EP0122717A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fibre metering arrangement
Assignee: Haigh Chadwick Ltd
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Filing: 1984-03-14
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Granted: —
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Expires: 2004-03-14
Abstract
Abstract A fibre metering arrangement comprises a supply conveyor carrying fibre to a weighplate, and a nip roller arrangement removing the fibre from the weightplate, and being sufficiently spaced from the weighplate so as not to cause the fibre to accumulate over the weighplate. If the gap is such that some fleece might sag, a bridging plate or a take-off conveyor can be inserted. Preferably, there is a draft between the supply conveyor and the take-off conveyor or nip rollers.
Inventors
- 👤 David Brunnschweiler
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 08:22
CPC Classifications
D; D01; D01G; D01G23/00; D01G23/06
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
43 words
A fibre metering arrangement comprising a supply conveyor carrying fibre to a weighplate, characterised by a roller arrangement removing the fibre from the weighplate, and being sufficiently spaced from the weighplate so as not to cause the fibre to accumulate over the weighplate.
Claim 2
Dependent Claim
43 words
A fibre metering arrangement comprising a supply conveyor carrying fibre to a weighplate, characterised by a roller arrangement removing the fibre from the weighplate, and being sufficiently spaced from the weighplate so as not to cause the fibre to accumulate over the weighplate.
Claim 3
Dependent Claim
18 words
A fibre metering arrangement according to claim 1 characterised in that the said roller arrangement comprises nip rollers.
Claim 4
Dependent Claim
37 words
A fibre metering arrangement according to claim 2, characterised in that the nip rollers are spaced from the weighplate by a distance at least commensurate with the thickness of any fleece to be metered by the arrangement.
Claim 5
Dependent Claim
29 words
A fibre metering arrangement according to claim 3, characterised in that the nip of the nip rollers is at least ten centimetres distant from the edge of the weighplate.
Claim 6
Dependent Claim
23 words
A fibre metering arrangement according to claim 1 characterised in that the said roller arrangement comprises a single roller with a cooperating dish.
Claim 7
Dependent Claim
27 words
A fibre metering arrangement according to any one of claims 1 to 5, charactersied by further support means are provided between the weighplate and the nip rollers.
Claim 8
Dependent Claim
19 words
A fibre metering arrangement according to claim 6, characterised in that said further support means comprise a bridging plate.
Claim 9
Dependent Claim
19 words
A fibre metering arrangement according to claim 6, characterised in that said further support means comprise a take-off conveyor.
Claim 10
Dependent Claim
28 words
A fibre metering arrangement according to any one of claims 1 to 8, characterised in that a draft is provided between the supply conveyor and the roller arrangement.
Claim 11
Dependent Claim
22 words
A fibre metering arrangement according to claim 9, characterised in that the roller arrangement runs some 10% faster than the supply conveyor.
Claim 12
Dependent Claim
23 words
A fibre metering arrangement according to claim 8, characterised in that a draft is provided between the supply conveyor and the take-off conveyor.
Claim 13
Dependent Claim
22 words
A fibre metering arrangement according to claim 11, characterised in that the take-off conveyor runs some 10% faster than the supply conveyor.
Claim 14
Dependent Claim
26 words
A fibre metering arrangement according to claim 11 or claim 12, characterised in that a draft is provided between the roller arrangement and the take-off conveyor.
Claim 15
Dependent Claim
22 words
A fibre metering arrangement according to claim 13, characterised in that the roller arrangement runs some 10% faster than the take-off conveyor.
Claim 16
Dependent Claim
26 words
A fibre metering arrangement according to any one of claims 12 to 14, characterised in that the roller arrangement is driven independently of the supply conveyor.
Claim 17
Dependent Claim
29 words
A fibre metering arrangement according to any one of claims 8, 11, 12, 13 and 14, characterised in that the take-off conveyor is driven independently of the supply conveyor.
Claim 18
Dependent Claim
25 words
A fibre metering arrangement according to any one of claims 1 to 16, characterised by comprising control means operative to effect a constant weight output.
Claim 19
Dependent Claim
48 words
A fibre metering arrangement according to claim 17, characterised in that the control means control the speed of the supply conveyor in response to signals from the weighplate so as to tend to maintain the indicated weight constant, while the speed of the roller arrangement is maintained steady.
Claim 20
Dependent Claim
23 words
A fibre metering arrangement according to any one of claims 1 to 18, characterised in that the weighplate has a low friction surface.
Claim 21
Dependent Claim
19 words
A fibre metering arrangement according to claim 17, characterised in that the bridging plate has a low friction surface.
Claim 22
Dependent Claim
21 words
A fibre metering arrangement according to claim 19 or claim 20, characterised in that the low friction surface is of polytetrafluoroethulene.
Claim 23
Dependent Claim
33 words
A fibre metering arrangement according to any one of claims 1 to 21, characterised in that a conveyor of the arrangement has a surface friction substantially higher than that of the weighplate surface.
Claim 24
Dependent Claim
26 words
A fibre metering arrangement according to any one of claims 1 to 22, characterised by including means for determining the moisture content of fibres being metered.
Claim 25
Dependent Claim
17 words
A fibre metering arrangement according to claim 23, characterised by said moisture content means comprising capacitance means.
Claim 26
Dependent Claim
19 words
A fibre metering arrangement according to claim 24, characterised by said capacitance means comprising the weighplate as one electrode.
Claim 27
Dependent Claim
35 words
A fibre metering arrangement according to any one of claims 23 to 25, characterised in that the moisture content means affects rate of metering so as to compensate for the moisture content of the fibre.
References Cited (Backward Citations)
No citation records indexed.
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