US1671752A - Automatic and coin-controlled multiple phonograph - Google Patents

Description

May 29, 192&

H. WALKER AUTOIATIC .AND COIN CONTROLLED MULTIPLE PHOiOGRAPH Fil Nov. 27, 1925 15 Sheets-Shoot 1 w W M j Z 1 h .J a 3 mm 6 mm fr l W U/ 2 Z A ,vfl a .H ,2 u I v2 F d U U W 1. U, H n a May 29,192& 1,671,752

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H. WALKER 4 AUTOMATIC AND COIN CONTROLLED MULTIPLE PHONOGRAPH Filed Nov. 27, 1925 15 Sheetsr-Sheet 5 //[/l//Y/////Y//////// Emma #37 7 WZ/rer;

H. WALKER AUTOMATIC AND COIN CONTROLLED MULTIPLE PHONOGRAPH Filed Nov. 27, 1925 15 Sheets-Sheet 6 May 29, 1928. 1,671,752

H. WALKER AUTOIATIC'AND COIN CONTROLLED MULTIPLE PHONOGRAPH Filed Nov. 27, 1925 15 Sheets-Sheet v "III/111011111 chrome May 29, 1928. 1,671,752

H. WALKER AUTOMATIC AND COIN CONTROLLED MULTIPLE P HONOGRAPH Filed Nov. 27, 1925 15 sums-sheet e E g-Ma."

May 29, 1928.

H. WALKER A UTOIATIC AND COIN CONTROLLED IIULTIPLE EHONOGRAPH Filed Nov '27, 1925 15 Sheets-Sheet 9 Md E= /H d a a/ 4 0, 2 a 6 n @7 0 n m 0 y m w; u M v M u 9 2 m i U a w i v v M a H 2 m .0 0 WV I 5 m I w M Gnome May 29, 1928. V 1,671,752

H. WALKER AUTOIATIC AND COIN CONTROLLED MULTIPLE PHONOGRAPH Filed Nov. 27, 1925 15 sums-sheet 10 gnvcurcr I l /Vary fiz/ May 29, 1928.

7 H. WALKER AUTOIATIC m com CONTROLLED IULTIPLB PHONOGRAPH Filed Nov. 27,. 1925 15 Sheets-Sheet l1 May 29, 1928 H. WALKER AUTOIAT IG AND COIN CONTROLLED MULTIPLB PHONOGRAPH Filled Nov. 27, 1925 15 sh ets-sheet 12 May 29, 192a 1,671,752

H. WALKER AU'I'OIA'IIO AND COIN CONTROLLED IULTIPLB PHOIIOGRAPH Filed Nov. 27, 1925 15 sheets-sheet 13 May 29, 1928. 1,671,752

. I H. WALKER AUTOIATIC AND COIN CONTROLLED IULTIPLE PHONOGRAPH Filed Nov. 27, 1925 lssneets-sneet 14 Sum-Jar 22 $7 Wan (Tmlm May 29, 192& 1,671,752

H. WALKER AUTOIAT IO AND COIN CONTROLLED MULTIPLE PHONOGRAPH Filed Nov. 27, 1925 Gn me 15 Sheets-Sheet 15 sin uurrn i ssures as s.

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AUTGM ATIC fitllIN-EUHTRQLLED MULTIPLE PHDIYUGBAfiH.

nopllcetlon filed Eovember 2?, 1923. Sterlal No. 71,817. i

The present invention appertains to that class of phonogra he or talking machines w .ich adapte to play a plurality of disc records successively and selectively, or my desired order.

object ot the invention is to simple, economical, andedicient or machine tor reproducing eplayed in successive order, @r. se-

' portant object oi? the invention 1 r a phonograph or a machine for reproducing sounds, a simple and eticient means for automatically placing, one at a time, a plurality of records upon a turn table or r'otative record support in successive order, and removing them from the turn tablesuccessively, in such a manner as to enable any desired one or more of a plurality or? records to be successively played: and returned to position to be readily acces- Bible for further and repeated use. I

Another important object of the invention is to provide a phonograph which is automatic in its operation in that it is only necessary to push an operating switchmanually or to drop a coin in a coin controlled switch mechanism whereby a disc record is removed from a vertically movable magazine, placed upon a rotating turn table, after which the reproducing stylus is caused to on age the record for the purpose of playing tie same. After the record has been played,,the stylus is lifted out of playing engagement with the same, and the record is removed from the turn table and replaced in its proper place in the magazine, thereafter the turn table is stopped automatically or allowed to continue in operation if it is desired to play a second, a third, etc. record, all parts being automatically operated to carry out their functions in proper order. v

The machine of the present invention also contemplates the reproduction, when desired, of any given record among a plurality of different records carried in a shiftable magazine which is both automatically and manually controlled. In carrying out this invention, a mechanism has been provided in whichthe various parts for carryingout one step in the cycle are so inter-related and constructed as to. less t e ctua mews for setting in ted to enable a plurality of resoration or for actually operating the mechamsm ipr performing the next step in the cycle of operation. In this manner a unitary machine'is provided in which only not paratlvely few elements are necessary in view of the several functions accomplished, and in which all unnecessary elements are eliminated.

d n the present embodiment oil the invert tron any number of disc records of sizes may be used and the apparatus autometically operated regardless oz? the gth of each. record played. The embodiment or the invention which I have disclosed by Way oi example includes the use of a suitable motor for operating the mechanism for reproducin the sound and for operating the record shi in magazine for so acting the records, said mechanlsm beln so controlled by a unitary controlling mec anism that when the machine has finished the reproduction of one record, said record is returned to the magazine and another record placed'inoperatlve position {or reproduction and the stylus engaged therewith. This 0 erationmay be carried on continuously, t e set of records in the magazine being played in a regular order, or. the machine may be 0 erated to carry out only a single cycle, name y topla'ce a record in engagement with the reproduction means and return it to the magazine after having been pla ed.

The operation of t e entire mechanism is automatic throughout, and one cycle of operation may be summarized as follows:

In normal position all of the records are located within the magazine, and the appa till mechanism and movable I ratus may be started by manual operation of a switch, or by placing a coin in a coin controlled circuit closer. A record is first transferred from the magazine to the turn table by a carrier or shifter arm. The turn table is in operation as soon .as one of the aforementioned switches has been closed. .As the record is being positioned upon the ox which has been automatically shifted so that another record will be selected by the shifter arm'for reproduction.

It is apparent that many forms of mechanism ma be provided for carrying out the object o the present invention, and I have shown one means for accomplishing each of the steps forming a part of this invention. The mechanism shown for carrying out each operation, however, is merely shown for the purpose of illustration and said particular form. of mechanism has been selected for illustration since the same has proved in actual practice to be both eflicient and reliable. Changes in the details of construction, and in the combination and arrange ment of parts may be\resorted to without departing from the spirit or scope of the invention as hereinafter described and claimed.

In the drawings,:'

Figure 1 is a frpnt elevation of the sound reproducing apparatus embodying the features of my invention showing a portion of the dust proof screen broken away.

Figure 2 is a top plan view of the apparatus with the cover of the cabinet removed.

Figure 3 is avertical section taken through the apparatus substantially on the line 3-3 of Figure 2 showing particularly the record magazine and counter balance mechanism associated therewith.

Figure 4 is another vertical section taken through the apparatus substantially on the line 4-4 of Figure 2.

Figure 5 is a fragmentary top plan view of the mechanism producing the steps in the operation of the apparatus, the turn table being removed and certain parts being .shown in section.

Figures 9 and 10 are diagrammatic plan views of the clutch operatin mechanism,

Figure 11 is an enlarg detail section through the center portion of the turn table tary section taken on the line 1313 of Figure 5,

Figure 14 is a top plan view of the mechanism'shown in Figure 13.

Figure 15 is a view similar to Figure 14, with the parts in a different position.

Figure 16 is a detail perspective view of the clutch tensioning lever,

Figure-17 is an enlarged detail sectional elevation taken substantially on the line 17-17 of Figure 14,

Figure 18 is an enlarged detail perspective view of a catch and lift lever for the rod of the clutch operating mechanism,

Figure 1.9 is an enlargeddetail fragmentary section taken substantially on the line 1919 of Figure 5, I

Figure 20 is an enlargedfragmentary detail sectiontaken substantially on the line 19-19 of Figure 5, looking in an opposite direction to the view shown in Figure 19,

Figure 21 is an enlarged fragmentary elevation of the record magazine,

Figure 22 is an enlarged fragmentary bottom plan view of the record ma azine,

Figure 23 is anenlarged detail ragmentary section taken substantially on the line 2323 of Figure 5, showing particularly the escapement mechanism.

Figure 24 is an enlarged fragmentary sectional elevation taken substantially on the line 24-24 of Figure 5, parts not being shown for clearness,

Figure 25 is an enlarged fragmentary diagramniatic view in plan showing the shifter arm carrying a record, I

Figure 26 is a longitudinal section, partly in elevation, of the shifter arm,

Figure 27 is a bottom plan view of the shifter arm.

Figure 28 is a section taken on the line 2828 of Figure 26,

Figure 29 is an enlarged fragmentary detail sectional elevation taken substantially on the line 29-29 of Figure 19,

Figure 30 is a detail perspective view of the rod of the clutch operating mechanism,

Figures 31, 32, and 33 are detail sectional views taken substantially on the lines 31'31, 3232, and 3333 respectively of Figure 24,

Figure 34 is a detail section taken substantially on the line 3434 of Figure5,

Figure 35 is a detail perspective view of the key for operating the damper,

Figure 36 IS a diagrammatic view of the cirsuit used in the control of this apparatus, an

Figure 37 is a detail sectional view showing the shifter arm supported crank lever in its raised position.

inclusive, it will be seen that my cabinet construction is illustrated to advantage. The numeral represents the bottom'whieh rests on supporting elements 6. Risingfrom the bottom 5 are therear wall 7, the side wall'e8,

' the-sidQwall 9, and the front wall 10. A

further curyed to extend wardly forcommunicating with the socket cover 11 preferably having transparent I as at 13 to the upper edge of ,the'rear wall 7. An electric" members 12 therein is hinged incandescent light bulb 14 is mounted in a socket 15 suitably suspended from the top of the cover' for the purpose of illuminating the interior of the.- cabinet when the reproducer is in operation. The front-wall 10. is

' is removably mounted in the opening 16, the

upper edge thereof being first inserted in the groove 18, so that the lower edge thereof may be rested in the groove 17. The outer end of a horn 2O is flared and registered with the major portign of the opening 16. -The. horn extends rearwardly from the-opening 16, and is then curved laterally and is forwardly-and up-- bracketv 21 of the tone arm 22. 1A conventional sound box 23 is mountedon the free end of the tone arm 22 for laying discrecords placed on the turn tab e 24, which will be referred to more in detail later in the description. Suitable cleats 26 are mounted on thefour walls of the cabinet for supporting a rectangular frame 27 adjacent the upper edges of said walls. An electric motor 28 is suspended from a cross bar 29 .of'thef frame 27, and the armature shaft thereof has a grooved pulley 30,- over which is trained a. belt 31. A speed governor'32 is mountedin the governor frame 33 suspended from the frame 27 and the b81613]. is-

, trained over the pulley 34 thereof. The

governor shaft has an operative connection 35 with a vertical spindle 36 suitably jour! naled in the frame 33 to project slightly above the frame 27 for receiving at its upper end the hub 38 of the turn table 24. The hub is provided with a notch 39 for receiving a laterally disposed pin 40 projecting from the spindle 36, so that the turntable will be revolved upon the rotation ofthe spindle 36 from the motor through the gov ernor. A centering pin 41 rises from the upper end of the spindle 36. Each record 42 is of the disc type, being provided with the usual central aperture 43. In each aperture 43 there is disposed a carrier button. as is indicated to advanta 'e in Figure 11. and indicated generally by the numeral 44. Each 1",e'zin5a by a an.

Referring particularly toFigures 1 to4 carrier button includes a hollow body adapted to pierce the aperture 43 of its record and to be received on the centering pin 41. An outwardly disposed annular flange 46 is provided on the bottom end of'the body while the upper end of said body terminates in-a reduced neck 47, the up rend of which is'provided with a head. Elie further purpose of these carrier buttons will appear later in the description.

The frame 27 isprovided with bracket arms48' and 49 projecting rearwardly from the front railthereof, as may be more clearly seen in Figure 5. The socket 21 for the -tonearm 22 is mounted on an intermediate portion of the bracket-arm 49, and bracket arms 50 which project inwardly from one side rail of the frame 27. A journal bracket 52 depends from the bracket arm 48. FA bracket structure 53 depends from the bracket arm 49, and is provided with a bearing'54. A main shaft 55 is journaled in bearing 52 and bearing 54. Particular at tention'isnow directed to Fi ures 13 to 17 inclusive wherein it will seen that numeral 56 designates a manually operated shaft extending through the side wall 8 of the cabinet and having an operating knob 57 on its outer end. This shaft 56 is journaled in a bracket 58 (see F i re 2) supported'by one side rail of the nme 27 and is formed in sections held together by a coupling 59- fixed on the main section and engageable with the auxiliary section by a Y set screw 60. A main drive gear 61 is fixed portion of the hub 63. A ratchet clutch face 65 is provided on the hub 63 for engagement with the ratchet clutch face 66 on one side of a hub 67 rotatable and slidable on the shaft 56. A ratchet clutch segment 68 is splined as at 69 on the shaft 56 for engaging the other ratchet clutch face 70 of the hub 67. A spring 71. is disposed within the segment 68 and impinges against a shoulder 72 in said segment andagainst the inner portion 73 of the hub 67 for normally holding said hub 67 in an engageable position by the ratchet clutch face 65 of the hub 63. The segment 68 is provided with annular groove 74. --A tensioning lever 76 is pivoted at one end on a pivot pin 75 mounted in a bracket-77 forming a part of bracket arm 48. Adjacent the ,free end of the lever 76 there is provided an upwardly curved portion 78,'adjacent which and below which is disposed a projection .79 for being renates in a downwardly disposed terminal 81. A hook 82 is provided on the laterally on the main shaft 55 for drivin the latter as will be explained later.

disposed end 80 and is engaged by a spring 83 which is attached to a pendant 84 on the inner end of the bracket arm 48, so that the clutch segment 08 is normally maintained in an engageable position with the ratchet clutch face 70 of the collar 67, and also that proper tension is given the spring 71 to maintain the clutch face 66 of the collar 67 in an engageable position with the clutch face 65 of the hub 63. The spring 83 also holds the terminal of the end 80 in the space afforded by the ends 85 and 86 of the disc fragment 87. The end 86 is beveled for engaging the terminal 81 so as to swing the lever 76 to a position for maintaining the clutch segment 68 in an inactive position. A crank 88 extends radially from the hub 67 and has a roller 89 journalcd on its free end. A counter shaft 90 is journaled in the depending portion 91 of the bracket arm 48 and has fixed thereto a star wheel 92 and a heart shaped cam 93, (see Figure 20), which is provided with a plu rality of cam faces. At each revolution of I either the main shaft or the manually operated shaft 56 it will be seen that the crank 88 will be swung so that its roller engages the teeth of the star wheel 92' for rotating the shaft 90 to make active the camfaces of the heart shaped cam 93 in succession. A lift lever 94 '(see Figure 20) is pivoted on the pin 75, andextends rearwardly for the purpose of shifting a record magazine which will be referred to later.

An intermediate portion 95 of the lever 94 rests on the outer periphery of the heart shaped cam 93, while a pin 96 supported by an arm 97 on the lever 94 engages the inner periphery thereof. Thus as the heart shaped. cam revolves, an up and down stepped movement is imparted to the lift lever 94. A dog arm 98 (see Figs. 13 and 15) ispivoted on the pin 75 and has a roller 99 journaled on its free end for engaging between the teeth of the star wheel 92 to maintain it in the different positions to which it has been actuated by the crank 88.

For an understanding of the record magazine, attention is directed to Figures 3, 21, and 22. A pair of vertically extending,

- parallel, and spaced polished rods 100 extend through bracket sleeves 101 mounted on the rear rail of the frame 27. These polished rods 100 extend above and below the frame 27. The bottom 102 extends forwardly from a vertically disposed frame structure 103 having bearings 104 at the top and bottom thereof for sliding on the polish rods 100. A plurality of horizontally inclined shelves 105 are supported on the frame .103 above the bottom 10.2. These shelves 105 are vertiv cally spaced and inclined downwardly and ""rearwardly A bracket arm 107 de ends from one rear corner of the frame 27. A V-shaped counter-balance lever 108 has one end pivoted as at 109 to the lower-dead of the bracket arm 107. The other end of the counter balance lever 108 is off set to form' the extension 110,- on the. terminal of which is journaled a grooved wheel 1'11, forv riding on a track bar 112 fixed to the bottom 102. A pair of books 113 and 114 are mounted on the pivoted arm of the counter balance lever 108 in spaced relation to each other.

supported, therein. A program panel '118 is attached to the bracket member 115 so that a program may be laced thereon and may be visible through tlie transparent members 12 of the cover 11.

A vertically disposed shield. 1 19 has a lateral portion 120 which is mounted on the rear rail of the frame 27. The shield 119 has an intermediately disposed opening 121 through which the numerals on thestrips 122 may be seen as they are brought IintO registry with said opening. Thisstrip 122 is provided with a pair of lateral extensions 123 which are attached to the frame 103, so that as the magazine is moved up and down, the numeral indicative of the recordin the playing position will be registered with the opening 121. thereon a headed bolt 125 which is slidably en aged with the bottom 102, the head being he d in engagement therewith by plates 126.

The end of the lift lever 94 has It will therefore be seen that as the lever 94 is swung by the means heretofore describedv the magazine and the records therein are raised or lowered for the purpose of placing one of the records in a position so that it may be shifted to the turn table, as will be indicated later. The shelf holding the record to be shifted to the turn table is disposed substantially coplanar'with the turn table.

Particular attention is now directed to the mechanism for shifting a record from the magazine. to the turn table and restoring said record to the ma trated to advantage in Figures 5, 24 to 28 to as the outer series, an inner series ofv beveled gear teeth 31 being provided in an arcuate arrangement on the disc between the periphery thereof and the hub 128 and op-- posed diametrically to the series 130. A vertical shaft 132 is journaled in the bracket .53 ad acentthe dlsc 127 ex end ng diametrizine after having .been played, said mec anism being illus- 'inclusive, and 31 and 32. The main shaft a member 158 on the bracket arm 49 concen-.

the upper end'of the shaft 132 there is fixed thereto .a second mutilated gear 135, having a gear segment 136 meshable with the outer. series of teeth 130. The mutilated gears 133 and 135 are disposed so that their gear segments 134 and 136 respectively are'disposed in substantially the same art of a circle described about the axis of t e shaft 132. A head 138 is formed on the upper end of the shaft 132, and has flattened ortions 139 diametrically opposed' to eac other. A

shifter arm 141 has one 'end provided witha air of space apertured ears 142 for straddhng the head 138 so that each will be disposed adjacent one flat portion 139, screws 143 pivoting these ears to the flat portions 139 of the head 138. Thus the shifter arm 141 is pivotally mounted on the end of the shaft 132. The arm 141 is offset as at 144. The freeend of the arm is provided with an L-shaped slot 145, havin an outwardly flared entrance end 146. A ar 147 is slidableon the bottom face of the shifter arm 141 by means of screws 148 and the headed element 149 which depend from the-arm 141. The outer end of the bar is notched as at 150, for registering with the entrance portion 146 of the L-shaped slot 145. As the shifter arm swings. over a record in the magazine as will be explained later, the neck 47 of thewarrier button 44 engages in the notch 150. When the bar 147 is slid outwardly of the arm 141 in a'manner which will be explained later it will be seen that the neck of the button is locked in enga ement with the innermost recess of the 5 0t 145. An arcuate bracket 152 is mounted by trically in relation to the shaft 132 and has thereon an arcuate rail 153 and an arcuate rail 154. The are of the rail 153 is smaller than the arc of the rail 154. Both of these rails. however, are concentric in relation to the shaft 132. These rails are circumferentially spaced as is indicated to advantage in Figure 25. and the adjacent ends thereof are curved laterally in opposite directions,

it engages a carrier button as previously in-- dicated, and then the offset end 159 engages the off set end 152 to ride on the outside of the rail 154, thereby pushing the rod 147 outwardly to lock the button in engagement with the arm as. previously indicated. As the arm returns to its initial position, the

ofiset end 159 engages the end' 157 so as to cause the offset end 159 to ride on the inside of the rail 153, thereby moving the bar 147 inwardly to allow the disengagement of the shlfter arm from the record carrier button.

An arcuate track 160 is supported on the member'158 concentric with the bracket 152 and inside thereof. An intermediate portion of this track is "inclined upwardly as may seen, for instance, in Figure 24. In the raised portion of the track 160 there is provided a detent or recess 161 (see Fig. 5). An adjustable foot 168 in the form of a threaded. member pierces the am 141 so that its lower end is ada ted to ride on the track 160. A hook 163 Is provided on the arm 141adjacent the foot 168, and a similar hook 164 is provided on the head 138 so that a spring 165 (see Figure 24) may be engaged therewith for holding the arm downwardly with the foot 168 in enga ement with the track 160. A screw threa ed member 166" is engaged with the arm 141 to depend therefrom adjacent the foot 168 for thepurpose of being engaged by lifting means, referred to later.

I As the description hasv thus far progressed, relative to the shifting mechanism it will be seen that when the main shaft 55 is placed in rotation, the disc 127 will be placed in rotation therewith so that as the inner series of teeth 131 engage the gear segment 134 of the mutilated gear 133 the shifter arm will be moved from its initial position shown in Figure 2, first to a position shown in Figure 25 for gripping and clamping the carrier button 0 the record on the shelf of the magazine located within the throw of the lever. As the shifter arm continues to swing toward .the turn table it will be raised by the foot- 168 engaging the inclined portion of the track 160. Continued movement of the shifter arm will cause the foot 168 to be brought over the recess 161 so that the foot 168 w1ll drop thereinto, thereby causing the free end of the shifter arm to be lowered for depositing the record on the turn table with its carrier button engaged over the centering pin 41 of the s indle 36. As soon as the record is deposite on the turn table, the gear segment 134 will have moved out of mesh with the inner series of gear teeth 131. As will be explained later at this point in the operation of the mechanism the main shaft. will be stopped. After the record has been layed and-the main shaft is again placed inoperation as will be explained later, it will be seen that the outer series of gear teeth of the disc 127 will be brought into mesh with the gear segment 136 of the mutilated gear to rotatethe shaft 132 in an opposite direction from that previously indicated so that the shifter arm ma be returned to its initial position during which operation it will replace the record

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