Patent-classifications of amusement rides

"Merry-go rounds, Swings, rocking-horses, chutes, switchbacks, similar devices for public amusement".

European Classification (ECLA) A63G

Roundabouts, A63G1	Up- and down-hill tracks, A63G7 Also B61F Rail vehicle suspensions	Swings A63G9	Russian Swings, Great Wheels, e.g. Ferris wheels, A63G27	Chutes, Helter-skelters, A63G21
A63G1/16 creating illusion of travl, e.g. US3468533 A63G1/21 with centrifugally swingable suspended seats, e.g. US2570981 A63G1/24 withseats performing movements in a horizontal plane other than circular motion , e.g. US3724842 A63G1/26, with seats moving in planetary motion in horizontal plane US3506260 A63G1/34 ... with seats moving in an undulated track, also A63G1/28, e.g. GB190922976 Vertically undulating track roundabout, and GB1049394 US2541586 A63G1/44 Roundabout with turntables moved up and down	Up- and down-hill tracks DE9418497U US793333 WO0006274 Rails characterised by means for preventing derailing, B61F9 e.g. Chassis for Rail-bound exhibition vehicle US5119734 and Wooden rail for amusement ride B61 K7/04: Railway brakes - with clamping action - operating pneumatically or hydraulically, e.g. DE2705826,	Looping- the loop swings, A63G9/08, e.g. US4339121 A63G39/16 Driving mechanisms ..., t.ex. WO2005113097 Pneumatically activated ...,	US169797 DE2937703 GB1212779 US3612517	Chutes A63G21/04 with fixed rails, e.g. US4270459, US4165695 , DE20307868U A63G21/08 with additional rotation of cars A63G21/12 With special cars, e.g. horse-shaped A63G21/18 water chutes, e.g. US3853067 och US3830161
		Auto-car like self-drivers ... A63G25	A63G3 Water roundabouts, e.g.	A63G31/00, Amusement arrangement with moving substructures
		EP0159555 (Bumper)	US4149469 , US4543886	US2003027646 A63G31/00; EP0824032 A63G31/02, e.g. GB1015732

Miscellaneous

A63B69/32H , training apparaturs .... for vertical blows on horizontal surface, t.ex. US3017181
(Gyro, cf Tom Tits')
Read about wooden track and wheel structures
US3140092 Epicyclic roundabout
US4339121 Flying carpet (Schwarzkopf)
Gravitron
How can patents in G01N21/91 be useful?

http://physics.gu.se/LISEBERG/T/patent.html, AMP, 2006-07-02