US733689A - Pivot blade-joint for railways. - Google Patents

Description

No. 738,689. PATENTED JULY 14, 1903.

W. WATTS.

PIVOT BLADE JOINT FOR RAILWAYS.

APPLICATION FILED MAR. 11, 1903.

N0 MODEL.

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UNITED STATES Patented July 14, 1903.

ATENT QFFICE.

AUSTRALIA,

PIVOT BLADE-JOINT FO R RAILWAYS.

SPECIFICATION forming part of Letters Patent N 0. 733,689, dated July 14, 1903.

Application filed March 11, 1903. Serial No, 147,286. (No model.)

To all whom it may concern:

Be it known that I, WALTER \VATTS, a subject of King Edward VII of Great Britain, residing at Midland Junction, Western Australia, in the Commonwealth. of Australia, have invented certain new and useful Pivot Blade-Joints for Railways, of which the following is a specification.

The object of this invention is to cause railway blade-joints to be easily and smoothly operated and in a true radial manner.

The present blade-joints are operated by being sprung inward and outward, so causing an undesirable straining action on the holding-bolts, the fish-plates, and the blade itself.

The constitution of my invention essentially consists in forming a rounded projection at the thick or butt end of the bladejoint. This projection acts as a trunnion, pivot, or axis for the blade-joint, and such pivot works and nests within corresponding semicircular recesses or sockets, which are formed companionwise in the fish-plate and in what is known as the distance or heel block and which block is secured to the stockrail by means of countersunk bolts.

The heel-block and the inside clip-platethat is, the plate which holds the lead-railare both of a combination forn1that is, they are made with tail or extension pieces, and these pieces act as the fish-plates. Both these latter plates hold the lead-rails in positionthat is, the fish-plates formed by the tail or extension pieces of the heel-block and the inner clip-plate, respectively. A

The fish-plate portion is formed with the necessary enlargement at that part where the semicircular recess above referred to is located.

The inner and outer clip-plates and the heel-block and the stock-rail are made and arranged to suitably rest on a chair-plate and which latter plate is bolted to the sleeper by fang-bolts or otherwise, the stock-rail being secured to the chair-plate by the medium of a clip-plate andwhich latter is riveted to the chair-plate.

It will be seen that I obtain a true radial blade-joint which is rigidly held at its pivot and works free from all strain when in use and which joint is operated by the usual rods and levers.

In order that my invention may be further and clearly understood, I will explain same in conjunction with the attached drawings.

In such drawings, Figure l is a cross-sectional elevation on line 1 2 of Fig. 2. Fig. 2 is a plan view on line 3 40f Fig. 1, while Fig. 3 is an elevation showing the pivotal portion of the blade-joint and also the butt-end of the lead-rail.

In the figures, a represents what is termed the stock-rail, and 'b What is known as the lead-rail.

The blade-joint rail is denoted by the letter c,having formed thereon the rounded projection cl, which acts as the trunnion or pivot for same. This pivot works in corresponding semicircular recesses, as e and f, formed companionwise in the distance or heel block 9 and plateh, as shown. The lead-rail at its butt-end is held in position by the fish-plate extensions j and is, formed on the heel-block g and plate h, respectively, while by the through-bolts Z the three parts are secured to each otherin a rigid manner. The heel-block g is further held atits head between the pivot d and the stock-rail a, as is clearly shown in Figs. 1 and 2. The plate It is bolted at in to the chair-plate n and which latter plate is secured to the sleeper by the fang-bolts p or in other approved manner, the stock-rail being also secured by the clip-plate q.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a railway blade-joint a heel-block having formed in its inner face a semicircular recess comprising one side of a bearing adapted to receive the trunnion of the bladejoint and a rearward extension on said heelblock for securing the same to the rail, substantially as described. Y

2. In a railway blade-joint a rail-plate having formed in its inner edge a semicircular recess comprising one side of a bearing adapted to receive the trunnion of the blade-joint and a rearward extension on said rail-plate for securing the same to the rail, substantially as described.

3. A railway blade-joint as 0 having at its butt-end a trunnion formation as d and workrails aand b respectively, substantially as and ing radially in companion recesses or bearfor the purposes herein set forth and as illusings as e and f formed respectively in the trated in the attached drawings.

heel-block g and rail-plate h substantially as In Witness whereof I have hereunto set my 5 and for the purposes herein set forth and as hand in presence of two witnesses.

illustrated in the attached di'awin s.

4. A railway blade-joint as c in operative NVALTER WATTS combination with a heel-block as g and a rail- Witnesses: plate as h and secured to a chair or founda- RICHARD SPARROW,

:0 tion plate as n and in conjunction with the FRED \VALTHAM.

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