US1294850A - Phonograph. - Google Patents

Description

M. w. TURNQUISTL v PHONOGRAPH.

APPLICAHON FILED JAN. 4. 1912,

Patented Feb. 18, 1919.

3 SHEETSSHEET I.

M- W- TURNQUIST.

- PHONOGRAPH.

APPLICATJON FILED JAN. 4, 19'18. 1,894,50, Patented Feb. 18, 1919.

3 snms-snsn 2.

M, W. TURNQUISTE PHONOGRAPH. APPLICATION FILED JAN. 4 191a L25850 Patented Feb. 18, 1919 3 SHEETSSHEET 3.

MAG-NUS VJ. TURNQUIST; 61F CHICAGO, ILLINOLTS PHQNO GRAPH.

Specification of Letters E'atcnt.

[application filed January 4, 1913. Serial E0. 21 0,3 34.

This invention relates to phonographs and is in the nature of an improvement upon the repeat mechanism (with certain novel features added thereto) shown and described in my prior Patent No. 1,249,251. issued Dccemher 4, 1917. for improvement in phonographs.

One of the objects of the present invention to simplify and otherwise improve upon the repeat mechanism shown in my prior patent. Another object is to provide simple and clficient means for controlling the number of times that the musical selection is repeated, and for automatically stopping the mechanism when the piece has been played through the predetermined number of times. Another object is to provide a phonograph with controlled repeating mechanism actuated by the turn table-drive shaft or the phonograph. Another object is to provide improved means in a repeat mechanism whereby record disks turn table or record of large or small diameter may he used.

Other objects and advantages will occur in the course of this specification and with all of said objects and advantages in view, this invention consists in the several novel features of construction, arrangement and combination of parts hereinafter full set forth and more particularly defined in the claims.

The invention is clearly illustrated iii-the drawings accompanying this specification in which:

Figure 1. is a. plan of the repeat mecha nism and u fragment of the lone arm and connections, the turn table having been removed trom the view; Fig". 2. is a view partly in side elevation and partly in vertical cross section. taken on the line 2 2 of Fig. 1; Fig. 3. is a detail vertical longitudinal section taken on the line 3-3 of Fig. 1; Fig. '-'l. a detail vertical longitudinal section taken on the line 1 of Fig. 1; Fig. 5, is a detail vertical section taken on the line 3-5 of Fig. 1; Fig. (3, is a detail horizontal section taken on the line ($6 of Fig. 4:; Fig. '4', is a detai Zontal section taken on the line Fig. 5; Fig. 8, is an end view oi the co mechanism shown in Fig. 4, looking iroin below; Fig. 9, is a detail vertical cro" tion taken on the line 9 9 in the 1. and 10. is a perspective vi or a slightly modified .lorm of the adjustment mechanism for accommodatino" the device for large and snuill record disi Referring to said drawings. the re character A de nates the top of the p graph cabinet or case ordinary construction in which is contained the usual motor. (a fragment of which is shown at B) for operz'iting the phonograph. mechanism. in accordance with the usual and common prac tice, said motor drives a spindle or shaft 7, to which is secured a sleeve 8, that carries the turn table 9. The upper face the turn table usually provided with a Felt cover 10. and the usual spindle 11, projects up from the table at its axis of rotation.

The tone arm 13. is rotatively mounted on a vertical axis. supported hv the cahimvt in an suitable manner. and said tone arm overhangs the turn table as usual. is provided with an of theordinar v and well known rcproducers 1%, which is liinn edlv connected to the tone arm by a tubular bracket 15. which is pivotallv connected with the tone arm on a horizontal axis. The stylus or needle 16. is employed in conuection with the reproducer, as is common. and travels in a spiral groove in the record disk 17. The horizontally swinging tone arm 13. is connected with the horn or tune chamber in accordance with any of the well known ways and during the operation of the phonegraph, (While reproducing a musical selection) the tone arm travels in the direction indicated by the arrow a. thereon in Fig. 1, whilethe disk itself rotates in the direction indicated by the arrow '5. thereon.

Secured to the tone arm is a bracket 19, which. in the embodiment of the invention shown herein. projects down from. the lower end of the tone arm from a point near its vertical portion, and journaled in said bracket is a spindle '22, which has an enlarged head 21, at one end, hearing against one side oi the bracket 19. and a pin or other cross piece 21, at the other end of the spindle 22. holds said spindle against endwise movement relative to the bracket. Fixcdly secured to said spindle '22, is a frame shift sure, and when the rod 40 is turned to clamp the abutment member to the bar 38, this spring pressure is increased, whereby the abutment member is firmly clamped to the bar. The outer end of each rod 40", is bent at right angles to the main portion to provide a handle :0 whereby the rod portion l0, may be turned, and whereby the abutment members may be adjusted back and forth upon the shift bar 337 In the case of the abutment member it), the rod 40, is shown as being somewhat longer than the rod 40, of the abutment member 41, and it is shown as having its outer end rotatively supported in an ear or bracket 38, which extends up from the base plate A It is obvious that by turning either rod 40, to loosen the grip between the abutment member, and shift bar, the abutment member may be slid along the shift bar 38, to vary the location of said abutment mem ber to thereby accommodate record disks of diti'erent diameters. The roller carrying arm 23, moves between the abutment members e0, 41, and when it has practically reached the limit of its movement in either direction it strikes one or the other of the abutment members, depending upon which direction it is moving, and swings the lever 35, upon its fulcrum, thereby moving one of the supports L7, 47, into position where the plate 42, or 43, may drop off the support into position to be engaged by one of the shoulders 45, ,by the worm or screw 32 The control mechanism for controlling the number of times that the repeat mechanism is to operate, comprises a brake shoe 50, which is arranged to act upon the edge, of the turn table and arrest its movement by frictional engagement therewith. in the form of the invention shown in, the drawing, said brake shoe 50, is carriedby a setting disk or dial 51, which is frictionally connected with a toothed or ratchet wheel 52. The shaft or spindle 28, of the frame C, has a pawl or detent 53, upon its end which is arranged to enter the notches between the teeth of the toothed wheel 52, and to partially rotate said toothed wheel each time that the frame C, is shifted to the right, as viewed in Fig. I. Said pawl or detent 53, is here shown in the simple form of a crank arm upon the end of the spindle 23, and said crank arm is rocked back and forth each time that the frame. C. is turned upon its axis toraise and lower the track 27, and as a consequence, the toothed wheel 52. is advanced one step. The frictional connection between the setting disk or dial 51, and the toothed wheel, may comprise a screw 54-, a stationarv plate 55, which is ed to the top A of the cabinet, and supports the setting mechanism, a washer or spacing member 56, a knurled button or head 57, threaded upon the upper end of the screw 54, and a spring washer 58, which is inserted between the toothed wheel 52, and a plate 55). The screw is nonrotatively ronnected with the plate 59, and the spacing member 56, is screwed upon the screw 54, and turns therewith. By tightening up the knurled button or head 57, friction is created between the plate 59, spring washer 58, and toothed wheel 52; between the toothed wheel 52, stationary plate 55, and spacing member 56, and between said spacing member 56, setting disk or dial 51, and knurled button 57. A pointer 60, is placed adjacent the setting disk or dial 51, and enables the user toset the disk at any place along the numbered portion thereof to cause the repeat mechanism to repeat as many times as is desired. The numbers upon the disk or dial 51, correspond to the location and number of notches in the toothed wheel 52.

A shoulder 61, is provided upon one of the members of the setting mechanism and is here shown as comprising .a pin secured in the spacing member 56, and said shoulder 61, is arranged to engage one arm of a lever 62, pivotally supported on the top A, as at 63, with its other arm in engagement with the shift bar 38. The shoulder 61, is located at such a position that when the brake shoe 50, engages with the turn table to stop the same, the shoulder 61, engages the long arm of the lever 62. and draws the shift bar 38, toward the right, as viewed in Fig. 1., thereby swinging the long end of the lever 35, toward the left and bringing the right, band edge of the elon ated slot 37", against the upstanding pin 37, thereby locking the parts until the setting disk is again moved to set the mechanism for repeating.

Vhere an electric motor is employed instead of a spring motor for driving the turn table, circuit breaking means may be employed for breaking the motor circuit at the instant that the mechanism has repeated the predetermined number of times, and this circuit breaking means may comprise the plate 59, and two terminals (it, (it. which are supported in position to contact with the plate 59. Said plate 59, may have :1 gap 65, located in position to register with the terminal 6i, and thereby break the circuit when the set-ting mechanism has reached the stop position it occupies when the brake 5t), fric tionally contacts with the turn table.

A slightly modified form f the adjustment mechanism for limiting the range of movement of the tone arm is shown in Fig. 10. In this'view, the shift bar is seen at 38 and the abutment at 41 which abutment cmnprises a piece of wire bent to form an upstanding loop which grips the shift bar 38 and a lengthwise extending portion 41 which terminates in coil 4H twisted around the shift bar 38. The abutment member, as

t es-ease porting said first mentioned arm, a worm secured to and rotating" with the turn table spin ile. said frame being adapted for en gag'einent with said Worm on opposite sides a thereof to effect oscillation of the frame shift plates tulcrnined on said frame, inenr here" on said Worm cooperating with pa rts on said shift plates for reciprocating said frame. stationary supports for said shift plates. movable supports for said shift plates. and operative connections for said movable supports actuated by said iii-st mentioned arm.

2. in repeating mechanism for phonol-z'i graphs. a Worm mounted on the turn table s .die of a phonograph, an oscillatory and A iprecatory frame having fingers adapted to engage. the thread of said Worm, shift 1 lates pivotally mounted on said frame. coasting: elements on said worm and shift la're's for reciprocating said frame, stationsnpports for said shift plates, movable 4 )orts for said shift plates. a shift bar, mi in; hitt ng said shift bar in either cation. and operative connections between shift ear and movable seaports. 3. in repeating mechanism for phonis, a worm mounted on the turn table mile of a phonograph and having a snonlder thereon. an oscillatory and reciprocatory frame having lingers adapted for engagciiaent with said Worm, shift plates pi;- otall mounted onsaid frame and having parts adapted to be engaged by said shonls wherein the frame is reciprocated, statirmar n'ts for said shift: plates. :1, le Tc:- haw rovable supports for said shift plat es. it t liar connected with said lever endand nwzns for lull! liar, an abutment mei'nber mounted on said shift bar and a "1': rod relatively mounted in said abut- .ncnt member on eccentric portions, Wherehe abutment memher is clamped noon itt bar.

n repeating meehanisni for phonoa hiit bar. an abutment member perforated ears slidably mounted on bar and a clamp rod having or ortions rotatircly mounted in said re the shift. bar.

end with an upturned spring por- :e.i-.ing against the lower edge of the an and a clamp rod having eccentric rotativel'y mounted in said cars. l. in repeating? mechanism tor phono v a. shlt't. ear. :1 abutment member nlalr'l mounted thereon and having spring ganist. said shift bar, and clampin means for clamping said abutment member on said shift bar against said spring pressure.

8. In. repeating mechanism for phonographs. an oscillatory and reciprocatory frame, means operated by the turn table spindle of a phonogr ph for oscillating and reeiprocating said frame, a pawl carried by said frame, a toothed Wheel actuated by said pawl, and a brake shoe frictionally connected to and moving with said toothed wheel and adapted to'be brought into frictional engagement with the turn table by said pawl.

In repeating mechanism for plionographs, an oscillatory and reeiproeatory frame, means upon the turn table spindle ot' a phonograph for oscillating and reciprocating said frame, a pawl carried by said frame, a toothed Wheel adapted to be actuated by said pawl. and a. setting dial frietionally secured to said toothed Wheel and having a brake shoe arranged for frictional engagement with the turn table.

10. In repeating mechanism for phonographs, an oscillatory and reciprocatory frame, means controlled by the turn table spindle of aphonograph tor oscillating and reciprocating said franie,-a pawl carried by said frame, a toothed Wheel adapted to be intermittently rotated by said pawl, a setting ial having a brake shoe adapted for frictional engagement with the turn table, anl frictional eonnecting devices between the toothed Wheel and dial.

11. In repeating mechanism for phonographs. an oscillatory and reciprocatorg, frame, i'neans carried by the turn table spin dle of a phonograph for osrillating and reciprocating said frame, a pawl carried by said frame, a toothed whccl arranged to be intermittently rotated by said pawl, a stationary plate, a setting dial having a brake shoe adapted for frictional cn goment with the turn table, and friction mums between said toothed wheel. setting dial and stationary plate.

12. In repeating mechanism for phonographs, an oscillatory and reciprocator) frame, means carried by the turn table spindie of a phonograph for oscillating and recipro ating sa d frame, a pawl carried by said frame, a toothed Wheel arrangz cd to be intermittently rotated b said pawl. a setting dial frictionally connected to said toothed Wheel. a brake shoe adapted to be intermittently moved by said toothed wheel and arran od to trictionallv engage with Said turn table, terminal contact pioccs ol an electric motor operating circuit. and a contact: piece having a gap thcrcin and moving with said toothed Wheel.

'13. in repeating mechanism for phonographs. an oscillatory and rmaiprm-atory frame, means for oscillating and reciprocat- Wheel bears me, including an oscilia' scum 101* hmltlng the movement 3 by said 111;"; through said toothed I 0mg member and button Meade name a sinft 91' for actuating said oscillatory lever, and a lever pivm'zally csnnected t0 snld spfit bar and adapted to be engaged

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