Apparatus for forming composite rods
AssigneeMolins Limited
InventorsDesmond W. Molins, Michael J. Soborowski
Life of this patent
Estimating the term…
Abstract
Successive groups of axially aligned component filter portions are separately united by one or more wrapper portions while moving axially. The composite filter rods formed from the groups are separate, so that there is no need for a continuous rod cut-off. Composite filters, for attachment to cigarette lengths, are subsequently obtained from the rods by cutting at appropriate positions.
Claims18
Apparatus for forming composite filter rods, comprising conveyor means for moving a stream of axially aligned component filter portions in predetermined sequence on an axial path;
- means for assembling predetermined groups of filter portions from said stream;
- means for feeding said groups of filter portions forward at predetermined intervals;
- means for conveying a continuous wrapper;
- means for severing said wrapper into separate wrapper portions;
- means synchronised with said feeding means for applying at least one wrapper portion while one group of said predetermined groups of filter portions is being conveyed axially so that each of the junctions between component portions of a group of filter portions is spanned by a wrapper portion;
- and means for wrapping and sealing said at least one wrapper portion around said group of filter portions to unite it into a composite filter rod, said severing and applying means being arranged so that no wrapper portion spans more than one of said groups so that said groups are converted into a series of separate composite filter rods while moving in an axial direction.
Apparatus for forming composite filter rods, comprising conveyor means for moving a stream of axially aligned component filter portions in predetermined sequence on an axial path;
- means for assemblying predetermined groups of filter portions from said stream including means for retarding component filter portions relative to said conveyor means, said retarding means comprises an endless conveyor having a run parallel to said path and carrying spaced abutments for retarding component filter portions on said path;
- means for feeding said groups of filter portions forwarded at predetermined intervals;
- means for conveying a continuous wrapper;
- means for severing said wrapper into separate wrapper portions;
- means synchronized with said feeding means for applying at least one wrapper portion while one group of said predetermined groups of filter portions is being conveyed axially so that each of the junctions between component portions of a group of filter portions is spanned by a wrapper portion;
- and means for wrapping and sealing the at least one wrapper portion around said group of filter portions to unite it into an individual composite filter rod while moving in an axial direction.
Apparatus for forming composite filter rods comprising a first conveyor for moving a group of axially-aligned component filter portions in an axial direction;
- a second conveyor provided with spaced abutments and arranged to receive a group of axially aligned component filter portions from the first conveyor between successive leading and trailing abutments and to convey it in an axial direction;
- retarding means for slowing the component filter portions of a group of axially aligned component filter portions relative to the second conveyor so that they are engaged by said trailing abutment;
- and means synchronized with the second conveyor for applying at least one wrapper portion, while said group of axially aligned component filter portions is being conveyed axially by the second conveyor, so that each of the junctions between component filter portions of a group of axially aligned component filter portions is spanned by a wrapper portion and no wrapper portion extends between groups, so that said groups are converted into a series of separate composite filter rods.
Apparatus for forming composite filter rods, comprising conveyor means for moving a stream of axially aligned component filter portions in predetermined sequence on an axial path;
- timing means for feeding said stream of axially aligned component filter portions forward at a predetermined rate;
- means for conveying a continuous wrapper;
- means for cutting and spacing said wrapper into separate spaced wrapper portions;
- means synchronised with said timing means for applying said spaced wrapper portions to said stream of axially aligned component filter portions, so that each wrapper portion spans at least three successive junctions between component filter portions and successive wrapper portions are separated by a gap including the junction between predetermined successive component filter portions;
- and means for wrapping and sealing the wrapper portions around the component filter portions whereby individual composite filter rods each comprising not less than four component filter portions united by a single wrapper portions are delivered axially on said path.
An apparatus for forming composite rods, the apparatus comprising means for feeding a stream of rod-like articles in an axial direction, means for feeding a continuous wrapper, means for severing the continuous wrapper into sections and for spacing the sections apart in a continuously moving stream, means for receiving said stream of rod-like articles and said stream of spaced wrapper sections and for conveying them together in the axial direction, and means for wrapping and uniting each wrapper section around at least end portions of successive rod-like articles in said stream of rod-like articles, said respective streams of articles and wrapper sections being received in a specific relationship such that predetermined junctions between adjacent articles of the stream of rod-like articles are not spanned and united by a wrapper section so that a series of individually axially moving composite rods is produced.
Dependencies are inferred from the claim text.