FR Patent: FR-4,172
|
Mécanique pour le débitage des bois
Bandsaw
|
|
Patentee:
|
|
| Anne-Pauline Crépin (exact or similar names) - Faubourg Saint-Antoine, France |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Aug. 29, 1846 |
| Granted: |
Oct. 28, 1846 |
Espacenet patent
Report data errors or omissions to steward
Jeff Joslin
|
|
Description: |
| The inventor was a young noblewoman who was a woodworker ("découpeuse") and who developed a method of joining the ends of a steel band to create a continuous cutting blade, and also designed the machine to use that blade. The method of joining has been described as soldering, brazing or welding; brazing seems most likely, given the available technology and the relative merits of the three methods. In any event, A. Périn of Paris acquired the rights to Crépin's patent, added in metallurgical improvements and improved upper blade guides and blade tensioning mechanism to eventually create the first truly practical bandsaw. Périn's improvements occurred over a couple of decades; see, for example, US patent 97,801. Périn's bandsaw blades would be imported to the USA beginning about 1867, which enabled the first commercially successful bandsaws in North America.From Alphandery's "Dictionnaire des Inventeurs Français": "(E)lle prit le 29 août 1846 un brevet pour une scie circulaire qui révolutionna la technique et qui était l'actuelle scie à ruban à lame mince soudée, utilisable grâce à des guides en bois. Cette scie facilitait considérablement le débitage du bois de placage."In English: "On August 29, 1846, she took a patent for a revolutionary circular saw which was the current band saw with a thin welded blade, usable thanks to wooden guides. This saw greatly facilitated the cutting of veneer lumber."From Bulletin des lois. Partie principale, Volume 72, Page 529, translated: "31. The transfer registered at the secretariat of the prefecture of the department of the Seine, on March 24, 1848, made to the general partnership and limited partnership Périn et compagnie, having its registered office in Paris, passage de la Bonne-Graine, no. 16, by the lady Crépin, of her rights to the patent of invention of fifteen years which she took, on August 29, 1846, for a mechanism specific to the cutting of wood." |
|
