초록 ▼

Screens and screen assemblies for a vibratory separator or shale shaker, such screens and screen assemblies made by a method including applying glue in a glue pattern to at least one layer of screening material, said applying done by powered moving mechanical glue application apparatus; in one aspec

Screens and screen assemblies for a vibratory separator or shale shaker, such screens and screen assemblies made by a method including applying glue in a glue pattern to at least one layer of screening material, said applying done by powered moving mechanical glue application apparatus; in one aspect moving with powered mechanical screen movement apparatus the at least one layer of screening material beneath the powered moving mechanical glue application apparatus; in one aspect, using hot melt moisture-curing glue, and in one aspect facilitating the cure of moisture-curing glue by applying moisture to it.

대표청구항 ▼

Screens and screen assemblies for a vibratory separator or shale shaker, such screens and screen assemblies made by a method including applying glue in a glue pattern to at least one layer of screening material, said applying done by powered moving mechanical glue application apparatus; in one aspec

Screens and screen assemblies for a vibratory separator or shale shaker, such screens and screen assemblies made by a method including applying glue in a glue pattern to at least one layer of screening material, said applying done by powered moving mechanical glue application apparatus; in one aspect moving with powered mechanical screen movement apparatus the at least one layer of screening material beneath the powered moving mechanical glue application apparatus; in one aspect, using hot melt moisture-curing glue, and in one aspect facilitating the cure of moisture-curing glue by applying moisture to it. 1. A device for collecting and re-cycling articles sent toward feeding channels, comprising: a station, where the articles are accumulated; a selecting member, situated downstream of said accumulation station for receiving, in a predetermined way, said articles from said accumulation station, said selecting member selecting and holding complying articles, separating the complying articles from faulty, fragmented articles and from powders present among said articles; a linear conveyor member, situated downstream of said selecting member, for receiving, from said selecting member, said complying articles and sending the complying articles to inlets of said feeding channels; collecting means, situated directly downstream of said inlets for receiving, from said conveyor member, the exceeding articles accumulated near the inlets, and transferring means, for receiving, from said collecting means, exceeding articles and transferring said exceeding articles to an initial section of said selecting member, the exceeding articles verified as being compliant articles, re-cycled and verified again as being compliant articles. 2. A device according to claim 1, wherein said collecting means include a chute, for receiving the exceeding articles from said conveyor member, and transferring the exceeding articles into a lower basket, equipped with a movable discharge wall, usually in a closed configuration, being movable to an open configuration in a predetermined way and at predetermined intervals, in order to discharge the exceeding articles, onto said conveying member.3. A device according to claim 1, wherein said conveying member has a carriage for collecting said exceeding articles received from said collecting means, the carriage being hinged to a slide, which reciprocates along a guide extending from said collecting means, below the collecting means, to said initial section of said selecting member, above and beside the selecting member, said guide being equipped, at a region corresponding to an end situated near said selecting member, with overturning means for overturning the carriage with respect to said guide in order to discharge the exceeding articles into the initial section of said selecting member.4. A device according to claim 3, including, situated above the selecting member and in a region corresponding to the initial section, an inclined channel-shaped chute, for receiving exceeding articles from said overturned carriage and conveying the exceeding articles to the selecting member.5. A device according to claim 3, wherein said overturning means include shaped cam means, engagable with a corresponding abutment element, connected to said carriage, for overturning said carriage.6. A device according to claim 5, wherein said abutment element includes an idle roller, connected to said carriage, crosswise to said guide.