Task: Translation
Input (Czech): Pa ic  za° zen  ve form  pa ic  sk° n  pro pa en  r²h sest v  ze spodn  sk° n  (3), vytvo°en  z pa ic ch desek (5) udr ovan²ch v odstupu od sebe rozp rami (8), kter  jsou na sv  horn  hran  opat°eny tup²m okrajem (7), tvo°en²m zejm na  ty°bok²m zatla ovac m nosn kem  (36), a kter  maj  na sv  spodn  hran  vytvo°en b°it (6) pro zar  en  spodn  sk° n  (3) sm rem dol  do zeminy (2). D le sest v  z nejm n  jednoho dalÜ ho patra pa ic ch desek (5) n stavbov  sk° n  (4, 12) l cuj c ch se spodn  sk° n  (3). Pa ic  desky (5) n stavbov  sk° n  (4, 12) maj  stejn  proveden  jako pa ic  desky (5) spodn  sk° n  (3). Pa ic  za° zen  obsahuje nejm n  jednu ochrannou kolejnici (9) um st nou na b°itu (6) pa ic  desky (5) ulo en  na spodn  sk° ni (3). Ochrann  kolejnice (9) je tvo°ena tuh²m a tlaku odoln²m hranolovit²m profilem (10) s dopl kovou ·lo nou plochou tvarem p°izp sobenou tvaru b°itu (6), prob haj c  po d lce hranolovit ho profilu (10).\
Output (English): The present invention relates to a trench lining device in the form of a lining box comprising a base box (3) including lining plates (5), kept apart by braces (8), the lining plates (5) each having on its upper side a blunt edge (7) formed particularly by a square pressure cross beam (36), and further including on the underside of each of the lining plates (5) a cutting edge (6) for forcing the base box (3) downward into the ground (2). It further comprises at least one tier of the lining plates (5) defining a raised box (4, 12) arranged aligned on the base box (3), wherein the lining plates (5) of the raised box (4, 12) are substantially identical to the lining plates (5) of the base box (3). The invented trench lining device further includes at least one protective rail (9) attached to the cutting edge (6) of at least one of the lining plates (5) standing on the base box (3). The protective rail (9) is formed by a rigid and pressure-resisting cross beam edge profile (10) in the form of a master mold of the cutting edge (6) extending over the length of the profile (10) and being adapted to receive the cutting edge (6) essentially in an interlocking manner.