US1480668A - Spring motor - Google Patents

Description

jam. 3 5, 19240 l ffj C. B. COLLNS sPRlNG MOTOR 2 Sheetsheet 1 #will FGM @l v C. B. COLLINS SPRING MOTOR 2 Sheets-Sheet 2 Original Filed Feb. 24 1920 la @no o SALE." l

CAP B. COLLINS, OIF FRANKLIN, ENJSYLVNEA, ASEG-NUR T0 CULLENS :SFETY RAZORS, OF CHCAGO, ILLINQES, A UOBSMN LLW BUSENESS GTR ST.

SPRXNG MOTOR.

Application @ed February 24, 1920, Serial. Ho. 366,87; Renewed une i8, lS-ZS.

To aZZwzo/m, t may concern: i

Be it known that l, CAP B. COLLINS, a citizen of the United States7 residing at Franklin, in the county ot' Venango and State 'of Pennsylvania, have invented cer-- tain vnew and useful Improvements in Spring Motors, of which the following is a specication.

My invention lconcernsfnoveland advantageous improvements in spring-motors and concerns particularly, but not restrictedly, motors' of this type whose speed is main tained substantially uniform or constantby a suitable governor or controller, such, for example, as one of the centrifugal type. Such motors are adapted 'for convenient and satisfactory employment in many re'lations, for instance in the handles of powerdriven razors telephone time-limit meters7 and similar appliances. `When used for actuating rotary razors, or example, .the motor is housed in and operatively connected to a divided or sectional shell or casing and is'wound up b turning -one of such elements relatively to t e other.

Various features of advantage also accrue from the particular manner of mounting 4and co-relating the various elements of the mechanism all of which will be readily understood from a study of the features of construction and operation of a preferred embodiment of the invention which has been fully illustrated in the accompanying drawf ing forming a part of this speci catlon and throughout-the views of which like refer- .y ence characters yrefer to the same parts.

lIn this drawing:

i vFigure 1 is a fragmentary, central, vertical section through the motor and its casing vor housing on line 1-1 of Figure 2;

Figure 2 is af horizontal section taken on line 2 2 of'F i re l, the manuallypperable stop 'or braid being omitted.

Fi ure 3" is a horizontal section illustrating t le retaining device in plan;

Figure @is a plan view of the centrifugal governor and. i;

-Ifig'ure 5 is a plan of the top frame 'member.

.Referring to the drawing` it wilt-boobserved that the appliance includes a support-plate of irre ular shape connected at one or more of its t fee outstanding ears,

as shown in Figure 2, to'the inside of the.

one-lor upper` element of an enclosing casing or housing. Mounted on such plate by a screw 14 is a sleeve l2 provided with a circular flange 13 lying on the top of plate el() andlinto a threaded aperture of which the retaining screw le tits. lnside of sleeve 12 l provide a central, stationary post l5, the two parts 12 andl being ixedly secured togetherv in any approved manner' as by a transverse tapered pin 16.

Revoluble on the stationary post l5 below the sleeve 12 l use a sleeve 17 which is held in position lengthwise on the post by the enlarged head of a screw 18 taking into a threaded hole 19 in the end or" the post.'

Such 'sleeve 17 is turned to wind up?, the spring-motor as hereinafter indicated by means of an internally-threaded collar 20 screwed on a reduced, threaded, end portion of the4 sleeve, the circular or outstanding flange of such collarbeing secured'as by solderingy or otherwise to the inner face oit' the other or companion registered shell or casingiineinber 22, the opposed housing vele ments 11 and 22 having a circular overlapping joint 23 at their edges. A nut-24H5 screwed on to the part 2l oi? che sleeve i7 between a shoulder of the latter and 'the threaded collar 20, such nut holding in positiona spring drum or barrel 25 having at one end a part 26 bearing on the nut 24 and revoluble on the cylindrical portion of the sleeve. As is- 'clearly illustrated .in Figure l the barrel 25 has an internal circular shoulder 27 supporting a, top disc 28 pro-j vided centrallys with a round or annular flange 29 revoluble on lthe sleeve 17 and Sli bearing at its end'against the side or under Alot the spring being fastened to the element 25 in any approved manner, not shown.

(lo-operating with the teeth oit the ratchet- Wheel 30 l: vemployy a suitablyshaped doubletooth pawl 33 pivoted at 34 on thev under side ot' the main supportingplate le@ lteeth of which are in mesh with those oi' a small gear' 36 on a shaft 37 revoluble in a suitable bearing in the plate l0 and an aligned hearing 38 in an upper supportingplate 39 carried on a plurality ot posts 40, il rising from the underlying plate 10. Shaft 37 is equipped with a relatively-large gear 42 in mesh with the teeth of a gear 43, the teeth ot" which are out in a duplex sleeve composed of two intertitted parts 80 and 8l secured together and accommodated between a portion. ot' the post 15 and a hollow cylindrical part 82 of the fined sleeve vl2, a part ot such element 82 heilig out away at one side at 4A whereby the gear 42 may ein tend through such opening,- and be in cooperative relation with the teeth of the small gear 43. rlhe portion 82 ot the compound sleeve driven by the spring-motor by means of the mechanism designated may `loe employed to rotate any mechanism desired, such, for instance, as the rotaryiiolade of a razor, but, of course, the particular means yoperated by such gear iso little importance so `tar as this invention is concerned.

To render the speed of rotation of the gears 42 and 43 uniform and substantiallyunvarying, it is necessary to provide the mechanism with a suitable governor or controller and this comprises the following cooperating instrumentalities. Gear 42 is in mesh and drives a smaller gear 45 on a shaft 46 revoluhle in bearings in the spaced supporting plates 10 and 39, and a gear 47 on Such shaft revolves a smaller gear 48 on a shaft i9 in similar manner revoluble in hear* ings of the same two plates, such shaft being equipped with a gear 50 the teeth of which co-operate with those of a smaller gear 5l onA a shaft 52 rotatable in bearings of the two plates, this shaft having thereon a spiral gear the 'teeth of which are in (ro-active relation with an elongated spiral-geeion a shaft 55 rotatable in hearings in ears or lugs 56 and 57 lient up troni the plate l0, an end-thrust bearing 58 'beingY provided adjacentto the ear 57 against which the end et shat't 55 hears.

The speed ot rotation of the 2ejem-innr and consequently the control of the umrinding o't the motor-spring 3l is eifected h v means of a hi'alie-inechanism which applies a restraining1 influence when the speed heroines too high andl removes or decreases it when the speed is too low, thus rendering', the rotation of the various shafts and gears suhstuntially uniform.

To this end a relatively-stational-y arm 59 is adjustable around its fulcrum or pivot pin 60 screwed into a threaded hole oi the upper plate 39, such lever 59 being secured in adjusted position by means ot' a screw 6l :insonne taking into athreaded hole of the plate 39 and extended through a slot 62 of the erm 59. At the free end of tirol-fitter above the shaft 55 it is equipped vwith a fiber or other friction block 63 adapted to bear against the side face of a friction brake disc 64 forming a part of a sleeve 65 slidably mountedon the shaft l55 and having a cavity 67 in an enlarged portion 66 accommodating a coil expansion-spring 68 bearing at one end against a collar 69 xed to the shaft 55 in any approved manner, as by pinning. The enlarged portion 66 of the slidable sleeve has two sets of spaced projections or lugs 70 between which weight arms 72, 72 are fulcrumed or pivoted at 7l, 7 leach of such arms having a tail portion 73 adjacent to a circular dan e 74 on the sleeve 69.

In order t at the motor may be readily started and stopped, the housing or casing element 11 is slotted at 90 for the accommodation of a sliding finger-piece 9i roughened externally and 'rictionally held in position by means of a stud 92 secured thereto and extending inwardly through the openingr 90, the threaded portion of the stem being equipped with a pair of nuts 93, 93 bearing on a washer 94 between which and the inner face of the shell or casing element is a washer of leather 95 or other suitable compressible material and a dat leaf-spring member 96 apertured for the accommodation of the stud and bent to provide an exi tension 97 adapted to be shifted into and out of engagement with the periphery yof .the friction or bralre disk 64.

The operation of the appliance will be readily understood from the detailed description of the construction and its various parts but may be summarized as follows:

To wind up the motor, the operator holds the casing element 11 inone hand and turns the other 22 relatively thereto, the rotation of the latter effecting" the turningl of the sleeve "i7 and the winding of the springT h v reason of the connections between them at 32, unwindin;r of the spring` 3l beingr prevented hy reason of the co-aetion of the pawl 33 with the ratchet-wheel 3() carried by such sleeve. Ais `soon as the brake spring 97 is shifted away from the friction-disc G4 by sliding` the finger-piece 91 in the proper direction in the slot 9() of the casina or housing element 1l, the springT 3l will be- `fin to unwind from its outer end. its inner end heine` held against rotation, and will revolve the barrel 23 and'its internahgear 35, the rotation of which. is transmitted through 2gear 36, shaft 37, and gears 42, 43 to the hollow shaft or Sleeve element 80. 81, from -which the power may be taken off to drive any mechanism desired.

, The speed of rotation of these parts is, of coursecontrolled and 'regulated by the action' of the eentrifugallvoperated weight lll) :if- momo arms 72, 72 which Wiii foe thrown outmore or less depending upon the Spee@ of roteton of shaft 55. If the speed becomese2:- cessive, the feet 73 wil?. engage ehe ixe enge 74 byleesou of the omtweid move ment of the erms72 and poli he sieeve $5 to the left, as the perte ere viewed in Figure 2, time increasing the brekingpreesue of "che frictiondiSc 64 on die fibel' or other element 63. Ae sooiieehe Speefi. decreases because of the'sligha movement of tile sieeve to the right, as is pezmi'ttc thi'ough ehe movements of the por'eions 73 of the arme 72 irelesive to the Harige 74. The trein of eers which drives the shaft 75 :from he i gear e2 constiiutes meieiy speed iieefw ing mechanism of usual #b5/pe so es tio' Hieke eveileaie a miie of rotation euieee and proper for the operation of e cenivifugeigravamen'.A I t The Mwension ie not hmied or feeuicted to the precise and execs? features of con struction set forth in {ieeii above :md iifoe treteci fully in 1the {lire-wiiig;y because these may vbe modiied within compmetiveiy Wide limie without iepareure fiom the iiceft and xessence of the inveiieii'm end without the sacrifice of any o iis eubetnntiei benefits end edventeges,

cieim:

1. inem :appliance of ehe chomcec de scribeii, the co-miiiiietion of casing comn pose@ of regieeeriig sections formed to oveiiep one eiicbiier et their meeting edges end capable of rotation 'eieeiveiy @to one m1- otbei, e'springmoio ceieieci by one of seid sections, e, siet Toteted by the unwiiiding of the spring of seid motor, goveirnog means to rener the speed of oetion of said shaft subsfentieiiy comme@ means rio effect Winding of the motor upon 'feieve rotation of seid secione, subsaeotieily es described.

2. In im appliance of the cherecter descrlbeii, combination of o casing composed o reggiseeliiig eecione cepabie of 'rctatloii ifeleiweiy io coe enodiei9 :i spying .meier carried by one of Seid sections, e

she'; roteeci by @the uifiwindingP of the spring of eine motor, means i'o effect Wmdspling of the motor, means to eiect winding of the motor upon relative roem In o Seid Sections, e friction-Mak, a brekeehoe coaciiig Wiih seid disc, centiifugaliy-acteamed weight, memos to ifotete sei-t! disc md 'Weight from the motel', mesme; whereby Seid weigiie shifts end disc :axially toward from seid brake-Shoe, and a manueilyopeme breke-eiemeiit adapted to be moved imo and out of frictionai engagement Wigii seid disc, eubstentieliy as desciribeei In en appliance of the character de sciibefi) the combination olf e casing composed of registering' sections capable of rotation relatively io cioe another, e springmotcr cef'iefi by one of seid sectionsy e Sina@ ioeee by the unwinding of the Spring of the mortel, means no efec wnlinff of 'ifie moto? upon feietive rotation of sui secions, e friction-disc, e ever, a brake shoe ceiiedy by seid lever end cci-acting with side of seid discj meme peimieing ecjosiioem of the positie-i1 of said lever mici beiieeiioe, a centriiugeiiy-acuoted Weightj ,means to rovete seid isc and weight imm Seid meier, mee-ne whereby seid weight shii/s seid disc axially toward end from seid 'brekem me, end e mamieHy-Qpeebie 'bieiieelement edeptedlto be moved into and out ci' 'icionel engagement With the edge o seid liec, eubeenieiiy es ciescribed.

en appliance of the character deseroe the combioetionof e post, e, sleeve revoiube on seid poet,v e, coil-spring having its ilme eed connected to seid sleeve, ineens to time seid sieei'e on she poetic Wind up che Sping, 'io preventbackwerd r0- mtion of the sleeve on the post, e. Spring barre/ connecea ce the oiitei eli-d of the Spriiiff and ievoiube on said eiee've end roteed oy the unwinding the spring, e secomi sleeve on said post, and gearing coiw meeting seid. borrel. and second. sleeve Where internal-gear mouned on seid epiinghee 'ei, Substzmiieiy described.

G. lin ,am :iij'iiienoe of fiie' chei'ecte e scribed, abile combinaon of e, casing; composeo. oi"- egieeering sections cepebie of o minion reietiveiy, ilo one another, e post cer fied by one of seid sections, Sie-eve revolw ble on posi; emi cmumece io *che other casing' section, e coil-spying in seid. eee* ioiie caeing 11e-ving iinner end ccieeed to @aid seeve, meen-e to prevent bockwerd roteeon of the sieeve on. the pesi, geering operated by 'che out/ei? enel of the spring end roetefi by the unwinding of the spring; e governoi conroiling the unwinding of the wh/ed by Said gearing, substantially as de scfcibed.

7. Xn im appliance of the cha-mete? deecribeytiie combination of e. casing com- A spring, and e second sleeve on Said post reposed of registering Sections capable of rotation relativeiy to @ne another, a post oarried by one of said sections, e sieeve revoluble on said poet arid connected @o the othei casing section, a mii-spying having iis in- Berend connected to seid sleeve, e. ratchet wheel rot-ated by salici Sleeve, a pewi co-opeuting with Said ratchet-Wheel to pevent backward i'otatioii of he eieeve on the post, a, spiking-band connected to the oute' end of the spring and revolubie on said sleeve, a. second Sleeve on said post, and gearing connecting Sai-d spring-barrel and second sleeve 'whereby the motor revolves the ettei', the spring being Woun up by the turning of one of said Casing sections relatively to the ofher, substantially as described.

8. in an appliance oit' the character 'de- Scribed, the combination 'of Asi relativelyxed poet, an apertuz'e sleeve fixed to and surrounding said postg a second revoiubie driven sleeve between seid post and sieeve having; geef-teeh thereon, a biid Sleeve :cevoluble on seid post, e coil-spying having its inner end conneceo said third sleeve. means to rotaie seid third sleeve to Wind i ,eeoeee up the sprixigygearing connected to the outer end of said Spring and projecting through the aperture of said irst sleeve and in mesh wih the gear of said Second sleeve, and a governor controiiing the Speed of rotation of said driven Sleeve, Substantially as described.

9. n an appiianoe of the ohai'eoter descibed, the combination of a easing composed of egisteiring sections ce,` able of rotation relatively to one emot er, a post mounted on one of said sections, en aperturec sleeve xed to and surrounding said oost, e secondi reveiubie driven sieeve begyveen said posi: and sieeve having gear teeth thereon, a, third sleeve revoluble on Said posi', and opei'e'iveiicoiixieoted tothe other casing seoioin` a, ooi epimg'heving its inner end connected to Seid third sieeves gearing connected @e the outer en ofeeid- Iing' and projecting houg'h the epeitue iis; sleeve and in mesh with thegeer 'ofs'aid Second ciiven sleeve, and e governor lcoinoiling he speed 'of rotetion of said diiven sleeve, substantiel@ es described.

SAP B. CQLLNS.

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