GB576700A - Improvements in or relating to excavating machines - Google Patents

Improvements in or relating to excavating machines


Publication number
GB576700A GB679844A GB679844A GB576700A GB 576700 A GB576700 A GB 576700A GB 679844 A GB679844 A GB 679844A GB 679844 A GB679844 A GB 679844A GB 576700 A GB576700 A GB 576700A
United Kingdom
Prior art keywords
hydraulic jacks
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.)
Application number
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.)
Ransomes & Rapier Ltd
Original Assignee
Ransomes & Rapier Ltd
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 Ransomes & Rapier Ltd filed Critical Ransomes & Rapier Ltd
Priority to GB679844A priority Critical patent/GB576700A/en
Publication of GB576700A publication Critical patent/GB576700A/en
Expired legal-status Critical Current



    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/02Travelling-gear, e.g. associated with slewing gears
    • E02F9/04Walking gears moving the dredger forward step-by-step
    • B62D57/00Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track


576,700. Excavators. RANSOMES & RAPIER, Ltd., and CAMERON, C. M. April 13, 1944, No. 6798. [Class 68 (i)] [Also in Group XXXI] A drag-line excavator is supported on two fore and aft base structures A, B, each comprising a preferably circular base member C on which an upper preferably triangular, frame member D is rotatable on rollers C about a centre post C<1>, the boom F being pivoted to the upper frame of the forward structure A, while an A-frame H, H<1> and a horizontal member G are connected to both structures A, B, and means are provided for moving each base structure and rotating the parts thereon to shift the machine and slew the boom. The means for moving the base structures may be as in Specification 525,908, [Group XXXI], or may comprise hydraulic jacks J, K, pivoted to the upper frames D and to elongated feet L, M, and adapted to raise the base structures, and further hydraulic jacks N, 0, by which lateral movements are imparted. Hoisting and dragging machinery and an electric generating set &c. may be mounted on the rear base structure B. To permit limited side cutting, the drag line P may be passed over a fair lead Q carried by an arm Q<1> pivoted at Q<2> and swing- able by hydraulic jacks R, R<1>. The hydraulic jacks may be controlled by solenoid valves through a drum controller actuated through a ratchet lever by a solenoid, which solenoid may receive an impulse to reset the controller at or near the end of the stroke of the jack or jacks concerned. During digging, the load on the jacks J, K, of the front structure A may be controlled through a pressure breaking switch in the circuit of a solenoid valve.
GB679844A 1944-04-13 1944-04-13 Improvements in or relating to excavating machines Expired GB576700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB679844A GB576700A (en) 1944-04-13 1944-04-13 Improvements in or relating to excavating machines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB679844A GB576700A (en) 1944-04-13 1944-04-13 Improvements in or relating to excavating machines
US606827A US2452632A (en) 1944-04-13 1945-07-24 Excavating machine

Publications (1)

Publication Number Publication Date
GB576700A true GB576700A (en) 1946-04-16



Family Applications (1)

Application Number Title Priority Date Filing Date
GB679844A Expired GB576700A (en) 1944-04-13 1944-04-13 Improvements in or relating to excavating machines

Country Status (2)

Country Link
US (1) US2452632A (en)
GB (1) GB576700A (en)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB658998A (en) * 1948-09-01 1951-10-17 Dowty Equipment Ltd Improvements in mine roof supports
US2678887A (en) * 1951-12-10 1954-05-18 Nat Lead Co Hydration resistant calcium oxide refractories
US2785761A (en) * 1953-05-04 1957-03-19 Buckau R Wolk Ag Maschf Apparatus for walking heavy structures
US2822878A (en) * 1954-01-07 1958-02-11 Paul E Corson Walking tractor
US2777586A (en) * 1954-04-12 1957-01-15 Martin C Boysen Outrigger support for mobile crane or shovel
NL199573A (en) * 1954-08-09
US2864625A (en) * 1955-02-10 1958-12-16 Hugh M Rush Portable boom support attachment for vehicles
US2855111A (en) * 1955-07-14 1958-10-07 Humboldt Company Outrigger supports for mobilized log yarders and loaders, and the like
US2981548A (en) * 1956-11-27 1961-04-25 Northrop Aircraft Inc Elevating trailer with laterally shiftable frame
US2800970A (en) * 1956-12-19 1957-07-30 Joy Mfg Co Creeper base for mining apparatus
US2878882A (en) * 1957-02-04 1959-03-24 Gen Motors Corp Leg type traction means
US2942676A (en) * 1957-12-04 1960-06-28 Kraus Hans Wilhelm Load transportation means
US3002578A (en) * 1958-12-05 1961-10-03 Kraus Hans Wilhelm Control means for a conveyance
US3262582A (en) * 1960-11-28 1966-07-26 Pitman Mfg Company Outrigger structure for hole digger and derrick apparatus
US3003787A (en) * 1961-02-13 1961-10-10 Lee C Moore Semi-trailer with supporting jack
US3446301A (en) * 1966-01-12 1969-05-27 Esch Werke Kg Load moving striding device
US3512597A (en) * 1968-01-17 1970-05-19 Marion Power Shovel Co Walking mechanism and control therefor
US3638747A (en) * 1968-09-27 1972-02-01 Weserhuette Ag Eisenwerk Walking mechanism for moving heavy loads
LU68289A1 (en) * 1973-08-22 1975-05-21
LU68283A1 (en) * 1973-08-22 1975-05-21
DE2438439C2 (en) * 1974-08-09 1990-02-15 Riggers Manufacturing Co., Kennewick, Wash., Us
US4462476A (en) * 1981-04-10 1984-07-31 Nikolay Shkolnik Walking apparatus
US4416344A (en) * 1981-06-19 1983-11-22 Kabushiki Kaisha Komatsu Seisakusho Outriggered vehicle capable of crabwise translation
FR2528409B1 (en) * 1982-06-11 1986-02-21 Haulotte Atel Const A Additional equipment on a self-propelled crane with telescopic boom
US4519468A (en) * 1983-03-24 1985-05-28 Fmc Corporation Steerable carrousel supported walking beam vehicle
US4555032A (en) * 1983-03-24 1985-11-26 Fmc Corporation Heavy lift crane
US4537317A (en) * 1984-04-23 1985-08-27 Fmc Corporation Heavy duty travel crane
NL1015764C2 (en) * 2000-07-20 2002-01-22 Seumeren Holland B V Van Crane.
US8490724B2 (en) 2011-12-16 2013-07-23 Shawn R. Smith Centering device for load transporting apparatus
US10556631B2 (en) 2011-12-16 2020-02-11 Entro Industries, Inc. Low profile roller assembly
US9533723B2 (en) * 2011-12-16 2017-01-03 Entro Industries, Inc. Mounting structure with storable transport system
US10941539B1 (en) * 2012-11-21 2021-03-09 Joshua Colbert Telescoping stabilizer leg systems and methods
US9567728B2 (en) * 2012-11-21 2017-02-14 Joshua Colbert Telescoping outrigger systems
US20150122558A1 (en) 2013-09-09 2015-05-07 Columbia Trailer Co., Inc. Lifting jack assembly with rotatable hydraulic cylinder for steering and method of operation
US10899401B2 (en) 2017-06-05 2021-01-26 Entro Industries, Inc. Yaw alignment system
US10793409B2 (en) 2017-07-12 2020-10-06 Entro Industries, Inc. Lifting loads with lifting devices
US10895882B2 (en) 2017-08-01 2021-01-19 Entro Industries, Inc. Controlling load transporting devices
US10889961B2 (en) 2017-08-08 2021-01-12 Entro Industries, Inc. Automatic walking for a load transporting apparatus

Also Published As

Publication number Publication date
US2452632A (en) 1948-11-02

Similar Documents

Publication Publication Date Title
US2326338A (en) Material handling apparatus
US3495727A (en) Backhoe
US3430790A (en) Excavator
US2482612A (en) Shovel loader
US4231700A (en) Method and apparatus for laser beam control of backhoe digging depth
US3921730A (en) Earth working and work support machine
US2426544A (en) Vehicle mounted loader
US2768499A (en) Hydraulic system comprising multiple pump and ram units
US3273729A (en) Clamping device
US3339763A (en) Automatic back hoe control system
US3778111A (en) Ripper tooth attachment for a backhoe
US2828038A (en) Excavating apparatus
SE7409635L (en)
US2411498A (en) Pull shovel
US2660253A (en) Supporting propulsion means for draglines and the like
US3061955A (en) Sloping attachment for road grader blade
US2722066A (en) Bulldozing attachment for tractors
US3231116A (en) Excavating machine
US2452632A (en) Excavating machine
US2703044A (en) Digger apparatus
US3527308A (en) Ripper attachment for tractor
US2834489A (en) Mechanical shovel
US5473828A (en) Structure of a clamshell bucket and a hydraulic control circuit
US4077529A (en) Excavator bucket and ripper tooth assembly
US3064370A (en) Canal dredge