Roller supporting means for long retracting sootblowers
AssigneeThe Babcock & Wilcox Company
InventorCharles W. Hammond
Life of this patent
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Abstract
Roller-type supporting means is disclosed herein for the lance tube of a long retracting sootblower. An assembly of four rollers is mounted in a cradle structure rockable about an axis transverse to the beam of the sootblower and also swingable about a vertical axis radial to the lance tube axis. The sides of the cradle structure are defined by rocker arms capable of limited independent rocking movement. The rollers are laterally and longitudinally spaced from each other and underengage and support the lance tube. The points of engagement between the rollers and the lance tube lie approximately in a common plane which also includes said transverse axis.
Claims14
In a long travel sootblower including a support comprising a beam, a lance tube carried by the beam for simultaneous longitudinal and angular movement to and from a cantilevered position in which it extends from one end of the beam, and roller means carried by the support appurtenant to said end of the beam for supporting the lance tube in said cantilevered position and during its movement to and from such position, the novel combination which comprises:
- a cradle assembly including
- rocker arm portions pivoted on an axis transverse to the beam and
- having end portions spaced lengthwise of the beam from and located on opposite sides of said axis, and
- a pair of rollers on each of said end portions of the cradle assembly,
- said rollers underlying and rollably engaging the lance tube at a plurality of laterally and longitudinally spaced positions.
Dependencies are inferred from the claim text.