Gate Valve (Patent No: 531053)

Inventor: Barber Machinery Ltd. (assignee)

Location: Edmonton

Comments: N/A

Description: The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A valve comprising a pair of pipe connections having a passage extending therethrough, each said pipe connection having a flange of substantially equilateral triangular contour extending radially outwardly from said passage, means connecting said flanges together comprising a bolt extending through said flanges adjacent each of the three apex portions thereof, said flanges having pairs of registering openings through which said bolts loosely extend, each said bolt having at one end a curved annular surface in seating engagement with one of said flanges, and a nut threaded on the other end of said bolt and having a curved annular surface in seating engagement with the other of said flanges, a sector-shaped gate swingably mounted between said flanges and having an opening therein for registry with said passage and an imperforate portion for closure of said passage, and sealing means carried by each flange and in constant engagement with said gate.

2. A valve as defined in claim 1, including a pedal fixed to each side edge of said gate and extending laterally thereof, said pedals engaging the side edges of said flanges to define the open and closed positions of said gate.

Alex. E. MacRae & Co.,
P.O. Box 1077,
Ottawa, Ontario, Canada
Patent Agents for Applicant.