Browse Prior Art Database

Two Element Mechanical Gate

IP.com Disclosure Number: IPCOM000076210D
Original Publication Date: 1972-Jan-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Lewis, LD: AUTHOR [+2]

Abstract

Automatic card reading devices, when positioned in public places, are often abused by the entry or attempted entry of unauthorized or foreign objects. Described is a gate mechanism which minimizes the risk of damage or jamming due to such unauthorized entry. The gate element includes a pair of barrier elements A,A' arranged in overlapping position. Each of the elements is supported on two fixed pins B which pass through oppositely oriented angled openings C in the elements. Each element is provided, on opposite sides of the entrance to the reader, with a single angled tab. As a card with rounded corners is inserted, it engages both of the tabs causing the tabs to be thrust sideways.

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Two Element Mechanical Gate

Automatic card reading devices, when positioned in public places, are often abused by the entry or attempted entry of unauthorized or foreign objects. Described is a gate mechanism which minimizes the risk of damage or jamming due to such unauthorized entry. The gate element includes a pair of barrier elements A,A' arranged in overlapping position. Each of the elements is supported on two fixed pins B which pass through oppositely oriented angled openings C in the elements. Each element is provided, on opposite sides of the entrance to the reader, with a single angled tab. As a card with rounded corners is inserted, it engages both of the tabs causing the tabs to be thrust sideways. As the tabs move outwardly from side-to-side, the associated gate members A,A' ride upward on the pins C providing a clearance for the card to enter the reader. Hole E in the gate elements is adapted to receive locking pin D, which may be energized whenever the reader is not to be used or is otherwise considered inoperative. This may be utilized where the reader is provided with a separate exit slot. Thus, after a card has been entered into the reader, the gate elements will be locked by actuating locking bold D through both of the holes E; thus, preventing the gate elements from being displaced laterally until such time as a card has been completely read and released through a separate exit provided in the reader. When this operation has been completed, th...