Patent GB-190827993-A (GB)
Title: Improvements in and connected with the Delivery Mechanism of Printing Machines.
Inventor: SCOTT JOHN RUSSELL
Filed: 1908-12-23
Granted: 1909-11-04
Abstract: 27,993. Scott, J. R., and Hallam, E. Dec. 23. Delivering apparatus.-A device for conveying in counted batches the articles, for example, newspapers, delivered from printing- machines, of the kind in which the articles are delivered on to a slotted tray and travelling fingers rise through the slots to move the batches forward, is also adapted to stack them with the adjacent batches angularly displaced. The apparatus comprises a table b for receiving the batches conveyed across a tray by travelling fingers e working in slots, two sets of fingers 2 above the table adapted to receive the batches and support them in a stack, means for raising the table b and intermittently rotating it so as to give each batch an angular displacement, and means for horizontally reciprocating in opposite directions the sets of fingers 2. The main-driving- shaft u is provided with three cams y, t, z, which operate respectively the movement of the transferring fingers e, the lifting movement of the table b, and the reciprocating motions of the sets of fingers 2, as shown in Figs. 4, 5, and 3. The table b is operated from a cam 3 on a shaft w, which is driven at half the speed of the main shaft u. The cam 3 operates a link 25, which reciprocates a rack 24 in gear with a sleeve 22. The sleeve 22 is splined to the vertical hollow shaft m of the table b, and is held in position by the horizontal shafts 12. The fingers e, which are mounted on a shaft f, project through and travel along two slots in the bed a, on the inward motion, and lie below the surface on the outward motion. The position of the fingers e is controlled by the guides h, which are engaged by a crank j on the shaft f. On the outward motion, the crank j travels in the upper guide h. When the fingers c reach the outer end of the slots, the curved part of the guide throws them into the vertical position. Just before the fingers reach the vertical position, the guide crank j moves aside the spring pawl k and enters the lower guide, in which it is retained during the inward movement of the fingers e. On the upward motion of the table b and support r, the fingers e are thrown back by a spring 32, which releases the crank from a spring catch 33. A counterweight 34 then causes the fingers e to fall back below the surface of the bed a, the crank entering the upper guide. The fingers e and shaft f are carried at the ends of lazy-tong mechanisms 6. The other end of each tong is engaged by a rocking lever 7. Each tong mechanism is fixed by a pin 9 to a shaft 10. The shafts 10 serve as guides for the moving parts of the tongs and the fingers e. The table b is operated vertically by pinions p engaging with vertical racks q on the support r. The pinions p are operated from the cam t by means of a quadrant s and pinion x. The reciprocating movement of one set of fingers 2 is effected from the cam z by a quadrant 16, pinion 17, and pinions 18 engaging with horizontal racks 19. The other set of fingers 2 is actuated in the opposite direction by racks 20 and pinions 21. To knock up the papers before feeding them to the stack, fingers o are provided on the opposite side of the table b to the fingers e. The fingers o are mounted on a spring-controlled pivoted shaft 29 which is provided with a lug 31. The support r, when in its lower position, engages with the lug 31 and holds the fingers o vertical. When the support is raised, the fingers o are pulled into an horizontal position by the spring 30. The first part of the vertical movement of the table b releases the fingers e, o, which then fall outwards. The table is next rotated through 90 degrees and then rises further to carry the batch above the fingers 2, which have been retracted. These fingers next return entering slots in the table below the batch, and the table then descends, leaving the papers on the fingers 2. On the second batch of papers being fed on to the table, the upward and rotary movement is again repeated but the rotation is in the opposite direction. The fingers e may be operated by an endless band. The table may be arranged to turn through 180 degrees after receiving one set of papers, being lowered to receive a second set on top before transferring them to the support.