US1760465A

US1760465A - Frog point

Info

Publication number: US1760465A
Application number: US303419A
Authority: US
Inventors: David E Anderson
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-09-01
Filing date: 1928-09-01
Publication date: 1930-05-27
Anticipated expiration: 1947-05-27

Description

May 27, 1930. D. E. ANDERSON 1,760,465

FROQ POINT Filed Sept. 1, 1928 Patented May 27, 1930 PATENT OFFICE DAVID E. ANDERSON, OF ST. PAUL, MINNESOTA race romr' Application filed September 1, 1928. Serial No. 303,419.

My invention relates to rail frogs for frog points used on the'rails of railroads and particularly adapted to the frog points.

A feature of the invention includes the beveling of the ordinary rail to a thinness of the web of the rail at the point of the frog rail, and then rounding or arcuating the end of the point in a manner so as to overcome he breaking away of the point and also doing away with the sharp corner at the point which heretofore has been detrimental in the operation of the wheels of cars and trains passing over the same.

My rail frog point is particularly adapted to the construction ofmy frog illustrated in my Patent No. 1,580,108, and this improved feature of my frog point provides an arcuated end at the extreme point of the frog which protects the same from breaking away or crac ing and also does away with the sharp square corner at the extreme apex of the point on the ball of the rail.

These features, together with other details and objec s will be more clearly defined and set forth hereinafter in the specification and claims.

In the drawings: a v

Figure 1 isa perspective view of my frog point;

Figure 2 is an end view of the same.

Figure 3 is a side view of the same.

In the drawings my frog point A is formed I from the ordinary rail having a rail top or ball portion 10 which is held by the web 11 to the base flanges 12.

Informing my rail frog point A, the sides of the rail are beveled away in a manner to provide the inclined sides 14 and a pronounced shoulder 15 extending from the large part of the rail and clearup to the very extreme end or point of the same, so that pronounced shoulders 15 are provided at' the extreme pointed end 16 of t e rail frog.

The primary object of the invention is to arcuate the frog point 16 at 18 so as to cut away the portion 19 illustrated in dotted outline which heretofore has formed the sharp shoulder end at the point of the frog and which is detrimental to the wheels of railroad I trucks passingover the same. 1

It is important to form the frog point A withwthe arcuated end 18 by removing the portion 19 at the very point thereof for the reason that it prevents the cracking away or splitting of the frog point 16. I have found that this improved feature of my frog point eliminates cracking, splitting or breaking away of the apex and extreme outer end 16 of the frog point when made as set forth in my frog point A as herein described. This is a simple, yet very effective and important feature and accomplishes a result highly desirable and absolutely necessary in the successful operation of my frog point A.

In accordance with the patent statutes I have described the principles of the construction of my fro point and I have endeavored to illustrate t e best embodiment thereof; however, obvious changes and adaptations of the same may be accomplished within the scope of the followin claims without departing from the spirit 0 the invention.

1 claim:

1. A frog point made from a rail section having a beveled pointed end with a ball point of virtually the width of the web of the rail, shoulders formed on either side of the lower portion of the pointed end of the ball of the rail, and an arcuated tip end at the apex formed into the ball ofthe frog point.

2. A fro point including, an arcuated tip end forme in the ball of the point and having pronounced shoulders beneath the tip end for su porting the frog point at the apex theme and relieving the tip end by the arcuated portion at the ball.

3. A frog point including, a rail frog formed from an ordinary rail by beveling the sides of the ball of the rail away toward the center thereof to form an extremely narrow frog point end, and an arcuated ball tip formed at the end of said rail. v

4. A frog point including, a rail frog r formed from an ordinary rail section, a grad.- ually tapering frog point, and an arcuated ball tip formed on said frog oint.

DAVID E. A ERSON.