Teaching machine

Claim 2

A teaching machine adapted to use interchangeable cards of electrical insulating material, wherein each card includes a Question section and a correct answer section, said question section including a plurality of questions with multiple-choice answers, one of which for each question is correct and at least one of which for each question is incorrect, each card including a hole therethrough adjacent each of the answers and start and reset holes therethrough in the question section, said machine comprising a base for supporting a card and onto which a card may be oriented, terminals on the base registering with the holes, a housing on the base receiving the answer section thereby leaving exposed the question section, said housing including a semiopaque window, light means in said housing functioning when energized to permit visual reading of the answer section through the window, a hand-held probe for entering the holes in the card to contact the terminals, and electrical circuit means connected to said terminals, probe, and light means responsive to energize the light means when contact by the probe is first made with the terminals of said start hole or the correct answer hole of each question and to prevent energization of the light means in the event contact by the probe is first made with a terminal of an incorrect answer hole until contact by the probe is next made with the terminal of the reset hole.

Claim 3

A teaching machine adapted to use interchangeable cards of electrical insulating material, wherein each card includes a Question section and a correct answer section, said question section including a plurality of questions with multiple-choice answers, one of which for each question is correct and at least one of which for each question is incorrect, each card including a hole therethrough adjacent each of the answers and start and reset holes therethrough in the question section, said machine comprising a base for supporting a card and onto which a card may be oriented, terminals on the base registering with the holes, a housing on the base receiving the answer section thereby leaving exposed the question section, said housing including a semi-opaque window, light means in said housing functioning when energized to permit visual reading of the answer section through the window, a hand-held probe for entering the holes in the card to contact the terminals, and electrical circuit means connected to said terminals, probe, and light means responsive to energize the light means when contact by the probe is first made with the terminals of said start hole or the correct answer hole of each question and to prevent energization of the light means in the event contact by the probe is first made with a terminal of an incorrect answer hole until contact by the probe is next made with the terminal of the reset hole.

Claim 4

A teaching machine adapted to use interchangeable cards of electrical insulating material, wherein each card includes a Question section and a correct answer section, said question section including a plurality of questions with multiple-choice answers, one of which for each question is correct and at least one of which for each question is incorrect, each card including a hole therethrough adjacent each of the answers and start and reset holes therethrough in the question section, said machine comprising a base for supporting a card and onto which a card may be oriented, terminals on the base registering with the holes, a housing on the base receiving the answer section thereby leaving exposed the question section, said housing including a semi-opaque window, light means in said housing functioning when energized to permit visual reading of the answer section through the window, a hand-held probe for entering the holes in the card to contact the terminals, and electrical circuit means connected to said terminals, probe, and light means responsive to energize the light means when contact by the probe is first made with the terminals of said start hole or the correct answer hole of each question and to prevent energization of the light means in the event contact by the probe is first made with a terminal of an incorrect answer hole until contact by the probe is next made with the terminal of the reset hole.

Claim 5

A teaching machine as defined in claim 1, wherein said housing further includes a second window positioned remote from a view of the answer section to merely indicate when the light means is energized during designation of a correct answer, and shield means for covering said semi-opaque window and uncovering said second window.

Claim 6

A teaching machine as defined in claim 1, wherein said terminals include correct answer terminals connected in common, incorrect answer terminals connected in common, a start terminal connected in common to said correct answer terminals, and a reset terminal, and said terminals positioned to respectively register with the correct, incorrect, start and reset holes of a card.

Claim 7

A teaching machine as defined in claim 3, wherein said circuit means includes a switching means associated with said light means, a correct circuit portion for triggering said switching means to energize the light means, an incorrect circuit portion for conditioning the switching means to prevent triggering thereof, and a reset circuit portion for conditioning the switching means to permit triggering thereof.

Claim 8

A teaching machine as defined in claim 4, wherein said probe and the terminals define switch contact means for energizing each of the circuit portions.

Claim 9

A teaching machine as defined in claim 4, wherein said switching means includes an SCR.

Claim 10

A teaching machine as defined in claim 6, wherein said incorrect circuit portion includes a capacitor which when fully charged by contact of the probe with a terminal of an incorrect answer hole prevents firing of the SCR.

Claim 11

A teaching machine as defined in claim 1, wherein correct answer terminals and incorrect answer terminals are arranged on said base to accommodate cards having the correct answer hole in different locations relative the incorrect answer holes.

Claim 12

A teaching machine adapted to use interchangeable cards of electrical insulating material, wherein each card includes a question section and a correct answer section, said question section including a plurality of questions with multiple-choice answers, one of which for each question is correct and at least one of which for each question is incorrect, each card including a hole therethrough adjacent each of the answers and start and reset holes therethrough in the question section, said machine comprising a base in the form of a generally flat plate having a question area and a correct answer area, a housing over the correct answer area including a semi-opaque window which allows viewing the answer area upon illumination of same, an illumination source within said housing, a plurality of sets of question answer terminals on said question area of the baSe some of which register with the answer holes of the card, said question answer terminals including correct and incorrect answer terminals, start and reset terminals on said question area registering with the start and reset holes of the card, said start terminal being connected in common to said correct answer terminals, and electric circuit means connected to said terminals, probe and illumination source, said circuit means including a switching means that is triggered ''''on'''' when contact by the probe is first made with either the start terminal or a correct terminal and that is prevented from being triggered on by such contact if contact is first made with an incorrect terminal until contact is next made with the reset terminal.

Claim 13

A teaching machine adapted to use interchangeable cards of electrical insulating material, wherein each card includes a question section and a correct answer section, said question section including a plurality of questions with multiple-choice answers, one of which for each question is correct and at least one of which for each question is incorrect, each card including a hole therethrough adjacent each of the answers and start and reset holes therethrough in the question section, said machine comprising a base in the form of a generally flat plate having a question area and a correct answer area, a housing over the correct answer area including a semi-opaque window which allows viewing the answer area upon illumination of same, an illumination source within said housing, a plurality of sets of question answer terminals on said question area of the baSe some of which register with the answer holes of the card, said question answer terminals including correct and incorrect answer terminals, start and reset terminals on said question area registering with the start and reset holes of the card, said start terminal being connected in common to said correct answer terminals, and electric circuit means connected to said terminals, probe and illumination source, said circuit means including a switching means that is triggered ''''on'''' when contact by the probe is first made with either the start terminal or a correct terminal and that is prevented from being triggered on by such contact if contact is first made with an incorrect terminal until contact is next made with the reset terminal.

Claim 14

A teaching machine as defined in claim 9, and means on the base coacting with means on the card for orienting the card to provide proper registry between the holes in the card and the terminals on the base.

Claim 15

A teaching machine as defined in claim 10, and shutter means for selectively covering said semi-opaque window to prevent viewing of the answer section of a card upon choosing a correct answer to a question.

Claim 16

A teaching machine as defined in claim 11, and window means for signaling to the operator a correct answer choice when the shutter means covers the semi-opaque window.

Claim 17

A teaching machine adapted to use interchangeable cards of electrical insulating material, wherein each card includes a question section and a correct answer section, said question section including a plurality of questions with multiple-choice answers, one of which for each question is correct and at least one of which for each question is incorrect, each card including a hole therethrough adjacent each of the answers and a start hole therethrough, said machine comprising a base for supporting a card and onto which a card may be oriented, terminals on the base registering with the holes, a housing on the base defining a compartment receiving the answer section thereby leaving exposed the question section, said housing including a semi-opaque window, light means in said compartment functioning when energized to permit visual reading of the answer section through the window, a hand-held probe for entering the holes in the card to contact the terminals, and electrical circuit means connected to said terminals, probe, and light means responsive to energize the light means when contact by the probe is made with the terminals of said start hole or the correct answer hole of each question to illuminate the compartment and render the answer section readable through the semi-opaque window.

Claim 18

A teaching machine adapted to use interchangeable cards of electrical insulating material, wherein each card includes a question section and a correct answer section, said question section including a plurality of questions with multiple-choice answers, one of which for each question is correct and at least one of which for each question is incorrect, each card including a hole therethrough adjacent each of the answers and a start hole therethrough, said machine comprising a base for supporting a card and onto which a card may be oriented, terminals on the base registering with the holes, a housing on the base defining a compartment receiving the answer section thereby leaving exposed the question section, said housing including a semi-opaque window, light means in said compartment functioning when energized to permit visual reading of the answer section through the window, a hand-held probe for entering the holes in the card to contact the terminals, and electrical circuit means connected to said terminals, probe, and light means responsive to energize the light means when contact by the probe is made with the terminals of said start hole or the correct answer hole of each question to illuminate the compartment and render the answer section readable through the semi-opaque window.

Claim 19

A teaching machine as defined in claim 13, and means on the base coacting with means on the card for orienting the card to provide proper registry between the holes in the card and the terminals on the base.

Claim 20

A teaching machine as defined in claim 14, and shutter means for selectively covering said semi-opaque window to prevent viewing of the answer section of a card upon choosing a correct answer to a question.

Claim 21

A teaching machine as defined in claim 13, wherein said circuit means includes means preventing energization of the light means in the event contact by the probe is first made with a terminal of an incorrect answer.

Claim 22

A teaching machine as defined in claim 16, wherein said circuit means includes a reset terminal on said base, and each card including a reset hole in the question section, whereby following the contact of the reset terminal by the probe further contact by the probe of a correct answer terminal will energize the light means.