# US 4,765,554 A · Relating to compression type rolling machines

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- Number: US 4,765,554 A
- Document ID: US4765554A
- Status: Granted
- Kind: A
- Application number: 07/024,600
- Filed: 1987-03-11
- Granted: 1988-08-23
- Earliest claimed: 1986-03-11
- Assignees: Isover Saint-Gobain
- Inventors: Guy Tuffal; Yves Audren
- Web page: https://patentgrep.com/patent/US4765554A

## CPC

- B65H 27/00: Special constructions, e.g. surface features, of feed or guide rollers for webs (rollers in general F16C13/00)
- B65H 2404/13163: in longitudinal direction
- B65H 2701/177: Fibrous or compressible material
- B65H 2701/1846: Parts concerned
- B65H 2701/1922: for covering surfaces such as carpets, roads, roofs or walls
- Y10S 242/03: Coreless coilers
- B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

In the packaging of products such as rolls of mineral wool felts, a series of members entrain the felt into a space in which the rolling-up takes place. At least one of these members is mobile in relation to the others in order to alter the size of the space in which the rolling-up takes place as the roll of felt increases in size. This movable member is a roller whose surface contracting the felt is covered with an inorganic coating resistant to abrasion and adapted to have a rough finish.

## Claims

### Claim 1

An apparatus for forming strips of mineral fibers into compressed fiber rolls, comprising:
a plurality of members defining a space in which the strip is rolled;
means for rolling said strip to form a roll;
means for moving at least one of said members in relation to others of said members in such a manner that said space is altered in accordance with a size of a roll being formed, wherein said at least one of said members each comprises a roller having a felt contacting surface in the form of regularly disposed relief elements; and
an abrasion resistant inorganic coating on at least a portion of said felt contacting surface of said roller.

### Claim 2 (depends on 1)

Apparatus according to claim 1 in which the abrasion-resistant inorganic coating comprises one of the compounds of the group consisting of carbides of molybdenum, nitrides of molybdenum, tungsten and silicon.

### Claim 3 (depends on 2)

Apparatus according to claim 2 in which the inorganic coating comprises grains deposited by a schoop process.

### Claim 4 (depends on 3)

Apparatus according to claim 3 in which the grains form elements having dimensions which are less than 1 mm.

### Claim 5 (depends on 3)

Apparatus according to claim 3 wherein said abrasion-resistant inorganic coating includes a metallic coating forming a support for the said grains.

### Claim 6 (depends on 5)

Apparatus according to claim 5 wherein said metallic coating comprises a layer deposited by said schoop process.

### Claim 7 (depends on 1)

Apparatus according to claim 1 wherein said relief elements project from said roller by at least 2 mm.

### Claim 8 (depends on 7)

Apparatus according to claim 7 wherein said relief elements are separated by regular widths of no more than 20 mm and project from said roller by between 3 and 10 mm.

### Claim 9 (depends on 8)

Apparatus according to claim 8 wherein said relief elements are formed by removable bars fixed to said roller.

### Claim 10 (depends on 9)

Apparatus according to claim 9 wherein said portion of said felt contacting surface having said coating comprises upper faces of said bars.

### Claim 11 (depends on 7)

Apparatus according to claim 7 wherein said relief elements are formed by removable bars fixed to said roller.

### Claim 12 (depends on 11)

Apparatus according to claim 11 wherein said portion of said felt contacting surface having said coating comprises upper faces of said bars.