GB189807467A - Improved Means Applicable for Use in Operating Electrically Illuminated Signs, Advertising Media or the like. - Google Patents
Improved Means Applicable for Use in Operating Electrically Illuminated Signs, Advertising Media or the like.Info
- Publication number
- GB189807467A GB189807467A GB189807467DA GB189807467A GB 189807467 A GB189807467 A GB 189807467A GB 189807467D A GB189807467D A GB 189807467DA GB 189807467 A GB189807467 A GB 189807467A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- contacts
- lighted
- advertisement
- cam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
7467. Bell, W. T. March 28. Advertising; signs.-Incandescent lamps, arranged on an advertisement or signboard, are lighted to represent the advertisement or sign by means of apparatus such as shown in Figs. 1 and 2. The drum A, which is preferably of rectangular section, and is provided with conducting face-plates Ax, is covered with jacquard cards K arranged on a flexible carrier. The drum is reciprocated by means of a cam E towards and from spring contact-bars B, connected with the lamp wires, and thus certain lamps, determined by the jacquard, will be lighted while the front plate Ax of the drum abuts against the contacts B. On withdrawing the drum from the contacts, it is rotated a quarter turn to bring the next face into operation. To prevent sparking, a cut-out is used which breaks the circuit slightly before the retreat of the cylinder A from the contacts B. This consists of a disc or cam l of non-conducting material, provided with flanges, on which are mounted rings l<2>, l<3>, placed in metallic connection with one another by a strip l<4>. Brushes M, M<1> of the main circuit make contact with these rings, and, the ring l<2> being formed with a gap, the circuit is thus broken.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB189807467T | 1898-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB189807467A true GB189807467A (en) | 1899-03-28 |
Family
ID=32414525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB189807467D Expired GB189807467A (en) | 1898-03-28 | 1898-03-28 | Improved Means Applicable for Use in Operating Electrically Illuminated Signs, Advertising Media or the like. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB189807467A (en) |
-
1898
- 1898-03-28 GB GB189807467D patent/GB189807467A/en not_active Expired
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