US2624369A - Jacquard loom harness - Google Patents

Description

Jan. 6, 1953 T. JJSEEL JACQUARD LOOM HARNESS 2 Sl-IEETS-SX-IEET 1 Filed July 30, 1951 INVENTOR- THOMAS J JEEL ,4770AA/E) Patented Jan. 6, 1953 UNITED STATES PATENT OFFICE 1-0 Claims. 1

This invention relates to Jacquard loom liar.-

ness, and it relates more particularly to means in such harness for preventing, twisting of. the harness cords and the resulting winding of the warp ends around thezheddles at the eye portions will occur and in other instances defects in the' Weave are caused. These objections are more pronounced in connection with the use of the heddles made of thin, flat strips of metal or wire, as the necessary untwisting will not take place as readily with such heddlesas with the" older forms in which the heddles'wereofround cross section;

The principal obj ect-of the-present inventionis to provide means for securing the harness c'ords of Jacquard looms in such manner'as'to prevent.v twisting of the'heddles-andthe resultant winding of'the warp-ends-the'reon.

A- further object of the invention is= toprovi'de means of the character aforesaid which will greatly'facilitate the enteringof the warp in that the eye portions of all of the heddles will be:

kept faced in substantially the same direction;

A further object of the invention is to. provide, in mechanism. of the character aforesaid, means for quickly releasing the aforesaid cord securing: means in the event. of improper starting of the loom when said cords are being held against twisting as herein set forth.

The nature and characteristic features of the present invention will be more readily understood from the following description, taken in connection with the accompanying drawings forming part hereof, in which:

Figure 1 is a view partly-in side elevation, and-- partly'in section, of a camber-board of a Jacquard loom having cord securing means associated therewith embodying the main features of. the

present invention;

Fig. 2 is a transverse section thereof taken on the line 2-2-of Fig. I;

Fig. 3 is a fragmentary sectional view illustrating' certain of the parts of the device of the present. invention in position for partially locking the harness cords.

Fig. 4 is asimilar View with the parts in positionfor locking the' harness cords more fully;

Fig. 5' is an underneath plan view of a portion of the mechanismshown in Fig. 1; and

Fig. 6 is a transverse section taken onthe line 66 of Fig. 1.

Itshould, of course, be understood that the description anddrawings herein are illustrative merely, and that various. modifieations and changes-may be made in the structure disclosed without departing. from the spirit of the invention.

Referring'to' the drawings, in the particular embodimentof the inventiontherein shown, I0 is acomber-b'oard',.of any preferred, style, such as are commonly used in Jacquard looms, the same being provided with a plurality, of vertically extending holes-H, through which pass the harness cords 12: from thelower. ends of which the pattern forming heddles. l3 are suspended.

The heddles -l3 may be of the ordinaryv types commonly used in Jacquard looms, and each heddle ofcourse has a lingo (not. shown) secured to the lower end; thereof,- and is: provided with the usual warp eye (not shown) intermediate its ends:

on each side of the comber-board Hlthere is mounted :asideplate member M. The side plate members M" are each provided with a series of cam slots l5- for a purpose to be presently explained; The cam slots 1-5 each have a screw l6 extending therethrough which is mounted in the comber-board.

The-lower edge portionof each side plate comber-board Ill. The harness cords l2 extend through the holes l9 inthe plate member I8.

The side plate members. HI are also provided,

'on the inner faces thereof, with channel mem- :bers'. 20 which serve to" support another plate member 21 disposed between the lower plate member l8-= and the lower face of the comberboard l0; This'plate member H is also provided with a" series-of holes 22 which, during'the nor- 3 mal operation of the loom, register with the holes ll of the comber-board l and through which the harness cords I2 also extend.

Locking members, such as pins 23 extend through the comber-board l0, and through each of the plate members l8 and 2|, and these pins 23 serve to prevent shifting of the plate members Hi and 2| with respect to the comber-board I0 during the normal operation of the loom.

The intermediate plate member 2| is provided, at one end thereof, with bracket 24 to which one end of a link 25 is pivotally connected. The

other end of link 25 is pivotally connected to onev end of a, threaded bolt member 21 which is slidably mounted in a bracket 28. The bracket 28 is ordinarily held in a fixed longitudinal position,

but is adapted to be freed for longitudinal movement, in a manner and for a purpose to be presently explained. Upon the outer end of the bolt member 21 a nut 29 is threaded.

The bracket member 28, in which the bolt member 21 is slidably mounted, has a base portion 48 which is slidably mounted in a plate member 30 which is secured to the under face of the comber-board l0, and said bracket member 23 is normally held against longitudinal movement by means of a latch or dog 3|, which is pivoted, by means of a screw 32, on the under face of the comber-board I0, in such position as normally to obstruct the movement of the base portion 48 of the bracket member 28 which is slidably mounted in the plate member 30 as aforesaid. The latch or dog 3| is provided with a link 33 pivoted thereto and extending toone side of the comber-board. The link33 is provided with a handle 34 for the operation ofthe latch or dog 3|. A stop pin 35 serves to locate the latch or dog 3| in the locking position.

The operation of the device as above described may now be explained.

Whenever the loom is to stand idle for a period of .time during which atmospheric changes,

are likely to occur, or whenever a new set of warp is to be entered through the heddle eyes, the locking pins 23 are first removed, after which the nut 29 is advanced on the bolt 21 causing the intermediate plate member 2| to be moved side wise in the loom. When theplatemember 2| is thus moved sidewise by the manipulation of the nut 29 on the bolt 21, the lower plate member I8 will be carried along with the same by reason of the combined tension of the harness cords. This action will continue, until the harness cords are brought to the condition shown in Fig. 3 of the drawings, putting a distinct bend or offset in'each of the harness cords which will serve to bind said harness cords against rotation below the' comber-board, and this notwithstanding any twisting moment which may be applied thereto by reason of changes in the moisture content of the atmosphere. V i

However, in some instances, it will be found that a single shift of but one of theplate mem bers, with respect to the comber-board, may not sufiiciently uniform facing direction. This will 4 not only serve to prevent winding of the warp ends around the heddles, but will also greatly facilitate the entering of the warp whenever it becomes necessary to substitute a new warp for one which has run out.

When it is desired to put the loom into operation, the nut 29 is again manipulated, in a reverse direction, to permitthe plate members to be returned by the tension of the harness cords to the proper operating positions, that is, with the holes in both plate members in register with the holes in the comber-board. After the plate members l8 and 2| have been returned to their proper positions for the normal operation of the sired shifting with respect to the comber-board while the loom is operating.

However, should the loom be inadvertently started when the plate members |8 and 2|, or either of them, are shifted with respect to the comber board, said plate members I8 and 2| may be quickly released by pulling on the handle 34 which, through the link 33, will cause the dog or latch 3| to'be shifted angula'rly to release the base portion 48 of the bracket member 28, against which the nut 29 abuts, and which is then free to be longitudinally slidable in the plate member 30. The plate members l8 and 2| will then be returned to the normal or unlocked position by the tension of the harness cords.

Iclaim:

1. In Jacquard loom harness including a plu' rality of heddles, and harness cords at the lower ends of which the said heddles are carried, a camber-board having a plurality of holes through which the harness cords pass, and means for preventing twisting of the harness cords when the loom is standing idle comprising adevice adjacent the comber board through which the harness cords extend, said device being shiftable to offset and thus bind the harnesscords.

2. In Jacquard loom harness including a plurality of heddles, and harness cords at the lower ends ofwhich the said heddles are carried, a comber-board having a plurality of holes through which the harness cords pass, a plate member disposed adjacent the comber-board having a plurality of holes through which the harness cords, also pass, which holes register with the holes of the comber-board during the normal operation of the loom, means for shifting said plate member thereby to offset and'thus bind the harness cords adjacent the comber-board and thereby prevent twisting of said harness cords.

3. In Jacquard loom harness includin a plurality of heddles, and harness cords at the lower ends of which the said heddles are carried, a

- comber-board having a plurality of holes through which the harness cords pass, a plate member harness cords adjacent the camber-board and thereby prevent twisting of said harness cords,

and means for locking the plate member against shifting during the normal operation of the'loom.

4. In Jacquard loom harness including a plurality of heddles, and harness cords at the lower ends of which the said heddles are carried, a. omber-board having a plurality of holesthrough which the harness cords pass, a plate member disposed adjacent the comber-board having a plurality of holes through which the harness cords also pass, which holes register with the holes of the comber-board during the normal.

operation of the loom, means for shifting said plate member thereby to ofiset and thus bind the harness cords adjacent the camber-board and thereby prevent twisting of said harness cords, and means for quickly releasing the means for shifting the plate member.

5. In Jacquard loom harness including a plurality of heddles, and harness cords at the lower ends of which the said heddles are carried, a comber-board having a plurality of holes through which the harness cords pass, a pair of plate members disposed adjacent the comber-board each having a plurality of holes through which the harness cords pass, which holes register with the holes of the comber-board during the normal operation of the loom, and means for shifting at least one of said plate members thereby to ofiset and thus bind the harness cords adjacent the comber-board and thereby prevent twisting of said harness cords.

6. In Jacquard loom harness including a plu rality of heddles, and harness cords at the lower ends of which the said heddles are carried, a

comber-board having a plurality of holes through which the harness cords pass, a pair of plate members disposed adjacent the comber-board each having a, plurality of holes through which the harness. cords also pass, which holes register with the holes of the comber-board during the normal operation of the loom, means for shifting at least one of said plate members thereby to offset and thus bind the harness cords adjacent the camber-board and thereby prevent twisting of said harness cords, and means forlocking the plate members against shifting during the normal operation of the loom.

7. In Jacquard loom harness including a plurality of heddles, and harness cords at the lower ends of which the said heddles are carried, a comber-board having a plurality of holes through which the harness cords pass, a pair of plate members disposed adjacent the comber-board each having a plurality of holes through which the harness cords also pass, which holes register with the holes of the comber-board during the normal operation of the loom, means for shifting at least oneof said plate members thereby to 01T- set and thus bind the harness cords adjacent the comber-board' and thereby prevent twisting of said-harness cords, and means for locking the plate members against shifting during the normal operation of the loom comprising removable bolt members passingthrough the camber-board and through said plate members,

shifting at least one of said plate members thereby to ofiset and thus bind the harness cords adjacent the comber-board and thereby preventtwisting of said harness cords, and means for quickly releasing the means for shifting the plate members. a

9. In Jacquard loom harness including a plurality of heddles, and harness cords at the lower ends of which the said heddles are carried, a comber-board having a plurality of holes through which the harness cords pass, a pair of plate members disposed adjacent the comber-board each having a plurality of holes through which the harness cords also pass, which holes register with the holes of the somber-board during the normal operation of the loom, means for shifting said plate members each to a different extent, 7 thereby to offset and thus bind the harness cords adjacent the comber-board and thereby prevent twisting of said harness cords.

10. In Jacquard loom harness including a plurality of heddles, and harness cords at the lower ends of which the said heddles are carried, a comber-board having a plurality of holes through which the harness cords pass, a pair of plate mem- 'bers disposed adjacent the comber-board each having a plurality of holes through which the harness cords also pass, which holes register with the holes of the comber-board during'the normal operation of the loom, means for shifting said plate members, each to a different extent, thereby to offset and thus bind the harness cords adjacent the comber-board and thereby prevent twisting of said harness cords, and means for locking the plate members against shifting during the normal operation of the loom.

THOMAS J. SEEL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 727,521 Whittall May 5, 1903 2,023,016 Hall Dec. 3, 1935 2,078,091 7 Matthews Apr. 20, 1937 2,524,876 Berg Oct. 10, 1950

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