US3733750A - Air release lid - Google Patents

Air release lid Download PDF

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Publication number
US3733750A
US3733750A US00209714A US3733750DA US3733750A US 3733750 A US3733750 A US 3733750A US 00209714 A US00209714 A US 00209714A US 3733750D A US3733750D A US 3733750DA US 3733750 A US3733750 A US 3733750A
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Prior art keywords
bracket
arm
lid
silo
rib
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Expired - Lifetime
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US00209714A
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S Hege
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/22—Safety features
    • B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
    • B65D90/34—Venting means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
    • E05F1/1066—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a traction spring
    • E05F1/1075—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a traction spring for counterbalancing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/60—Application of doors, windows, wings or fittings thereof for other use
    • E05Y2900/602—Application of doors, windows, wings or fittings thereof for other use for containers

Definitions

  • ABSTRACT The air release lid for sealed silos has a bracket secured on the silo roof disposed radially inwardly of the opening therein. An arm is pivoted on the bracket adjacent the lower end thereof, the arm terminating at [22] Filed:
  • This invention is a novel air release lid for sealed silos adapted to be mounted on the roof of the silo, the lid being adapted to be opened during the period that silage is being blown by the customary silage blower into another opening in thetop of the silo in order to permit escape of excess air introduced into the silo during the filling operation by the blower, the air release lid being adapted to tightly close theair release opening in the silo roof after the filling operation has been completed in order to normally maintain a substantially sealed atmosphere within the silo.
  • Another object of the invention is to provide such air release valve with means whereby the opening and closing of the air release lid may be controlled from a position adjacent the ground level of the silo, thereby obviating the necessity of the farmer having to climb to the top of the silo whenever the air release vale is to be opened or closed.
  • FIG. 1 is a perspective view of my novel air release lid installed on the roof of a silo adjacent the edge thereof.
  • FIG. 2 is a vertical section through the air release lid and the adjacent portions of the silo, showing the lid in normal closed position.
  • FIG. 3 is a view similar to FIG. 2 showing the lid in raised position to permit escape of excess air from the interior of the silo during the filling operation.
  • the silo is provided with a roof R having adjacent its edge portion a filling opening surrounded by an upstanding rib R.
  • the opening may be of any desired shape or size but inmost instances would be circular as would be the surrounding rib R.
  • an upstanding bracket consisting of a pair of spaced parallel bars 1 of rectangular crosssection, as shown in FIG. 1, extending from a base bar 2 which is secured by screws 3 or the like to the upper side of the roof R, as shown in FIG. 1, the bracket 1 being disposed radially inwardly of the roof R with respect to the rib R.
  • An arm 4a is pivotally mounted at one end on a bolt 5 extending through aligned perforations in the end of the arm 4 and through the upright bars 1-1 of the bracket, so that the arm can pivot freely, the outer end of the arm 4 terminating at approximately the center of the circular rib R", as shown.
  • a coil spring 6 is provided having one end secured in perforation 7 in the upper ends of the bars 1 of the bracketand its other end secured in a perforation 4a adjacent the outer end of arm 4, whereby the spring 6 will normally tend to pivot the arm 4 upwardly with respect to the roof R, for the purpose hereinafter set forth.
  • a pair of spaced parallel bars 11 are fixedly secured to the outer end of arm 4 normally to the axis of arm 4, said bars 1 1 extending above and below said arm 4.
  • the-lid. 8 is provided with-aplate 9 secured by screws 10 or the like to the upper face of the lid 8, the plate 9 carrying at the centerof the lid 8 an upstanding lug 94 disposed between the lower ends of the bars 11, and a bolt 12 passes through aligned perforations in the lower end of the bars 11 and through the lug 9a, as shown in FIG. 1, whereby the lid 8 may pivot on the bolt 12 with respect to the axis of the arm 4, the outer end of which arm 4 extends between the bars 11 and is fixedly secured thereto in any desired manner sothat the axis of the bars 11 will remain normal to the longitudinal axis of the arm 4 at all times.
  • the spring 6 normally tends to raise the arm 4 to unseat the lid 8 from the rib R, to permit excess air within the silo to escape through the air release opening in the roof R of the silo.
  • the lid 8 may be closed and maintained closed by means of a cable 13 which has one end engaged in perforations 11a in the upper ends of the pair of bars 11, the cable 13 passing in substantial alignment with the axis of thearm 4 to the edge of the silo roof R and over a pulley 14 carried by a bracket 15 secured to the upper edge of the silo, the cable 13 passing downwardly to a customary lever (not shown) on the side of the silo disposed 4 or 5 feet above ground level, the customary lever being adapted to be locked in lowered position so that when the customary lever is swung downwardly the cable l3 is drawn taut, and when the customary lever is locked in down position the tautness in the cable 13 will maintain the
  • the air release valve is operable from the ground level it is not necessary that the farmer climb to the top of the silo each time he desires to open or close the air release valve in the top of the silo.
  • the release lid 8 can be made of metal or any other desired material, and the dimensions and shape can be varied to suit the desired size and shape of the air release opening in the silo roof R.
  • An air release lid for sealed silos having an air opening in the silo roof surrounded by a raised rib, comprising a bracket secured on said roof and disposed radially inwardly of said rib; an arm pivoted on said bracket adjacent the lower end thereof, said arm terminating at substantially the center of said rib; a spring connecting the upper end of said bracket with the outer end portion of said arm for normally urging the arm to swing upwardly; a second bracket disposed normal to the axis of the arm and fixedly secured intermediate its ends to the outer end of said arm; a lid of same shape as but larger than said rib pivotally connected to the lower end of said second bracket; and a cable extending from the upper end of said second bracket radially across the silo roof and down the side of the silo and adapted to be locked when the cable is drawn taut, thereby maintaining the lid tightly seated upon said rib.
  • said first bracket comprising a base bar adapted to be secured to said roof, and a pair of spaced parallel bars extending upwardly from said base bar receiving between them the end of said arm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Storage Of Harvested Produce (AREA)

Abstract

The air release lid for sealed silos has a bracket secured on the silo roof disposed radially inwardly of the opening therein. An arm is pivoted on the bracket adjacent the lower end thereof, the arm terminating at substantially the center of said opening. A spring connects the upper end of the bracket with the outer end portion of the arm for normally urging the arm to swing upwardly. A second bracket is disposed normal to the arm and fixedly secured intermediate its ends to the outer end of the arm. A lid of same shape as but larger than the opening is pivotally connected to the lower end of the second bracket; and a cable extends from the upper end of the second bracket radially across the silo roof and down the side of the silo and is adapted to be locked when the cable is drawn taut, thereby maintaining the lid tightly seated across the opening.

Description

1 1 3,733,750 1 51 May 22,1973
United States Patent 1191 Hege I [54] AIR RELEASE LID Primary Examiner-Kenneth Downey Att0rney-Alexander & Dowell [76] Inventor: Sanford L. Hege, R.D. No. 2, Chambersburg, Pa. 17201 Dec. '20, 1971 Appl. No.: 209,714
[57] ABSTRACT The air release lid for sealed silos has a bracket secured on the silo roof disposed radially inwardly of the opening therein. An arm is pivoted on the bracket adjacent the lower end thereof, the arm terminating at [22] Filed:
v 1, 2 92 9mwm39 13 wus -M4 9 1 0 9 3 2 2 U 5 M72 n3 7 0/. 3 97 44 9 m A I U "0 u "m m n n m m m WM 1 u S I h W d U IF 1 111 2 18 5 55 [56] References Cited UNITED STATES PATENTS 938,593 11/1909 Laubeuf .............................49/379 x the and down the we the and adapted to be locked when the cable is drawn taut,
FOREIGN PATENTS OR APPLICATIONS thereby maintaining the lid tightly seated across the opening.
10/1964 France 4 Claims, 3 Drawing Figures PATENTED 3. 733.750
IN VENTOR SANFORD L. HEGE ATTORNEK AIR RELEASE up DESCRIPTION OF INVENTION This invention is a novel air release lid for sealed silos adapted to be mounted on the roof of the silo, the lid being adapted to be opened during the period that silage is being blown by the customary silage blower into another opening in thetop of the silo in order to permit escape of excess air introduced into the silo during the filling operation by the blower, the air release lid being adapted to tightly close theair release opening in the silo roof after the filling operation has been completed in order to normally maintain a substantially sealed atmosphere within the silo.
Another object of the invention is to provide such air release valve with means whereby the opening and closing of the air release lid may be controlled from a position adjacent the ground level of the silo, thereby obviating the necessity of the farmer having to climb to the top of the silo whenever the air release vale is to be opened or closed.
I will explain the invention with reference to the accompanying drawing which illustrates one practical embodiment thereof, to enable others familiar with the artto adopt and use the same, and will summarize in the claims the novel features of construction, and novel combinations of parts, for which protection is desired.
In said drawing:
FIG. 1 is a perspective view of my novel air release lid installed on the roof of a silo adjacent the edge thereof.
FIG. 2 is a vertical section through the air release lid and the adjacent portions of the silo, showing the lid in normal closed position.
FIG. 3 is a view similar to FIG. 2 showing the lid in raised position to permit escape of excess air from the interior of the silo during the filling operation.
As shown in the drawing, the silo is provided with a roof R having adjacent its edge portion a filling opening surrounded by an upstanding rib R. The opening may be of any desired shape or size but inmost instances would be circular as would be the surrounding rib R.
On the roof R is an upstanding bracket consisting of a pair of spaced parallel bars 1 of rectangular crosssection, as shown in FIG. 1, extending from a base bar 2 which is secured by screws 3 or the like to the upper side of the roof R, as shown in FIG. 1, the bracket 1 being disposed radially inwardly of the roof R with respect to the rib R. I
An arm 4a is pivotally mounted at one end on a bolt 5 extending through aligned perforations in the end of the arm 4 and through the upright bars 1-1 of the bracket, so that the arm can pivot freely, the outer end of the arm 4 terminating at approximately the center of the circular rib R", as shown. A coil spring 6 is provided having one end secured in perforation 7 in the upper ends of the bars 1 of the bracketand its other end secured in a perforation 4a adjacent the outer end of arm 4, whereby the spring 6 will normally tend to pivot the arm 4 upwardly with respect to the roof R, for the purpose hereinafter set forth. A pair of spaced parallel bars 11 are fixedly secured to the outer end of arm 4 normally to the axis of arm 4, said bars 1 1 extending above and below said arm 4.
2-: the lid 8 is seated on.rib.R-' the opening through. the roof R will be closed-in an airtight manner.
As shown, the-lid. 8 is provided with-aplate 9 secured by screws 10 or the like to the upper face of the lid 8, the plate 9 carrying at the centerof the lid 8 an upstanding lug 94 disposed between the lower ends of the bars 11, and a bolt 12 passes through aligned perforations in the lower end of the bars 11 and through the lug 9a, as shown in FIG. 1, whereby the lid 8 may pivot on the bolt 12 with respect to the axis of the arm 4, the outer end of which arm 4 extends between the bars 11 and is fixedly secured thereto in any desired manner sothat the axis of the bars 11 will remain normal to the longitudinal axis of the arm 4 at all times.
As above stated, the spring 6 normally tends to raise the arm 4 to unseat the lid 8 from the rib R, to permit excess air within the silo to escape through the air release opening in the roof R of the silo. However, after the silo filling operation has been completed by the silage blower, the lid 8 may be closed and maintained closed by means of a cable 13 which has one end engaged in perforations 11a in the upper ends of the pair of bars 11, the cable 13 passing in substantial alignment with the axis of thearm 4 to the edge of the silo roof R and over a pulley 14 carried by a bracket 15 secured to the upper edge of the silo, the cable 13 passing downwardly to a customary lever (not shown) on the side of the silo disposed 4 or 5 feet above ground level, the customary lever being adapted to be locked in lowered position so that when the customary lever is swung downwardly the cable l3 is drawn taut, and when the customary lever is locked in down position the tautness in the cable 13 will maintain the lid 8 firmly down on the rib R, thus maintaining the interior of the silo sealed against further seepage of air into or out of the silo.
By the above construction, since the air release valve is operable from the ground level it is not necessary that the farmer climb to the top of the silo each time he desires to open or close the air release valve in the top of the silo. Obviously the release lid 8 can be made of metal or any other desired material, and the dimensions and shape can be varied to suit the desired size and shape of the air release opening in the silo roof R.
I claim:
1. An air release lid for sealed silos having an air opening in the silo roof surrounded by a raised rib, comprising a bracket secured on said roof and disposed radially inwardly of said rib; an arm pivoted on said bracket adjacent the lower end thereof, said arm terminating at substantially the center of said rib; a spring connecting the upper end of said bracket with the outer end portion of said arm for normally urging the arm to swing upwardly; a second bracket disposed normal to the axis of the arm and fixedly secured intermediate its ends to the outer end of said arm; a lid of same shape as but larger than said rib pivotally connected to the lower end of said second bracket; and a cable extending from the upper end of said second bracket radially across the silo roof and down the side of the silo and adapted to be locked when the cable is drawn taut, thereby maintaining the lid tightly seated upon said rib.
2. In a lid as set forth in claim 1, said first bracket comprising a base bar adapted to be secured to said roof, and a pair of spaced parallel bars extending upwardly from said base bar receiving between them the end of said arm.
tween the lower end of the parallel bars of said second bracket; and a pivot bolt transfixing the lug and the said parallel bars.

Claims (4)

1. An air release lid for sealed silos having an air opening in the silo roof surrounded by a raised rib, comprising a bracket secured on said roof and disposed radially inwardly of said rib; an arm pivoted on said bracket adjacent the lower end thereof, said arm terminating at substantially the center of said rib; a spring connecting the upper end of said bracket with the outer end portion of said arm for normally urging the arm to swing upwardly; a second bracket disposed normal to the axis of the arm and fixedly secured intermediate its ends to the outer end of said arm; a lid of same shape as but larger than said rib pivotally connected to the lower end of said second bracket; and a cable extending from the upper end of said second bracket radially across the silo roof and down the side of the silo and adapted to be locked when the cable is drawn taut, thereby maintaining the lid tightly seated upon said rib.
2. In a lid as set forth in claim 1, said first bracket comprising a base bar adapted to be secured to said roof, and a pair of spaced parallel bars extending upwardly from said base bar receiving between them the end of said arm.
3. In a lid as set forth in claim 1, said second bracket comprising a pair of spaced parallel bars receiving between them the adjacent end of the arm.
4. In a lid as set forth in claim 3, a base secured to the tops of said lid having an upstanding lug disposed between the lower end of the parallel bars of said second bracket; and a pivot bolt transfixing the lug and the said parallel bars.
US00209714A 1971-12-20 1971-12-20 Air release lid Expired - Lifetime US3733750A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871142A (en) * 1973-06-18 1975-03-18 Windtie Corp Device for holding down mobile homes
US4208839A (en) * 1977-03-25 1980-06-24 Candy James O Sr Lid opener for storage container
US4327522A (en) * 1979-11-13 1982-05-04 Westeel-Rosco Limited Assembly for actuation of openable closure lid
US4747244A (en) * 1987-02-25 1988-05-31 Christianson Glenes O Bin cap operable from the ground
US4979470A (en) * 1989-10-10 1990-12-25 Anderson Douglas D Spring loaded feeder closure
US6684569B2 (en) * 2001-06-27 2004-02-03 The Boeing Company Self-closing access door
EP1440916A1 (en) * 2003-01-24 2004-07-28 Maisonneuve Closing device for Manhole as well as tank with such manhole
US8196362B1 (en) * 2011-06-02 2012-06-12 Loyd Edmund Ratts Apparatus for opening and closing a storage bin hatch
US8375637B2 (en) * 2011-06-14 2013-02-19 Bradley Metro Zazula Grain bin lid assembly
US20130273827A1 (en) * 2011-01-12 2013-10-17 John Waldner Attic inlet
US20210362944A1 (en) * 2018-11-26 2021-11-25 Conspec Controls, Inc. Methods and Systems for Remote Opening and Monitoring of an Access Hatch

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871142A (en) * 1973-06-18 1975-03-18 Windtie Corp Device for holding down mobile homes
US3894365A (en) * 1973-06-18 1975-07-15 Windtie Corp Device and method for holding down mobile homes
US4208839A (en) * 1977-03-25 1980-06-24 Candy James O Sr Lid opener for storage container
US4327522A (en) * 1979-11-13 1982-05-04 Westeel-Rosco Limited Assembly for actuation of openable closure lid
US4747244A (en) * 1987-02-25 1988-05-31 Christianson Glenes O Bin cap operable from the ground
US4979470A (en) * 1989-10-10 1990-12-25 Anderson Douglas D Spring loaded feeder closure
US6684569B2 (en) * 2001-06-27 2004-02-03 The Boeing Company Self-closing access door
EP1440916A1 (en) * 2003-01-24 2004-07-28 Maisonneuve Closing device for Manhole as well as tank with such manhole
FR2850365A1 (en) * 2003-01-24 2004-07-30 Maisonneuve DEVICE FOR CLOSING A TANK MAN HOLE AND TANK PROVIDED WITH SAME
US20130273827A1 (en) * 2011-01-12 2013-10-17 John Waldner Attic inlet
US9445574B2 (en) * 2011-01-12 2016-09-20 John Waldner Attic inlet
US8196362B1 (en) * 2011-06-02 2012-06-12 Loyd Edmund Ratts Apparatus for opening and closing a storage bin hatch
US8375637B2 (en) * 2011-06-14 2013-02-19 Bradley Metro Zazula Grain bin lid assembly
US20210362944A1 (en) * 2018-11-26 2021-11-25 Conspec Controls, Inc. Methods and Systems for Remote Opening and Monitoring of an Access Hatch
US11760565B2 (en) * 2018-11-26 2023-09-19 Conspec Controls, Inc. Methods and systems for remote opening and monitoring of an access hatch

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