US2077891A

US2077891A - Means for joining the ends of drier felts and the like

Info

Publication number: US2077891A
Application number: US54634A
Authority: US
Inventors: Milnes Tom
Original assignee: AYERS Ltd
Current assignee: AYERS Ltd
Priority date: 1935-12-16
Filing date: 1935-12-16
Publication date: 1937-04-20
Anticipated expiration: 1954-04-20

Description

A ril 20, 1937. r T. MILNES 2,077,891

MEANS FOR JOINING THE ENDS 0F DRIER FELTS AND THE LIKE Filed Dec. 16, 1935 I k n F164 I INVENTOR TOM M ILNES ATTORNE Patented Apr. 20, 1937 UNITED STATS PATENT ()FFICE MEANS FOR JOINING ENDS OF DRIER FELTS AND THE LIKE Tom Milnes, Lachute Mills, Quebec, Canada, as-

signor of one-half to Ayers Limited, Lachute Mills, Quebec, Canada This invention relates to means for joining together the ends of paper machine drier felts, belts and the like.

More particularly, the present invention relates to improvements in joints of the type disclosed in my prior Patent 2,005,979, granted June 25, 1935. In that patent I have disclosed a joint construction in which the ends of a drier felt are turned back and fastened to the body of the felt to provide integral tubular terminals. Each terminal is slotted to provide a plurality of laterally spaced loops which are fitted between the loops of the remaining terminal. One or more relatively thin fiat metal strips are then passed through both sets of loops to serve as retaining keys for holding the loops in their interfitting relation.

According to the present invention the flat metal strips heretofore employed for holding the loops of the felt in interfitting relation are re- 20 placed by an improved key or holding device which is more flexible and less liable to injure the fabric of the loops. This improved device comprises a highly flexible core of metallic or nonmetallic material encased in a textile covering 25 which, because of its texture and also because of a swelling action which takes place after a certain period of use, becomes such a tight fit in the loops of the fabric as to eliminate any possibility of the holding device creeping or pulling out of the loops. In one form of holding device the core is composed of one or more lengths of highly flexible stranded wire encased in a braided covering made of heavy textile cords. In another form of holding device the core is made of relatively heavy textile cord provided with a wrapping of finer cord which constitutes the textile covering.

Proceeding now to a more detailed description of the invention reference will be had to the ac- 40 companying drawing wherein:

Figure 1 is a perspective view of the two ends of a drier felt joined together in accordance with this invention, one of the interfitting loops of the felt being broken away to expose the key or hold- 45 ing device which secures the two sets of loops in their interfitting relation. In this view the key or holding device is shown as it appears prior to a trimming operation by which the ends of said key or holding device are cut off flush with the 50 side edges of the felt.

Figure 2 is a view similar to Figure 1 but showing the key or holding device as it appears after the aforesaid trimming operation.

Figure 3 is a sectional view taken substantially 55 along the line 3-3 of Figure 2.

iii

Figure 4 is a view of the key or holding device per se.

Figure 5 is a view similar to Fig. 4 but showing a modification of the key or holding device.

Referring more particularly to the drawing, 5 and 6 designate the two ends of a drier felt which are to be joined together. The end 5 is formed, as described in my prior patent, to present a plurality of loops 1 fitted between similar loops 8 of the end 6. The two sets of loops are secured together by passing therethrough my improved flexible key or holding device indicated at 9.

In the construction shown in Figs. 1 to 4 inclusive, the key or holding device comprises a metal core H and a fabric covering it. The core H may consist of one or more lengths of highly flexible wire which may be either solid or stranded. In the present instance the core is formed by two lengths of stranded wire which are doubled upon themselves and then encased in the fabric covering I2, so that the looped ends of the double strands project beyond one end of the fabric covering, as indicated at M. These looped ends it are adapted to be engaged by a hooked implement or otherwise employed to assist in drawing the key or holding device through the loops 1 and 8. After the key or holding device has been drawn through the loops, as shown in Figure 1, the projecting ends are cut off flush with the side edges of the felt, so that the finished joint has the appearance shown in Figure 2.

The fabric covering E2 of the key or holding device is preferably a braided covering made of relatively heavy textile cords. The irregular surface presented by this type of covering is of advantage in that it tends to prevent the holding device creeping or pulling out of the loops 1 and 8. Another advantage of the fabric covering is that, after a certain period of use, during which it is exposed to moisture, it tends to swell and fill the loops so tightly as to prevent any possibility of accidental displacement with reference to the loops '5 and 8. In addition to these advantages the fabric covering prevents any possibility of the loops being torn or damaged by contact with the metal core portion of the key or holding device.

In the construction shown in Fig. 5, the core of the key or holding device consists of a heavy cotton or other textile cord to doubled upon itself to provide parallel strands Mia and l6b which are bound together in side by side relation by a textile cord binding I! which serves as the textile coverure 3 where it Will be noted that the thickness of j the key is relatively small compared with its length and width.

Having thus described my invention, what I claim is 1 A drier felt having end portions turned back a and fastened to the body of the felt to provide integral tubular terminals, each of said terminals being slotted to provide a series of loops fitted between the loops of the remaining terminals and a retaining key passing through the two sets of loops and serving to hold them in their interfitting relation, said key comprising a highly flexible core completely enclosed within a fabric covering contacting said loops.

2. A drier felt having end portions turned back and fastened to the body of the felt to provide integral tubular terminals, each of said terminals being slotted to provide a series of loops fitted between the loops of the remaining terminals and a retaining key passing through the two sets of loops and serving to hold them in their interfitting relation, said key comprising a textile cord doubled upon itself to provide two strands in side by side relation and means for binding said strands together comprising a wrapping of relatively finer textile cord.

TOM MILNES.