US627816A - Tie-plate. - Google Patents

Description

No. 627,8l6. Patented lune 27, I899.

W. BAGNALL.

\ TIE PLATE.

(Application filed Oct. 18. 1898.]

(No Model.)

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UNITE STATES PATENT- OFFICE.

. -WILLIAM BAGNALL, on PIT sBURG, PENNSYLVANIA, ASSIGNOR TO THE OLIVER IRON AND STEEL COMPANY, OF SAME PLACE.

TIE-PLATE.

SPECIFICATION forming part vof Letters Patent NO. 627,816, dated. June 27, 1899; Application filed October 18,1898. Serial Nor 693,861. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM BAGNALL, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Tie-Plates, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification; in which Figures 1 and 2 are perspective views looking at the top and bottom, respectively, of my improved tie-plate; and Fig. 3 is a cross-section on the line III III of Fig. 1.

My invention relates to that class of tieplates which are provided with projecting longitudinal flanges upon their bottom, which flanges are arranged to enter the tie lengthwise of the grain, and it is designed to provide an improved tie-plate of this character which shall be provided at one end with a trans: verse rolled ledge or abutment, against which the rail-base will rest, this abutment preferably having raised ribs at intervals, which will prevent the rail from rising upon and over the shoulder,

In thedrawings, 2 represents the body of the plate, having on its lower face downwardly-projecting tapered flanges 3, the outer flanges being set in from-the side edges of the plate a short distance and these flanges be ing preferably continuous throughout the length of the plate except at one end, where the metal of the flanges is forced upwardly in the rolling operation, so as to form short longitudinal ribs 4, the inner ends of which are flush with the inner face of a transverse shoulder or abutment 5, which is preferably formed in the last pass of the rolls. The ribs project above the upper face of the transverse shoulder or abutment and prevent the rail from rising thereon, while the abutment with these ribs gives a ledge upon one side of the railbase which relieves the spikes from strainv and prevents the rail from moving along the face of the plate.

The indenting of the end portions of the K lower flanges is mainly for the purpose of 0btaining the necessary metal for the ribs 4,

though this formation of the end portion. of

the flanges serves to aid in preventing longi- 5o tudinal sliding of the plate. The advantages of my invention will be apparent to those skilled in the art. The plates may be rolled in a continuous length, the

transverse abutment being formed during the rolling operation, and the plates then cut apart and punched to form the necessary spike-holes. The transverse integral abutment, with its integral ribs, gives a firm bearing for the edge of the rail-base, and a simple and cheap construction is afforded.

Many variations in the shape of the depending flanges, as well as in the form of the abut-' ment and the ribs, may be made without departing from my invention, since I claim- 1. A rolled tie-plate having an upper transverse abutment with separated raised ribs thereon; substantially as described.

2. A rolled tie-plate, having lower longitunal truss-ribs, and an upper transverse integral abutment having separated raised rib portions; substantially as described.

3. A rolled tie-plate, having lower longitu dinaltruss-ribs, indented or recessed at one end, and provided with an upper transverse abutment having raised ribs in registry with the indentations of the lower truss-ribs; substantially as described.

4. A rolled tie-plate having lower longitudinal'truss-ribs, said ribs being indented or recessed near one end, this portion of the metal of the ribs being forced up from the lower ribsto form shortupper longitudinal ribs on the top of the plate, said upper ribs being in registry with the indented or recessed portions of the lower ribs; substantially as' H. M. OORWIN, G. B. BLEMMING.

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