WO1990009684A1 - Battery lid storage system - Google Patents
Battery lid storage system Download PDFInfo
- Publication number
- WO1990009684A1 WO1990009684A1 PCT/GB1990/000206 GB9000206W WO9009684A1 WO 1990009684 A1 WO1990009684 A1 WO 1990009684A1 GB 9000206 W GB9000206 W GB 9000206W WO 9009684 A1 WO9009684 A1 WO 9009684A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- storage apparatus
- lids
- stack
- lid
- housing
- Prior art date
Links
- 230000000694 effects Effects 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
-
- 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
- B65G59/00—De-stacking of articles
- B65G59/10—De-stacking nested articles
- B65G59/101—De-stacking nested articles by means of oscillating escapement-like mechanisms
- B65G59/103—De-stacking nested articles by means of oscillating escapement-like mechanisms comprising lifting or gripping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7146—Battery-cases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- This invention relates to the storage of battery lids during the manufacture of accumulator batteries.
- the invention consists in a stack of battery lids, comprising a plurality of battery lids of similar form, each including an aperture therein, and an elongate member extending through each said aperture of said plurality of lids to maintain said lids in alignment.
- each of said battery lids includes two apertures and the stack includes two elongate members which extend through respective ones of said apertures.
- each battery lid includes two part-formed battery posts, each having a bore which defines a respective one of said apertures.
- the lid may also include a plurality of filling holes.
- the or each elongate member is provided at one end with stop means for preventing passage of a battery lid.
- the or each elongate member may be provided with releasable stop means at the other end thereof.
- the invention consists in storage apparatus for storing a stack of battery lids (as hereinbefore defined) , comprising a housing for supporting said stack, said housing including connection means for releasably connecting the or each elongate member to said housing.
- said housing includes release means or similar for locating and subsequently releasing successive battery lids from the bottom of a stack thereof; the release means may be in the form of the fingers illustrated - 3 - in our P.C.T. Application No. PCT/GB89/00085.
- a trolley means is provided below said housing for receiving lids released therefrom.
- the trolley may be movable laterally of'the stack to deliver the lids to a further operation station.
- the trolley is preferably movable longitudinally with respect to the stack to and from a lid receiving position.
- Camming means are preferably engageable with said trolley for' causing said release means to release a battery lid onto said trolley as it moves towards the lid receiving position.
- the housing includes guide means for guiding battery lids towards said release means.
- connection means for connecting the or each elongate member to the housing preferably comprises releasable engagement means for releasably engaging the upper end of the or each elongate member.
- the releasable engagement means may comprise a spring biased latch plate having a respective abutment portion, e.g. a slot or similar, for engaging the upper end of the or each elongate member.
- the housing may be configured to support two stacks of lids side by side.
- a plurality of housings may be releasably secured to a rotatable carousel means, and• said storage apparatus may include indexing means for indexing said carousel means to bring successive housings to an operating station.
- the storage apparatus includes location means for engaging and locating each of said housings in a preset location with respect to said trolley when it is at said operating station.
- Said location means may include peg means and a locating plate means defining a' complimentarily shaped aperture, with one of said peg means and plate means being provided on said housing and the other being provided on a fixed structure adjacent said carousel means, there being means to effect relative engagement movement of said peg means and said plate means when said housing is at said operating station.
- said housing is pivotally supported on said carousel means for movement between an operating position, e.g. maintaining the longitudinal axis of the stack of battery lids generally vertical, and a loading position.
- This pivotal movement preferably occurs about a generally horizontal pivotal axis.
- the housing may include two generally parallel locating rod means, one of which is supported by a support member on said carousel means to define said horizontal pivotal axis, and the other being releasably connectable to a spaced support means on said carousel means by means of a movable lock member.
- the lock member is conveniently capable of acting as a prop to prop said housing in its loading position.
- the apparatus includes a carousel means
- the apparatus it is preferred for the apparatus to include safety cage means for preventing access to said carousel means during operation thereof.
- said safety cage means includes one or more sections openable adjacent a loading station to allow a stack of lids to be loaded.
- the safety cage means includes a part- cylindrical wall and a lower, end wall and a portion of said end wall is hingeable to allow access to the lower end of said housing when the housing is pivoted to its loading position.
- Figure 1 is a schematic side view of a lid sealing apparatus including a carousel lid storage system, with some parts removed for clarity;
- Figure 2 is a general perspective view of an accumulator battery;
- Figure 3 is a section view of the battery lid of the battery of Figure 2, taken on the transverse plane defined by the axes of the terminal posts;
- Figure 4 is a side view of a magazine rod for forming a stack of lids of the type shown in Figure 3;
- Figure 5 is a side view of a lid cassette holder used in the carousel lid storage system of Figure 1 ;
- Figure 6 is a end view of the lid cassette holder illustrated in Figure 5;
- Figure 7 is a detailed view of the attachment of the lid cassette holder of Figures 5 and 6 to the carousel member of the system of Figure 1 ;
- Figure 8 is a side view of the lid delivery trolley when in a collapsed position
- Figure 9 is a side view of the lid delivery trolley when in a raised position
- Figure 10 is a top plan view of the safety cage for the carousel lid storage system of Figure 4.
- FIG. 1 there is illustrated a lid sealing apparatus of the general type disclosed in our co-pending P.C.T. Application No. PCT/GB89/00085, but with a carousel lid storage system and further modifications as to be described below.
- the lid sealing apparatus is designed for the manufacture of batteries of the type shown in Figure 2, in which a battery lid 10 is heat sealed to a battery box 12.
- the battery lid 10 is principally of moulded plastics material but includes two cast hollow terminal posts 14 and 16 each including a respective internal bore 15 and 17.
- the lid also may include a series of filling holes 18.
- the battery lid 10 Before assembly to the battery box 12, the battery lid 10 has the general form as shown in Figure 3.
- the lid sealing apparatus includes a box delivery system generally indicated at 20, a heat sealing system generally indicated at 22, a lid storage system 24, and a trolley arrangement 26 for 'moving lids delivered from the lid storage system 24 to the heat sealing system 22.
- the construction and operation of the box delivery system and heat sealing system are generally as described in our P.C.T. Application No. PCT/GB89/00085 and will not be described in detail here.
- the lid storage system 24 includes a base frame 28, a safety cage 30, and a carousel arrangement 32.
- the carousel arrangement 32 removably supports a number of lid cassette holders 34.
- the carousel arrangement is shown as being capable of supporting two lid cassette holders; in practice, the carousel arrangement may be, capable of supporting four, or possibly more, lid.cassette holders.
- the carousel arrangement comprises a hub assembly 36 which is rotatably mounted about a vertical shaft 38.
- the hub assembly comprises an upper plate 40 having a pair of diametrically opposed, parallel channels 42 of semi-circular section, each for receiving an upper bearing rod 44 of an associated lid cassette holder 34.
- Half way along each channel 42 there is provided a pip 46 which locates in a circumferential groove 47 in the upper bearing rod 44 of the associated lid cassette holder.
- a clamping arrangement is associated with each channel 42, comprising a clamp plate 48, a reaction pad 50, twin spaced pips 52 and a knurled clamping bolt 54.
- the pips 52 are located one to either side of the pip 46.
- a lower plate 56 is supported beneath the upper plate 40 by a collar 58.
- the lower plate includes a pair of diametrically opposed, parallel, open sided channels 60 which are disposed parallel to and vertically, below the channels 42 in the upper plate.
- An L-shaped lock member 62 is associated with each channel 60 and is pivotable between the position shown in the left hand side of Figure 7 and that shown in the right hand side by a pivotal arm 64.
- the channel 60 is designed to receive the lower support rod 66 of a lid cassette holder 34.
- each lid cassette holder 34 defines two"reservoirs 68,70 each for receiving a lid cassette.
- Each lid cassette is made up of a stack of battery lids 12 held in alignment by means of two magazine rods 72 of the form shown in Figure 4, which pass through the aligned bores 15 and 17 of the terminal posts 14 and 16.
- Each magazine rod 72 comprises a washer 74 welded to the upper end thereof and a sleeve 76 held against the washer by means of a clip 78.
- each reservoir At the lower end of each magazine rod 72 there is provided a transverse bore 79 for receiving a movable clip 80.
- This arrangement makes to possible to assemble stacks of battery lids of similar form ready for insertion into the machine of Figure 1. Also , by using this regular stacking arrangement, it may be possible to reduce the storage space necessary.
- each reservoir At the lower end of each magazine rod 72 there is provided a transverse bore 79 for receiving a movable clip 80.
- each latch plate 86 includes an upturned lip 89 together with two open-ended slots 90.
- the spacing of the slots 90 on each latch plate 80 matches the spacing of the terminal posts 14 and 16 (and thus the magazine rods 72) of the lid cassette to be received in the lid cassette holder.
- the latch plate 86 is biased towards the position shown in Figure 6 by means of a spring 92.
- a stack of lids aligned by the magazine rods 72 and together forming a lid cassette is slid into the reservoir via its lower end until the washers 74 at the upper ends of the magazine rods 72 contact the locking plate 86. Further upward motion of the magazine rods 72 causes the locking plate 86 to deflect in a clockwise direction as seen in Figure 6 until the washers can pass the plate 86. The spring 92 then causes the locking plate 86 to flip back so that the walls of the slots 90 engage the sleeves 76 of the magazine rods and the rods are releasably engaged.
- the reservoirs 68 and 70 are held side-by-side by means of tie bars 94 and lower support brackets 96 provided one to either side of the lid cassette holder 34. Between the right hand ends of the lower support brackets 96 (as viewed in Figure 5) support between them an upper bearing rod 44 and a lower support rod 66 for connection to the carousel hub assembly 36 as discussed above.
- Each lower support bracket 96 also mounts a rotatable pick-up finger shaft 98 in bearing plates 100.
- Each pick-up finger shaft includes two spaced pairs of fingers 102 (one pair per reservoir), and a cam element 104. Each cam element biased by means of a spring 106 to urge the fingers 102 on opposed sides of the reservoir towards each other to restrain the bottom-most battery lid 10 of the lid cassette.
- the lid cassette holders 34 mounted on the carousel arrangement 32 may be indexed to a lid delivery position by an indexing mechanism 101 shown schematically in Figure 1.
- the single lid cassette holder is in the lid receiving position.
- Each lid cassette holder includes at its radially outer end a locating plate 103 defining a circular aperture.
- a complementarily shaped peg 105 is ' provided on the machine structure adjacent the lid delivery position and movable into engagement with the locating plate 103 securely to lock the lid cassette holder in its lid delivery position.
- the cam element 104 co-operates with a cam bar 108 which is slidably mounted on a fixed structural member (not shown) for movement in a vertical plane.
- the cam bar When in its uppermost position, the cam bar engages the cam elements 104 and rotates them in opposite directions to urge the fingers 102 apart to release the bottom-most battery lid 10 of the lid cassette. Raising and lowering of the cam bar 108 is done by the trolley arrangement 26, as to be described below.
- the trolley arrangement 26 includes a trolley 110 which carries on its upper surface a jig (not shown) configured to receive the battery lids.
- the trolley is suppported on parallel tubular guides 112 (one of which is shown) for movement between a position directly below the reservoirs 68 and 70, for receiving lids released therefrom, and a position adjacent the heat sealing system.
- the trolley 110 is made up of a base plate 114 connected to an intermediate frame 116 by means of parallel links 118, the intermediate frame supporting an upper frame 120 by means of parallel links 122.
- the intermediate and upper frames 116,120 are provided with a respective cam roller 124 and 126 respectively at opposite ends. As the trolley moves towards its lid receiving position, the intermediate roller 124 engages a generally C-shaped cam bracket 128 secured to the base frame 28 of the
- cam bracket (not shown) of similar form to cam bracket 128 is provided at the opposite end of the trolley run so that as the trolley approaches its heat sealing position the upper frame 120 is lifted away from the intermediate and lower frames to present the battery lids to the heat sealing system 22. It will be noted that, in contrast with the arrangement- disclosed in our earlier P.C.T. Application No. PCT/GB89/00085, the lid cassette holders 34 remain fixed vertically and the trolley raises and lowers to pick up the battery lids 10.
- the safety cage 30 surrounding the lid storage system comprises a generally cylindrical wall 130 having a vertically hinged door 132 - - and a floor 134 having a horizontally hinged trapdoor 136.
- the safety cage is provided with catches 138 for holding the door 132 and trapdoor 136 in their closed positions.
- the door 132 and trapdoor 136 are disposed adjacent a lid cassette loading station of the carousel.
- a loading cycle will now be described.
- a lid cassette holder 34 of appropriate configuration is secured on the carousel hub assembly 36 by placing the upper bearing rod 34 of the lid cassette holder in the channel 42 with the pip 46 locating in the circumferential groove 47 of the upper bearing rod.
- the bearing rod is clamped in this position by tightening the clamp plate 48 using the clamping bolt 54.
- the lid cassette holder is capable of pivoting about-the upper bearing rod 44.
- the lid cassette holder is tilted with respect to the vertical and propped in this position by the outer end of the L-shaped lock member 62.
- the fingers 102 are then deflected apart by means of a suitable tool (not shown) .
- a pre-assemhled lid cassette comprising a stack of cassettes aligned by means of magazine rods 72 is then slid into the selected reservoir 68 or 70 and releasably supported therein by co-operation of theheads of the magazine rods 72 with the latch plate 86 at the top of the reservoir.
- the other reservoir is loaded with a lid cassette in a similar way.
- the fingers 102 are then released to return to their • *
- the carousel arrangement is indexed so that the lid cassette holder 34 is moved to the lid delivery position .
- the location peg 105 on the frame structure is then extended to engage the locking aperture in the locating plate 103 on the lid cassette holder so that the lid cassette holder is held in a precise reference position with respect to the trolley arrangement.
- a major advantage of this arrangement is that the lid storage system is capable of handling many different configurations of battery lid without requiring resetting of limit switches, cam surfaces etc.
- several different lid cassette holders 34 of different configurations will be provided, each having different spacing of the magazine rods 72, different cross-sectional shape of the reservoirs etc., with pre-set finger spacing, but which have a common interface with the carousel member and the cam bar 108.
- the arrangement allows both the quick loading and unloading of battery lids of a given shape into and out of the lid cassette holder.
- the apparatus may be rapidly changed to deal with battery lids of a different configuration.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Closures For Containers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB898903755A GB8903755D0 (en) | 1989-02-18 | 1989-02-18 | Battery lid storage system |
GB8903755.0 | 1989-02-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1990009684A1 true WO1990009684A1 (en) | 1990-08-23 |
Family
ID=10651953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1990/000206 WO1990009684A1 (en) | 1989-02-18 | 1990-02-09 | Battery lid storage system |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0458834A1 (en) |
JP (1) | JPH04503426A (en) |
AU (1) | AU5096590A (en) |
CA (1) | CA2048657A1 (en) |
GB (1) | GB8903755D0 (en) |
WO (1) | WO1990009684A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112407975A (en) * | 2020-10-02 | 2021-02-26 | 华中科技大学 | Spherical label continuous bidding device applied to coal transportation belt coal quality identification |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115057143A (en) * | 2022-06-28 | 2022-09-16 | 协讯电子(吉安)有限公司 | Feed bin feed mechanism of bottom packaging box |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2327941A1 (en) * | 1975-10-16 | 1977-05-13 | Zahnradfabrik Friedrichshafen | INSTALLATION FOR TRANSPORTING PARTS |
EP0136821A2 (en) * | 1983-09-06 | 1985-04-10 | Amalgamated Mining & Trading Limited | A method and apparatus for forming containers |
DE8525534U1 (en) * | 1985-09-05 | 1985-10-31 | Siemens AG, 1000 Berlin und 8000 München | Device for separating ring disks |
WO1989007044A2 (en) * | 1988-02-02 | 1989-08-10 | Drg (Uk) Limited | Apparatus for use in the manufacture of batteries |
-
1989
- 1989-02-18 GB GB898903755A patent/GB8903755D0/en active Pending
-
1990
- 1990-02-09 EP EP90903195A patent/EP0458834A1/en not_active Withdrawn
- 1990-02-09 WO PCT/GB1990/000206 patent/WO1990009684A1/en not_active Application Discontinuation
- 1990-02-09 AU AU50965/90A patent/AU5096590A/en not_active Abandoned
- 1990-02-09 JP JP2503353A patent/JPH04503426A/en active Pending
- 1990-02-09 CA CA002048657A patent/CA2048657A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2327941A1 (en) * | 1975-10-16 | 1977-05-13 | Zahnradfabrik Friedrichshafen | INSTALLATION FOR TRANSPORTING PARTS |
EP0136821A2 (en) * | 1983-09-06 | 1985-04-10 | Amalgamated Mining & Trading Limited | A method and apparatus for forming containers |
DE8525534U1 (en) * | 1985-09-05 | 1985-10-31 | Siemens AG, 1000 Berlin und 8000 München | Device for separating ring disks |
WO1989007044A2 (en) * | 1988-02-02 | 1989-08-10 | Drg (Uk) Limited | Apparatus for use in the manufacture of batteries |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112407975A (en) * | 2020-10-02 | 2021-02-26 | 华中科技大学 | Spherical label continuous bidding device applied to coal transportation belt coal quality identification |
CN112407975B (en) * | 2020-10-02 | 2022-05-13 | 华中科技大学 | Spherical label continuous bidding device applied to coal transportation belt coal quality identification |
Also Published As
Publication number | Publication date |
---|---|
AU5096590A (en) | 1990-09-05 |
CA2048657A1 (en) | 1990-08-19 |
JPH04503426A (en) | 1992-06-18 |
GB8903755D0 (en) | 1989-04-05 |
EP0458834A1 (en) | 1991-12-04 |
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