GB463796A - Improvements in or relating to rack and pinion gearing more particularly for excavating machines - Google Patents
Improvements in or relating to rack and pinion gearing more particularly for excavating machinesInfo
- Publication number
- GB463796A GB463796A GB2472035A GB2472035A GB463796A GB 463796 A GB463796 A GB 463796A GB 2472035 A GB2472035 A GB 2472035A GB 2472035 A GB2472035 A GB 2472035A GB 463796 A GB463796 A GB 463796A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rack
- spring
- arm
- buffer
- pinion gearing
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/304—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom with the dipper-arm slidably mounted on the boom
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Transmission Devices (AREA)
- Gears, Cams (AREA)
Abstract
463,796. Rack -and - pinion gearing. MARSHALL, L., and RUSTON-BUCYRUS, Ltd. Sept. 5, 1935, No. 24720. [Class 80 (i)] In rack-and-pinion gearing of the type in which the rack moves between predetermined limits, the rack carries a buffer which engages an abutment at the end of the travel of the rack and shock is absorbed by relative movement between the rack and the thrust member of the buffer.' In the form shown, the rack b, which operates the dipper arm a of an excavating machine, has a reduced end portion b<1> carrying a slidable piece f having a boss j bearing on a spring k contained in a casing m on the arm a. When the arm a moves to the right to its extreme position, the piece f abuts against the shrouds h on the driving pinion c and is stopped, but the arm a, rack b and the casing m of the spring k continue to move until the spring is compressed, so that these parts are gradually brought to rest. Instead of the spring k, a buffer comprising layers or discs of rubber or metal may be employed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2472035A GB463796A (en) | 1935-09-05 | 1935-09-05 | Improvements in or relating to rack and pinion gearing more particularly for excavating machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2472035A GB463796A (en) | 1935-09-05 | 1935-09-05 | Improvements in or relating to rack and pinion gearing more particularly for excavating machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB463796A true GB463796A (en) | 1937-04-05 |
Family
ID=10216178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2472035A Expired GB463796A (en) | 1935-09-05 | 1935-09-05 | Improvements in or relating to rack and pinion gearing more particularly for excavating machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB463796A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3402838A (en) * | 1966-01-07 | 1968-09-24 | Solokhin Boris Ivanovich | Thrust mechanism for the bucket of an excavator |
| GB2134210A (en) * | 1983-01-25 | 1984-08-08 | Skf Nova Ab | An actuator |
| CN109823239A (en) * | 2019-02-14 | 2019-05-31 | 延锋安道拓座椅有限公司 | Automobile seat electric rotating device |
-
1935
- 1935-09-05 GB GB2472035A patent/GB463796A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3402838A (en) * | 1966-01-07 | 1968-09-24 | Solokhin Boris Ivanovich | Thrust mechanism for the bucket of an excavator |
| GB2134210A (en) * | 1983-01-25 | 1984-08-08 | Skf Nova Ab | An actuator |
| CN109823239A (en) * | 2019-02-14 | 2019-05-31 | 延锋安道拓座椅有限公司 | Automobile seat electric rotating device |
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