Documented Dates on New Departure (Model D back) & Corbin coaster brake hubs
New Departure Bell Co. / New Departure Manufacturing Co., Bristol, Conn. Rear Coaster Brake Hubs:
New Departure "Junior" - earliest ?; known 1936; last ? (Used on children's sidewalk cycles)
New Departure "Endee" - earliest ?; known 1930; last ? (Used on children's scooter bikes & bicycles)
New Departure Model D - earliest Dec 1933
New Departure Model C - 1927 to 1933
New Departure Models B & BB (Tandems & Motorcycles) - known 1906 to 1908
New Departure Model A - 1902 to 1928 (originally known as "1903 Model" 1902/03, "1904 Model" 1903/04, called Model A by 1906)
New Departure Coaster Brake Pat'd (on cast brake arm) "1902 Model" - 1902
New Departure Bell Co. Bristol Conn. U.S.A. Pat'd (on cast brake arm) "Improved 1901 Model" - May 1901 to December 1901
New Departure, Bristol Conn., U.S.A. (on machined brake arm) "First 1901 Model" aka "The Modern Witch" - Dec. 1900 to May 1901
The "New Departure" Security Coaster Cyclometer - 1900 (Same as "New Departure" Automatic Coaster with an added cyclometer attached inside the sprocket side of the hub; straight-pull spokes).
The "New Departure" Automatic Coaster - November 1899 to 1900
"THE NEW DEPARTURE COASTER BRAKE & HUB, PATENTED, MF'D BY P&F CORBIN" on machined brake arm aka "New Departure Automatic Coaster & Brake" in catalog - 1898 to 1900 (First True Coaster Brake Hub; designed by ND, mf'd by Corbin, sold by both; machined brake arm; straight-pull & side-pull spoke examples known).
New Departure Controller Pat'd on brake arm on right drive side - created 1897; 1898 This is the very first Coaster "Decelerator" Brake Hub, designed by New Departure Bell, sold as "NEW DEPARTURE CONTROLLER" in 1898 (Unique coaster brake arm on the right drive side
P.&F. Corbin / Corbin Screw Corp, New Britain, Conn. Rear Coaster Brake Hubs:
Corbin Two-Speed Coaster Brake Model 10 - 1906 to 1920 (cast brake arm 1906-1907, machined brake arm 1908-1920)
Corbin Duplex Coaster Brake Model 8 - 1909 to 1922 (machined brake arms only; concave hub shell)
Corbin Duplex Coaster Brake Model 7 - 1908 to 1909 (first machined brake arm only; concave hub shell)
Corbin Duplex Coaster Brake Model 6 - 1905 to 1909 (last cast brake arm only - "Corbin Duplex, The Corbin Screw Corp., New Britain Conn.U.S.A."; first concave hub shell)
Corbin Duplex Coaster Brake for Chainless Bicycles. - known 1906 (1906 cat Post #27)
Corbin Duplex Coaster Brake Model 5 - motorcycle & bicycle tandems only known 1905-1911. Numerous models 5-A to 5-H.
"Corbin Duplex, The Corbin Screw Corp., New Britain Conn.U.S.A." on brake arm "1904 Model" - 1904 (cast brake arm; last straight hub shell; came out Dec. 1903)
"New Departure Duplex, P.&F.Corbin. New Britain Conn.U.S.A." on brake arm aka "1903 Model" - late 1902 to 1903 (cast brake arm; straight hub shell: First use of "Duplex" on Brake Arm)
"New Departure Coaster, P.&F.Corbin. New Britain Conn.U.S.A." on cast brake arm aka "1902 Model" - 1902 (cast brake arm, straight hub shell)
"New Departure Coaster, P.&F.Corbin. New Britain Conn.U.S.A." aka"1901 Model" - 1900 to 1901 (straight-pull spokes; straight hub shell)
"THE NEW DEPARTURE COASTER BRAKE & HUB, PATENTED, MF'D BY P&F CORBIN" on machined brake arm aka "New Departure Automatic Coaster & Brake" in catalog - 1898 to 1900 (First True Coaster Brake Hub; designed by ND, mf'd by Corbin, sold by both; machined brake arm; straight-pull & side-pull spoke examples known).
NOTE 1: CORBIN REAR COASTER BRAKE HUB ARM STYLES:
Machined coaster brake arms - 1898 to 1900/01 (P.&F.Corbin) & 1907 to 1921 (Corbin Screw Corp)
Cast coaster brake arms - 1900 (1901 Model) to 1906
NOTE 2: "P.&F. CORBIN CO." & "CORBIN SCREW CORP'N" ON COASTER BRAKE HUB ARMS
The Corbin Screw Corporation - 1904 to 1921 (Came into use sometime after May 2, 1903)
P.&F.Corbin Co. - 1898 to 1903
NOTE 3: USE OF "NEW DEPARTURE" ON COASTER BRAKE HUB ARMS
New Departure Bell Co. & New Departure Manufacturing - 1897 forward
P&F Corbin - 1898 to 1903 (New Departure Coaster in 1902 & New Departure Duplex in 1903
The Corbin Screw Corporation - "Corbin Duplex" used instead 1904 & later (NOTE: Corbin continued to state "New Departure" in catalogs and even the brake arms in their ads appear as New Departure Duplex from 1905 through 1907 but I am firmly convinced that The Corbin Screw Corporation never actually used New Departure Duplex on the hub coaster brake arms after 1903; One side note, 1904 ads alone show "Corbin's Duplex" on the coaster brake arm which was also never used)