US1070206A - Reed. - Google Patents

Description

E. M. TERRYBERRY.

REED.

APPLICATION FILED APR. 4, 1912. 1,070,206. Patented Aug. 12,1913.

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EDWARD 1VL TERRYBERRY, OF PHILADELPHIA, PENNSYLVANIA.

REED.

of alternate dents to each side of such central portion offset with respect to each other and arranged in staggered relation, all as more fully hereinafter set forth and as claimed.

The reed of the present invention is particularly adapted for high slayed work, or for weaving fabrics of fine texture. In the weaving of such fabrics the warp threads passing through the reed as it vibrates are subjected to an excessive amount of friction, with the result that the threads tend to fray or lint up in small knots, and sometimes break. In the old straight dent reed where the dents are arranged parallel to each other, this friction is a source of continual trouble. Attempts have been made to overcome this difliculty by the use of reeds made up of straight dents crossing near their center, and also by the use of alternate dents specially machined to present a central even line for beating the fabric; but such reeds are expensive to manufacture, and require a special form of reed frame; also with the central beating line, any misadjustment of the fabric, relative to this cen tral line, result-s in an imperfect assimila- C- cording to the present invention, these disadvantages are obviated and a reed pro-. duced simple in construction and inexpensive of manufacture.

In the accompanying drawings, Figure 1 shows a front view of the preferred embodiment of the invention; Fig. 2 is an end view of Fig. 1; Fig. 3 shows the individual dents of which the reed of Figs. 1 and 2 is alternately made up; Fig. 4 shows a modified form of ofiset dent, both separately and as combined with a straight dent; Fig. 5 shows still another modified form of the Specification of Letters Patent.

Application filed April 4, 1912.

Patented Aug. 12,1913.

Serial No. 688,393.

offset dent; Fig. 6 shows the individual dents of Fig. 5; Fig. 7 shows a modification in the construction of the individual offset dents; Figs. 8 and 9 show still further em bodiments of the invention; Fig. 10 is a section on an enlarged scale taken on the line 1010, Fig. 2; and Fig. 11, a section on an enlarged scale taken on the line 1111, Fig. 8.

The reed of the present invention is made up of dents of uniform width, and is shown in Figs. 1 to 3 and 10, as made up alternately of straight dents 4, and offset dents 3, these dents being of uniform width and their ends being fastened in the reed frames 1 and 2 in any suitable manner. Since the dents are of uniform width, their ends can be brought together the same as in the old straight dent reed, and hence the present reed can be substituted for the old straight dent reed, without modifying the structure of the loom in which the substitution is made. The dents 3 are provided with central portions, 5, in the same plane as the ends of the dents and as the straight dents 4, and between the central portions 5 and the ends, the dents are offset slightly more than the width of the individual dents. In the form shown in Figs. 1 to 3 the central portions 5 extend about one quarter of the length of the reed, and are arranged so that the offset portion below this central portion is also about one quarter of the length of the reed, and the offset portion above this central portion about one half of said length. The position of this central portion as well as the length can be varied as desired. In Fig. 4 it is shown as situated approximately in the center of the reed, the structure of the alternate dents 4 and 6 of Fig. 4, being otherwise similar to those of Figs. 1 to 3.

Fig. 5 shows a modification in which the alternate dents 7 and 9 of uniform width are arranged with single offset portions 8 and 10 which give a. central portion 5 in the same plane, and an offset arrangement to each side of said central portion similar in effect to that of Figs. 1 to 4. These dents 7 and 9 may or may not be duplicates of each other. In the Fig. 6 they are, however, shown as duplicates, the ends of the dents being merely reversed in making up the reed. Obviously the width of the central portion 5 can be varied in this modification the same as with the other forms of the invention already described.

Fig. 7 shows a modification in which the bends or offsets 12 are rounded more than in the preceding figures. This feature can be controlled as desired.

In Fig. 8 the offset portions 13 of the dents are offset less than the width of the individual dents. The clearance provided in this case is less than in the other embodiments shown, but in this embodiment also the friction is less than in the old straight dent reed, for the arp threads do not come in contact with the edges of the dents at the same time, but. in succession, thus minimizing the usual shearing action of the straigl'it dent reeds. A section of the reed thus constructed is shown on an enlarged scale in Fig. 11.

In Fig. 9 the reed is made up alternately of dents 14 having narrow central offset portions 16, and dents having wider central offset portions 15, the combined effect being similar to that already described.

The wide range of adaptability of the present invention is obvious to those skilled in the art from the foregoing description, the location and width of the central even portions being controlled as desired.

In the embodiments of the invention shown in Figs. 1 to 6 and 9 to 10, the offset portions of the dent are offset more than the width of the dents, and can be offset more or less as desired, the effective clearance being determined by the amount of this ofl:'

set. The friction of the warp threads while )assing through these offset portions of the reed is correspondingly reduced, and tend eney toward fraying, excessive rubbing,

' and breaking minimized. AS a result, softer warp yarns can be used, and yarns with less sizing than heretofore necessary. Also a closer slayed fabric can be produced.

The provision of a central portion of ap preciable and variablewidth is a marked improvement over known reeds having offset dents provided with a central line for packing-the filling. The reed does not have to be so carefully adjusted in the loom with respect to the fabric, but uniform driving of the filling is nevertheless assured the same as in the old straight dent reeds.

The straight dents used in the reed of the present invention may be the old st 'aight dents of the same width as used in the straight dent reeds. The offset dents can be made from wire or strips of the same width, the offset portions being offset at the desired places and for the desired amount.

Variations and modifications can be made in the invention above described without departing from the spirit and scope of the invention as set forth in the following claims.

I claim:

1. A reed made up of an upper and a lower reed frai'ne, dents of uniform width having their end portions in said upper and lower reed frames respectively, and also hav ing central or intermediate portions in the same plane, and with the portions of altern'a te dents to each side of said central portion offset and arranged in staggered relation.

2. A reed made up of an upper and a lower reed frame, dents of uniform width having their end portions in said upper and lower reed frames respectively, and also having central or intermediate portions in the same plane, and with the portions of alternate dents to each side of said central portion offset a distance greater than the width of the dents, and arranged in staggered relation.

3. A reed made alternately of straight dents, and of offset dents with end and central portions in the same plane as the straight dents and with intermediate offset bUl'tlOl'lS.

l. In a reed a dent of uniform width hav ing central and end. portions arranged in the same plane, and intermediate offset portions offset a distance greater than the width of the dents.

In testimony whereof, I affix my signature in the presence of two subscribing witnesses.

E. M. TERRYBERRY. lVitnesses:

F. E. Bmnows, FRED Ciuus'rorn.

Gopies of this patent may be obtained for five cents each", by addressing the Commissioner of Patents.

Washington, D. C.

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