GB636228A - Improvements in tractors - Google Patents
Improvements in tractorsInfo
- Publication number
- GB636228A GB636228A GB18050/47A GB1805047A GB636228A GB 636228 A GB636228 A GB 636228A GB 18050/47 A GB18050/47 A GB 18050/47A GB 1805047 A GB1805047 A GB 1805047A GB 636228 A GB636228 A GB 636228A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- shafts
- pinions
- frames
- chassis
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/06—Endless track vehicles with tracks without ground wheels
-
- 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
- B62D49/0607—Straddle tractors, used for instance above vine stocks, rows of bushes, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D49/00—Tractors
- B62D49/08—Tractors having means for preventing overturning or tipping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/084—Endless-track units or carriages mounted separably, adjustably or extensibly on vehicles, e.g. portable track units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/10—Bogies; Frames
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Soil Working Implements (AREA)
Abstract
636,228. Changing wheel gauge; adjusting height of body from ground. PONCET, M. V. July 8, 1947, No. 18050. Convention date, July 9, 1946. [Class 108 (ii)] [Also in Group XXXI] The track of a wheeled or endless track agricultural tractor (see Group XXXI), is varied by mounting the endless track sprockets 13, Fig. 1 and 2, or road wheels, on a pair of side frames 2 which are supported by members 3 of U-shaped cross-section slidable in a chassis 1. Adjustment is effected by mounting in each end of the chassis a rotatable hollow shaft 4, Fig. 6, having an internal thread coacting with a threaded spindle 5 fixed to one of the frames 2, and an oppositelythreaded sleeve 6 fixed to the other frame 2. The shafts 4 are rotated by the manual operation of a handle 11, Fig. 4, driving a shaft 9, bevelgears 10, shafts 8, bevel-wheels 8a and bevelwheels 7 which are integral with the shafts 4. In order that the endless tracks 12, Fig. 1, or road wheels, may be adjusted for height with respect to the chassis, the endless track sprockets 13 are rotatably mounted on arms 14 pivoted on the frames 2, said arms having sectors 15. The two sectors 15 on one side can be turned simultaneously by cables 16, Fig. 4, which pass over a common sheave 17 and which are wound on a drum 18 so that the track sprockets on one of the frames 2 can be raised or lowered whilst those on the other side are moved in the opposite direction. The drums 18 are driven from an engine shaft extension 30a on which is fixed a pinion 45 in constant mesh with pinions 46, 47, which pinions drive shafts 48, 49, oppositely cut worms 50, 51, and pinions 52, 53, which are loose on a shaft 20, respectively. The loose pinions 52, 53, each having dogs projecting from their opposing faces, can drive the shaft 20 in either direction according as to which dogs are engaged with a dog clutch 54 which is slidable on the shaft 20 and rotatable therewith. Worms 21 at each end of the shaft 20 drive worm-wheels on shafts 19 of the drums 18.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR930390T | 1946-07-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB636228A true GB636228A (en) | 1950-04-26 |
Family
ID=9445682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18050/47A Expired GB636228A (en) | 1946-07-09 | 1947-07-08 | Improvements in tractors |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH261026A (en) |
FR (1) | FR930390A (en) |
GB (1) | GB636228A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2954833A (en) * | 1958-04-14 | 1960-10-04 | Eugene L Davidson | Adjustable double track tractor |
WO1980001268A1 (en) * | 1978-12-12 | 1980-06-26 | Caterpillar Tractor Co | Apparatus for shifting center of gravity of a work vehicle |
US4230199A (en) * | 1978-12-12 | 1980-10-28 | Caterpillar Tractor Co. | Apparatus for shifting center of gravity of a work vehicle |
US4595068A (en) * | 1982-08-25 | 1986-06-17 | Fritz Seeber | Transmission apparatus |
FR2850349A1 (en) * | 2003-01-29 | 2004-07-30 | Bernard Coeuret | Tracked vehicle has crawler track assemblies connected by telescopic system for adjusting track width |
EP1967483A3 (en) * | 2007-03-08 | 2009-03-25 | Kobelco Cranes Co., Ltd. | Crawler Vehicle |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2654633A (en) * | 1952-01-29 | 1953-10-06 | Superior Coach Corp | Leveling means for vehicles |
US2967578A (en) * | 1957-03-04 | 1961-01-10 | Kristi Co | Suspension and drive mechanism for endless tread vehicles |
FR1213268A (en) * | 1958-02-22 | 1960-03-30 | Vehicle intended to travel on routes which may have a significant slope, in particular, in a direction transverse to its route | |
NL7706236A (en) * | 1977-06-07 | 1978-12-11 | Lely Nv C Van Der | TRACTOR. |
FR2709637B1 (en) * | 1993-09-08 | 1995-11-10 | Dufaut Gabriel | Improvements to grape harvesting machines coupled to a tractor. |
-
1946
- 1946-07-09 FR FR930390D patent/FR930390A/en not_active Expired
-
1947
- 1947-06-25 CH CH261026D patent/CH261026A/en unknown
- 1947-07-08 GB GB18050/47A patent/GB636228A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2954833A (en) * | 1958-04-14 | 1960-10-04 | Eugene L Davidson | Adjustable double track tractor |
WO1980001268A1 (en) * | 1978-12-12 | 1980-06-26 | Caterpillar Tractor Co | Apparatus for shifting center of gravity of a work vehicle |
FR2443967A1 (en) * | 1978-12-12 | 1980-07-11 | Caterpillar Tractor Co | |
US4230199A (en) * | 1978-12-12 | 1980-10-28 | Caterpillar Tractor Co. | Apparatus for shifting center of gravity of a work vehicle |
US4595068A (en) * | 1982-08-25 | 1986-06-17 | Fritz Seeber | Transmission apparatus |
FR2850349A1 (en) * | 2003-01-29 | 2004-07-30 | Bernard Coeuret | Tracked vehicle has crawler track assemblies connected by telescopic system for adjusting track width |
EP1442968A1 (en) * | 2003-01-29 | 2004-08-04 | Bernard Coeuret | Tracked vehicle |
EP1967483A3 (en) * | 2007-03-08 | 2009-03-25 | Kobelco Cranes Co., Ltd. | Crawler Vehicle |
US7992660B2 (en) | 2007-03-08 | 2011-08-09 | Kobelco Cranes Co., Ltd. | Crawler vehicle |
Also Published As
Publication number | Publication date |
---|---|
FR930390A (en) | 1948-01-23 |
CH261026A (en) | 1949-04-15 |
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