History of Westclox Synchronous Electric Clocks part 3

Name "Western Clock Company" modified to "Westclox"

Motor sort M1 introduced - Westclox own style of self-starting synchronous motor. Clocks using this motor included Bachelor (1938 - 1947), Manor (1938 - 1947), Big Ben vogue five Chime Alarm (1938 - 1941), Pittsfield (intro. 1939). Note: Bachelor, Manor, and Pittsfield used sort M2 motor beginning ca. 1940.

Smaller version of Westclox self-start synchronous motor introduced - varieties M2 and M3. a number of the models that used these motors are: Baby Ben vogue five electrical (intro. 1940), Big Ben vogue five electrical (not Chime Alarm) (intro. 1941), Dunbar (1946 - 1952), Logan (intro. 1946), Big Ben electrical in rectangular brown Bakelite case (1947 - 1952), Oracle (intro. 1947), Moonbeam - flashing light-weight grandfather clock (intro. 1949), and Switch Clock appliance timer (intro. 1949).

Motor sort M4 introduced. employed in Belfast (intro. 1948), Barry (intro. 1948), Bantam (intro. 1949), Greenwich (1950 - 1954), Melody (intro. 1950), Glo-Larm (intro. 1953), Ardmore, Orb, Big Ben and Baby Ben vogue seven electrical (intro. 1956), and lots of alternative models.

Motor with sealed rotor (detachable from field coil) introduced (M5).