US2144158A - Heddle frame - Google Patents

Description

Jan. 17, 1939. w. H. K LLY 2,144,158

HEDDLE FRAME Filed April '7, 1938 FIEJ A 5 E 'M/INV TO R.

ATTORNEY.

Patented Jan. 17, 1939 PATENT ()FFlCE HEDDLE FRAME William Hardy Kelly, Lawrence, Mass, assignor' to Emmons Loom Harness Company, Lawrence, Mass, a corporation of Massachusetts Application April 7, 1938, Serial No. 200,669

3 Claims.

, This invention relates to heddle frames for looms and particularly to what are known as stay rods such as are located intermediate the ends between the top and bottom rails for stiffen ing, strengthening and steadying the construction, particularly on long heddle frames. The object of my invention is to provide a stay rod and its connections which are inexpensive and easy to attach and detach and which will hold the top and bottom rails and the heddle bar firmly in place.

The principal feature of this device is the use of a stay rod with a recess or recesses near each end to receive and hold a heddle bar, together with means at one end to fasten it to a top or preferably to a bottom rail and with a hole at the other end which registers with a holding member having a similar hole or holes and a spring actuated bolt slidable parallel with the rail which passes through the holes in the holding member and in the heddle bar, thus locking them in position.

As there are often a large number of harnesses, one behind the other and close to each other, carrying a large number of heddles through which warp threads are running, it is desirable, in case of an accident, that a stay rod should be so attached and supported that it can easily be removed without disturbing the warp threads or the heddles and with little danger of injuring them.

One advantage of the preferred types of my device is that a stay bar can be put in place or removed by pushing it down from the top or up from the bottom and moving it a fraction of an inch only to the right or left.

In the drawing,

Fig. 1 is an elevation of a heddle frame.

Fig. 2 is an elevation of the top of a stay rod with its connections, and

Fig. 3 is an elevation of the bottom of the same heddle rod with its connections.

Fig. 4 is a sectional elevation as from the left of Fig. 3, showing the preferred method of attaching same kind of stay rod as shown in Figs. 1, 2 and 3.

Fig. 5 is a side elevation, partly in section, of a stay rod with somewhat different connections.

Fig. 6 is a view similar to Fig. 2 but of the other or bottom end of a stay rod of a slightly modified construction.

Fig. '7 is an isometric view of another type of attaching member or means to hold the end of a stay rod opposite the bolt to the other heddle bar.

Fig. 8 is a side elevation of another slightly different type of stay rod, showing its construction at the end opposite from the bolt in its connections with the heddle bar.

In Figs. 1 to 4 of the drawing, A and B represent the top and bottom rails respectively and C and D the fixed end strips While T, T represent the heddle bars.

S represents the stay rod which is provided with the recesses 3 and 4 which, as shown, are open and which receive the heddle bars T, T and hold them in place. Each stay rod S also has at one end an oval hole 5 which can easily be engaged with an open hook H fixed on the inner side or face of bottom rail B.

Through the other or top end of the stay rod S is a hole I and on the inside face or edge of top rail A is the bifurcated fixed holder E into which the end of stay rod S enters so that its hole 1 will register with similar holes 9, 9 through both prongs 8, 8 of this fixed holder member E.

F is a spring bolt including the rod N which slides in the holes 9, 9 at one end and through a guide H at the other end. Bolt F has an enlarged knurled portion l2 between which and. support II is a compression spring [3.

To put a stay rod such as S in place, its bottom end with the oval hole 5 is brought down to the open side of open hook H, the hook and hole being of such size that the hook will pass readily through hole 5, after which the rod S is moved in between the prongs 8, 8 of member E while bolt F is withdrawn and when in place, the bolt F is allowed to pass through the holes 9, 9 in member E and hole 1 in rod S.

In Fig. 5, I show a holding member L with a shank which goes entirely through the top rail and is screw-threaded at 20 so that a wing nut 2| can be screwed up or loosened, allowing the member L to be locked in place in a well-known manner. The bolt F is the same as in the first construction but the stay rod M has a round hole 22 in the top which registers with the holes 23, 23 in the member L and at the bottom has a hole 24 which is round instead of being a slot. Hook H is the same. i

To attach this stay rod M, the lower hook H is passed through the hole 24, while the rod is at right angles to the frame and the rod is then swung up and back and twisted so as to get in between the members of the holder L.

In Fig. 6 at N is shown a bolt similar to F at the bottom, showing that the stay rod can have a round hole 21 at the bottom' of a stay rod 0 as well as at the top and that there can be a spring bolt F both at the bottom and the top.

In Fig. 8, I show a stay rod R with a hole 21 at the top for a bolt and at the bottom a neck 28 and a head 29 which can be pushed into a U-shaped holder 30 with a slot 3] and then turned so that the head 29 will hold this end in place.

In Fig. 7, I show a somewhat different type of bottom or open hook U which has a screw shank 33 which is smooth at the top 34 and then bends at a right angle at 35 and around in a half circle at 36.

With this type of hook, a round instead of oval hole can be used at that, end of the stay rod. In putting it in place, the tip 31 of the hook is passed through the hole and then the stay rod is pushed around about 180 where it is then held in place and is locked against displacements by a bolt at the top.

This construction or the construction with the bolt at the top and bottom can be used to advantage where it is desirable to resist any tendency for the top and bottom rails to pull apart.

In the drawing, I call 1, 9 and 22 holes and and 24 perforations.

I claim:

1. In a heddle frame, having'top and bottom rails connected by ends and including heddle supporting bars, a stay rod arranged intermediate the ends of the frame, said stay rod having recesses near its ends in which the heddle bars aresupported, a slot at one end and a hole at the other end, an open hook fixed inside of one rail and passing through the slot in the stay rod and a member fixed inside the other rail having holes which register with the hole in the stay rod, together with a spring actuated bolt which passes through the holes in the fixed member and in the stay rod and which is slidable parallel with the rail.

2. In a heddle frame, having top and bottom rails connected by ends and including heddle supporting bars, a stay rod arranged intermediate the ends of the frame, said stay rod having recesses near its ends in which the heddle bars are supported, a hole at one end and a passage in the other end, a member fixed inside one rail having parallel prongs through which are holes which register with the hole in the stay rod, a spring actuated bolt which passes through the holes in the fixed member and the hole in the stay rod, which bolt is slidable parallel with the rail and a member fixed inside the other rail which engages with the passage at the other end of the stay rod.

3. In a heddle frame, having top and bottom rails connected by ends and including heddle supporting bars, a stay rod arranged intermediate the ends of the frame, said stay rod having recesses near its ends in which the heddle bars are supported, a hole through one end and a member fixed inside the rail having a hole which registers with said hole in the stay rod, together with a spring actuated bolt which passes through the holes in the fixed member and in the stay rod, said bolt being slidable parallel with the rail, together with means to hold the other end of the stay rod to the other rail.

WILLIAM HARDY KELLY.

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