Film projector with telescopic cabinet

Claim 1

A PROJECTION DEVICE COMPRISING A CABINET HAVING A TOP WALL AND OPPOSED SIDE AND END WALLS, ONE OF SAID SIDE WALLS HAVING A LIGHT TRANSMITTING VIEWING SCREEN THEREIN, DRAWER-LIKE INNER BOX HAVING A BOTTOM WALL AND OPPOSED END WALLS MOUNTED FOR SLIDING MOVEMENT INSAID CABINET TOWARD AND AWAY FROM SAID ONE OF SAID SIDE WALLS BETWEEN AN OPEN PROJECTING POSITION AND A CLOSED VIEWING POSITION, THE SIDE WALL OF SAID CABINET OPPOSITE SAID ONE OF SAID SIDE WALLS BEING MOUNTED UPON AID INNER BOX FOR MOVEMENT THEREWITH, A PROJECTER MOUNTED WITHIN SAID INNER BOX TO PROJECT A BEAM PARALLEL TO THE SIDE WALL ON SAID INNER BOX, A MIRROR MOUNTED IN SAID INNER BOX FOR MOVEMENT BETWEEN A REFLECTING POSITION WHEREIN SAID MIRROR REFLECTS A BEAM FROM SAID PROJECTOR ONTO SAID SCREEN AND AN IMOPERATIVE POSITION WHEREIN SAID MIRROR IS LOCATED CLEAR OF THE PATH OF SAID BEAM, AND AN OPTICAL OPENING IN AN END WALL OF SAID INNER BOX ALIGNED WITH SAID PROJECTOR FOR PASSING THE BEAM OF SAID PROJECTOR FROM SIAD CABINET WHEN SAID INNER BOX IS IN ITS OPEN PROJECTING POSITION.