We claim:
1. An apparatus for displaying images, said apparatus comprising
a light transmissive inner hollow body having a central axis and a surface with translucent images thereon,
an electric light source inside said inner hollow body,
an outer hollow body surrounding said inner body and having a common central axis, said outer hollow body comprising a light transmissive material which serves as a projection screen, whereby said images can be projected onto said projection screen by said light source, and
an electric motor which rotates one of said inner hollow body and said outer hollow body with respect to the other of said inner hollow body and said outer hollow body whereby said projected images move on said projection screen.
2. An apparatus as in claim 1 wherein said electric motor rotates said inner hollow body about said axis with respect to said outer hollow body, whereby said projected images move on said projection screen.
3. An apparatus as in claim 1 wherein both said inner hollow body and said outer hollow body are at least substantially spherical and concentric.
4. An apparatus as in claim 2 further comprising a housing fixed to said outer hollow body, said housing holding said electric motor and said light source, said light source being rotatable with respect to said housing.
5. An apparatus as in claim 4 further comprising a rotating member which is driven by said motor for rotation relative to said housing, said light source being fixed in said rotating member, said inner hollow body having a neck surrounding a first opening concentric to said axis, said neck engaging said rotating member.
6. An apparatus as in claim 5 wherein said inner hollow body has a second opening concentric to said axis and axially opposed from said first opening.
7. An apparatus as in claim 4 wherein said outer hollow body has a first opening concentric to said axis, said opening engaging said housing.
8. An apparatus as in claim 7 wherein said housing is formed with a circumferential flange, said opening being formed in two halves with a channel concentric to said axis, said channel engaging said flange when said halves are assembled.
9. An apparatus as in claim 8 wherein both said inner hollow body and said outer hollow body are at least substantially spherical and concentric.
10. An apparatus as in claim 6 wherein said outer hollow body has a second opening concentric to said axis and axially opposed from said first opening.
11. An apparatus as in claim 1 wherein said outer hollow body has an outer surface on which a translucent material is provided, said translucent material serving as said projection screen.
12. An apparatus as in claim 1 wherein said outer hollow body has a surface with translucent images thereon, said inner hollow body being free of images adjacent to said images on said outer hollow body.
13. An apparatus for displaying images, said apparatus comprising
an inner hollow body having a central axis and a surface with images thereon,
an outer hollow body surrounding said inner body and having a common central axis, said outer hollow body having an area which provides visibility of said images, and
an electric motor which rotates said inner hollow body about said axis with respect to said outer hollow body, whereby said images move with respect to said outer hollow body.
14. An apparatus as in claim 13 wherein both said inner hollow body and said outer hollow body are at least partially spherical and concentric.
15. An apparatus as in claim 13 further comprising a housing fixed to said outer hollow body, said housing holding said electric motor.
16. An apparatus as in claim 15 further comprising a rotating member which is driven by said motor for rotation relative to said housing, said inner hollow body having a neck defining a first opening concentric to said axis, said neck engaging said rotating member.
17. An apparatus as in claim 15 wherein said outer hollow body has a first opening concentric to said axis, said opening engaging said housing.
18. An apparatus as in claim 17 wherein said outer hollow body has a second opening concentric to said axis and axially opposed from said first opening, said apparatus further comprising a cover which is engageable to said outer hollow body to cover said first opening.
19. An apparatus as in claim 13 further comprising a light source located inside said inner hollow body, said images on said inner hollow body being translucent.
20. An apparatus as in claim 19 wherein said outer hollow body comprises a translucent material which serves as a projection screen, whereby said translucent images are projected onto said projection screen by said light source.
21. An apparatus as in claim 13 further comprising at least one tubular sleeve fitted to a respective at least one of said inner hollow body and said outer body, said at least one tubular sleeve bearing at least one of translucent imagery and a translucent projection screen.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A tip for a ball point pen, comprising:
a spherical ball; and
a tip body having the front end formed in a conical shape, a ball house formed at the end of an ink outflow channel, and a ball support formed by making the front end portion narrower such that the ball is partially exposed and supported in the ball house,
wherein the external circumferential surface of the front end for forming the ball support of the tip body is formed at a taper angle of 3 to 10\xb0.