US837903A - Insulated rail-joint. - Google Patents

Description

M. 1). HANLON/ INSULATED RAIL JOINT.

PATENTED DEC. 4

APPLIOATION FILED APB-4,1906.

MN M J/ .1 @N 0 Ill/1 A n .wN

MARQUli-l D. HANLON, OF WlLKlNSBU (12, PENNSYLVANIA.

insoLnrEn RAiL JOEMT no, cameos.

Specification of Letters Patent.

Patented Dec. 4, 1906.

Application filed April 4,1906. Serial lie. 309,866,

To (LZZ whom it iii/(1 1,1 concern: I

Be it known that l, llLlARQUIS D. HANLON, a citizen of the United States, residing at Vlilkinsburg, Allegheny county, State of Pennsylvania, have invented a new and useiul insulated Rail-Joint, of which the following is a specifihation.

My invention relates to a novel construction or insulated rail-joint by the eniploymerit of which the desired insulation is eflected under all conditions.

it has heretofore been proposed to place the insulating material betwecnthe rail and the splice-bar, said material being in contact with both the rail and the splice-bar over its entire surface; but owing to the small area under the head of the rail, at'which point the greatest pressure is exerted, this insulation is rapidly worn away. i

it is the object ofmy present invention to overcome this defect, which. has heretofore been present in devices of this character, and to this eiid I employ between the rail and the insulation fillers having projections therefrom. ,and the upper edges exposed to the insulating material, the area of which is greater than the area of the under side-of the railhead.

To the above ends my invention consists of a novel construction of insulated rail-joint in which two splicing-bars are employed,

there being contiguous to each splicing-bar an insulating-plate, and between this plate and the web of the rail and the under side of the rail-head is inserted a filler-block, the upper edge of which is provided with projections or flanges exposedto the insulating material, the area of which is greater than the area of the under side of the rail-head.

it further consists of a novel construction of filler-block and a novel construction of a splicingbar, between which and said fillerblock tne insulating member is located it further consists of other novel features of construction, all as will be hereinafter fully set forth.

in the accompanying drawings I have shown preferred embodiment of my invention which has been found in practice to give Very good and reliable results.

Figure 1 represents a plan view of an-insulatod rail-joint embodying my invention. Fig. 2 represents a sectional View on line 00,

Fig. i. Fig. 3 represents a sectional View on line 1 y, i2,

Similar numerals of reference indicate corresponding parts in the figures.

1 Referring to the drawings, 1 designates a rail of any usual or conventional type having ahead 2, a web 3, and a base 4.

5 designates a splice-bar which is deflected or ofiset, as. seen at 6, from which projects the longitudinal extension 7, which overlaps the adjacent rail. This longitudinal exten sion 7 has angularly-inclined inner faces 8 9 10 and the face 11, which is a continuation of the face 10 and inclines upwardly therefrom. The portion 5 of the splice is the original as abutting against the insulating material, but in reality is beyond the latter. The portion of the-spl1ce overlying the insulatmg throughout its length.

13 designates an lnsulating-plate which is splice-bar and comprises the portions 14, 15,

11 when the parts are in assembled position.

ail and is recessed, as seen at 19, the upper end of said filler-block being adapted to engage the under side of the rail-head and the fillet formed between the head of the rail and the web portion thereof.

21 designates a flange upper end of the filling-block 18, the area of said projection, which is exposed to the insulating fiber or plate, being greater than the area of the underside of the railhead,' at 'which point the greatest pressure is exerted, as is well known in the art. The outer face of the filler member 18 and the projection 21 thereof is so formed that it closely engages the portions 15, 16, and 17 of the insulating member 13, it being seen that when the parts Y, are in assembled position the upper end 17 of 1 this insulating niembcr extends above the splice-bar and the filler member in order that rolled splicesection, and its lower edge is which appears in the section shown in Fig. 2

material is of the section 7 and is uniform 16, and 1 7, which engage the faces 8, 9, 10, and

18 designates a filler block or member the inner face of which engages the web of the or projection'at the deflected to conform to the'inner face of the I insulated in the usual manner.

bars are deliected or recessed, as seen at 23,

26 is interposed axwasher 28.

there will be no liabilityof dirt or other ma terial bridging over or covering the upper end of the insulating material, and thus pro ducing defective insulation between the diferent members at this point. In the pres ent instance and for convenience of illustration I have, with a View to economy, shown the splicebar insulated with respect to only a single rail instead of extended over both rails.

22 designates the fastening-bolts, which are The spliceand in this recess is seated an apertured block 24-, between which and the bolt an insulated bushing 25 is inserted, said bolt'extending through the insulated members 14 and through the web 3 of the rail, as is apparent from Figs. 2 and 3, said insulating-bushing havin integral therewith a flange 26, al-

'usual manner, the ends of said insulatingplates almtting against the extension 7 of the splice-bars. l have shown one portion of the rolled spliced bar-sections as bolted'directly to the rail. and the extension'of'th'e splice-bar overlapping the other rail as being ofl'set a sutiicient distance to permit the interposition of the filler-blocks and the insulat ng members instead or" overlapping both rails, as

may sometimes be desirable.

From the above description it will be apparent that I have produced a novel and use ful construction of insulated rail-joint which embodies the features of advantage enumerated as desired in the statement of invention and. the above description, and while I have illustrated and described the preferred embodiment of the same it is to be understood that it is susceptible of modification in various' particulars without departing from the spirit and scope of the invention or sacrificing any of its advantages.

Having th'usdescribed my invention, what I "claim as new, and desire to secure by Letters'Pat-ent, 13- r 1. in an insulated rail joint, splice-bars,

Hi sulating members contiguous thereto and raihhe'ad, said fi 'l'e'r members eachthaving a projection extending therefrom and contact- .filler members contiguous to insulating members and en aging the-"under side of the ihg with said insulating members, the area of said projections being greater than the area tacting with said insulating members, the

areas of said projections being greater than the area of the' under side of the rail-head,

the ends of the insulating members-being upturned beyond the splice bars and filler members, and fastening means for securing said members and splice-bars with respect to the rail.

3. In an insulated rail joint, insulating members engaging the base of the rail, filler members engaging the web of the rail and the under side of the-head thereof, said filler members having projections extending therefrom with an area exposed to the insulating members greater than the area of the under side of the rail-head, splice-bars engaging said insulating members, the ends of the insulating members being upturned beyond the splice-bars and filler members and means engaging said splice-bars for securing the parts in assembled position.

4. In an insulated rail joint, insulating members engaging the base of the rail, filler members engaging the web of the rail and the under side of thehead thereof, said filler members having projections extendingtherefrom with an area exposed to the insulating members greater than the 'area of the under side of the rail-head, splice-bars enga ing said insulating members, tl1e upper en s of said insulating members terminating in a plane above the upper ends of said projections and said splice-bars, and means for securin the parts in assembled position.

5.' in an. insulated rail-joint, insulated members engaging the base of the rail, filler members engaging theweb of the rail and the under side of the head thereof, said filler members having projections extending therefrom with an area exposed to the insulating members greater than the' area or the under side of the rail-head, sphce bars hav mg portions thereof engaging said insulat ing members, said portions being uniformthroiighout their length, the ends of the insulating members being upturned beyond and receiving the ends of the splice-bars and filler members, and means for securing the parts in assembled position.

6. In an insulated rail-joint, splicebars secured directly to the rail and having projections deflected therefrom and overlapping the other rail, filler members engaging the under side of the rail-head and the web of the rail, said members having projections ex eerx,

tending therefifem, insulating members en- I gaging the base of the rail and said filler members, seidsplieebers engaging said insulating members,' the area of said projections exposed to Said ineulefiing members being of e greater area thenthe area of the un- "der slde of the Tall-heed, and means engagmg eee B IvIARQU 18' D. HANLOH Witnesses G. F. WOOD-SMITH,

ROBERT KANE

Images