US1220250A

US1220250A - Rail-joint.

Info

Publication number: US1220250A
Application number: US11699416A
Authority: US
Inventors: James Madden
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-08-26
Filing date: 1916-08-26
Publication date: 1917-03-27
Anticipated expiration: 1934-03-27

Description

J. MADDEN. RAIL JOINT- APPLICATION FILED AUG.25{I9I6.

1,220,250. Patented Mar. 27, 1917.

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(762811. q/u'vlmzoo James a J. MADDEN.

RAIL JOINT.

APPLICATION FILED AUG-26,1916.

1,220,250. Patentd Mar. 27, 1917.

2 SHEETSSHEET 2.

anumtoz Jrmes fiad'clew.

Witness unrrnn STATES PATENT ormcn.

JAMES MADDEN, or TURNER, KANSAS.

RAIL-JOINT;

Application filed August 26, 1916.

To all whom it may concern:

Be it known that I, J AMES MADDEN, a citizen of the United States, residing at Turner, in the county of \Vyandotte, State of Kansas, have invented certain new and useful Improvements in Rail-Joints, of which the following is a full and exact specification.

The present invention relates to rail joints, and aims to devise an improved construction of insulated rail joint in which provision is made for holding the parts in a relation which will guard against mutilation of the insulating material at the ends of the rails when the latter are affected by temper ature changes. For this purpose the rails are joined by bolts and clamping means in a manner holding the rail ends securely against any material relative movement. It is also an object to devise a rigid, strong and durable construction which will be'effective for the desired purpose as well as comparatively inexpensive to manufacture.

lVith this general object in view, the invention will now be described with reference to the accompanying drawings illustrating one form of embodiment of the improvements, after which those features and combinations deemed to be novel will be set forth and defined in the appended claims.

In the drawings Figure 1 is a side elevation of a rail joint constructed in accordance with the present invention;

Figs. 2 and 8 are horizontal sections on the lines IIII and III'III, respectively, of Fig. 1;

Figs. 4 and 5 are transverse sections on the lines IV'IV and V-V, respectively, of F 1 but taken on a larger scale.

Fig. 6 is a perspective view of the various elements which are attached to the rails for forming the joint; and

Fig. 7 is a horizontal section on the line VIIVII of Fig. 1.

Referring to the drawings in detail, the end portions2, 2, of the rails are shown as separated by the usual section of insulation 4, and each rail end 2 is provided with a pair of

channel plates

6, 6, adapted to embrace the opposite faces thereof in clamping relation. One of each of said pairs of clamping plates 6 is provided with a rail gripping portion 7 formed with a channel 8 adapted to embrace the base of the rail and terminating in a wedge socket portion 10 adapted to receive Specification of Letters Patent.

Patented Mar. 27,1911

Serial No. 116,994.

a wedge piece or tenon 12 carried by the other clamping plate of each pair, said tenon 12 being formed on a similar rail gripping portion 7 provided on the corresponding plate 6 for gripping the opposite side of the base of the rail. These rail gripping portions are either formed integral with the plates 6, or securely united therewith in any approved manner, and the wedge piece 12 and the socket 10 are formed with the correspondingly inclined surfaces 11, adapted, as the tenon 12 is received in the socket 10 (see Figs. 3 and 4:, showing the inclination of said surfaces 11 slightly exaggerated), to cause the plates 6 with their portions 7 to move into tight clamping engagement with the rail.

Seated against the plates 6 at one side of the joint (or on the inside of the rails with relation to the track) is a continuous connecting bar 14: suitably insulated from one of said plates 6 by the sheet of fiber material 16. On the opposite side ofthe rails the plates 6 have seated therein a pair of short filler bars 18, outside which is applied the continuous angle plate 20, the vertical portion of which embraces both said bars 18 and the lower edges of the corresponding plates 6 (see Fig. 5) while the horizontal portion of said plate 20 extends beneath and supports said

end portions

2, 2, of the rails, with the ends of plate 20 abutting against said portions 7, the inner face of one half of the plate 20 being lined with the insulating fabric 22 as shown in Fig. 7. a The various elements above enumerated are provided with suitable bolt openings 24;, as illustrated, to accommodate bolts 26 for holding the parts of the joint when assembled in the relation shown and described, the

outer ends of the bolts being fitted with the insulating sleeves 28. v

It will thus be apparent that a simple and effective construction has been devised for fulfilling the objects of the invention. As previously constructed, with insulation between the adjoining ends of the rails and bolt connections adapted to permit slight movements of the end portions of the rails due to temperature changes, the tendency is to damage the insulation at the joint and require repeated cutting of the rails at different points to accommodate changed conditions. With the improved construction the object is to provide a substantially solid joint structure in which relative movement of the rail end portions will be practically stopped and the temperature changes in the rails prevented from causing the rail terminals to jam the insulation. It will be noted that the plates 6 are assembled by applying first the plates provided with the socket portions 10, and then the companion plates are driven into position endwise, the wedge pieces 12 entering the sockets 10 and the wedging surfaces comprising the inclined faces 11 cooperating to draw the plates 6 with their rail-gripping portions 7 into tight and secure clamping engagement with the opposite sides of the rails. The cross-section of the rails is in effect increased at the joint and greater bearing afforded for the. action of the bolts, and with the latter in place and properly held by the nuts 30, and with plate 20 abutting against said portions 7, it will be seen that a firm and strong joint structure is provided in which the parts are securely held against any material relative movement taking place within the joint proper.

While the foregoing represents what is now deemed to constitute the preferred form of embodiment of the invention, the right is reserved to such formal changes and modifications as may fairly fall within the scope of the appended claims.

Claims:

1. An insulated rail joint comprising insulated rail end portions, plate members carried by each of said end portions, means for securing said end portions together with said members embracing opposite faces thereof, and additional interengaging means acting upon relative longitudinal movement of said members to wedge the latter tightly against said opposite faces.

2. An insulated rail joint comprising insulating rail end portions, separate plate members carried by each of-said end portions, means connecting said plate members and securing the same to the opposite faces of said end portions, and interengaging means carried by the plate members of each end portion and cooperating to hold said members in tight gripping engagement with said end portions.

, 3. An insulated rail joint comprising insulated rail end portions, and separate plate members carried by each of said end' portions and provided with inter-engaging means coacting upon relative longitudinal movement of said members to wedge the latter into tight clamping engagement with the opposite sides of said end portions.

l. An insulated rail joint comprising insulated rail end portions, separate plate members for securing said end portions together, said plate members being formed with eX- tensions embracing the base of the corresponding rail and provided with cooperating wedge and wedge socket portions adapted to cause said plate members to gripthe opposite sides of the corresponding end portion, and bolts for securing the parts in joint relation.

5. An insulated rail joint comprising insulated rail end portions, separate plate 1nembers carried by said end portions, connecting members for securing said end portions together, the plate members of each pair of said plate members being formed with extensions embracing the base of the corresponding rail and provided with cooperating wedge and socket portions adapted to cause said plate. members to grip the opposite sides of the corresponding end portion, and bolts for securing the parts in oint relation.

6. An insulated railjoint comprising insulated rail end portions provided with extensions projecting laterally therefrom, and r a bar secured to and connecting said end portions and extending in abutting relation with said extensions.

7. An insulated rail joint comprising insulated rail end portions, members secured to said end portions and provided with means for Wedging said members into tight clamping engagement with said end portions, and a bar secured to and connecting said end portions and extending into abutting relation with said wedging means.

8. An insulated rail joint comprising insulated rail end portions, plate members secured to said end portions and provided with means acting to wedge said members into tight clamping engagement with said end portions, and means providing an abutment for engagement with said wedging means upon relative approaching movement of said rail end portions.

JAMES MADDEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.