US3881663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll mill for flaking grain and the like
Assignee: Individual
•
Filing: 1974-02-14
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Granted: 1975-05-06
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Expires: 1994-02-14
Abstract
Abstract A heavy duty roller mill for flaking feed grain and the like comprises a housing for enclosing a pair of heavy rollers and auxiliary equipment such as a steaming chamber. A flexible curved plate grain flow controlling gate is mounted in the housing above the rolls. The plate is adjusted by bending effected by cam pressure. The housing is provided with a pair of horizontal slots in its side walls and a structural frame for carrying the rollers mounted in their bearing assemblies. The slots open toward one end of the mill and a removable door is provided to afford movement of the rolls into and out of position in the housing. During operation of the mill the slots are closed by removable closure plates. Readily released pivotal arms are provided for retaining the bearing assemblies in operative positions. Upon release of the bearing assembly retainers and removal of the door and the slot closure plates the rolls may roll outside the cabinet without disturbing the flow control, the steaming chamber or other equipment. A track extension is provided to support the rolls in position outside the housing.
Inventors
- 👤 Andrew M Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:18
CPC Classifications
B; B02; B02C; B02C11/00; B02C11/04; B02C4/00; B02C4/28; B02C4/32; B02C4/38
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
164 words
A dual roll mill for flaking grain or the like comprising: a housing having front, rear and side walls; the side walls of said housing having horizontal slots opening toward the front wall thereof; a pair of mill rolls having shafts extending from the ends thereof; roll supporting structure adjacent said slots; means for mounting said rolls in said housing with the shafts thereof extending through said slots, said means including bearing assemblies for said shafts and releasable means for locking said bearing assemblies in position on said supporting structure; detachable means for closing said slots; removable closure means at one end of said housing for affording when removed an open passage for said rolls; and, means providing tracks adjacent the lower sides of said slots for affording rolling movement of said roll shafts whereby upon removal of said locking means and said slot closing means and said front wall closure means said rolls may be rolled forward and out through said front wall.
Claim 2
Dependent Claim
164 words
A dual roll mill for flaking grain or the like comprising: a housing having front, rear and side walls; the side walls of said housing having horizontal slots opening toward the front wall thereof; a pair of mill rolls having shafts extending from the ends thereof; roll supporting structure adjacent said slots; means for mounting said rolls in said housing with the shafts thereof extending through said slots, said means including bearing assemblies for said shafts and releasable means for locking said bearing assemblies in position on said supporting structure; detachable means for closing said slots; removable closure means at one end of said housing for affording when removed an open passage for said rolls; and, means providing tracks adjacent the lower sides of said slots for affording rolling movement of said roll shafts whereby upon removal of said locking means and said slot closing means and said front wall closure means said rolls may be rolled forward and out through said front wall.
Claim 3
Dependent Claim
73 words
A dual roll mill for flaking grain or the like as set forth in claim 1 wherein said housing includes a base structure and said releasable bearing locking means includes structural members rotatably mounted adjacent the front ends of said side walls and movable from positions engaging the bearings of the front one of said rollers to positions engaging said base structure whereby the rolls may be rolled freely out of said slots.
Claim 4
Dependent Claim
49 words
A dual roll mill for flaking grain or the like as set forth in claim 2 including detachable means on said structural member for providing an extension of said tracks for supporting either of said rolls during movement out of said housing after removal of said front wall closure.
Claim 5
Dependent Claim
76 words
A dual roll mill for flaking grain or the like as set forth in claim 1 including front and rear bearing supports pivotally mounted on said frame on each side thereof for holding said shafts out of engagement with said tracks in one position and rotatable away from one another for lowering said shafts to said tracks upon rotation from said one position, and means for urging the front and rear bearing support toward one another.
Claim 6
Dependent Claim
32 words
A dual roll mill for flaking grain or the like as set forth in claim 4 wherein said shafts engaging said tracks between respective ends of said rolls and said bearing assemblies.
Claim 7
Dependent Claim
136 words
A dual roll mill for flaking grain and the like as set forth in claim 1 including a grain feed control assembly mounted in said housing directly above the adjacent faces of said rolls, said assembly comprising: a grain chute, one wall of which is a cylindrical flexible metal sheet extending across said housing and having its upper face convex; said sheet being rigidly secured to said housing along its upper edge and curving downwardly toward the lower end of said chute; said chute terminating above said rolls a sufficient distance to afford clearing said rolls when they are rolled from said housing; and, feed adjusting means comprising a camming mechanism for flexing said sheet from a position of maximum feed to a position of minimum feed, said sheet being biased toward said maximum feed position.
Claim 8
Dependent Claim
43 words
A dual roll mill for flaking grain and the like as set forth in claim 6 wherein said chute includes a feeder roll mounted along the lower edge of said sheet for moving the grain downwardly toward the bite of said mill rolls.
Claim 9
Dependent Claim
40 words
A dual roll mill for flaking grain and the like as set forth in claim 7 wherein the lower curved portion of said sheet presents a substantially vertical wall throughout the range of adjustment of the positions of said sheet.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |