US1765265A - Rail chair - Google Patents

Description

June 1930- J. P. GRIFFITHS Er AL RAIL CHAIR Filed Oct. 26, 1928 2 Sheets-Sheet 1 INVENTORS flawed,

June 17, 1930. J; 1 GRIFFITHS El AL 1,765,265

RAIL CHAIR Filed 001'.- 26, 1928 2 Sheets-Sheet 2 j c v v I l d l WW W W amt :2

Patented June 17, 1930 UNITED? STATES.

PATENT] OFFICE.

JAMES PAUL GRIFFITHS, oE DURBAN, "NATAL; sonrn AE-iaIcA, AND WILLIAM srmaET- WILSON, DEoEAsED, E TE or DURBAN, NAT L, sown AFRICA, BY EDMUND M. LAUGHTON AND EDMUND I-I. CLEMMANS, EXECUTORS RAIL ciiArR Application filed October 26, 1928, Serial No. 315,336, and in- Union of South Africa November 10,1927;

This invention relates to rail chairs primarily intendedfor railway rails. It relates more particularly to rail chairs of the kind including a cast steel or other metal bedplate or base plate having two raised lugs or. upstanding projections adapted to be disposed or arranged one on eitherside of the flange or base portion of the rail.-

The object of thepr'esent invention is to construct a rail chair of the type above referred to which ,will serve effectively to retain the rail in position and prevent both the creeping of the rail in a horizontal direction and any vertical lift. 1

In carrying out the invention in one form we provide, a base portion or bed plate which as usual is provided with holes through which pass coach or other screws for fastening the base or bed plate to the sleeper or its equivalent. This base or bed plate, which may be made of cast steel, is constructed with two lugs or upstanding projections, one extending considerably higher'than the other, and a flat part between such projections uponwhich the rail is arranged. t I j The higher or larger lug or proje'ctiolris rabbeted, recessed, or hollowed out in 1ts lower portionnext the flat central portion of the chair, andsaid rabbet' or rece'ss'may be tapered or made gradually shallower from one side of the lugto' the other, and taperedor made gradually narrower from top to'bottom frornone side of the lug to the other.

The other and portion is preferably also rabbeted, recessed or hollowed out, so that the one side of the base of the rail will liein'suchrabbetor' recess. 1 The other side portion of. the baseofthe rail lies opposite the rabbet inthenfirst mentioned and largerlug orprojection, and is held in position by a key or wedge which is preferably formed with a double taper. 5;; u Between the web-ofithe'rail and the face ofthe higher lug orprojection: a wedgeshaped block or. cushion of ;wo od 'orother suitable relatively soft material is inserted, the face of thelug or pro ection being suitlug or projectil lg ably inclined so that the wedge bears against it along its whole length. I

The key or wedge which serves for. keep ing the rail in position on the chair is rabbeted or provided with a longitudinal recessalong its bottom edge on the side adjacent'the rail, so that the edge of the base of the rail lies in said'rabbet. It is also rabbeted or provided with a longitndinalrecess along its diagonally opposite edge, and through the opening provided by said rabbet or recess passes a bolt preferably provided with a head. portion at right angles thereto. The head portion of the bolt is placed against the side of the lug or projection nearest the smaller end of the wedge, and a washer and, say, a wing nut are placed upon the other end of the bolt. The washer bears against the larger end of the wedge, and projects for some distance beyond the same. On tightening the nut the washer acts to force the wedge into the recess formed in the lug or projection which acts tightlyto fix the rail on the chair between the wedge and'the lug or projection formed 7 If desired, a long1tu'cl-inalrecess maybe formed in the higher lug or projection,and'

a bolt be inserted therein'having ahead at right anglesthereto and provided with a nut and washer, which might serve positivelyto retain the wooden block or cushion in posi tion; I J j In a modified form of the invention suit able more particularly 'for'do'uble check rails, one of the higher lugs or projections and the wedge and woodenblock 0r cushion could be provided at either side of the chair, and-a similar lug or projection be-provid'ed centrally longitudinally of thechair between i the rails, and be rabbeted or hollowed at both sides to take the opposite bases-of thejtworails. 1 I In a further modified form of :the' .in-

edges of the vention, suitable more particularly for use on substantially level tracks, the high lugs or projections could be dispensed with, and two smaller lugs or projections be provided one on either side of the chair with the rail resting on the chair between them. In this case one of. the lugs or projections could be hollowed out orv rabbeted to take the preferably double tapered key or wedge, and

the other could be hollowed out or rabbeted to take the edge of the base of the rail. In

this form of the invention the wedge would be provided w1th'a screw threaded extens on ora thumb screw, or have a bolt passing longitudinally therethrougli. Awasher on the bolt or screw threaded extension would rest against-the side of the chair preferably engagmg therewith above and below the rabbet, and the wedge could be 7 support the rail through the web, and acts to prevent or minimize knocking or concussion due to lateral, downward or upward 7 pressure, so promoting. smooth running of -rail web in section.

.the vehicles on the rails.

The bolt, thumb-screw, or equivalent, act to secure both the key and the wooden cushion or wedge in position, locking themeffectively and preventing the possibility of their coming out of position.

7 Fig. l'is a vertical elevation of the flat foot rail chair specially designed for curves and gradients. 7 7

Fig. 2 is a'plan view of Fig. 1 showing Fig. 3 is a vertical elevation of a' similar type'asFig. 1, but is designed for the double check rail. p

Fig. dis a vertical elevation of a modified type for use on levels.

' Fig; 5 is a plan-view of Fig; 4 showing rail web in section.

' As shown in Figures'l and 2 a cast base plate a is secured to the sleeper (not shown) by means of the ordinary coach screws 2'. This base plate which, is cast has the .b and 0 cast onit. port the woodencushion 7 andis hol'lowed b is carried up to supout at the base to receive the double rabbeted and double tapered key d, which is inserted with the thumb and finger and pushed home.

The wooden cushion 71,- is then put place,

and the bolt'e is inserted, the washer and nut.

' f adjusted which effectively prevents'thepos sibility of the key'd! or the cushion h from withdrawing. 1 The lug .0, is caston the inner tightening up the nut I c1al features of this patent.

to the chair two lugs side of the base plate, and is for gripping the inner flange of the rails.

The other side of the web 7 may be similarly gripped or alternatively the construction shown may be employed. 'I igure'S is a similarly cast chair but with the two outer lugs 19 carried up as shown, for use with a check rail. The cast piece Z holds the flanges of both rails.

The chair of F igures' l and 5 is also similarly constructed but is intended for use on the level, for yards, sidings, etc., the lug I) being cast similarly to that of 0 but hollowed out at the base to receive the double tapered and rabbeted key whichis effectively secured with a screw on the end at f with washer and nut to drawing. 7 j

' It will be noted that the thumb screw or bolt and cushion are especially new and novel in this treatment and v WVhat we claim is: r

1. 'A chair for railway rails or the like comprising a bed platehaving two lugs so located as to permit the placing of a rail between them, one of said lugs adapted to engage one lateral edge of the rail flange,

the other lug having swithinfit a keyway which is double tapered toward one end thereof,'a wedge-shaped key which is double tapered in coinpleinental relation to the keyway, said key being adapted to engage within said keyway to coact therewith and with the other lateral edge of the rail flange to anchor the rail against both the first lug and the bed pl'ate. V

2. Achair for railway rails or the like prevent the possibility of its with use, and are specomprising a bed plate having two lugs so I located as to permit the lowering of a rail into place between them, one of said lugs adapted to engage one'lateral edge of ithe rail flange, the other lug having along its inner face a rabbet, which is so shaped that boththe width and height of said rabbet taper toward one end thereof; akey for co operative engagement with thetapered walls of the rabbet and the adjacent lateral edge 7 of the rail-flange and means cooperating with the key andthe lastmentioned lug to draw the key into the rabbet to anchor the rail 3. A chair for railwayrails or the' like comprising a bed plate having twolugs so located as to permit the loweringof a rail between them, one of said lugs adapted to engage one side of the rail fiange, the other lug having a substantially vertical inner 7 face inclined 'with respect to the rail web and also having at ltSfbEISG a keywayvwhich is double, tapered toward one 12 5' end thereof; 7

a wedge-shaped key whichi'is double: tapered 1n compl'emental relation to the keyway, the s tapered sides of ada ited' to coact with each" other;'-a wedge said key and keyway being a ofcushioning material disposed between the rail web and said latter lug, said wedge being tapered in the same direction as said key and complementing and coacting with the inclined face of said lug; and means adapted to'force and securely hold said" key into the keyway and said wedge into wedging position, whereby to anchor the rail. 7

4. A chair for railway rails or the like comprising a bed plate having two lugs so located as to permit the placing of a rail between them, one of said lugs adapted to engage one side of the rail flange, the other lug having a substantially vertical inner face inclined with respect to the rail web and also having at its base a keyway which is double tapered toward one end thereof; a wedge-shaped key which has a rabbet along its upper inner edge, and is double tapered in complemental relation to the keyway, a wedge of cushioning material disposed between the rail web and'said latter lug, said wedge being tapered in the same direction as said key and complementing and coacting with the inclined face of said lug; and a bolt, nut and washer, the bolt extending through said rabbet, the head of the bolt seating upon one side of said latter l'ug, the other end of the bolt having thereon the nut and washer, said washer seating upon the larger ends of both the key and the wedge, whereby when r the nut is taken up on the bolt, both the key and the wedge are forced and held into looking position and the rail is anchored against both the first lug and the bed plate.

Signed at Durban in the Natal Province of the Union of South Africa, on this the 15th day of Sept, 1928.

I J. P. GRIFFITHS.

E. M. LAUGHTON, ED. H. GLEMMANS, Ew ecutors Estate Late William. Street-Wilson.

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