US936273A - Feeding mechanism for phonographs. - Google Patents

Description

J?. P. QTT. v NG MEGHNISM FOB PHDNOGBAF-HS- 2 SHEETS-SHEET 2.

l mim APPLIOATION FILED JAEN, 1903.

UNITED STATES PATNT Ormea.

JOHN' E. oTT, or ORANGE, NEW JERSEY, Ass'iiton `To N 'Evf JEn's'E'Y' PATENT COMPANY, 0E WEST ORANGE, NEW JERSEY, A CORPORATION 0E NEW. JERSEY.

EEEDING MECHANISM' Foa' P'HoNoeaAPHs.

Specification of Letters Patent.

Patented Oct. 5, 1909.

To all whom it ,may concern: Be it known that I, JOHN F. OTT,- a c1t1- Zen of the United States, and a resident of .O1-ange, county of Essex, and State of New v able feed may beimparted to the carriage,

a different ever, the nut is permitted to riage will be fed at a whereby the instruments may b e employed for the reproduction of records, for example, of the present standard pitch of one hundred threads per inch, as Well as records of pitch, say, two hundred threads per inch.

Broadly considered, the invention relates to feed devices for the pur ose of the type disclosed in application of llierman Wolke, filed September 12, 1907, Serial No.'392,480, wherein a traveling nut capable of being locked against rotatlon engages the ordinary feed screw, whereby-the nut when so locked, will be fed in the ordinary way to provide for a movement of the carriage corresponding to the pitch'of said screw. When, howrotate and engagement is effected between a part rotated by said nut and a stationary abutment, a differential action takes laceand the cariiferent speed, the rate thereof depending u on the proportion and ratio of the coperating elements. The particular feed device shown in said application is illustrated in connection, and was designed for use particularly, with Edison` phonographs of the Home type, although obviously not limited to such use.

One of the objects of my present invention is to provide adevice for the purpose,

which is particularly de sirable in connection with phopographs of the Standard type, the mechanism being of such a character that it may be constructed as a separate attachment and applied to existing phonographs by any lperson of ordinary intelligence and skill.

A further object ofthe invention is to somewhat simplify the mechanical construction of the device as' becomes possible in its application to a phonograph of the Standard type. l

In order that the invention may be better understood, attention is directed to the ac-I companying drawings,- forming part of this specification, and in which Figii're l is a plan view of a portion of a Standard phonograph with my present improvements applied thereto; Fig. 2 as crosssec'tional view showing the parts in the position which they occupy when a differential feed movement is applied to the carriage, for instance two hundred threads per inch; Fig; 3 a corresponding view showing the parts in position to be fed directly by theV eed screw; Fig.` 4 an enlarged detail view illustrating the feed screw, worm', and abutment,- ii'i' position to effect a differential feed; and Fig. 5 a corresponding view showing the same parts in position to effect a direct feed. In all of these views, corresponding parts are represented by the' same numerals of reference. l

Although, as I have previously said, my improvements have been particularly designed as an attachment to Standard phonographs, it will be of course understood that they may be readily modie'd so as to apply to phonographs or other talking machines of any desired type having a feed screw and a movable carriage.

The phonographshown in the drawings is provided with the usual bed plate 1, standards 2 2, carrying the guide rod 3, the straight edge 4, and with the arm 5 sliding on the guide rod 3,- and resting atits forward end on the straight edge 4, and formed'with an eye G, in which the recorder or reproducer is mounted. It is also provided with the usual inandrel 7, which carries the record to be reproduced, o r blank to `be recorded upon; and driven in the ordinary way from the shaft of the mandrel 7 by gears 8 8, is the feed screw 9, mounted in centers between '7 andards 10 10`. 7With the ordinary Standard l phonograph a sprlng arm extends obliquely downward from the sleeve 11, forming the supporting means for the arm 5, and said spring arm carries at its lower end a nut which engages the feed screw 9, but in applying my present improvements to theaphonograph this spring arm and nut are removed.

Hung from the guide rod 3, adjacent to the standards 2 2 are arms l2, 'connected by an integral bar 13. Secured tofthis bar is a bracket 1l, the outer end of which at extends across the face of one of the standards 10. and the bar interposed between ard 10, the arms respect to the guide rod 3. Extending this standard 13 is a U-spring 1o, which tends to swing the bar away from the standk 12 moving pivotally with screw for the saine purpose.

22 is moved to the position shown in Fig. 3,'

through the arm 15 on the bracket 14s, is an j i the abutment l.) will be turned so as to preadjusting screw 17, engaging the outer face of the bracket of the standard 10, and provided with a lock nut 1S, whereby the poil sition of the bar 13 with respect to the stand- 1 ard l0 may be very closely adjusted. ed in the b acket 14; in one of the arms 12,

Mounty respect to the abutment,

and substantially in line below the guide rod g 13 is an abutment 19 for the differential feed, said abutment being provided with a rack portion 20, and with a fiat cut-away portion 21. Preferably the `abutment is formed of a screw threaded shaft with a por tion 21 planed ott, will be understood. The abutment 19 may be turned so as to present either the smooth portion 21, or the rack portion 2O to the worm i described) by means of an arm 22 carried on its extremity` and provided with a limiting linger 23, which engages the upper edgeef the bar 13 (see Fig, 3) when the abutment is moved in one direction. The arm 22 engages the topof the bed plate 1 (see Fig. 2) when the abutment is moved to its limit in the other direction. p

Loosely carried upon the sleeve 11 at one is a ring 24, formed with socket isa pin 26, formed with a head 27 at its lower end. Mounted on the pin between the head 27 and the lower end of the socket 25 is a worm wheel 2S. l/Vhen a differential feed is to be imparted to the car-l riage, the worm, wheel 28 rotates freely on the pin 26, and when a direct feed is to be imparted to the carriage the worm w'heel is locked from rotation. secured by providing the pin 26 with a thumb nut 29 at its upper end, so that the pin may be forced upward to clamp the worm wheel between the head 27 and the lower end of the socket 25. y The pin is prevented from rotating in any suitable way, for example by an ordinary pin-and-slot arrangement 30.

Extending out from the ring 24 is an arm 31, provided with an adjusting screw 32, the head of which is adapted to be engaged by the arm 5 (seeFigS. 2'and 3) when the parts are in operative position for recordingand reproducing sounds. This engagement of the arm 5 withthe adjusting screw 32 swings the ring 24 on'the sleeve t1 and engages the worm wheel 28 with the feed screw 9. l/Vhen, however, the arm 5 is elevated to move the recorder or reproduce-r relatively to the blank or record, a small spring l-5 (to be presently y rl`his latter effect iscarried by the ring 2,4 and engaging the bar lil will lnove the ring in the opposite direc# tion to disengage the worm wheel '28 from the .screw i), and permit the carriage to be moved freely back and 'torth in the same way as with the ordinary arrangement when the feed nut is withdrawn from the feed lVhen the arm sent the iiat portion 2l to the worm wheel 28, and there is snllicient clearance between these parts as to permit the worm wheel to be moved as a whole without rotating with During this movement, the worm wheel 28 will be clamped against rotation by tightening the thumb nut 2S). Obviously, the movement of the carriage imparted in this way will be a direct feed, since the worm wheel 28 will act like the ordinary nut. lf, however, the arnr22 moved to the position shown in llg. 2, the rack 2O will be engaged with the arm and by loosening the thumb nut 2) to permit the' worm to rotate, a di'tl'erei'iti-.d movement will be imparted to the carriage, due to the rotation of the worm by the feed screw 9, and lits engagement. with the rack 20, to slowly traverse the same longitudinally. rthis of any desired ate, depending of course upon the size and ratio of the parts and in the drawings I have illustrated proportions which will impart to the carriage a movement equivalent to a direct feed of two hundred threads per inch.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is followsz 1. In a feed mechanism for Kphonographs,`

the combination with a movable carriage and a feed screw, of a worm wheel movable with the carriage and engaging the feed screw, and a fixed abutment with 4which the worm wheel engages and with respect to which it is moved longitudinally by reasonv of its rotation with the feed screw, substantially as .set forth.

4 2. In a feed mechanism for phonographs, the combination with a movable carriage and a feed screw, of a worm wheel movable with the carriageand engaging the feed screw, and alixed abutment with which the worin wheel engages and with respect to which it is moved longitudinally by reason of its rotationfwit'h the feed screw, means for locking the worm' wheel from rotation and meansfor disengaging theI abutment from said worm wheel to permit the worin wheel to be moved bodily by the feed screw, substantially as .setl forth.

3. ln a feed mechanism for phonographs, the combination with a movable carriage and a feed screw, 'of a worin wheel movable with the carriage and engagii'ig the feed screw, and a lined abutment with which the differential movement may be means for adj 115th 'v Spc to une Worm Y forth.

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(i. ln feed Y tha combxasu W: :md a feed screw, ed to the carriage and eng sarew, 'ask with Whoh engages m mean fm" mm/' Miou signed und ,Wnssscd

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