GB151933A - Improvements in self-driven endless-track vehicles - Google Patents

Improvements in self-driven endless-track vehicles

Info

Publication number
GB151933A
GB151933A GB27374/20A GB2737420A GB151933A GB 151933 A GB151933 A GB 151933A GB 27374/20 A GB27374/20 A GB 27374/20A GB 2737420 A GB2737420 A GB 2737420A GB 151933 A GB151933 A GB 151933A
Authority
GB
United Kingdom
Prior art keywords
tracks
wheels
road wheels
pivoted
catches
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
Application number
GB27374/20A
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
Publication of GB151933A publication Critical patent/GB151933A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D49/00—Tractors
    • B62D49/06—Tractors adapted for multi-purpose use
    • B62D49/0621—Tractors adapted for multi-purpose use comprising traction increasing arrangements, e.g. all-wheel traction devices, multiple-axle traction arrangements, auxiliary traction increasing devices
    • B62D49/0635—Tractors adapted for multi-purpose use comprising traction increasing arrangements, e.g. all-wheel traction devices, multiple-axle traction arrangements, auxiliary traction increasing devices using additional ground engaging means, e.g. endless tracks

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

151,933. Virel, A. de, and Cahen, M. E. Sept. 30, 1919, [Convention date]. Endless - t r a c k vehicles.-In endlesstrack tractors &c. fitted with road wheels, the road wheels and track rollers are mounted on pivoted frames arranged so that the change from road wheels to tracks, and vice versa, can be effected by running the vehicle over a pair of obstacles thus enabling catches to be operated to hold or release the pivoted frames. The tracks pass round rollers 6, 7 mounted on frames 4, 5 pivoted to the main frame 1 at 2 and 3. The rear road wheels 9 are carried on an extension of the frame 4 and may be co-axial with the driving sprockets for the tracks. The front road wheels 12 are carried on a frame extension 10 and are held in their inoperative positions by releasable catches 57 on the main frame. The road-wheel axles are connected to springs 48, 49 pivoted to the main frame and provided with extensions which, when the tracks have been flexed by means of wedge-shaped obstacles 60, can be engaged by hand-operated catches 50, 52. The road wheels are then held in their operative positions. To revert to track propulsion, the vehicle is again passed over similar obstacles to support the tracks and the catches 50, 52 are then released; on driving the vehicle forward to clear the obstacles the tracks are straightened and the wheels raised from ground engagement. The axles 8 on which, in the form shown, the driving sprockets for the tracks and the road wheels are mounted, are driven by chain gearing from sprockets on the pivots 2, clutches being provided for driving the wheels and tracks alternatively. The front wheels 12 are steerable, the operating-rod being fitted with a universal joint to permit the elevation and depression of the wheels. The tracks are tensioned by adjusting the bearings 31. Fig. G, by means of screws 35. The bearings slide in jaws 33, one of the jaws being provided with a pivoted rack 37 engaging a similar rack on the bearing 31 to maintain it in its adjusted position.
GB27374/20A 1919-09-30 1920-09-25 Improvements in self-driven endless-track vehicles Expired GB151933A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR511361T 1919-09-30

Publications (1)

Publication Number Publication Date
GB151933A true GB151933A (en) 1921-12-08

Family

ID=8912315

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27374/20A Expired GB151933A (en) 1919-09-30 1920-09-25 Improvements in self-driven endless-track vehicles

Country Status (2)

Country Link
FR (1) FR511361A (en)
GB (1) GB151933A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1048557A1 (en) * 1999-04-28 2000-11-02 Société de Matériels Techniques industriels Modular propulsion platform and vehicle provided with at least one such platform
EP3504957A1 (en) * 2017-12-29 2019-07-03 Cosechadoras Rolif, S.L. Integrated dual-use machine for harvesting and treating fruit on trees

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047636B (en) * 1956-12-05 1958-12-24 Porsche Kg Device for converting a wheeled tractor into a tracked vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1048557A1 (en) * 1999-04-28 2000-11-02 Société de Matériels Techniques industriels Modular propulsion platform and vehicle provided with at least one such platform
FR2792901A1 (en) * 1999-04-28 2000-11-03 Materiels Tech Ind Soc D MODULAR PROPULSION PLATFORM AND VEHICLE CONSISTING OF AT LEAST ONE SUCH A PLATFORM
EP3504957A1 (en) * 2017-12-29 2019-07-03 Cosechadoras Rolif, S.L. Integrated dual-use machine for harvesting and treating fruit on trees
US11089730B2 (en) 2017-12-29 2021-08-17 Cosechadoras Rolif, S.L. Integrated dual-use machine for harvesting and treating fruit on trees

Also Published As

Publication number Publication date
FR511361A (en) 1920-12-23

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