US2427897A - Excavator dipper construction - Google Patents

Excavator dipper construction Download PDF

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Publication number
US2427897A
US2427897A US612894A US61289445A US2427897A US 2427897 A US2427897 A US 2427897A US 612894 A US612894 A US 612894A US 61289445 A US61289445 A US 61289445A US 2427897 A US2427897 A US 2427897A
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Prior art keywords
dipper
welded
plates
portions
casting
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Expired - Lifetime
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US612894A
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Will S Burdick
Schneider Karl
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Harnischfeger Corp
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Harnischfeger Corp
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Priority to US612894A priority Critical patent/US2427897A/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets

Definitions

  • si e box ns provide a very strong connection between these I stress in the welded; joint, ,a e r tattms Si m w re wel es ind idi fi l t ai ntwhen 9. 2 s qiiihe .ie ntie i e, bv
  • a further object Z'oithe invention is to provide, a dipper having vertical box sections provid- "ed with horizontal diaphrag s atfsuch levels as to make the horizontal sides" 'of'all box sections around the entire dipper atboth topand bottom eei e liavine re s l t tsrl 1;... .dvzw ded. tethes cles p tth d nn r or ext strength in the tie between said front and dipper body.
  • the invention further consists in the several features hereinafter set forth and more particuthereot continuous.
  • V Fi .1 is "a conventional vie jdffa”dipperofjthe shovel typeshowin'g'its'coiinectioris withthe dipper stick andboom; 3 v
  • X ii f bodying the inve'rition arts being broken and: parts being .shown in's'btionl Fig. 3 "is "a back elevation view brine-hitting; Fig. 4 is a detailed horizontal sectional View taken on the 'linef ll'oi Fig. 2;
  • Fig. 5 is a deemed-much sectional viwtalien on the line 5-5 ofFigQ3; t Q J H in Fig. 6 is a; detailed'verticalseotion'alviewtaken on the'broken linetfi bffFi g .”2
  • I I i Fig. 7 is a detaild vertical sfiofialviwtflih ontheline'l-J bf FigjZ;
  • the base portion 24 ofeaoh bail' casting i5' is "welded'at its e e portion Zlfl mi l-i sp p r:ed s 1 9 Fig. '7, to its side p1a te"29.
  • is also welded along its bottom edge to the base portion 24 and at its back edge 33 is welded to the web of the channel section 30, see 'Fig. 4.
  • Each bottom side cover plate 32 is of channel section as shown in Fig. 10 and is welded at its side edges 34 to its side plate 29.
  • of the front is a V- or U-shaped form and is welded as shown in Fig. 10 at 35 to the side plate 29 and is welded to the front end 36 of the bottom side cover plate 32.
  • the back I4 includes a fabricated steel plate 31 having forwardly bent corner portions 38 which are welded at their front edges to the side plates '29 as shown at 39 in Fig. 4 and which are welded to the rear edges 40 of the back portions of channel sections 30 to form vertically disposed box sections 4
  • Diaphragms or brace plates 42 are welded to the sides of each box section in planes alined with the tops and bottoms of the side box sections 43 and 44 formed by the side plates and their cover plates as heretofore described, and are shown in Fig. 8.
  • the back also includes top and bottom horizontally disposed steel channel sections 45 and 46 whose edges are welded to the back of the back plate 31 as shown in Fig. to provide horizontal box sections 41 and 48 which are alined respectively with the side box sections 43 and 44, so that box sections extend continuously around the sides'and back of the dipper, the ends of the channel sections 45 and '46 being welded to the webs of vertical box sections 4
  • the dipper stick pin'mountings I6 are steel blocks or casting welded in spaced pairs to the box section 45, see Figs. 3 and'5.
  • the door hinge lugs I1 are steel blocks or castings welded in spaced pairs to the box section 46, and the inner .onesof these pairs of blocks also form one of the dipperbrace link connectors l8 as shown in Figs. 3 and 5.
  • Theothers of the link connectors 18 are short steel blocks welded to the box section 46 as shown in Fig. 3.
  • stiffening plates or ribs 50 are welded to the back plate 31 and to inner pivots IB- and the inner sets of hinge lugs I! as shown in Figs. 8 and 5 and similar plates 5
  • a dipper door 52 of any suitable construction may be mounted on the hinge lugs I! and be provided with the usual operator controlled latch to engage in the keeper or latch plate 23.
  • the bail 53 for the hoist rope 54 is pivotally connected to the bail castlugs 15, the dipper stick 55 is connected to the pin mountings l6, and brace links 56 are operatively connected to the connectors I8 and the dipper stick.
  • a dipper In a dipper, the combination of a dipper front casting, bail castings having base portions having an S-shaped line butt welded connection with said front casting, and side plates also butt welded to said castings along said S-line and to said base portion lengthwise thereof.
  • a dipper In a dipper, the combination of a dipper front casting, bail castings having base portions with an S-shaped line butt welded connection with said front casting, side plates also butt welded to said castings along said s-line and to said base portion lengthwise thereof, and cover plates for said bail castings welded thereto lengthwise thereof and butt welded to said front casting along said S-line.
  • a back plate having forwardly inclined side margins, and side plates having their rear portions formed to provide channel sections, said channel having welded connection with said side margins to form vertically disposed box sections at the corners of the dipper.
  • a dipper having sides and a back formed of metal plates welded together to provide vertical box sections at the corners and horizontal upper and lower box sections at the sides and back of the dipper welded to said vertical box sections.
  • a dipper having sides and a back formed of metal plates welded together to provide'vertical boxsections at the corners and horizontal upper and lower box sections at the sidesand'back of the dipper welded to said vertical box sections, said vertical box sections having horizontally-disposed plates welded thereto in planes coincident with the tops and bottoms of said horizontal box sections to make continuous box sections around the entire body of the dipper.
  • a dipper In a dipper,- the combination of a dipper front casting having projecting pronged'portions at its lower end; side plates welded to said pronged portions, and cover plates forthe lower portions of said side plates welded theret and to said front casting and enclosing said pronged portions.
  • a dipper the combination of a dipper front casting having side projections atits top and bottom portions, side plates having a welded joint connection with said projections, and cover plates cooperating with said side plates Y to form horizontal box sectionsat the upper and lower portions of the sides of the dipper having welded joint connection with said projections bail castingshaving welded joint connections with said front casting, said side plates, and the cover plates at the upper portions of the side plates.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Connection Of Plates (AREA)

Description

Sept. 23, 1947.
w. s. BURDICK ETAL EXCAVATOR DIPPER CONSTRUCTION Filed Aug. 27, 1945 5 Sheets-Sheet l INVENTQRS Sept. 23, 1947. w. s. BURDICK EI'AL EXCAVATOR DIPPER CONSTRUCTION s Sheeis-Sheet 2 Filed Aug. 27, 1945 INVENTORS 4444 f 3 4 y [041.
Sept. 23, 1947. w. s. BURDICK ETAL EXCAVATOR DIPPER CONSTRUCTION s shets-sneet .3
Filed Aug. 27, 1945 INVENTORS m f MM Patented Sept. 23, 1947 Corporation, Milwaukee, Wis .,a I orp Wisconsin nioAvAroItnIPPER consistence I amn s ai: Battier, dale, W ,.,.jassigno rs to fHar sehfegr i l eavemiqnjrela es tqs xeerei. d fi a- The enera a je t invent .n of w d a d nner f the 'iabr etedi pe o m d of plates. nd e mi lsw de t e end t man anese street-; a lg ti9 l b a i vd hinge lugs to provide a strong but relatively'li ght WQ h R yvisedans-shel ;:iq sm e ii n b n, h man anese fr t th lba l c st n rl Manda qe er lp aie r miner. si e box ns provide a very strong connection between these I stress in the welded; joint, ,a e r tattms Si m w re wel es ind idi fi l t ai ntwhen 9. 2 s qiiihe .ie ntie i e, bv
p e lli v e sa-bee a a e weigh i beet e lsl. b9 hx d5 .v r l r'ae al comers at the dipper back, these'corriers preferably taperda 21 il ei eie ih l pit m. i t i p r so ft -the 1%.?5?!;;.?Omer; portionsare at the top .mj iii a e jt a ed 9 1 ea e bi h els' at andme s rews eith r 7 ,e. rzla eet m he v rtic t l 1oz; sections at the corner portions "of the dipper obj t of the invention is to P TQVide M i ssrs iih term-abet e tj a st th corner te ti a iiee di be si ee at the t an Jib .p rii sqf. 19. d p o or qn l ns at the sides'and back of the dipper so as to obtain an exterior framework around the dipper to reinforce the same and secure a more satisfactory distribution of severe digging loads.
A further object Z'oithe invention is to provide, a dipper having vertical box sections provid- "ed with horizontal diaphrag s atfsuch levels as to make the horizontal sides" 'of'all box sections around the entire dipper atboth topand bottom eei e liavine re s l t tsrl 1;... .dvzw ded. tethes cles p tth d nn r or ext strength in the tie between said front and dipper body.
The invention further consists in the several features hereinafter set forth and more particuthereot continuous. I Wi pbieci iheinvenfi mpr vi a T M Q n13 5 .plates 2 9,whoseib 45 1 l lifls U V.
tom cover plates 3| and 32s. :Thefront ends of the side plates 29 are l '2 a lar lyr defined y ciaiiiis'attiie conclusion e'df. "Intuit-drawings: 1 V Fi .1 is "a conventional vie jdffa"dipperofjthe shovel typeshowin'g'its'coiinectioris withthe dipper stick andboom; 3 v
X ii f bodying the inve'rition, arts being broken and: parts being .shown in's'btionl Fig. 3 "is "a back elevation view brine-hitting; Fig. 4 is a detailed horizontal sectional View taken on the 'linef ll'oi Fig. 2;
Fig. 5 is a deemed-much sectional viwtalien on the line 5-5 ofFigQ3; t Q J H in Fig. 6 is a; detailed'verticalseotion'alviewtaken on the'broken linetfi bffFi g ."2 I I i Fig. 7 is a detaild vertical sfiofialviwtflih ontheline'l-J bf FigjZ; I I I Fig. 8 'is 'adet ail'ed vertical s'eotional'viewtak'n on the line 8-'8 ofFig.4;, V pm Fig. 9 is a detailed nbrizbntn-"seeucnm view takenon the linei9-9 o f Fig.2; ig. 10 is a detailed vertical sectionalviw taken on the line llJ- -l 0 of Fig; 2.
Referring to the drawin slithenfifrferal Tidesignates the dipper front, 13 the sides, l4gtheback, I5 the hoist rope bail castings, 1'6 gthefstick pin connection, I! the doorhinges, and IS the dipper brace link connectors. H
The dipper rq'nt cas fij m jaienee 'e ganese steel casting having side portionsfl'il with projecting portions 20 and 2| l at the 9 ahdl attom thereof andthe usual replaceable teeth 22 suitably securedthereto and a door latch keeper 23 riveted 1 mm- 4 1 r Each bail casting [5 has a, base portion ZQlwhich extends. almost the length of the side of the dippe and s r d t tsp ea end-' a iseentral portion and atits front end 2'1 flhefront end of nes/tast n s ream ieimfe S-shaped joint 28 with the mating end portion 20 of the front IZ an d is welded theretoalong this joint I ackpo ons are bent tolform vertical channel sections;3J0, and and hot- I elded to the sidesjofi the dipper front l2 as are also the front ends oi the coverplates 3! and 32 see- Fig, 4. The base portion 24 ofeaoh bail' casting i5'is "welded'at its e e portion Zlfl mi l-i sp p r:ed s 1 9 Fig. '7, to its side p1a te"29. The top cover plate 3| is also welded along its bottom edge to the base portion 24 and at its back edge 33 is welded to the web of the channel section 30, see 'Fig. 4.
Each bottom side cover plate 32 is of channel section as shown in Fig. 10 and is welded at its side edges 34 to its side plate 29.
The projecting portion 2| of the front is a V- or U-shaped form and is welded as shown in Fig. 10 at 35 to the side plate 29 and is welded to the front end 36 of the bottom side cover plate 32.
The back I4 includes a fabricated steel plate 31 having forwardly bent corner portions 38 which are welded at their front edges to the side plates '29 as shown at 39 in Fig. 4 and which are welded to the rear edges 40 of the back portions of channel sections 30 to form vertically disposed box sections 4|. Diaphragms or brace plates 42 are welded to the sides of each box section in planes alined with the tops and bottoms of the side box sections 43 and 44 formed by the side plates and their cover plates as heretofore described, and are shown in Fig. 8.
The back also includes top and bottom horizontally disposed steel channel sections 45 and 46 whose edges are welded to the back of the back plate 31 as shown in Fig. to provide horizontal box sections 41 and 48 which are alined respectively with the side box sections 43 and 44, so that box sections extend continuously around the sides'and back of the dipper, the ends of the channel sections 45 and '46 being welded to the webs of vertical box sections 4| as shown at 49 in Fig. 4.
The dipper stick pin'mountings I6 are steel blocks or casting welded in spaced pairs to the box section 45, see Figs. 3 and'5.
The door hinge lugs I1 are steel blocks or castings welded in spaced pairs to the box section 46, and the inner .onesof these pairs of blocks also form one of the dipperbrace link connectors l8 as shown in Figs. 3 and 5. Theothers of the link connectors 18 are short steel blocks welded to the box section 46 as shown in Fig. 3.
stiffening plates or ribs 50 are welded to the back plate 31 and to inner pivots IB- and the inner sets of hinge lugs I! as shown in Figs. 8 and 5 and similar plates 5| are welded to said back plate, the inner blocks l8, and the box section 45 as shown in Fig. 3. A dipper door 52 of any suitable construction may be mounted on the hinge lugs I! and be provided with the usual operator controlled latch to engage in the keeper or latch plate 23.
As' shown in Fig. 1, the bail 53 for the hoist rope 54 is pivotally connected to the bail castlugs 15, the dipper stick 55 is connected to the pin mountings l6, and brace links 56 are operatively connected to the connectors I8 and the dipper stick.
We desire it to be understood that this invention is not to be limited to any particular form or arrangement of parts except in so far as such limitations are included in the claims.
What'we claim as our invention is:
1. In a dipper, the combination of a dipper front casting, bail castings having base portions having an S-shaped line butt welded connection with said front casting, and side plates also butt welded to said castings along said S-line and to said base portion lengthwise thereof.
2. In a dipper, the combination of a dipper front casting, bail castings having base portions with an S-shaped line butt welded connection with said front casting, side plates also butt welded to said castings along said s-line and to said base portion lengthwise thereof, and cover plates for said bail castings welded thereto lengthwise thereof and butt welded to said front casting along said S-line.
3. In a dipper, the combination of a dipper front casting, and bail castings, side plates and cover plates for said bail castings cooperating therewith and with said side platesto form upper side box sections, all of the parts forming said box sections being individually welded to said front casting at their adjoining edges.
4. In a dipper, the combination of a back plate having forwardly inclined side margins, and side plates having their rear portions formed to provide channel sections, said channel having welded connection with said side margins to form vertically disposed box sections at the corners of the dipper.
5. A dipper having sides and a back formed of metal plates welded together to provide vertical box sections at the corners and horizontal upper and lower box sections at the sides and back of the dipper welded to said vertical box sections.
6. A dipper having sides and a back formed of metal plates welded together to provide'vertical boxsections at the corners and horizontal upper and lower box sections at the sidesand'back of the dipper welded to said vertical box sections, said vertical box sections having horizontally-disposed plates welded thereto in planes coincident with the tops and bottoms of said horizontal box sections to make continuous box sections around the entire body of the dipper.
'7. In a dipper,- the combination of a dipper front casting having projecting pronged'portions at its lower end; side plates welded to said pronged portions, and cover plates forthe lower portions of said side plates welded theret and to said front casting and enclosing said pronged portions. v
8.'In a dipper, the combination of a dipper front casting having side projections atits top and bottom portions, side plates having a welded joint connection with said projections, and cover plates cooperating with said side plates Y to form horizontal box sectionsat the upper and lower portions of the sides of the dipper having welded joint connection with said projections bail castingshaving welded joint connections with said front casting, said side plates, and the cover plates at the upper portions of the side plates.
9. In a dipper, the combination ofa-dipper front casting, side plateshavingwelddconnection with said casting, bail castings havingbase portions substantially coextensive with said side plates and having welding connections therewith and with said front casting, parts'of s'aid welding connections being formed between apertured portions of said bail castings and said side plates.
W. s. BURDICK. KARL SCHNEIDER. REFERENCES .oI'rED The following references are of record in the file of this patent: j v
UNITED 'STATESPATENTS.
Number I Name {Date 2,185,176 Eager et al; Jani'2, 1940 2,243,965 Larsen June'3,1941
2,336,729 Harris'et a1. Dec. 14,1943
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2584416A (en) * 1949-04-01 1952-02-05 Samuel J Boehringer Dipper
US2724518A (en) * 1950-07-29 1955-11-22 Edward J Charlton Power dipper construction
US2924345A (en) * 1957-10-03 1960-02-09 Tage Leijon Digging-bucket for loading machines
US5815958A (en) * 1996-12-30 1998-10-06 The Frog, Switch & Manufacturing Co. Excavator dipper latch assembly having removable tapered latch bar
US20130318840A1 (en) * 2012-06-01 2013-12-05 Esco Corporation Lip for excavating bucket
US20140230293A1 (en) * 2011-09-26 2014-08-21 Bradken Resources Pty Limited Excavation bucket
US10519621B2 (en) 2011-05-02 2019-12-31 Joy Global Surface Mining Inc Straight taper dipper

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2185176A (en) * 1938-01-27 1940-01-02 Bucyrus Erie Co Excavating dipper
US2243965A (en) * 1940-03-20 1941-06-03 Pettibone Mullken Corp Dipper
US2336729A (en) * 1942-12-07 1943-12-14 American Brake Shoe Co Excavating implement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2185176A (en) * 1938-01-27 1940-01-02 Bucyrus Erie Co Excavating dipper
US2243965A (en) * 1940-03-20 1941-06-03 Pettibone Mullken Corp Dipper
US2336729A (en) * 1942-12-07 1943-12-14 American Brake Shoe Co Excavating implement

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2584416A (en) * 1949-04-01 1952-02-05 Samuel J Boehringer Dipper
US2724518A (en) * 1950-07-29 1955-11-22 Edward J Charlton Power dipper construction
US2924345A (en) * 1957-10-03 1960-02-09 Tage Leijon Digging-bucket for loading machines
US5815958A (en) * 1996-12-30 1998-10-06 The Frog, Switch & Manufacturing Co. Excavator dipper latch assembly having removable tapered latch bar
US10519621B2 (en) 2011-05-02 2019-12-31 Joy Global Surface Mining Inc Straight taper dipper
US10934682B2 (en) 2011-05-02 2021-03-02 Joy Global Surface Mining Inc Straight taper dipper
US20140230293A1 (en) * 2011-09-26 2014-08-21 Bradken Resources Pty Limited Excavation bucket
US9903092B2 (en) * 2011-09-26 2018-02-27 Bradken Resources Pty Limited Excavation bucket
US20130318840A1 (en) * 2012-06-01 2013-12-05 Esco Corporation Lip for excavating bucket
US9963853B2 (en) * 2012-06-01 2018-05-08 Esco Corporation Lip for excavating bucket
US10774499B2 (en) 2012-06-01 2020-09-15 Esco Group Llc Lip for excavating bucket
US20200370271A1 (en) * 2012-06-01 2020-11-26 Esco Group Llc Lip for excavating bucket

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