EP 0710186 A4 19961227 - AN ANGLE DIVIDER
Title (en)
AN ANGLE DIVIDER
Title (de)
VORRICHTUNG ZUM VERTEILEN EINES WINKELS
Title (fr)
DIVISEUR D'ANGLE
Publication
Application
Priority
- AU 9400402 W 19940715
- AU PM005193 A 19930720
Abstract (en)
[origin: WO9503182A1] A drawing instrument (20) for dividing angles into fractional components is disclosed. In the case of bisection, a simple slot (27) and equidistant points (21, 22, 23, 24) along a perpendicular bisector is disclosed. In the case of other fractions, for example trisection and quadrisection, shaped slots (33A, 34A, 35A, 33B, 34B, 35B) are provided so as to define the locus of the division point, with the point defined by scribing an arc intersecting the loci, and joining the intersection to the vertex of the angle. The instrument may also include additional features such as rulers (29, 31) protractors (28) and measured holes (30) for drawing circles and arcs.
IPC 1-7
IPC 8 full level
B43L 9/00 (2006.01); B43L 13/00 (2006.01)
CPC (source: EP)
B43L 9/007 (2013.01); B43L 13/002 (2013.01)
Citation (search report)
- [X] FR 2656570 A1 19910705 - DREYER JEAN
- [X] FR 1083530 A 19550110
- [X] DE 422553 C 19251207 - ERWIN BESSER
- [X] FR 535291 A 19220412 - LUCIEN JEAN BAPTISTE DAVILLE
- [A] US 2003172 A 19350528 - BURT CARLETON W
- See references of WO 9503182A1
Designated contracting state (EPC)
CH DE DK FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9503182 A1 19950202; CA 2167394 A1 19950202; CN 1126971 A 19960717; EP 0710186 A1 19960508; EP 0710186 A4 19961227; JP H09500066 A 19970107; NZ 268855 A 19961028
DOCDB simple family (application)
AU 9400402 W 19940715; CA 2167394 A 19940715; CN 94192737 A 19940715; EP 94921538 A 19940715; JP 50480195 A 19940715; NZ 26885594 A 19940715