See also derailleurs from the 1930s

Browse the scanned material by year:

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1930

1. French patent # 669,030 addition # 37,905 - Le Simplex
   

2. US trademark # 799,761 - Huret
   

1931

1. TriVelox brochure?
   

2. UK patent # 382,104 - Trivelox
   

1932

1. French patent # 729,910 - Huret
   

2. French patent # 739,662 - Simplex Champion de France
   

3. French patent # 742,354 - nothing specific
   

4. Terrot Cycles, Vélomoteurs   1932
   

1933

1. Cycles Terrot 1933   1933
   

2. French patent # 760,854 - Simplex Tour de France
   

3. French patent # 760,855 - Super Simplex
   

4. UK patent # 407,505 - Cyclo Witmy
   

5. UK patent # 413,422 - Cyclo Sinclo?
   

1934

1. French patent # 669,030 addition # 45,176 - Simplex Ch. de Fr
   

2. French patent # 729,910 addition # 44,390 - Huret
   

3. French patent # 785,604 - Westminster
   

4. French patent # 778,474 - Super Simplex
   

5. UK patent # 420,128 - Super Champion
   

6. US patent # 2,010,248 - Fichtel und Sachs 9/a
   

1935

1. Cyclo Gear - Care, Maintenance & Fitting Instructions?
   

2. French patent # 784,246 - Huret
   

3. French patent # 791,390 - Simplex
   

4. French patent # 791,724 - Simplex Route
   

5. French patent # 791,757 - Simplex Champion 35
   

6. French patent # 792,639 - Westminster Route
   

7. French patent # 793,271 - Super Simplex
   

8. French patent # 799,010 - Super Simplex
   

9. French registered design # 26617-001 - Barry
   

10. French registered design # 31910-002 - Westminster
    

11. French registered design # 31961-001 - Simplex Selection
    

12. French registered design # 31963-001 - Simplex
    

13. French registered design # 31964-001 - Super Simplex
    

14. French registered design # 31965-005 - Simplex Champion 35
    

15. French registered design # 31965-006 - Simplex Champion 35
    

16. French registered design # 31965-008 - Simplex Selection
    

17. French registered design # 31971-004 - Super Simplex
    

18. Terrot Cycles 1935
    

19. UK patent # 451,722 - TriVelox A1
    

20. UK patent # 457,480 - Cyclo Standard
    

21. UK patent # 459,483 - Simplex Route
    

22. US patent # 2,099,477 - Rota
    

23. US patent # 2,117,116 - TriVelox A1
    

24. 
    

1936

1. Cyclo Catalogue 362
   

2. F & S Ketten-Umschalter fur Torpedo mit dreifachem Zahnkranz
   

3. French patent # 806,921 - Simplex Selection
   

4. French patent # 813,241 - Huret
   

5. French registered design # 27535-001 - Barry
   

6. French registered design # 31966-001 - Super Simplex
   

7. French registered design # 31966-005 - Simplex Route Léger
   

8. French registered design # 31966-008 - Simplex Route Léger
   

9. French registered design # 31969-001 - Simplex Champion 36
   

10. French registered design # 31969-003 - Simplex Selection
    

11. French registered design # 31974-002 - Simplex Route Léger
    

12. French registered design # 31974-003 - Simplex Route Léger
    

13. The CTC Gazette - Villiers advert
    

14. UK patent # 482,217 - Cyclo Ace
    

15. US patent # 2,108,941 - Morgan Helical derailleur
    

1937

1. Cyclo Catalogue 373
   

2. French patent # 792,639 addition # 48,146 - Westminster Rte
   

3. French patent # 835,203 - Simplex
   

4. French registered design # 28861-002 - Gassion
   

5. The Cyclist March - Cyclo advert
   

6. The Cyclist September - Cyclo advert
   

7. TriVelox catalogue
   

8. UK patent # 493,085 - Cyclo Poly
   

1938

1. Cyclo Catalogue 382
   

2. ESKA - order card?
   

3. French patent # 791,757 addition # 49,094 - Simplex Ch. du M
   

4. French patent # 842,624 - Simplex
   

5. French patent # 848,081 - Simplex
   

6. French registered design # 31973-002 - Simplex Ch. du Monde
   

7. French registered design # 31973-003 - Simplex Ch. du Monde
   

8. French registered design # 31973-004 - Simplex Ch. du Monde
   

9. French registered design # 32881-001 - Westminster Route
   

10. French registered design # 32883-001 - Westminster
    

11. National Clarion Cycling Club - Handbook for Season 1938
    

12. Simplex - Les merveilles du Salon 1937-38
    

13. UK patent # 508,947 - Cyclo Star
    

14. UK patent # 509,793 - Cyclo Oppy
    

1939

1. Cycling - Osgear advert (1st style)
   

2. Cycling - Osgear advert (2nd style)
   

3. Cyclo Catalogue 399
   

4. Ihaga S.A.G. - instructions
   

5. Ihaga S.A.G. - box wrapper
   

6. French patent # 669,030 addition # 50,197 - nothing specific
   

7. French patent # 739,662 addition # 51,212 - Simplex Ch. de Fr
   

8. Simplex - catalogue
   

9. Simplex 1939 - leaflet
   

10. US patent # 2,187,368 - Simplex Champion de France