US3905485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll changing device for a rolling mill and the like
Assignee: United Engineering Inc
•
Filing: 1974-03-27
•
Granted: 1975-09-16
•
Expires: 1994-03-27
Abstract
Abstract The disclosure of this invention relates to a rail guided car adapted to be located on the operator''s side of the rolling mill for engaging the adjacent end of a set of work rolls of the mill for removing and replacing the roll set relative to the mill. The car supports the rolls in a cantilever fashion and includes a counterweight which is readily and accurately adjustable to permit accurate control of the roll set when being lowered in the mill. The car also includes a linkage system for the member that engages the ends of the rolls for assuring that the rolls are maintained parallel to a desired plane even though the rolls are adjustable while carried by the car.
Inventors
- 👤 Charles Storer Shumaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:01
CPC Classifications
B; B21; B21B; B21B31/00; B21B31/08; B21B31/10; B21B31/103; Y; Y10; Y10S; Y10S414/00; Y10S414/124
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
177 words
An apparatus for removing and replacing a roll to and from a rolling mill or the like, comprising: a car arranged on the operator''s side of said mill, said car including a member at its end adjacent to the mill for cantileverly supporting a roll in a position parallel to its working position when the roll is in said mill, said car including a counterweight arranged to offset at least a part of the weight of said roll when supported by said member, means for pivotally supporting said counterweight, linkage means for connecting said counterweight to said member in order that vertical movement of said counterweight is translated to said member, means for effecting said vertical movement of said counterweight comprising a piston cylinder assembly, means for restricting the upper movement of said counterweight comprising a mechanical jack having a stop means, means for mounting said mechanical jack on said counterweight for movement therewith, and said stop means of said mechanical jack constructed and arranged for contacting with said car on said upper movement of said counterweight.
Claim 2
Independent Claim
177 words
An apparatus for removing and replacing a roll to and from a rolling mill or the like, comprising: a car arranged on the operator''s side of said mill, said car including a member at its end adjacent to the mill for cantileverly supporting a roll in a position parallel to its working position when the roll is in said mill, said car including a counterweight arranged to offset at least a part of the weight of said roll when supported by said member, means for pivotally supporting said counterweight, linkage means for connecting said counterweight to said member in order that vertical movement of said counterweight is translated to said member, means for effecting said vertical movement of said counterweight comprising a piston cylinder assembly, means for restricting the upper movement of said counterweight comprising a mechanical jack having a stop means, means for mounting said mechanical jack on said counterweight for movement therewith, and said stop means of said mechanical jack constructed and arranged for contacting with said car on said upper movement of said counterweight.
Claim 3
Dependent Claim
35 words
An apparatus according to claim 1 wherein said jack and stop means are so arranged that operation of said jack will bring about a raising of said counterweight and an accurate lowering of said member.
Claim 4
Dependent Claim
54 words
An apparatus according to claim 1 wherein said piston cylinder assembly is a single action piston cylinder assembly constructed and arranged so that its piston will limit the extent to which said counterweight is lowered and wherein the weight of said counterweight is made to exceed the weight of said member and said roll.
References Cited (Backward Citations)
US1856082A
Cited
US2314686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |