Microfilm reader

Claim 2

a blocking member pivotally mounted on said housing and having a retaining portion shaped to fit said compartment recesses, a camming projection located for contact by said film gate and a wedge-shaped projection located for movement between and away from said holding plates; and

Claim 3

a blocking member movably mounted on said apparatus, said blocking member having i. a gate opening portion located for movement between and away from said holding members of said gate; and ii. a camming portion located for actuation by said gate, and

Claim 4

a blocking member movably mounted on said apparatus, said blocking member having i. a gate opening portion located for movement between and away from said holding members of said gate; and ii. a camming portion located for actuation by said gate, and

Claim 5

a blocking member movably mounted on said apparatus, said blocking member having i. a retaining portion adapted to engage one of said compartment detent means of a supported magazine; and ii. a camming portion located for actuation by said gate; and

Claim 6

a blocking member movably mounted on said apparatus, said blocking member having i. a retaining portion adapted to engage one of said compartment detent means of a supported magazine; and ii. a camming portion located for actuation by said gate; and

Claim 7

a blocking member movably mounted on said apparatus, said blocking member having i. a retaining portion adapted to engage one of said compartment detent means of a supported magazine; ii. a camming portion located for actuation by said gate, and iii. a gate opening portion located for movement between and away from said holding members; and

Claim 8

a blocking member movably mounted on said apparatus, said blocking member having i. a retaining portion adapted to engage one of said compartment detent means of a supported magazine; ii. a camming portion located for actuation by said gate, and iii. a gate opening portion located for movement between and away from said holding members; and

Claim 9

Apparatus for projecting information carried by information carriers stored in a compartmented magazine having locating detents individually associated with each compartment, said apparatus comprising: a. a gate including a pair of openable information carrier holding members which are biased to a closed position for holding the information carrier therebetween; b. a projection station at which an information carrier is located for projection of information therefrom wherein the holding members of said gate are in a closed position; c. a loading station at which the gate is located to receive an information carrier from a magazine wherein the holding members of said gate are in an open position to receive the carrier; d. means for mounting said gate for movement between said projection station and said loading station; e. control means for opening said holding members and allowing indexing of a supported magazine in response to movement of said gate to said loading station and for allowing said holding members to close and preventing movement of a supported magazine in response to movement of said gate away from said loading station, said control means including:

Claim 10

Apparatus for projecting information carried by information carriers stored in a compartmented magazine having locating detents individually associated with each compartment, said apparatus comprising: a. a gate including a pair of openable information carrier holding members which are biased to a closed position for holding the information carrier therebetween; b. a projection station at which an information carrier is located for projection of information therefrom wherein the holding members of said gate are in a closed position; c. a loading station at which the gate is located to receive an information carrier from a magazine wherein the holding members of said gate are in an open position to receive the carrier; d. means for mounting said gate for movement between said projection station and said loading station; e. control means for opening said holding members and allowing indexing of a supported magazine in response to movement of said gate to said loading station and for allowing said holding members to close and preventing movement of a supported magazine in response to movement of said gate away from said loading station, said control means including:

Claim 11

Apparatus for projecting information carried by information carriers stored in a compartmented magazine having locating detents individually associated with each compartment, said apparatus comprising: a. a gate including a pair of openable information carrier holding members which are biased to a closed position for holding the information carrier therebetween; b. a projection station at which an information carrier is located for projection of information therefrom wherein the holding members of said gate are in a closed position; c. a loading station at which the gate is located to receive an information carrier from a magazine wherein the holding members of said gate are in an open position to receive the carrier; d. means for mounting said gate for movement between said projection station and said loading station; e. control means for opening said holding members and allowing indexing of a supported magazine in response to movement of said gate to said loading station and for allowing said holding members to close and preventing movement of a supported magazine in response to movement of said gate away from said loading station, said control means including: 1. a blocking member movably mounted on said apparatus, said blocking member having i. a retaining portion adapted to engage one of said compartment detent means of a supported magazine; ii. a camming portion located for actuation by said gate, and iii. a gate opening portion located for movement between and away from said holding members; and 2. biasing means cooperably associated with said blocking member for urging said retaining portion thereof into locking engagement with one of said compartment detent means of a supported magazine, said retaining portion being movable out of engagement with said compartment detent means by movement of said gate into said loading station to thereby actuate said camming portion, said gate opening means being synchronously movable, by such gate movement, between said holding members to cause separation thereof.

Claim 12

Apparatus for projecting information carried by information carriers stored in a compartmented magazine having locating detents individually associated with each compartment, said apparatus comprising: a. a gate including a pair of openable information carrier holding members which are biased to a closed position for holding the information carrier therebetween; b. a projection station at which an information carrier is located for projection of information therefrom wherein the holding members of said gate are in a closed position; c. a loading station at which the gate is located to receive an information carrier from a magazine wherein the holding members of said gate are in an open position to receive the carrier; d. means for mounting said gate for movement between said projection station and said loading station; e. control means for opening said holding members and allowing indexing of a supported magazine in response to movement of said gate to said loading station and for allowing said holding members to close and preventing movement of a supported magazine in response to movement of said gate away from said loading station, said control means including: 1. a blocking member movably mounted on said apparatus, said blocking member having i. a retaining portion adapted to engage one of said compartment detent means of a supported magazine; ii. a camming portion located for actuation by said gate, and iii. a gate opening portion located for movement between and away from said holding members; and 2. biasing means cooperably associated with said blocking member for urging said retaining portion thereof into locking engagement with one of said compartment detent means of a supported magazine, said retaining portion being movable out of engagement with said compartment detent means by movement of said gate into said loading station to thereby actuate said camming portion, said gate opening means being synchronously movable, by such gate movement, between said holding members to cause separation thereof.

Claim 13

Apparatus for projecting information carried by information carriers stored in a compartmented magazine having locating detents individually associated with each compartment, said apparatus comprising: a. a gate including a pair of openable information carrier holding members which are biased to a closed position for holding the information carrier therebetween; b. a projection station at which an information carrier is located for projection of information therefrom wherein the holding members of said gate are in a closed position; c. a loading station at which the gate is located to receive an information carrier from a magazine wherein the holding members of said gate are in an open position to receive the carrier; d. means for mounting said gate for movement between said projection station and said loading station; e. control means for allowing indexing of a supported magazine in response to movement of said gate to said loading station and for preventing movement of a supported magazine in response to movement of said gate away from said loading station, said control means iNcluding:

Claim 14

Apparatus for projecting information carried by information carriers stored in a compartmented magazine having locating detents individually associated with each compartment, said apparatus comprising: a. a gate including a pair of openable information carrier holding members which are biased to a closed position for holding the information carrier therebetween; b. a projection station at which an information carrier is located for projection of information therefrom wherein the holding members of said gate are in a closed position; c. a loading station at which the gate is located to receive an information carrier from a magazine wherein the holding members of said gate are in an open position to receive the carrier; d. means for mounting said gate for movement between said projection station and said loading station; e. control means for allowing indexing of a supported magazine in response to movement of said gate to said loading station and for preventing movement of a supported magazine in response to movement of said gate away from said loading station, said control means iNcluding:

Claim 15

biasing means cooperably associated with said blocking member for urging said retaining portion thereof into locking engagement with one of said compartment detent means of a supported magazine, said retaining portion being movable out of engagement with said compartment detent means by movement of said gate into said loading station to thereby actuate said camming portion, said gate opening means being synchronously movable, by such gate movement, between said holding members to cause separation thereof.

Claim 16

biasing means cooperably associated with said blocking member for urging said retaining portion thereof into locking engagement with one of said compartment detent means of a supported magazine, said retaining portion being movable out of engagement with said compartment detent means by movement of said gate into said loading station to thereby actuate said camming portion, said gate opening means being synchronously movable, by such gate movement, between said holding members to cause separation thereof.

Claim 17

biasing means cooperably associated with said blocking member for urging said gate opening portion away from said holding members, said gate opening portion being movable between said holding members to cause separation thereof by movement of said gate into said loading station to thereby actuate said camming portion.

Claim 18

biasing means cooperably associated with said blocking member for urging said gate opening portion away from said holding members, said gate opening portion being movable between said holding members to cause separation thereof by movement of said gate into said loading station to thereby actuate said camming portion.

Claim 19

biasing means cooperably associated with said blocking member for urging said retaining portion thereof into locking engagement with one of said compartment detent means of a supported magazine, said retaining portion being movable out of engagement with said compartment detent means by movement of said gate into said loading station to thereby actuate said camming portion.

Claim 20

biasing means cooperably associated with said blocking member for urging said retaining portion thereof into locking engagement with one of said compartment detent means of a supported magazine, said retaining portion being movable out of engagement with said compartment detent means by movement of said gate into said loading station to thereby actuate said camming portion.

Claim 21

biasing means cooperably associated with said blocking member for urging said retaining portion thereof into locking engagement with a selected one of said compartment recesses, said retaining portion being movable out of engagement with said selected recess by movement of said film gate to said loading position and against said camming projection, said wedge-shaped projection being synchronously movable by such film gate movement between said holding plates to cause separation thereof.

Claim 22

biasing means cooperably associated with said blocking member for urging said retaining portion thereof into locking engagement with a selected one of said compartment recesses, said retaining portion being movable out of engagement with said selected recess by movement of said film gate to said loading position and against said camming projection, said wedge-shaped projection being synchronously movable by such film gate movement between said holding plates to cause separation thereof.

Claim 23

Apparatus for projecting information carried by information carriers stored in a compartmented magazine having locating detents individually associated with each compartment, said apparatus comprising: a. a gate including a pair of openable information carrier holding members which are biased to a closed position for holding the information carrier therebetween; b. a projection station at which an information carrier is located for projection of information therefrom wherein the holding members of said gate are in a closed position; c. a loading station at which the gate is located to receive an information carrier from a magazine wherein the holding members of said gate are in an open position to receive the carrier; d. means for mounting said gate for movement between said projection station and said loading station; e. control means for opening said holding members in response to movement of said gate to said loading station and for allowing said holding members to close in response to movement of said gate away from said loading station, said control means including:

Claim 24

Apparatus for projecting information carried by information carriers stored in a compartmented magazine having locating detents individually associated with each compartment, said apparatus comprising: a. a gate including a pair of openable information carrier holding members which are biased to a closed position for holding the information carrier therebetween; b. a projection station at which an information carrier is located for projection of information therefrom wherein the holding members of said gate are in a closed position; c. a loading station at which the gate is located to receive an information carrier from a magazine wherein the holding members of said gate are in an open position to receive the carrier; d. means for mounting said gate for movement between said projection station and said loading station; e. control means for opening said holding members in response to movement of said gate to said loading station and for allowing said holding members to close in response to movement of said gate away from said loading station, said control means including:

Claim 25

In a microfilm reader of the type having a film gate which includes a pair of openable information carrier holding plates biased to a closed position, said film gate being movably mounted in said reader for movement between a projection position and a loading position, and which reader is adapted to receive and movably support a magazine having a plurality of information carrier compartments and further having an indexing recess for each compartment, the improvement comprising control means, mounted on said reader, for opening said holding plates and allowing indexing of a supported magazine in response to movement of said film gate to said loading position and for allowing said holding plates to close and preventing movement of a supported magazine in response to movement of said film gate away from said loading position wherein said control means comprises: a. a blocking member pivotally mounted on said reader and having a retaining portion shaped to fit the compartment recesses, a camming projection located for contact by said film gate and a wedge-shaped projection located for movement between and away from said holding plates; and b. biasing means cooperably associated with said blocking member for urging said retaining portion thereof into locking engagement with a compartment recess of a magazine mounted in said reader, said retaining portion being movable out of engagement with a mounted magazine recess by movement of said film gate into said loading position and against said camming projection, said wedge-shaped projection being synchronously movable, by such film gate movement, between said hoLding plates to cause separation thereof.

Claim 26

In a microfilm reader of the type having a film gate which includes a pair of openable information carrier holding plates biased to a closed position, said film gate being movably mounted in said reader for movement between a projection position and a loading position, and which reader is adapted to receive and movably support a magazine having a plurality of information carrier compartments and further having an indexing recess for each compartment, the improvement comprising control means, mounted on said reader, for opening said holding plates and allowing indexing of a supported magazine in response to movement of said film gate to said loading position and for allowing said holding plates to close and preventing movement of a supported magazine in response to movement of said film gate away from said loading position wherein said control means comprises: a. a blocking member pivotally mounted on said reader and having a retaining portion shaped to fit the compartment recesses, a camming projection located for contact by said film gate and a wedge-shaped projection located for movement between and away from said holding plates; and b. biasing means cooperably associated with said blocking member for urging said retaining portion thereof into locking engagement with a compartment recess of a magazine mounted in said reader, said retaining portion being movable out of engagement with a mounted magazine recess by movement of said film gate into said loading position and against said camming projection, said wedge-shaped projection being synchronously movable, by such film gate movement, between said hoLding plates to cause separation thereof.

Claim 27

The microfilm reader according to claim 4 which further includes drive means for selectively indexing the compartments of a mounted magazine into and out of alignment with said holding plates.

Claim 28

In a microfilm reader of the type adapted to receive and movably support for indexing a magazine having a plurality of information carrier compartments and having an indexing recess for each compartment and which reader includes a film gate adapted to support an information carrier and is mounted for movement in said reader between a projection position and a loading position, the improvement comprising control means mounted on said reader for preventing in response to movement of said film gate away from said loading position indexing movement of a mounted magazine wherein said control means comprises: a. a blocking member pivotally mounted on said reader and having a retaining portion shaped to fit the compartment recesses and a camming projection located for contact by said film gate; and b. biasing means cooperably associated with said blocking member for urging said retaining portion thereof into locking engagement with a compartment recess when said magazine is mounted in said reader, said retaining portion being movable out of engagement with the recess by movement of said film gate into said loading position and against said camming projection.

Claim 29

In a microfilm reader of the type adapted to receive and movably support for indexing a magazine having a plurality of information carrier compartments and having an indexing recess for each compartment and which reader includes a film gate adapted to support an information carrier and is mounted for movement in said reader between a projection position and a loading position, the improvement comprising control means mounted on said reader for preventing in response to movement of said film gate away from said loading position indexing movement of a mounted magazine wherein said control means comprises: a. a blocking member pivotally mounted on said reader and having a retaining portion shaped to fit the compartment recesses and a camming projection located for contact by said film gate; and b. biasing means cooperably associated with said blocking member for urging said retaining portion thereof into locking engagement with a compartment recess when said magazine is mounted in said reader, said retaining portion being movable out of engagement with the recess by movement of said film gate into said loading position and against said camming projection.

Claim 30

The microfilm reader according to claim 6 which further includes drive means for selectively indexing the compartments of a mounted magazine into and out of alignment with said holding plates.

Claim 31

In a microfilm reader of the type having a film gate movably mounted thereon for movement between a projection position and a loading position adjacent a source of information carriers and including a pair of operable information carrier holding plates biased to a closed position mounted on said film gate, the improvement comprising control means, mounted on said reader and actuated by contact of said film gate therewith when said film gate is moved to said loading position, for spacing apart said holding plates to receive an information carrier therebetween and for allowing said holding plates to close about an information carrier when said film gate is moved away from said loading position wherein said control means comprises: a. a blocking member pivotally mounted on said reader having a camming projection located for contact by said film gate and a wedge-shaped projection located for movement between and away from said holding plates; and b. biasing means cooperably associated with said blocking member for urging said wedge-shaped projection away from between said plates.

Claim 32

In a microfilm reader of the type having a film gate movably mounted thereon for movement between a projection position and a loading position adjacent a source of information carriers and including a pair of operable information carrier holding plates biased to a closed position mounted on said film gate, the improvement comprising control means, mounted on said reader and actuated by contact of said film gate therewith when said film gate is moved to said loading position, for spacing apart said holding plates to receive an information carrier therebetween and for allowing said holding plates to close about an information carrier when said film gate is moved away from said loading position wherein said control means comprises: a. a blocking member pivotally mounted on said reader having a camming projection located for contact by said film gate and a wedge-shaped projection located for movement between and away from said holding plates; and b. biasing means cooperably associated with said blocking member for urging said wedge-shaped projection away from between said plates.

Claim 33

A microfilm reader which comprises: a housing; b. a magazine movably mounted on said housing, said magazine having a plurality of compartments, each compartment adapted to removably accommodate an information carrier therein and each having a recess associated therewith; c. a film gate movably mounted in said housing for movement between a projection position and a loading position and including a pair of openable information carrier holding plates biased to a closed position mounted thereon; and d. control means mounted on said reader for spacing apart said holding plates to receive an information carrier therebetween and for allowing indexing of said magazine in response to movement of said film gate to said loading position and for allowing said holding plates to close about an information carrier and for cooperating with said compartment recesses to maintain said magazine and the compartment from which an information carrier is extracted in alignment with said holding plates in response to movement of said film gate away from said loading position wherein said control means comprises:

Claim 34

A microfilm reader which comprises: a housing; b. a magazine movably mounted on said housing, said magazine having a plurality of compartments, each compartment adapted to removably accommodate an information carrier therein and each having a recess associated therewith; c. a film gate movably mounted in said housing for movement between a projection position and a loading position and including a pair of openable information carrier holding plates biased to a closed position mounted thereon; and d. control means mounted on said reader for spacing apart said holding plates to receive an information carrier therebetween and for allowing indexing of said magazine in response to movement of said film gate to said loading position and for allowing said holding plates to close about an information carrier and for cooperating with said compartment recesses to maintain said magazine and the compartment from which an information carrier is extracted in alignment with said holding plates in response to movement of said film gate away from said loading position wherein said control means comprises: