Door Operating Mechanism (Patent No: 291158)

Inventor: Bell Equipment Company Limited, (assignee)

Location: Calgary

Comments: N/A

Description: What I claim is -

1. Door operating mechanism comprising in combination with doors, slotted members mounted thereon, bracket members secured upon the door framing, bell cracks rotatably mounted in the said bracket and engaging the slotted members, and means for operating the said bell cranks to open and close the doors.
2. Door operating mechanism comprising in combination with door or the like, slotted members mounted upon the said doors, crank engaging the slotted members, brackets mounted upon the door frame with cranks rotatably mounted therein, pulley wheels mounted upon the said cranks, an operating mechanism suitably located in relation to the said door, cable connections between the said operating mechanism and the cranks, and means for applying power from the said operating mechanism through the cables to the cranks to open and close the doors.
3. Door operating mechanism comprising slotted members mounted upon the door, rotatable crank members mounted in suitable brackets engaging the said slotted members, and means for operating the said cranks remote from the door, all substantially as described.
4. Door operating mechanism comprising a door with slotted members mounted thereon, bracket members mounted upon the door framing, cranks rotatably mounted in the said brackets engaging the slotted members of the doorcable connection to the said cranks from an operating device consisting of a rotatable rod mounted in a suitably located bracket the said rod being provided with operating handle, all substantially as described.
5. Door operating mechanism comprising a door with slotted members mounted thereon, brackets mounted on the frame of the said door, cranks mounted in the said brackets/engaging the said slotted members, a primary operating device connected by cables to the said cranks and a secondary operating device also connected to operate the said cranks, all substantially as described.