Intermediate i

IS King Street, London WC26 8HN, England 1 Telephone 01 836 6379 IS King Street, London WC26 8HN, England 1 Telephone 01 836 6379 The surveying instrument most used on farms in developing countries is the level. It can be used to make a map before starting earthmoving work, it can be used to mark out on the ground either level contours, or else lines with a small, uniform slope for drainage, irrigation, soil conservation, roadmaking or building work. Modern surveying instruments are very...

A X

Re-drill centre hole and place shrunken oil-soaked bearing block on mandrel and turn to the desired size. Cross section of the finished oil-soaked wood bearing showing grease reservoir holes. On heavy equipment such as ox-carts or where it is not possible to push the axle through a buah bearing, the split-block bearing provides a more praotical solution. It is simple to fit and replace, and if wear takes place the two halves can be ahanged around. After further wear, the life of the bearing can...

Gntermediate

London SW1V US. Te ephone01-82B 5791-4 DEVELOPED BY Originally designed by Rev. V. Swenson of Singida Mission and later developed further at T.A.M.T.O., Tanzania. DESCRIPTION Built to carry a load of 1400 lbs. (656 kg), pulled by two oxen. An important design feature of this cart is the woodblock axle bearings, each made of two pieces of wood, oil-impregnated by soaking in hot oil, the axle bearing hole of (38) diameter being drilled centrally through the blocks....

N rite r modi ate

I 9 King Slrill, London WCJE 8HN England 1 Telaphona 01 836 8379 I 9 King Slrill, London WCJE 8HN England 1 Telaphona 01 836 8379 This harrow is constructed entirely of timber. Its high ground clearance and wide tooth spacing make it suitable for working in minimal tillage systems where it is advantageous to leave a trash cover on the soil surface. It can be used following sweep tillage operations to break down soil clods before crop planting, and also for covering of seed after broadcast...

Ufbechnology

England 2. SOME ADVANTAGES OP OIL-SOAKED WOOD BEARINGS 1 3.2 Other Considerations 2 4.3 How to Hake the Bearings 5 Compiled by J. Collett from designs by H.S. Pearson The purpose of this leaflet is to provide some background information for both constructors and designers who wish to use wood bearings. The type of wood to use, its treatment, lubrication, and expected performance will be discussed. 2. SOME ADVANTAGES OP QIT.-5-iO-ACTjP UQQS BEARIKGS Hade from...

The Usulm Bused Roller Thresher

RASULIA ANIMAL BBAWN ROLLER THRESHER This implement was seen in use in Iran by Ed Abbot, who subsequently built examples at the friends Bsrul Development Centre, Rasulia, Hoshangabad, K.P, India. I.T.D.G. has not yet had an opportunity to build or test the Rasulia thresher and this leaflet is based on information supplied by Ed Abbot. The thresher is apparently anttable for all types of corn and similar crops, and could be made and used anywhere where bullocks are available and suitable '. cal...