US2549618A - Pirn or cone holder - Google Patents

Description

April 17, 1951 J. M BRIDE PIRN OR CONE HOLDER Filed March 31, 1948 INVENTOR. EPWAIZD I, McBZmE.

ATTOZ/JE 7i Patented Apr. 17, 1951 UNITED STATES PATENT OFFICE PIRN on CONE HOLDER Edward J. McBride, Philadelphia, Pa. 7 Application March 31, 1948, Serial No. 18,259 i 3 claims. (o1.242-130) I My invention relates to a pirnor cone holder adapted selectively to hold or support yarncarrying devices having either cylindrical or conical shells or tubes. 1 I

One well known type of holderis formed of a shank and a pair of oppositely bowed'springs having their inner ends secured near the inner end of the shank and having their .outer ends slidably engaging a slot in the adjacent portion of the shank. This type of holder is exemplified in such priorpatents as 1,454,660 of May 8, 1923, issued to Tuttle, and 1,457,572 'of 'June 5, 1923, issued to Hartnett.. Aholder .of this type is useful for supporting a pirnhaving a cylindrical tube and for supporting a cone or other yarn carrying device having a conical tube. It has generally been the practice to remove the pirn holder and replace it with a holder having a conical contour.

In order to overcome this difficulty it has been proposed, as shown in U. 8. Patent 2,437,100, issued to F. Lambach on March 2, 1948, to provide an auxiliary conical holder which could be passed over the bowed springs, so as to'adapt the original holder for supporting a cone.

While the auxiliary holder referred to is operative, its structure and arrangement are complicated and expensive and it is difficult to apply and remove.

aware, the holder was formed of wire which has a smooth and generally rounded surface with the result that, unless additional engagin means were provided, the pirnorj'cone tended 'to..fal1 off the holder. This additional engaging means took the form of a member which pierced the cardboard tubes, as for example the toothed washer shown in Fig, 3 of the Lambach patent, or the ratchet 6 of the Patent 734,293, issued to Bates et al. on July 21, 1903. While such toothed means operated satisfactorily to hold the pirn or cone in place, it also damaged or destroyed Furthermore, in prior structures of which I am fll) 2 will be understood from the following "specification and the accompanying drawings in which Fig. 1 is a side elevational view of a holder embodying my invention.

Fig. 2 is afragmentary enlarged section on line 2--2 on Fig. 1.

Fig. 3 is a sectional view taken on lines 3--3 on Fig. 1.

. Fig. 4 is an end elevational view looking in vided with a pair of oppositely disposed, bowed springs I4 which extend from a point near the inner end of the shank toward the outer or free end of the shank. The inner ends ofthe springs are secured in position by any suitable means such as a collar 16. The other ends of the springs slidably engage corresponding ends of a through opening 18 provided near the other end of the shank.

The structure thus far described is useful for supporting a pirn having a cylindrical tube, in

ents.

In order to provide improved means for adapting the conventional holder above described to the support of" a cone;-or' other yarn carrying device, I use a first head 20' for supporting the large end of a conical cage embodying my invention and a secondhead 22 for supporting the small end of the cage. The cage itself is formed of relatively thin but relatively wide resilient members 24. In the illustrated embodiment, each strip 24 has its inner end portion 26 bent normal to the axis of the shaft and provided with a slot 28, for slidably engaging an ear or lug 30 on the washer 20.

According to my invention, the other or outer end of each of the strips 24 is rigidly secured to the outer head 22 by providing a recess 32 in the periphery of the head, placing the end of the the manner shown in the above mentioned patstripin said recess and swedging the edges of Y the recess over the end of the strip as shown at 34 in Figs. 1 and 5. For this purpose, and in order to accommodate the wide strips 24, the exterior of the outer head 22 presents as 'many flat facets as there are strips. This can be readily seen from Fig. 4. r

A cage constructed of the wide strips disclosed furnishes enough purchase so as to hold a conical tube in position without the aid of means which pierce or otherwise damage the relatively fragile tube. This is best observed in Figs. 2 and 4 from which it will be seen that the conical tube 36 engages each of the strips at two points A so that, if only three strips 24 are used, there will be a total of six points of contact which, together with the frictional engagement of the small end of the cage with the high ridges B on the head 22 are enough to hold the conical tube firmly in position but without in any way damaging the tube.

The conical cage of my invention is-secured to the shank by one or more set screws 38 which pass through threaded openings in the head '22 and engage recesses formed in the adjacent end of the shank. The set screws, preferably, also pass through the outer ends of the strips as shown in Fig. 4 more firmly to hold the strips in position.

In-order to facilitate the task of applying my auxiliary holder to the shank when cones are to be used, and the task of removing the auxiliary holder when cylindrical bobbins are to be mounted on thebowed springs I4, I provide the inner head 28 and the outer head 22 with aligned U-shaped openings 49 which are large enough to admit the shank. In other words, when my auxiliary holder is to be used, it is merely necessary to lower the .holder'onto the shank so as to cause the Washer 28 and the head 22 to ride on the shank as clearly shown in Figs. 3 and 4. When the auxiliary holder is in this position, the set screws 36 are tightened. To remove the auxiliary holder, it is merely necessary to disengage the set screws and to lift the auxiliary holder off the shank. This is much easier than using a holder having apertured front and rear heads and forc- 40 ing the apertured rear head to pass over and compress the bowed springs l4 every time the auxiliary holder is applied or removed. Also, repeated, extreme compression of the bowed springs 14, such as would necessarily take place every time the auxiliary holder is passed over these springs will, in time, reduce or destroy the resiliency of the springs i i. It will also be noted that the materials and the machine work involved in the manufacture of my auxiliary conical holder are appreciably less than those involved in the manufacture of any prior auxiliary holder of which I am aware.

While I haveillustrated and described my improved holder as it would be used in connection with a conventional holder formed of a shank and bowed springs carried by said shank, it is to be understood that my holder is a self contained 4 and fully operative device which can be used alone and independently of the bowed springs. For example, in a mill where only cones are used, the holder of my invention can be mounted on the shank II] or its equivalent and the bowed springs I4 can be entirely omitted.

Also, it is within the scope of my invention to shape the strips 24 to form a resilient cylindrical corefor mounting pirns or other yarn carriers having cylindrical tubes. In other Words my invention resides primarily in the provision of the openings 40 by means of which the holder can be lowered onto, or lifted from, a supporting shank, instead of being passed over, or having the shank threaded through the body of the holder, and, secondarily, my invention resides in the manner in which the ends of the strips 24 engage and support the pirn or cone without the use of teeth or other fastening means which can damage the pirn or cone.

What I claim is:

-1. A pirn or cone holder including a support, spaced heads, elongated members, secured to, and connecting said heads, each of said heads having an opening leading from the periphery toward the center thereof, the openings in said heads being aligned and large enough to accommodate said support, and means for detachably securing at least one of said heads to said support.

2. The structure recited in claim 1 in which one of said heads is polygonal, there being recesses formed in'the sides'of said head for seating the adjacent ends of said elongated members, and in which the edges of .said recesses are swedged over the ends of said members permanently to secure said'members to said head.

3. The structure recited in claim 1 in which one of said heads is bigger than the other and in which said members form a conical cage like structure tapering fromthe vicinity of the bigger of said 'headstowa'rds the smaller of said heads.

EDWARD J. 'McBRIDE.

REFERENCE S CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 50,241 Gou1ding 0ct.'3, 1865 1,317,545 Brink i Sept. 30, 1919 1,558,561 Mossberg' Oct. 27, 1925 2,046,559 Javery July 7, 1936 ,437,100 'Lambach Y'Mar. 2, 1948

Images