High speed recorder with centrifugal stylus feed

Claim 1

AN ELECTRICAL RECORDER HAVING IN COMBINATION A ROTATING STYLUS STRUCTURE AND A FLATTENED MOVING SHEET SENSITIVE TO THE VOLTAGE OF THE TIP OF THE STYLUS, SAID STYLUS STRUCTURE COMPRISING: AN ELONGATED ARM SAID ARM BEING PIVOTALLY MOUNTED INTERMEDIATE THE ENDS OF THE ARM, A MOTOR COUPLED TO SAID ARM FOR DRIVING SAID ARM AT A PREDETERMINED ROTARY SPEED, SAID ARM HAVING A WIRE GUIDE CHANNEL EXTENDING RADIALLY ALONG SAID ARM AND CURVED AT THE OUTER END TOWARD THE RECORDING AREAS ON SAID SHEET, WIRE STYLUS STOCK EXTENDING THROUGH SAID CHANNEL ALONG SAID CURVED OUTER END, AND INTO CONTACT WITH SAID SHEET, SAID WIRE STOCK BEING SO DISPOSED IN SAID WIRE GUIDE CHANNEL AS TO RESTRAIN LENGTHWISE MOTION THROUGH SAID CHANNEL SUBSTANTIALLY ONLY BY THE FRICTIONAL DRAG BETWEEN SAID WIRE AND CHANNEL, SAID DRAG ON SAID WIRE STOCK BEING SLIGHTLY LESS THAN THE CENTRIFUGAL FORCE ON SAID WIRE STOCK SO THAT THE END OF THE WIRE STOCK RIDES ON SAID SHEET DURING SAID PREDETERMINED ROTARY ARM SPEED.