Slag pot transfer trailer
AssigneeFord Motor Company
InventorsCharles R. Louis, Lawrence J. Ulanski
Life of this patent
Estimating the term…
Abstract
A conveyance apparatus for heavy industrial ladles, such as slag pots, is disclosed. The apparatus comprises a U-shaped frame aligned in a horizontal plane and supported on a chassis for rolling movement, the chassis employing a yoke assembly for more stable support. A lift assembly has crank arms journaled atop each leg of the frame and each have a lever arm depressable by an actuator assembly which, in turn, elevates a trunnion seat assembly carried by the lift arm of each crank. The seat assembly has engaging surfaces arranged to secure the ladle trunnions in place on the crank arms. The entire lift assembly provides an elevation silhouette no greater than the height of the ladle in the raised position.
Claims4
An apparatus for conveying large volume ladles of the type useful in heavy metallurgical industries, the apparatus comprising:
- p1 (a) a frame having a U-shaped configuration disposed in a generally horizontal plane, said U-shaped configuration defining a yoke effective to fit about the ladle to be conveyed, said yoke having legs straddling opposite sides of said ladle and effective to engage trunnions on said ladle for lifting same, the spacing between said legs being slightly greater but close to the diameter of said ladle,
- (b) a lift assembly having cranks pivotally supported on each of said legs of said yoke and extending along said opposite sides of said ladle, each crank having angled arms defining an included angle of about 120.degree., the lever arms of said crank being proportioned to provide maximum lifting with the arms maintained below the silhouette of said ladle in a lifted position.
An apparatus for conveying large volume ladles of the type useful in heavy metallurgical industries, each ladle having a pair of trunnions extending outwardly from opposite sides thereof, said apparatus comprising:
- (a) a frame defining a horizontally disposed yoke having legs effective to straddle a horizontal section of said ladle immediately beneath said trunnions,
- (b) means supporting said frame for rolling movement and supporting the upper plane of said frame at a height no greater than the mid height of said ladle when resting on the same surface upon which said support means is rolling, and
- (c) a lift assembly having commonly actuated cranks pivotally supported on each of said legs, each crank consisting of a lower arm and an upper arm with the lower arm being aligned with said frame in the nonlift position, said lower arm having a length effective to move the extremity thereof remote from the pivot a predetermined distance equivalent to the height, said ladle is desired to be raised, said upper arm having a length effective to maintain any portion thereof below the height of said ladle when the cranks and ladle are in the lift position, said upper arm making an included angle with said lower arm between 120.degree.-160.degree..
Dependencies are inferred from the claim text.