GB290381A - Improvements in and relating to advertising devices - Google Patents

Abstract

290,381. Kerr, R. L. Feb. 22, 1927. Reel and endless-web apparatus.-In apparatus comprising an endless display band, which is advanced step-by-step into a viewing aperture by a reciprocating carriage moving across the aperture, the carriage having a front cover bar and a catch device engaging and disengaging the band at the appropriate times, a second carriage is provided at the back of the apparatus for taking up any slack in the band. The rear carriage 22 is positively reciprocated by connecting it by chains 25, 26 with the front carriage 10. The pivoted catches 57 are spring or gravity operated, and engage extensions of rods 60 removably connecting together the sections forming the bands 29. 43, either to draw in or to push out the band from the window 2. One or two bands may be used, and the member 10 may be provided with an apron to hide the picture going out of view. The bands 29, 43, after passing round storage and tensioning rollers 30 - - 42, 44 - - 56, take over rollers 23, 24 on the carriage 22. The bands are adjusted so that the catches 57 take behind the rod ends of the displayed band section when the member 10 reaches the end of its path, and in its further movement the band to be brought into view is held against retrograde movement by a wedge stop 61, 63, which engages adjustably the ends of one of the rods 60. The catches 57 may be horizontally or vertically pivoted, and the member 10 may be reciprocated bv endless moving chains 13 carrying pins 12 engaging slots 14. The speed of the member 10 may be slowed down towards the ends of its path by a variable resistance controlled by the member 10. or by the reduction gear 20 through which the chains 13 are driven. The bands 29, 43 may move horizontally, and more than one window 2 may be provided.