To Prevent Transposition of Matrices.
In order to prevent transposition of matrices and spacebands the parts should be adjusted as illustrated in Fig. 31.
The assembler chute spring A, which lays between spaceband chute B and assembler rail C, should be set as low as its banking piece “a” will permit. Its lower end should be about midway between the lower end of the spaceband chute B and matrix catch spring E, and in line with them.
The space between the spring A and rail C at point 2 should be equal to the thickness of the capital W matrix.
The spaceband buffer F should be adjusted so that each band as it falls into the line will be supported by the buffer, with its ear about 1-32 inch above the top of the assembler rail.
The buffer wire should have a slight inclination downward toward the left, so that the ears of the bands will settle down as the line is assembled.
The matrix catch spring E should project through the assembler plate a sufficient distance to catch each matrix as it passes, and prevent it from falling back to the right.
The assembler slide brake H and spring L should be adjusted to prevent the assembler slide from jumping ahead to the left or continually vibrating as the matrices enter. If the assembler vibrates it makes it impossible for the operator to read the line, and the last letter will sometimes fall out when the assembling elevator is raised. This is caused by the brake H wearing at points 3 and 4, which lessens the tension of the spring L and takes up the space between bottom screw J and brake lever K at point 6, which should be about 1-32 inch. If brake H is not too badly worn at points 3 and 4 this trouble can be obviated by strengthening spring L and turning up screw J until you have about 1-32 inch space at point 6. Be careful not to get too much space at point 6, or the assembler slide would not return when the line has been released from the assembling elevator.