US1236893A - Start and stop device for talking-machines. - Google Patents

Description

c. E, woons. I gnam nu soP DEVICE 'f o'xnxmq nAmlEs.

y APPLICATION FILED SEPT. 9. i913.'

1 Patented Aug. 14. 1917,

I 5 31$||ETHIIT 2. l

y reproducer, is'advanced vacross the faceof a t sTATEs PATENT oEEIcE.l l

CLINTON E. Woons, or BBIDCEPQET, CONNECTICUT, AssICNon To AMERICAN Gaarne;

:PHONE COMPANY, or BRIDCEPORT, CONNECTICUT, A CORPORATION or WEST vra-v GINIA;

START ND-STOP DEVICE FOR TALKING-MACHINES.

Application filed. September 9, 1913. Serial No. 788,827.

' Bridgeport, Connecticut, have invented a new' and useful Improvement in Start and Stop Devices for Talking-Machines, which `invention is fully -setforth in the following ,Y speci icatiqn.

This invention relates to automatic stop "i" mechanislmand especially to mechanism for -10 automatically stopping a talking machine,

Vand also, preferably, automatically starting 'l the same, being designed more particularly V for .use in connection withthat class of talking machines in which a tone-arm or other tu ular sound conductor, together with the disk record in the act of reproducing said records; an .object in vieWf-is to provide av talking machine with` means whereby the 'machineshall be anton'iatically started when the operator 'placesthe .reproducer and tonearm in position to.. commence reproduction,

x ment acrossthe. face of the record, or when and which shall'also automatically stop theV motor when, for any reason, the reproducer and tone-arm shall cease their advancemovetheir speed of advance shall be materially varied,.as, for instance', decreased below a y en;

predetermined limit. For example, when the reproducer reaches the interior end of the spiral record groove (by which groove it, is advanced across the record), the advance movement of the rep'roducer andthe tonearm ceases, and itis one object ofgthe present invention to stop the motor at the same time that the reproducer reaches the end of the record.

` Vith this object in view, the preferred em! bodimcnt of the invention consists, (in a i402 A rotative element, as the record, and the usual talking machine) of a motorfor driving a or any suitable tone-arm provided with any desired reproducer, with a stop mechanism such as means controlling the application of power to the motor, which means is operative to permit the supply of -power to the motor' whilel thel tone-arnris moved by the y record, but `which automaticallyacts to cut@ oli' power from the motor-when the tone-arm vceases to advance, or its speed of advance is materially variethras, for instance, decreased below a predetermlned vllmit. Thus for eX- placed in position to begin therepro'duction of the record2 said switch being maintained 1n closed position topermit current to pass to thefinotor so long as the tone-arm continues to advance across the record, 'but being automatically opened to cut off current from the motor when the tone-arm ceases for any reason to advance across the'face of the record, asV it would cease, for example, whenl speincation uf Letters Patent. Patented Aug. 14, 191

it reaches the end of the interior convolu tion of the -record groove. It will thus `be seen that the closingand opening of the swltch to start and ,stop the motor is controlled by the tone-arm, thus avoidinsgthe annoying necessitvfheretofore existing for the operator to iist'throw the switch and l supply power to the motor; then to place the reproducer in position; and, when the reproduction'has ceased, to open the switch to stop the motor. By the'use of the present invention, the operator need pay-y no attention whatever to the switching on and oi of the current, since these functions are automatically performed when thetone-arm is placed 1n position on the record and when it ceases to advance.

A machine embodying the invention -is provided with a rotating element adapted to carry the record, and a traveling element in the Vform vof a tone arm and reproducer adapted to be 'propelledby the rotating elevment through the engagement of the needle of the reproducer withthe'grooves of the record. .A suitable motor is provided for,

driving the rotating element, and a suitable mechanism is p'rovlded kfor controlling the movement of the motor and the rotating element, this mechanism serving to automatically stop'the said movement when the ad' vance of the traveling elementacross the rotating "elementv ceases, andl preferably also serving to start the said movement when the traveling element is moved Ato a position ad jacent the periphery of the rotating element. vThe start-andstop F mechanism preferably comprises a devicewhich acts directly on the m'o'tor, serving to'contiol the input of power thereto, but it will be understood that -the invention is not limited to a start-and-stopv device of this form and that wide variation ma be made in this part'of the structure wit out departing from the spirit ofthe in-` vention. i

The inventive idea involved- 1s capable of receiving a varietyof mechanical eXpressions, one of which, for the purpose of illusthe invention,"is shown in the acconipanyin drawings, but' it is to vbe exressly un erstood that such drawings are or the "purpose 01E illustration only and are not ldesigned to de ne the limits of the invention, reference claims for this purpose.

- In 'said drawings-'- Figure 1 is a top plan view lof the auto-i` matic start-and-stop mechanism constituting the present invention with the switch closed; and Fig. .1a a like view with the switch open; s.

Fi 2 is adetail side elevation looking in the direction of the arrow 2 in Fig. 1;

, Fig. 31s a detail side elevation looking in 4 the direction of the arrow 3 in Fig..1;

Fig. 4 is a perspective view of certain of the parts; and

Fig. 5 is a broken perspective of a further detail. i

Referring to the drawings, in which like c reference numerals indicate corresponding parts, 4 is a motor, vrer'erably electric; 5 .is a switch of any suita le or desired construction controlling the iow of current to said motor, this switch constituting the start-andstop device above referred to; 6 is a toneoperatively arm of the usual or any suitable construcdesired4 tion; and 7 is a reproducer of any form having-the usual needle for engaging the convolutions of the record groove of the well-known disk form of record.- The said Atone''arm and reproducer constitute the aforesaid traveling element, and the said record with its lsupportV constitutes the aforesaid .rotating element 'which propels the traveling element. Y

A controllingv means 1s provided for the start-and-stop device, in this 'case the switch 5, this controlling means'comprising 1n part an actuating mechanism which will now be described. -A shaft 8 driven by the motor is connected,as'by a worm 9 and worm-gear bearings 12, 12', in the frame of the motor. Keyed to said worm .shaft 11 is a ratchet wheel 13 which is in position .to be engaged byv a pawl 14 pivotally connected, at 15, to

harm 17 the projecting end of the switch 5. Said awl vmaybe actuated either Vby gravity or y a-spring 16, Fig. 2, to cause it to engage vthe ratchetwheel 13.",and when it .soe'ngages n of the shaft 11 said ratchet, the revolut o pull the switch acts through the 'p'awl l the position being liad to the appended rent turned 'onto the motor.

- element.

10, with 11.-worm shaft 11 having sown. in las .1u

and thereby open the switch and prevent the f passage of current to the motor, saidopening movement ofthe switch being the tension of a. spring* (not shown) within the switch, this .be a usual or well-lmown form of switch. enthe pawl 14 is freed -from the ratchet wheel 13 the switchis closed '(see Fig. 1) under the action of its spring and current passes tothe motor. It will thus be seen that when the paw'l is in enga ement with the fratchet wheel, the' switc is open, the current cut' o, and the motor brought toastop, and vwhen the pawl is disengaged from the ratchet wheel, the switch -is automatically closed and the-cur- The controlling means for the start-andstop device also comprises ntwhanism whereby the pawl 14 will be arglromatically released from the'ratchet in order to start the.

motor and automatically brought into en.- gagement with the ratchet to stop the motor (all under the control (of the tonearm) and this mechanism will ynow Ibe dei scribed. It comprises two movable members which normallyy engage each other and travel synchronously. One of these members is connected with the motor and the rotating element by means independent of' the start-and-stop device, 4,the said means preferably being positive in'its action. The other member is driven from the traveling As shown, thetone-arm is mounted to turn around a vertical'axis a horizontal plane and. has projecting radially-there:v`

from, preferably in a plane below the tul; 'table of the machine, alug or arm 18,'F1g2` 1, to which there is pivotally connected a link 19, the .other end-of which is pivotally connected, at 20, to one arm`21 of a bellcrank lever pivoted, at 22, to the framework of the machine and having its fother arm 23 extending forward and in close proximity to the worm shaft '11, being provided on its extremity adjacent said worm shaft 11 with la reduced knife edge 24, Figs. 1 and 3. Also l11o y knife edge 24 ofv the lever arm 23 and 'is provided, with a notch 31 for engagement l with-saidknife edge, as clearly illnstrated in full lines in Fig. 3. The extreme Afori ward-end'of the latch 30 is provided von its under side with a cam face 32 for a purpose which will be hereinafter described.

The .said arm 23 'of the ,first lever constitutes a movable member con?.`

nected with the ytone-arm or traveling element, and the said arm 27 of the l*second bell-crank lever constitutes a movable member connectedwith the Vmotor or the rotatin element. y y

ivoted at 33, Fig. 2, to any'suitable support is a lever 34 whose right-hand end, as

shown inl Fig. 2,

by the cam 26 on the lever armQ, and the left-hand end of said lever 34: is curved, as shown at 36, and is positioned undera lug 37 projecting laterally from the side'of the pawl 14, so that when vsaid lever 34 is depressed at the right of Fig. 2 by engagement y l of the cam 26 With the anti-friction lroller 35, the curved end 36 of said lever is elevated, thereby lifting' the pawl 14 out Iof engagement with the ratchet 13, and when the cam QG'is out of contact.. with the antifriction 'roller 35, the curved end 36 'of the lever 31is permitted to fall, thus permitting the pawl 14 to come into engagement with 'the ratchet 13. Y y

`The pitchA of the'wo'rm 'shaft 11 is such i that itl advances the tooth 28 and with it the lever arm 27 along said worm lshaft 11 at the same speed as lthe tone-arm advances 3()` the knife-edge 2li when said tone-arm is bei'ng moved across fthe faceof'the recordby the convolutioi'is of the record groove, and sincethe knife edge 24 and the latch 30 with the knife edge in the notch 31 advance simultaneously and at the sainey rate of speed, it isvapparent that the knife edge cannotyescape from the notch 31 as long 'as the two continue to advance together. W'hen, however, the tone-arm ceases to advance, as would be the case when the reproducer needle has reached the interior endy of the rec- 4ord groove, the revolutions 'of the worm shaft 11 continue to advance the tooth 28 and with it the latch 30 until the, latch-notch 31 is advanced away from the knife edge 424, whereupon the revolutions of the worm shaft 11 acting upon the tooth 28 serve to rock.the latch 3i() on its pivot 29, throwing it up free from the knife edge 2aand also simultaneously disengaging the tooth 28 from' the worm.' As soon as the tooth is thus disengaged from` the worm, a spring 38,- Fig. 1, acts to draw the lever arm 27 back (tothe position shown Vin Fig. 1a)r against any suitable stop `39. At the commencement of the operation or engagement of the tooth 28 with the worm 11, the cam 26 has impiiiged upon the roller 35 on the lever 34, and elevated the kend of the lever under the paivl `11h thus lifting the pawl out 'ofengageinent with the ratchet ,'13 and per- 1nit.ting-tlie switch to `be closed under the influence of its spring to turn on thewcur'- rent to the motor, and as long as the tooth;Y

28 Icontinues to advance along the Vwornixf.'

is'provided with `an 4anti-` friction roller 35 ina position to be engaged' yto take place before-the niovenienlts .l

ultimately result inthe aetiiLLtLOllf. Iof vthe shaft 11, the cam `2.6 continuesithiistel-act upon the lever 34 and maintain the curved end thereof, and with it tlie pawlyll, in` elevated position. i Butfas soon astthefspring 38 has retractedthearm Q7 andL the` tooth 9.8, when it has become freedfromlthe worm then starts to retract under yfthe influente of" the switch spring ,and "again falls lintercontact with'the next tooth on the ratcliet13,

thus maintaining the s witclrin openposition without anyundue or breakingstrainy 1 upon the parts.

l It will be apparent fromthe-foregoinglil scription that the controlling means furthe startend-stop device becomes innnediatehv active upon thestolnping ofthead'vaiice they tone-aigu. or Itraveling element, 'it being unnecessary for any preliminary -nioi ,A

stop device.4 i h f N A w It will also be apparent that ythe `controlrhicli ling means for the start-andfstop"device `will become immediately aetive upon a. material variation of the speed `of advance' of the 'tone-arm-vor traveling element, such as a nia terial decrease in its e'speed of advance, for in such event', tooth '12S `may advancelatch 30 relatively to knife-edge until latchnotch 31.is moved away from rthe knifeedge, whereupon the relatedparts `will operate as above explained, to yeifect thestopping of the machine. 4 V,

lVhen the parts have thus been brought' to a stop by the opening of the switch (see Fig.

1?), the lever arm 23 witliits knife edge '2l 'and the lever V2T n'ith'its tooth will occupy the position `indicated in full lines in Fig. 1a, but when the operatortakes hohl of the tone-arm and moves it from the cen-` tral portion -of the record outwardlytd its` inoperative position' (which latterposition 18 acting through the link 1l) on the lever arnr 21 serves to retract the levernrnr 23 to the dotted line position, and tlie'l the p knife edgepa ssesbeyend' the lo\ is shown in dottedlines in 13") the lug immediately falls. .When the ytone-arm ris gspring df the' switch closes the switch and VV starts'the motor, ,this occurring at the inetant when the to0th.,28 comes in contact .1 withV the commencement ofthe wormen the shaft 11, asshown' in Figs. 1 and 3. There- .2.; upon 'the tone-arm andthe two lever arms 2 3 .27 are advanced together as before aIt observed that if the tone-arm stops orf-materially decreases .its speed at an timeor at an p Ace while in contact wit the record, w ether because it reaches the a end of the record or forany other reason, 'theworm 1 1 willf continue to advancethe tooth 28, release the latch 30, and permit the lever arm 27 to be returned 'by' they spring 38 against the stopV 39 and the cam 26 tobe .30 thrown out of contact vwithdthelever 34, v thereby permitting the curved end 86 of the lever to all and with it thepawl 14, and the to be opened as just hereinbefore dey It will also be observed that the lever arm 1' 27, through the medium of-'the cam 26, acts to absolutely control the-switch 5 and that the position-0f said lever arm 27 determines whether ory not 'the switch 5 is closed to turn on current tothe motor, or is open to cut oli.

' said current and stop the motor. It will alsobe observed'that as long as the tone,- arm 6 vis being advanced by the record, the .leverarm 23 and the lever armv 27 advance as one member and serve to leave'the switch closed, butl that-the instant the tone-arm e ceases to advance or itsspeed of advance is materially decreased, the two lever arms 23 and 27 no longer act as a unit, since the lever arm vv23 stands still, or is relatively retarded, while the lever arm 27 advances, which differenceA results in disconnecting vthe two .lever arms'and freeing the lever arm 27 from the control of the worm 11, permittlng the l"lever arm 27, .which'action results in the engagement of the pawl 14 with the ratchet and the opening ofthe switch by the power of the motor itself. The switch being open, its ring is notA strong enough to revolve the s aft 11, which shaft is locked agalnst such action by the engagement of the wormgear. 1 0iwith the Worm 9 on the shaft 8.

' Whlethe invention hasbeen described.

with "-particularity as to the construction, proportions, and relative arrangeriieii j of the parts," it is not to be understood 4th by the operator inthe direc-f' fappended claims, without departing from the invention.

thea-curved end 36 tive upon the stopping of the traveling elevby the rotating element.

lSpring 38 to supplementallyH move he said la normally-closed switchcontrolling the pasthe invention is limited to such construction, proportionsand relative arrangements, smc'e these may be varled within the limits of the' 17o What is claimed is l 1. The combination of amotor, a rotating element driven thereby, and a traveling elcment propelled by the rotating element, with means for cutting off ower from'the motor and lmeans 'moving wlth the traveling clement; and rendering said first meansopera- 8 0 ment. s

2. The combination of a motor, a rotating element driven thereby, a relativelyv traveling element propelled by the rotating elelment, motor-actuated means lfor cutting off power from 'the motor, and devices controlled by the travelin element and holdin'g said motor-'actuate means inactivedurmg the movement of thetraveling element i 3. The combination of a motor, a rotating y element .driven thereby, and a relatively traveling element propelled by the rotating element, withl motor-actuated means for cutting oli' power from the motor, a device holding said motor-'actuated means out of operative Irelation with the motor during the movement of the traveling element by the rotating element, and means freeing said motor-actuated means when the' traveling element ceases to advance 'across the rotating element whereby power is cut off .from the motor when the traveling element ceases to advance. y

4. The combination of a motor, a rotating element driven thereby, and a relatively traveling element propelled by the rotating element, motor-actuated means for cutting oii power from themotor but normally out of operative relation therewith, a motor-- driven member-holding said motor-actuated -means out of operative relation with the motor durin the advance of the'traveling element by t e rotating element, vand a member actuated bythe travelingelement holding said motor-driven member in operative rela- Vtion`,with the motor whilethe traveling element is. propelled by said rotating element.

5. The combination of an electric motor,

120 sa e of current thereto, a rotating element drlven bythe motor, and a'traveling element propelled by the rotating element, with two members, one of which is actuated by' t e motor and the other by the traveling element, said motor-actuated member being held vin operative! relation with the' motor by the' member that is actuated by the' traveling 'element during ment, and motor-actuated switch-opening means held out of operative relation with the motor by said motor-actuated member duiing the advance movement ot' the traveling element. v Q i 6. The Vcombination of a motor. a -iotating element driven thereby, and a traveling elecontrolling said actuated memberfivlien the rotating element ceases to advance the traveling element. l

` 7. `The combination of `a motor, a rotating 4element driven thereby, and a traveling element propelled bythe rotating element, with av device controlling the application of power to the motor, means for connecting .said device to the motor whereby it is actuated to ciit` oit` power .from tlie motor, restraining means normally holding said lastnamed means vont ot'opeiative relation with the motori. a motor-driven member controlling said restrainingmjeans. and a member driven by the traveling element holding said motor-driven member in operative relation with the motor wli1le`tlie traveling element is advanced bythe rotating element but reeingsaid motor-drivenmember when the ,traveling element ceases to advance whereby the power is cut off from the motor when the rotating elementv ceases tofmove the traveling element. Y

8.. The eombination of a motor, a rotating element driven thereby, a traveling element propelled by the rotating element, 'a device controlling the application of power to the' motor, connections. between said device and thefmotor for cutting oil' power' from the motor. 4motor-controlled means holding said connections inoperative during the movef ment of the traveling element by the rotating element, and means controlledby, the

.traveling element and, in tiirn Acontrollir'ig `said motor-controlled means.

9. The combination of a motor, yafrotatingu element driven thereby, and a traveling ele- "f1 and al levery connected to the ntrave Vi-inent and to said'motoroperated lever when; .#the-traveling..elementfisadvanced by the ro- "ment propelled by the rotating element, with a device con-trolling the application of` power `toi-the motor, connections between saidjde- `vice and the `motor `for operating thefdevice l' to cut oit power from the motor, "restraining mea ns normally holdingv said 'connections out .of operative relation vwith themotor, a `lever actuated ,by the `motor and holding. s aid restraining devicesr` in, lrestraining position,

ing elel'ating element and actingto hold s aid n iotor-operated lever in operative relation with tlie 'motor during the movement ofthe traveling elementbut permitting said Inoi tor-operated lever to be 'disconnected from the motor when the `travelingelement` ceases to advance, and means shifting saidumotor operated lever to free said restraining means when the motor-operated lever is disconnected from said leverjoperated by the traveling element. y

10. The combination of a motor, a rotat- .ing element driven thereby', a traveling element propelled' by the rotating element, and

a device. for cutting oli'l 'powerfr'om'themotor, two independently movable members,-

one of which is "moved by the motor andthe other by the traveling element, andmeans rendered operative by the stopping j of one ,of said movable members to render said motor. p y 4 i i l1. The combination of'a motor,.and a depower-cut-off device operative to stop the vice for cutting o f power therefrom,'with a` vrotating element driven by the"l motor and. a

traveling element propelled the rotating element, two 'independently movable members, one of which is'moved bythe motor and one by the travelingv element, and means rendered' operative by ,tlie'stopping ofi-said member operated by. the 4traveling element to render the power-cnt -oi .device Voperative to cut oif power from the motor;

l2. The combination of amotor, a device tating element drivenby the motor, and a travel-ing element propelled by; the `'rotating element, with 4two independently movable and one by the travelingelement, means connecting the lever operated bythe traveling element, to rthe motor-operated. lever. while the traveling element is moved by the 'for cuttingoi" power "from the motor, aroi levers, on'e of which is moved bythe motor rotating element but automatically discon- *necting said 'levers' .whenthe movement' of said traveling element ceases," and means controlled by the motor-operated lever and permitting said power-cut-o'device .to be operated to cut off powerffrom the motor when said levers aredisc'onnected," y

13. The combination of a motor, `a` "owercut-oli' device therefor, a rotating. ement driven by the motor, and a traveling ele? ment, with 'two inde endently movable'members, one of which isactua'ted bythe motor and the other by .they traveling element,

y.means connectingfsaid members' together so `that,A they move= simultaneously; when the traveling element is vadvanced by the rotat ing element bufv. a`cti1lig' automatically tofdisconnect said members lwhen the ytraveling element ceases' -to advance, and, means yindependent of the lmoto'r for reversing the movement of 4Vsaid motor-actuated member when members f are I disconnected i and rendering. said "power-cuteoi! device opera- ,Ative to cut o'. power `from the motor. 'p

l 1l. combination with a rotating element and a. traveling element` propelled thereb of a motor-driven stp-ldevice, and contro ling means therefor comprising mo- .tor-driven means actuated independently o l the stop deviceand automatically-rendering v lo,

uthereby,

saidstop device o rative upon 'of the travelin e ement.

15. The com ination with a ment and a e stopping rotating eleltraveling element propelled of a stop device and controlling means therefor comprising two members normally moving -in continuous engagement with eachother and separately actuated independently ofthe stop device -by the said rov-tating and traveling elements respectively, v

said members automatically disengaging -upon the stopping of said traveling element l s to render said stop device operative.

16. The combination with a rotating ele- `ment and a traveling element vpropelled thereby, of a stop mechanism for the rotatin' element comprisin a member positively driven therefrom "`an a member continuousl actuated by the traveling element, whi e so actuated continuously engaging the Iirst said member, and means controlled by one of said members for holding the `stop mechanism inactive, said members automatically disengaging'upon the stoppingof said traveling .e ement to render lsaid stop mechanism active.

.17. The combination-'with amotor, a. mo-- vtor-driven rotating element anda traveling element propelled by the rotating element, of a stop'device, a motor-driven member holding said. stop device out of operation duringthe` advanceof the traveling element, anda member actuated by the traveling element holding said motor-driven member in operative relation with the motor While the traveling element is advanced by the roi of which is actuated by the motor tating element.

18. The combination with a motor, a mo- `tor-.drivenrotating element and a traveling element propelled by the rotating element, of tW'o synchronously-moving members, one and the otlierbythe traveling element', saidmotor-- actuated member being held in operative relation with the motorby the member,d that l is actuated bythe traveling element during the'advance-movement vof the traveling ele'- tuated member control .and a member actuated by the traveling element, and a motor-actuated stop device held out of operative relation with themotor by saidmotor-.act'uated member during the advance movement of ,the traveling element.

19. The combination with a motor', a 1n`otor-driven rotating element and a traveling element propelled by the rotating element, of -a motor-actuated stop device, a motor-acment and controllingl the' said motor-actuated member. vWhile :ing said motoring the stop device,I

e traveling element is advanced by the rotating element but free-I.

actuated member' when the rotating eleme eling element 20. The combinati to advance the trav-` rml tor-driven rotatingelement and a traveling element propelled by'pthe rotating element,

of a stop device, connections between the" inotor and the said device for'actuating the latter, a motor-'controlledmeans holdingsaid connections inoperative duringthe. 'advance of the traveling element bythe rotating element, and means controlled by the traveling element and in 'turn controlling said motor-controlled means.

21. The combination with a. motor, a sto device, a motor-driven rotating element 'an a traveling element propelled by the rotating element, of -two independently movable levers, one of which is moved bythe motor and one by the traveling element, means connecting the lever operated by the travelingV 'element tothe motor-operated lever while' the traveling element is advanced byfthef rotating element but automatically disconnecting said levers when the advance of said traveling element ceases, and means con- I trolled by the motor-operated lever and caus- Ving thestop device to e operated when said .levers are disconnected.

22. The combination with'a. motor, a stop device, a motor-driven rotating elementand Aa traveling element propelled by the rotateling elementceases to advance, and means independent of the motor for reversing the movement of said'niotor-actuated member' when said members are disconnected rendering the stop device operative.

23. The combination with.. a rotating element and a traveling element normally 4proand pelled` thereby, of a start-and-stop deviceand controlling means therefor actuated independently thereof and automatically; serving to causethe said device to stopthe rotating element upon the stopping; of the vtraveling element and to cause the said' deviceto start the rotating element upon 'movelneiit .of the traveling element to a position periphery of the rotating eleadjacent the ment. f

2-l. The combination with a nient and a traveling element normally propelled thereby. o'f sta'rt-and-stop mechanism' sei-vingt()'automatically stop the rotating clement upon the Vstopping of the traveling element and to automatically start the rotat`v ingelemeutupon the movement of the travrota-ting lele- 'i i of the-traveling element nwardto its initial cling element inward to itsinitialposition from a position outside. the periphery of the rotating element.`

A 25.-I`he combination with a motor, a niotor-di'iven rotating element and a traveling .V element normally propelled by the rotating element-g of mechanism automatically servleiyl of the rotating elementi 2 6. The combination 4with an electric'inoingto cutoff power from the motor upon the stopping of the' traveling element and to admit power to the motor upon movement position from a' position'outside the periphtor, a motor-driven rotating element and a traveling elementnormally'propelled by the rotating' element, of' a switchl in the motor lcircuit-and controlling means for the switch automatically .serving to open'the Switch upon the .stop ing of the traveling element and to close t e switch upon movement o f .the traveling element inwardto its initial positionfrom a position outside-the periphery of the rotating element.

' 27. The combination with" a rotatingele 4ment and a traveling element 'propelled' serving to automaticallystop the rotating .:ele'xnent upon the` stopping of the`traveling element and to maintain 4it idle when the' traveling element 'i's moved outward to its extreme', position and to automatically start therotating 'element upon'movement of the traveling element inward. 'from its outer position. I A 28. 'lheicoinbination with a motor,a rota-ting element driven by the motor anda Atraveling element propelled-by the rotating element, of a 4start-and-stop mechanism :iutoinatically serving to'cut oi power from the motor-upon the stopping of the traveling element and to keep the power cut oi when 'the 'traveling element is moved outward 'to i tor, a rotating element driven by" the motor its extreme position'and to admit power to the motor upon movement of the traveling element inward from' its outer position.-

29. Thecombination with-an Aelectric moand' a traveling element propelled 4by the rotating element, of a switch lin the motori circuit'and controllingmeans for the switch automatically serving to open the switch 'upon the stopping of the traveling element and to maintain, the switch open when 'the' traveling element ismoved outWard'to its extreme vposition and to close the switch upon movement of the traveling element in'- .ward from its outer position.

30. The combination .with arotating element and atraveling element propelled thereby, of a normally inoperative stop device or the rotating element. actuating means' for the' stop device 'autonia'ticall Y tending to become operative. and means de.-

pendent on the continued 4movement of the tuating means inoperative and adapted upon subsequent manual movement of thetraveling element" inward from its outer position to release the actuating-means and permit the-stop device to become inoperative.

` 31. The combination with a rotating ele- 4traveling element for 'holding the said acmentand atraveling elementnormally pro- 'i pelled thereby. of mechanism serving to auto i-atically stop 'the rotating elementupon the rotating element ceasing topropel the traveling elementjand to automatically sta rt the rotating element upon movement ofthe traveling' element inward from a position outside the periphery of the rotating element. i g 32. The combination with a rotating element and a` .traveling element. propelled A i thereby, of a normalliy inoperative stopdevice for the rotating element and .controlling means for the stop device comprising4 a ratchet wheel rotatable with the. rotating ele` 'automatically engageable with 4the ratchet Wheel, an operating connection between the `,p awl and the stop device, Liever forhol'dment, apa-wl automatically engageable with the ratchet wheel; an operating connectionbetween 4the pawl and the stop device. and y90` ing the pawl out of engagement' 'with the ratchet wheel, andmeans dependent'on the continued movement of the traveling'element for holding'the lever in its-pawl-engaging position, the said means being adaptedV Yupon subsequent manual movement of 'the trav'eling elementto restore thelever to its .pawl-engaging position.

3 4. The combinat-'onwith a' rotating'clcnient .and a. traveling element, of a'stop dcvice, a. member movable .with the' rotating 'element and controlling said stop device 'a pivo'ted latch on lthe said member; and a member movable with the traveling' element -and while so moving engaging the latch.

thereby causing the first said membri-to hold the stop device inoperative. H

35. The combinati-on with a retailing clement and .a traveling clement.' of "a screw Vmovable with the rotating clement. :r latch engageable with thesc'rw. a movable member to which the latch is'pi\oted."a stop dcvieeheld inoperative b'v the said member. while the Vlatch engages 'the screw. and a member movable with the traveling element and whilesomoving cngagingthe latch to hold it'inegagenient with the screw.

36. The combination with a rotating element and'a travelin element, of a stop device, a screw-movab e with the lotating ele' 4'element driven thereby,and'a traveling ele- 1 """melit propelled'by the rotating element, with 'f nieanscontrolling the application of power A.to the .m1otor,' 'a member controlling-saidf means, and a member actuated by the travel- 'f 20 ing element controlling said first-named member while the traveling element is moved wby the ro ting element but freeing said first-named mber when the rotating elementceases to alvance the triiveling element. 38. The 'combinatmn with a' motor, a motor-.driven rotating element and a travelingelement normally A p r-,opelledby the rotatv mg element, of mech'amsm'-aptomatically servngto out oil power from'thenotor upon' vso' the stopping-of the' traveling element and to --admit power to the 'motor upon the movel @mentof the. traveling element to a adjacent the periphery of the rotating ele- Y ment.

position .39.l The-combination with a rotating element and a traveling element propelled thereby',-of two-members moved as a unit I by said elements'respectvely, other Ameans' moving one of said members lindependently 40 of the other uponthe sto ping of one of said elements, anda stopV evice controlled 4 by said last-namedmember.

. 40. The combination with 4arotatixig element and a traveling element propelled thereby,'of 'two members moved 'as a unitiby said elements respectively, other means moving one of said members independently of -the other upon a decrease in speed below a predetermined limit of' one of said elements,

' members decreasing below a predetermined and astopdevice controlled by said lastnamed member.

` 41. The combination with a rotating element and a traveling element propelled thereby, of two members moved as a unit by 56 said elements respectively, other means movngone of saidmembers independently of the other upon a predetermined variation in speed of one of said elements, and a stop device controlled by said last-named member.

60 42. In combination 'with a rotating-element and a traveling element propelled thereby, of means moving with said traveling element, means rotated with said rotating element, stop mechanism, and controlling 6b, dem therefor'comprising a, member notated member while the traveling element is mally engaging both of said means and supplementarily moved independently thereof.

43. The combination of a motor, a .rotating element driven thereby, and a traveling element? propelled 'by the rotating element, with means ffor cutting off power from the motor, Aand means movin-g with the traveling element and rendering said means operative upon the speed 0f the traveling element decreasing below a predetermined limit. g 44. The combination-of a motor, a rotating element driven thereby, and a traveling element, propelled by the rotating element, with means for cutting ol' power from the motor, and means moving with the traveling element and rendering said means operative uDo'nthe stopping of said traveling element.l

45. The combination with a. motor, a

-motor-driven rotating element and a traveling. element propelled by the rotating element, 8 5

. of a motor-'actuated stop device. a Vmotoraetuated' member controlling Saidstop device, and a Amember actuated by thetraveling element and controlling the said motor-actuadvanced normally by the rotating member but freeing said lmotor-actuated member when the speed of said travelingr element decreases below a predetermined limit. y

- 46. The combination with a motor, a mo- 95V tor-driven rotating 'element and al traveling element propelled by the rotating ele- 'ment, of a motor-actuated stop device, a motor-actuated member controlling said stop device, and a member actuated by the traveling element and controlling the said motoractuated member while the traveling element is advanced normally by the rotating member but'freeing said motor-actuated member upon a predetermined variation in speed of said. traveling element.

47. The combination Aof a motor and a device for cutting off. power therefrom, with a rotating element driven by the Imotorand a traveling element propelled bythe rotating element,'two inde endently movable members one of which 1s moved by the motor and one by the traveling element, and means rendered operativeby the speed of one of said limit to .render the power-cut-oi device operative to stop the motor.

4,8. The combnationof a motor and a device for cutting oi ower therefrom, with a rotating element driven. by the motor and a traveling element propelled by the rotating element, two independently movable members, one of whic is moved by the motor -and one by the traveling element, and mea-ns rendered operative by a variation inspeed 12E of one of said members to render the powercut-0E device o erative to stop the motor.

49. The com inationwith a rotating element and a travelin element propelled thereby', ots motor-driven stop device, and 134 Stop device controlling .means `therefor comprising a motor-driven means actuated independently of the stop deviceand automatically render-X ing said stop device operative upon the speed of said traveling element decreasing below a predetermined limit.

50. The combination of a motor, a rotating element driven thereby and a traveling element propelled by motor, and means moving with the traveling element andrendering said means operative upon a predetermined variation in, speed of said 'traveling element.

51. The combination of a rotating element and a traveling element propelled thereby, with a. motor-driven stop device and controlling means therefor comprising a motordriven means actuated independently of tlie Vstop device and automatically rendering said the rotating element,

Withmeans for cutting off power from the' member, and means lmotor and means inovingjvitli tbe traveling o element and renderingsaid means operative upon a predetermined variation in the speed of the traveling element.

54. In combination with arotating membei'1 operating mechanism therefor, and a traveling member, a stop member, means adapted to llavemovement with the travelf ing member and arranged to affect the Stop having operative relation with said last-mentioned means Whereby' said means is given asecondary move. movement of the travelf` ment when normal ing member is prevented, so that the stop member is operated.

In combination, a motor, a traveling element, a member moved by said motor, a member 'moved by said traveling/element, a stop device controlled 'by one of said memn bers, means coacting with both of said mem berszivhile said traveling element continues its normal travel, and means supplementarily moving one of said members to effect the actuation of saidstop device upon cessation of tbe normal travel of ment.

In testimony specification in tlie ing Witnesses.

said traveling ele presence of two subscribrfirmaron Weens.4

Witnesses:

.leem R. Plum, Joint S, Gamm whereof I have signed this

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