Double tamping bar vibratory screed

Details Double tamping bar vibratory screed Double tamping bar vibratory screed

1987-10-23

1989-05-09

Massie, Jerome W.

Road structure, process, or apparatus

Apparatus

Material distribution means

404105, 404133, E01C 1934

Patent

active

048284289

ABSTRACT:
A double tamping bar vibratory screed is disclosed for use with a lay-down machine for laying a roadway. The screed consists of a main body portion having a strike-off plate on its leading edge which is followed by two tamping bars having independent eccentric shafts. These tamping bars are in turn followed by a vibrating plate which together perform the necessary compaction and provide a smooth, even surface with a variety of materials.
The tamping bars are resiliently designed with a slightly rearward angle of attack and have horizontal material engagement faces which contact the material to be compacted and provide the desired result.

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