US1845990A

US1845990A - Universal anchor plate

Info

Publication number: US1845990A
Application number: US531480A
Authority: US
Inventors: Frederick S Schwinn
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-04-20
Filing date: 1931-04-20
Publication date: 1932-02-16
Anticipated expiration: 1949-02-16

Description

Feb. 16, 1932.

F. S. SCHWINN UNIVERSAL ANCHOR PLATE Filed April 20, 1931 F 51 X1 Nl f 8 FrederigK S.S=,hwmn INVENTOR.

A' TTORNEYS.

Patented Feb. 16, 1932 UNITED STATES PATENT OFFICE raanmcx 8. scnwnm, 01! HOUSTON, TEXAS UNIVERSAL ANCHOR PLATE Application fled April 20, 1881. Serial No. 581,480.,

My invention relates to anchor plates for.

provide means in connection with the anchor plate which is easily adjustable to eng a c with any of the ordinary sizes of ra1l s wit out difiiculty and which when fixed 1n pos1- tion will firmly anchor the rail to the cross. 15 ties.

I desire to provide an anchor plate which may be used with cross ties of all ordinary constructions and which will protect the tie from rail wear.

The invention also includes the provision of cam plates which are readily ad ustable and which are provided with clamping rims thereon which engage the base of the ra11 so as to obtain a com aratively large frictional contact with the rail when said plates are anchored in position.

In the drawings herewith Fig. 1 is a transverse section throu h a rail showing the same supported and anc ored in position with my im roved anchor plate.

ig, 2 is a top plan view of the anchor plate with a section of rail supported thereon. fIt is to be understood that-my base plate 1 is adapted to be supported upon any type of cross tie. The plate is shown as rectangular in shape having adjacent its ends a plurality of openings therein to receive spikes 2. Said ikes may be of proper construction to fix t e plate'to the particular cross tie which is employed. They may be steel cut track spikes, or, as is shown iii the drawings, they may be screw spikes or bolts adapted to be screwed through the openings in the plate into the cross tie and anchor the plate firmly in position. Washers 3 below the heads of the spikes arepreferably employed.

The plate 1 is preferably provided with a pair of upwardly extending bosses 4 spaced to apart a sufiicient distance to include between them the base 5 of any size of rail 6 and to allow the mounting) on said bosses of clam ing plates 7 Said osses are tapered slight y toward the upper face thereof and are formed with axial openings'B therethrough to receive bolts 9 adapted to anchor the plates in position.

The cam plates 7 are formed with recesses 10'on the lower side thereof to fit upon the bosses 4 and to be rotatable thereon. The central portion of the cam plate is formed with an upwardly extending hub 11 thereon to engage about the anchor bolts 9. The openings 12 through said plates are arranged eccentrically relative to the plates so that when the said plates are rotated about the bosses 4 the outer peripheries 13 thereof may be adjusted to engage against the adjacent edges of the rail base 5. The said plates are formed with radiall extending rims 14, which are beveled slig tly on the lower side, as shown at 15, to engagewith the upper surface of the rail base. It will thus be seen that when the cam plates 7 are mounted upon the bosses with the bolts 9 extending u wardly therethrough they maybe rotated to bring the outer periphery thereof in clamping engagement with the rail plate and that they can be readily adjusted for various widths of rail base. In the drawings the cam plates are shown. as engagin with the base'of the narrowest type of rai Wider'rail bases can be readily accommodated by a slight rotation of the cam plates upon the bolts 9 as an axis. The bolts 9rare fitted within the openings 8 in the base plate, said openin being countersunk at 16 to receive the hea s 17 of the bolts. The upper ends of the bolts are provided with nuts 18 and lock washers 19 thereon.- The operation of my device will be readily understood. The base plates. 1 may be anchored in position upon the cross ties with the bolts 9 extending upwardly through the openings 8 in the bosses 13. The rail may then be placed in position upon the base plate and the cam plates 7 placed in position and rotated until the outer periphery thereof engages firmly against the rall base. The nuts 18 w1th lock washers 19 thereon will then be employed to clamp the cam plates 17 rigidly in position, anchoring the rail firmly against movement.

It will be obvious that this anchoring device may be quickly adjustable so as to firmly 5 anchor the rail in position. It is also obv1- ous that with this type of rail anchoring device the gauge of the track may be changed slightly with very little adjustment of the anchoring device. Furthermore, it is possible to substitute one width of rail for another by a very slight adjustment of the cam plates as has been described. The particular anchor plate will be seen to have a wide engagement with the rail base which will tend to clamp the rail in position more effectively than with the usual spikes. This will tend to eliminate creeping of the rail relative to the plate and minlmizes mechanical wear between the plate and the rail. This type of anchor also overcomes the effect of rail expansion under heat as a factor in track construction. It has other advantages which will be obvious to those skilled in the art.

WhatI claim as new is: A combined tie plate and rail anchor including an oblong plate shaped to fit upon a cross tie, said plate being adapted to support a rail midway between its ends, bosses on said plate on opposite sides of said rail, cam shaped plates mounted rotatably on said "bosses, a rim on each of said cams and means to clamp said cam plates upon rails of various widths.

In testimony whereof I hereunto afiix my signature this 10th day of A ril A. D. 1931.

FREDERICK SCHWINN.