US1642936A - Extension reel for electric lamps, portable drills, and the like - Google Patents

Description

0, MILLER EXTENS'IGRL' REEL E'QR ELECTRIC LAMPS, PORTABLE DRILLS, AND THE LIKE Filed Aug. 21, 1925 Mme-Mme: a W

* I Ava/Mix Patented Sept. 20, 1 92 7.

l li aqiAmxrmnxtension nner ro e ELECTRIC names; QQBTABLEZDRILLS, AND THE LIKE.

Application filed August 2151325. ,SeriQIyNoQ 51,700. i

This invention pertains-to improvements in selfgwinding reels in connection with electric extension Wires torilluminating-w lamps, portable drills, and the like, and,-

', more'especially, in COHIiBCtlOIl WltllItllE pe-g I ci'iliarltype of self windings;"reelsorspools ShOWIrin three Un'ited(StatesLetters Pat ents, viz: No. 12156302, dated'October 12,

i 1915 No. 1,214,031, dated January 30,1917; p and Nor1-,362,34A, dated;December 14, 1-920,

' and each and all-assigned to the same assignee', -The Cincinnati Specialty :Manufac-* tur'ing Company, of CincinnatipOhio, as the one herein, and WVhlCh'SPQClfiC improvements together with their obgeet and structure, as

Well as operation, will be readily and fully "understood from the following: description when takenlin connection -Wltl1 the accompanylng sheet of drawings, in Wh1chlatter 1 Figure I is a side elevation showing the:

' device in normal position; LWith the electric conductor-Wire 1n wound-up condition and,

i more especially,displaying my invention in? jWork1ng- .place;on the near-face ofthe reel;,

F ig. -2',"a fragmentary elevation of the inastee tter Omitted, and showing, tmeshedrelation' therewith, ja minor shift-lock toothed ivh e'el or" pinion that is securely mounted,-

; tree/to rota tefupona short shaft or arbor that tu'rns' 'wlth n a bearing- 'sleeve on the j suspens on-fram arm or auxiliary bracket lauiiiliary {bracket-arm 'and' a litragmentary ""pprtion of theperipheral edge or flan'ge of 40 the reel; and' FigAQ an axial section of the fsaid shift-lock pinion', its"arbor' b'earing-" sleeve" and theupper "corner of the said1auxi lyibracket-arm. 1 v I a P' indicates the jnearside-mem-ber ofthe I ci'rcuniferentially-grooved internal-spring- "controlled" Winding-reel that f has hub-bearing-support (not'openl-y shown) in the sta 'tionar'yidislr *B intermediate a. pendent pair "of thelarger- (5), andsany lateral play of the .pini'on,'- or of the' larger Track-member ;5 is duly compensated forto preventloft-track of fork-arms (one only shown) C. Said '50 pendent armsextend from the swivelD that toothed-ring or peripheral 'rack on the "s d 'ne'a r face of thereelgbut with the: lat-- lamp-cord-for vdetermining and, otherwise limiting its return-Winding pntheleel as Well as automatically breaking thelightor other service CllCUltiYhGD not injactualuse.

Forwardly-extending arms or triangularvshape plates F span the internal springcontro1led reel A; the :former patents, andthe other parts ofthe dev ce herein correspond to .thoseuin said same ,as int-he said former jpatents too, including, also, "the bumper loop Grand brace Hforthelupward thrust of the said stop-button Son; the completion of v the "return-Winding of (the lampcordonethe reel. 7

My nwentionihere n will now be;taken up .rforqa brief and concise description, and,

,Inore.;especially, in connection with its cobturnspring-wouhdikiel upon which {it is 1removably secured by meansofa circularseries otherwise, mainly shown inFig; 1. The-said .raek 5-. is not ar: broadone anditsteeth are preferably i round-ended with round concavities betwen them. LSaid' v rack-teeth maybe made-integral.withithe periphery of the reelv:u'ieinber A if desired. Coactinglwith said ,circular rack 5 .I provide ,aminor, toothed iivh'eel ,or opinion 8 Whose teetliareround ended; and the -c'oncavities between; them acorrespond, except in enumber, of course, .to I

those oftheesaidolarge or master. rackffiand lntermeslninithe, operation ofthe feel, for

automatically controlling ,the return .or bacli ward movement oftheIeelwhen thedevice, is in; extended use. The, said pinion; it

#Wifll L'be observed byereterence to ,Fig; 3, is ".Hmade considerably thicker than the said xlarger rack-member 5, so; that; there may be a r broaderhearing-surface for. the teeth of-the latterfmemherin the service rendered by. the v two iwheels-( 5 and 8) \wherein theSlnaller one (-8) rotates atleast .ten times as often as that 'ing-fof either, asczwe'lllaszto {allow perfectly ,lfree rotary l movementiof ,the giarbor vor spindle 9 of the is clamped in. place in an o 'riro atltttmpr QITICIQKNATTIHQK10,,A,SSIGNQB remit elnoliimr Y FAQTU B M A SJ NAT L eeee- QBE BA T F JOHIOJ -huttonaS is adjustably mounted on the a e ectthatimainly lies ,inthe gprovisionp of a circular peripherally-toothed;ring or rack 5 that isot shghtl iesser 'diameterzthan that of the said near sideemember Aofihereorifice 11 made in the pendent arm 12 by means of a pair of nuts 13 and 14 that engage the threaded portion 15 of the said bearing-sleeve 10. as best seen in both views, Figs. 3 and i. The outer end of the said spindle 9 extends beyond the outer end of the said bearin -sleeve and it is there encircled by a plain collar 16 that is fixed thereto for turning with the spindle and the pinion in unison and aiding in steadying or stabilizing the entire pinionbearing so that the pinion may not unduly vibrate in connection with its extended position inwardly beyond the inner face of the said pendent arm The extreme outer end of the said spindle is duly flanged or riveted at 9" to h prevent its undue endwise-movement or slip ping from the bearing-sleeve 10. Any high or otherwise undue speed oi the pinion in either the winding or the unwinding action oi. the internal spring-controlled reel will thus not affect the condition of the pinion or its action as a stop device for the reel, which I will now refer to by stating that the outer face of the pinion is armed with a number of corresponding, gravitating pawls, in this instance, three of them, as indicated by the numerals 17, 18 and 1.9, that each have back-stops 20 and whose inner free ends are adapted to engage, in turn, a longitudinal notch or groove E21 made in the upper face of the plain inner end of the said bGRIlIIQ'SlQGVG 10, as seen in Figs. 2, 3 and at, but best seen, however, in Fig. 2, wherein the tooth of pawl 18 is in activeengagement with the notch for the return or winding movement of the reel as well as acting as a detent or stop for the lamp-cord in its extended position for use.

The arrows on the pinion and rack, seen in 2, indicate the direction of their rotation when the automatic spring-winding tension oi the reel on the lamp-cord. has

been brought into re-winding action after the said lamp-cord has been in extended posititm tor the use ot the lamp.

A handled lan'ip-socket L is attached to the outer end of the lan'ip-cord in Fig. 1,

but it is obvious that other attachments may be made to the lamp-cord to suit the purpose of the outwardly extended use thereof.

The upper end 12 of the pendent arm 12 extends inwardly toward the lower corner ot the swivel D and is provided with an upwm'dly-turned end Z tor accommodating: a screw that is used to attach the upper part ot the said pendent arm 19 in place on the said corner of the swivel for the support of the said pinion in meshing contact or relation with the toothed rack 53. The lower end of the said pendent arm 12 is suitably attached by means of screws 1, 7, that, engage the near one oi: the forwardly-eatending arms or plates F, as best seen in Fig. 1, and the stop-ltuunper loop (i mounted at the meeting outer ends oi" the said for ardlyextending arms or plates I in posit-ion for properly supporting the said loop for the lnnnper-contact oi the stolirbutton S on the lamp-cord W.

The continuous circular rack and pinion, together with their accompanying pawl-stops form a decided 'lnprovement over the old term of lateral arms or pins that extended from the near side-member oi the reel in the said former patents and became mutilated and bent in use and thereby caused detective service in the reverse rotations of the reel that needed much repair, especially when the internal parts of the device hecame deranged in any way owing to a wild returnanovenlent ot' the reel under strong spring tension caused by one or more 01. said lateral pins or arms becoming bent or broken, and, perhaps. at a critical time in the use of the lamp or other service device at the outer end oi the electric-conductor W, and oftentimes resulting in a complete smash-up or wrecking oi the reel beyond ordinary repair.

1. In a self-winding electriowire reel, the combination, with a springcontrolled wirercel. of a ratchet-stop device comprising a continuous peripheral toothed edge or circular master rack, a correspondingly toothed pinion whose arbor or spindle is mounted in a notched bearing-sleeve on the suspensiontramc of the reel, a plurality of gravitating pawls or claws provided on one face of the pinion andv each pawl in turn adapted to engage the notch in the saidhoaring-sleeve to form an automatic dctent or stop to instantly catch and hold the spring-controlled wire-reel against the winding action thereof when required, suliist'antially as shown and described. i

2. In a salt-winding electric-wire reel, the combination oi a reel or spool under springcontrolled tension, a removable rack-ring attached to the. outer face oil Zone sidemember of the spool, a toothed. pinion mounted on a bracket extended from the reel supportingdranie and pawl means on the pinion adapted to engage a notch or the like. on the snpporting-trame for providing an automatic detent or stop in the return movementot the electric-wire onto the reel. from its extended lamp holding position until desired, substantially as shown and described.

In testimony whereof Tl hereunto aflix my sign attire.

OTTO MILLER.

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