US1554920A - Insulated rail joint - Google Patents

Description

Sept. 22, 1925. 1,554,932@

' E, F. @CHERMERHGHN INSULATED RAIL JOINT Filed May 4, 1925 2 Sheets-Sheva?l l E. F. QERMEHRN INSULATED RAIL JOINT Sept. 2z, ma 1,554,920

Filed may 4, 1925 '2 sheets-sneer 2 Patented Sept. 22, 1925KQ i UNITED stares rareur lorales. i

EDWARDS d?. SCHERMI-ERRORE, 0F BROOKLYN,NEW YORK, ASSIGNOR TO y"II-Ilf RAIL JOINT COMPANY, `OCE' NEW YORK, N. Y., A CORPORATION OF NEW" YORK.

Application 1filed May 4, `19,25. Serial No. 27,941.

To all ntzom t may concern:

Be "it known that "I, EDWARDS F. SCHERM- LEnnemi, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, `have invented eer- "tain new `and useful Improvements in lnsul'ated Rail Joints,o`f which "the following is "a specification.

.This'i'nvention 'relates to an ii'npro've'ment "in :insulated "rail Vjoints, and primarily has in view an economic use of the metal in the formation `of the joint bar, resulting yin a "very much lightened 'Construction for the joint, whileat'the same `time providing a joint bar improved in the modulus of its head section as well'as in vlits total moment, so as Ito possess the requisite strength and stiffness for resisting "the load and `lateral forces imposed thereon.

Qrdinarily, in the fabrication o'f insulated `rail joints, the rail joint bars `which fit the tishing spaces of the rails are `rather heavy and somewhat massive in construction in order Vnot only Vto provide the necessary strength and stiffness but also -to afford ample bearing area in the bolt holes for the insulating` bushings. `While these factors are lduly taken into consideration by `the presentL invention, a distinctive feature of lthe latter resides `in so deforming "the joint bar, preferably atthe outerrside of its web, as 'to lmaterially decrease `the amount of `metal `in the joint bar. This materially lightens it, yet involves 'such a distribution of metal as to secureadequatestiffness and to `permit the web. of the bar to be disposed quite close to the web of the rail so that the bolt insulating.bushings will have eX- tended or adequate Ybearing'areas in the bolt 1Vholes, and thereby will be protected from cutting or shearing forcesgconsequently prolonged in life.

lll/lith these and other objects in view which will appear to those familiar with the art as fthe Vnature of 'the invention is better understood, the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described, illustrated and claimed, and while the structural features of the invention are necessarily susceptible of a wide range of modification without departing from the spirit thereof, a preferred and practical eml bodiment is shown in the accompanying drawings, in which llligure l is a :sectional perspective view of an insulated rail joint constructed inaccordance with `'the present invention.-

Figure 2 is a view similar to Figure l showing the bolt fastenings and the `outer [filler andfabutment :member removed, therei ltirely change the plan of `metal distribu-V 4tion fin making the joint bar. That in volves a substantiallightening of the weight of the lbar, and preferably is accomplished by rolling the joint lbar designated by the numerall with deformations in the outer i sides of its web 2. These deformations obviously could assumeldifferent forms or shapes but in the `preferred embodiment consist yin makingthe outer side ofthe web comprising the upright rib members Sand the `cavities or reducements il; alternating therewith. The rib members 3 represent the normalwallthiekness for the web of the bar while the cavities or reducements 4 `form 'subnormally Athinned wall portions. "In

other words at spaced locations the web of the joint bar is left with normal wall portions 3, andjin other spaced locations as at l substantial quantities of metal are removed from the web of the joint bar leaving at suchplaces vsubnormally thinned wall portions, thereby substantially and .materially lightening the :joint bar. v Furtherthat the cavities or grooves producing the submirmally thinned 'wall portions extend 'to and preferably somewhat past-thefillets` at the upper yand lowercorners ofithebar web,

inforcing effect of the brackets of metal formed by the upper and lower ends of the wall or rib members 3 which merge respectively into the head and foot portions of the bar. This plan of metal distribution Qrof the joint barofeorrugated formation `more, it willbe observed from the drawings thereby conserving at such points the repermits substantial economy and saving in the use of metal, and at the same time obtains the proper distribution of metal whereby adequate head, kfoot and e web strength may be maintained. y

Furthermore, by vconfining the deformation of the web of the bar to the outside thereof, the bar may be so shaped as to bring its web quite close to the Web of the rail so that the bolt holes 5 through the Web of the bar afford ample bearing area forthe insulating bolt-bushings 6 which receive the joint bolts 7.-

In fabricating an insulated rail joint embodying a joint bar having the structural characteristics described the usual head and base insulation 8 and 9 respectively are employed, and the joint structure is completed, by associating with each joint bar an outer filler member 10, insulating Washer 11 and metal Washer plate l2.

The outer filler member 10 may be made of insulating material or of a cheap quality of steel and is in the form of a plate or bar having a fiat outer face 13 constituting an abutment against which flatly bears the insulating Washer l1 and at its inner side the filler member is corrugated producing alternate ribs 14 and channels 15 Which are complements of and register With the ribs 8 and grooves 4 respectively of the corrugated outer side of the Web 2 of the rail joint bar. In brief, the inner side of the filler member 10 is corrugated to correspond to and interlock With the correspondingly corrugated -outer side of the Web of the joint bar so that the 'filler member Will constitute a light but substantial abutment against Which the insulating Washers 11 are clamped by the metal Washers 12 When the nuts 16 of the bolts are tightened.

F rom the construction described it Will be seen that not only is the joint materially lightened in Weight throughout but a very thorough and satisfactory insulation for the joint is permitted While at the same time a very extended and ample bearing area is provided for the bolt bearing bushings 6 in the bolt holes 5 of the joint bars, which bolt holes register with the bolt holes 5 in the outer filler members 10. In the embodiment shown in the drawings the joint bar illustrated is of the well known continuous type but it will of course be understood that the improvements are applicable to joint bars of the angle type, and While the outer filler member 10 is shown as a continuous strip or bar the same may be made in separate pieces, and other minor modifications resorted to Without departing from the spirit or sacrificing any of the advantages of the invention.

I claim 1. An insulated rail joint including a joint bar insulated at its inner side from the rail and having the outer side of its Web deformed to produce subnormally lightened Web portions, and clamping means interlocking With said deformed part of the bar Web.

2. An insulated rail joint including a joint bar insulated at its inner side from the rail and having the outer side of its Web deformed to produce subnormally lightened Web portions, and insulated clamping means interlocking with said deformed part of the bar Web. y

3. An insulated rail joint including a joint bar insulated at its inner side from the rail and having its outer side formed With corrugations producing subnormally thin portions in the Web, and clamping means interlocking With the corrugated outer side of the bar.

4. An insulated rail joint including a joint bar insulated at its inner side from the rail and having its outer side deformed to produce vertically disposed and alternately arranged depressions forming subnormally thin Web portions, and clamping means interlocking with the outer side of the bar web.

5. An insulated rail joint including a joint bar insulated at its inner side from the rail and provided at its outer side with cavities forming subnormally thinned Web portions, a filler member having ribs engaging and interlocking With the cavities of the bar web, and means for clamping the filler member in place.

6. An insulated rail joint including a joint bar insulated at its inner side from the rail and provided at its outer side With cavities forming subnormally thinned Web portions, a filler member having ribs engaging and interlocking With the cavities of the bar Web, and insulated means for clamping the filler member in place. i

7. An insulated rail joint including a joint barinsulated at'its inner side from the rail and provided at the outer side of its web with alternating portions respectively of normal and subnormal thickness, a filler member or p late provided at its inner side With alternating ribs and channels interlocking With the deformed outer side of the bar web, and insulated bolt clamping means engaging the filler member or plate.

Intestimony whereof I hereunto affix my signature.

EDWARDS r. soHERMEnHoRN.

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