US3744889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motion picture projector for use with plural types of film-containing magazine
Assignee: Individual
•
Filing: 1972-02-23
•
Granted: 1973-07-10
•
Expires: 1992-02-23
Abstract
Abstract The housing of a motion picture projector has a platform which is movable between first and second positions to thereby respectively support from below magazines of a first type with floating reels and magazines of a second type with centered reels. The housing further supports a spindle which is movable to a first position to thereby center the reel of a magazine of the first type in the operative position of such magazine, and to a second position in which it is out of the way of a magazine of the second type when such magazine dwells in its operative position. The housing also supports stationary and movable engaging elements which can engage complementary elements on the magazines to locate and/or hold such magazines in their operative positions. A displacing lever can move the platform and the spindle, as well as the movable enegaging elements, so that the engaging elements for magazines of the second type are out of the way when the platform can support a magazine of the first type, and vice versa. The displacing lever can also move a friction wheel which serves to rotate the reels in magazines of the second type.
Inventors
- 👤 H Wilsch
- 👤 J Zanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:55
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/321
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
240 words
In a cinematographic apparatus for use with at least one first type of film magazines with uncentered reels and at least one second type of film magazines with centered reels, particularly in a motion picture projector, a combination comprising a housing; a rotary spindle movable to at least one first position in which it centers the reel of a magazine of said first type when such magazine is maintained in a first predetermined operative position relative to said housing, said spindle being further movable to at least one second position in which it allows the placing of a magazine of said second type to a second predetermined operative position relative to said housing; and first and second engaging means, at least a portion of each of said first and second engaging means being respectively movable to and from an engaging position in response to movement of said spindle to said first and second position, each magazine of said first type having first complementary engaging means cooperating with said first engaging means in the operative position of such magazine and in the first position of said spindle to locate and/or hold the magazine in said first operative position, each magazine of said second type having second complementary engaging means cooperating with said second engaging means in the operative position of such magazine and in the second position of said spindle to locate and/or hold the magazine in said second operative position.
Claim 2
Dependent Claim
240 words
In a cinematographic apparatus for use with at least one first type of film magazines with uncentered reels and at least one second type of film magazines with centered reels, particularly in a motion picture projector, a combination comprising a housing; a rotary spindle movable to at least one first position in which it centers the reel of a magazine of said first type when such magazine is maintained in a first predetermined operative position relative to said housing, said spindle being further movable to at least one second position in which it allows the placing of a magazine of said second type to a second predetermined operative position relative to said housing; and first and second engaging means, at least a portion of each of said first and second engaging means being respectively movable to and from an engaging position in response to movement of said spindle to said first and second position, each magazine of said first type having first complementary engaging means cooperating with said first engaging means in the operative position of such magazine and in the first position of said spindle to locate and/or hold the magazine in said first operative position, each magazine of said second type having second complementary engaging means cooperating with said second engaging means in the operative position of such magazine and in the second position of said spindle to locate and/or hold the magazine in said second operative position.
Claim 3
Dependent Claim
86 words
A combination as defined in claim 1, further comprising displacing means supported by said housing, said displacing means being movable with reference to said housing to thereby move said spindle between said first and second positions, the operative position of a magazine of said first type at least partially coinciding with the operative position of a magazine of said second type and said spindle being located without the region of such coincidence between said first and second operative positions in the second position of said spindle.
Claim 4
Dependent Claim
88 words
A combination as defined in claim 1, further comprising drive means supported by said housing and movable to and from a driving position in which said drive means can rotate the reel of at least one of said magazine types in the operative position of such one magazine, and means for moving said drive means to said driving position in response to movement of said spindle to that position in which said spindle permits the placing of the magazine of said one type to said operative position thereof.
Claim 5
Dependent Claim
59 words
A combination as defined in claim 1, further comprising displacing means mounted in said housing, said displacing means being movable relative to said housing to thereby effect movements of said spindle to said first and second positions and to respectively effect movements of said portions of said first and second engaging means to and from said engaging positions thereof.
Claim 6
Dependent Claim
53 words
A combination as defined in claim 1, wherein said first engaging means and said first complementary engaging means, as well as said second engaGing means and said second complementary engaging means comprise male and female portions with said male portions extending into the female portions in the operative positions of the respective magazines.
Claim 7
Dependent Claim
39 words
A combination as defined in claim 1, wherein said first and second engaging means comprise a common magazine engaging member which respectively dwells in a first and a second position in the first and second positions of said spindle.
Claim 8
Dependent Claim
39 words
A combination as defined in claim 6, wherein said common engaging member is a platform which supports a magazine of said first type in said first position, and a magazine of said second type in said second position thereof.
Claim 9
Dependent Claim
47 words
A combination as defined in claim 7, wherein each magazine of said first and second type comprises a reel-confining casing having a narrow side face which is supported by said platform in the respective position of said platform and in the operative position of the respective magazine.
Claim 10
Dependent Claim
65 words
A combination as defined in claim 6, wherein said common engaging member is provided with at least one opening and said second engaging means comprising a projection which extends through such opening in the engaging position of said second engaging means, said second complementary engaging means comprising socket means receiving said projection when a magazine of said second type dwells in the operative position thereof.
Claim 11
Dependent Claim
29 words
A combination as defined in claim 1, wherein said first and second engaging means comprises claws and said first and second complementary engaging means comprise recesses for such claws.
Claim 12
Dependent Claim
40 words
A combination as defined in claim 1, further comprising means for rotating said spindle in a direction to collect the film on the reel in a magazine of said first type while such magazine dwells in said operative position thereof.
Claim 13
Dependent Claim
98 words
A combination as defined in claim 1, further comprising drive means for rotating the reel of a magazine of said second type in the operative position of such magazine, said drive means comprising a friction wheel and each magazine of said second type having a reel-confining casing provided with a window through which said friction wheel is movable into driving engagement with the reel of a magazine of said second type in the operative position of such magazine, said friction wheel being arranged to rotate the reel which is driven thereby in a direction to collect the film.
Claim 14
Dependent Claim
40 words
A combination as defined in claim 12, further comprising means for moving said friction wheel toward driving engagement with the reel of a magazine of said second type in response to movement of said spindle to said second position thereof.
References Cited (Backward Citations)
US3656703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |