Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB15337/30A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HAMMOND CLOCK Co
Original Assignee
HAMMOND CLOCK Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HAMMOND CLOCK CofiledCriticalHAMMOND CLOCK Co
Publication of GB355730ApublicationCriticalpatent/GB355730A/en
G04C15/0009—Clocks driven by synchronous motors without power-reserve
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Motor Or Generator Frames
(AREA)
Brushless Motors
(AREA)
Abstract
355,730. Lubricating bearings. HAMMOND CLOCK CO., 4115, East Ravenswood Avenue, Chicago, U.S.A.-(Assignees of Hammond, L. ; 1390, Scott Avenue, Winnetka, Illinois, U.S.A.) May 19, 1930, No. 15337. Convention date, May 20, 1929. [Class 12 (ii).] A synchronous motor, particularly for clock driving, has a rotor 54 carried in bearing plates 72 which have vertical capillary grooves 80 for lubricant and to which are attached oil reservoirs 78.
GB15337/30A1929-05-201930-05-19Improvements in or relating to alternating current electric motors
ExpiredGB355730A
(en)