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US 5,257,859 AGranted
Drawer for catalogue card
AssigneeKewa Office & Library Products Co., Ltd.
InventorTsung-An Wong
Life of this patent
Estimating the term…
Abstract
An apparatus for keeping a stack of catalogue cards in neat order to be used, for example, in a library. If necessary, a librarian can replace a damaged catalogue card with a new one by just pressing a button at the bottom of the drawer to enable a compression spring to eject the metal rod passing through a stack of catalogue cards. Consequently, the librarian can freely rearrange the catalogue cards.
Claims2
A drawer for storing catalogue cards, which comprises:
- (a) a receptacle in which a hole is provided;
- (b) a back-up plate in which a hole is provided, said back-up plate being mounted on said receptacle;
- (c) a rod clamping-and-releasing device in which two holes are provided, said rod clamping-and-releasing device being mounted on said receptacle;
- (d) a rod passing through said receptacle, said back-up plate and said rod clamping-and-releasing device, said rod clamping-and-releasing device being further provided with two elongated holes, a pin and two extension springs, said pin being pulled down by said extension springs in order to clamp the rod, and said rod clamping-and-releasing device further comprising a button and a spring for releasing said rod.
1 more element
Dependencies are inferred from the claim text.