Liquid purification or separation – Structural installation – Flume stream type
Patent
1986-09-22
1991-05-28
Fisher, Richard V.
Liquid purification or separation
Structural installation
Flume stream type
210161, 210408, 210923, C02F 140, E02B 1504
Patent
active
050192531
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to apparatus for collecting and discharging agglomerations of miscellaneous matter, for example as is to be found in the form of municipal rubbish and floating detritus on a water surface. Such matter may include cans and bottles, articles of wood, or cardboard or plastics material, ropes and cordage, weeds, textile waste, rotting substances such as household refuse and dead fish and birds and, also, viscous liquids such as bunker oils and tars.
BACKGROUND OF THE INVENTION
Apparatus for collecting and discharging waste material is known utilizing two cooperating sets of moving toothed structures, each being provided with plate-like teeth lying in parllel planes parallel to the direction of motion, and spaced, on each structure, at intervals perpendicular to those planes. The teeth of both structures are mutually intercalated in a collection zone where they are both moving in the same direction and, at positions remote from the collection zone, both structures interact with stationary combs comprising sets of blades which lie between adjacent lines of teeth, closely fitting against the sides of the teeth and their separating means to remove matter trapped between the teeth or adhering to the sides thereof. Means are also provided whereby the toothed structures, together with their comb assemblies, may become separated to permit the passage of matter which is too tough or bulky to be shredded by the teeth.
Both toothed structures may take the form of rotatably mounted shafts carrying assemblies of thin metal disc with circumferentially formed teeth, the discs being separated by relatively thick plain discs of diameter somewhat less than that at the tooth roots, all members being clamped together so that the assembly rotates as an integral unit.
Alternatively, one of the structure may be a shaft assembly as described and the other a belt type conveyor bearing lines of teeth at intervals across its width.
The foregoing structures are shown in Byers U.S. Pat. No. 4,336,137 and United Kingdom Patent No. 2,061,752 to the present inventor.
Although teeth of almost any conceivable shape may be used to create an entrapment and collecting action, difficulties arise with the prior art apparatus, e.g. as disclosed in the above mentioned patents, as the spoil enters the separating scraper zone because of the generation of a biting action on the material developed between the disc teeth and separator combs as the teeth move relative to the combs. If the parts are not sufficiently robust or the driving force is inadequate, this biting action will defeat the objective of the separator combs and result in either the machine breaking or jamming even when dealing with soft materials such as cordage or plastic bags.
SUMMARY OF THE INVENTION
It is one object of the invention to provide apparatus of the above type although not necessarily incorporating the two intercalated sets of toothed structures, wherein the cooperating teeth of the discs and separator combs are designed such that there is obviated the possibility of matter becoming trapped and jamming the machine by the cutting action between the teeth and combs, if the matter is too robust to be sheared, as would be the case with, for instance, wire or thick metal objects The necessity, as in the prior art, for providing a machine which is very powerful and furnished with hardened and ground teeth and combs is thereby eliminated.
According to the invention there is provided apparatus for collecting and discharging waste material comprising at least one rotatable shaft, a series of peripheral rows of teeth arranged on the or each shaft, the teeth in each row having side flanks delimiting a leading tooth face which is presented to the material to be collected by the teeth as the shaft rotates, material-clearing elements between the teeth in said rows, the elements having material-clearing blade edges defining a series of slits respectively between which a said one of the peripheral rows of teeth passes with the flanks there
REFERENCES:
patent: 2446772 (1948-08-01), Laughlin
patent: 3464558 (1969-09-01), Harvanek et al.
patent: 4119277 (1978-10-01), Snyder et al.
patent: 4336137 (1982-06-01), Byers
patent: 4353797 (1982-10-01), Verbandt
patent: 4521305 (1985-06-01), Deal
Byers Micharel Richard
Evans Linda S.
Fisher Richard V.
Lavine Irvin A.
LandOfFree
Apparatus for collecting and discharging waste material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for collecting and discharging waste material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for collecting and discharging waste material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-34273