Patent GB-190507926-A (GB)
Title: Improvements in Apparatus for Advertising Purposes.
Inventor: WOOLFE HENRY
Filed: 1905-04-13
Granted: 1906-04-12
Abstract: 7926. Woolfe, H. April 13. Advertising. - Relates to improvements on, or additions to, the invention described in Specification No. 23,088, A.D. 1904, for successively displaying advertisements behind a window in a frame, and for announcing, by means of a phonograph, information relating to the part i c u l a r advertisement then on view. The advertisements are carried on a band which is wound step by step from an upper roller on to a lower roller, while the stylus of the phonograph travels along its cylinder. When the band is completely unwound from the upper roller, a curtain is dropped in front of it. The band is then rewound again on the upper roller, and the phonograph stylus s is raised and returned to the beginning of its cylinder. The curtain is then raised again, the stylus is lowered, and the operations described above are repeated. The phonograph cylinder q, Figs. 4 and 9, is driven by belt gearing from a main shaft n, Fig. 4, operated from a suitable motor. The stylus y<1> is connected, so that it can be raised off the cylinder when required, to a carrier s, which slides to and fro along rods u, v. The tube 7 of the phonograph is jointed at 9 and 7<x> to permit this motion. The tube opens in a bell-mouth 8 arranged in the front of the machine. The carrier s is actuated by a part w mounted loosely on the rod u and provided on opposite sides with half-nuts y, 4 adapted to engage respectively with shafts r, t driven in opposite directions from the shaft of the cylinder q. During the speaking time of the phonograph the nut y is held against a slow thread on the rod r, by a depending portion 3) of the part w engaging with a fixed guide 29. At the end of its forward movement it is pressed forwards by a spring (not shown) and passes to the front of the guide 29, so that the nut 4 engages a quick thread on the shaft t, and returns the carrier to its initial position. During this motion the lug 30 engages the front of the guide 29. At the end of the motion it is pressed again to the back of the guide by its engagement with a second spring. An arm 6 on the part w raises the stylus y' during the backward movement. The cylinder q may comprise several parts, frames 88 being provided at each joint to engage the arm 6 and cause it to lift the stylus over the joint. At the beginning of its movement, the advertisement band c, Figs. 4 and 5, is wound on its upper roller b. Its lower roller d is geared to a shaft 11 on which is a fusee connected by a cord passing over pulleys and operated by a heavy weight 1 so as to wind the band c on to the roller d. This motion is made intermittent by securing on a shaft 18 geared to the roller b a plate 19, Fig. 9, having slots 21, and adapted to engage a lug 20 on the part w during the forward motion of that part. Each time the lug 20 comes opposite a slot 21, the shaft 18 is allowed to make one turn, its further movement being prevented by the lug 20. To reduce jar, the plate 19 is secured to or formed in one with a plate 26 pivoted on the shaft 18, and pressed by slotted spring clips 22 against arms 23 secured to the shaft 18. The shaft 18 is geared to a shaft 28 adapted to be connected, when the band c is to be rewound on the roller b, by a clutch 38, Fig. 4, to gearing operated from the shaft n. The clutch is pressed into a closed position by a spring-actuated lever 45, but is normally held open by a locking-lever (not shown). When all the advertisements have been displayed, the locking-lever is raised by an arm on a shaft driven from the shaft 18 so as to make a halfturn during the whole motion of the band c. The bind is then wound on the roller b until a stop on a wheel secured to the slow shaft reopens the clutch, and allows the locking-lever to re-engage. The lug 20 is withdrawn during this reversal to allow the shaft 18 to rotate. The weight is prevented from reversing the movement of the band c when the clutch is opened, by a lug carried on a pivoted frame 83, pressed by a spring into the path of the plate 19. The lug is inclined on its lower edge to allow the plate 19 to spring past it when the band is being wound on the upper roller. It is withdrawn, to allow the band to be again exposed, by an abutment on the part w which enters a notch in the pivoted frame, moves the frame to one side, and, by springing above it, holds it there until the forward movement is complete. A weighted curtain e which is lowered during the reversal of the band c is wound on a roller f carrying oppositely-acting ratchet-wheels 52, 53 having retaining-pawls 54, 55 secured to a sliding shaft 56 so that only one can engage at a time. The shaft 56 is operated by the engagement of the carrier s with a lug on the shaft so as to reverse the pawls 54, 55 at each end of its path. On the first reversal, the curtain falls and is held down by the other pawl. The fall of the curtain raises a weight No. 2 connected by a chain 59 passing over a sprocket on the roller f to a counterpoise No. 3. The chain 59 passes through a hole in a weight No. 4 sliding in a guide 62. A chain 68 carrying weights No. 5 and No. 6 passes over a sprocket on the shaft 18 and through a hole in the weight No. 4. The weights No. 2 and No. 5 are too large to pass through the weight No. 4. When the pawls 54, 55 are again reversed, the weight No. 4 depresses the weight No. 2 and raises the curtain. The weight No. 4 is raised by the chain 68 during the display of the advertisements. It is held up by the weight No. 2 as the weight No. 5 falls.