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Patent US3731785A successfully refreshed from Google Patents.
US3731785A
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US
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Method and apparatus for forming tyne layers in automatic brick stacking systems
Assignee: Forrest Paschal Machinery Co
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Filing: 1972-05-01
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Granted: 1973-05-08
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Expires: 1992-05-01
Abstract
Abstract Double-layer courses of bricks, with the bricks in one layer atop the bricks in the other layer, are marshalled along an index conveyor between a kiln car unstacking apparatus and a brick stacking and strapping apparatus. A pickup head is lowered to a position overlying selected courses and a first set of gripper members is activated to grip the entire upper layer while a second set of grippers, independently operated from the first set, is activated to grip selected bricks in the lower layer, the selected brick being those necessary to form the tyne openings. The pickup head is then moved vertically and horizontally to a second position where selected brick from the lower layer are deposited on a tyne brick table. The pickup head is then moved to a third position where the upper level of brick is returned to its initial position atop the lower level in the same selected course. During the pickup and depositing of the upper layer and selected bricks from the lower layer, a separator sheet or board is placed atop the lower layer either automatically or manually.
Inventors
- 👤 G Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:49
CPC Classifications
B; B65; B65G; B65G57/00; B65G57/02; B65G57/16; B65G57/20; B65G57/22; B65G57/26
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
129 words
Apparatus for automatically forming voids in the lower layer of a double-layer course of articles, each article having a predetermined length and width, proceeding along an index conveyor, said apparatus including: a frame having frame moving means associated therewith for moving said frame from a position removed from said doublelayer course to a gripping position overlying said double-layer course; a first set of gripper members depending from said frame and engageable with the articles in the upper layer of said course; a second set of gripper members depending from opposite sides of said frame, extending beloW said first set and engageable with opposite ends of some selected articles only in the lower layer of said course; said first and second sets of grippers being operable independently of each other.
Claim 2
Dependent Claim
129 words
Apparatus for automatically forming voids in the lower layer of a double-layer course of articles, each article having a predetermined length and width, proceeding along an index conveyor, said apparatus including: a frame having frame moving means associated therewith for moving said frame from a position removed from said doublelayer course to a gripping position overlying said double-layer course; a first set of gripper members depending from said frame and engageable with the articles in the upper layer of said course; a second set of gripper members depending from opposite sides of said frame, extending beloW said first set and engageable with opposite ends of some selected articles only in the lower layer of said course; said first and second sets of grippers being operable independently of each other.
Claim 3
Dependent Claim
37 words
The apparatus according to claim 1 and further including a tyne brick table, said frame moving means also adapted to move said frame from said gripping position to a first release position above said tyne brick table.
Claim 4
Dependent Claim
32 words
The apparatus according to claim 2 wherein said frame moving means further moves said frame from said first release position to a second release position above said conveyor overlying said lower layer.
Claim 5
Dependent Claim
64 words
The apparatus according to claim 3 wherein said frame moving means comprises a carriage reciprocally movable above said conveyor along a path parallel to the path of movement thereof between said gripping positions and said first and second release positions, and a cylinder means attached to said carriage with the piston thereof vertically oriented and having said frame attached to the free end thereof.
Claim 6
Dependent Claim
36 words
The apparatus according to claim 1 wherein said first set of gripper members depend from opposite sides of said carriage and apply sufficient pressure on the ends of said articles to lift the entire upper layer.
Claim 7
Dependent Claim
26 words
The apparatus according to claim 5 wherein said second set of gripper members is separate from said first set and operated by a separate activating means.
Claim 8
Independent Claim
122 words
A method of forming the tyne layer in a stack of articles formed of a plurality of courses of said articles comprising the steps of: a. forming double-layer courses of articles on a conveyor carrying the articles to a stacking machine; b. at a first position in predetermined courses, simultaneously lifting the entire upper layer and selected articles in the lower layer, said selected articles in the lower layer being those to be removed to form tyne openings in said lower layer; c. depositing said selected articles from said lower layer on an auxiliary surface; d. placing a separator sheet on the remaining bricks in said lower layer; and e. replacing said upper layer on said separator sheet atop said lower layer.
Claim 9
Independent Claim
122 words
A method of forming the tyne layer in a stack of articles formed of a plurality of courses of said articles comprising the steps of: a. forming double-layer courses of articles on a conveyor carrying the articles to a stacking machine; b. at a first position in predetermined courses, simultaneously lifting the entire upper layer and selected articles in the lower layer, said selected articles in the lower layer being those to be removed to form tyne openings in said lower layer; c. depositing said selected articles from said lower layer on an auxiliary surface; d. placing a separator sheet on the remaining bricks in said lower layer; and e. replacing said upper layer on said separator sheet atop said lower layer.
References Cited (Backward Citations)
US3039593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |