US2901004A

US2901004A - Reeds for looms

Info

Publication number: US2901004A
Application number: US632886A
Authority: US
Inventors: Frank H Kaufmann
Original assignee: Steel Heddle Manufacturing Co
Current assignee: Steel Heddle Manufacturing Co
Priority date: 1957-01-07
Filing date: 1957-01-07
Publication date: 1959-08-25
Anticipated expiration: 1976-08-25

Description

Aug. 25 959 F. H. KAUFMANN I 2,901,004

REEDS FOR LOOMS Filed Jan. 7, 1957 I j, if I A? I? X 2 /7 /f INVENTOR Frvuuf fa 20 United States Patent ice REEDS FOR LOOMS Frank H. Kaufmann, Huntingdon Valley, Pa., assignor to Steel Heddle Manufacturing Company, Philadelphia, Pa., a corporation of Pennsylvania Application January 7, 1957, Serial No. 632,886

3 Claims. (Cl. 139-192) This invention relates to reeds for looms, and more particularly to reeds of the so-called pitch band type, in which the reed dents are made of thin flat strips of metal, the upper and lower ends of which are bound between strips of wood, usually of approximately semicircular cross-section, which strips are bound to each other, and the spacing of the dents is secured and maintained by the winding of a pitch impregnated cord or twine passing between the successive dents and over the outside surfaces of the wooden strips. The upper and lower end portions are also usually encased within protecting shells of paper, cloth, or the like.

However, reeds constructed as aforesaid may be easily damaged, and when once bent or deformed, the same cannot thereafter be used in a loom for the best work.

The principal object of the present invention is to provide a pitch band reed which will be more durable and rigid in its construction than those previously available, whereby the same will have a much greater longevity, and this without material increase in the cost of making the same.

It has heretofore been suggested to provide grooves in the outer portions of the wooden strips in which longitudinally extending metallic strips were embedded for the purpose of strengthening the reed, but this has not proved to be very effective.

The present invention contemplates the use of grooved binding strips, and in conjunction therewith strengthening elements of a novel character, which will be quite effective for the purpose of imparting considerably more rigidity to the reed than has heretofore been obtained.

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

Figure 1 is a perspective View, portions being broken away for the purpose of illustration, of a reed embodying the main features of the present invention;

Fig. 2 is an enlarged cross-sectional view of the upper portion of such a reed;

Fig. 3 is a similar view, but illustrating a modified form of the invention; and

Fig. 4 is a side elevation of a portion of a reinforcing member of the kind which is shown more particularly in Fig. 3 of the drawing.

It should, of course, be understood that the description and drawing herein are illustrative merely and that various modifications and changes may be made in the structure disclosed without departing from the spirit of the invention.

Referring to the drawing, in the particular embodiments of the invention therein shown, the reed of the present invention comprises a plurality of suitably spaced dents 10, each preferably made of a thin flat strip of metal. The upper and lower ends of the dents extend between the flat inside faces of longitudinally extending wooden strips 11 of substantially semi-circular cross-section. Each of the wooden strips 11 is provided 2,901,004 Patented Aug. 25, 1959 with a longitudinally extending groove 12 in its outer portion.

Each of the wooden strips is encased on its outer surface with a complementally shaped reinforcing shell 13 formed of sheet metal. The shaping of said reinforcing shell 13 is such that a portion 14 of the same extends into the groove 12 in the wooden strip 11 which said shell encases.

The pitch impregnated cord or twine 15 which is used for the purpose of spacing and securing the upper ends of the dents, and for binding the wooden strips of each pair to each other, is wrapped on the outside of the reinforcing shell 13 and passes through the dent spaces in the usual manner.

Preferably, the upper and lower bound portions of the reed may be encased in a suitable envelope 16 of paper or textile material, although this is not essential for the functioning of the reed, and said envelope is usually only employed for the purpose of covering the pitch impregnated twine or cord above referred to, so that the same will not foul the cloth while the same is being woven.

If desired, the reinforcing shell 13 may be punctured at suitable longitudinally spaced locations thereby to provide prongs 17, which may be driven into the wooden strips 11, for the purpose of further stiffening the structure, or any other suitable fastening means of this general character may be employed for this purpose.

By the foregoing arrangement there is provided a reed which has been found in actual practice to be much more rigid and durable than the pitch band reeds heretofore available. Reeds made in accordance with this invention have been found in practice to have a much greater longevity than the pitch band reeds of the ordinary kind.

I claim:

1. A reed for looms comprising a plurality of suitably spaced dents made of thin flat strips of metal secured at their upper and lower ends between the flat inside faces of a pair of longitudinally extending wooden strips each of substantially semi-circular cross-section, said wooden strips having longitudinally extending grooves in their outside portions, and each of said wooden strips being encased on its outer surface with a complementally shaped reinforcing shell of sheet metal, said reinforcing shells each having a portion extending into the groove of the wooden strip with which it is associated, and each pair of said wooden strips having a cord wrapped on the outside of the reinforcing shells thereof and passing through the spaces between the dents.

2. A reed for looms comprising a plurality of suitably spaced dents made of thin fiat strips of metal secured at their upper and lower ends between the inside faces of a pair of longitudinally extending wooden strips, said wooden strips each being encased on its outer surface with a complementally shaped metallic reinforcing shell, each pair of said wooden strips having a cord wrapped on the outside of the reinforcing shells thereof and passing through the spaces between the dents, and the reinforcing shells having longitudinally spaced. prongs struck from the metal thereof and extending into the wooden strips.

3. A reed for looms comprising a plurality of suitably spaced dents made of thin flat strips of metal secured at their upper and lower ends between the inside faces of a pair of longitudinally extending wooden strips, said Wooden strips having longitudinally extending grooves in their outside portions, and each of said wooden strips being encased on its outer surface with a complementally shaped metallic reinforcing shell, said enforcing shells each having a portion extending into the groove of the wooden strip with which it is associated, each pair of said wooden strips having a cord Wrapped on the outside of the reinforcing shells thereof and passing through the spaces between the dents, and the reinforcing shells having longitudinally spaced prongs struck from the metal thereof and extendingninto the wooden strips.

References Cited in the file of this patent UNITED STATES PATENTS 954,512 Gourdeau Apr. 12, 1910 2,180,201 Fish Nov. 14, 1939 FOREIGN PATENTS 424,213 Great Britain. Feb. 18, 1935 OTHER REFERENCES- Textile World, May 1951, page 157. relied on,