US2140061A - Heddle bar post - Google Patents

Description

,1938. P. SPENCER ET AL 2,140,061

- HEDDLE BAR POST Filed April 27, 1938 Patented Dec. 13, 1938 UNITED STATES PATENT OFFICE HEDDLE BAR POST Application April 27, 1938, Serial No; 204,643

7 Claims.

This invention relates to loom harness frames and particularly to harness frames in which steel heddles are mounted. It is customary to provide steel rods or heddle bars to support the steel heddles in such frames, and it is customary to secure the ends of these heddle bars in the side pieces of the harness frames. In Wide frames, however, it is also-desirable to attach the heddle bars to the top and bottom members of the harness frame at one or more intermediate points, and for this purpose heddle bar posts have been provided.

It is the general object of our invention to 1mprove the construction of such heddle bar posts as heretofore used, and to provide a new type of post which is economical to manufacture and which is convenient and reliable when in use, and relative to which a heddle bar may be conveniently attachedor removed.

Our inventionfurther relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawing, in which Fig. 1 is a front elevation of .a portion of a harness frame having our invention applied thereto;

Fig. 2 is a blank from which the outer casing of our improved heddle bar post may be conveniently formed;

Fig. 3 is a front elevation of the casing formed from the blank shown in Fig. 2-;

Fig. 4 is a side elevation of the casing shown in Fig. 3;

Fig. 5 shows a blank from which a threaded stud may be conveniently formed;

Fig. 6 is a front view of a stud formed from the blank shown in Fig. 5, but before the threading operation is performed thereon;

Fig. 7 is a side elevation of the threaded stud;

Fig. 8 is a side elevation of the complete heddle bar post;

Figs. 9 and 10 are side and end views of a spring used in our improved post;

Fig. 11 is a side elevation of the post in use, with the heddle bar shown in section; and

Fig. 12 is a front elevation, looking in the direction of the arrow 12 in Fig. 11.

Referring to Fig. 1, we have shown parts of a harness frame including a bottom member I5, end pieces IE, a plurality of steel heddles I1, and a heddle bar l8, the ends of said bar being attached tothe harness frame by any usual securing de- Vice, not shown.

Our; improved heddle bar post P is shown in operative positionin Fig. l and connects the heddle bar If! at an intermediate point with the bottomframe member 15.

It will be understood that a second heddle bar I is. provided for the upper ends of the heddles H and that a similar heddle bar post secures the upperheddle bar to the top member of the harness frame.

Our improved heddle bar post is shown in side '10 elevation in Fig. 8 and comprises a threaded stud 20, a casing 2! slidable on the stud. a spring 22, and a pin 23. The casing Zl'may be conveniently made from sheet material by providing a'blank B as shown in Fig. 2, from which the casing 2|.may be formed by bending or folding operations. The casing 2i, when complete, presents. the; appearance shown in Figs. 3 and 4, with an opening 2'5 in its forward edge portion and with offset recesses 26in its side portions to receive the-lower edge of a heddle bar [8. Slotted openings 21 are provided for the ends of the pin 23, when the parts are assembled as shown in Fig. 8. The lug or projection 28 at the top of the blank is bent downward to close the upper end of the casing and to provide a seat for the upper end of the spring 22.

The threaded stud 20 may be machined from a rectangular steel rod but is preferably formed from sheet metal by providing a blank B as shown in Fig. 5, the sides of which are then folded together to produce the structure shown in Fig. 6. This part is then threaded to provide the finished stud 20 shown in Figs. '7 and 8. The stud 20 has an opening 30 in its front edge, together .with an upwardly offset recess 3| to receive the upper edge of the heddle bar l8.

The spring 22 may be of any usual form but is preferably a special spring as shown in Figs. 9 and 10, comprising a series of reverse loops in a, vertical plane, together with transverse loops at its two ends.

In assembling our improved heddle bar post, we place the spring 22 in the closed end of the easing 2|, then slide the casing 2| over the stud 20, and insert the pin 23 through the slots 21 and through an opening 33 in the stud 20, the pin being preferably a drive fit in the opening 33.

When a heddle bar is to be inserted in the post P, the operator depresses the casing 2| by pushing on the outer end thereof, thus bringing the openings 25 and 30 into alignment, so that the heddle bar l8 can be freely inserted from the side. The casing is then released and slides upward to the position shown in Figs. 8, 11 and gas 12, thus firmly gripping the heddle bar 18 and efiectively preventing lateral displacement thereof.

The heddle bar may be readily removed, however, by pressing downward on the casingZl in the direction of the arrow a in Figs 11. A particular advantage of my improved post lies in the fact that the spring 22 is entirely enclosed within the upper part of the casing 2| and is thus fully protected from injury or accumulation of dirt or lint.

Having thus described our invention and the advantages thereof, we do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what we claim is:

1. A heddle bar post comprising a stud, a casing extending beyond the outer end of said stud and having a portion to underly a heddle bar, a spring mounted between the outer ends of said stud and casing, and means to limit outward movement of said casing relative to said stud.

2. A heddle bar post comprising a stud having a side opening to receive a heddle bar and having a part overlying said bar, a member slidable on said stud and having a part underlying said bar and a part extending beyond the outer end of said stud, a spring interposed between the outer ends of said stud and sliding member and operative to move said member outward to lock a heddle bar in position, and means to limit outward movement of said sliding member relative to said stud.

3. A heddle bar post comprising a stud having a side opening to receive a heddle bar, a casing slidable on said stud and having a corresponding side opening, said casing extending beyond said stud and being closed at its outer end, a spring interposed between said closed casing end and the outer end of the stud, and means to slidably secure said casing on said stud.

4. A heddle bar post comprising a stud having slidable on said stud and having a side opening with an inner end recess to receive the under edge of said bar and having an end portion extending beyond the end of said stud, a spring interposed between'the outer ends of said stud and casing and efiective to move said casing to locking position, and means to limit sliding movement of said casing relative to said stud.

6. A heddle bar post comprising a stud having a side opening with an outer end recess to receive the upper edge of a heddle bar, a casing slidable on said stud and having a side opening with an inner end recess to receive the under edge of said bar, said openings being alignable to permit insertion or removal of a heddle bar and said casing having an end portion extending beyond the end of said stud, a spring interposed between'the outer ends of said stud and casing and effective to move said casing to locking position, and means to limit sliding movement of said casing relative to said stud.

'7. A heddle bar post comprising a folded sheet metal stud, a folded sheet metal casing extending beyond the outer end of said stud and having a portion to underly a heddle bar, a spring mounted between the outer ends of said stud and casing, and means to limit outward movement of said casing relative to said stud.

PHILIP L. SPENCER. CHARLES A. DODGE.

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