US1183335A - Insulated rail-joint. - Google Patents

Description

V. C. ARMSTRONG.

INSULATED RAIL JOINT.

APPLICATION FILED Nov. 30. |914.

l ,1 83,335 Patented May 16, 1916.

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LNSULATED RAIL JOINT.

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m c7-OT EMTONG UNITED STATES PATENT OFFICE.

VICTOR C. ARMSTRONG, OFHACKENSACK, NEW JERSEY, ASSIGNOR TO THE'RAIL JOINT COMPANY, OF NEW YORK, N. Y., A CORPORATION 0F NEW YORK.

INSULATED RAIL-JOINT.

Specification of Letters Patent.

Patented May 16, 1916-.

Application filed November 30, 1914. Serial No. 874,874.

T0 all lwhom t may concern:

Be it known 'that I, Vio'ron C. ARMs'rRoNG, a, citizen of the United States, residing` at Hackensack, in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Insulated Rail-Joints, of which the following 1s a specification.

`his invention relates to insulated rail joints particularly of the type characterized by a steel shoe angle, and wooden or equivalent filler blocks fitting the fishing spaces.

The tyipe of rail joint referred to 1s exemplified by the well known Weber 1nsulated rail joint, in which the upright member of the shoe angle constitutes a bolting plate for the outside of the joint. At the inside side of this style of joint is employed a metal bolting strap which assists to hold together the joint. parts, but has no supporting function to assist in holding the base plate up against the bases of the rails. As a consequence of such construction, the rail ends, under traflic, are susceptible of some movement vertically and independently ot the base plate of the shoe angle, and, under lateral thrust or similar forces, it is therefore possible for the rail ends to be dellected laterally in an outward direction. The eiieet of such deflection is to lift the rail bases oil of' the inner 'free edge portion of the base plate of the shoe angle. This causes straining and weakening of the various parts of the joint, and also creates a destructive force which cuts and mashes out thc base insulation plate. The latter condition prevailsl on account of the chaling and pounding ofthe rail bases on the base insulation as the rails rise and fall.

Accordingly, the primary object of the present invention is to provide an insulated rail joint which fully preserves the established valuable and practical features of the lVeber insulated rail joint, while at the same time supplementing these features by an improvement which contributes a more substantial and firmer base support for the rail ends, combined with an effective organization of the joint parts so that the same will be compactly and firmly held to the rails.

Prefer-able practical embodiments of the invention are shown in the accompanying drawings, in which:

Figure 'l isa top plan view of an insulated rail joint embodying the present invention. Fig. 2 is a cross sectional view on the line 2-2 of Fig. 1. Fig. 3 is a top planyiew of a modified design of rail joint constructed in accordance with the present invention. Fig. 4 is a cross sectional view on the line 4 4 of Fig. 3. Fig. 5 is a cross sectional view on the line 5 5 of Fig. 3.

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

In' carrying forward the invention, no change or alteration is required in the Standard features of the iVeber insulated type of rail joint. Th v,se are maintained, both structurally and functionally, so for purposes of illustration, there is shown in the drawings an embodiinentf my invention incorporated in such a joint; it being seen from the drawings, that the metal shoe angle A, the insulating shoe angle B, and the wooden or equivalent filler members C are of the same construction and occupy the same relative positions as in the usual form of f'cber insulated rail joint. In addition to these conventioiral features of a joint of this type, the distinctive feature of the present invention resides in the employment of what. may be termed a supplemental steel shoe angle l, which corresponds in its angular form to that of the main shoe angle, and comprises a horizontal base member 2 and an upright bolting girder 3 arising from one edge of said base member and integrally or rigidly united therewith.

The important consideration of the present invention is to arrange the supplemental rail-supporting shoe-angle l in such a manner as to secure the novel and useful results referred to. It will be observed that the sul'iplcmental shoe angle l, while disposed within the main shoe angle is disposed in an opposite relation thereto. so that itsl up- 1 right bolting girder member 3 is located at the opposite side of the rails from the upright member of the main shoe angle, and hence lies at the inside of the joint. ln this position, the horizontal base member l of the supplemental shoe angle performs a definite rail-seating and rail supporting function` inasmuch as the rails are seated directly thereon and it occupies a position bctween the rail bases and the upper side of the base section of the insulating shoe angle B.

The supplemental shoe not only7 provides a supportingr base and f -i` tot' .the rails, but the uprightgirder or in. ng' meer ber 3 thereogtI receives the joint bolts il and clamps against the liller bloeit at the inside of the joint. The joint bolts l also extend through the railnr` the tiller blot-lo. at both sides of the rails` and through the upright member ot' the main shoe angle located at the outside ot' the joint. 1t will thus be seen that the upright girder or member 3 of the supplemental shoe angle performs the desirable function of directly receiving the joint bolts so as to provide, in effect, a. rigid supporting connection between the bolts and the inner rail-supporting base member 2,

ith the result oit' improving the general ef- 'eiency and durability of the joint.

To provide means for completing the insulation of a joint of the character described, it is usual to employ outer bolting` straps '5 at the outside of the joint for the nuts of the bolts to bind against, and to interpose insulating strips 6 between such straps and the outer face of the upright member of the main shoe angle. Also, it is necessary, in this form of construction, to divide the supplemental shoe angle into two parts with a sufficient separation between the said parts at the center of the joint. as at T. The conventonal end post insulation may be extended into this separating space between the two parts or sections of the supplemental shoe angle. In connection with the insulating expedients for the joint described, it is to be noted that it is not necessary to provide insulating waslmrsulnler the bolt heads, because these heads can be clamped directly against the bolting,r girder or member l et the supplemental shoe, angle. ".lfhis is a (le-- sirable feature of construction since it effects an economy in the use olE insulation, and permits the employment o'l1 the toured tional button head bolts with oval necks, fitting in eorrespondiugly sl'mped openings to prevent turning of the bolts.

A further novel and praetirnl embodiment of the invention illustrated in Figs. 3, 4 and 5 of the drawings, rulnlrein the supplemental rail snj'ijiorting shoe angle is shown to be of a. modified design. lhis modiiication essentially involves the usel of a supplemental shoe angle designated by the number bieb is also disposed within the main shoe angle and has its upright bolting girder 9 disposed at the inside ot' the joint opposite the cfu-responding member ot' the main shoe auf-,7;r nhich is disposed at the outside of the joint. lint`v in the modified design of supplemental shoe angle, the up right bolting girder or iaen'ioer E) thereof eX tends uninterruptedly the i'ull length of the joint, while i'4 horizonial rail supporting base member lit* is of a length approximately angle equaling only one-halt` the length of the joint, and therefore underlies only one rail ond M. This construction is produced by shearing oii one-half ol the, base portion of the shoe angle section 8 near the center of the joint aa in= lie.ated at ll in Fig. of the dran ings, in the modified construction referred to, it will therefore be seen that while the base member of the supplenlental shoe angle pro\ides a seat and support for one rail end only, the sujiiporting and holdingup etleet of the upright girder or member S) is maintained to a large degree by extending such girder the entire length of the joint so that it will act as a bolting strap for both rail ends. With this construction, however, it is necessary to place a riser plate 12 beneath the other rail end This riser plate is preferably made. of insulating material to insure a thorough and eli'eetive insulation of the joint, and is held in position by' means of insulating rivets l2 or other equivalent and practical fastening means. Also, in this form of construction, in View ot' the metallic contact between the base'members of both shoe angles. it is necessary to thoroughly insulate all. ot the. joint bolts. This is accon'iplished by insulating the bolt ends at the outsidel of the joint in the manner already described, and by insulating the bolt ends :d the inside of the joint by the use of juxtaposed nntal and insulating straps .lilas-MA 'in posed between the bolt heads and the boiling girder member of the supplemental shoe angle.

Other desirable and practical modifications of the invention may be resorted to without departing from the distinctive fea ture thereof which is characterized by the emj'iloymrnt ot' a supjilenuntal steel shoe angie disposed within the main shoe angle and hating its upright gi-rder or member disposed at the inside of the joint and receiving the joint bolts to obtain the supporting cll'ect ol' such bolts, thereby obviat ing the dilirulties and objections met with in the rwiventional 'l'orm oT" W'eber type of rail joint having merely bolting straps at the inside of the joint.

l claim:

l. An insulated rail joint including the rails` a main shoe angle extending the full length of the joint, outer and inner filler members` and a supplemental ,shoe angle disposed within the main shoe angle and clamped against the inner liller, said supplemental shoe angle having a base member eX- tending substantially halt the length of the joint.

2. An insulated rail joint including the rails, a main shoe angle extending the full length o1" the joint, outer and inner filler members, and a supplemental shoe angle disposed within the main shoe angle and having an upright bolting girder clamped against the inner iller, said supplemental.

shoe extending substantially half the length of the joint.

t in insulated rail. joint including'the rails, e inain shoe angle, extending the Afull len th of? the joint,c outer and inner filler me ibers, and a, supplemental Shoe angle disoefl VWithin the main shoe angle in rerletion thereto und provided with A holting girder extending the full length of thejoint and clamped against the inner filler, said supplemental shoe angle also having a base member extending substantially half the length of the joint7 and a rie complementally related to said 'base length of the joint, and a base member for one rail end, and a riser plate complemen- 'tally related to said base member and dis'- posed beneath the other rail end.

5. 'An insulated rail joint including the rails, joint bolts, and outer and inner lillers, a main shoe angle engaging the outer filler, @supplemental shoe angle disposed Within the mein shoe angle and engaging the inner filler, said supplemental shoe angle having an upright bolting girder extending the full length of the joint, and a base member for one rail end, and a riser plate disposed beneath the other rail end.

In testimony whereof I hereunto affix my signature in the presence of two Witnesses.

VICTOR C. ARMSTRONG.

Witnesses:

E. F. SCHERMERHORN, K. MCNALLY.

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