Twin-gate type turnstile

Details Twin-gate type turnstile Twin-gate type turnstile

1978-09-06

1980-01-22

Downey, Kenneth

Movable or removable closures

Plural wings radiate from common pivot; i.e., revolving

49 46, E06B 1108

Patent

active

041842898

ABSTRACT:
A twin-gate type turnstile in which the central barrier thereof is provided in the form of vertically staggered rows of arms extending between an opposed pair of posts, with at least terminal lengths of the fixed arms, i.e., the length portions thereof adjacent the posts extend in an arcuate course so that during the rotation of the rotors, the arms of same pass through the fixed rows of arms at about mid-length of such fixed arms thereby lessening the likelihood that a user could accidentally enter into or be caught in the space between the rotor arms and the fixed arms of the barrier if the user by mistake sought to transit the turnstile in the wrong direction or failed to exit the turnstile at the proper location.

REFERENCES:
patent: 1342253 (1920-06-01), Collins
patent: 2258896 (1941-10-01), Kelker

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