Abstract A number of vibratory separator screens which are each assembled in accordance with a multi-stage tensioning method. One specific separator screen, for example, comprises a frame including a continuous groove formed therein and into which a segment of a cloth of desired mesh is driven to thereby mount said cloth to the frame at a desired level of tension. A multi-stage tensioning method for assembling the specific separator screen above described comprises the steps of tensioning the cloth to a level of tension less than said desired level of tension; positioning the cloth over the frame with a segment of the cloth covering the groove; driving the cloth segment into the groove thereby further tensioning the screen to said desired level; and bonding the screen to the frame at said desired level of tension. An apparatus for assembling the specific separator screen above described comprises means for tensioning a cloth of desired mesh to a level of tension less than a desired level, and means for driving a segment of the cloth into a continuous groove of a frame thereby further tensioning the cloth on the frame to said desired level of tension.
A vibratory screen comprising: a frame having an aperture therein and a surrounding member having an inner most peripheral portion which defines said aperture, said surrounding member having a continuous peripheral groove therein; a foraminous cloth spanning said aperture and mounted to the frame at a predetermined level of tension capable of withstanding a predetermined level of imparted vibration, said cloth having a segment thereof disposed in said groove substantially along the inner peripheral walls defining said groove, a spline wedged in said groove, said cloth segment being disposed between said spline and said groove peripheral walls and wedged there between to at least initially provide said predetermined tension level, said walls comprising a bottom wall and a pair of upstanding side walls and means disposed along at least said groove bottom wall for fixedly bonding the cloth segment wedged within said groove to the frame to thereby maintain the cloth at said initially provided predetermined level of tension.
Claim 2
Dependent Claim
159 words
A vibratory screen comprising: a frame having an aperture therein and a surrounding member having an inner most peripheral portion which defines said aperture, said surrounding member having a continuous peripheral groove therein; a foraminous cloth spanning said aperture and mounted to the frame at a predetermined level of tension capable of withstanding a predetermined level of imparted vibration, said cloth having a segment thereof disposed in said groove substantially along the inner peripheral walls defining said groove, a spline wedged in said groove, said cloth segment being disposed between said spline and said groove peripheral walls and wedged there between to at least initially provide said predetermined tension level, said walls comprising a bottom wall and a pair of upstanding side walls and means disposed along at least said groove bottom wall for fixedly bonding the cloth segment wedged within said groove to the frame to thereby maintain the cloth at said initially provided predetermined level of tension.
Claim 3
Dependent Claim
29 words
The screen of claim 1, wherein the bonding means includes an adhesive bonding agent disposed within the groove and bonding the cloth segment to the frame within the groove.
Claim 4
Dependent Claim
25 words
The screen of claim 2, wherein the bonding agent and cloth segment are disposed substantially along the entire length of the groove inner peripheral walls.
Claim 5
Dependent Claim
41 words
The screen of claim 2, wherein a portion of the frame is fabricated of a heat deformable material and wherein the screen further includes bonding means for bonding another segment of said cloth by embedding said other segment in said portion.