The concave `or bowl structure, which is opposed to the mantle D, is supported in the following manner: E generally indicatesa ring recessed as at E1 in general conformitywith the flange A3 upon the frame A1.Silica Sand Beneficiation. "The ring E is normally held seated upon said flange as by the coil springs E2, the annular abutment E3 and the compression members E*1 which pass upwardly through the fiange A3' and the ring E and are opposite ends below the abutment E3.
Positioned within 'the ring E is the bowl supporting member, generally indicated as G. It includes the outer end generally cylindrical portion G1 which is exteriorly screwthreaded as at G2 to maintain a -screwthreaded relationship with the ,opposed threads G3 upon the ring E. G4 is ,the bowl proper, herein shown as formed integrally with the member G1 and further connected therewith as by the webs G5. G1i is a bowl liner having an exterior generally conic face G7 conforming to the interior face of the bowl G4.Small Gold Washing Plant. The bowl G4 is cut away or apertured as at G8, such apertures being formed to receive the hook shaped lugs G9 of the liner G6. G11 are U-bolts employed to securefeed lugs G9 and drawn up as by the nuts G11 against any suitable abutments G12. Note that the inner crushing surface G13 of the liner Gfi is throughout the greater part of its length parallel with, or only at a slight angle in relation to the opposed crushing surface of the mantle D. It may be somewhat outwardly flared, as at G14, in order to increase the diameter of the upper portion of the crushing zone dened -by the opposed reduced or outwardly inclined portion D4 of the mantle D.
Mounted in any suitable fashion upon the ring E are the upwardly extending supports H, upwardly screw-threaded as at H1 to receive supporting nuts H2 upon which ride supports H3`for the transverse frame structure H4. Mounted in such frame structure is a hopper H5 terminating in a chute H6 preferably fixed in relation to the hopper. telescopic adjustable chute member H7, herein shown as exterior tothe chute H6. It may include the upwardly extending 'slide H9 with which is associated a rack H10 in mesh with a pinion H11 mounted upon the transverse supporting frame H4. It will be understood that rotation of the pinion H11, as by any suitable handle H12, will raise or lower the movable chute portion H7 and thus adjust the height of the chute in relation to the top plate Ds of the head. The chute member H1 is locked in position by means of the bolt H13 and set screws H14 H14..
Positioned within 'the ring E is the bowl supporting member, generally indicated as G. It includes the outer end generally cylindrical portion G1 which is exteriorly screwthreaded as at G2 to maintain a -screwthreaded relationship with the ,opposed threads G3 upon the ring E. G4 is ,the bowl proper, herein shown as formed integrally with the member G1 and further connected therewith as by the webs G5. G1i is a bowl liner having an exterior generally conic face G7 conforming to the interior face of the bowl G4.Small Gold Washing Plant. The bowl G4 is cut away or apertured as at G8, such apertures being formed to receive the hook shaped lugs G9 of the liner G6. G11 are U-bolts employed to securefeed lugs G9 and drawn up as by the nuts G11 against any suitable abutments G12. Note that the inner crushing surface G13 of the liner Gfi is throughout the greater part of its length parallel with, or only at a slight angle in relation to the opposed crushing surface of the mantle D. It may be somewhat outwardly flared, as at G14, in order to increase the diameter of the upper portion of the crushing zone dened -by the opposed reduced or outwardly inclined portion D4 of the mantle D.
Mounted in any suitable fashion upon the ring E are the upwardly extending supports H, upwardly screw-threaded as at H1 to receive supporting nuts H2 upon which ride supports H3`for the transverse frame structure H4. Mounted in such frame structure is a hopper H5 terminating in a chute H6 preferably fixed in relation to the hopper. telescopic adjustable chute member H7, herein shown as exterior tothe chute H6. It may include the upwardly extending 'slide H9 with which is associated a rack H10 in mesh with a pinion H11 mounted upon the transverse supporting frame H4. It will be understood that rotation of the pinion H11, as by any suitable handle H12, will raise or lower the movable chute portion H7 and thus adjust the height of the chute in relation to the top plate Ds of the head. The chute member H1 is locked in position by means of the bolt H13 and set screws H14 H14..