Scarifier - Machinery Shed Item 3 - DJ2084
The steel scarifier was used for shallow surface cultivation and removal of weeds as an alternative to the mouldboard and disc ploughs used for deep cultivation of the land.
Shallow cultivation was much cheaper but not suitable for heavy soils and where stones may be present as these could break the lightweight scarifier.
This scarifier has 7 teeth. Others were available ranging in sizes from 3 to 9 teeth. They were horse drawn and widely used on orchard to turn the soil to control weeds.
Made c1930. Perhaps by Daniel Harvey in Box Hill and used on an orchard in the local district. Gifted to DTHS in 1994.
Poster from Machinery Shed re Item 3 (DJ2084)
Scarifiers are also called cultivators or harrows
Using a scarifiers is also called tillage.
Spring-tooth harrow
A spring-tooth harrow, sometimes called a drag harrow, is a type of harrow, and specifically a type of tine harrow. It is a largely outdated piece of farm equipment. It uses many flexible iron teeth mounted in rows to loosen the soil before planting. It is set in the ground and raised manually and cannot be backed up; this is why it has been replaced by more modern equipment such as the chisel plow and field cultivator.
A drag harrow more specifically refers to a largely outdated type of soil cultivation implement that is used to smooth the ground as well as loosen it after it has been plowed and packed. It uses many flexible iron teeth usually arranged into three rows. It has no hydraulic functionality and has to be raised/adjusted with one or multiple manual levers. It is a largely outdated piece of farm equipment, having been replaced by more modern disc harrows and deeper, stiff-toothed rippers, however, smaller farmers still use them.
A drag harrow is used to loosen and even out soil after it has been plowed and packed. The drag harrow also kills some weeds that may be present, but it is not very efficient in doing so, and it is not one of its primary functions.
Extract from https://en.wikipedia.org/wiki/Harrow_(tool) in Feb 2021
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