公开(公告)号：CA1046852A

公开(公告)日：1979-01-23

申请号：CA239528

申请日：1975-11-13

Applicant: INT STEEL CO

Inventor： SHECKELLS AMUEL E

IPC: E05F15/10 ,  E05F3/16 ,  E06B3/90

Abstract: OPERATING AND SPEED CONTROL MECHANISM FOR REVOLVING DOORS An operating and speed control mechanism for revolving doors features an improved gearing arrangement which makes possible a gear ratio or reduction between the drive motor shaft and door shaft far greater than any gear reduction heretofore attainable, even when using a greater number of gears in the allotted space. Additionally, the improved gear transmission renders the mechanism even more compact than the most favorable prior art arrangements in the interest of satisfying more stringent architectural requirements in the installation of revolving doors. Unexpected benefits provided by the improved and simplified gearing are increased braking efficiency and extra braking force from a small centrifugal brake assembly, and greater and more efficient lubricant circulation in the mechanism for the purposes of brake surface wetting and general lubrication and cooling of the mechanism. A unique mechanism cover plate provides a magnetic flux return path allowing one-half of the permanent magnet motor to be eliminated and thereby rendering the mechanism further compact in its critical vertical dimension.

公开(公告)号：CA974381A

公开(公告)日：1975-09-16

申请号：CA210093

申请日：1974-09-26

Applicant: INT STEEL CO

Inventor： SHECKELLS AMUEL E

公开(公告)号：CA973211A

公开(公告)日：1975-08-19

申请号：CA158249

申请日：1972-12-06

Applicant: INT STEEL CO

Inventor： SHECKELLS AMUEL E

IPC: E05D15/02 ,  E05F15/10

Abstract: The power drive and speed control means for a revolving door along with related electrical control circuitry and mechanical components are all contained compactly in the center shaft or column of the door structure. Costly and time-consuming servicing of parts mounted in the ceiling or floor is eliminated.

公开(公告)号：CA904986A

公开(公告)日：1972-07-11

申请号：CA904986D

Applicant: INT STEEL CO

Inventor： SHECKELLS AMUEL E

IPC: E05F15/603 ,  E05F15/608 ,  H01H3/16 ,  H01H29/14 ,  H02P3/06 ,  H02P7/00 ,  E05F15/10

公开(公告)号：CA831760A

公开(公告)日：1970-01-13

申请号：CA831760D

Applicant: INT STEEL CO

Inventor： SHECKELLS AMUEL E