22 mai 2019 ~ 0 Commentaire

Filter Rod

There as been a rising interest in allergy filters for the home over the last several years. Transport tape 12 may be adjusted to run faster or slower than endless belt 17. An optimal speed differential between transport tape 12 and belt 17 will ensure that the vacuum applied to pockets 16 will draw all, or nearly all, of the free-flowing material 8 off transport tape 12, thereby eliminating the need to refeed or recirculate free-flowing material 8.
Transport tape 12 may be adjusted to run faster or slower than endless belt 17. An optimal speed differential between transport tape 12 and belt 17 will ensure that the vacuum acetate filter applied to pockets 16 will draw all, or nearly all, of the free-flowing material 8 off the tape, thereby eliminating the need to refeed or recirculate free-flowing material 8.

A series of filter plugs 33 separated by discrete receiving spaces 26 are axially aligned within trough-shaped plug wrap 42. This alternative embodiment includes a screening tape or belt 23 that travels between pockets 16 and filter plugs 33 transported through garniture 29. In this alternative embodiment, the plug wrap 42 does not necessarily touch sides 43 of the lower portion 38 of pocket 16.
Another object of the invention is to provide a method which is especially suited for the treatment of rod-shaped commodities prior to their conversion into short series of filter cigarettes or the like such as are required for testing in laboratories in order to ascertain the characteristics of various blends of tobacco.
5. The method of claim 1 of assembling rod-shaped articles and filter rod sections on an endless conveyor of the type having a series of parallel receiving means for rod-shaped articles and defining an endless path for the receiving means, wherein said delivering step comprises admitting successive articles into successive receiving means of the series and further comprising the step of holding each shifted article in the respective receiving means longer than necessary for a single transport along the endless path so that each shifted article registers with an article which is subsequently delivered to the same receiving means and occupies the first position therein.

The filter cigarettes of unit length are transferred onto the upper reach of an endless takeoff conveyor belt 57 by way of rotary drum-shaped fluted transfer conveyor 56. The conveyor belt 57 is located in, or delivers cigarettes directly into, a laboratory or into a vessel which can be transferred into the laboratory for examination of the filter cigarettes of unit length.
The similar analysis is also carried out by keeping hexagonal and square rods in the structure with different rod shapes in inner and scatterer rods whose corresponding details are tabularized in Table V and Table VI Though, the change in filtering performance of this structure is trivial, there is a linear relationship noticed between resonant wavelength and filling fraction.
As the force of the vacuum applied through transport tape 12 ceases, the free-flowing material 8 is no longer retained on the surface of transport tape 12. Also at approximately point 21, pockets 16 pass directly over the free-flowing material 8 that is on transport tape 12. Also at point 21, pockets 16 pass under a vacuum hood or chamber 20. Vacuum hood 20 applies vacuum through apertures 39 of pockets 16. This vacuum draws the free-flowing material 8 off transport tape 12 and up into the lower portion 38 of pocket 16. Screen 22 is permeable enough to allow the pull of vacuum, yet tight enough to prevent passage of free-flowing material 8.

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