US3189056A

US3189056A - Textile reed

Info

Publication number: US3189056A
Application number: US145931A
Authority: US
Inventors: Robert F Parks
Original assignee: Steel Heddle Manufacturing Co
Current assignee: Steel Heddle Manufacturing Co
Priority date: 1961-10-18
Filing date: 1961-10-18
Publication date: 1965-06-15
Anticipated expiration: 1982-06-15

Description

June 15, 1965 R. F. PARKS 3,189,056

TEXTILE REED Filed Oct. 18. 1961 A B 2| ,JIg..0

a INVENTOR.

ROBERT F. PAR KS wgfz ATTORNEY 3,189,056 Patented June 15, 1965 3,189,056 TEXTILE REED Robert F. Parks, Greenville, S.C., assignor to Steel Heddle Manufacturing Company, Paris, S.C., a corporation of Pennsylvania Filed Oct. 18, 1961, Ser. No. 145,931 1 Claim. (Cl. 139-192) This invention relates to textile reeds and more specially to a simplified construction and method providing a light reed having an increased free is easily made.

In connection with former all metal reed constructions, the spacing of the dent wires and maintenance of such spacing has been a most significant problem. Generally, this problem was dealt with by the placing of a coiled spring adjacent the top and bottom of the reed spaced inwardly of the frame. Due to the intense vibration to which the reed is subjected during weaving, the metal of the spring often rubs against the metal of the dent wires. Because of the restraint placed upon the dent wires by such springs or other means, the dent wires had less freedom of movement to accommodate slubs and other enlargements in the yarn passing therebetween. Increase in length of dent wire which weight is a further disadvantage resulting from such use of springs and solder and the like.

Accordingly, it is an important object of this invention to provide a simplified lighter all metal reed construction providing a greater free depth of dent wire.

Another important object of this invention is to provide a simplified reed construction and method for making same eliminating the necessity of using springs for the maintenance of dent wire spacing.

Another object of the invention is to provide a reed construction wherein there is a minimum of abrasion between metal surfaces thus insuring a longer life for the reed.

Still another object of the invention is the provision of a reed construction providing an improved bond between reed wires and the frame with a more uniform spacing of dent wires.

Yet another object of the invention is to provide an improved reed construction and method resulting in a lighter more inexpensive reed having the above advantages.

Another object of the invention is to save bonding material and avoid masking portions of the reed toprevent contact by the bonding material.

The construction designed to carry out the invention will be hereinafter described, together with other features thereof.

The invention will be morg readily understood from a reading of the following specification and by reference to the accompanying drawing forming a part thereof, where-' in an example of the invention is shown and wherein:

FIGURE 1 is a side elevation illustrating the method for constructing a reed in accordance with the present invention,

FIGURE 2 is an enlarged perspective view illustrating in greater detail the right-hand portion of FIGURE 1,

FIGURE 3 is a front elevation, at a reduced scale, illustrating a reed constructed in accordance with the present invention, and

FIGURE 4 is an enlarged transverse oh the line 4-4 in FIGURE 3.

Referring more particularly to the drawing, it will be noted that the reed construction illustrated includes a plurality of spaced parallel aligned dent wires A confined by a pair of spaced transverse flat parallel bars B adjacent each end thereof. It will be noted that a space C is defined above and below the upper and lower ends, respectively, of the parallel dent Wires by the parallel bars B so that compressive force is not applied directly to the dent sectional view taken wires by the reed cap when installed on the loom. Rigid non-lbrittle thermosetting plastic adhesive beads D between adjacent dent wires and the adjacent fiat parallel bar position the dent wires. Side frame members E are provided bridging the parallel bars adjacent each end thereof at right angles thereto. It will be noted that the dent wires A are first spaced by coiled springs S inwardly of and adjacent the flat bars B. The beads D are formed by placing a non-brittle thermosetting plastic adhesive in strips beneath the bars B and applying suflicient heat and 1 pressure to the parallel bars to cause the plastic to flow between the dent wires. Thus, each dent wire is spaced without the necessity of using springs to maintain dent wire spacing so as to provide a lighter reed having a greater free depth of reed. The spring S is removed when the adhesive is set since the thermosetting plastic is the only means necessary to position the dent wires within the frame.

Referring more specifically to FIGURE 1, a support 10 carries a pair of spaced clamp bases 11. The clamps include handles 12 each having a fixed arm 13 carried thereby. The handles and arms are pivoted as at 14' to the clamp base 11. The free end of each arm has an internally threaded collar 13a which carries a clamp extension 14. The clamp extension is mounted upon a threaded element 15 carried by the collar 13a and threaded within the block 1412. A head 16 adjusts the position of the clamp extensions 14 with respect to the arms 13. The clamp extension 14 is engaged by a heater element 17 which has power terminals 18 connected to a suitable source of electrical energy. A base 19 provides a surface complementary to the clamp extension also engaged by the heater element 17.

The thermosetting plastic strips 20 (FIGURE 2) which form the beads D may be in the form of Scotch-Weld Brand Bonding Film AF-lO sold by the Minnesota Mining and Manufacturing Company of Minneapolis, Minn. This film is a high strength thermosetting plastic adhesive in the form of an unsupported flexible film. The film is protected by a liner and is from 9 to 11 mils thick and has a yellow color (light brown when cured).

A spring S is positioned adjacent each edge of the reed inwardly of the flat bars B to space the reed dents A. Sufficient heat and pressure are provided by the clamping elements previously described to cause the plastic to flow between the dent wires to form beads securing the dent Wires to the bars. The dent wires being supported solely by the beads D are otherwise unrestrained.

The space C is provided so that no stress will be placed upon the dent wires when the reed is positioned between the lay and the reed cap which bears upon the parallel bars which form the top and bottom frame for the reed. Side frame members E are secured to the parallel bars B by suitable means such as rivets 21 so as to bridge same and carry the compressive stress exerted by the reed cap.

Reeds constructed as described above have been found to exhibit the unexpected characteristic of plastic memory. Such reeds may be deformed within limits by passing an object larger than the dent spaces between the dents. After waiting several minutes, the reed will have healed itself. It is thought that this characteristic results from the tendency of a plastic once having been set to return to its former position upon a temporary deformation.

While a preferred embodiment of the invention has been described using specific terms, such description is for illustrative purposes only, and it is to be understood that changes and variations may be made without departing from the spirit or scope of the following claim.

What is claimed is:

A textile reed construction including, a plurality of spaced parallel aligned dent wires, apair of spaced transverse parallel bars confining the dent wires therebetween adjacent each end of the dent wires forming top and bottom framing for the reed, side frame members bridging the parallel bars adjacent each end thereof at right angles thereto, each pair of parallel bars extending above the top and below the bottom ends of said dent wires defining a space above and below the top and bottom ends of said spaced parallel dent Wires respectively, and a rigid nonbrittle thermosetting plastic adhesive forming a bead between adjacent dent Wires and the adjacent parallel bar, said dent wires being unrestrained other than that resulting from the bead and top and bottom bars, whereby each dent wire is spaced without the use of springs, solder and the like for maintenance of dent wire spacing thus providing a lighter reed having a greater free depth of dent wires.

References Cited by the Examiner UNITED STATES PATENTS 534,229 2/95 Reixach et al 29-467 4 2,231,529 2/41 Dey 156300 2,545,704 3/51 Raffel 156300 2,860,381 11/58 Spisak 156297 X 2,862,235 12/58 Spisak 156297 X 2,869,587 1/59 Schmidt 139192 2,989,088 6/61 Schmidt 139192 3,026,235 3/62 Lindner 156583 X FOREIGN PATENTS 1,146,831 5/57 France.

595,719 12/ 47 Great Britain.

DONALD W. PARKER, Primary Examiner.

RUSSELL C. MADER, Examiner.