EP0074935A2
Expired / Lapsed
EP
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Self-cleaning reciprocating screen
Assignee: Individual
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Filing: 1982-09-10
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Granted: —
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Expires: 2002-09-10
Abstract
Abstract Self-cleaning reciprocating screen comprising an underlying screening net "A" with a superimposed net "B" supplied with a number of longitudinal wires 3 hold by transversal. wires 2' as to the advancing direction of the material on the screen, in which the wires 3 are free to swing with the sieving vibration and beating on the underlying net "A" keep it clean.
Inventors
- 👤 Ilario Bearzot
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 01:05
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/46; B07B1/4609; B07B1/4663; B07B1/4672; B07B1/48; B07B1/50
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
97 words
Self-cleaning reciprocating screen for sieving material along its longitudinal direction by means of a vibrating machine comprising a screening net means, possibly supplied at the ends of the two opposite sides with a hooking and stretching welt means (C), characterized in that on said screening net means (A) a superimposed net means (B) is fixed, provided with a number of longitudinal wires (3) as to the advancing direction of the material to be screened, parallel between them and spaced out one another and free to vibrate as to the underlying screening net (A) with the sieving vibrations.
Claim 2
Dependent Claim
97 words
Self-cleaning reciprocating screen for sieving material along its longitudinal direction by means of a vibrating machine comprising a screening net means, possibly supplied at the ends of the two opposite sides with a hooking and stretching welt means (C), characterized in that on said screening net means (A) a superimposed net means (B) is fixed, provided with a number of longitudinal wires (3) as to the advancing direction of the material to be screened, parallel between them and spaced out one another and free to vibrate as to the underlying screening net (A) with the sieving vibrations.
Claim 3
Dependent Claim
22 words
A screen as claimed in claim 1, characterized in that each longitudinal vibrating wire (3) on the screening net (A) is ondulated.
Claim 4
Dependent Claim
40 words
A screen as claimed in the preceding claims, characterized in that each longitudinal vibrating wire (3) is supported and stretched at the respective ends (5) by means of a net weaving band (2') connected to the underlying screening net (A).
Claim 5
Dependent Claim
47 words
A screen as claimed in the preceding claims, characterized in that each longitudinal vibrating wire (3) is supported and stretched at the respective ends of the underlying screening net by means of weaving with the same weft (2) and warp (1) wires of said screening net (A).
Claim 6
Dependent Claim
76 words
A screen as claimed in the preceding claims, characterized in that the superimposed vibrating net (B),penetrates in the lateral stretching and hooking welts (C), the underlying screening net (A) through removal of a number of longitudinal wire portions (1,3) both of the underlying screening net (A) and the superimposed net ( B ) in order to hook up on one plane only transversal weft wires respectively (2,2') with the tightening (C) in the joint zone (i).
Claim 7
Dependent Claim
36 words
A screen as claimed in any preceding claim, characterized in that the weft wires (2') binding the longitudinal vibrating wiles (3) of the superimposed net (B) are bound by intermediate sets of weft transversal wires (2').
Claim 8
Dependent Claim
43 words
A screen as claimed in the preceding claim, characterized in that the intermediate binding weft wires (2') of the superimposed vibrating net (B) are sheared in sets to group a number of wires (3) in order to cause unisonous vibrations for independent groups.
Claim 9
Dependent Claim
36 words
A screen as claimed in the preceding claims, characterized in that the transversal binding band (2') of the upper vibrating net (B) is fixed on the underlying net (A) by fixing means for intermediate points (8).
Claim 10
Dependent Claim
35 words
A screen as claimed in any preceding claim, characterized in that a number of longitudinal vibrating wires (3) of the upper net (B) are provided downstream free as to the advancing direction of the material.
Claim 11
Dependent Claim
69 words
A screen as claimed in the preceding claim, characterized in that the superimposed vibrating net is made of more panels (B) than the underlying one and the respective portions are only upstream fixed (8), while in intermediate position on each of them at least one flexible cross piece (D) is provided comprising a belt (7) intercalated with a number of spacers (9) which beat on the underlying net (A).
Claim 12
Dependent Claim
45 words
A screen as claimed in the preceding claims, characterized in that the underlying screening net (A) has at least one more weaving weft wire (6) than the warp (1), in correspondence of the tightening zones of the bands (2') of the superimposed self-cleaning net (B).
Claim 13
Dependent Claim
63 words
A screen as claimed in the preceding claims, characterized in that the underlying screening net (A) is divided in several panels and is connected with the superimposed net (B) in joint zones "g" through intermediate tightening and locking means (8) in correspondence of the joint and tightening of the transversal weaving bands (2) of the superimposed vibrating panels (B). Udine, 06 Settembre 1982
References Cited (Backward Citations)
No citation records indexed.
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