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Manual Hay Baler (with plans) by Richard Roosenberg and Janelle Wheelock, 1992
TechGuide - 15 pages

This hand-powered hay press design was developed to answer the need for transportable forage in Africa. It is a stationary, wood framed tool with few steel parts. It is capable of compressing about 25 pounds, 12 kg, of hay into a standard sized bale (14x18x32") with hand power. (Suggestions for denser bales are attached for those wanting to use them for straw bale construction, etc.) Twine or wire is tied by hand. It should be possible to build for less than $100 in materials. This paper includes detailed plans. (revised 1/93) --rjr

Item # 1gblr. Price: $3.50

Wood-Framed Spike-Tooth Harrow by Richard Roosenberg, 1992
TechGuide - five pages

Observation has convinced us of the importance of adjustability in the tooth angle of spike harrows. This design illustrates a simple system of building that capacity into a harrow with a low-cost frame. This is of little import where steel framed harrows are readily available from earlier periods, but it can be very useful in international projects. --rjr

Item # 1ghar. Price: $1.50

MOP Over-the-Row Weeder by Eric Rempel, G. Opio, and Richard Roosenberg
TechGuide - eight pages

This paper emerged from a collaboration between Tillers and people working in Tanzania and Uganda. The challenge was to develop a more effective and low-cost weeding tool. Eric Rempel developed innovative ideas for adapting historical over-the-row technology. Gaudesius Opio did agricultural engineering tests. While not as effective as a historical riding cultivator, it offers a number of ideas for low-cost options.--rjr

Item # 1gmop. Price: $2.00

Slip-Scraper Construction and Operation by Ignacio Villa, Finn, and Rice
TechGuide - 11 pages

The slipscraper can answer many farm and rural community needs for excavation. In this paper the authors describe the construction of a model called the Fresno. It is excellent for gauging the distribution of its load. It is not, however, as good as the common slipscraper in digging undisturbed soil. The plans for this Fresno model are well drawn and are based on weld fabrication. (revised 4/21/92) --rjr

Item #1gslp. Price: $2.50

Water Drum Cart by David Kramer
TechGuide - five pages

This paper describes the challenge in much of the world for transporting water for women with draft animal power. A light, extremely low-cost cart design is described that permits a person to lift a 450 pound, 55 gallon barrel of water with relative ease and for a team of young calves to pull it while in training. The cart incorporates several clever arrangements to make it stable and balanced. --rjr

Item #1gwdr. Price: $1.50