US1107666A - Insulated rail-joint. - Google Patents

Description

L. GRIFFITH.

INSULATED BAIL JOINT.

APPLICATION FILED MAB.20,1913.

1,107,666. Patented Aug.18,191

i reason ll,

" PATEN clinics.

LfiWRENCE GRIFFITH, OF YONKERS NEW YORK.

mscmrnn Esra-sown Specification of Letters Extent.

Application filed March 20,1918. Serial No. 755,601.

[my concern wn that I, LAWRENCE GRIFFITH, in United States and resident in the county of Westchcstcr, York, have invented certain usciul Improvements in Insulated mists, of which the following is a spci licstion i of the main objects of this invention use-d an .meciion with tie plates under mil t the necessity of placing insuand All between said tie plate.

* n practice in insulated rail plates are used to insert or other suitable hard insu between the railbsse and This is objectionable for the g ed and des 'inering or ounding of the rail thereon. I It is munife L therefore that to provide .in ellicieot uletcd rail joint in which lie be used said dates and the mils in direct contact, is very desirable. of tie pistes has become practically 'l modern railroad building and practically necessary, therefore, t". s under the rail joints.

a ct of the invention is to proridc tic plate especially adapted for; iniprovi Lil oin? construction.

Anotb t t of the invention is to proan insulating strip or sheet of peculiar form for us in the insulated rail joint and also pro? a short motel filler piece to i connection 'witli the insulating of the invention is to insulating sheet and the e thot the metal filler piece rtion of the wear ocillllilg or the car wheels U uni or space between the the metal filler and the c t that the insula from between the ith ntdisturbing is to provide it rail joint which Hilly be the insuletion is soon disinteaycd by the constant hum- There are other important objects and advantages of the invention which will appear hereinafter.

In the drawing, Figure- 1 is a. transverse vertical sectional view of the joint onthe line I-I of Fig. 3; 2 a similar view on the. line II-Il of Fig: 3; F ig. 3 a side elevation of the joint; and Fig. 4 sperspective view of the insulating sheet and the filler piece, these parts being shown in the relative positions which they occupy in the assembled joint.

Referring to the various parts by nu merals, l and .2 designate the rail ends which are separated by the usual insert of insulation 3, Under the rail 1 is arranged a tie plate 4 and under the rail 2 is arrziiwed a tie plate 5. These tie plates ore broad and extend a considerable distance outwardly beyond the longitudinal edges ofwthe mil bases. The tie plate 4 is formed with an upwardly extending shoulder -6 which is adapted to bear against the longitudinal 5 is formed with a similar shoulder? which is adapted to engage the longitudinal edge.

of the base of the rail 2.

Splice bsrs 8 and 9 are employed; and said splice bars are formed with outwardly extending base flanges 10 and 11,said flanges extendin outwardly a considerable distance beyond :3 e longitudinal edges of the bases of the rails, as shown clearly in Figs. 1 and 2. interposed between the splice bars and the rails are insulating strips or sheets 12 and 13, the insulation 12 bein interposed between the splice bar 8 and tie rails and the insulation 13 being-interposed between the splice bar 9 and the rails. Each insulating sheet is formed with the vertical web 14; the upwardl and outwardly extending member 15 w ich is adapted to fit between the upper surface of the splice bar and the under side of the rail head, and with the downwardly and outwardly extending meanber 16 which is adapted to fit between the base flanges of the splice bar and the upper surface of the base of the rail. The upper member 15 and the vertical Web portion bits securing the splice bar to the other in Figs. 3 and 4.

rail passing through openings, in the web of the insulating sheet. This construction and arrangement of parts'is shown clearly Fitting in the cut out part of the insulating sheet and taking, the place of the cut out portion of said sheetis a metalfillerpiece 17. This filler piece is in the form of a steel strip or sheet bent to conform. to the. shape of the turcs 20 are smaller than the apertures 21.

and are so arranged that the spikes 22 contact with one edge thereof and'draw or force the shoulders 7 and 6 against the longitudinal edges of the rail bases. The spikes 22 are in direct contact with the tie plates. In

the apertures 21 are arranged insulating bushings 23 and through the bushings spikes 24 are driven. It isma-nitest that said insulating bushings insulate the spikes 24 from the tieplates. The spikes 22 and 2-1 are out of direct contact with the rails and only the spikes 22 are in electrical connection there with through the tie plates.

The splice bar 8 is completely insulated .ironi' the rail 2 and the tie plate 5 on which said rail rests. Joint bolts 25 are insulated from the splice bar 8 and rail and joint bolts 26 are insulated from splice bar 5). raii 1 and tie plate 4. It is manifest that as rail 1 rests directly on tie plate 4 it is unnecessary'to insulatesplice bar 8 from said rail or said'tie plate in view of the fact that said splice bar is completely insulated from rail 2 and its tic plate. it is also manifest; that as rail 2 rests dircctly on tie plate 5 it is unncccssa v t insulate splice bar 0 from said rail in view of the tact that said splice bar is completely insulated from rail 1.

it is obvious that I provide an insulatcd rail joint. in which a minimum amount of insulating material is used and at the same time provide tic plates under each rail which are in direct el ctrical contact therewith. The mctal till r pieces 17 receive the greater part. ot' the strain occasioned by'thc passing car whccls and to a large cxtcnt prcrcnt the sintcgration oi the fibcr arranged between the bcad ol thc rail and the splice bar. This tiller piccc is particularly cllcctivc in preventing the disintegration of the tibcr when arranged as shown. for thc rrason that the rail rcsts directly on the metal tic plates.

This gives a very rigid support for the rail ends. the entire joint being practically as rigid as anon-insulated joint provided with tie plates.

The filler pieces are approximately onchalf the lengtlnot the splice bars and receive all of the bolts passing through one rail. By ieason of this arrangement it will be unnecessary to completely dismantle the joint when renewing the fiber parts. If it he desired to remove the insulation 12 it is only necessary to remove joint bolts 25 and slighty loosen joint bolts :20. The insultetion 12 may then be removed and a new piece inserted and the bolts 25 replaced. If it then he desired to removcthe insulation 13 joint bolts 26 may be removed thus permitting the insulation 13 to he slid lengthwise from the joint and a new sheet inscrted. it is thusmanifest that at all times one side of thc joint/bolts and both splic bars may be maintained in position in the joint. It is, of course. necessary to draw the spikes fr m splice bar 3 when removing the insulation 12; and to remove the spikes from splice bar 9 when removing the insulation 13.

It is manifest that by my construction and arrangement of insulation and filler pieces, said picccs are reversible and may be used on either side of the rail. It is also clear that the tiller pieces and the insulation material for both sides of the rail arc of the same shape and dimensions. This facilitates the nmnutacturc of the parts and rcndcrs the assembling of the joint :1 simple matter which can be readily :u-complishcd. is no special selection of parts required. it being only ucccssary to arrange the insulation and the tiller pieces so that they will be oppositely disposed or in staggcred'relation to each other.

What I claim is:

l. .\n insulated rail j int c mprising a pair of splicebars. insulating material between the spliccdmrs and the rails. a pair of tic plates one for each rail cud and in direct electrical ontact therewith. a metal tillcr piece for ach rail cud and arranged between the tail and thc uppcr surlacc oi the splicebar. said filler picccs lacing arranged on opposite sidcs ot' the rail. nicans for securing onc mid of curb splice-bar to a tic. said sccuriug means bciug out of contact with tin.- adjoining tic plate.

2. .\n insulated rail joint comprising a pair of splicwbars. rail ends. nsulating mat'crial betwccn said raii curls and the splice bars. one of said rails lining complet ly sulatcd from one splice-bar and thc otln r rail being completely insulated from thc other splice-bar. a llltlttl tillcr pic c intcrp'oscd bctwccn each rail end and a spli -o bar.'said tillcr picccs being on opposite sides of thc rails and at opposite cnds of thc joint There l 3 ti and in eat means for ured for the passage of the joint 1 H L/Ulth,

3. An mmlnlul l'flll jUlIlt'; comprising the met-ting; ends of two ails, a pair of splicelm imulntmg material between the spliceears and the UlllS. a pair of shouldered tie plates one for each rall end, and 111 direct u :mpri the pair of repli s '1 mil in dim tl"illi'litl mhmet therewith, said tie plates 3th 1 st wide: n extenrhng' mltwznrlly beyond the edges of the the longitudinal 111mg maternal he one of .[illiff-ljillth a metal tiller piece for each rail end and arranged between the rails and the upper surfaces of the splice bars, said fillet lwihg: m; ngel on opposite sides of j. m rails and, =1, bppOSllfi sides of the ligmmi berm-en the rails, means for i-ili lti'iliig the insulated end of each splicet mad means being out of contact live-hair. said means passing through the tie. plate.

7. An insulated mil joint comprising a plhe-l ar. rail ends, insulating between and rail ends and the a MW of snhl l lllhll lllfj completely fr m one splive-har and the other zmulnted from the :1 metal filler pint-e interm'h sail end and the s plieelltllg on opposite sides l ppo -i:e (H- td of the joint, plrtt! under oath rail end 'hl contort therewith. waiting outwardly beyond oi the hplicia-bm's meum for secure wl tnpleteiy insulated splice-liar to a means In! :ing through but being out of eontaet with the adjoin- IUaS for wearing the non- S. w fiflllfl l'itlrfi to a tie, said 'r uough th tie plate.

1 mil Mm Hltllhllllgl" two "an joint may :1 metal tiller belt iitl :zm one joint, :1 correwthwu the other rail gz iht lung ihwlntion for lmlmlhzgg a head wtion hen" rind on" rail head, one of :"l'z'll-ii'rt, lwl a lmwtlv opposite nmlnting" time vwojoiu-T lmr and the flanges 9 section living integral head sea-lion, the metal ed relation on oppo- Hills and thohead Sections in nlnlioh lw'lw also in agent-d relaon on o pw lv b ew of the mils.

lt' h will joint 'comprising the oi two rails, Splice bars. in-

1thezaplh-elnrmnidtheruils, ill mil end ml in ele(: mid tie plates lwiilg r ilutlit from each other, lie plates being connected to one s pliee her and unconnected with the i 0 mylmen' i hair.

other splice liar and each of said tie platvs i vxtontling' ()lllWHltll) beyond the splice ball l to \\'l1lt'll it inot, connovtml. 10. An insulated mil joint comprising the l meeting ends of two rails, split-e burs, insulin 1 tion between lllL splice ban and the mils :1 tic plate lllltlcl' ezu'h I'ilil end and in elm-trio contm't therewith, Stlltl tic plates being 010C tl'ically discount-elm] from each other, mm of Silltl tic plntwbeing conncvtetl to one splice 5 bar and unconnnctctl with the other splice bar and each of said tic plates extending out wanlly beyond tin splice bill to which it is nut connew-iml, and each of will. tie plates iving fornmjl Will! u slmnldm' adapted ll} 15 vngug'e (mu longitudinal irtlgu. (if the) DPMQ 0f the mil with whirh it in in awnnlzzct.

F. R. M 1mm.

Images