A method of and means for successively exhibiting and effacing publicity matter

摘要

251,133. Gusman, F., and Gusman, (nÚe Perrot), M. A. April 24, 1925, [Convention date]. Addition to 234,499. Reel and non-endless web apparatus. - The apparatus described in the parent Specification is modified to display in succession a number of flexible sheets on each side. The spring rollers 11 are carried in rotary drums formed each of two end plates 15, 16. The rods 21, 22 on the free ends of the sheets normally rest in recesses 10, 20 in the plates 15, 16, and those in position for display are engaged by hooks 23. 24 on spring- held levers pivoted to the rising free end 2 of the lazy-tongs 3, 4. On retracting the lazy-tongs by manual or other means, the hooks 23, 2@ moved by projections 36, 37 engaging fixed cams 34, 35 to release the rods 21, 22 ,and the part 2 meets and presses down guided racks 31 against springs 33. The racks 31 rotate the drums 15, 16 by toothed free-wheels 30, thus bringing thhe next rollers 11 into engagement position, a spring pawl and ratchet 28, 27 registering each drum. The projections 36, 37 engage the insides of the cams 34, 35 in descending, and the outsides in ascending.