as the shuttle leaves the boxes, said last named means being controlled by the picker sticks.

4. The combination with oppositely dis-- osed shuttle boxes, a shuttle, picker sticks or projecting said shuttle from-one shuttle box to the other, clamping jaws carried by the shuttle, means for normally forcing the clamping jaws apart, means cooperating with the shuttle boxes for forcing the jaws apart as the shuttle enters the boxes, of means for positioning cord ends between the clamping jaws as the shuttle leaves the boxes, said means comprising pivoted plates carried by the-shuttle boxes and normally held raised when the picker sticks are in outer positions, stops with which said picker sticks engage, lever connections between the stops and the pivoted plates, cord guides carried by the under s1des of the plates, said cord guides being positioned whereby when the plates are lowered upon an inward movement of the picker sticks they will be disposed between the clamping jaws carried by the shuttle.

5. The combination with oppositely disposed shuttle boxes, a shuttle, gripping jaws carried by the shuttle and in lnoperative position when disposed within ,the boxes and in operative position when in flight between the box'es, picker sticks for projecting the shuttle, of pivoted plates carried by the shuttle boxes and normally held raised when the picker sticks are in outer positions and lowered when the picker sticks move inwardly, cord guides carried by the under sides of the plates and positioned whereby when the shuttle leaves the boxes it will pass between the clamping jaws immediately before the jaws move together.

6. The combination with oppositely disposed shuttle boxes, a shuttle movable between saidboxes, clamping jaws carried by the shuttle and maintained in spaced relation when the shuttle is within the boxes and in close relation when the shuttle is in flight between the boxes, picker sticks for projecting the shuttle, of means for feeding the ends of cords to the shuttle as-it leaves the boxes, said means comprising hinged plates carried by the shuttle boxes, lever means for normally holding the plates in raised positions and controlled by the picker sticks when in their outer positions, U- shaped cord guides carried by the under sides of the plates and positioned whereby cord ends carried thereby will be positioned to be gripped by the clamping jaws as the shuttle leaves the shuttle boxes.

7. The combination with oppositely disposed shuttle boxes, a shuttle, gripping jaws carried by the shuttle and in inoperative position when disposed within the boxes and in ,o erative position when in flight between t e boxes, icker sticks for projecting the shuttle, o pivoted plates carried by the shuttle boxes and normally held raised by the picker sticks when in outer position and lowered when the picker sticks move inwardly, cord guides carried by the under sides of the plates and positioned whereby when the shuttle leaves the boxes it will pass between the clam )ing jaws immediately before the closing of the clamping jaws, and spring actuated friction blocks carried by the guides for frictionally holding the cords.

8. The combination with a loom shuttle adapted to pick up and carry across the shed of a loom weft cords from opposite sides of the loom, of oppositely disposed gripping jaws carried by said shuttle, one of said jaws being fixed and the other jaw provided with an extension extending under the fixed jaw and beyond the side of the shuttle and adapted to engage the wall of a shuttle box for forcing the jaws apart, and spring means for normally forcing the movable jaw towards the fixed jaw.

9. The combinaton with a loom, of yieldably mounted weft cord severing shears at opposite sides of the loom, said shears comprising body members, said body members being slidably mounted in brackets againstthe action of springs, means for limiting the inward movement of the body members. jaws pivoted to the body' members, and spring means for normally maintaining the jaws in raised positions.

10. The combination with a loom, of a yieldably mounted weft cord severing shear carried by said loom, said shear comprising a substantially horizontally disposed bracket, a body member slidably mounted in said bracket, a cutting jaw carried by said body member, a shaft carried by the body member and slidably mounted in a bearing of the bracket, spring means cooperating with the body member for forcing the same in- IOU wardly, means for limiting the inward her, a cutter jaw pivoted to the body memmovement of the body member, a cutter ber, a rod plvoted to the pivoted 'aw at jaw pivoted to the body member and spring one of its ends, said rod extending t rough means for normally maintaining the piv a bracket bearing, and spring means car- 5 oted cutter jaw in inoperative position. ried by the rod for normally holding the 15 11. The combination with a loom, of a pivoted jaw in raised position.

yieldably mounted weft cord severing shear In testimony whereof I afiix my sigcarried thereby, said shear comprising a nature.

yieldabl mounted body member, a cutter 10 carried y the inner end of the body mem- JOHN GORDON MARTIN.

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