US3671044A — Magnetic recording and playback instrument and su…

Claim 1

Independent Claim 490 words

An apparatus for the purpose of sound recording and for simultaneous playback with visual reading of rectangular magnetic cards, each comprising on their face a predetermined number of lines of printed text extending laterally over substantially the entire length and depth of the card and spaced at a constant distance from each other, and having a magnetic coating on the back, said apparatus comprising: a support plate for maintaining said card with its magnetic coating facing downwardly, said support plate having a laterally extending slot of a length greater than the length of said card; a movable frame supported on said card support plate, said frame having a central aperture defining an opening adapted to receive said card so as to engage the peripheral edges thereof, said frame further including a transparent upper portion forming a pressing means for positioning the card in said frame aperture and pressing it against the surface of said card support plate; a magnetic head positioned below said card and extending into said laterally extending slot to contact the magnetic-coated surface of said card; carriage means supporting said magnetic head; means for imparting motion to said carriage means to facilitate travel of said magnetic head along the length of said slot alternately in the reading direction of the lines of text and then in the opposite direction over the entire length of the card while being adapted to scan the parallel sound tracks on the magnetic coating of said card; means for imparting transverse movement to said card-containing frame across the card supporting plate, said means moving said frame and the card transversely upwardly for a distance of one line-spacing on said card upon said magnetic head being conveyed to one of the ends of said laterally extending slot so as to cause said magnetic head to contact the next lower sound track on said card; and a stationary transparent top strip means having a window adapted to be positioned in alignment with said laterally extending strip, said transparent strip having means for providing indication of the line of printed text on said card corresponding with the sound track in the process of being read in response to the movement of the magnetic head for each position of the card said indication meAns including a movable marker for correlating indication between said printed text of said sound track on the card; a drive means for said marker; means interconnecting said drive and the carriage of said magnetic head, said drive means including means for actuating said marker for movement always from the left edge of the card to the right edge relative to the wording thereon, irrespective of the direction of motion of the magnetic head, and wherein the distance traversed by the marker along the line of text from the left edge is always equal to the distance covered by the magnetic head along the corresponding tracks from the starting point of such track.

Claim 2

Independent Claim 490 words

An apparatus for the purpose of sound recording and for simultaneous playback with visual reading of rectangular magnetic cards, each comprising on their face a predetermined number of lines of printed text extending laterally over substantially the entire length and depth of the card and spaced at a constant distance from each other, and having a magnetic coating on the back, said apparatus comprising: a support plate for maintaining said card with its magnetic coating facing downwardly, said support plate having a laterally extending slot of a length greater than the length of said card; a movable frame supported on said card support plate, said frame having a central aperture defining an opening adapted to receive said card so as to engage the peripheral edges thereof, said frame further including a transparent upper portion forming a pressing means for positioning the card in said frame aperture and pressing it against the surface of said card support plate; a magnetic head positioned below said card and extending into said laterally extending slot to contact the magnetic-coated surface of said card; carriage means supporting said magnetic head; means for imparting motion to said carriage means to facilitate travel of said magnetic head along the length of said slot alternately in the reading direction of the lines of text and then in the opposite direction over the entire length of the card while being adapted to scan the parallel sound tracks on the magnetic coating of said card; means for imparting transverse movement to said card-containing frame across the card supporting plate, said means moving said frame and the card transversely upwardly for a distance of one line-spacing on said card upon said magnetic head being conveyed to one of the ends of said laterally extending slot so as to cause said magnetic head to contact the next lower sound track on said card; and a stationary transparent top strip means having a window adapted to be positioned in alignment with said laterally extending strip, said transparent strip having means for providing indication of the line of printed text on said card corresponding with the sound track in the process of being read in response to the movement of the magnetic head for each position of the card said indication meAns including a movable marker for correlating indication between said printed text of said sound track on the card; a drive means for said marker; means interconnecting said drive and the carriage of said magnetic head, said drive means including means for actuating said marker for movement always from the left edge of the card to the right edge relative to the wording thereon, irrespective of the direction of motion of the magnetic head, and wherein the distance traversed by the marker along the line of text from the left edge is always equal to the distance covered by the magnetic head along the corresponding tracks from the starting point of such track.

Claim 3

Dependent Claim 96 words

An apparatus as claimed in claim 1, wherein the marker is formed of two parts, said marker drive interconnection means including a thread driven by the carriage and comprising a driving side and a return side each bearing one of the said marker parts and moving parallel to said rectangular route, fixed sloping ramps being arranged on said transparent frame top portion so as to move each of said marker parts alternately inward and outward from the rectangular route according to its direction of motion whereby only one of said parts is visible at a time.

Claim 4

Dependent Claim 114 words

An apparatus as claimed in claim 2, including a spring device, said frame being adapted to be steadily pulled back in the direction of the upper edge of the card by said spring device, said spring device being manually resettable by an operator in response to gripping a handle pulling the frame toward himself and effectively toward the final lines of the text, a trigger on said spring device, the successive movements of one spacing of the frame in the opposite direction being effected by said trigger, an escapement, said trigger being responsive to said escapement actuated by the carriage each time the magnetic head closely approaches one of the ends of the slot.

Claim 5

Dependent Claim 143 words

An apparatus as claimed in claim 3, wherein said escapement comprises a sprocket wheel with staggered teeth, a shaft rigidly mounting said sprocket, said shaft carrying two pinions, two racks meshing with said pinions, said racks being located on both sides of the frame relative to the motion thereof, said sprocket including a pawl formed by the bent end of a rod extending parallel to said shaft and including two stationary lugs against which the carriage impinges, the said rod comprising flexible means pulling it back axially into a set intermediate position and a spring rotatably driving about its own axis whereby the escapement pawl is locked by the teeth of the escapement sprocket wheel against said stationary lug in the check direction and conversely releases said wheel upon the operator pulling the carriage toward himself in order to set said spring device.

Claim 6

Dependent Claim 92 words

An apparatus as claimed in claim 3, including slide bars supporting said carriage, an endless strip driven by a continuous mechanism adapted to move said carriage two sides of said strip extending parallel to the direction of motion of the carriage, a device for locking the carriage alternately on at least one side of the endless strip, said locking device including quick-trip mechanism, fixed lugs for actuating said mechanism, said lugs being adjusted whereby the reversal in direction of carriage motion is effected immediately in response to the release of said escapement.

Claim 7

Dependent Claim 93 words

An apparatus as claimed in claim 3, including slide bars supporting said carriage, an endless strap driven by a continuous mechanism for moving said carriage, two sides of said strap extending parallel to the direction of motion of the carriage, a device for locking the carriage alternately on at least one side of the endless trap, said locking device including an electromagnetic drive, a pair of lugs for actuating said electromagnetic drive through two contacts, said electromagnetic drive being adapted to operate the escapement simultaneously with the reversal in direction of carriage motion.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1975-06-20	1975-12-20	1976-06-20	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1979-06-20	1979-12-20	1980-06-20	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1983-06-20	1983-12-20	1984-06-20	$7700.00	Window Closed / Lapsed

Magnetic recording and playback instrument and support for magnetic recording

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag