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US 4,967,975 AGranted
Means and method for changing a portion of a movie film
OwnerRandall G. Urlikinventor
Life of this patent
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Abstract
A film holding reel includes a deformable hub on one portion thereof, and a compound lever hub deforming mechanism is used to deform that hub from a film supporting size and configuration to a film releasing size and configuration. The lever mechanism is adapted to move easily from a position in which the hub is undeformed, to an intermediate position, and then to require further manual actuation to move to a position in which the hub is in the film releasing size and configuration. A selected film portion can be changed using the film holding reel.
Claims24
A film holding reel comprising:
- (A) a first reel portion which includes
- (1) a flange and
- (2) a deformable film supporting hub having
- (a) a film gripping jaw means for releasably grasping an end of a film being supported on said hub,
- (b) anchor means attaching said hub to said flange, and
- (c) hub deforming means for deforming said hub from a film supporting size to a film releasing size, said hub deforming means having biasing means which biases said hub toward said film supporting size when said deforming means is in a first position and which biases said hub towards said film releasing size when said hub deforming means is in a second position, said hub deforming means further including a crank rotatably mounted on said flange, two connecting links each being connected at one end thereof to said hub and at the other end thereof to said crank, two arcuate slots defined in said flange and a first pin on each connecting link connecting each of said connecting links to said flange adjacent to each of said arcuate slots;
- and
- (B) second reel portion which includes means for releasably connecting said second reel portion to said first reel portion.
5 more elements
A method of changing a portion of a movie film comprising:
- (A) providing a coil of movie film on a first platter, the movie film having a selected portion of movie film to be changed and a remaining portion of movie film which will be unchanged, with the selected portion of movie film having an outer diameter and the remaining portion of movie film having an inner diameter which is larger than the outer diameter of the selected portion of movie film, the remaining portion of movie film surrounding the selected portion of movie film;
- (B) providing a film holding reel which comprises
- (1) a flange,
- (2) a deformable film supporting hub having
- (a) an outside surface on which movie film can be supported, the outside surface having an outer diameter,
- (b) a film gripping jaw means for releasably grasping an end of movie film supported on the film supporting hub,
- (c) anchor means attaching the film supporting hub to the flange,
- (d) the film supporting hub being adapted to move between a film supporting size in which the film supporting hub outside surface has a film supporting outer diameter to a film releasing size in which the film supporting hub outside surface has a film releasing outer diameter, with the film releasing outer diameter being smaller than the film supporting outer diameter, and
- (e) hub deforming means for deforming the film supporting hub from the film supporting size to the film releasing size, the hub deforming means including
- (i) biasing means which biases the hub toward the film supporting size when the deforming means is in a first position and which biases the hub towards the film releasing size when the hub deforming means is in a second position,
- (ii) a crank rotatably mounted on the flange,
- (iii) two connecting links each being connected at one end thereof to the film supporting hub and at the other end thereof to the crank,
- (iv) two arcuate slots defined in the flange,
- (v) a first pin on each connecting link connecting each of the connecting links to the flange adjacent to each of the arcuate slots, and
- (vi) the biasing means including a spring connecting the connecting links together, and
- (3) a second reel portion which includes means for releasably connecting the second reel portion to the first reel portion;
- (C) holding the film supporting hub in the film supporting size and supporting a new portion of movie film on the outside surface of the film supporting hub, the new portion of movie film on the film supporting hub being in a coil form and having an outside diameter which is less than the inside diameter of the remaining portion of movie film on the first platter,
- (D) removing the selected portion of movie film from the remaining portion of movie film on the first platter and leaving an empty area which is circumscribed by the remaining portion of movie film on the first platter;
- (E) separating the selected portion of movie film from the remaining portion of movie film on the first platter;
- (F) splicing the new portion of movie film to the remaining portion of movie film;
- (G) locating the film supporting hub with the new portion of movie film thereon in the empty area inside the remaining portion of movie film on the first platter so that such remaining portion of movie film surrounds the new portion of film and the film supporting hub;
- (H) operating the film supporting hub deforming means and moving the film supporting hub to the film releasing size;
- (I) releasing the new portion of movie film from the film supporting hub and supporting the new portion of movie film on the first platter inside the remaining portion of movie film;
- (J) removing the new portion of movie film from the film supporting hub;
- and
- (J) removing the film supporting hub from inside the new portion of movie film.
23 more elements
A reel comprising:
- (A) a first reel portion which includes
- (1) a flange, and
- (2) a deformable film supporting hub having
- (a) a film gripping jaw means for releasably grasping an end of an article being supported on said hub,
- (b) anchor means attaching said hub to said flange, and
- (c) hub deforming means for deforming said hub to decrease the peripheral size of said hub from a supporting size to a releasing size, said hub deforming means having biasing means which biases said hub toward said supporting size when said deforming means is in a first position and which biases said hub towards said releasing size when said hub deforming means is in a second position, said hub deforming means further including a crank rotatably mounted on said flange, two connecting links each being connected at one end thereof to said hub and at the other end thereof to said crank, two arcuate slots defined in said flange and a first pin on each connecting link connecting each of said connecting links to said flange adjacent to each of said arcuate slots;
- and
- (B) second reel portion which includes means for releasably connecting said second reel portion to said first reel portion.
5 more elements
A film holding reel comprising:
- (A) a first reel portion which includes
- (1) a flange and
- (2) a deformable film supporting hub having
- (a) a film gripping jaw means for releasably grasping an end of a film being supported on said hub,
- (b) anchor means attaching said hub to said flange,
- (c) hub deforming means for deforming said hub from a film supporting size to a film releasing size, said hub deforming means having biasing means which biases said hub toward said film supporting size when said deforming means is in a first position and which biases said hub towards said film releasing size when said hub deforming means is in a second position, said hub deforming means further including a t-shaped crank rotatably mounted on said flange, two connecting links each being connected at one end thereof to said hub and at the other end thereof to said crank, two arcuate slots defined in said flange and a first pin on each connecting link connecting each of said connecting links to said flange adjacent to each of said arcuate slots,
- (d) said hub including two portions and being separated adjacent to said gripping jaw means and includes a tongue on one portion of said hub which is overlapped by the other portion of said hub, said tongue being adapted to press a section of film between said tongue and the other portion of said hub to produce a frictional engagement, with said frictional engagement being arranged to prevent said biasing means from moving said hub into said film releasing size after said deforming means has moved into said second position so that said deforming means stops at a third position between said first position and said second position and additional force must be exerted on said crank to move said deforming means from said third position to said second position;
- and
- (B) second reel portion which includes means for releasably connecting said second reel portion to said first reel portion.
6 more elements
Dependencies are inferred from the claim text.