US1874783A - Digger tooth - Google Patents

Digger tooth Download PDF

Info

Publication number
US1874783A
US1874783A US582958A US58295831A US1874783A US 1874783 A US1874783 A US 1874783A US 582958 A US582958 A US 582958A US 58295831 A US58295831 A US 58295831A US 1874783 A US1874783 A US 1874783A
Authority
US
United States
Prior art keywords
web
wedge
base
jaws
pin
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
US582958A
Inventor
Mekeel Van Cortright
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US582958A priority Critical patent/US1874783A/en
Application granted granted Critical
Publication of US1874783A publication Critical patent/US1874783A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins

Definitions

  • Figure 2 is a perspective view of the base.v
  • Figure 3 is a perspective view of a wedge used in locking the parts in assembled relation.
  • FIG. 4 is a perspective view of a cotter pin which coacts with the wedge.
  • Figure 5 is a perspective view similar to Figure 1 with the wedge and cotter pin shown in assembled relation for purposes of i illustration, but without the base to which they are to be connected when in such assembled relation.
  • Figure 6 is a view partly in side elevation and partly in longitudinal section in a median planel extending at right angles to the edge of the tooth.
  • Figure 7 is-a view representing a transverse section through the tooth indicated by the line 7+-7 of Figure 6.
  • Figure 8 is a top plan view of the assembly of base'and tooth shown partially in section in a plane indicated by the line 8 8 of Fig- ⁇ ure 6.
  • the point l1 is of the usual wedge shaped section and is provided with recesses 15 on its side faces to receive and to be closely engaged by the nibs 12 of the nose of the basev 10.
  • 16 indicates an interior gusset cut out at the center as indicated at 17 ( Figure l) to clear the transverse web 13 on the base when the two parts of the tooth are assembled.
  • Said gusset has vertically spaced rear extensions or jaws 18, 18 which project beyond the base of the point and are adapted to be inserted into the recess 14 in the base, extending therein back of the web 13. The said extensions or jaws 18 when engaged -in the recess 14 in the base, prevent distortion of the point in service and provide means to be expanded in the recess for locking the two parts ,m
  • the jaws 18, 18 are provided at their rear ends with converging faces 19 ⁇ 19.
  • 2O indicates an elongated wedge adapted to engage in the converging faces 19, 19 of the jaws 18 to expand said jaws in the recess, as shown in Figure 6.
  • 21 indicates a cotter pin which is adapted to be driven into the space between the rear end of the web 13 and the forward face of the wedge 20, the' proximate faces of said web 13 and wedge 20 being, respectively, provided with rounded notches 13a, 20a, to receive said pin.
  • the pin 21 is also tapered so 'that when driven into the space between the rear edge of the web 13 and the front face of the wedge 20, it will force said wedge to expand the jaws 18, 18.
  • the jaws 18, 18 are provided with aligned apertures, 18a, 18a for the insertion of the cotter pin 21 and the base 10 is provided with apertures 10a, 10b with their axes in alignment to receive the cotter pin 21.
  • the said apertures 10a and 10b in the base and the groove 13a on the rear edge of the web are made in alignment so that when the cotter pin 21 is driven through the apertures 18a, 18a in the jaws 18, the forward side of the cotter pin will engage the base at the top and bottom of the pin and also at the intermediate part of the pin by the web 13.
  • Suitdownwardly converging top and bottom lo able laterally opening apertures 206 are formed in the side walls of the base for the insertion of the wedge 20 into the space be tween the jaws 18, 18 when assembling.
  • the pin 21 is split as indicated at 21a at its lower small end for convenience in expanding it in the bottom recess 10b in the base to lock it in position.
  • the wedge 20 is then inserted through one of the apertures 20?) into the space between the jaws 18.
  • the pin 21 is then inserted through the upper aperture 10a in the base down into the space between the web 13 and the wedge 2O and then driven downwardly until the jaws 18 are forced rearwardly into the base recess 14, drawing the faces of recess 15 in the point firmly against the faces of the bifurcated base'nibs 12, and then suitably expanding thejaws 18 in the recess 14.
  • the' pin 21 is easily driven out through the top aperture 10a, which relieves the pressure on the wedge.
  • the tap of a hammer or other tool will dislodge the wedge 20, which may be driven out through one of the apertures 20?), whereupon the point may be removed from the base and reversed.
  • a digger tooth a base having spaced nibs, an integral transverse web connecting said nibs and arecess extending back of said web, a point having side recesses to receive said nibs, a transverse space tovreceive said web, and spaced jaws which engage in said recess of the base back of said web, a wedge extending transversely between said jaws, and a pin extending at right angles to the plane of said web and wedge and engaged solely between the two.
  • a base having spaced nibs, an integral transverse web connecting said nibs and being provided with a recess extending back of said web, a point having recesses to receive said nibs, a transverse space to receive said web, and spaced jaws which engage in said recess back of said web, a
  • a base having spaced nibs, an integral transverse web connecting said nibs and being provided with a recess extending back of' said web, a point having recesses to receive said nibs, a' transverse space to receive said web, and spaced jaws which enga-ge in said recess back of said web, a wedge extending transversely between said jaws and adapted to expand the same, a tapered pin extending at right angles to the plane of said web and wedge and engaged solely between the two, the proximate faces of said web and wedge being provided with grooves to seat said pin, and said base and jaws being provided with suitable apertures for insertion of said pin.
  • a base having spaced nibs, an integral transverse web connecting said nibs and being provided with a recess extending back of said web, a point having recesses to receive said nibs, a transverse space to receive said web, and spaced jaws which engage in said recess back of said web, a wedge extending transversely between said jaws and adapted to expand the same,- a tapered pin extending at right angles to the plane of said web and wedge and engaged solely between the two, the proximate faces of said web and wedge being provided with grooves to seat said pin, and said base and jaws being provided with suitable apertures for insertlon of said pin and wedge.

Description

A1182 30, 1932 VAN CORTRIGHTMEKEEL. 1,874,783
DIGG ER TOOTH Filed Dec. 24. 1951 2 Sheets-Sheet l Aug- 30, 1932- VAN coRTRlGH-r MEKEEL 1,874,783
l BIGGER TOOTH 2 sheets-sheetV 2 Filed Dec. 24. 1931 Patented Aug. 30, 1932 UNITED STATES VAN' 4COR'IJB'IIIGHT HEKEEL, OF WAUWATOSA, WISCONSIN BIGGER TOOTH Application illed December 24, 1981.y Serial No. 582,958.
struction embodying the features of my in i vention.
Figure 2 is a perspective view of the base.v
Figure 3 is a perspective view of a wedge used in locking the parts in assembled relation.
i Figure 4 is a perspective view of a cotter pin which coacts with the wedge.
Figure 5 is a perspective view similar to Figure 1 with the wedge and cotter pin shown in assembled relation for purposes of i illustration, but without the base to which they are to be connected when in such assembled relation. v
Figure 6 is a view partly in side elevation and partly in longitudinal section in a median planel extending at right angles to the edge of the tooth.
Figure 7 is-a view representing a transverse section through the tooth indicated by the line 7+-7 of Figure 6. i
Figure 8 is a top plan view of the assembly of base'and tooth shown partially in section in a plane indicated by the line 8 8 of Fig-` ure 6.
Referring now to that embodiment of the invention illustrated in the drawings -10 indicates the base and 11 the point of my improved digger tooth as embodied in a reversible dipper tooth. The nose of the base is bifurcated to provide spaced nibs 12, 12 which are connected together by an integral transverse web 13. Said web holds said nibs rigidly in spaced relation and prevents their spreading. Above and below and back of the web 13 the base is cored to provide a recess 14 to receive. the connecting member of the point now to be described.
The point l1 is of the usual wedge shaped section and is provided with recesses 15 on its side faces to receive and to be closely engaged by the nibs 12 of the nose of the basev 10. 16 indicates an interior gusset cut out at the center as indicated at 17 (Figure l) to clear the transverse web 13 on the base when the two parts of the tooth are assembled. Said gusset has vertically spaced rear extensions or jaws 18, 18 which project beyond the base of the point and are adapted to be inserted into the recess 14 in the base, extending therein back of the web 13. The said extensions or jaws 18 when engaged -in the recess 14 in the base, prevent distortion of the point in service and provide means to be expanded in the recess for locking the two parts ,m
of the point together.
The jaws 18, 18 are provided at their rear ends with converging faces 19` 19. 2O indicates an elongated wedge adapted to engage in the converging faces 19, 19 of the jaws 18 to expand said jaws in the recess, as shown in Figure 6.. 21 indicates a cotter pin which is adapted to be driven into the space between the rear end of the web 13 and the forward face of the wedge 20, the' proximate faces of said web 13 and wedge 20 being, respectively, provided with rounded notches 13a, 20a, to receive said pin. The pin 21 is also tapered so 'that when driven into the space between the rear edge of the web 13 and the front face of the wedge 20, it will force said wedge to expand the jaws 18, 18.
The jaws 18, 18 are provided with aligned apertures, 18a, 18a for the insertion of the cotter pin 21 and the base 10 is provided with apertures 10a, 10b with their axes in alignment to receive the cotter pin 21. The said apertures 10a and 10b in the base and the groove 13a on the rear edge of the web are made in alignment so that when the cotter pin 21 is driven through the apertures 18a, 18a in the jaws 18, the forward side of the cotter pin will engage the base at the top and bottom of the pin and also at the intermediate part of the pin by the web 13. Suitdownwardly converging top and bottom lo able laterally opening apertures 206 are formed in the side walls of the base for the insertion of the wedge 20 into the space be tween the jaws 18, 18 when assembling.
From examination of Figure 6, it will be observed that when the pin 21 is driven into the space between the web 13 and the wedge 20, it will be put into compression only and that there will be no shearing stress thereon. As a result, a very efficient and sure construction for operating the wedge locking means and for retaining the wedge in expandlng relation between the jaws is provided.
The pin 21 is split as indicated at 21a at its lower small end for convenience in expanding it in the bottom recess 10b in the base to lock it in position.
It is obvious that the improved construction of dipper tooth is readily and easily assembled. The two parts, point and base, are
first brought together to bring the jaws 18, 18 of the point into the recess 14 ofthe base. The wedge 20 is then inserted through one of the apertures 20?) into the space between the jaws 18. The pin 21 is then inserted through the upper aperture 10a in the base down into the space between the web 13 and the wedge 2O and then driven downwardly until the jaws 18 are forced rearwardly into the base recess 14, drawing the faces of recess 15 in the point firmly against the faces of the bifurcated base'nibs 12, and then suitably expanding thejaws 18 in the recess 14. When the point is to be reversed, the' pin 21 is easily driven out through the top aperture 10a, which relieves the pressure on the wedge. The tap of a hammer or other tool will dislodge the wedge 20, which may be driven out through one of the apertures 20?), whereupon the point may be removed from the base and reversed.
I claim as my invention 1. In a digger tooth, a base having spaced nibs, an integral transverse web connecting said nibs and arecess extending back of said web, a point having side recesses to receive said nibs, a transverse space tovreceive said web, and spaced jaws which engage in said recess of the base back of said web, a wedge extending transversely between said jaws, and a pin extending at right angles to the plane of said web and wedge and engaged solely between the two.
2. In a digger tooth, a base having spaced nibs, an integral transverse web connecting said nibs and being provided with a recess extending back of said web, a point having recesses to receive said nibs, a transverse space to receive said web, and spaced jaws which engage in said recess back of said web, a
wedge extending transversely between said v jaws and adapted to expand the same, a pin extending at right angles to the plane of said web and wedge and engaged solely between the two, and said base and jaws being provided with suitable apertures for insertion of said pin.
3. In a digger tooth, a base having spaced nibs, an integral transverse web connecting said nibs and being provided with a recess extending back of' said web, a point having recesses to receive said nibs, a' transverse space to receive said web, and spaced jaws which enga-ge in said recess back of said web, a wedge extending transversely between said jaws and adapted to expand the same, a tapered pin extending at right angles to the plane of said web and wedge and engaged solely between the two, the proximate faces of said web and wedge being provided with grooves to seat said pin, and said base and jaws being provided with suitable apertures for insertion of said pin.
4. In a digger tooth, a base having spaced nibs, an integral transverse web connecting said nibs and being provided with a recess extending back of said web, a point having recesses to receive said nibs, a transverse space to receive said web, and spaced jaws which engage in said recess back of said web, a wedge extending transversely between said jaws and adapted to expand the same,- a tapered pin extending at right angles to the plane of said web and wedge and engaged solely between the two, the proximate faces of said web and wedge being provided with grooves to seat said pin, and said base and jaws being provided with suitable apertures for insertlon of said pin and wedge.
In testimony that I claim the foregoing as my invention, I affix my signature this 16 day of December, A. D. 1931.
VAN CORTRIGHT MEKEEL.
US582958A 1931-12-24 1931-12-24 Digger tooth Expired - Lifetime US1874783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US582958A US1874783A (en) 1931-12-24 1931-12-24 Digger tooth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US582958A US1874783A (en) 1931-12-24 1931-12-24 Digger tooth

Publications (1)

Publication Number Publication Date
US1874783A true US1874783A (en) 1932-08-30

Family

ID=24331115

Family Applications (1)

Application Number Title Priority Date Filing Date
US582958A Expired - Lifetime US1874783A (en) 1931-12-24 1931-12-24 Digger tooth

Country Status (1)

Country Link
US (1) US1874783A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2891333A (en) * 1954-09-10 1959-06-23 Lesher W Van Buskirk Digging teeth for excavating, dippers, etc.
US3188756A (en) * 1962-12-17 1965-06-15 Bucyrus Erie Co Digging tooth with resilient plug in rearwardly extending shank
US3388488A (en) * 1965-11-29 1968-06-18 Duplessis Gerard Bucket and adaptor assembly for digging teeth
US3413739A (en) * 1964-10-09 1968-12-03 Poclain Sa Means for fixing a digging tooth to the leading edge of the tool of an earth workingmachine
US3471954A (en) * 1966-07-18 1969-10-14 Machinery Inc Const Resilient ball retainer for tooth and holder
US5068986A (en) * 1990-08-30 1991-12-03 Esco Corporation Excavating tooth point particularly suited for large dragline buckets
US5937551A (en) * 1997-11-07 1999-08-17 Columbia Steel Casting Co., Inc. Lock system for excavating tooth point and adapter
US5966849A (en) * 1997-11-07 1999-10-19 Columbia Steel Casting Co., Inc. Lock system for excavating tooth point and adapter and for rigging
US20040010949A1 (en) * 2000-10-03 2004-01-22 Laguarda Lluis Morales Coupling system for the teeth of an excavator
US20140250743A1 (en) * 2012-12-18 2014-09-11 Komatsu Ltd. Excavating tooth and ground engaging tool
US20220002983A1 (en) * 2020-07-06 2022-01-06 Caterpillar Inc. Retention system for boltless cutting edges

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2891333A (en) * 1954-09-10 1959-06-23 Lesher W Van Buskirk Digging teeth for excavating, dippers, etc.
US3188756A (en) * 1962-12-17 1965-06-15 Bucyrus Erie Co Digging tooth with resilient plug in rearwardly extending shank
US3413739A (en) * 1964-10-09 1968-12-03 Poclain Sa Means for fixing a digging tooth to the leading edge of the tool of an earth workingmachine
US3388488A (en) * 1965-11-29 1968-06-18 Duplessis Gerard Bucket and adaptor assembly for digging teeth
US3471954A (en) * 1966-07-18 1969-10-14 Machinery Inc Const Resilient ball retainer for tooth and holder
WO1992004507A1 (en) * 1990-08-30 1992-03-19 Esco Corporation Excavating tooth point with resilient lock
US5068986A (en) * 1990-08-30 1991-12-03 Esco Corporation Excavating tooth point particularly suited for large dragline buckets
US5937551A (en) * 1997-11-07 1999-08-17 Columbia Steel Casting Co., Inc. Lock system for excavating tooth point and adapter
US5966849A (en) * 1997-11-07 1999-10-19 Columbia Steel Casting Co., Inc. Lock system for excavating tooth point and adapter and for rigging
US20040010949A1 (en) * 2000-10-03 2004-01-22 Laguarda Lluis Morales Coupling system for the teeth of an excavator
US20140250743A1 (en) * 2012-12-18 2014-09-11 Komatsu Ltd. Excavating tooth and ground engaging tool
US9267270B2 (en) * 2012-12-18 2016-02-23 Komatsu Ltd. Excavating tooth and ground engaging tool
US9464411B2 (en) 2012-12-18 2016-10-11 Komatsu Ltd. Ground engaging tool
US20220002983A1 (en) * 2020-07-06 2022-01-06 Caterpillar Inc. Retention system for boltless cutting edges

Similar Documents

Publication Publication Date Title
US1874783A (en) Digger tooth
US3774324A (en) Digger teeth
US7926207B2 (en) Wear assembly and components thereof, which is intended for machines that are used to move materials such as earth and stones
US2568075A (en) Cap fastener for excavating bucket digging teeth
US1917431A (en) Excavating tooth base with laterally interlocked points
US1992591A (en) Dipper tooth and front for excavating dippers
US3256622A (en) Tooth retainer assembly
US2124230A (en) Detachable point for earth digging teeth
US3090653A (en) Hand tools
US2798403A (en) Sectional retainer pin having inwardly and outwardly facing shoulders thereon
US1951988A (en) Digger tooth
US3879867A (en) Fastening means for retaining a digger tooth in a socket
US3410010A (en) Dipper tooth
US4163581A (en) Retaining means for the connecting pin which joins a bit holder to a base member
US1461136A (en) Dipper tooth
US1805527A (en) Reversible dipper tooth
US2904908A (en) Dipper teeth
US1787695A (en) Dipper tooth
US2990634A (en) Digger tooth
US2215948A (en) Drilling tool
US444956A (en) Auger
US2365229A (en) Pivoted link chain
US1780397A (en) Dipper tooth
US2101864A (en) Rock drill
US3127153A (en) Resilient locking mechanism for a