US911491A - Repeating mechanism for phonographs. - Google Patents

Description

E. GILBERT, AN INSANE PERSON. I. n. GILBERT, GUARDIAN. REPEATING MEUHANISM FOR PHONOGRAPHS. 91 APPLICATION rum) NOV.1H, 1904. Patented F 1 2 1909 2 BHEETSBHBET 1.

will Q 9 E. GILBERT, AN INSANE PERSON. u. n. GILBERT, GUARDIAN. REPEATING MEGHANISM FOR PHONOGRAPHS. 91 APPLICATION FILED HOV.18, 1904.

2 SHEETS-SHEET 2.

Patented Feb. 2, 1909.

UNITED STATES PATENT OFFICE.

ELAM GILBERT, OF ORTLAND, OREGON; MATTI-E GILBERT, GUARDIAN OF SA-ID ELAM GILBERT, AN INSANE PERSON, KLINGMAN, OF NEW YORK, N. Y.

ASSIGNOR. BY MESNE ASSIGNMENTS, T0 ALBERT A.

Specification o2 Letten Patent.

Patented Feb. '9, 1909.

Application filed November 18, 190. Serial H0. 288,321.

To all whom it may concern:

Be it known that I, ELAM GILBERT, a citizen of the United States, residing at Portland, in the county of Multnomah, State of Or on, have invented certain new and useful mprovements in Repeating Mechanism for Phonographs; and I do hereby declare the following to be a full, clear, and exact description of the same.

This invention relates to improvements in repeating mechanism for phonographs, the novel features of which will be apparent from the detailed descri tion thereof hereinafter contained and the ereto appended claims.

To com rehend the invention reference should be ad to the accompanying drawingis wherein i re 1 is a top plan view ofa phono- P with the diaphragm or reproducer cad removed, the position of the reproducing stylus being illustrated and likewise the means for raising the same clear of the record Fig. 2 is a front view in elevation of the mechanism disclosed by Fig. 1 of the drawings, in said view the diaphragm 0r reproducer head being illustrated in position with a portion of a horn applied thereto; Fig. 3 is a rear view in elevation of the parts disclosed b Fig. 2 of the drawings, the sleeve on whic the traveler works being partly broken and an arm connecting the reproducer head or diaphragm to the traveler being also broken. Fig. 4 is an irregular cross sectional end view in elevation, taken on the line :t-a: Fig. 1 of the drawings, and viewed inthe direction of thearrow on the dotted line thereof. Fig. 5 is a similar ,View taken on the line y-y and viewed in the direction of the arrow, crossing said line, the parts being illustrated in the position assumed thereby when raised to lift the reproducing stylus clear of the record, in said view the position of the diaphragm or reproducer head is understood to be on the end of its outward movement; Fig. 6 is a similar view to that of Figs. 4 and 5 taken on the cross sectional line z--z Fig. 1 of thedrawings, the reproducer head or diaphragm being illustrated in its returned position and the reproducin stylus thereof raised clear .of the record, said view illustrating the parts just prior to the lows .of the needle to place same onto the reco a d Fig. is a detail broken front yiew an evatron' disclosiug the position of the oscillator when raised its full upward distance and the positionof the catch lever when swung inwardly to lock the arm which carries the spring over to actuate the repro ducin stylus for olding same clear ol' the rec'or' during the return movement of the diaphragm or reproducer head.

The numeral 1 is .u'sed'to indicate the bed.

of an ordinary Edison Home Phonograph within bearings 2 of which works the worm feed shaft 3. The projecting end 4, of this shaft, carries the record cylinder 5, onto which slips the record 6, to be reproduced. The said worm feed shaft 3 is driven from the operating mechanism, located within the casing or housing 7, by means of the drive belt 8, which works over the belt pulley 9, attachedto the shaft 3. At the rear of the bed 1 is arranged a slotted sleeve 10, which is held between the suporting standards 10, u wardly pro'ect' From said had. Within t esleeve'is ocat dfi the return worm shaft 11, which shaft is driven from the feed worm shaft 3 by means of the belt 12, which works over the pulle s 13-13 mounted respectively on the sha s 3 and '11. On the sleeve 10 is longitudinally movable the traveler 14 from one end of which projlefits the laterally extendin curved arm 14' is arm ciirlfies the dies ragm or reproducer head 5, which hea 'is'f rovided with the usual sound box, and has rovision for the reception of horn 15". he said diaphragm or re reducer head is supported at its free and means of the 'de' fending roll 16,wl ich 11o rideson the ftrackway 16 of the bed I. t e under iace of the said diaphragm ,or gepro ucer head is hinged the reproducing stylus 17, which works or travels within the grooves of the record 6, during the re reduction or playin of-the said record.

he reproducer hen. I5is caused to traverse the length of the record by meansof the threaded feed nut 18, which nut engages with the threads of the worm feed shaft 3. Thisnut is held secured to the outer end of and held osition by meanspf the, spring arm 18, said the end of the traveler 14 opposite to that from which [springs the curved supporting arm 14.

Immediately above the spring arm 18,

the'reljs located a spring arm 19. The ro arm projecting laterally from ward end of this arm is provided with a downwardly extending hooked extension 19, which, as the arm 19 is raised, engages the under face of the projecting end of the arm 18, in order to lift the feed nut 18 clear or out of engagement with the threads of the worm feed shaft 3. Said plate or arm 19, at its inner end, is attached to a rockshaft 20, working within a block 20, attached to the traveler 14, in advance of the spring arm 18. From this block 20, project laterally an arm 21, to the free end of which is pivoted a longitudinally movable catch lever 22, which, when the arm 19 is lifted, swin s beneath the outer end of said arm and he ds the same in its lifted position to maintain the feed nut 18 clear of or out of en agement with the worm feed shaft 3.

10 the oscillatory or rock-shaft 20 a depending finger 23 is secured, the lower end 23' of which is curved so as to enter within the slotted portion 24 of the sleeve 10, and engage the thread 24 of the worm shaft 11 when the spring arm 19 is raised. This finger is thrown into and out of engagement with the worm shaft 11 with the raising and lowerin of the said spring arm 19.

The t ireads 24, of the worm shaft 11, are at a pitch the op osite to that of the feed worm shaft 3, so t at when the finger 23 is in engagement therewith, a reverse movement or travel is imparted the traveler 14, than when the feed nut 18 is in engagement with the threads of the said wormr'eed shaft 3.

To the inner end portion of the worm feed shaft 3, there is secured a cam collar 25, which, as the reproducer head approaches the end of the record 6, is engaged by an oscillator 25', hinged to and depending from the arm 19. As this oscillator rides onto the surface of the cam'collar 25, during the rotation of the worm feed shaft, the same is graduall raised by the inclination of the cam col ar, lifting therewith the arm 19, which in turn raises the outer end of the arm 18, until the same iscarried above the notched portion 25 of the catch lever 22, when the said catch lever, by its own weight, swings beneath the end of the arm 19 and holds the same in its raised osition. At the same time, the nose 23' of t e depending finger 23, by the movement of the rock shaft 20, with the raising of the arm 19, is moved into engagement with the thread of the driven worm shaft 11, which causes the traveler 14, with its reproducer head and connected arts, to move in an opposite direction to t at imparted thereto by the feed nut 18 engagingwith the feed worm shaft 3,

in other words reversethemovement of the traveler and return. the reproducer head to its starting point.

To the arm 19 there is attached a forwardly extending springrod or lever 26, the free end of which is l'mely connected to the tail extension 26, of the hinged counterbalance weight that carries the reproducing stylus 17.

The rod or lever is raised with the uplifting of the arm 19 as the oscillator 25 rides onto the cam collar 25, which throws the hinged reproducing stylus 17 so as to raise its point clear of the grooves of the record 6. It will be understood that this takes place just prior to the finger 23 being moved into engagement with the return worm shaft 1.1.

The position of the reproducer head is not disturbed during the return movement thereof to repeat the record, inasmuch as the reproducing stylus itself is raised clear of the grooves of the record without the uplifting or swinging upward of the reproducer head.

The arm 19 is held in its raised position, to hold the reproducing stylus clear of the surface of the record, until the reproducer has 85 been returned to its starting position, when the same is released, the finger 23 thrown out of engagement with the return worm shaft 11, the reproducing stylus lowered onto the record 6 and the feed nut 18 placed. into engagement with the feed worm shaft 3, by means of the trip stop 27. The lower end of the catch lever 22 bears against this trip stop 27, as the traveler 14 approaches its limit of inward travel, and the said lever is gradually forced outward, until its notched shoulder portion is moved from beneath the arm 19, which permits the said arm to drop and throws the finger 23 out of engagement with the worm shaft 11. The reproducer mechanism is then positioned to reproduce the record to be played.

Having thus described the invention, what is claimed as new and desired to be protected by Letters Patent is 1. In a phonograph or similar sound producing machines, thecombination with the reproducer head, of mechanism for automatically returning the same to its starting position after the completion of the record, means associated with said mechanism for holding the reproducing stylus clear of the record without the position of the reproducer head being disturbed for the purpose of restoring the same to its said starting position, and devices for automatically releasing the reproducing stylus holding means when the said reproducer head has been returned.

2. In combination with mechanism for returning the reproducer head of a phonograph to its starting position for the repeating of the record, of means associated therewith for raising the reproducing st lus clear of the record without disturbing .t e positionof the reproducer head and holding thesame so raised until the reproducer head has been restored to its starting position. a

3. The combination with the reproducer, head of a phonograph or similar sound reproducing machines of mechanism for mor 430 mg the same forward and backward over the record to be reproduced, and means for raising the reproducing stylus clear of the record and holding the same so raised during the return movement of the reproducer head, said means raising the reproducing stylus with- 1gut ilisturbing the position of the reproducer ear 4. In a phonograph or similar sound reproducing machines, the combination with the reproducer head, or' meehanism for moving the same forward over the record to be reproduced, of means for imparting a reverse movement thereto upon the completion of the record for restoring the said head to its starting position, of devices actuated by said means for raising the reproducing stylus clear of the record without disturbing the position of the reproducer head and holdng the reproducing stylus so raised while the head is being returned, and means for releasing the reproducing stylus to place the same onto the record when the head has been returned to its starting position and disconnecting the means for so returning the said head. i

5. The combination with means for returning the reproducer head to its original starting position tor repeating of a record, of means for automatically raising the reproducing stylus clear oi the record without lifting the said reproducer head and holding the reproducing stylus in its raised position during the return movement of the reproducer head, and devices for automatically releasing the holding means to lower the reproducing stylus onto the record to be reproduced upon the reproducer head being restored to its starting position.

6. In a repeating mechanism for phonographs or similar sound reproducing ma chines, the combination with the diaphragm or reproducer head, of mechanism for returning the same to its starting position without disturbing the position thereof, of means aetuated by the driving mechanism for automatically engaging with the returning mechanism, of devices for raising the reproducing stylus and holding the same clear of the rec- 0rd during the return movement of the diaphragm or reproduoer head, and releasing means for disengaging the connecting means between the drive mechanism and the return mechanism when the diaphragm or reproducer head has been returned to its starting position and lowering the reproducing stylus to place the same onto the record.

7. In a phonograph or similar sound reroducing machines, the combination with a eed shaft, having a record cylinder, actuated thereby, of a cam. collar secured to the shaft, a longitudinally movable traveler which carries the diaphragm or reproducer head, means actuated by the feed shaft for moving the traveler outwardly, an oscillator carried thereby which engages the cam collar to raise said means out of engagement with the feed shaft when the traveler has moved its full outward distance Without disturbing the position of the diaphragm or reproducer head, of mechanism actuated by the feed shaft to restore the diaphragm or reproducer head carried by the traveler to its starting point, and devices for holding the reproducmg stylus raised and clear of the record during such return movement.

8. In ,a phonograph or similar sound re producing machines, the combination with the feed mechanism, of a traveler actuated thereby to move the dia hragm or reproducer head outwardly, mec anism for returning the diaphragm or reproducer-head to its starting position after its outward movement, means for automatically engaging said return mechanism to move the diaphragm or reproducer head inward Without raisin or lifting the same from its position, and a ifting device actuated by said means to lift the reproducing stylus clear of the record and hold the sameso raised during the return movement of the diaphragm or reproducer head.

In witness whereof I have hereunto set my hand.

ELAM GILBERT. In the presence of- N. A. ACKER, D. B. Rromnns.

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