US1466997A - Rail support and fastening - Google Patents

Description

Sept. 4, 1923.

L. GREEN RAIL SUPPORT AND FASTENING 2 Sheets-Sheet 1 Filed March 2. F195. F101. T102 Il- Il.

Sept. 4, 1923.'

` l.. GREEN RAIL SUPPORT AND FASTENING Filed March 2. 1921 2 Sheets-Sheet 2 /3 Inl/@HIEP fuzlf 1551191.01?, yar

UN'iE la T E s LOUIS GREEN, 0F HOWRAH, CAIJCUTTA, BRITISH INDIA.

RAIL SUPPORT .A ND FASTENING.

Application filed March 2, 1921. Serial No. 448,988.

To all whom t may concern Be it known that I, Louis GREEN, residing at 5 Church Road, Howrah, in the suburbs of Calcutta, British India, a subject of the King of Great Britain, have invented cer tain new and useful Rail Supports and Fastenings (for which I filed an application in Great Britain May 2G, 1920, No. 29,704), of which the following is a specification.

This invention refers to improvements in or relating to railway rail chairs or rail supporting means (hereinafter referred to as rail chairs) and in means for holding and securing rails in such chairs and for lock-y ing the tiebars in position in the case' of sleepers which consists of two blocks or pots connected by a tiebar to maintain the gauge of the line. t

In my previous British patent specifications Nos. 11951/1913, 8514/1914, and 8698/1914, I have described certain improvements in reinforced concrete sleepers, and also a special resilient railsupport or chair capable of being used with most types of sleepers, such as those of steel or wood,

but particularly applicable to reinforced concrete sleepers.

It is with such resilient chairs or rail! supports and their attachmentsdesigned for use with bull-headed rails that my present invention more particularly deals.

In order that my invention shall be fully understood I will describe the same with reference to the accompanying drawings, in which Fig. 1 is a side view of my improved resilient chair designed for use with a bullheaded rail showing the manner of supporting the rail on the chair seat and of securing it in position. The chair itself, it will be seen, is fixed in a concrete block by means of its prongs.

Fig. 2 is a side view of the clip shown. in

Fig. 1.

Fig. 3 is an end view of the same.

Fig. #1 is a side view of a modified ilesigny of the same.

Fig. 5 is an end view of the same. i

Fig. 6 isa plan of the chair, rail, and tiebar, and of the means for interlocking these parts.

Fig. 7 is an end view with the same arrangement of parts grouped and interlocked in their final position as they will appear in the road.

In Fig. 8 the resilient chair illustrated differs from that shown in Fig. '7 in being fixed on a wooden bed, instead of on a reinforced -concrete block. V

Fig. 9 is a side view of a clip modified to suit this type of chair.

Fig. 10 is an end view of the same showibng the tongue that fits in a slot vin the chair ase.

Figs. 11 and 12 show a modification of the same.

Fig. 13 is a plan of the assembled parts illustrated in Fig. 8. l V

Fig. 14- is an end view of the same. 1 Referring particularly to Figs. 1 toi:-

1 and 2 in Figs. 1, 6, and 7, represent one type nf resilient chair, in which 1 is the rail seat and 2 the shoulder against which the rail rests. y

3 is a double humped cotterfor locking the tie-bar in place.

-l is the head of the bolt shaped'to. fit the curveof the clip so as not to turn` i 5 is a thin washer the ends of which are bent o-ver the tie-bar after thenut'has been tightened on the bolt.

6 is a clip whose top end is incontact with the web o-f the rail. y

6 is the line of contact between the clip and the rail. y

7 is the line of contact betweenv the shoulder of the chair and the web of the rail.A

6 being below 7 the rail is pressed against the side of the chair and held in its seat,

the clipI 6 engaging with and locking the Referring now more particularly to Figs. l

a t@ unA y 8 is a wooden. block or sleeper which replaces the reinforced concrete slab 3a illustrated on sheet 1. p p 9 and 10 are the extremities of the chair bent horizontally to forma suitable base for resting upon the bed or foundation von the ywooden block or sleeper to which it is attached.

11 is one ofthe rail screws which fix the chair to its bed. Dog spikes or bolts might be used with equal advantage.

12 is a projection on the lower end of the clip.

13 is a slot in 12 ts and locks.

In the constructions shown in Figs. 8 to 14;

the chair base into which The extremities 9 and 10 of the legs of the chair are bent outwards and horizontally to form a base, and holes are punched or drilled in each base 9 and 10 for attaching the chair to its bed S by means ot rail-screws such as ll or spikes or bolts. It will be seen `from the illustration in this case the clip holds the rail at one end and engages with the slot 13 in the base of the chair itself and not with a tie-bar as in Fig. 7l.

In one of my said prior British patent specifications, viz. No. 8698 ot' 1914, l described a resilient chair in which the rail is carried in a bent metal stirrup or loop and wedged in place by a wooden or a metal lzey. ln the same specilication l further described a resilient chair designed for carrying lat-footed rails. I now propose to combine those two types in such a manner as to 'torni a composite chair representing halt o't' one type and hall: of the other. The object of this combination is (inter alia) to reduce the weight and cost ot the chair and eliminate the bending inon'ients near the iunction ,ot the legs of the chair and the concrete, also'tov reduce the bending inoments in other parts of the chairl` particularly inthe stirrup. The angles ot the legs being functions in the equation which determines'the bending moments in the chair, it is possible by giving suitable values to the angles, to reduce all bending moments to a minimum. v

In combination with this chair` l, 2, l propose to use a clip such as shown in TFigs. l to 3, Figs. 4 and 5, Figs. 9 and l0 or Figs. 8, l-'l and l2, and this clip is prolonged and carried upwards along the web ol" the rail to a point 6 just below the point of contact '7 between the rail web and the jaw of the chair on the opposite side of the rail. The functions ot this clip are to hold and lock the tie-bar on the one hand when a tie-bar is used and to secure and hold the rail in the chair on the other. rl`he clip 6 itself is fitted and attached to the chair by means of a bolt 4 and nut passed through corresponding holes in the clip 6a and in the the chair seat l. By tightening the nut on the said bolt it the clip is pressed against the web of the rail, and the rail against the jaw of the chair. l

It is obvious that this action is automatically repeated by the depression of the rail when a train is passing over it, and the ei'lect is to hold the rail irmly and to reduce creep. Normal expansion and contraction of the rail due to variations of tem- .'i perature is not affected by this arrangement. Y Y

lWhat l claim is l. A resilient rail-support or chair, for bull-headed or double-headed rails, for use with sleepers of railways tramways and the like; such rail-support or chair having a horizontal portion located above and clear of the sleepers and adapted to form a seating for the bottom of said rail and having one end of said horizontal portion extending directly i'rom said horizontal portion downwardly and outwardly at an obtuse angle to forni one outwardly inclined leg or member adapted to be secured to the sleeper7 and having the other end of said horizontal portion extending directly from said horizontal portion upwardly and inwardly i. e.at an acute angle to said horizontal portion so as to be adapted to bear against the web of the said rail when the latter is positioned in said chair, and thence curved outwardly upwards and thenextending downwardly to form the other leg or member inclined oppositely to the firstn named leg and adapted to be secured to the sleeper substantially as described.

`2. A resilient rail-'support or chair as claimed in claim l herein, a 'tie-bar to maintain the gauge of the line, slots in the legs of said chair to receive and engage with said tie-ban a metal plate or clip-having a right-angled portionone limbof which is adapted to tit against and support the web of the rail,4 the other liinb being provided with a notch adapted to tit over the edge ot the tie-bar and means to secure said clip in position. A

3. 'A resilient rail-support or chair such as claimed in claim l, a tie-bar to maintain the gauge of the line, slots in the legs of said chair to receive said tie-bar, notches in the lower edge'ot said tie-bar to engage the edge of said slots, a bent metal plate or clip having a right-angled portion, one limb of which right-angled portion is adapted to lit against the web of the rail and the other limb being provided with a bolt hole through which a bolt can be passed through the horizontal portion of the chair and a curved extension or prolongation of this last-named limb curved in the opposite direction to the first-named limb and pro vided with a notch adapted to engage the upper edge of the tie-bar substantially as described.

L. GREEN.

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