Reports, Etc. On Dr. Boucherie's Patent for Preserving Timber From Decay
Reports, Etc. On Dr. Boucherie's Patent for Preserving Timber From Decay
Permanent Way Company
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le Docteur Boucherie was called on to prepare some thousands of trees, either for posts for fencing or any other purpose, it became necessary to operate upon a great number at the same time, and consequently to discover some other method. This is as follows : — At the same height as the benches on which were laid the timbers to be impregnated, he fixed a wooden case, about 6 in. Digitized by VjOOQIC 12 wide and 10 in. deep^ hermetically closed and jointed, or else a wooden pipe. The sides of th...is case were perforated with round holes, rather smaller in diameter than the trees to be operated on. The rings, which were cut out in the formation of these holes, were removed with care by means of a centre-bit, and laid by ; so that, when the hole had been somewhat widened out on the outer side with a rasp, the ring cut from it might be used (after the introduction of the end of an india-rubber pipe of from 4 in. to 6 in. diameter), for the purpose of fixing the pipe to the case, by forcing it into the interior of the flexible pipe, and securing it in its place by compressing the elastic substance of the tube between the edge of the hole and the circumference of the ring, which was perforated with a small hole in the centre.
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