US687215A - Method of making heddles. - Google Patents

Description

No. 687,2l5. A Patented Nov. 26, |9ol.

w. FEHR.

METHOD 0F MAKING HEDDLES.

(Application led. July 18, 1901.)

THE Nouns FEYERS C0.. Pun'ro'uruo.. wAsmNuroN. D. c.

- x or slots in its extremities.

UNITED STATES- PATENT OFFCE.

WILLIAM FEHR, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO STEEL HEDDLE MANUFACTURING COMPANY, OF PHILADELPHIA, PENNSYL- VANIA, A CORPORATION OF PENNSYLVANIA.

METHOD oF MAKING HsonLi-zs.

SPECIFICATION forming part of Letters Patent No. 687,215, dated November 26, 191. i

Application iiled July 18, 1901.

To @ZZ whom t may concern:

Be it known that I, WILLIAM FEHR, a citizen of the United States, residing at the city of Philadelphia, in the county of yPhiladel- 5 phia and State of Pennsylvania,have invented certain new and useful Improvements in Heddles and in the Methods of Producing the Same, of which the following is a specification.

My invention has relation to a heddle formed of thin flat metal, preferably steel; and in such connection it relates to the arrangement and construction of the heddle,`as well as to the method of forming the mortises In heddles of the present type the band or strip of metal is provided with a slot or mortise at either end to permit the heddles to slide back and forth on the heddle cross-rods of the heddle- 2o frame. The formation of such a slot or mortise in thin, flat, and narrow strips of metalsteel, for instance-renders the heddle weak and liable to break at these points. Many ways of forming the slot have been devised; but the disadvantage. of weakness has not been successfully avoided.

' The main or principal objects of my invention are, first, to provide in heddles at either extremitya slotted portion which is relatively 3o stronger than the unslotted portions of the heddle and joins the unslotted portions by rounded or arch-like connections well adapted to reinforce or strengthen the slotted portion of the heddle, and, second, to provide a method of forming the slotted ends of heddles by first punching or otherwise slitting the ends and in then expanding only that portion of the slitted ends intermediate of the terminals of the slitin a plane parallel 4o with the flat surfaces of the strip.

The nature and scope of my invention will be more fully understood from the following description, taken in connection with the accompanying drawings, forming part hereof,

Figure l is a front elevational view of a heddle embodying main features of my'invention. Fig. 2 is a side or edge view of said heddle. Fig. 3 is an enlarged face View of Serial No. 68,709. (No model.)

one of the slotted ends of the heddle; and

Fig. 4. is an enlarged face view of the end of Referring to the drawings, a. represents the body of the heddle, which is formed of a thin, flat, and narrow strip or band of metal, preferably steel. This body ct has formed intermediate of its ends an eye a and at either end is provided with a slot or mortise b, formed in the following manner: The strip a. is first punched or slitted, as at b', Fig. 4., by any suitable means. The end thus slit is then supported by clamping means (not shown) which extend inward from the terminals of the slit b .to points indicated in dotted lines as at b2. The thin edges or wallsof the slit b are next expanded between points b2 b2 to form the mortise or slot. This expansion is in a plane parallel with the faces of the heddle, and the walls b3 thus formed extend beyond but parallel with the edges of the strip a, which theyjoin in curved or arched portions b4 at points b2 @intermediate of the terminals ofthe slit b', which terminals are unexpanded. The slot-ted portions of the ends of the heddles thus formed are strongand not liable to snap or break, because at the points b4, where the thin walls `of the slot join the strip, the walls are arched and join a relatively thin or elasticportion b2 of the `end of the heddle adjacent to the terminals of slit b'. In other words, the slot b, while it is centrally rectangular in shape, yet its ends converge into slits b, which enter the unexpanded metal ct. After the mortise or slot b has been formed, as described, the slotted ends of the heddle may be bent in a plane transversely or at right angles to its facesinto boxlike enlargements b5, asv clearly illustrated in Fig. 2, and this transverse bending may be readily performed without breaking the slotted ends 0E from the body a of the heddle proper.

Having thus described the nature and ,objects of my invention, what I claim as new, and desire to secure by Letters Patent, is

l. The method of producing heddles,whicl1 consists in forming at either end of'a flat,

tel-mediate of the terminals of said slits, said expansion being in a plane parallel With the faces of the heddle-strip.

In testimony whereof I have hereunto set 15 my signature in the presence of two subscribing Witnesses.

WILLIAM FEHR.

Witnesses:

J. WALTEnDoUGLAss, THOMAS M. SMITH.

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