DEG0016602MA - - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

Registration day: March 2nd, 1955 Bekaimtgcinacht on July 5th, 1956

GERMAN PATENT OFFICE

The subject of patent 918 115 is under Among other things, a process for impregnating, of freshly juiced round logs, which is before the impregnation partially freed from bark, bast and outer annual rings. The peeled white A liquid impregnating agent is added to some of the trunks, possibly also at the same time Trunk face, during the tree sap and in the course of the process a mixture of tree sap and impregnating solution is discharged at at least one end face, the entire Tree sap and the mixture of it and the waterproofing solution collected in a container from the beginning of the impregnation by adding impregnation salt brought to the target concentration and continuously fed back to the wood, so that not the slightest amount of impregnation solution is lost and the stock solution after the expiry of some impregnations almost only contain tree sap as a solvent.

In some cases it is desirable not to impregnate the entire trunk, but only © inen part of the same lying between the two end pieces, or it requires the individual parts of A different type of impregnation for long timbers. For example, in the case of driven piles and the like.

609548/434

G 16602 IVa / 38 h

in salty water only the middle part of the pole against. Teredo to be protected as the protruding from the water at the top and the one driven into the ground; Part of Teredo not infested will. The stem of a pile that protrudes out of the water would have to be be protected against wood-destroying fungi and insects; that rammed into the seabed Piece does not need any impregnation at all.

In this case, the soaking solution is not by means of a liquid-tight sack that is attached to is closed at one end and is pulled over the foot end, fed, but the middle piece by means of a hose, which is also liquid-tight, which runs over this part of the driven pile pulled and folded and pressed liquid-tight at both ends onto the white-peeled trunk is fed.

The container thus formed around the piece of trunk to be impregnated becomes a little higher from one Standing vessel filled with a soaking solution that is effective against Teredo under slight overpressure. From the end of the plait, the juice in the trunk is then drained away, with the solution flowing into the

'■■ - ■■■ the protective part of the post penetrates. To this The outer surface and the part of the wood underneath it becomes the closest and most intense interspersed with the impregnation solution, which is cheapest against Teredo attack.

The foot end can then be effective against wood fungi and insects by means of a sack Protective salts are protected according to patent 918 115, by folding a liquid-tight, pliable sack over it and on the lower one Seals stem end.

In order to be able to use stretchable material for the impregnation solution container on the one hand, on the other hand, however, the dead amount of solution that fills the sacks and during the entire soaking process remains in them or migrates into the trunk and is replaced again and again, if possible To keep it low, according to a further development of the invention, around the folded thin sack or tube a belt strip or the like made of non-stretchable or very little stretchable material like this wrapped around so that the container holds just enough liquid to accommodate that to be soaked To cover wood everywhere. The attachment of the belt is not very time consuming and is economical justifiable, especially when you consider that driven piles for which this type of impregnation primarily intended to represent quite valuable objects.

Instead of the belt, one or more can be pressed tightly onto the hose next to one another Cuffs are used. The impregnation solution is supplied from just one Vessel located a little above the stem surface. If a vacuum pump is used, so can expediently sucked out of the trunk and out of the outlet side of the pump " The juice that emerges can be fed into this container.

At the same time one lets out of a somewhat higher standing vessel, which the impregnation solution in strong Contains concentrated form, so concentrated impregnating solution flow steadily that in the soaking vessel itself is the solution of the desired concentration.

The liquid escaping from the braid when using a vacuum pump persists during the Duration of the impregnation of the middle piece only Juice. The upper part of the pile to be driven into the ground, which is not to be impregnated is so long that impregnation solution practically no longer escapes from it. So if enough Water is available near the drinking place, so it is not worth pouring this juice into, to let the drinking vessel run.

Under certain circumstances, the protection of the upper part of the Impregnation solution introduced into the center piece, which only protected against Teredo should penetrate, namely in the juice tracts of the largest lumen, that is, the smallest Resistance. You can, if necessary or desired, these penetrated solution parts bring it back again, by one after the end of the watering over the foot of the pole Sack pulls and sucks the solution out again. This is how one gets fronts in the stake of the individual impregnation solutions, which are much more even, because naturally also from the juice webs with the largest lumen, the liquid is withdrawn fastest.

Claims (6)

Patent applications: 1. Method of impregnating freshly juiced Logs that have been partially freed from bark, bast and outer annual rings and in which the impregnation solution has a white-peeled part and optionally one end of the trunk and the tree sap is discharged at at least one end of the trunk is characterized according to patent 918 115, that only a part lying between the ends of the trunk is peeled white and impregnated while the stem ends are not impregnated. 2. The method according to claim 1, characterized in that no indicates that over the part of the round wood that is used for the purpose of the impregnation solution supply is peeled white, a tube made of liquid-tight, thin and pliable, but not stretchable material, folded around the trunk to fit snugly and on the Jacket surface is tightly attached at both ends, this hose with a connecting pipe is provided for the purpose of supplying the impregnating liquid. . 3. The method according to claims 1 and 2, characterized in that in order to achieve the smallest possible amount of dead solution within the folded around the trunk Sack or hose of this by means of a spiral wound with moderate pressure ^N 6 »548/434 G 16602 IVa / 38h Belt made of little or no stretchable material so pressed onto the surface of the wood becomes that a coherent, but as thin as possible liquid layer remains between the trunk and the sack. 4. The method according to claims 1 and 2, characterized in that to the same Place one or more wide cuffs next to each other taut on the sack around the Trunk to be stretched. 5. Process according to claims 1 to 4, characterized in that on the same Stem for the purpose of feeding different solutions at different points along its length two or more hoses and optionally a sack can be attached through the surface various impregnation solutions are supplied. 6. The method according to claims 1 to 5, characterized in that after completion of the impregnation for the purpose of better separation of the zones the various types of impregnation agent is sucked in the opposite direction. - Considered publications:
German patent specification No. 857 273, 803 374.