Film sheet load magazine
First Claim
1. A sheet feeding magazine, which comprises:
- an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot;
means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; and
means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot.
1 Assignment
0 Petitions
Accused Products
Abstract
A film sheet load magazine is adapted to hold a stack of superimposed films with at least central portions of the films in a curved configuration and leading ends of the films adjacent a film separator mechanism. The curvature of the films is such that they retain themselves in desired positions in the magazine independent of the orientation of the films with respect to gravity. When a top cover of the magazine is opened, floating primary feed rollers are raised by spring-biasing assemblies to facilitate loading of the films under the rollers, and when the top cover is subsequently closed, the rollers are moved into feeding engagement with an innermost film, and the films are held in position by leaf biasing springs. A cleaning mechanism removes contaminants from the primary feed rollers, which feed each film to secondary feed rollers driven at a faster speed than the primary feed rollers. A number-of-films-remaining mechanism, which may be of a mechanical or electrical type which is adjustable for films of different thicknesses, and which is automatically preset to the number of films in the magazine upon closing of the cover, is responsive to downward movement of the primary feed rollers as each innermost film is fed from the stack. A system also is provided for indicating if enough films remain in the magazine for a particular film processing operation and to inhibit operation of an associated device if insufficient films remain. The magazine may be self-driven or driven from an associated device.
91 Citations
75 Claims
-
1. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; and means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of sheets which are in superimposed relationship, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for engaging and feeding each of the sheets from the enclosure through the feed-out slot; means for opening and closing the enclosure; and means responsive to the opening-and-closing means for moving the sheet feeding means into and out of a sheet-feeding position. - View Dependent Claims (16)
-
-
17. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of sheets which are in superimposed relationship, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for engaging and feeding each of the sheets from the enclosure through the feed-out slot, the sheet feeding means including roller means for engaging and feeding the sheet; and means for cleaning the feed roller means as the feed roller means rotates. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of sheets which are in superimposed relationship, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for engaging and feeding each of the sheets from the enclosure through the feed-out slot; and means for indicating the number of sheets remaining in the enclosure as the sheets are fed by the sheet feeding means, the number-of-sheets-remaining indicating means being preset automatically to indicate the number of films in the enclosure in response to loading of the enclosure. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
-
-
35. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of sheets which are in superimposed relationship, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for feeding each of the sheets from the enclosure through the feed-out slot, the sheet feeding means including primary feed rollers and secondary feed rollers, the primary rollers feeding the sheets to the secondary rollers and being driven slower than the secondary rollers, with the primary rollers being free to roll at the speed of the sheet when the sheet is being driven by the faster secondary rollers.
-
-
36. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of sheets which are in superimposed relationship, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for engaging and feeding each of the sheets from the enclosure through the feed-out slot; and separator means in the enclosure for preventing more than one sheet from feeding through the feed-out slot at a time, the separator means comprising a roller and a screw-threaded rigid pin adjustably mounted opposite the roller to define a variable gap between the roller and the pin.
-
-
37. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of sheets which are in superimposed relationship, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for engaging and feeding each of the sheets from the enclosure through the feed-out slot; and separator means in the enclosure adjacent the feed-out slot for preventing more than one sheet from feeding through the feed-out slot at a time, the separator means comprising first and second counter rotating rollers having a gap therebetween, the first rollers engaging the sheet to be fed and urging the sheet forward, and the second roller contacting other ones of the sheets which tend to breach the gap and urging these sheets backward, with the frictional force which the second roller exerts on the sheet to be fed being less than that exerted by the first roller.
-
-
38. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of sheets which are in superimposed relationship, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for engaging and feeding each of the sheets from the enclosure through the feed-out slot; movable separator means in the enclosure adjacent the feed-out slot for preventing more than one sheet from feeding through the feed-out slot at a time; and control means for controlling opening of said movable separator means so that feeding means feeds only one sheet at a time through the feed-out slot. - View Dependent Claims (39)
-
-
40. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a stack of sheets which are in superimposed relationship, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with adjacent portions at one end of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independent of gravity, and such that an innermost sheet and each subsequent innermost sheet tend to be ejected from the stack so as to be self-feeding; and means for controlling the feeding of the sheets from the magazine one at a time. - View Dependent Claims (41)
-
-
42. A sheet feeding magazine, which comprises:
-
an enclosure including a wall having a sheet feed-out slot, the enclosure being adapted to receive a plurality of sheets which are in superimposed relationship with leading end portions of the sheets in touching engagement adjacent the feed-out slot; means in the enclosure for causing each of the sheets to feed from the enclosure through the feed-out slot; and separator means in the enclosure adjacent the feed-out for preventing more than one sheet from feeding through the feed-out slot at a time, the separator means including opposed members for defining a gap through which the sheets feed one at a time to the feed-out slot.
-
-
43. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot; means for opening and closing the enclosure; and means responsive to the opening-and-closing means for moving the sheet feeding means into and out of a sheet-feeding position.
-
-
44. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazines independently of the orientation of the magazine with respect to gravity; means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot, the sheet feeding means including roller means for engaging and feeding the curved sheets; and means for cleaning the feed roller means as the feed roller means rotates. - View Dependent Claims (45, 46, 47, 48)
-
-
49. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot, the sheet feeding means including roller means for engaging and feeding the curved sheets; a rotatable drive shaft; a floating rotatable shaft, the roller means being supported on the floating rotatable shaft; means for supporting the floating rotatable shaft for pivotable movement about the rotatable drive shaft; and means for driving the floating rotatable shaft and the roller means from the rotatable drive shaft. - View Dependent Claims (50, 51)
-
-
52. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot, the sheet feeding means including roller means for engaging and feeding the curved sheets; means for opening and closing the enclosure; and spring-biased means responsive to the opening-and-closing means for moving the feed roller means into and out of a sheet-feeding position.
-
-
53. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot, the sheet feeding means including roller means for engaging and feeding the curved sheets; and gear rack means for driving the feed roller means. - View Dependent Claims (54)
-
-
55. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; and means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot, the sheet feeding means including roller means for engaging and feeding the curved sheets and the roller means including means for engaging and penetrating a surface of each of the sheets.
-
-
56. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot, the sheet feeding means including roller means for engaging and feeding the curved sheets; and means for indicating the number of sheets remaining in the enclosure as the sheets are fed from the enclosure by the sheet feeding means. - View Dependent Claims (57, 58, 59)
-
-
60. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; and means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot, the sheet feeding means including primary feed rollers and secondary feed rollers, the primary rollers feeding the sheets to the secondary rollers and being driven slower than the secondary rollers, with the primary rollers being free to roll at the speed of the sheet when the sheet is driven by the faster secondary rollers.
-
-
61. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheet and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; and means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot, the sheet feeding means including a feed roller means and at least one one-way clutch for operating the feed roller means, and further including means for operating the one-way clutch independently of an associated device upon which the magazine is mounted.
-
-
62. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot; means for moving the sheet feeding means into and out of a sheet-engaging feeding position for the feeding of each sheet; and means for continuously driving the sheet feeding means.
-
-
63. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot; and sheet separator means including a roller and a screw-threaded rigid pin adjustably mounted opposite the roller to define a variable gap between the roller and the pin.
-
-
64. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot; and sheet separator means including first and second counter rotating rollers having a gap therebetween, the first rollers engaging the sheet to be fed and urging the sheet forward, and the second roller contacting other ones of the sheets which tend to breach the gap and urging these sheets backward, with the frictional force which the second roller exerts on the sheet to be fed being less than that exerted by the first roller.
-
-
65. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot; and separator means adjacent the feed-out slot for preventing more than one sheet from feeding through the feed-out slot at a time, the separator means being controllably opened to feed one sheet at a time.
-
-
66. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a plurality of superimposed sheets, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with first end portions of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions of the sheets and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independently of the orientation of the magazine with respect to gravity; means in the enclosure for engaging and feeding an innermost one of the curved sheets, each subsequent innermost sheet and a last sheet from the enclosure through the feed-out slot; and means for indicating the number of sheets remaining in the enclosure as the sheets are fed from the enclosure by the sheet feeding means. - View Dependent Claims (67, 68, 69, 70, 71, 72, 73, 74)
-
-
75. A sheet feeding magazine, which comprises:
-
an enclosure adapted to receive a stack of sheets which are in superimposed relationship, the enclosure including a wall having a sheet feed-out slot; means in the enclosure for retaining at least central portions of the superimposed sheets in a curved essentially semi-circular configuration within the enclosure, with adjacent portions at one end of the sheets adjacent the feed-out slot, and with a radius of curvature of the curved portions and the length of an arc encompassed by the curved portions of the sheets being such that the sheets retain themselves in desired positions in the magazine independent of gravity, and such that an innermost sheet and each subsequent innermost sheet is self-feeding so as to be ejected from the stack without any supplemental feed mechanism; and means for controlling the feeding of the sheets from the magazine one at a time.
-
Specification