US748713A - Heddle - Google Patents

Description

No. 748,713. ATENTED JAN. 5, 1904.

W. FEHR.

HEDDLE.

APPLICATION FILED SEPT. 18, 1903. N0 MODEL.

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atented YI-'anuaryv 5, 1904.

PATENT tancia.,v

HEDDLE.

SPECIFICATION; forming part of Letters Patent No. 748,713, datedJanuaI-y 5, 1904.

Application filed September 18, 1903.l Serial No. 173,655. (No model.)

To all 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 Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Heddles, 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.

In heddles of the present type the band or strip of metal is provided at either end with A a slot or mortise to permit the heddles to slide back and forth Von the cross-rods of the heddle-frame, and it is also provided centrally with a slot or eye, through which the warp-thread is passed when the heddle and its frame are inoperative position in the loom` The formation of the end and central slots in thin, fiat, and narrow strips of metal-steel, for instance-renders the heddle weak and liable to break at these points. Many ways of forming these slots have been devised; out the disadvantage of weakness has not heretofore been successfully avoided. l The principal object of my present invention is to provide a heddle consisting of a thin at narrow strip of metal having end mortises and a central eye formedby slitting the strip at these points and then expanding the metal by a swaging or similar operation to form an opening in the swagedA portion of the metal, the bearing surface or surfaces of the opening being thereby protected or reinforced by a fin or ns formed by the swaging down of the metal adjacent to said bearingsurface.

The nature and scope of my present invention will be more fully understood from the following description, taken ,in connection Withthe accompanying drawings, forming part hereof, in which Figure l is a front elevational view of a heddle embodying main features of my invention; Fig. 2 is'an enlarged front elevational view of the upper slot or mortise of the heddle. Fig. l3 is a vertical sectional view of Fig. 2. Fig. 4 is an' enlarged front elevational view of the intermediate slot or eye of the heddle; and Fig. 5 is a View corresponding to Fig. 2, but illustrating a modified form of end slot or Inortise for the heddle.

Referring to the drawings, a represents a thin flat strip or narrow band of metal, proferably steel, and having at either extremity a mortise or slot b and intermediate of the extremities the slot or eye d of the heddle. In the form of4 end mortise b (illustrated in Figs. 1 to 3, inclusive) the opening or slot constituting the mortise is formed in the following preferred manner: The band a is first slit, as indicated in dotted lines at a in Fig.

2, and thereafter the metal surrounding the slit a is subjected tol a swaging or similar operation to flatten the metal and to expand the slit a into the slot or opening o, constituting the mortise. When so formed, the mortise b has an upper and a lower bearingsurface b', formed of a thin fin of swaged metal, which reinforces the ends of the Inortise h and prevents breakage of the heddle at the mortised extremities.

In Fig. 5 a modified form 'of end-mortise bw is illustrated, in which the reinforcing-fin b11 is formed only adjacent to the upper bearing-surface of the mortise during the swaging or similar operation.

The intermediate eye d 0f the heddle is vpreferably formed by slitting the metal o', at

the point where the eye is to be formed and in thereafter subjecting the metal surrounding the slit to a swaging or similar operation to flatten the metal and expand the slit into a substantially rectangular openingor eye d, the perimeter of which is surrounded by an elliptical frame d, of swaged metal, forming a reinforcing-lin for all bearing-surfaces of the eye-opening.

It should be understood that instead of 'first forming the slits for the end mortises or intermediate eye in the metal and thereafter swaging the metal surrounding the slits to form the slots or eye the metal may first be expanded by the swaging or similar operation and thereafter the slots and eye out into the swaged portions of the band without departing from the spirit of my .present-invenlDlOn; I

Having thus described the nature and ob- IOO jects of my invention, what I claim as new, ends an eye surrounded by a thin iin of Io and desire to secure by Letters Patent, is swaged metal.

1. A heddie, consisting of a thin, fiat nar- In testimony whereof I have hereunto set row strip of metal provided at either eXtremmy signature in the presence of two subscrib- 5 ity with a mortise or slot having a bearinging witnesses.

surface reinforced by a thin iin of swaged WILLIAM FEHR. metal. Witnesses 2. A heddle, consisting of a thin, flat nar- 1 J. WALTER DOUGLASS,

row strip of metal having intermediate of its THOMAS M. SMITH.

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