Movable or removable closures – Mounted for multidirectional or oblique movement – Swings on plural axes; e.g. – pivotal link arms
Patent
1986-07-21
1987-04-07
Kannan, Philip C.
Movable or removable closures
Mounted for multidirectional or oblique movement
Swings on plural axes; e.g., pivotal link arms
49 9, 49 49, 49237, E05D 1540, E01F 1300
Patent
active
046550020
ABSTRACT:
To prevent breakage, an end section that can be positioned across a roadway is connected through a slanting pivot to a supporting section, the raised and lowered positions of the supporting section being under control of a usual standard. The pintle of a hinge for the pivot lies along slanting abutting ends of the supporting section and the end section such that the end section while the sections are horizontal is maintained in position by gravity. An L-shaped latching device has a weight at one end, an intermediate pivot, and a latch at the other end to latch the sections together by gravity while the sections are raised from a horizontal position, the latch retaining said end section upright while the supporting section is fully raised.
REFERENCES:
patent: 1271877 (1918-07-01), Farman
patent: 1592972 (1926-07-01), Farnsworth
patent: 1665157 (1928-04-01), Dahnke
patent: 1997199 (1935-04-01), Pranger
patent: 4531325 (1985-07-01), Phillips
Antrim Glenn H.
Kannan Philip C.
LandOfFree
Railroad crossing warning gate does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Railroad crossing warning gate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Railroad crossing warning gate will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1078665