Classifying – separating – and assorting solids – Sifting – Elements
Patent
1984-11-14
1987-04-28
Bashore, S. Leon
Classifying, separating, and assorting solids
Sifting
Elements
209405, 209408, 209412, 52476, 52507, 52668, B07B 104, E04C 504
Patent
active
046612459
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a new and improved modular screening system for use in screening machines.
Modular screening systems are known and were developed to overcome the problem of localised wear in a continuous screening mat which was used in such machines.
The present invention provides an improved modular screening system for use with screening machines.
SUMMARY OF THE INVENTION
In accordance with the present invention there is provided a modular screening system which includes: a plurality of screening modules supported on clamping bars secured to and positioned across a screening machine in parallel space relationship, said modules having a peripheral portion defined by side and end walls and a plurality of opening extending through said modules inwardly of the peripheral portion, the side and end wall of the modules being provided with inter engaging means which interlock with longitudional and transverse channels in said clamping bars to secure said modules in position in the machine.
According to one embodiment the interengaging means comprises protuberances on the side and end walls of each module.
In a modification the interengaging means comprises protuberances on the inside faces of the side walls of the modules and a transverse rail interlocked with the end walls of the modules.
The invention will be now more particularly described with reference to the preferred embodiments shown in the accompanying drawings.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded respective view illustrating two modules and two clamping bars according to one embodiment of the invention;
FIG. 2 is a diagramatic plan view of an assembly of modules;
FIG. 3 is a diagramatic side view in the direction of the arrow III on FIG. 2;
FIG. 4 is a detailed cross sectional view on line IV--IV of the modules of FIG. 2;
FIG. 5 is a detailed sectional view on line V--V of FIG. 2;
FIG. 6 is a perspective view of the under sides of a module and
FIG. 7 is a perspective view similar to FIG. 1 illustrating another embodiment of the invention.
DETAILED DESCRIPTION OF THE INVENTION
Referring now to the drawings. The screening module is designated generally by the reference 1. It is preferably made from polyurethane and has ends 2 and 3 and sides 4 and 5 defining the peripheral portion of the module. The module is conventiently formed in a molding operation, the peripheral portion is provided with reinforcement preferably in the form of steel strips or bars 6 and 7 and in addition the module is provided with a plurality of openings formed by longitudinal members 8 and transverse members 9. These members may be provided with reinforcement in the form of reinforcing bars embedded in the longitudinal member 8 and transverse members 9. The size of the openings will be selected to suit the particular requirements of the material to be screened.
As illustrated in FIG. 1 adjoining modules are designed to interlock one with the other and to be firmly and accurately supported on clamping bars 16 in such a manner which will prevent small pieces of aggregate, dust particles and water from penetrating between mating services thereby minimising wear. To this end each end wall 2 is provided with a longitudionally extending protuberance 10 while the opposite end 3 is provided with a longitudionally extending channel 11 as clearly shown in FIG. 5. The channel 11 is so shaped and dimensioned as to accurately accommodate and mate with the protuberance 10 of an adjoining module as illustrated in FIG. 5.
The end walls 2 and 3 each include an integral skirt portion 12 which extend below the bottom edge of the side walls 4 and 5 illustrated in FIG. 6. The inner face 13 of this skirt is provided with an arcuate shape protuberance 14 (FIG. 6). Whilst it is possible for these protuberances to extend throughout the length of the skirt it is preferred that they only extend for such a length as to be completely accommodated in a transverse channel designated generally by the reference 15 in the clamping bar 16 as illustrated in FIG. 1. The inner f
REFERENCES:
patent: 1085043 (1914-01-01), Hodgdon
patent: 1856450 (1932-05-01), Xistris
patent: 2068413 (1937-01-01), Hunsicker
patent: 2073130 (1937-03-01), Wallace
patent: 2082241 (1937-06-01), Bennett
patent: 2105245 (1938-01-01), Hohl
patent: 2740525 (1956-04-01), Wehner
patent: 4120784 (1978-10-01), Hassall
patent: 4219412 (1980-08-01), Hassall
patent: 4265742 (1981-05-01), Bucker et al.
patent: 4383919 (1983-05-01), Schmidt
patent: 4409099 (1983-10-01), Wolff
Rutherford William
Tinson David J.
Bashore S. Leon
Fioris Pty Ltd.
Lithgow Thomas M.
LandOfFree
Screening system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Screening system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Screening system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-475867