US873761A - Railway-switch structure. - Google Patents

Description

No. 873,761. PATENTED DEG.17, 1907. H. R. LUTHER & F. F. STOOKWELL, J3.

RAILWAY SWITCH STRUCTURE.

APPLICATION FILED APR. 20. 1906.

2 SHEETS-SHEET 1.

v NoL 873,761. PATENTED DEC. 17, 1907.

H. R. LUTHER & F. P. STOOKWELL, JR.

RAILWAY SWITOH STRUCTURE.

APPLICATION FILED APR 20 1906.

2 SHEETS-SEEBT 2.

VWT/VESSES s'rars PATENT rune HENRY R. LUTHER, OF'NEWTON, AND FREDERIO F. STOOKWELL, J 1%., OF SOMERVILLE, MASSACHUSETTS.

RAILWAY-SWITCH STRUCTURE.

Specification of Letters Patent.

Patented Dec. 17, 1907.

Application filed April 20- 1906. Serial No. 312.900.

T 0 all whom it may concern:

Be it known that we, HENRY R. LUTHER, of Newton, county of Middlesex, and State of Massachusetts, and FREDERIO F. ST00K- WELL, Jr., of Somerville, county of Middlesex, and State of Massachusetts, have in vented certain new and useful Improvements in Railway-Switch Structures, of which the following is a specification, reference being had to the drawings which accompany the same.

Our invention relates to railway switch structures in which a portion of the track surfaces are secured in a body part of cast material in such manner as to be removable, if desired.

The object of our invention is to so form and arrange the various parts of a railway switch structure that they may be assembled with little or no machining, and to secure the parts to each other in such manner that they will not become loosened by the shocks and thrusts incident to use.

In the drawings accompanying this specification, and forming a part hereof. Figure 1 represents a plan of our improved switch structure with the various parts assembled in their operative positions. Fig. 2 is a side elevation of the assembled structure shown in Fig. 1. Fig. 3 is a plan view of the movable tongue forming a part of our railway switch structure. Fig. 4 is a side elevation of the same. Fig. 5 represents a cross section through line 55, Fig. 1. Fig. 6 is a cross section through line 66 Fig. 1. Fig. 7 represents a plan of the cast body part of our railway switch structure with the rail extensions and track surfaces removed. Fig. 8 is a side elevation of same. Fig. 9 is sec tional elevation of the cast body part of our railway switch structure on line 99 Fig. 7. Fig. 10 is a sectional elevation of the cast body part of our switch structure on line 10-10 Fig. 7. Fig. 11 represents a plan view of one of the hard wear resisting track surfaces of our railway switch structure. Fig. 12 is a sectional elevation of same through line 1212 Fig. 11. Fig. 13 is a sectional elevation of same through line 1313 Fig. 11. Fig. 14 is a sectional elevation of same through line 1414 Fig. 11. Fig. 15 is a sectional elevation of same through line 1515 Fig. 11; and Fig. 16 is a sectional elevation of same through line 16-16 Fig. 11.

The body part 1 of our railway switch structure is preferably made of cast material, and the rail sections 2, 2, 2, are preferably secured in the body part 1 by being placed in the mold and the cast metal flowed around them.

3 is a guard rail which is secured to the body part 1 by being placed in the mold and the metal flowed around it. The portions 4, 4, 4, form extensions of the cast body part which flow through openings made in the web and form a support outside of the guardrail 3, so as to more securely bind said guard-rail 3 to the body part 1.

5 is a hard wear resisting material, such as tool steel or manganese steel, either forged or cast in the form shown, so that it may be secured to the body part 1 by means of the angular web 6 formed upon its bottom part and which extends throughout its length. The angular web 6 is provided with grinding spots 7 so that they may be ground to fit the Wall 8 of the recess 9 cast in the body part 1. The track surface 5 is held in place by means of the bolts 10, 10, etc., which pass through holes in ears 11, 11, etc., formed upon the side of the track surfaces 5. Said bolts 10, 10, etc., extend through holes 12, 12, etc., in the body part 1, and have on'their lower ends the nuts 13, 13, etc. Said track surface 5 has a small bearing strip 14 extending throughout its length which bears upon the bearing strip 15 formed throughout the length of the cast body part. When the track surface 5 has been fitted and alined in the angular groove 9, it is further secured in place by a hard spelter which is flown into the recesses in the angular slot 9, and around the heads of the bolts 10 and the cars 11 of the track surfaces, thus securely binding the track surface 5 and the bolts 10 against displacement or loosening from the shock and wear incident to the use of the structure. The movable tongue-member 16 of the railway switch structure is pivoted to the body part 1 at its heel portion 17 by means of the rounded beveled portion 18 of the heel and a bolt 19 which passes down through the hole 20 in the heel of the switch tongue and into said body part 1.

It will be noted that the inner ends of the extension rails 2, 2, 2, are formed beveling to fit the bevel of the ends of the track surface 5. The purpose of this is to prevent Wear of the meeting ends of the rails and track surfaces by the tread of wheels passing over them.

The beveled heel portion 18 is surrounded with the hard spelter 21, 21, which bridges the gap between the circular portion 18 of said heel portion and the inner ends of the extension rails 2, 2.

It will be noted that the spring of the track surface 5 is made curving, and the angular web 6 is straight throughout its length. This is shown more clearly in the dotted lines Fig. 11, as well as in the sectional views of the track surface 5 shown in Figs. 12 to 16.

We do not wish to limit ourselves to the exact form of the cast body part 1, or the exact form of the track surface 5 as shown in Fig. 11, as the angle and location of the angular rib 6 may be changed, and the curvature of the track surface and the location of the lips 11, 11, as well as their number, may be changed without departing from the spirit of our invention.

What we claim is 1. In a railway switch structure, a cast body part; rail extensions integrally secured in said cast body part; a plate provided with track surfaces formed to bridge the space between the inner ends of the extension rails; an inclined web formed on the bottom of said plate; ears formed on said plate; and means for attaching the plate to the body part by means of said web and said ears.

2. In a railway switch structure, a cast body part; rail extensions secured in said cast body part; a plate with track surfaces formed thereon arranged to bridge the space between the inner ends of the extension rails; an inclined webformed on the bottom of said plate; ears formed on the side of said plate; and means for removably attaching said plate to the cast body part.

3. A railway switch structure, comprising a body part; rail extensions integrally se cured to said body part; a guard-rail integrally secured to said body part; a groove formed in the top of said body part and inclined at an angle with its top surface; a plate having track surfaces on its top and arranged to bridge the space between the inner ends of the rail extensions; a Web on the bottom of said plate formed at an incline to its top surface; and means for securing the web of the plate in the groove, consisting of bolts and hard spelter.

4. A railway switch structure, comprising a body part having rail extensions and a guard-rail integrally secured thereto; an angular groove in the top of said body part; a plate provided with an angular web adapted to fit into said angular groove; and means consisting of bolts and hard spelter for secur ing the plate to the body part, as described.

5. A railway switch structure, comprising a cast body part, extension rails and a guardrail integrally secured thereto; a groove in the top of said body part formed at an angle with its top surface; a plate having track surfaces thereon, and a web formed upon its bottom at an angle with the top surface of said plate; means for securing said plate in said body part comprising bolts and hard spelter; a tongue secured in said switch structure, its heel seated. in said hard spelter; and a pivot bolt for securing said tongue in its seat.

In witness whereof, We have hereunto set our hands, in the presence of two subscribing witnesses, this the 18th day of April, A. D. 1906.

HENRY R. LUTHER.

FREDERIC F. STOCKWELL, JR. Witnesses:

RICHARD P. ELLIOTT,

H. M. KELSO.

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