US3601265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blank stacking, straightening and delivery means
Assignee: S&S Corrugated Paper Machinery Co Inc
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Filing: 1968-11-27
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Granted: 1971-08-24
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Expires: 1988-11-27
Abstract
Abstract Apparatus for stacking and straightening folded tubular boxes is constructed with a front barrier, which arrests forward box movement, having offset upper and lower vertical portions with the lower portion having a downward and rearwardly inclined section at the bottom thereof. A longitudinally oscillating slapper bar for engaging the rear of the stack is positioned opposite the vertical sections of the barrier and is disposed above the incline in the barrier. The inclined portion of the front barrier serves to prevent excessive buildup of weight in the stack from impeding the entry of boxes being fed to the bottom of the stack. Lift screws prevent excessive buildup of weight at the rear of the stack while oscillating roller means engaging the stack from below prevent excessive buildup of weight at the front of the stack. A roller device movable with the front barrier supports the continuous belt means which delivers folded boxes to the stacking section and supports the upper flight of this belt means in the critical area adjacent the front barrier. Additional roller means are selectively positionable to support additional portions of the delivery belt as required. Mounting for the roller means is such that they are automatically moved to retracted positions as the barrier means moves past in adjusting the apparatus for operation on shorter boxes. A slat hinged at one end thereof and supporting a roller acts to exert a downward force on the stack of boxes in the stacker with the roller being positioned toward the rear of the stack to prevent the portion of the stack engaged by lift screws from rising faster than the leading edge of the stack and thereby tipping the leading edge downward to impede takeoff. Another member also exerts a downward force on the stack primarily at the rear thereof. This member is maintained in a horizontal position by means of parallel linkages in an effort to maintain the folded boxes in the stack in horizontal position.
Inventors
- 👤 Albert F Shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:18
CPC Classifications
B; B65; B65H; B65H31/00; B65H31/34; B65H31/36; B65H29/00; B65H29/38; B65H29/42; B65H2701/00; B65H2701/10; B65H2701/17; B65H2701/176; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
259 words
In combination, a machine for operating on box blanks and delivery apparatus adapted for use with said machine; said apparatus comprising a stacking means and a conveyor means for moving blanks issuing from said machine forward along a generally horizontal feed path to said stacking means; said stacking means constructed to form an underfed stack of those blanks issuing from said machine and including a first means providing a barrier means positioned forward of an entrance to said stacking means; said barrier means extending generally vertically above said feed path and positioned to engage leading edges of blanks moving along said feed path to thereby arrest forward movement of these blanks; means mounting said barrier means for adjustment by forward and rearward movement relative to said feed path, said conveyor means including continuous belt means extending forward of said barrier means; roller means; arm means; said roller means mounted on a rotational axis at one end of said arm means; said arm means being pivotally mounted at the other end thereof to pivot means extending parallel to the rotational axis of said roller means; said arm means being movable about said pivot means for selective operation of said roller means between discrete operative and inoperative positions with said inoperative position being below said operative position; said roller means when in said operative position being positioned between said entrance and said barrier means, and supporting an upper flight portion of said belt means from below; said roller means when in said inoperative position being ineffective to support said belt means.
Claim 2
Dependent Claim
259 words
In combination, a machine for operating on box blanks and delivery apparatus adapted for use with said machine; said apparatus comprising a stacking means and a conveyor means for moving blanks issuing from said machine forward along a generally horizontal feed path to said stacking means; said stacking means constructed to form an underfed stack of those blanks issuing from said machine and including a first means providing a barrier means positioned forward of an entrance to said stacking means; said barrier means extending generally vertically above said feed path and positioned to engage leading edges of blanks moving along said feed path to thereby arrest forward movement of these blanks; means mounting said barrier means for adjustment by forward and rearward movement relative to said feed path, said conveyor means including continuous belt means extending forward of said barrier means; roller means; arm means; said roller means mounted on a rotational axis at one end of said arm means; said arm means being pivotally mounted at the other end thereof to pivot means extending parallel to the rotational axis of said roller means; said arm means being movable about said pivot means for selective operation of said roller means between discrete operative and inoperative positions with said inoperative position being below said operative position; said roller means when in said operative position being positioned between said entrance and said barrier means, and supporting an upper flight portion of said belt means from below; said roller means when in said inoperative position being ineffective to support said belt means.
Claim 3
Dependent Claim
164 words
A combination as set forth in claim 1 also including other roller means positioned forward of said roller means; other arm means; said other roller means mounted on a rotational axis at one end of said arm means; said other arm means being pivotally mounted at the other end thereof to other pivot means extending parallel to both of said rotational axes; said other arm means being movable about said other pivot means for selective operation of said other roller means between discrete operative and inoperative positions with the inoperative position for said other roller means being below the operative position therefor; said other roller means when in its said operative position being positioned between said barrier means and said entrance, and supporting another upper flight portion of said belt means from below; said other roller means when in its said inoperative position being ineffective to support said belt means; said arm means and said other arm means being movable independently of each other.
Claim 4
Dependent Claim
207 words
In combination, a machine for operating on box blanks and delivery apparatus adapted for use wit said machine; said apparatus comprising a stacking means And a conveyor means for moving blanks issuing from said machine forward along a generally horizontal feed path to said stacking means; said stacking means constructed to form an underfed stack of those blanks issuing from said machine and including a first means providing a barrier means positioned forward of an entrance to said stacking means; said barrier means extending generally vertically above said feed path and positioned to engage leading edges of blanks moving along said feed path to thereby arrest forward movement of these blanks; means mounting said barrier means for adjustment by forward and rearward movement relative to said feed path, said conveyor means including continuous belt means extending forward of said barrier means; roller means; means mounting said roller means for selective operation between an inoperative position below an operative position wherein said roller means supports an upper flight portion of said belt means from below; a roller device in the region of said barrier means and connected thereto for forward and rearward movement therewith; said roller device supporting an upper flight portion of said belt means from below.
Claim 5
Dependent Claim
207 words
In combination, a machine for operating on box blanks and delivery apparatus adapted for use wit said machine; said apparatus comprising a stacking means And a conveyor means for moving blanks issuing from said machine forward along a generally horizontal feed path to said stacking means; said stacking means constructed to form an underfed stack of those blanks issuing from said machine and including a first means providing a barrier means positioned forward of an entrance to said stacking means; said barrier means extending generally vertically above said feed path and positioned to engage leading edges of blanks moving along said feed path to thereby arrest forward movement of these blanks; means mounting said barrier means for adjustment by forward and rearward movement relative to said feed path, said conveyor means including continuous belt means extending forward of said barrier means; roller means; means mounting said roller means for selective operation between an inoperative position below an operative position wherein said roller means supports an upper flight portion of said belt means from below; a roller device in the region of said barrier means and connected thereto for forward and rearward movement therewith; said roller device supporting an upper flight portion of said belt means from below.
Claim 6
Dependent Claim
40 words
A combination as set forth in claim 3 in which said roller device is positioned so that upon rearward movement of said barrier means said roller device may engage said roller means and operate the latter to said inoperative position.
Claim 7
Dependent Claim
191 words
In combination, a machine for operating on box blanks and delivery apparatus adapted for use with said machine; said apparatus comprising a stacking means and a conveyor means for moving blanks issuing from said machine forward along a generally horizontal feed path to said stacking means; said stacking means constructed to form an underfed stack of those blanks issuing from said machine and including a first means providing a barrier means extending generally vertically above said feed path and positioned to engage leading edges of blanks moving along feed path to thereby arrest forward movement of these blanks; means mounting said barrier means for adjustment by forward and rearward movement relative to said feed path; said conveyor means including continuous belt means extending forward of said barrier means; additional means connected to said barrier means for movement therewith and having a portion positioned rearward of said barrier means and forward of an entrance to said stacking means; means for oscillating said portion between a first position slightly above said feed path and a second position no higher than said feed path whereby said portion lifts blanks supported on said belt means.
Claim 8
Dependent Claim
191 words
In combination, a machine for operating on box blanks and delivery apparatus adapted for use with said machine; said apparatus comprising a stacking means and a conveyor means for moving blanks issuing from said machine forward along a generally horizontal feed path to said stacking means; said stacking means constructed to form an underfed stack of those blanks issuing from said machine and including a first means providing a barrier means extending generally vertically above said feed path and positioned to engage leading edges of blanks moving along feed path to thereby arrest forward movement of these blanks; means mounting said barrier means for adjustment by forward and rearward movement relative to said feed path; said conveyor means including continuous belt means extending forward of said barrier means; additional means connected to said barrier means for movement therewith and having a portion positioned rearward of said barrier means and forward of an entrance to said stacking means; means for oscillating said portion between a first position slightly above said feed path and a second position no higher than said feed path whereby said portion lifts blanks supported on said belt means.
Claim 9
Dependent Claim
37 words
A combination as set forth in claim 5 in which there is a means for manually operating said portion to a third position to raise blanks from said belt means to a position above said barrier means.
Claim 10
Dependent Claim
27 words
A combination as set forth in claim 5 in which said portion is oscillated through a plurality of cycles for each blank delivered to said stacking means.
References Cited (Backward Citations)
US2391170A
Cited
US3063577A
Cited
US3030867A
Cited
US3212774A
Cited
US3203561A
Cited
US3387719A
Cited
US3387720A
Cited
US3409148A
Cited
US3420387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |