Roll sign

Details Roll sign Roll sign

1996-07-10

1997-11-04

Dorner, Kenneth J.

Card, picture, or sign exhibiting

Changing exhibitor

Motor operated

40524, G09F 1112

Patent

active

056826931

ABSTRACT:
A roll sign has closed loop belts made up of a series of pivotally connected links for the belts to translate parallel to each other and vertically after passing over driven wheels. Grid members having grooved tracks into which menu strips slide for being lighted from behind to make information on the strips readable. The grid members have similar end portions or webs which contain a keyhole defined by a large hole intersecting a smaller hole. Each link has an attachment pin including a shank whose end is extending through an aperture in the link and a head on the shank that is disposed on a side of the link opposite from the end of the pin. A spring biases the head against the grid member. The large holes of the keyholes fit over the head so that when this is done the grid is shifted laterally against the spring force to have the small holes slide under the head to hold the grid. The leading end of a transparency sheet is attached to the belts by a sheet gripper member that has keyholes on opposite ends for engaging the pins on the links. The free end of the sheet is floating and not attached to the belts but there are clips that have keyholes for attaching to pins on the links and freely embrace the edges of the sheet to preclude bulging but allow some longitudinal movement of the sheet. Specialized grid members, stabilizing bars and other members can also be attached to the links using the cooperating keyhole and headed pins.

REFERENCES:
patent: 1130084 (1915-03-01), Havens
patent: 1750714 (1930-03-01), Holt
patent: 4827644 (1989-05-01), Trame

Affiliated with

Also associated with

Rating

Roll sign does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Roll sign, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roll sign will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1824164