US2325621A - High tension sign insulator and attaching means therefor - Google Patents

Description

s. cl MILLER Aug. 3, 1943.

HIGH TENSION SIGN INSULATOR AND ATTACHING MEANS THEREFOR Original Filed Oct. 5, 1936 mvswron ,Jmvus; C. M/LL Q BY 4 nrromvsv k\\\i mlllllllllll iiis\\\\\\\ Patented Aug. s, 1943 UNI"TE.D-*STATES j -T ,NT' "E" fATfIfAQIEI ING MEANS THEREFOR $an1ucl 'C. QMillr New York; N.

V 103,964. "Divided and'thisap'p licationOctober 25,1940; SerialN0. 362 ,709 I V i a x gmcai 'a; c1. 7 ;339 application is a'diyisionof myapplication SerialNo 103,964,1iled October5, 1 936, whichwas' issued on October 29,1 1940, as Patent 2N0".

t I Myinventionirelates to an insii1ator-construc 1 tion and attaching means therefor; particularly ticularly mylinvention' relates toinslilatorsof the f character and for the purpose n entioneqi iri the form'oi housings or collars and-attaching'means' V therefor; particularly where the-insulating inatonal-constitutes glass of thelow expansion-borosilicate type, such as disclosed in Sullivan and V reduce the 'efliciencyof-theyinsulator ior its intended purpose particularly high ten'sion -electrical installations for illnniinants of theflcharaciiseful ificonnection'with high tension' 'illur'ni such as neon tube assemblies.- More'pan Qbythis' form of lin sulating material t I i To attain the rafore'mention d obJects 'ter described." 1

2;? Thus; my invention has for itsobject meme vision of insulators permitting the employment of glass Of the character mentioned, while retainin'g all the efiicient operatin gconditions attained V l and such further objects as may appearherein or be here- 'inaf tejr pointed: out, make ref erence'to the acat extremely high utemperaturesfby cast:

ing operations utilizing a plli'nger type "ojf i core.

partsofmold configurations which are "to serve [to "constitutes the m'smam material.

In the utilization of insulators of the character "d s crlibemwhich areiarranged to beassembled'fin I connection with sign frames of the neon tj he Wiihesefrjaimes frequently .t'akefon considerable proportions and the attachment of insulators necessitates the cooperation ofntwo menl-eonet'o locate the, insulator from the irontjface ofgithe 'face of the frame. 1 1 7 A qo n l a n cfln iin n i in the provision ofjastening means for insulators name and the other fasten it fromgth rear ides ofthecharacter described, which are; capable f of l attachment ro the front face {of thefsign fra'me im i n .n a o Afurther object of my invention resides in the and the location and fastening ofthesaine from Making reference to" the companying drawinggiorming a part hereof; in w m 1f 1 a j Figtire 1 is afragmentary.sectionallview of one i embodiment of my mv itiomgran insnlator 'and attaching means;

t Figure 2 i a section" 05.1 3 line 2- 2 of i u e Figure! is a fragmentarylplan viewof thegievicefilllistrategl in" Figure 3; with the insulator mo a :ti .f r r t Figure 5 is a section taken on the fline E -5 of t "Figure 51,

barticlilai ly- Figures 1 and 2,1 have illustrated j-an'electrode housing insulator 10,," This" n ayipreferablyjbe hf the "general configuration referred. to in my Patent No. 2,046,960, grantedjJuly 7,1936; in

which the insulator housing serves as mounting means for the terminaliand 'contact suppojr't of a highvoltage electrical illuminating sign, such asaneon tube signand whichQwiththe exception f the attaching means herein more specifically described, may incorporate the featiires' ofjsuch housing in all otherjrespectsfi l a V i 3 Accordingly; the housing' mentioned isarranged dispose a "contact terminal ll; at the bottom" of a ce'ntralbor ing I 2, opposite to the'r'nout liof the housing, Adjacent to; the mouth? there" is lbrovision of attaching means-fortin sulatqrs which permit of front face attachmen'tyand location,

ja'rici bf such form ang construction to permit the employment of glass of 'the character: described;

ATdrther obj ect of: my invention is to provide a form of "insulatojr for the purposes described,

empldyingglass and attaching'means permitting, the locatlonand attachment of the'insulator 1mm the front face or; the sign rrame rxtayomm a 3 the introduction of attaching means "which :will' provided a peripheral flange l4. FInwarcllyspaced fromthe flange 14, there isforxnedasecond a ut inent flange I5, in the-forni of; a screw threaded portion, leaving a neck l6 forming aseat-between the aforementioned flanges; which I will' be' niore particularly amplified hereafter. t {The insulatorjust described is arrangedtolbe attached to the'iramefl ll offiaj neon; tubecon struction and this is 1 provided with an orifice" l 8,

the dimensions'whereof permit passage therethrough of fthe abutment 'fiange "li -but are less than the maximum dimension-of the flange-"I 4, 'Whereby this may abutthe' Walls of the orifice I 8.

is affiagnientary sectional View of another embodiment of myxinyention;

,insulator tapersfg radually forming an e tvall to the "base of the insulator'adja'ceht the l ,iiorti on f the insulator may The general configuration of the insulator housing thus described is particularly amenable to casing operations where glass is employed. Thus, the plunger type of core mechanism used in connection with molds for casting may readily V be employed in that there are no fine or sharp corners, prohibitive in casing" glass of the heat resisting frfie The interior as 'i rvell "as the eig- 'terior configuration of the insulator'j-ust de- 'scribed being of extremely simple contour, the

mold necessary for casting the glass may be used: repeatedly, to make such glass available com- V mercially for the intended. purpose. 1 I

figuration of the screw-threaded portion 29 on the insulator, to the limit that the inner flange 32 is inserted .at the split portion 3! of the collar to liold the collar against relative rotation during 7 the'ltimethat the -insulator is rotated to efi ect the 7 However, the simplicity of configuration, elimi- V nating sharp corners,- orifices, makes the iatt'ac'hment of this type of constructionunsuitable for; I known v types of "attaching devi c e'sfepecially in accordance with the primaryobiective of my invention, to provide attaching mean permitting the insertion of the insulator member'from the front-face of the frame 11, through the orifice I18, 1 without the assistance o f someone to p'osit'ion the attaching h ieans from the rear 'face of the frame l1, asis required in connection withth'e attaching collar :showri inmy patent aforemn- I inemberembodying; the; elements. already "de-' scribed, either in ajhousi-ngadapted' to.support the contact terminal-{assembly "ll orsever'ed "at an intermediate point along the 'line D; forming the'collar, lwill-now' r'efer to the attaching dev ice gontemplatedbyfme in this application.

in Figures I-and'ZI ha'Veillustrated'an'e'thbodi @ment of my inventionc'arrying outsto certain fld s a ih pbiect ve.em h z s is of the configuration of theinsulator an the'attaching means fOf wpneviously filed application, at which the presentapplication is a divisioh. this embodiment, the' insulator hous n "it? has formed adjacent itsfmouth-"an outrj'fiahge mm I '13 and an innerg flang'e J 3 tapeli'ih g gabruptl the necl; of the housingjadjacent 'whi'ch'wportion there is rotm da's rewtnreaued p ortienrane ree F -tofore -ref erred-to-as a second abutment hangers.

"fthe' erio'r From this point eastward, Ttlie 'eiiteridr isft. This eeirniisreimeawith an "outer'fi'ang'e' be: effected through theftrorit'iace, of'thefirame l Withoutrequiringany assistancei'at a pointto the -It will be observed that the construction in :oorinection'with Figures 1 and 2 embodiesthe features heretofore described, in respect of the I :irisulatonfby reason of its simple contours, mal

f-ing this construction particularly amenable to employ glass as aninsulating material.

' The--insulator and attaching device just described have -substantially alt-the teatures em- V bodied; in the same asj described in the,con-

struction of my prier parent application so far as the elimination of casting di'filcultie's t insulator. It W-Ii:1l be understood, however; though ;-I have described the insulator- Tathe attaching Tm'eans as having 1particu'lar novelty where the insulator material is made un ase; in

that this is readily adapted tiortcommerc ial castf r t reme tsreas e ei e t wer tures of my, insulatorfand attaching. .deyices'v-may equally it employed otherfinsulating' ma:

sQsuch as porcelain, hard ru'bberland other teria-l insulatingmaterialsl; Y 7 V 1 V Furthermore, attachment of thisinsulator may i 'innerforir'ear da ce of'theifra'me I]. l

- further iehibodimeritfofinvention, wherein the collar l ilc having .a boring orcentral orifice IIn "comed an "tonnes tenemen s, iipro .i mt efl ee; whee st eams e t 33,"thereby providing a neck por tionfi i. Beyond --the flange-33,the collar is embossed witha. crewinner-face ofithejfiramelll, and the outerflange 132 abuts the outeriace of their-amen. In this position, the insulator is then; disposed through thecollaruntilthe screw threaded portion??? ene's fthe th a edtrert n h el e .ser r threading :the insulator inrelation to the-collar progressively"movesthe insulator through the ori- V fic and through the collar, accompanied -byspreadin of se ler; one t he t er dm- "threaded portion 290, the exterior Walt-of the It'W'iIlFaISO be observed that While 'h ve'ae} js'crib'ed the 'insiilater Illot the general c'on'tour :form'ingafreeptacle or hous'ingjof theitype illustratedi'n my aforementioned patent; the "insulator may .b e forind as 'a collar by severing the po'r'tio'n faii l'aclit tae ,pomt' "indicated ey; ithe T26 is'shapedeiiteriorlythereoftoeprovide a'flange 14c beyondir'lhichlthecollar extends-'into-a'neck portion lscjrorming a seat, terminating into 1ascrew-threadedportion 729a. -{It isV-preferre'd that the rearfwains 6f the'threadsl'3 5ibe more abrupt V than "the forward thread-walls 3'6; for {.pur'po'ses peeyond the "last convblution lof thel screwv insulator-is generally wcylindrical"0r egradually .firstlpo- Eitidridifitothe Qr'ifice [8, as more clearly'shotvh in dotted lines in Figure 1 in "contracted coaut- -tien, ,pa ssi ng the threadedportion 3 0 through the .1 5 orifice until the inner flange 33"has passed the :t'a'prs to its co -terminu s'fB, wherela collar is {formedfthoughxthis' may extend for an additionalllength to liorm a receptacle or housi-ng, as in dotted lines in -FigureT3 beyon d he 'p'oiIit'BL' v in Figure 13, n I provide attachmg means in the form of a spr ing clip-31 having spaced bowetl "branc 4D, 'fl heclip 3l may be attached-to the 'rear face of the frameiifl byalscrew or similarsattachi'ng member e41 engaging th'e ortfiee K2 in "the l frame ll therebyholding the rc lip 3 'l with the branches and- 39 transversely ofthefor ifioei t8. 7

l :It-will be understood'that; the-clip 3f! @form'ed a i in W re w t a c e a d-t ee jwliichtvilljmore clearlyapp'ear as 'desgfipltiohlproc'eds. r r

With an insulatorof the-character: illustrated hes 3 8 and connected tog-ether by a loop 7

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