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betsy stone

Gypsum powder product line in quarry - 1 views

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started by betsy stone on 06 Aug 14
  • betsy stone
     
    The gear housing 44 is further provided with a downwardly projecting hub 52 concentric with the shaft means and rigidly secured to the upper end of the outer tubular shaft by means of pins 54, while the lower end of the shaft means 22 and 24 is mounted in a combination radial and thrust bearing 56 adjacent the lowermost portion of the base 4. Leakage between the outer hollow shaft 2,gypsum powder plant4 and stationary tub 6 is prevented where the shaft means traverses the tub at the crowned opening 20, by means of a resilient spring biased seal or boot 58 having upper and lower sealing surfaces adapted to engage the lower portion of the hub 52 and an upstanding portion on the stationary tub, about the opening I8, respectively.

    The combined radial and thrust bearing 56 provides the sole support for the rotatable tub l which is free to tilt thereabout at which time the tub is capable of moving laterally. Accordingly, means are provided to maintain the tub in` a substantially vertical position during the washing operation and, although it is notl absolutely necessary stone quarry machinery, it is desirable to have the means act to aid in centering the same when the tub is rotated. In this instance, a plurality of oppositely disposed, preferably four, centering springs 60 disposed at an angle to produce a component of force axially of the shaft means, in addition to the centering action, are connected at one of their ends to the bottom of the stationary tub 6 and the opposite ends are connected to a damper housing 62 disposed adjacent to and beneath the bottom of the stationary tub. This damper housing is also disposed concentric with and journalled on the outer shaft 24 and moves laterally therewith.

    The agitator 8, disposed within the rotatable tub 2, is formed with a haring base or body portion 64 extending downwardly and outwardly about the hub 36 to underlie the clothes, and has one or more blades 66 extending radially upwardly and outwardly from the upper portion of the base adapted to agitate the liquid within the tub upon oscillation of the agitator for effecting the washing operation. The agitator is further provided with a center-post 68 disposed on the vertical axis of the tub and extends upwardly above the normal liquid level within the tub. Also, the outer periphery 10 of the base 64 preferably extends outwardly and covers the inner end 12 of the bottom wall 74 of the inner tub 28 to prevent fabrics from entering thereunder.

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