Patent GB-504782-A (GB)
Title: Improvements in and relating to method of and apparatus for conveying and conditioning materials
IPC: F26B3/22
Filed: 1937-10-22
Abstract: 504,782. Jigging - conveyers ; reciprocating motors ; cooling and drying granular materials ; motors. TRIGGS, W. W. (Traylor Vibrator Co.) Oct. 22, 1937, No. 28856. [Class 78 (i)] [Also in Groups XIII and XXXV] In means for heating or cooling powdered or granular materials, the material is delivered to a surface to which is imparted vibratory movement having both a vertical and a horizontal component and at such high frequency that the'material is conveyed along the surface. in the form of an unstratified fluidlike bed, and the conditioning medium is supplied to effect a conditioning of the material while it is being conveyed. Figs. 1 and 2 show a cooling installation in which the material is treated during conveyance along a deck A which is jigged by vibratory electromagnetic motors B. The deck is in the form of a trough 21, Fig. 3, having side walls 23 and an arcuate bottom. 24, and containing a material supporting plate 26. The cooling fluid, such as water, is supplied through a pipe 27 provided with spray nozzles 28 and supported near its ends in adjustable brackets 32, 33 mounted on standards 30, 31. Freedom of movement of the trough with respect to the pipe is allowed by including flexible sleeves 43 in the connection between the end walls of the former and the latter. The walls 23 are connected by a flexible web 51 of canvas or rubber to longitudinal angle members 50 which are attached to plates 47 adjustably mounted on standards 46. This web connection extends also across the ends of the trough. A cover plate 54 is hinged to one of the members 50. The main frame 57, Fig. 4, of each motor is a very heavy casting with an opening 58 adapted to receive a series of spring leaves 59 separated by spacers 63, 70. The leaves are clamped near the ends by screws 62 between bosses 60 on the main frame and plates 61. At their centres the leaves are clamped to the armature shaft 64 between a boss 66 and a plate 69 by screws 67. The armature 73 formed of laminated sheet steel is bolted to brackets 72 on the shaft 64. Brackets 75,on the shaft 64 are connected by bolts to brackets 77 on the trough 21. A single bracket 78 may be used in addition to connect the trough and armature shaft. The main frame 57 is flexibly supported on standards 81 which are mounted on coil springs 82 attached to base plates 84. Spaced U- brackets 86 attached to the frame 57 support a U-shaped magnetic field core 87, preferably of laminated steel plates. Field coils 90, connected either in series or parallel, surround each leg of the core 87, and are adjustably supported on the brackets 86 by threaded sleeves 93. In a modification the plate 26, Fig. 3, is replaced by a shallow trough with inclined sides. In another modification the material is conveyed in an uncovered trough 100, Fig. 11, extending downwardly from which are longitudinal and transverse flanges 103, 104. Each compartment formed by the flanges is provided with cooling means comprising a pipe 105 and a plurality of spray nozzles 106. Valves for the individual control of each pipe may be provided. Specification 494,206 is referred to.