US1686073A - Assighob - Google Patents

Description

Oct. 2, 1928.

- H. D. COLMAN HEDDLE FRAME Original Filed Oct. 20, 1924 Inventor; V

' Ema EL D, Cozmlz/ Patented @et. .2,

HQWARD D. COLE/IAN, O15 ROCKFORD, ILLINOIS, ASSIGHQR TQBARB JBCOLMAN (1013i- EANY, OF 3003:3031), ZLLINQIS, A CORPORATION OF EEDDLE Application filed. Detober 20, 1924, Serial No. 744.543. Renewed January 9, 1928.

This invention relates to heddle frames of the general type exemplified inthe Kaufmann Patent No. 1,168,308, dated January 18, 1916, and the Hathaway Patent lfo. l,2-l($,UOi granted November 1917. Such hedd e frames are employed in multiple hari looms. Ordinarily each frame contains a atively small number of heddles. ll l'ien use in the loom, the h ddles are very unevenlydistributed in the heddle frames.

The particular object of the'present invention is to improve heddle frames of the type above referred to so that it shall be practicable to place warp threads in the hedd es by means of automatic mechanism. Such a warp drawing machine would operate upon a plurali'ty of heddle frames, the frames bein fed past the heddle-selecting mechanism and the thread-drawing mechanism. ln order to fan cilitate the selection of individual heddles and the positioning thereof for the draw ngin operation, it is desirable to slide together into one or more compact groups all-the heddles in each heddle frame. in the feeding of the heddle frames and in the operation of selecting individual heddles and positioning them for the drawing-in operation, relative movement would have to occur between the heddle bars and the compact groups of heddles. Such compacting and relative movement of the heddles would be difficult or impossible because of the presence of the brackets or other devices commonly used to support the heddle bars intermediate their ends. To overcome this dificulty, l have provided heddle-bar supporting means which is slidable approximately the full length of the heddle frame so that the said supporting means may be slid along the heddle frame to any position required in the compacting, selecting, threading and heddle-frame feed ing operations.

In the accompanying drawings. Figure l is a fragmental side elevation of a heddle frame embodying the features of the present invention.

Fig. 2 is a section on line 22 of Fig. 1..

Fig. 3 is a perspective view illustrating the intermediate support for the heddle bars.

Figs. 4 and 5 are perspective views of alternative constructions. v

The heddle frame which has been chosen to 2 each heddle is provided at its ends with an eye or elongated opening Z) through which the heddle bar 4t extends, the heddles thus being slidable along said bars.

The means for supporting the heddle bars l: intermediate their ends comprises guide bars 5 (Fig. 3), one for each of the harness bars 1 and 2. The guide bars 5 are of approximately the same length as the bars 1 and 2. Each guide bar 5 is of T-shape in cross-section and comprises a vertical central web 6 and horizontal flanges 7. The vertical web 6 is provided with a suitable number of tangs or points 8 which may be driven into the wooden bars 1 and 2 to secure the guide bars 5 in place. The tangs or points 8 may be of various forms, three different shapes being shown in Figs. 3, 4e and 5. That shown in Fig. 5 is perhaps the preferred form; the edges of the tang are notched to form teeth 8 which engage the wood and assist to hold the guide bar in place. The tang is also provided with one or more perforations 8 Preferably the tangs are coated with shellac or other adhesive material before they are driven into the harness bar, the shellac more or less completely filling the holes 8 and the side notches and serving to bond or anchor the tangs to the wood.

Th guide bars 5 may be formed in any preferred manner, but since low cost of manufacture is important, they may be advantageously made of a piece of sheet metal folded to form webs 6 and 7 and points 8 of double thickness.

On each of the guide bars 5 is slidably mounted a bracket 9 also formed of folded sheet metal and comprising a portion 10 having an opening .11 through which the heddle bar l may extend, and a base 12 projecting from opposite sides of the portion 10 and provided with hooks l3 slidably embracing the flanges 7.

It will be seen that the heddle-bar supporting members 9 are freely slidable substantially the full length of the heddle frame and Mounted in 1 thus inter pose no obstacles to the compacting or sliding of the heddles inthe drawing-in operation.

I claim as'my invention:

1. A heddle frame comprising a Wooden main frame bar, a heddl e liar, and means for supporting the heddle bar intermediate its ends, said means comprising a guide bar of substantially the same length as the frame bar and of T-shape in crosssection said guide bar comprising a vertical central web and horizontal flanges, said web having tangs thereon which are driven nto the frame ha r to secure the guide har in place, and a member slidahly engaging the heddle har and sl i dahly mounted upon the horizontal Flanges of said guide bar.

2. A heddle frame comprising; frame ha r or Woot. and a metallic secured to said frame hari sari d guic har having a plurality of tangs which are dri ren into the wood said tangs having notched edges and perforations and adhesive material socuring said tangs to the Wood and. also contained in the notches and perforations.

3. A heddle frame comprising a main frame bar of WOOCl and a metallic guide bar of T-shapc cross-section said guide har being made of sheet metal bentto torm avertical flange and two horizontal flanges, said verti cal flange having thereon tangs which are driven into the Wooden frame bar.

t. A heddle frame comprising a main frame bar of wood and a metallic guide bar of T-shape cross-section, said guide har heing made of. sheet metal bent and folded to .iorm a vertical flange and two horizontal (hinges, said horizonta flanges being of double thickness, said vertical flange heingattached to said Wooden frame bar.

In testimony whereof, I have hereunto affixed my signature.

HOVARD D. COLMANv

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