English to Portuguese Other Agriculture

O contexto é uma patente de uma colheitadeira.

"The top member 16 acts to hold the blades downwardly into engagement with the top surface of the bottom portion 15. The bottom portion 15 has two side edges as best shown in figure 2 with those side edges 15A and 15B acting as side edges of a ledger surface 15C defined across the top of the bottom portion 15. Thus the cutting action of the blades occurs between the ledger 15C and the bottom surface of the blade as the blade reciprocates from its position at one of the guards to its position at the next adjacent one of the guards. In this cutting action, therefore, the side edge of the blade moves across the space between the guards and enters onto the ledger surface of the guard in a cutting action between the bottom surface of the blade and the top surface of the guard which are immediately adjacent and either in contact or closely adjacent position to provide a shearing action on the crop."