US1057406A - Insulated rail-joint. - Google Patents

Description

J. A. BODKIN.

INSULATED RAIL JOINT.

APPLIUATIUN FILED Nov.6,1911.

1,057,406, Patented Apr. 1, 1913.

2 SHEETS-SHEET 1.

J. A. BODKIN.

` INSULATBD RAILv JOINT. APPLICATION FILED Nov. e. 1911.

1,057,406.I muted Apr; 1, 1913.

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JOHNQA. onKIN, or NEW YORK, N. Y.

iNsULA'rED RAIL-Joram'.

Specification of Letters Patent.- l

Patented Apr. 1, 1913.

'Application led November 6, 1911. Serial No. 658,726.

To all 'whom t may concern:

Be it known that I, JOHN A. Bonnin, a citizen of the United States, residing at New York city, county of New York, State of New York, have invented .a certain new and useful Improvementin Insulated Rail- Joints, and declare the following to be a full, clear, and exact description of the same, -such as will enable others skilled in the art to .which it pertains to make and use lthe same, reference being had to the accompanying drawings, which form a part of this specification.

My invention has for its object to produce a simple, rigid and durable joint for mechanically connecting together the ends of rails while insulating the rails from each other..

The various features of novelty whereby my invention is characterized will behereinafter pointed out with particularity in the claims, but for a full understanding of my invention and of its object and advantages, reference may be had to t-he following detailed description taken in connection with the accompanying dra-wings, wherein:

Figure 1 isla side view of two meeting rail ends secured together with my improved joint; Fig. 2 is a horizontal section taken directly beneath the heads being broken away to show the manner of insulating` certain of the bolts; Fig. 3 is an end view looking toward the right in Fig. 1, the rail being shown in section; Fig. 4 is an end view looking toward the left in Fig.v1, therail being in section; and Fig. 5 is a perspective view of one of the joint members.

Referring to the drawings, 1 and 2 represent two'ladjacent rail ends which itris desired to fasten together mechanically while insulating them from each other electrically. V1n accordance with my invention,

`the joint itself, aside from the insulation and the bolts, consists of three pieces, preferably castings. The first of these pieces `comprises a base plate 3 above one end of which lie two splice bar members 4 and 5. The ,members 4 and 5 preferably extend of the rails, parts from one end of the base plate to the middle where they terminate in laterally extending iianges 6 and 7. The members 4 and 5 form with the base plate a shell-like member for receiving one of the rail ends, the rail end being slipped between the two splice bar members until it comes flush with the flanges 6 and 7. The members 4 and 5 fit in the usual way between the head and the. base flange of the rail, while room is left between the base plate and the underside of the base of the rail for a slab of insulating material 8. The members'4 and 5 are secured to the rail by the usual bolts 9 and 10 which pass through these members and the web ofthe rail. It will thus be seen that there is metallic contact between the rail 1 and the splice bar members 4 and 5, whilethe base Iis supported from beneathon a slab of insulating material which rests upon a rigid foundation. The free end of the base plate 3 underlies the second rail end, 2; the slab of insulating material 8 preferably extending throughout the length of the base plate so that both rails rest upon an insulating material. Hal-f length splice bars 11 and 12 engage directly with and are secured to the rail 2 by means of .any usualfastening such as the usual bolts 13 and 14, similar to the bolts 9 and 10. The ends of the splice bar members lland 1Q adjacent to the end of the rail with which they are associated are provided with laterally projecting flanges 15 and 1G similar to the flanges @and 7 Between the flanges G, 7 and the flanges 15, 16is placed a post of insulating material 17, this post preferably extending completely across the joint and taking the configuration of the outer edges of the flanges.v The two sets of ianges are rigidly secured together by means of bolts 18 and 19 extending through the. flanges parallel with the longitudinal axis ofthe rails. The bolts are insulated. preferably from both flanges by means of insulating bushings 2O which surround them. and insulating washers 21 which overlie the outer faces of the flanges. The splice bar mei- Sli Aof .the joint to each other.

hers and l2 are provided with laterally extending foot fianges Q2 and Q3 wliiclif.over:

lie the portion ot the base plate whichwprojects outwardly beyond the sides of the rails, but do not'come in contact with the base plate; thus providing an air gap between the members lland l2 and making room for the insulating slab S, it it be desired to malte the slab wide enough for vthis purpose. The flanges 2Q and 23 are secured to the base plate by means oi. vertical bolts and-.25 which are insulated either from insulating bushings to be placed around the bolts. The insulation oit' the bolts'froin the rllhe base plate may be strengthened by av downwardly pr jecting rib or truss 30, that in 'the arrangement shown comprises a single' memberarranged midway between the ends of the base plate. andl along the longitudinal 'center thereof, so as to reinforce thebase rails.

ilt will thus be seen that l have provided an insulating'joint in which there is no insulation between the rails and the members fare bolted thereto, theI only insulation -bei-ng between the rail ends, between the base plate and the bases of the rails and around the bolts which fasten the members l Furthermore, the, rigid base plate which is integral with the splice bar members engaging with one ot" the rails, gives a very secure support for both rails in the vertical direction, the stifliness 'of the vbase plate being increased by the truss on the underside thereof. The bolts which fasten t-ljie flanges oi the splice bars together and which fasten the separable splice ,bars to the base plate are arranged. at considerable distances from the longiplatc directlyv at lthe juncture of the -tudinal axis of. the rail .so that the bolts all.

have a long ,leverage and exert a powerful resistance against distortion or displace! ment of' one rail relative to theotlier.

I claim: i

l. In combination, two meeting rail ends,

. l \u Y a'base platel underlying both ofvsaidsrail .'ends, splice bars integral `withrone end of the base plate and engaging-with one' ot the rails, splice bars detachably connected to the vother end of the. base plate and connected with the other rail, the meeting ends ofsacl splice vbars being provided with laterally projectiing` flanges, and .means for securing said flanges together.

2. A connectingfdevice'for railway `rails comprising a base plate having at one .end integral half length splice bars, detachable half length splice bars connected to the'other 'end of the base plate, said splice bars having laterally projecting flanges, land means forconnecting said flanges together. As an article of manufacture, a rail joint member comprising a base plate having integral splice 'bars extending from one end of the base plate to the center', said splice bars being. provided with outwardly projecting flanges at .their inner` ends. f

4. As an` article of manufacture, arail joint member comprising a base plate having integral splice bars extending from one end of the base plate to 'the centen-said splice bars being provided with outwardly projecting flanges at their inner ends, and a truss ext-ending downwardly from said base plate.

5.1As an article' or" manufacture, a'rail joint .member comprising a base plate having integral splice bars extending from one end of the base plate to the center, said,

splice bars being provided with: outwardly projecting flanges at their inner ends, and an integral truss extending 'downwardly from the base plate along the center thereof.

G. As an article of manufacture, a base plate having integral half length splice bar members extending from the center toward one end and laterally projecting flanges connecting the inner ends @of 'the splice bar members with the base plate.

7. In combination, two meeting rail ends,

a base plate underlying both of said lrail ends, .half length splice bars lformed in.

tegral with one end of thebase plate and engaging with one of saidrail ends, half length splice bars engaging with the other' rail end, the latter splice bars having foot flanges extending outwardly and lying at some di tance above the base plate, bolts connecting said, foot flanges to said base plate, bolts connecting the splice bars to the rails, said splice bars having laterally pro jecting flanges at their meeting ends, and means for connecting the latter flanges together. f f' 8. ln combination, two meeting rail ends, a base plate underlying both of said rail ends, a slab of iiisulatii'ig material interposed between said base plate and the bases of the rails, said base plate having integral splice' bars at one end thereof, means for In testimony whereof, I, sign this specifiseourlng the aforesaid splice bars to .the oorcatlon in the presence of two witnesses. responding 'rail end, detachable splice bars connected to the other rail end, insulated JOHN A. BODKIN.y connections between the latter splice bars and said base plate, an insulating post. be- 7itnessesz tween said rail ends, and insulated connee- RAY J. VILLSEY,

tions between the two sets of splice bars. C. C. KESLER.

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