US1126536A - Self-locking rail-chair. - Google Patents

Description

A. G. LIBBMANN.

SELF LOCKING RAIL CHAIR.

APPLICATION FILED MAY'13, 1914.

Patented Jan. 26, 1915.

wi/lwwoow man srarns AUGUST G. LIEBMIANN, OF BUTTE, MONTANA, ASSIGNOR ATENT OFFTQE.

TO VIGNOLES RAIL CHAIR COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

SELF-LOCKING RAIL-CHAIR.

Application filed May 13, 1914.

To all whom it may concern Be it known that I, AUGUST G. LIEBMANN, citizen of the United States, residing at Butte, in the county of Silverbow and State of Montana, have invented certain new and useful Improvements in SelfLocking Rail- Chairs, of which the following is a specification.

This invention relates to railway track appliance and particularly to rail chairs.

The main object of the invention is the provision of a rail chair of a particularly simple and cheap construction and peculiarly adapted to be used on easy curves and on old established lines under conditions of high speed traffic.

A further object of the invention is the provision of a rail chair which will permit of a maximum lateral adjustment of the rail without the necessity of removing the primary fastenings securing the chair to the tie and which will also permit of a vertical adjustment of the rail and the use of shims for the support of the rail in the latter case.

Still another object is to so construct the chair that while it will support the rail securely against all lateral or tipping thrust and compensate for emergency strains, yet the rail clamping members will not grip the outer margin of the base flange of the rail, thus eliminating danger of fracture of the rail flange.

A still further object is to so construct the rail clamping members that they will resiliently yield under normal stress and thereby eliminate another cause of rail fracture.

Still another object of the invention is to provide a chair so constructed as to prevent the insertion of the foot of an employee or other person between the abutments of the chair and the rail.

A still further object of the invention is to so form the chair that the parts thereof may be rolled and thefastenings readily assembled and disengaged to permit rail renewals.

Other objects will appear in the course of the following description.

The invention is illustrated in the accompanying drawings, wherein Figure l is a perspective view of a tie, a rail and a rail chair constructed in accordance with the present invention. Fig. 2 is Specification of Letters Patent.

Patented Jan. 26, 1915.

Serial No. 838,368.

a plan view of the construction shown in Fig. 1, and Fig. 3 an end view thereof, the rail being in section.

Corresponding and like parts are referred to in the following description and indicated in all the views of the accompanying drawing by the same reference characters.

Referring to these drawings, A designates a tie and B a rail of any of the standard form.

The rail chair consists of a base-plate 2 having oppositely disposed abutments 3 and 4. These abutments are formed integrally with the base-plate 2 and while the abutments extend parallel to each other they both extend at an angle to the rail B. The abutments are spaced from each other a dis tance greater than the width of the rail base, thus allowing the rail to be shifted between the abutments. Both abutments extend upwardly and the abutment 4: has a vertical inside face which is longitudinally corrugated as at 5 to provide a plurality of longitudinally extending parallel teeth or ribs, as shown clearly in Fig. 3. The abutment 3 is also disposed entirely in a vertical plane, and the inner face of the abutment 3 is formed with a plurality of longitudinally extending ribs or corrugations 8.

The base-plate is held upon the tie by means of screw-spikes 9 of any usual or preferred form and preferably the face of the base-plate inward of the abutments is formed with the countersinks 10 in which the heads of the screw spikes 9 fit so that the upper ends of the screw spikes are flush with the upper face of the base-plate. These screw spikes constitute the primary fastenings whereby the chair is held to the tie and it may be pointed out in this connection that screw spikes may be used with this form of rail chair inasmuch as they do not have to be removed after being once inserted in 0rder to permit lateral adjustment of the rail to gage.

For the purpose of holding the rail securely between the abutments 3 and 4 but permitting the rail to be laterally adjusted or vertically adjusted, or both, as the case may be, there are provided rail braces 11 and 12. Both of these rail braces have the same construction, and therefore a description of one will apply to the other.

The rail brace 12 is adapted to move either vertically or longitudinally and is formed of a web having an outer body portion 13 and two inwardly directed spaced arms 14, the ends of the arms being divergently curved as at 15 to provide heads engaging one beneath the head of the rail at the junction of said head with the web thereof and the other engaging at the junction of the web with the flange of the rail. It will be noted that the body portion 13 of the brace 12 has a depth equal to the depth of the abutment l.

In order to hold the braces in longitudinally adjusted positions and to adjust said braces longitudinally so that they will have wedging engagement with the corresponding abutments, there is provided for each brace a longitudinally extending bolt 17 which bolt passes between the arms 14L as shown clearly in Figs. 1 and 3. On one end of each bolt is disposed a nut 18 and the heads of the bolts engage with hoodshaped clips 19, the hood-shaped portions of which engage over the ends of the corresponding abutments. The body portion of each clip 19 is perforated for the passage of the adjacent bolt 17 and is provided with the strengthening webs 20 above and below the perforation for the bolt. It will be obvious now that by tightening either nut 18 the adjacent wedging member will be forced longitudinally along the abutment until it clamps tightly upon the rail, and that if there is no impediment to the lateral movement of the rail, the tightening up of the nut 18 will cause the rail to move laterally to a degree proportioned to the longitudinal movement of the rail brace.

The operation of my invention will be obvious from what has gone before. In order to shift the rail laterally in one direction, as for instance toward the left in Fig. 3, the rail brace 11 is shifted in one direction along the abutment a toward the converging end of the abutment while the rail brace 12 is shifted longitudinally along the abutment 3 in the opposite direction. When it is desired to shift the rail to the right in Fig. 3 the rail braces 11 and 12 are shifted in the opposite directions to that above described. In each case the rail braces will have wedging engagement between their respective abutments and the rail. If it is desired to elevate the rails, as by means of shims inserted beneath the base thereof, the nuts 18 are removed so as to permit the withdrawal of the rail'braces from engagement with the corrugated faces of the abutments and the rail elevated the required height. The rail braces are then again placed in position being vertically adjusted with regard to the abutments so as to correspond to the elevation of the rail. It is obvious that the teeth or corrugations in the outer ends of the rail braces will-mate with any of the corrugations or teeth on the vertical faces of the abutments, and that, therefore, the rail braces willbe held from vertical movement when they have been adjusted. The rail braces are held from horizontal movement which would tend to move them out of wedging engagement between the rail and the abutments by means of the bolts 17, the nuts 18 and hook-shaped members 19.

It is to be particularly noted that this form of rail chair supports the rail securely and braces it against lateral or tipping thrust. At the same time the base flange of the rail on both sides is entirely free at its margin so that liability of fracture is very greatly reduced, and the rail is yieldingly supported so as to secure that resilioncy which is peculiarly necessary in proper track construction. Thebase-platehas a crosssection approximately that of a channel iron and, therefore, may be readily rolled. The corrugations extend the entire height of the abutments and longitudinally thereof, so that they may also be rolled at the same time.

This chair isparticularly designed for use on easy curves on well ballasted lines where the speed of trains is high. It allows for a maximum adjustment laterally and for maximum adjustment vertically. It is particularly for use on lines where excessive curvature has been eliminated and where there is first class drainage.

It may be noted that this chair conforms to the requirements laid down in the Final Report of the Block Signal, and Train Control Board of the Interstate Commerce Commission in that the chair supports vertical loads and resists horizontal thrusts, resists the tendency of the track to move laterally and longitudinally and resists the overturning movement or tipping thrust of the rail. Further, it permits the rail to be blocked up or shimmed and the gage to be widened or adjusted without necessitating the removal of the primary fastenings and without involving lost motion or change of adjustment. The abutments of the bed plate perform the dual function of holding the rail to gage in the different positions of said rail.

and as a means for supporting the rail braces in a truss-like manner, thus preventing buckling of the bed plate downwardly at its center and curling upwardly at its edges and permitting the employment of a bed plate of ordinary thickness. Inasmuch as the chair eliminates the necessity of constant respiking it adds to the length of life of ties and permits the economical use of treated ties. used with spikes economically as the constant respiking necessitated by the adjustment of the rails tends to so materially reduce the life of the tie as to make the use of treated ties too costly.

These treated ties cannot be it:

Having thus described the invention what 1s claimed as new is 1. A rail chair comprising a base plate having oppositely disposed abutments spaced apart distance greater than the base of a rail to permit the rail to be adjusted laterally and vertically with respect to the base plate, and rail braces coacting with the abutments, the inner faces of both of said abutments being longitudinally corrugated and the outer faces of both of said braces being longitudinally corrugated.

2. In a rail chair, a base plate, an upstanding abutment having its inner face longitudinally corrugated, and a vertically adjustable rail brace co-acting with the abutment and having longitudinally extending corrugations engaging the corrugations on the abutment.

3. In a rail chair, a base-plate having an upstanding abutment, the inner face of which is longitudinally corrugated, a laterally and vertically adjustable rail brace, the outer face of which bears against the abut ment and is correspondingly longitudinally corrugated, and means adjustably engaging the rail brace with the abutment.

4. In a rail chair, a base plate having an upstanding abutment disposed at an angle to a rail supported on said base-plate, the inner face of said abutment being longitudinally corrugated, a laterally and vertically adjustable rail brace having a beveled face disposed in a vertical plane and longitudinally corrugated, and means engaging the rail brace to hold it in its adjusted position with relation to said abutment.

5. A rail chair comprising a base plate having oppositely disposed abutments, said abutments extending parallel to each other but at an inclination to the longitudinal axis of a rail supported upon said baseplate, both of said abutments having longitudinally corrugated inner faces, and laterally and vertically adjustable rail braces adapted to be disposed within said abutments and having inclined outer faces corresponding to the inclination of the abutments and having wedging engagement therewith, said faces being longitudinally corrugated.

6. A rail chair comprising a base plate formed with countersinks in its upper face, rail braces mounted on said rail chair for vertical and lateral movement, and screw spikes passing through perforations in the base plate and having heads engaging said countersinks.

7. A rail chair including a base-plate having an upstanding abutment, and arail brace coacting therewith including spaced resilient arms connected by an integral basal portion, said arms being horizontally disposed and adapted to engage respectively beneath the head and upon the base flange of a rail, the outer face of the basal portion of the rail brace and the inner face of the abutment being corrugated to permit a vertical adjustment of the brace.

8. A rail chair. comprising a base plate having an abutment and a rail brace comprising a basal portion coacting with the abutment and having spaced resilient horizontally disposed arms projecting therefrom adapted to engage respectively beneath the head of the rail and with a base-flange at the intersection with the web of the rail, the lowermost arm being adapted to contact with the base plate and cut away to arch over the margin of the base flange of the rail.

9. In a rail chair, the combination with a base plate, of a semi-resilient rail holding member engageable with a rail at the intersection of the web with the base flange thereof and adjustable with the rail vertically and laterally of the base plate, the under face of said rail holding member being adapted to contact with the base plate and being cut-away to arch over the outer margin of the base flange of the rail.

10. In a rail chair, the combination with a base-plate having spaced upstanding abutments, of vertically adjustable rail clamping members co-acting with the abutments and each having spaced resilient arms, one engageable beneath the head of a rail and the other at the intersection of the base of the rail with the web thereof.

11. In a rail chair, a base-plate having an upstanding abutment disposed at an angle to a rail supported upon the chair, a rail engaging member having an inclined face coacting with the inclined face of the abutment and having wedging engagement therewith, a bolt passing longitudinally through the rail clamping member, and a clipengag ing the end of the abutment with said bolt.

12. In a rail chair, a base-plate having an upstanding abutment disposed at an angle to a rail supported upon the chair, a rail engaging member having an inclined face coacting with the inclined face of the abutment and having wedging engagement therewith, a bolt passing longitudinally through the rail clamping member, and a hoolishaped clip through which the end of the bolt passes, said clip having detachable engagement with the end of the abutment.

13. A rail-chair including a base-plate having an upstanding abutment, the abutment being longitudinally inclined to a rail supported upon the chair, and a rail-engaging member having a beveled outer face coacting with the abutment and having inwardly projecting spaced rail-engaging arms, a bolt passing longitudinally between said arms and having a head at one end, and nut at the other, and a hook-shaped clip through which the head of the bolt passes, said clip engaging with the end of the abutment whereby the rail-engaging member may be shifted longitudinally with relation to the abutment and held in its adjusted position.

14. In a rail chair of the character clescribed, a base-plate having an upstanding member inclined to the transverse axis of the base-plate, a wedging member coacting with the upstanding member, the confronting faces of said members having longitudinally extending corrugations whereby the wedging member may be shifted longitudinally with relation to the upstanding memher and vertically adjusted with relation to said upstanding member.

15. The eombin ation with a tie and a rail supported thereon, of a base-plate having upstanding abutments disposed parallel to each other but at an angle to the rail, primary fastening devices holding the base plate to the tie, oppositely disposed rail braces, each enacting with one of said abutments and having a beveled face engaging therewith, each rail-engaging member having upper and lower spaced resilient arms engaging with the web of the rail at the intersection of the base and head thereof, bolts passing each between the arms of one rail Copies of this patent may be obtained for five cents each, by addressing the brace, nutsengaging said bolts, and a clip for each bolt engaging over the extremity of the corresponding abutment.

16. The combination with a base plate, of a rail adjustable laterallyand vertically with respect to the base plate, means for permanently securing the base plate toa tie, and semi-resilient rail holding members engaging the opposite sides of the rail and adjustable with the rail laterally and vertically of the base plate without disturbing the base plate securing means.

17. A rail chair including a base plate having spaced upstanding abutments, rail holding members having spaced resilient arms adapted to engage beneath the head of a rail and .onthe base'flange thereof, and means interposed between the arms of each rail holding member and co-acting with the adjacent abutment for adjusting the rail holding members longitudinally.

In testimony whereof I affix my signature in presence of two witnesses.

AUGUST G. LIEBMANN.

Witnesses J. D. YOAKLEY, FREDERIG B. WRIGHT.

Commissioner of Patents,

Washington, 13. 6.

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