US1196412A

US1196412A - Insulated rail-joint.

Info

Publication number: US1196412A
Application number: US?444015A
Authority: US
Inventors: Benjamin Wolhaupter
Original assignee: RAIL JOINT CO
Current assignee: RAIL JOINT Co
Priority date: 1915-06-16
Filing date: 1915-06-16
Publication date: 1916-08-29
Anticipated expiration: 1933-08-29

Description

B. WOLHAUPTER. INSULATED RAIL JOINT. APPLICATION FILED JUNE 16. 1915.

Patented Aug. 29,1916.

4 SHEETS-SHEET 2.

B. WOLHAUPTEH. INSULATED RAIL JOINT. APPLICATION FILED/JUNE l6. I915.

Patentd Aug. 29, 1916.

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BENJAMIN WOLHAUPTER,

OF NEW ROCHELLE, NEW YORK, ASSIGNOR TO THE RAIL JOINT COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

INSULATED RAIL-JOINT.

Specification of Letters Patent.

Patented Aug. 29, 1916.

To all whom it may concern:

Be it known that I, BENJAMIN WVoLnAUrrun, a citizen of the United States, residing at New Rochelle, in the county of VVestchester and State of New York, have invented certain new and useful Improvements in Insulated Rail-Joints, of which the following is a specification. I

This invention relates to that type of insulated rail joints wherein the insulating material is held between the joint bar and the under side of the rail head, and has primarily in view a novel form and arrangement of a metal chafing guard which relieves this insulation from the progressive destructive action to which it is ordinarily subjected by the load pressures.

To this end, the invention contemplates the employment of a metal chafing guard in such a manner that the same is permitted to have an independent lateraland longitudinal movement on the head of the joint bar, thereby adapting itself to the various relative movements of the rail and joint bar. At the same time it has no movement on the under side of the rail head insulation and consequently serves to effectively relieve the rail head insulation from destructive actions.

The essential feature of the invention, involved in the use of a metal cap plate for the head of the joint bar, beneath the rail head insulation, so that the said plate may have the independent movements referred to, is susceptible of a variety of modifications, and of application to various'types of rail joints, without departing from the spirit or scope of the invention, but certain preferred and practical embodiments of the latter are shown in the accompanying drawings, in which Figure 1 is a cross sectional view partly in the plane of one of the bolts, and partly at one side of the same. bolt, illustrating a primary form of the invention in its application to an angle bar type of rail joint. Fig. 2 is a side elevation of the same structure, on a section through the bolt, on the line 2-2 of Fig. 1, to expose the mounting of the metal chafing guard, and its relation to the bolt fixtures. Fig. 3 is a detail sectional view on the line 3-3 of Fig. 2 illustrating a form of retaining or check means that may be utilized to assist in preventing outward the effects of E displacement of the metal chafing guard. Flg. 4 1s a view similar to Fig. 1 illustrating a modification, wherein another form of retalnlng or check means is combined with the metal chafing guard to prevent its displacement. Fig. 5 is a view similar to Fig. 2 on the line of section 5-5 of Fig. 4. Fig. 6 s a sectional view similar to Figs. 1 and 4 lllustrating another form of retaining means for the metal chafing guard which prevents displacement thereof, while at the same time not interfering with the three required independent movements thereof. Fig. 7 is a side elevation of the structure shown in Fig. 6 with two of the bolts in section on line 7-7 of said figure. Fig. 8 is a side elevation the same as that of Fig. 7, but illustrating a modification in the form of the metal chafing guard as well as in the manner of retaining it in place, without interference with the independent movements thereof at the important or critical places of the joint. Fig. 9 is-a detail perspective view of the form of chafing guard shown in Fig. 8, and also illustrating the feature of a roughened upper side for the plate which is applicable to all forms.

Similar reference characters designate corresponding parts throughout the several figures of the drawings.

The improved form of metal chafing guard is designated in its entirety by the reference letter G, and is intended to be applicable to any type of insulated rail joint, involving any form of joint or splice bar, where it is desirable to protect the head section of insulation from the destructive effects of the wheel loads. A conventional type of insulated rail jointwill serve for purposes of illustration. Accordingly, there is shown in the drawings an angle bar type of rail joint including the rails 1, the opposite joint bars 2, the joint bolts 3, and properly arranged insulating material. This insulating material, in the form of construction shown, includes an insulation head piece 4.- fitting against the under side of the rail head and bolt insulation, the latter essentially comprising insulating bushings or sleeves exthe bolts and backed up by the metal wash- I ers or-straps 7 interposed between the washer'sG-and the heads and nuts of the bolts, as shown. j

The distinctive feature of the invention resides'in the form'of the metal chafing guard employed, and in the manner of mounting this ments with "respect'to'the joint bar. As to its form, the said metal chafing guard essentially consists of an angle plate having an outer depending web member 8, and an upper inwardly extending cap flange 9, said cap flange having a smooth surface on the under side and a rough surface on the upper side. The web member 8 is arranged over and disposed at the outer side of the joint bar while the cap flange 9 is deflected inwardly from the upper edge of the web member and fits over and upon the upper face of the head of the bar between such face and the under side of the rail head insulation 4. Thus, guard is a cap plate which caps or fits over the head of the bar and serves as achafing member which adapts itself to the relative movements of the rail and bar, and thereby greatly relieves the rail head insulation from the destructive effects of these relative movements and load pressures.

It has been noted that the present invention makes provision whereby the metal chafing guard shall have an independent,

longitudinal, and lateral movement with regard to the joint bar. This is accomplished by leaving the guard free to move on the joint bar head in the several directions, while at the same time retaining the same always in operative position and protected against displacement. Various expedients may be resorted to for this purpose. First,

in this connection, it will be observed byreference to the drawings that the inner angle between the web member 8 and the cap flange 9 is fuller or larger than that of the angle of the upper outer corner of the bar head, so that a clearance space 19 may be provided at this point. The latter occurs at the outside top portion of the joint bar and allows for a slight lateral play of the chafing guard plate, (including its flange 9), and of the joint bar, independently of each other. In addition to this feature of improvement there is associated with the web member 8 of the guard suitable retaining or check means which prevent displacement of the guard from its operative position, and at the same time permits the longitudinal movement as well as of the lateral movement with regard to the joint bar. In its primary form, the web member 8 of the guard is provided in its lower edge with a plurality of keeper notches 10 corresponding to the number and position of the joint guard so that it will have independent, longitudinal, and lateral moveb 10 in effect the metal chafing bolts 3, but sufliciently engage over and receive the external insulating washer 6 of the bolt insulation. This construction admits of the several independent movements referred to, while at the same time restraining the guard against an extreme longitudinal movement. In this form of construction, a supplemental means may e used to prevent an extreme outward lateral movement, or lateral displacement. simple type of supplemental means for this purpose is shown in Fig. 3 of the drawings, and consists of a retaining screw 11 having its head spaced agreater distance from the joint bar than the thickness of the plate web 8 by means of a relatively thick spacing washerl2. The latter element is disposed within an opening 13 in the plate web 8 so that the latter is free to move vertically and longitudinally, and also laterally, but will be checked from extreme outward movement by engagement with the head of the screw 11.

An equivalent modification of the supplemental retaining or check means referred tois shown in Figs. 4 and 5 of the drawings. and simply consists in the employment of an insulating check washer 14 disposed at the outer side of the insulating washer 6, and either separate from or integral with the latter washer. The said insulating check washer 14 is of a greater width than the washer 6 and is also of a greater width than the keeper notches 10, so as to overlap the edges of the latter, but standing free therefrom so as to not interfere with the normal independent movements of the chafing guard with respect to the joint bar.

nother form of construction that may be advantageously employed is shown in Figs. 6 and 7 of the drawings, and consists in slitting the web member or plate 8 segmentally, as at 15, around the bolt receiving holes 16, thus producing seating collars against which clamp the insulating washers (3 of the bolt insulation. In this way, the chafing guard may be clamped with suflicient firmness to prevent' displacement and yet not interfere with the independent movements between the flange 9 and the joint bar head 20. In connection with this modification, it will be observed that the segmental slits 15 leave the entire guard free to spring or yield under pressures that tend to move the clamp flange and contiguous portion of the web member vertically, longitudinally, or laterally.

A still further modification of the invention is suggested in Figs. 8 and 9 of the drawings, wherein an intermediate portion .of the web member .8 is entirely cut away,

large so as to loosely the greater portion of the metal chafing guard, particularly the intermediate portion, is left free to move independently of the joint bar. It will be understood that the greater portion of the independent movements between the chafing guard and the joint bar is necessarily required at the center portion of the joint where the destructive actions are concentrated, and consequently the free movements at this location are facilitated by locating the tongues 18 at the ends of the joint. However, it will be understood that the invention is not limited to such a disposition of elements as shown in the modification referred to, as long as the salient features and requirements of the invention are preserved.

From the foregoing, it is thought that the construction and advantages of the chafing guard improvement will be recognized without further description, and it will also be understood that various changes in. the form, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

I claim:

1. An insulated rail joint including, in combination, a rail, a joint bar, an outside angle plate having a cap fiange fitting the head of the bar, and insulation between said flange and the rail head.

An insulated rail joint including, in combination, a rail, a joint bar, an angle plate having a web member arranged at the outside of the bar and a cap flange overlying the head thereof, and insulation between said flange and the rail head.

An insulated rail joint including, in combination, a rail, a joint bar, an angle plate engaging over the head of the bar and having a clearance from the outside top portion thereof, and insulation between said plate and the rail head.

4. An insulated rail joint including, in combination, a rail, a joint bar, an angle plate engaging over the outside head of the bar and having independent lateral and longitudinal movement, and insulation between said plate and the rail head.

5. An insulated rail joint including, in combination, a rail, a joint bar, an angle plate engaging over the outside head of the bar and having an independent movement, retaining means to prevent displacement of the plate, and insulation between said plate and the rail head.

6. An insulated rail joint including, in combination, a rail, a joint bar, an angle plate having a web member arranged at the outside of the bar and a flange overlying the head of the bar, retaining means cooperating with the web member to prevent displacement of the plate, and insulation between said plate and the rail head.

7. An insulated rail joint including, in combination, a rail, a joint bar, an angle plate having a web member disposed at the outer side of the joint bar and provided with keeper notches loosely engaging over the bolts, said plate also having a cap flange overlying the'head of the bar, retaining means cooperating with the notched portions of the web member to prevent dis placement of the plate, and insulation between the cap flange and the rail head.

8. A rail joint including, in'combination, a rail, a joint bar, a plate fitting the head of the joint bar having a roughened surface on the upper side, and a smooth surface on the lower side to allow relative movement between the plate and the joint bar.

9. An insulated rail joint including, in combination a rail, a joint bar, a plate fitting the head of the joint bar having a roughened surface on the upper side, and a smooth surface on the lower side to allow relative movement between the plate and the joint bar, and insulation between the said plate and the rail head.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

BENJAMIN WOLHAUPTER.

Witnesses C. A. Disnnow, KATHERINE MCNALLY.