US 3,945,719 A · Motion picture camera

Abstract

In a motion picture camera which permits selective use of a magazine A of the type having an unreleasable reverse-preventing means provided on a take-up shaft for taking up thereon exposed film and a magazine B of the type having an extraneously releasable reverse-preventing means provided on a take-up shaft and which has a take-up gear rotatable in response to a motor and a member secured to the gear for rotating the take-up shaft with rotation of the gear, there is provided detector means displaceable to a first position upon insertion of the magazine A and to a second position upon insertion of the magazine B to identify the magazine inserted. The take-up gear is integrally formed with the detector means for displacement in the axial direction thereof. There is also provided control means manually operable for displacement from a first position for permitting rotation of the takepup gear to a second position for disabling the take-up gear from rotating when the detector means is in its first position, and means for releasing the reverse-preventing means of the magazine B when the magazine B is inserted.

Claims14

Dependent claims

A motion picture camera which permits selective use of a magazine A of the type having an unreleasable reverse-preventing means provided on a take-up shaft for taking up thereon exposed film and a magazine B of the type having an extraneously releasable reverse-preventing means provided on a take-up shaft and which has a take-up gear rotatable in response to a motor and a member secured to said gear for rotating said take-up shaft with rotation of said gear, said camera comprising:

detector means displaceable to a first position upon insertion of said magazine A and to a second position upon insertion of said magazine B to identify the magazine inserted, said take-up gear being integrally formed with said detector means for displacement in the axial direction thereof;
control means manually operable for displacement from a first position for permitting rotation of said take-up gear to a second position for disabling said take-up gear from rotating when said detector means is in its first position;
and
means for releasing the reverse-preventing means of said magazine B when said magazine B is inserted.

1 more element

A motion picture camera which permits selective use of a magazine A of the type having an unreleasable reverse-preventing means provided on a take-up shaft for taking-up thereon exposed film and a magazine B of the type having an extraneously releasable reverse-preventing means provided on a take-up shaft and which has a take-up gear rotatable in response to a motor and a member secured to said gear for rotating said take-up shaft with rotation of said gear, said camera comprising:

detector means displaceable to a first position upon insertion of said magazine A and to a second position upon insertion of said magazine B to identify the magazine inserted, said take-up gear integrally formed with said detector means for displacement in the axial direction thereof;
control means manually operable for displacement from a first position for permitting rotation of said take-up gear to a second position for disabling said gear from rotating;
blocking means responsive to said detector means to be displaced to block the displacement of said control means from its first position to its second position when said detector means is in its second position;
and
means for releasing the reverse-preventing means of said magazine B when the magazine B is inserted.

2 more elements

Dependencies are inferred from the claim text.

Motion picture camera

Life of this patent

Motion picture camera

Life of this patent

Abstract

Claims14