Patent GB-190517786-A (GB)
Title: Improved Apparatus for Advertising by Means of a Mechanical Device.
Inventor: LLOYD ROBERT PIERPOINT
Filed: 1905-09-02
Granted: 1906-02-01
Abstract: 17,786. Lloyd, R. P., and Noel, P. Sept. 2. Advertising is effected by a series of screens, three for example moving upon a stage, the two foremost being cut or perforated as borders to the third. Two moving side screens are also provided, all being actuated by a spring, by electricity, or by hydraulic, pneumatic, or other means, through the intermediary of machinery, so as to move slowly and stop when each advertisement has been completely disclosed. The proscenium is also automatically closed by a front sheet while the screens are being brought back again for re-exhibition. The three main screens A, B, C are, to begin with, rolled about a cylinder 9 and are respectively led over pairs of rollers 1, 2 ; 4, 5 ; 6, 7 to a second cylinder 3, their ends being securely fixed to the cylinders. On the shaft 10 being driven, through a bevel-wheel 8, the second cylinder 3 is rotated by a bevel-wheel 11 actuated by a pin-andslot coupling, and the screens A, B, C are simultaneously wound down until a stop-block 12 at the end of the finished advertisement depresses a lever 13, when a catch 14 actuated thereby through a knuckle-joint 13<a> escapes a stop 15. The arm 16 supporting the lever 13 and catch 14 is then brought over by a_spring 17, depressing another arm 18 and with it a flange 19 until caught by a spring 19<a>, disconnecting the bevel-gear 11 so that the cylinder 3 stops. A clutch 20 being thus closed, an arm 21 is rotated. It encounters first a stop 22, so replacing the catch 14, and preparing the lever 13, which has been raised by a spring 22<a>, so as to clear the block 12 in readiness for the next stop-block 12. The arm 21 then forces out the spring 19<a> holding the flange 19 so that the gearing 11 is again closed by a spring 23, and the cylinder 3 again rotates, and so on. When the top cylinder 9 is empty, a roller 24 is caused to drop into a hollow 25 by a spring 26, so pulling up a rod 27, by means of a second arm 27<a>, that an arm 28 is caused to disengage the clutch 20 until a catch 30 retains a flange 29. Immediately afterwards, a third arm 34 draws back a controlling- catch 31 so as to allow a bevel-wheel 33 to engage and drive the upper cylinder 9 and rewind the screens A, B, C until the lower cylinder 3 is again empty, when a second roller 35 drops in a hollow 3<a>. This causes the bevel-wheel 33 to disengage from the cylinder 9 through an arm 36, rod 37, and lever 38, the catch 31 again operating, and another rod 39 being depressed a collar 30<b> acting on an arm 33<a> releases the catch 30 so that the clutch 20 is again closed and the screens are operated as before. The side screen is drawn from a vertical roller over guide-rollers nearer the centre of the stage, and is wound on to another roller driven from the main shaft through pairs of bevel-wheels 40, 43. A stopblock 12<a> at each section depresses an arm 41, and raises a catch 42, allowing a spring 64 to throw the bevel-wheels 43 out of gear, the flange 44 being retained by a catch 45. The side screen is restarted by the flange 19 raising a catch 46 and causing a lever 48 to press the bevel-wheels 43 into gear again, and so on. The other side screen is similarly worked through top gearing 62, 63. When the previously-described rod 27 is raised, it releases the flange 44 from the catch 45 so that other bevelwheels 50 come into operation for rewinding the side screens until the movement for the restarting of the lower cylinder 3 raises the catch 46 and brings the bevel-wheels 43 into gear again, as before. In addition, the pull on the rod 27 causes, through another rod 51, a lever 52 to press other bevel-wheels 54 into gear, the flange 53 being held by a spring 57 until the front sheet F is drawn down far enough for the attached stop-block 55 to contact with an arm 56 and so releasing the flange 53 allows the gear 54 to disconnect. When this happens, the spring roller 59 pulls up the sheet F until caught by a catch 60 so that it remains stationary while the screens are rewound. This accomplished, the previously-described depression of the rod 39 pulling on another rod 61 releases the front sheet from the catch 60, so that it is rolled up by the spring roller 59.