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Asthana, M. N.
- A Glossary of Common Logging Terms
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Indian Forester, Vol 89, No 8 (1963), Pagination: 514-521Abstract
Literature on Logging was scarce in India till recently and many of the logging terms are not well understood by the average reader. Even the official glossary is not complete in this respect. To make modern logging terms better understood, a list of the more common terms together with their definitions and meanings has been prepared and given.- Log Loading with Cable-puller
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Indian Forester, Vol 90, No 10 (1964), Pagination: 662-666Abstract
A method to employ 'Greif' cable-puller for loading of logs into truck has been described. It has been shown that the cost of loading by this method is much lower than by hand loading. Moreover, the cost is actually less for bigger logs than for smaller logs.- Terrain Classification in Logging
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Indian Forester, Vol 90, No 11 (1964), Pagination: 733-736Abstract
No abstract- An Improved Stopping Device for Use with the Koroleff's Wire Skidding Equipment
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Indian Forester, Vol 91, No 12 (1965), Pagination: 872-872Abstract
An improved stopping device for use with the Koro1eff's Wire Skidding has been described and its advantages related.- Log Loading with a Pulling and Lifting Machine
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Indian Forester, Vol 92, No 7 (1966), Pagination: 435-440Abstract
The use of pulling, and lifting machine for loading of logs into trucks has been explained and its economics worked out. Cost of loading by this method is more than that using the 'Grief' Cable Puller for smaller loads (upto about 400 kg) and practically equal for heavier loads. However, the pulling and lifting machine is easier to carry and handle.- Studies with the Hanni's Portable Band Sawmill
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Indian Forester, Vol 92, No 12 (1966), Pagination: 762-771Abstract
Time and cost studies have been done on the working of the Hanni's Portable Band Sawmill at Uttarkashi, U.P., with the object of studying its economics and efficiency. The study covered 215 logs of Pinus roxburghii over a period of 10 days in 1963. Daily out-turn and the cost of sawing per cubic foot, etc., as well as the hourly machine costs have been calculated. Regressions of various time intervals on log volumes have been worked out. The study shows that if the sawn cross sections are not limited to a few but the logs are sawn with a view to obtain maximum sawn out-turn, the efficiency of sawing would increase with the increased girth of logs. The average total sawing time per cft. Of sawn out-turn is 2.50 minutes with the present pattern of sawing, but this time could be minimised if sawing pattern is such as to produce maximum out-turn from a log.- Effect of log Size on Sawn Outturn in Chir (Pinus roxburghii)
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Indian Forester, Vol 93, No 2 (1967), Pagination: 87-94Abstract
A study of the outturn of 215 logs of chir (Pinus roxburghii) sawn by Hanni's Portable saw mill has been made at Uttarkashi. The average sawn outturn as a percentage of the log volume on quarter girth (Hoppus) basis has been found to be 70.52 per cent, but this is found to vary between approximately 60 to 85 per cent depending upon the girth of the log and the cross section of the sawn pieces produced. In the circumstances prevailing at the sawmill site, and the need to supply sleepers to the Indian Railways, it is not possible to Increase the percentage outturn by sawing the logs wholly into planks, but it is suggested that flitches may be floated down from the sawmill site to be resawn at the collecting boom. The need to undertake river Improvement works to make log floating possible has also been stressed.- The Influence of Felling Implements on Coppicing Power of Sal (Shorea robusta)
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Indian Forester, Vol 95, No 1 (1969), Pagination: 21-23Abstract
There is general belief that felling of trees with a saw adversely affects their coppicing power, but no work has been done so far under Indian conditions to determine whether felling with a saw actually results in poor coppice. The paper presents some comparative data on sal (Shorea robusia) polec rop felled with an axe, two man manual cross cut saw and power chain saw. It is concluded that whether the implement used is an axe, manual cross cut saw or a power chain saw, there is no significant difference in the coppiceability of the species in the long run.- A Study of Log Skidding by Tractors
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