US1224547A - Motor-controlling mechanism for talking-machines. - Google Patents

Description

wens 6-5. m

A. A HUSEBY.

MOTOR comnoumu MECHANISM ma TALKING mcumc's.

' APPLICATION FILED JULY 31. I916.

- 1,224,547. PatntedgMay 1, 1917.

3 SHEETS-SHEET I A. A. HUSEBY. MOTOR CONTROLLING MECHANISM FOR TALK NG MACHINES.

APPLICATION FILED JULY3I} I916.

Patented May 1, 1917.

3 SHEEISL-SHEET 2.

A. A HUSEBY.

MOTQR CONTROLLING MECHANISM FOR TAIKING MACHINES. APPLICATION FILED JULY 31.19 6.

1,224,547. v Patented May 1, 1917.

3 SHEETS-SHEET 3 UNITED STATWNT OFFICE ALBERT A. nesnmr, or cnrcaeo, 11.1.11 501s.

MOTOR-CONTROLLING mncnamsm non TALKIN e-MAcnmEs.

To all whom it'may concern:

lie it known that I, Amnzn'r A. HUSEBY, a citizen gf the United States, residing at (hit-ago, iri the county of Cook and State of lllinois wha iie inventedcert rin new and useful Improvements. in Motor- Controlling Patented Ma'yi, i917.) Application filed July 31, 1916. Seria1No.112,254.

toward the plate mounted upon the upper wall of the cabiiet shown in Fig. 1 and to Mechanisms for Talking-Machines, of which the following isa specification.

This invention relates in general to phonographs or talking, machines, and has more particular reference to the mechanism for controlling the '{notor whereby the speed of the motor may regulated to vary the tone of the machine andwhereby the motor maybe automatically started and stopped by the movement of 'a movable element of the machine,- preferably the tone arm, which travels across the face of the disk record.

()ne of the primary objects of this invention is t-ouprovi'de an hapmvedbrakeoperating and con rolling mechanlsm by means of whiclrthe brake may be applied to stop tllQ/HlOtOl' and withdrawn to permit the motor to operate, the mechanism being designed toretract the brake upon move mentoftlie tone armxto starting position and to automatically applythe brake when speed by the simple nfig iipulation of a. r0

ta'tahle button or "knolif-located ma con-" the tone arm reaches the endof the record groove this mechanism being adapted for manual adjustment so that the point at which the brake will be ap 116d -may.be

regulated to a fine degree 0 nicety to accon'nuodate themachine to various records inwhich the record groove terminates at different;distances from the centers of the record disks.

- Another object of my invention is to pro vi'de a simplefand effective mechanism for rcgulatingand ten elling the motor speed,

which mechanisn he adjusted and-finely regulated to produce the desired mote venient and readily accessible position on the machine,

Other objects and many ofthe inherent tl1l\'=l1li.;l;.f0h '(lf this invention will be readily appn ciatcd as the same is more fully under stood by rcl 'cl'cnce to the following description 'vvilierilcqn sidcred in connection witlrthe acromp'adying drawings- Referring tothe dra\vi||gs,{

liigurc through the upper portion of a-talking ma.- chj'nc embodying xuyinvention; v

.l ig'. "J a bottom view lookingupwardly Specification of Letters Patent.

I the shaft 2'2. A speed governor of the lISllul a l a i-entical sectional view;

showing the mot or and other mechanisms carried by the pi ate; I 1

F'g. 3 is a fragmentary view lookingtoward the left in Fig, 2; i

Fig. 4 is a sect onal view on theline of Fig.2; Fig.5 is a sect onal view on the line .5-.5 c5

of Fig.2;

Fig. 6 is a deta l sectional view on the line (i (3 of Fig. 2; and l l Fig. 7 is a fra;,'menta"ry sectional view on, v

the line line 7" of Fig. 2. 1 7.0

From .an inspiction of Fig. 1 it will be,

observed that tln cabinet, or case, in which the principal parts of the mechanism are housed comprises the rear wall 8, the bottom wall 9, the Front wall 1 1, the top. wall, L5

large substantial y central opening 14. ovzer I which is secured l plate 15, on theundeiside of which most oi the n'lechanieal .parts'arc supported. In a suitable b 'acketstructure con1prising. the plate '16 pr )vided \vith a-lunnber pi downwardly en tinding portions is mounted a. spring motor, designated generally byqlfl' which may be of any well known or pre ferred constructi in, adapted to hewound up in the usual man ler by acrank- (uot'shown) 1 attached to the outer end c the winding shaft 18 which is suitablygcidaal' to 1hc;mo-. tor barreh f he turntable 1U- llPUllwhich the record disk 51 is positioned in the usual manner is suppoi ted ab ove the plate 1.5 uporr-y;

25,-and meshing with a pinion 27 fixed e112 centrifugal hall :onstruction is driven from the shaft 22 through a worm wheel 28; "on. this shaft meshin with a worm 2-9 on the? main shaft 31 01 t e governor. A rotatable element 32 in t' 1e form of a-disk of sub= stantial thickness is secured to the. head33 of the governor: o as to move longitudinally; V I on the. shaft 31 upwardly, viewingFig. 2,.- and to the right viewing .Fi .7, uncler thew centrifugal actlfll of thefiy ails :34 as the speed of themoior' is accelerated.

he rear end -f theplateis provided with."

gear and a go 11' 26 also fixed on thesl'iaft' an elongated opening 35 through which projects the vertical portion of the sound tube which, at its u )per end, is extended horizontally to provide the tone arm 36 carrying at its outer end the usual sound box 37 equipped'with the vibratory lever 38 and the stylus 39 which engages with the record groove of the record 21. The lower end of the sound tube is turnedforwardly and its mouth 41 is adapted to oscillate in an opening in a stationary wall 42 through which it projects, the sound being discharged into an amplifier 43, the particular construction of which is immaterial so far as the present invention is concerned. The sound tube is supported so as to oscillate about the axis of the mouth 41 upon a' suitable-scale bearing designated generally by 44 at the rear of the sound tube, a counterweight (not shown) attached to the lower end of a hanger rod 45 being employed to maintain thesound tube in substantially upright position. The tube, however, is permitted to oscillate upon the-bearing 44 back and forth in the elongated opening 35 through the plate 15,- so that the tone arm may travel from the periphery of the record disk substantially to the center thereof, as is customary in reproducing the record.

The parts thus far described are typical of 'one known type of machine, and it is believed that a detailed description of these various elements is unnecessary herein as they form the subject matter of other applications in which the details are fully elaborated.

For the purpose of controlling the speed of the motor and thereby regulating the tones of the machine when in operation I have descrlbed, particular attention being directous or in proximity to one face of the rotatable element 32, so that as this element is drawn toward the right, viewing Fig. 7, by the action of the centrifugal fiy balls of the governor it contacts with this friction piece whereby the speed of rotation 'is limited. The friction piece is normally urged toward the disk 32 by aspring52 coiled about the pin 47, one end of the spring being hooked eneath the side-piece 46, as indicated by 53,

and the other end being engaged with the short arm 54 of the lever 48, as-i ndicated at 55, the tendency of the spring being to urge the lever in a clockwise direction about its rovided mechanism which will now be pivot pin 47, viewing Fig. 7, to thereby yieldinglyforce the friction piece 51 toward the friction disk 32.

' For the purpose of limiting the movement of the friction piece toward the disk I have provided a lever 56 fulcrumed in a bracket cam 61 carried by an upright post 62 which is rotatably mounted in the'plate 15 and is equipped at its upper end with a knurled knob (not shown), by means of which the post and its cam may be manually rotated by the operator to thereby adjust the lever 56 upon its fulcrum and, through the intermediary of the .lever 48, determine the extent of approach of the friction piece 51 to the friction disk 32. In other words, bya partial rotation of the adjusting post 62 the position of the friction piece 51 can be varied so as to permit the motor to operate at a speed whichv will roduce the desired tones.

The mechanism y means of which the mo tor may be started atWill-and stopped automatically willnow be described. Referring first to Figs. 2 and.- 4, itv will be observed that I have fulcrumed at 63, in a suitable bracket or hanger 64, a brake lever 65 which is equipped at one end with a brake block or shoe 66 of any suitable material of suflicient width to lie in proximity to the eriphery of the friction disk 32 in any 0. 'its normal movements longitudinally of the governor shaft 31. When this brake shoe is in contact with the disk 32 the motor will be held against rotation but when the shoe is retracted from engagement with the disk the motor will be permitted to run at the speed determined by the centrifugal governor and the speed-controlling device hereinbefore described.

Rearwardly of the motor, as shown in Figs. 1, 2 and 4, I have mounted upon .the lower ;face of the plate 15 a bracket construct/lon comprising a late 67 provided at its ends with a pair of ownwardly projecting portions 68. Near the lower ends of these downwardly pro'ecting portions I have journaled a rock sha t 69 provided at one end with a disk 71 carrying a crank pin 72 which is engaged'in the bifurcated end 7 3 of the brake lever 65, so that upon rotativ'e movement of-this rock shaft in a counterclockwise direction, viewing Fig. 4, the application of the brake block 66 to the disk 32v will be accentuated while upon clockwise rov o fmthe arm 7- in a eountercloeluvise direeplyingthe brake. 'oflthershaft (39 under tlie inlluenee'ot' the nected to a stationary stud or ear 75 by meansofa eontrar-tile spring 713 which tends to, rotate the shaft through the inu rmediary tion, viewing Fig. 4. thereby normally ap- The rocking movement spring ifi is limited by abutment of the brake shoe 66 against the periphery of the {friction disk 32.

Foirwardly of the rock shaft 69 a rod or bar;,;7 7 ,is mounted in the downwardly ex- :t'ending portion 68 in parallelrelation with the-rook shaft so that the rook shaft and this har -form in etl'eet a guideway upon which 7 an arm .78 is adapted to slide back and forth longitudii-ially of the shaft and bar. This arm is provided with openings through which the rock shaft and bar 77 extend and for the purpose of steadying the bar its forward end is turned rearwardly asindirated at 79 into parallel relation with the main portion of the arm, this rearwardly turned portion being also provided with openings to receive the rock shaft and the bar- 77 whereby ith'e arm is steadied and accurately guided shaft b'utwi'll be incapable of rotation re 'tively to theshaft, It will thushe Tbvl' during its sliding moven'ient Between the parallel portions of the arm a lateh bar 81 is also slidably"mounted upon the rock shat-t, this latch bar bein also bent to provide a rear'ward'ly extending portion 82 parallel "\vitli' the iuain portion of the latch bar, both portions being provided with openingsto lre'eei ve the rock shall, and the extremity of the'rearwardly extending portion is reduced and turned forwardl v,'as unheated at 3,

and is slidingly engaged in a longitudinal roove 84formed in'the rook shattto thereby spline the latrb bar upon the rock shal't so that it will=slide longitudinally of the that the latch bartravels bark at)! -."l'ort h along the rookshaft with the arm 78, but 'it'istead'ol remaininghorizontal as the arm fdositpartakesof the oscillatory movemerits of the rock shaft, so that the extrenr it'y ofthe latch bar nroies iipwark'lly and downwardly relativelyto the arm 78.

l tel'erring-no\v -to"l igs; 2 5 and (3, it will beiobserveil that ata little distanre from the end 'ol' the arm 78 lhave formed, by bending over the metal of e arm, a pair of ears'HS bet-ween whirh up n a pintle. Ht) there is pivoteda lateh- 87 provided with a ('ontart portion 88 of felt or other suitable material adapted to be engaged bythesound tube as the tone arm travelstoward the center of the record. .a\ spring 89 coiled about the pintle Stl with its opposite ends hearing against the end of the arm and the outer end of the latch respertiv 91y, normally holds the latch in the position shown in Fig. The inner or forward en lot the latrh is turned upwardly as indr-ated b v rel'erem-e eharaeter 91 in Figs. 5 and 1. and at theedge proximate to the'arii 78 is provided with a notrh 92 adapted to uigage beneath the 0nd of the latrh bar 81 when the latch bar has been depressed into the positi n shown in dotted lines in Fig. I. The latrh bar is thereby held in this dtpressed positi n so that the rock shaft thri ugh the intermediary l' the lever 35 holds the brake shoe in retrm'ted -position and [N rmits the motor to run. An. adjustable serow U-S threaded through the arm 78 limits til-swinging movenn-nt ol' the latch when it is operated to release the lateh bar.

The latrh bar 8'1 and the arm TH rarrying the rod 77 is .noH-d longitlulinally ot' the elongated opening 355 in' the plate 13 to bring the contact member into engagement with the sound tube when the parts are set for stopping position by meansol' manually op-. e'rable inerhaniml which will now be described. A bel rrank lever romprising the arms EJ-iand U5 is pivotally mounted upon a pin or lulrrum 0d 913 suspendedin a bracket 97 from the lover fare of the plate 15. and the arm 5H ismnnerted with the arm 78 by means ol a link US. The arm'tt iis eonneeted' by a'li'nk ht) with an arm 101 seeured: upon the lower end of a post 102 \vhirh projects upwardly thriiugh the plate 15 and is equipped at its upper end with a knurled knob 103 by in *ans of which the post may be oscillated in onedireetion or the other to thereby mow: the arm 78 carrying the latch into the desired stopping position in the path of mm enient ol' the sound tube.

dipon a bram'et ltJl projecting laterally from oneol' the downwardly projerting por tions UH, there s pivotally mounted upon a serew pin 10:? bellerank comprising the The other arm projects arross the -jfi in t 1e plate 15 into the: path of I'novei'nt l tl e sound tube so that when the tone swung to starting position,

or, in fliil ltsl'dwtltllhg the stupidbox is luovml to the pertphiiry ol' the rem-irdahsli thls arm will .be engaged unddnbe, llier swinging the h: iill ijt pngot jan'd moving the arm it alt-all arnr'ii thereby roelung to swing the lateh'bai' 8]- downwardly into its extremity is disposed in l'ront ol" the railly pro ertmg arm 7-1 seeured to the roek tlm rork shalt-13,

lat hing engagement with the la'teh 87. 'l oprevent noise w iioh might result from eonbut of the ll lt'tlvl arm 107 wlth the metal portion (58 the e uved portion of arni .107: is

'trated as embodying my invention is substantially as follows: Assuming that the parts are in the position shown in Fi 2 with the brake shoe in contact with the Eriction disk 32', a record is placed .upon the turntable 19'and the tone arm is moved inwardly until the stylus 39 rests in the last record groove near the center of the disk.

The knob 103 is nowrotated so as to move the arm 78 across the opening 35 until the contact piece 88 abuts against the sound tube, which position can readily be determined by the fact that further -rotative movement of the knob 103 will be prevented by abutment of-the contact piece against the sound tube. The tonearm is swung outwardly to bring the stylus to the periphery of the disk, which movement will bring the sound tube against the arm 106 which it will swing on its pivot thereby rocking the shaft 09 through the intermediary of the arm 107 and the arm 74 so as to lower the latch bar 81 into latching engagement with the latch 87 and at the same time "rock'the lever so as to release the. brake. The motor, as soon as the brake is released, will begin to operate thereby revolving the record disk and the instrument will begintov reproduce the record. Should the speed be too high or too low to properly produce the tones inscribed on the record the speed of the motor can be ,regulated'by turning the knob mounted upon the upperend of the'regulating post 62. When the record has been reproduced and the stylus is engaged inv the inner record groove the sound tube will abut against the contact piece 88 of the latch 87 and thereby swing the latch upon its pivot to release the latch bar 81,- permitting the spring 76 to rock the shaft 69 and thereby apply the brake which stops the motor,

It is believed that my invention and its mode of operation will be readily understood from the foregoing without further description, but it should be understood that the mechanical construction and arrangement of the'various details shown and described are-capable of considerable modification andya'riationwithoutdeparting from the spirit of the invention .as set forth in the following claims.

I claim:

1. In a. motor-controlling mechanism for talking machines, the combination oi a 5. In a motor-controlling. mechanism for 1.

bar splined to the s motor, a brake therefor, a sprin for applying said brake, a bodily! shi table latch mechanism located in the path of a movable element of the machine and adapted to hold said brake in retracted position, said brake being released through contact of said mov able element with said latch mechanism, manually operable means for positioning said latch mechanism at any desiredposition in said path of movement, and means enga held by sai latch mechanism.

2. In a motor-controlling mechanism talking machines, the combination of a motor, a brake therefor, a spring tendin normally to apply said brake, a bodily a justable arm extending across the path of movement of a movable element of the machine, a latch pivoted thereon, manual means for adjusting said arm to position said latch in any desired position in said path of movement, a latch bar connected with the 7-5 geable by said movable element for with rawin the brake and causing it to be I for I Y brake and adapted to he engaged with said latch to hold the brake in inoperative position, and means projecting across saidpath ofmovement in a position to be actuated by said movable element whereby said latch bar.

is engaged with said latch when said movable element is brought into contact with said means.

3. In, a motor-controlling mechanism for talking machines, the combination of a motor, a brake therefor, a spring for applyin said brake, a guideway including an oscil atory member, an arm mounted for transverse sliding movement on said ideway, a latch carried by said arm, a atch bar splined on said oscillatory member and adapted to' be engaged withsaid latch, connections between said oscillatory member and the brake whereby the brake is held in inoperative position when said lateh-bar'is en aged with said latch, and means. for oscil ating said member against the force of saidbrake-applying spring to move said latch-bar into engagement with said latch.

" 4. In a motor-controlling mechanism for talking machines, the combination of a motor, a brake therefor, a spring for applying said brake, a rock shaft, an arm mounted to slide longitudinall of said shaft a latchliaft and slidable with said arm, a latch carried by said arm in position to engage and retain said latch-bar manually o erable means for moving said its arm to pos tion the latch in. the path of movement of a movable element of the machine, a connection between said brake and' said rock shaft, and means also adapted to be actuated y said movable element of the machine for ocking said shaft to bring saig iatcgdiar into locking relation with sai atc i said rock shaft, an 'll'llll l'iy midi arm in the pal .1 of movement of said movable element, San latch being adapted.

to lock saicl lfll'Bl'l-bikl ,ncl'to release the same 15 ll-"llfll'l engaged by said movable element.

5. In a. motor-contiolling mechanism for talking nmeliines, tl e combination of 2 motor, a brake llllfllf r, a pivotally mounted latch-bu 1 (:oitmectecl with said brake, a latch 20 l. all, ted. to retain saic latch-bar, and. an adjustilw some for trolling the extent of niovmiien; oi? said 1211 ll.

ALP ERT A. HUSEBY.

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