Merry-go-round

摘要

831,338. Merry-go-rounds. KLAUS, K. Nov. 21, 1957 [Nov. 30, 1956], No. 36339/57. Class 132(1) A merry-go-round has a tower carrying a vertically displaceable cradle to which is attached a platform, arms or the like with seating means, the seating means being rotatable about the axis of the tower, the latter being tiltable about a horizontal axis. As shown, the merry - go - round comprises a base plate 1 on which is pivoted the floor plate 4 of the tower. The tower has a lower conical portion 6 with a frame 81 carrying rollers 7 which run on plate 4 and having a central internally toothed circular aperture 8 which meshes with a pinion 9 driven by a motor 10. Within portion 6 are struts 11 with a bearing 12 which receives the top of a shaft 13 secured to plate 4 so that motor 10 driving pinion 9 rotates portion 6, and hence tower 5 about bearing 12 Rigidly secured within tower 5 there is a compressed air cylinder 16 to which air is supplied through a pipe 17. Several -cylinders may be provided or the inside of the tower may form the cylinder, a further container may be provided and the air may be compressed in the tower. When compressed air is introduced into the lower part 18 of cylinder 16, it lifts a piston 19 and with it piston rod 20 at whose upper end is a plate 21 carrying on its perinhery tie rods 22 from which is suspended a cradle 23. Cradle 23 consists of upper and lower rings 35. 36 connected by vertical struts 37 and has rollers 55, 56 which run on rails 57 on the outer walls of tower 5. At the lower end of cradle 23, in a grove 58 supported by rollers 59, 60 and 61 moving vertically but not rotating, is a ring 24 with oppositely positioned bolts 25, 251 to which struts 27, 271 are articulated whose other ends engage a swivel pin 29. Struts 28. 281 of a stationary frame on the ground connect the pivot 2 on which the tower pivots with pin 29 which is mounted on a bearing block 30. Thus as the cradle rises the tower tilts. Arms 32 carrying cars 69 are pivoted on the ring 35 of cradle 23. A link 49 on each arm 32 is pivoted to the piston rod 50 of a compressed air cylinder 51 pivoted to ring 36 at 53. Compressed air is supplied to the cylinder to raise the arm through a piper 54. The ends of booms 45, 451 are welded to the tube 43 whose interior is closed by a plate 67 and from whose end is suspended, on a freely rotatable bolt 66, the frame 68 of the car 69 with two seats 70, 71 side by side. Each seat has a control stick 72 and these are mounted on a common shaft 73 which acts on a valve 74 controlling a pipe connecting the interior of tube 43 at 76 to a pipe 78 leading to pipe 64. The car also has a foot rest 79, elevators 81, 811 and side rudder 80. Device 83 damps the oscillation of the car about bolts 66.