GB446169A - Improvements in or relating to ramming and the like machines - Google Patents
Improvements in or relating to ramming and the like machinesInfo
- Publication number
- GB446169A GB446169A GB27427/34A GB2742734A GB446169A GB 446169 A GB446169 A GB 446169A GB 27427/34 A GB27427/34 A GB 27427/34A GB 2742734 A GB2742734 A GB 2742734A GB 446169 A GB446169 A GB 446169A
- Authority
- GB
- United Kingdom
- Prior art keywords
- machine
- springs
- rams
- sept
- ram
- 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
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
- E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Transmission Devices (AREA)
- Road Paving Machines (AREA)
Abstract
446,169. Road ramming machines. SCHIEFERSTEIN, G. H., 105, Reichsstrasse, Charlottenburg, Berlin. Sept. 24, 1934, No. 27427. Convention date, Sept. 23, 1933. [Class 107] The elastically constrained ram of a roadramming machine is energized by a stationary driving device 4 operating in tune with the natural frequency of the ram and acting mainly or exclusively in a vertical direction, means, such as abutments 24 and coacting members 23, being provided to prevent overstressing of the elastic means when the machine is idling. As shown, the machine may carry two rams 1, each suspended by undamped springs 2 from a crosshead 3 which can be moved vertically within the machine frame 19 by screws 5 actuated by hand wheels 8. An electric motor 10 is supported on the frame 19 and is connected by links 11, 12, and chain-and-sprocket gearing 13 ... 18 to the driving cam 4. This cam operates the rams by way of double semielliptical leaf springs 20. Inharmonic oscillations are produced by rolling-contact members 21, 22, which curtail the effective length of the springs 20 as the flexion increases or, alternatively, by rubber buffers mounted within the springs 2.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE446169X | 1933-09-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB446169A true GB446169A (en) | 1936-04-24 |
Family
ID=6537842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27427/34A Expired GB446169A (en) | 1933-09-23 | 1934-09-24 | Improvements in or relating to ramming and the like machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB446169A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3274907A (en) * | 1962-08-16 | 1966-09-27 | Heusser Delmag A G | Vibrating and tamping devices |
US3802791A (en) * | 1970-11-25 | 1974-04-09 | Wacker Werke Kg | Tamping device for compacting soil, concrete, and the like |
-
1934
- 1934-09-24 GB GB27427/34A patent/GB446169A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3274907A (en) * | 1962-08-16 | 1966-09-27 | Heusser Delmag A G | Vibrating and tamping devices |
US3802791A (en) * | 1970-11-25 | 1974-04-09 | Wacker Werke Kg | Tamping device for compacting soil, concrete, and the like |
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