US3759579A - Air conveyor deck - Google Patents

Air conveyor deck Download PDF

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Publication number
US3759579A
US3759579A US00202406A US3759579DA US3759579A US 3759579 A US3759579 A US 3759579A US 00202406 A US00202406 A US 00202406A US 3759579D A US3759579D A US 3759579DA US 3759579 A US3759579 A US 3759579A
Authority
US
United States
Prior art keywords
slots
tongues
plates
along
nozzles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00202406A
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English (en)
Inventor
W Johnston
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carrier Vibrating Equipment Inc
Rex Chainbelt Inc
Original Assignee
Rex Chainbelt Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rex Chainbelt Inc filed Critical Rex Chainbelt Inc
Application granted granted Critical
Publication of US3759579A publication Critical patent/US3759579A/en
Assigned to COUNTY OF JEFFERSON, KENTUCKY, THE POLITICAL SUBDIVISION OF THE COMMONWEALTH OF KENTUCKY, FIRST NATIONAL BANK OF LOUISVILLE, 101 SOUTH FIFTH ST., LOUISVILLE, KY. 40202 A NATIONAL BANKING ASSOCIATION, REXNORD INC., 3500 FIRST WISCONSIN CENTER, MILWAUKEE, WIS. 53202 A WIS CORP. reassignment COUNTY OF JEFFERSON, KENTUCKY, THE POLITICAL SUBDIVISION OF THE COMMONWEALTH OF KENTUCKY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CARRIER VIBRATING EQUIPMENT, INC.
Assigned to CARRIER VIBRATING EQUIPMENT INC, A KY CORP reassignment CARRIER VIBRATING EQUIPMENT INC, A KY CORP ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: REXNORD INC
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G51/00—Conveying articles through pipes or tubes by fluid flow or pressure; Conveying articles over a flat surface, e.g. the base of a trough, by jets located in the surface
    • B65G51/02—Directly conveying the articles, e.g. slips, sheets, stockings, containers or workpieces, by flowing gases
    • B65G51/03—Directly conveying the articles, e.g. slips, sheets, stockings, containers or workpieces, by flowing gases over a flat surface or in troughs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/16—Gas pressure systems operating with fluidisation of the materials
    • B65G53/18—Gas pressure systems operating with fluidisation of the materials through a porous wall

Definitions

  • Another popular form resembles a series of louvers providing laterally extending slots through which the air passes with a substantial downstream velocity to not only support the material but also to propel it along the conveyor channel.
  • a portion of the conveyor channel which may be the bottom or deck of the channel, a side wall, or the top, is constructed of parallel, closely adjacent plates each of which is transversely slotted with a depressed tongueextending along one side of each slot.
  • Each tongue is adapted to enter a corresponding slot of the other plate. member and overlap the tongue along that slot to form the sides of an air jet nozzle.
  • the spacing between and overlap of the tongues is adjusted by moving the plates relative to each other.
  • the nozzles are preferably directed in a downstream direction to direct flat sheets of air in a downstream direction between the deck or wall of the conveyor channel and the material in the channel.
  • the nozzles are usually located in the bottom of the conveyor channelso that the air jets support the material, the nozzles are located inside walls particularly on curves in the channel or at the entrance side of switches where the material is to be directed to one of two or more diverging channels.
  • the means comprises a plenum chamber extending along the deck or wall, the plenum chamber being supplied with air from a blower or fan.
  • the channel can be closed and air exhausted from its downstream end to produce the air flow through the nozzles.
  • FIG. 1 is a plan view, at small scale, of the improved of a modified form of deck for the conveyor.
  • FIG. 7 is a plan view at enlarged scale, of a fragment of conveyor deck showing another modification thereof.
  • the improved conveyor comprises a trough 1 that is divided into an upper section or channel 2 and a plenum chamber 3 by a deck 4.
  • a fan 5 that is driven by a motor 6 supplies air under pressure through a conduit or air pipe 7 into the plenum chamber 3.
  • the deck 4 as may beseen in greater detail in FIG. 3, comprises an upper plate 10 and a lower plate ll, the lower plate being supported by any suitable means such as angle irons 12 extending along the sidewalls of the trough 1.
  • the upper plate 10 at regular intervals, is slotted transversely to provide openings 13 extending laterally nearly the full width of the trough l.
  • the longitudinally extending sides of the openings 13 are extended in a downstream direction of the conveyor as slits and the material therebetween is bent downwardly to form a series of downwardly directed tongues 14.
  • the lower plate 11 is also transversely slotted to provide openings 16.
  • the material upstream to the left in FIGS. 3 and 5, adjacent each of the openings 16 of the lower plate 1 1 is bent upwardly to form tongues 17.
  • the spacing of the openings 16 in the lower plate 1 1 is the same as the spacing of the openings 13 in the upper plate 10.
  • the two plates 10 and 11 are assembled with the tongues 14 of the upper plate extending downwardly through the slots 16 of the lower plate 11 and with the tongues 17 of the lower plate extending upwardly into the slots 13 of the upper plate 10.
  • the flat adjacent portions of the plates 10 and 11 are substantially in contact in the assembled form and the lower surface of the tongues 17 of the lower plate overlap the upper surfaces of the tongues 14 of'the upper plate to form nozzles through which air enters the conveyor channel.
  • air from the plenum chamber 3 flows in a downstream direction along the surface of the lower plate 11, follows upwardly along the lower surface of a tongue 17 and through nozzles 20 formed between the overlapped portions of the tongues 17 and 14 and exits into the upper section 2 of the conveyor along the supper surface of a downwardly depressed tongue 14 of the upper plate 10.
  • the lower plate 11 is longitudinally adjustable with respect to the upper plate 10 thus permitting the vertical dimension of orifices or nozzles 20 between the tongues 14 and 17 to be varied and thus control the velocity of the air flow, as indicated by the arrows 21, and
  • Any suitable mechanism may be used to adjust the relative positions of the lower plate 11 with respect to the upper plate 10. This may include, for example, a small hand wheel 24 on a shaft extending longitudinally from the end of the conveyor trough 1. The shaft may be threaded and engage a nut attached to the lower surface of an adjacent portion of the lower plate 11.
  • the air issuing from the plenum chamber into the upper section 2 of the trough be divided as a series of laterally adjacent jets instead of the single flat sheet of air as would issue through the gaps or nozzles 20 between the tongues 14 and 17.
  • Such an arrangement of the air flow may be obtained by providing the downstream edge of tongues 17a of the lower plate with a series of slots 26 (FIG. 6) extending from such downstream edge a suitable distance toward the upstream portion of the tongue.
  • the lengths of the slots may be such that the slotted portion of the tongue 17a overlaps the upstream edge of the tongue 14a of an upper plate 10a.
  • This arrangement of slots has the efl'ect of allowing some of the air to issue in a more nearly vertical direction from the plenum chamber into the upper section of the trough. This provides greater lifting effort without detracting substantially from the forward drive exerted by the air flowing through the nozzles 20 and acting on the material in the trough.
  • holes 28 and 29 may be drilled in the upper and lower plates 10b and 11b respectively in the areas generally midway between the nozzles 20. Air flow from the plenum chamber through the holes provides a vertical lifting force to keep the material in the conveyor free from the deck 4.
  • the combination of the two plates with the interengaging tongues that are adjustable relative to each other provides the capability of so controlling the air flow that practically any conveyable material may be efficiently conveyed, either from a standing start, i.e. conveyor channel filled with the product before starting the air flow, or in the usual mode of supply air from the plenum chamber before supplying material to the conveyor.
  • a conveyor channel a portion of said channel adapted to face and extend along the path of the material to be moved, means for maintaining a pressure difierential across said portion, said portion comprising a pair of plates each of which has a plurality of slots bounded along one side by a tongue the surface of which is inclined to the plane of the portion, each slot being separated from the next adjacent slot by a flat portion of said plate, the tongues of each plate being inserted into adjacent slots of the other plate with said flat portions juxtaposed and said tongues cooperating to from air jet nozzles for directing air flowing through the portion along a path inclined to the portion, said plates being adjustable relative to each other to vary the spacing between said inclined surfaces of the tongues and thus the flow characteristics of the nozzles.
  • a plenum chamber extending along said portion in communication with said slots, and means for supplying gas under pressure to said chamber.
  • adjusting means interconnecting said plates for moving one plate relative to the other along a line generally normal to the length of the slots.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Advancing Webs (AREA)
  • Drying Of Solid Materials (AREA)
  • Intermediate Stations On Conveyors (AREA)
US00202406A 1971-11-26 1971-11-26 Air conveyor deck Expired - Lifetime US3759579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20240671A 1971-11-26 1971-11-26

Publications (1)

Publication Number Publication Date
US3759579A true US3759579A (en) 1973-09-18

Family

ID=22749744

Family Applications (1)

Application Number Title Priority Date Filing Date
US00202406A Expired - Lifetime US3759579A (en) 1971-11-26 1971-11-26 Air conveyor deck

Country Status (17)

Country Link
US (1) US3759579A (fr)
JP (1) JPS538111B2 (fr)
AT (1) AT329438B (fr)
AU (1) AU462764B2 (fr)
BE (1) BE791031A (fr)
CA (1) CA942226A (fr)
CH (1) CH558750A (fr)
DE (1) DE2255072A1 (fr)
DK (1) DK140587B (fr)
ES (1) ES408694A1 (fr)
FI (1) FI55635C (fr)
FR (1) FR2161082A1 (fr)
GB (1) GB1370991A (fr)
IE (1) IE38295B1 (fr)
IT (1) IT973439B (fr)
NL (1) NL7214936A (fr)
ZA (1) ZA727649B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910504A (en) * 1974-06-04 1975-10-07 Us Agriculture Air jet nozzle assembly
US3920542A (en) * 1974-06-04 1975-11-18 Us Agriculture Removal of green bolls and heavy materials from seed cotton by air jets
US4451182A (en) * 1978-10-02 1984-05-29 Precision Metal Fabricators, Inc. Air transport system
US4690591A (en) * 1982-05-28 1987-09-01 Fujitsu Limited Method and apparatus for transporting an article in vacuum
US4710068A (en) * 1986-09-15 1987-12-01 Reynolds Metals Company Air conveyor
WO1988006560A1 (fr) * 1987-03-04 1988-09-07 Agroingenjör Ab Agencement servant au transport de marchandises en vrac
US5478174A (en) * 1994-01-14 1995-12-26 Simplimatic Engineering Company Controlled speed single file conveyor
US6402436B1 (en) * 2000-04-28 2002-06-11 Eastman Chemical Company Method and device for conveying planar ribbon of crimped fiber using air jets
US10086526B2 (en) * 2016-10-04 2018-10-02 Geo. M. Martin Company Puffer pan
US10493506B2 (en) * 2016-08-31 2019-12-03 Jejin Engineering Co., Ltd. Inhalation device for local ventilation system
US20220073220A1 (en) * 2019-06-28 2022-03-10 Omnicell, Inc. Apparatuses, systems, and methods for the automated dispensing of and packaging of articles

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113980A (en) * 1975-04-01 1976-10-07 Ichikin Kogyosha:Kk Floating table for sheet carriage
HU172289B (hu) * 1975-12-09 1978-07-28 Richter Gedeon Vegyeszet Mekhanizm dlja sozdanija psevdozhidkogo sloja pri sushke sypuchikh tvjordykh materialov
DE3408014C2 (de) * 1984-03-05 1996-06-20 Eisenmann Kg Maschbau Anordnung zum Fördern bzw. Abtransportieren staub- oder pulverförmiger Stoffe
JPS6159216U (fr) * 1984-09-20 1986-04-21
JPS62243503A (ja) * 1986-04-15 1987-10-24 ワイケイケイ株式会社 スライドフアスナ−裏表転換搬送装置
JPH1086329A (ja) * 1996-09-03 1998-04-07 Heidelberger Druckmas Ag 枚葉紙印刷機における接触のない枚葉紙案内のための装置
DE102016207406B4 (de) 2015-08-06 2021-10-28 Koenig & Bauer Ag Transportvorrichtung zum sequentiellen Transport einzelner bogenförmiger Substrate entlang einer vorgegebenen Bahn

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2882097A (en) * 1956-12-19 1959-04-14 Arvid J Hamren Air-conveyor
US3180688A (en) * 1963-05-22 1965-04-27 Rudolph E Futer Air-lift conveying of solids
US3475058A (en) * 1967-03-13 1969-10-28 Roy Oliver Sanders Conveying apparatus
US3647266A (en) * 1971-01-08 1972-03-07 Bangor Punta Operations Inc Velocity control system for air conveyors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2882097A (en) * 1956-12-19 1959-04-14 Arvid J Hamren Air-conveyor
US3180688A (en) * 1963-05-22 1965-04-27 Rudolph E Futer Air-lift conveying of solids
US3475058A (en) * 1967-03-13 1969-10-28 Roy Oliver Sanders Conveying apparatus
US3647266A (en) * 1971-01-08 1972-03-07 Bangor Punta Operations Inc Velocity control system for air conveyors

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910504A (en) * 1974-06-04 1975-10-07 Us Agriculture Air jet nozzle assembly
US3920542A (en) * 1974-06-04 1975-11-18 Us Agriculture Removal of green bolls and heavy materials from seed cotton by air jets
US4451182A (en) * 1978-10-02 1984-05-29 Precision Metal Fabricators, Inc. Air transport system
US4690591A (en) * 1982-05-28 1987-09-01 Fujitsu Limited Method and apparatus for transporting an article in vacuum
US4710068A (en) * 1986-09-15 1987-12-01 Reynolds Metals Company Air conveyor
WO1988006560A1 (fr) * 1987-03-04 1988-09-07 Agroingenjör Ab Agencement servant au transport de marchandises en vrac
US5478174A (en) * 1994-01-14 1995-12-26 Simplimatic Engineering Company Controlled speed single file conveyor
US6402436B1 (en) * 2000-04-28 2002-06-11 Eastman Chemical Company Method and device for conveying planar ribbon of crimped fiber using air jets
CN1309884C (zh) * 2000-04-28 2007-04-11 伊斯曼化学公司 用空气喷射传送平面型卷曲纤维带的方法和装置
US10493506B2 (en) * 2016-08-31 2019-12-03 Jejin Engineering Co., Ltd. Inhalation device for local ventilation system
US10086526B2 (en) * 2016-10-04 2018-10-02 Geo. M. Martin Company Puffer pan
US20220073220A1 (en) * 2019-06-28 2022-03-10 Omnicell, Inc. Apparatuses, systems, and methods for the automated dispensing of and packaging of articles
US11970300B2 (en) * 2019-06-28 2024-04-30 Omnicell, Inc. Apparatuses, systems, and methods for the automated dispensing of and packaging of articles

Also Published As

Publication number Publication date
BE791031A (nl) 1973-03-01
CA942226A (en) 1974-02-19
JPS4859590A (fr) 1973-08-21
AT329438B (de) 1976-05-10
FI55635B (fi) 1979-05-31
IE38295L (en) 1973-05-26
IT973439B (it) 1974-06-10
DE2255072A1 (de) 1973-05-30
AU4929372A (en) 1974-06-06
NL7214936A (fr) 1973-05-29
IE38295B1 (en) 1978-02-15
AU462764B2 (en) 1975-07-03
JPS538111B2 (fr) 1978-03-25
ES408694A1 (es) 1975-11-01
ATA964072A (de) 1975-07-15
DK140587B (da) 1979-10-08
CH558750A (de) 1975-02-14
DK140587C (fr) 1980-03-10
FI55635C (fi) 1979-09-10
FR2161082A1 (fr) 1973-07-06
ZA727649B (en) 1973-07-25
GB1370991A (en) 1974-10-23

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Legal Events

Date Code Title Description
AS Assignment

Owner name: REXNORD INC., 3500 FIRST WISCONSIN CENTER, MILWAUK

Free format text: SECURITY INTEREST;ASSIGNOR:CARRIER VIBRATING EQUIPMENT, INC.;REEL/FRAME:004176/0589

Effective date: 19830831

Owner name: COUNTY OF JEFFERSON, KENTUCKY, THE POLITICAL SUB

Free format text: SECURITY INTEREST;ASSIGNOR:CARRIER VIBRATING EQUIPMENT, INC.;REEL/FRAME:004176/0589

Effective date: 19830831

Owner name: CARRIER VIBRATING EQUIPMENT INC 3400 FERN VALLEY R

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:REXNORD INC;REEL/FRAME:004167/0676

Effective date: 19830831

Owner name: FIRST NATIONAL BANK OF LOUISVILLE, 101 SOUTH FIFTH

Free format text: SECURITY INTEREST;ASSIGNOR:CARRIER VIBRATING EQUIPMENT, INC.;REEL/FRAME:004176/0589

Effective date: 19830831