Process for improving the impregnability of wood

Details Process for improving the impregnability of wood Process for improving the impregnability of wood

1978-03-30

1980-06-10

Spruill, Robert Louis

Woodworking

Process

408 42, 408 53, 427291, B23B 3916

Patent

active

042067936

ABSTRACT:
This invention relates to an improvement in the process for improving the impregnability of wood which is pierced on its surface prior to an impregnation procedure by means of solid, circular needles which are guided essentially perpendicularly to said wood surface, without thereby causing chipping or splintering, the improvement comprising using sharp, circular needles with smooth surfaces, rotating about their central axes, and at an essentially constant ratio of the peripheral speed (u) of these needles to their speed of advance (v) with which they drive into the wood.

REFERENCES:
patent: 1012207 (1911-12-01), Kolossvary

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