US1435615A - Loom heddle frame - Google Patents

Description

0. D. MOREALI. LOOM HEDDLE FRAME. ICATION man 1,435,615. Patented Nov. 14,1922.

Patented Nov. l4, 1922.

U it i T 2E OVILA D. IJIOREAU, OF MANVILLE, RHODE ISLAND, ASSIGNOR 0F ONE-HALF TO LOOM HEDIDLE FRAME.

Application filed March 13, 1922, Serial No. 543,277.

To all 110710122 it may concern.

Be it known that l, @VILA D; MoRnAU, a citizen. of the United States, residing at Manville, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Loom Heddle Frames, of which the following is aspecification.

This invention relates to an improved construction of heddle-frames adapted to be used in looms employed in the weaving of goods known in the trade as lenos, and gauzes and may also be used in the weaving of other open-work fabrics, and the object of this invention is to provide a heddle-frame which is somewhat similar to a reed in construction and is provided with a frame carrying both dents and needles, the length of a needle being a portion only of that of a dent and said needles are secured at one end in the frame, the free end of the needle being provided with an eye and protuberances being formed on the opposite faces of each needle intermediate the eye and the point of the needle points from the dents so that the warp threads may be readily passed down between the dent and the needle during the weavingoperation.

With these and other objects in View, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1 is a perspective view showing a portion of a heddle-frame with the needles and dents mounted alternately therein, and showing the relative arrangement of the different warp threads one being raised to be passed over the point of the needle and down on its opposite side between it and the next adjacent dent.

Figure 2 is a front view of the heddleframe showing the alternate arrangement of dents and needles also showing the protuberances on the needle adjacent its pointed end.

Figure 3 is a side elevation of a portion of a heddle-frame showing the relative positions of the dents and needles, the latter having their pointed edges as extending forward and beyond the corresponding edge of the dents.

Figure 4c is a detail perspective view of one of the needles.

Figure 5 is an enlarged sectional view of a portion of one of the needles illustratin the stock as being forced in from the side t?) provide a protuberance extending beyond the plane of the opposite side.

In practice in the weaving of lenos, other gauzes and open-work fabrics a pair of threads pass through each of the spaces be tween the dents in the heddle-frame and in each of these spaces is also mounted a needle, one thread of the pair being arranged to pass through the eye of a needle while the other thread is moved vertically and laterally by action of the loom and passed alternately from one side to the other over;the point of the needle, and then down between it and the nextdent, and it is found that unless some provision is made for preventing the point of the needle from laying up against the next adjacent dent by action of the laterally-tensioned thread that passes through its eye, it is very difficult and almost impossible in some cases to then pass the other thread over this point and down between it and the next ad acent dent, and to obviate this difiiculty I have formed protuberances 011 the opposite faces of the needle to space its point from r the dent and so permit the thread to be readily drawn down therebetween first on one side and then on the other, and the following is a detailed description of one construction of needle by which this result may be accomplished lVith reference to the drawings, 10 designates the heddle-frame member in which are mounted the usual dents 11 in closely spacedapart relation. Between these dents are mounted the needles 12 supported at their lower ends inthe lower heddle frame 10 while their upper ends are free, the needles themselves in this particular case, bein about one-half the length of the dents. i ear the free end of each of these needles is an eye Y 13 through which one of the pair of warp threads 14 passes.

During the action of the loom each pair of threads is drawn laterally alternately in opposite directions against the opposite adjacent dents whereby that thread passing through the eye of the needle serves to press its needle against the next adjacent dent, and during this time the other thread 15 is lifted by action of the harnesses, or by other means, over the point 16 of the needle and is then drawn down between the needle and plane needle at its eye, by

space between the point or that dent against which the needle is being pressed. It will, therefore, be seen that as the tension of the warp tends to draw the point of the needle against the dent, it is almost impossible for the thread 15 to be drawn down between the needle and that dent against which the same is pressed, without some provision or arrangement for spacing the needle from the dent and when the thread fails to be so positioned an imperfection is woven in the goods.

To insure the proper passing of the thread down between the needle and its dent I have formed a protuberance 17 on the dent near its point, see Figure 5, by forcing a portion of the stock of the needle out beyond the thereof forming a rounding boss or projection on either side of the needle, which projections are located intermediate the eye and the point or free end of the needle.

By this construction it will be seen that when a lateral pressure. is applied to the tension of the thread 14, that portion adjacent the eye below the protuberance is sprung inwardly thereby tipping outwardly the end on the opposite side of the protuberance, thus enlarging the free end of the needle and the dent, into which space the thread 15 is freely conducted on its way downward past the protuberance.

This opening of the mouth or spacing of the end of the needle from the dent by pressure could not be accomplished unless the fulcrum point was located above the eye, that is, it could not be accomplished by placing the fulcrum at the eye of the needle as a lateral tension in either of these latter cases would tend to close the point against the dent instead of opening or spacing the same from the dent.

Then again to further insure the passing of the thread downward on the proper side of the needle I ,have o'fl'set the needles lat erally so that their pointed edges project beyond or are positioned out of alignment with the corresponding edges of the dents as illustrated in Figure 3, by which con struction it will be seen that as the warp threads 14: and 15 are drawn at an angle to one side and then moved downwardly guided by the dent that owing to the projection of the point beyond the dent the thread is more surely guided down on the proper side of theneedle.

My improved'heddle-frame is very simple and practical in construction and by the provision of a lateral protuberance on the needle at a point between the eye and the point thereof the proper spacing is insured for the passage of the inwardly traveling warp thread.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

I claim:

1. A heddie-frame having alternate dents and flexible needles, each of said needles having an eye adjacent its pointed end, protuberances on the opposite faces of each needle raised from the plane of the stock and located intermediate its eye and the point for spacing the needle point from the dents.

2. A heddle-frame having alternate dents and flexible needles, each of said needles having an eye adjacent its point and having a portion raised from the plane of its face on opposite sides thereof and located between its eye and its pointed end for spacing the needle point from the dents, the pointed e'nds'o'f said'needles being set slightly in advance of the corresponding edges of the dents.

3. A heddle-frame having alternate dents and needles the length of said needles being a portion only of that of the dents, said needles having one end fixed in the said frame and provided with an eye near its free end and protuberances on the'op'posite faces of said needles intermediate the eye and the point for spacing the point fromthe dents.

at. A heddle-frame having alternate dents and needles the length of said needles being a portion only of that of the dents, said needles having one end fixed in the said frame and provicleclwvitli an eye near its free end and protuberances'on the opposite facesof said needles intern'iediate the eye and the point for spacing the point from the dents, and the pointed ends of said needles being set slightly in advance or out of'alignment of the corresponding edges of the dents.

In testimony whereof I afiix my signature.

O'VILA D. MOREAU.

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