| (19) |
 |
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(11) |
EP 0 074 220 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
16.05.1984 Bulletin 1984/20 |
| (43) |
Date of publication A2: |
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16.03.1983 Bulletin 1983/11 |
| (22) |
Date of filing: 26.08.1982 |
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| (84) |
Designated Contracting States: |
|
AT BE CH DE FR IT LI LU NL SE |
| (30) |
Priority: |
26.08.1981 GB 8126003
|
| (71) |
Applicant: Lancaster Glass Fibre Limited |
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() |
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| |
|
| (54) |
Improvements in or relating to inserts for silencers |
(57) An insert for use in an internal combustion engine silencer consisting of a central
cylindrical former, an outer portion surrounding the former formed of a fibrous material
in which the fibres are heat resistant such as basalt fibres, and an outer covering
of sheet or scrim material for retaining the fibrous material of the outer portion
in position relatively to the former. The insert is formed by inserting a length of
the fibrous material loosely around the former placing the fibrous material and former
into a loop of an endless belt, applying tension thereto and rotating the endless
belt to roll the fibrous material around the former and an outer covering of sheet
or scrim material is wrapped around the rolled insert to retain the shape thereof.