US2472726A - Excavating and load handling machine - Google Patents

Excavating and load handling machine Download PDF

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Publication number
US2472726A
US2472726A US629461A US62946145A US2472726A US 2472726 A US2472726 A US 2472726A US 629461 A US629461 A US 629461A US 62946145 A US62946145 A US 62946145A US 2472726 A US2472726 A US 2472726A
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excavating
mounting plate
superstructure
supporting plate
load handling
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US629461A
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Louis R Russell
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INSLEY Manufacturing CORP
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INSLEY Manufacturing CORP
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    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
    • E02F9/12—Slewing or traversing gears
    • E02F9/121—Turntables, i.e. structure rotatable about 360°
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
    • E02F9/12—Slewing or traversing gears

Definitions

  • This invention relates "to excavating "and load handling machines *having a Vehicular chassis and a rotatable "superstructure mounted thereon, 'and'more' particularly t'oan improved 'm'ounting forsaid”superstructure.
  • An object “of this "invention is to "produce an interchangeable load "handling and excavating machine 'ofthe type described, in whichitherotatable' superstructure may .be shiited'longitudimany in “relation to "the "supporting chassis for more eflicient usean'd'sa'feroperation.
  • Another "object of thiszlnverlti'on is .to "produce an excavating enema handling machine of the type described having an "improved superstructure mounting.
  • Another object-of this invention is toproduce a power operatedload handling -and-excavatmg 'mac hine of the-typed'escribed, innr'hieh'available power mean-s areadapted' toeffect "thelongituthnal movement "of *the superstructure Lrelaltive to the chassis.
  • Another object is to"produc-e improved 'means for lockingthe adjusted sup'erstruoturein the desired longitudinal posi-tionrlativeto the hazssis.
  • Figure 2 21s “a -"detailed 'view' taken “along the Tine 2- 2ofF1gure 1, s'hoWin'gthe'etemeiits'which comprise theinvention mu " Figure ""3 "is .a "sectional view “taken “along “the line .3- '3 "(of Figure "The illustrated (embodiment or the invention shows “a "caib “I 0 and”: motor 'with an attached "truck”chassis fl I mounte'ii' uponaipair of tandem ruliibefitired tirivingwheels I 2.
  • Figure 1 further shows a turntable "T3 mounted 'fu'pon the "tru'ok thassls "I'l 'and'supporting "asuperstruoture W whih, as illustrated, is adapted with power means'Pandattachments IEfo'r excavating'purposes, but'mayinterchahgeably be adapted l'l'or power operated loadrhandling upon substitution "(if the crane attachments "for the "illustrated shovel "attachments l5.
  • the turntable T3 is "secured to a rectangular shapedbase plate "1'6 "whieh is movable upon "a mountingpl'ate I”! which in turn'is secured “to the'c'h'as's'isil.
  • the lateral edge portions of the basepiate are disposed within longitudinal guide slots [8 'f'formed between "the 'Uvethang'inefiafiges 1'9 of guidemembers "2'0 and themomititigfiiate "I 'Ito which said guide memhersereattaohe'd.
  • I-n'terconn'ecting means Tor 'e-fiecting the movementor the base plate ffi'an'd its associated super- 'structure "M relativeto 'the mounting'pla'te I! and its-'ass'o'ciatedchassi's I 1 areillustra'ted in Figures 2 and 3, saidmeans including an elongate rat'ik her QPsecumdto theiiziternrediateportion of the mountingplate i 1 with 'l'teet-h disposed I in 'a lineparallelingthe :desired superstructure movement, "an "enmeshed'spurjpinion "24 located.
  • the mounting plate I! is provided with multiple sets of bolt apertures 21, a set of which becomes registered with a set of similarly spaced bolt apertures 28 in the base plate [6 when the adjoining plates l6 and I! are in the desired adjusted position.
  • Bolt 29 and nut 29a may then be adapted to secure the positioned elements.
  • the longitudinally disposed guide members prevent the lateral or vertical movement of the base plate 16 in relation to the mounting plate 11, it may be desirable to adapt other means for locking the element in the desired position of adjustment.
  • An excavating and load handling machine comprising a trailer frame, a mounting plate on said frame, a guideway on said mounting plate extending longitudinally of said vehicle, a supporting plate on said mounting plate and adapted for longitudinal movement in relation to said mounting plate along said guideway be? tween a rearwardly disposed excavating position and a forwardly disposed load handling position, a turntable and superstructure on said supporting plate, said superstructure including a crane bar, a vertical rotatable shaft concentric with and attached to said spur pinion, said shaft extending concentrically through said turntable, and means in said superstructure for rotating said shaft.
  • An excavating and load handling machine comprising a truck chassis, an elongated guideway on said chassis extending longitudinally thereof, a turntable, bearing means on said turntable mounting the latter for longitudinal movement along said guideway, said guideway including means for limiting the vertical movement of said turntable with respect to said chassis, and a superstructure mounted on said turnand operating means therefor, and cooperating gearing on said plates, respectively, for driving said supporting plate longitudinally on said mounting plate.
  • said 00- operating gearing including rack bar longitudinally disposed and attached to said mounting plate, a spur pinion rotatably mounted on said supporting plate and enmeshed with said rack bar, and means in said superstructure for rotating said spur pinion thereby to move said turntable and support longitudinally in relation to said mounting plate.
  • a machine as claimed in claim 1 said cooperating gearing including a rack bar longitudinally disposed and attached to said mounting plate, a spur pinion enmeshed with said rack table and movable therewith along said guideway between a rearwardly disposed excavating position and a forwardly disposed load-handling position.
  • An excavating and load handling machine comprising a trailer frame, a mounting plate, a supporting plate on said mounting plate and adapted for longitudinal movement in relation to said mounting plate between a rearwardly disposed excavating position and a forwardly disposed load handling position, a turntable and superstructure on said supporting plate, said superstructure including a crane and operating means therefor, and interconnecting means adapted for moving said supporting plate longitudinally in relation to said mounting plate, said mounting plate being rectangular and having flanged guides attached to the lateral edges thereof, said supporting plate being enclosed by said flanges thereby to restrict the lateral and vertical movement of said supporting plate.
  • An excavating and load handling machine comprising a trailer frame, a mounting plate, a supporting plate on said mounting plate and adapted for longitudinal movement in relation to said mounting plate between a rearwardly disposed excavating position and a forwardly disposed load handling position, a turntable and superstructure on said supporting plate, said superstructure including a crane and operating means therefor, interconnecting means adapted for moving said supporting plate longitudinally in relation to said mounting plate, and locking means for securing said supporting plate in its longitudinally adjusted position.
  • An excavating and load handling machine comprising a trailer frame, a mounting plate, a supporting plate on said mounting plate and adapted for longitudinal movement in relation to said mounting plate between a rearwardly disposed excavating position and a forwardly disposed load handling position, a turntable and superstructure on said supporting plate, said superstructure including a crane and operating means therefor, interconnecting means adapted for moving said supporting plate longitudinally in relation to said mounting plate, said mounting plate having multiple sets of spaced apertures therein, said supporting plate having a set of similarly spaced apertures therein, and means adapted for connecting the apertures which are in registry when the supporting plate is in the desired longitudinally adjusted position.
  • An excavating and load handling machine comprising a trailer frame, a mounting plate, a supporting plate on said mounting plate and adapted for longitudinal movement in relation to said mounting plate between a rearwardly disposed excavating position and a forwardly dis+ posed load handling position, a turntable and superstructure on said supporting plate, said superstructure including a crane and operating" means therefor, interconnecting means adapted for moving said supporting plate longitudinally in relation to said mounting plate, said mounting plate being rectangular and having a pair of flanged guides attached to the lateral edges thereof, and multiple laterally disposed rollers attached to the edge portions of the supporting plate and bearing against the flanged portions of said guides, thereby to serve as anti-fraction means.
  • An excavating and load handling machine comprising a rubber tired vehicle, a mounting plate on said vehicle, a guideway on said mounting plate extending longitudinally of said vehicle, a supporting plate movably mounted on said mounting plate and engaging said guideway, a turntable and superstructure assembly on said supporting plate, motor means on said vehicle for moving said supporting plate and the assembly thereon between two longitudinal positions, the first of which positions constituting a load handling position and the second of which constituting an excavating position, and docking means operatively engaging between said plates for holding the supporting plate and the assembly thereon selectively in either of said positions.
  • An excavating and load handling machine comprising a rubber-tired vehicle, a mounting plate on said vehicle, a supporting plate movably mounted on said mounting plate, a guideway on one of said plates extending longitudinally of said vehicle, bearing means on the other of said plates engaging said guideway whereby to prevent lateral movements of said supporting plate with respect to said mounting plate, a turntable and superstructure assembly on said supporting plate, a power supply means in said superstructure, power transmission means in said superstructure for driving excavating and load handling equipment, drive gearing mounted on said plates for effecting longitudinal movement of said supporting plate and the assembly thereon between load handling and excavating portions, respectively upon operation of said drive gearing, and power take-off means connecting said power supply means and said gearing.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)

Description

June 7, 1949. L RUSSELL 2,472,726
EXCAVATING AND ow HANDLING momma Filed Nov. 19, 1945 2 sheets-sheet 1 mvel I I E. 1.
INVENTOR LOUIS R. RUSSELL ATTORNEY June 7,1949. R. RUSSELL EXOAVATING AND LOAD HANDLING MACHINE Filed Nov. 19, 1945 2 Sheets-Sheet 2 m a M m n w. a
vmw QN INVE NTOR 'LOUIS R. RUSSELL l MAP BY v ATTORNEY Patented June 7, 1949 "472,726 nxmvummemnfinouunaunme "MACHINE mom-s it. RussellflEdison, Ohio, assignw-tohrsley I'mmu'faetu'ring-mm:orattonflniiianapolieiinilt,
a oorporation o'fl'indiana Application N ouemb'er 19, LB Q'BQSeriGLNo.329:461
10' -Ulaims. 1
This invention relates "to excavating "and load handling machines *having a Vehicular chassis and a rotatable "superstructure mounted thereon, 'and'more' particularly t'oan improved 'm'ounting forsaid"superstructure.
Theusefulness of machines of thistype can be :greatly increased with "added stabilitvand working range. Therefore, "when machines of this typeare used 'for' load ""han'dlirfg, it is desirebie'to improve the stability by moving the "center of rotationof th'e' craneforwardtof the center of "thevhicle -chassis. However, when me.- chines "of "this type areused as an excavator, fit is desirable that the 'center "of rotation 'of'ithe shovel *be m'ovednearer the rear of the "vehicle chassis wheregreaterworkin'g range isavajilaib'le.
An object "of this "invention is to "produce an interchangeable load "handling and excavating machine 'ofthe type described, in whichitherotatable' superstructure may .be shiited'longitudimany in "relation to "the "supporting chassis for more eflicient usean'd'sa'feroperation.
Another "object of thiszlnverlti'on is .to "produce an excavating enema handling machine of the type described having an "improved superstructure mounting.
*Another "obj ect'of this invention is "to r produce an improved mounting for load handling and excavating machines of the type described, 'in
which anti-friction means -are used to 'gulde the longitudinal movement" of the' superstru'cture relettiveto the vehicular Chassis.
Another object-of this inventionis toproduce a power operatedload handling -and-excavatmg 'mac hine of the-typed'escribed, innr'hieh'available power mean-s areadapted' toeffect "thelongituthnal movement "of *the superstructure Lrelaltive to the chassis.
Another 4 object or this invention is "to produce interconnecting spur 'pinion'andrack har means operable =by available power to effect the desired longitudinal adjustment.
Another object is to"produc-e improved 'means for lockingthe adjusted sup'erstruoturein the desired longitudinal posi-tionrlativeto the hazssis.
Other 1 objects or this inventionwill appear in the following descriptionendclaims andfor purposes or illustration, but not "of "limitation, an
embodiment "of the invention is shown "in the accompanying drawings in which :Figure -'1 ls a side -elevation of the meme pomp-rising the invention, s'howii'rg 'the ""rotatalo'ie superstructure intherearwardly position'f'for-use as an --"excavator;
Figure 2 21s "a -"detailed 'view' taken "along the Tine 2- 2ofF1gure 1, s'hoWin'gthe'etemeiits'which comprise theinvention mu "Figure ""3 "is .a "sectional view "taken "along "the line .3- '3 "(of Figure "The illustrated (embodiment or the invention shows "a "caib "I 0 and": motor 'with an attached "truck"chassis fl I mounte'ii' uponaipair of tandem ruliibefitired tirivingwheels I 2. "Figure 1 further shows a turntable "T3 mounted 'fu'pon the "tru'ok thassls "I'l 'and'supporting "asuperstruoture W whih, as illustrated, is adapted with power means'Pandattachments IEfo'r excavating'purposes, but'mayinterchahgeably be adapted l'l'or power operated loadrhandling upon substitution "(if the crane attachments "for the "illustrated shovel "attachments l5.
The turntable T3 is "secured to a rectangular shapedbase plate "1'6 "whieh is movable upon "a mountingpl'ate I"! which in turn'is secured "to the'c'h'as's'isil. Ass'hown 'inFigure 3, the lateral edge portions of the basepiateare disposed within longitudinal guide slots [8 'f'formed between "the 'Uvethang'inefiafiges 1'9 of guidemembers "2'0 and themomititigfiiate "I 'Ito which said guide memhersereattaohe'd. "Nuinerousto'lt: and nut 2| are used to secure the "guide members '20 to the lateral edges of the .moun'ting plate "I7, and thereby the "hase plate 16 is limitedsolely to lon'gituuin-alimovementsrelative to said l'mounting piste. 'Anti rricti'on'meansaidaptedzto assist and guide the longitudinal "movement or the base plate relativetothestationaryzmountingxthereby toipreveritb'inding, areshowninFigures '2 and"3, 'Y'seid=axiti fiietionmeans comprising multiple lateraily' disposed rollers' fiafl 'securedtorthe base plate '-l6-'enc'1"bearing"n gafinsttheside walls 19a of the flanged guide memb ers"2"0.
I-n'terconn'ecting means Tor 'e-fiecting the movementor the base plate ffi'an'd its associated super- 'structure "M relativeto 'the mounting'pla'te I! and its-'ass'o'ciatedchassi's I 1 areillustra'ted in Figures 2 and 3, saidmeans including an elongate rat'ik her QPsecumdto theiiziternrediateportion of the mountingplate i 1 with 'l'teet-h disposed I in 'a lineparallelingthe :desired superstructure movement, "an "enmeshed'spurjpinion "24 located. conceritr'rc'a ily with and below the turntable, said spur flpinion being rconeentrically mounted upon the'il-ower end I (if ta propel' shaftTZS extending ver tical'ly through "a central aperture in the turntable in which .it isireelyrotajtable. The propel "shaft -1r'nay be "actuated Ii by a gpower takeao'ff fideiiving' its power from the "power "unit 1? Lin the propel shaft in the opposite direction will result in rearward movement of the superstructure and associated elements.
It is expedient to provide for locking means to retain the elements in their adjusted position during the operation of the machine as an excavator or crane. For this purpose, the mounting plate I! is provided with multiple sets of bolt apertures 21, a set of which becomes registered with a set of similarly spaced bolt apertures 28 in the base plate [6 when the adjoining plates l6 and I! are in the desired adjusted position. Bolt 29 and nut 29a may then be adapted to secure the positioned elements. In View of the fact that the longitudinally disposed guide members prevent the lateral or vertical movement of the base plate 16 in relation to the mounting plate 11, it may be desirable to adapt other means for locking the element in the desired position of adjustment.
It is manifest from the above description that I have produced a novel, yet simple mechanical means for securing added balance and efiiciency in interchangeable excavating and load handling machines which results from the proper adjustment of the turntable and superstructure in relation to its supporting chassis. The longitudinal movements are produced through the power means made available from within the superstructure. Thus the proper position is secured without the effort and difiiculties heretofore required. It is to be understood that the described adjustable mounting may be used in other machines of the type having a superstructure supported upon a mounting.
It is to be further understood that other changes in construction, arrangement and operation may be effected without departing from the spirit of the invention especially as defined in the appended claims.
What I claim is:
1. An excavating and load handling machine comprising a trailer frame, a mounting plate on said frame, a guideway on said mounting plate extending longitudinally of said vehicle, a supporting plate on said mounting plate and adapted for longitudinal movement in relation to said mounting plate along said guideway be? tween a rearwardly disposed excavating position and a forwardly disposed load handling position, a turntable and superstructure on said supporting plate, said superstructure including a crane bar, a vertical rotatable shaft concentric with and attached to said spur pinion, said shaft extending concentrically through said turntable, and means in said superstructure for rotating said shaft.
4. An excavating and load handling machine, comprising a truck chassis, an elongated guideway on said chassis extending longitudinally thereof, a turntable, bearing means on said turntable mounting the latter for longitudinal movement along said guideway, said guideway including means for limiting the vertical movement of said turntable with respect to said chassis, and a superstructure mounted on said turnand operating means therefor, and cooperating gearing on said plates, respectively, for driving said supporting plate longitudinally on said mounting plate.
2. A machine as claimed in claim 1, said 00- operating gearing including rack bar longitudinally disposed and attached to said mounting plate, a spur pinion rotatably mounted on said supporting plate and enmeshed with said rack bar, and means in said superstructure for rotating said spur pinion thereby to move said turntable and support longitudinally in relation to said mounting plate.
3. A machine as claimed in claim 1 said cooperating gearing including a rack bar longitudinally disposed and attached to said mounting plate, a spur pinion enmeshed with said rack table and movable therewith along said guideway between a rearwardly disposed excavating position and a forwardly disposed load-handling position.
5. An excavating and load handling machine comprising a trailer frame, a mounting plate, a supporting plate on said mounting plate and adapted for longitudinal movement in relation to said mounting plate between a rearwardly disposed excavating position and a forwardly disposed load handling position, a turntable and superstructure on said supporting plate, said superstructure including a crane and operating means therefor, and interconnecting means adapted for moving said supporting plate longitudinally in relation to said mounting plate, said mounting plate being rectangular and having flanged guides attached to the lateral edges thereof, said supporting plate being enclosed by said flanges thereby to restrict the lateral and vertical movement of said supporting plate.
6. An excavating and load handling machine comprising a trailer frame, a mounting plate, a supporting plate on said mounting plate and adapted for longitudinal movement in relation to said mounting plate between a rearwardly disposed excavating position and a forwardly disposed load handling position, a turntable and superstructure on said supporting plate, said superstructure including a crane and operating means therefor, interconnecting means adapted for moving said supporting plate longitudinally in relation to said mounting plate, and locking means for securing said supporting plate in its longitudinally adjusted position.
7. An excavating and load handling machine comprising a trailer frame, a mounting plate, a supporting plate on said mounting plate and adapted for longitudinal movement in relation to said mounting plate between a rearwardly disposed excavating position and a forwardly disposed load handling position, a turntable and superstructure on said supporting plate, said superstructure including a crane and operating means therefor, interconnecting means adapted for moving said supporting plate longitudinally in relation to said mounting plate, said mounting plate having multiple sets of spaced apertures therein, said supporting plate having a set of similarly spaced apertures therein, and means adapted for connecting the apertures which are in registry when the supporting plate is in the desired longitudinally adjusted position.
8. An excavating and load handling machine comprising a trailer frame, a mounting plate, a supporting plate on said mounting plate and adapted for longitudinal movement in relation to said mounting plate between a rearwardly disposed excavating position and a forwardly dis+ posed load handling position, a turntable and superstructure on said supporting plate, said superstructure including a crane and operating" means therefor, interconnecting means adapted for moving said supporting plate longitudinally in relation to said mounting plate, said mounting plate being rectangular and having a pair of flanged guides attached to the lateral edges thereof, and multiple laterally disposed rollers attached to the edge portions of the supporting plate and bearing against the flanged portions of said guides, thereby to serve as anti-fraction means.
9. An excavating and load handling machine comprising a rubber tired vehicle, a mounting plate on said vehicle, a guideway on said mounting plate extending longitudinally of said vehicle, a supporting plate movably mounted on said mounting plate and engaging said guideway, a turntable and superstructure assembly on said supporting plate, motor means on said vehicle for moving said supporting plate and the assembly thereon between two longitudinal positions, the first of which positions constituting a load handling position and the second of which constituting an excavating position, and docking means operatively engaging between said plates for holding the supporting plate and the assembly thereon selectively in either of said positions.
10. An excavating and load handling machine comprising a rubber-tired vehicle, a mounting plate on said vehicle, a supporting plate movably mounted on said mounting plate, a guideway on one of said plates extending longitudinally of said vehicle, bearing means on the other of said plates engaging said guideway whereby to prevent lateral movements of said supporting plate with respect to said mounting plate, a turntable and superstructure assembly on said supporting plate, a power supply means in said superstructure, power transmission means in said superstructure for driving excavating and load handling equipment, drive gearing mounted on said plates for effecting longitudinal movement of said supporting plate and the assembly thereon between load handling and excavating portions, respectively upon operation of said drive gearing, and power take-off means connecting said power supply means and said gearing.
LOUIS R. RUSSELL.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 833,748 McGifi'ert Oct. 23, 1906 1,808,898 Kerr June 9, 1931 1,918,419 Needham July 18, 1933 2,205,710 Ashmore June 25, 1940 2,229,840 Edwards Jan. 28, 1941 2,295,769 Zeilman Sept. 15, 1942
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602552A (en) * 1950-09-20 1952-07-08 Orloff Arthur Crane
US2965245A (en) * 1958-06-30 1960-12-20 Thew Shovel Co Demountable superstructure for motor cranes and the like
US3160284A (en) * 1963-02-01 1964-12-08 Beloit Corp Weight stabilizing load handling machine
FR2184384A1 (en) * 1972-05-15 1973-12-28 Galinet Paris C
US4037894A (en) * 1976-02-26 1977-07-26 Marion Power Shovel Company, Inc. Frame construction for power shovels and the like
US20150267378A1 (en) * 2014-03-21 2015-09-24 Donald J. MURTHA Excavator
US20200018042A1 (en) * 2016-10-27 2020-01-16 Volvo Construction Equipment Ab Apparatus for fixing upper swing structure of construction machine
US20200299928A1 (en) * 2017-12-22 2020-09-24 Kubota Corporation Working machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US833748A (en) * 1904-12-30 1906-10-23 Clyde Iron Works Log-loading machine.
US1808898A (en) * 1929-10-17 1931-06-09 Bay City Shovels Inc Turntable lock
US1918419A (en) * 1931-09-01 1933-07-18 Robert J Needham Means for loading and unloading cars
US2205710A (en) * 1935-08-30 1940-06-25 Ashmore Le Roy Fire extinguishing equipment
US2229840A (en) * 1939-05-25 1941-01-28 Harnischfeger Corp Rotating cab machinery
US2295769A (en) * 1941-09-08 1942-09-15 Thew Shovel Co Excavating and load handling machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US833748A (en) * 1904-12-30 1906-10-23 Clyde Iron Works Log-loading machine.
US1808898A (en) * 1929-10-17 1931-06-09 Bay City Shovels Inc Turntable lock
US1918419A (en) * 1931-09-01 1933-07-18 Robert J Needham Means for loading and unloading cars
US2205710A (en) * 1935-08-30 1940-06-25 Ashmore Le Roy Fire extinguishing equipment
US2229840A (en) * 1939-05-25 1941-01-28 Harnischfeger Corp Rotating cab machinery
US2295769A (en) * 1941-09-08 1942-09-15 Thew Shovel Co Excavating and load handling machine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602552A (en) * 1950-09-20 1952-07-08 Orloff Arthur Crane
US2965245A (en) * 1958-06-30 1960-12-20 Thew Shovel Co Demountable superstructure for motor cranes and the like
US3160284A (en) * 1963-02-01 1964-12-08 Beloit Corp Weight stabilizing load handling machine
FR2184384A1 (en) * 1972-05-15 1973-12-28 Galinet Paris C
US4037894A (en) * 1976-02-26 1977-07-26 Marion Power Shovel Company, Inc. Frame construction for power shovels and the like
US20150267378A1 (en) * 2014-03-21 2015-09-24 Donald J. MURTHA Excavator
US9617711B2 (en) * 2014-03-21 2017-04-11 Donald J. MURTHA Excavator
US11174620B2 (en) 2014-03-21 2021-11-16 Donald Murtha Excavator
US20200018042A1 (en) * 2016-10-27 2020-01-16 Volvo Construction Equipment Ab Apparatus for fixing upper swing structure of construction machine
US11555290B2 (en) * 2016-10-27 2023-01-17 Volvo Construction Equipment Ab Apparatus for fixing upper swing structure of construction machine
US20200299928A1 (en) * 2017-12-22 2020-09-24 Kubota Corporation Working machine
US11982068B2 (en) * 2017-12-22 2024-05-14 Kubota Corporation Working machine

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