US1370792A

US1370792A - Switch-point filler-block

Info

Publication number: US1370792A
Application number: US433109A
Authority: US
Inventors: Frank H Dorsey
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-12-27
Filing date: 1920-12-27
Publication date: 1921-03-08
Anticipated expiration: 1938-03-08

Description

F. H. DORSEY. SWITCH POINT FILLER BLOCK. APPLICATION FILED DEC.2ZI 1920.

Patented Mar. 8, 19,21.

UNITED STATES PATENT OFFICE.

SWITCH-POINT FILLER-BLOCK.

Specification of Letters Patent.

Patented Mar. 8, 1921.

Application filed December 27, 1920. Serial No. 433,109.

T 0 all whom it may concern Be it known that I, FRANK H. DoRsEY, citizen of the United States, and resident of Kansas City, county of Jackson, State of Missouri, have invented a certain new and useful Improvement in Switch-Point Filler- Blocks, of which the following is a complete specification.

This invention relates to filler blocks for switch points, and has for its object to produce a support for the heel of a switch .point adapted to serve as a permanent blocking therefor, and also dispensing with the one of the angle splices commonly used at this point.

Heretofore devices of this character have been objectionable as holes had to be bored through the main line rail, thus weakening the same. A. still further objection was the fact that when the bolts were passed through the main line rail and also extended through a fillerblock, the running or creeping of the rail was liable to shear the bolts and cause the. formation of a lip between the switch point and the rail. In case the bolts were not sheared by the creeping of the rail, such creeping will pull or push the frog out of position, creating a very dangerous condition.

\Vith the device of the invention these objections are not found, as it is not necessary to bore holes in the main rail and the latter is therefore free to run or creep, which is especially true with rails forming the main line of a double track system, or with rails located on a grade. It has also been found that with this device the throwing of a switch is more easily effected than with the ordinary construction.

With these objects in view the invention consists in certain novel and peculiar features of construction and organization of parts as hereinafter described and claimed; and in order that it may be' fully understood, reference is tobe had to the accompanying drawing, in -which:

Figure 1 is a perspective View of the filler block;

Fig. 2 is a plan view of a main line rail and switch point, illustrating the filler block in operative position;

Fig. 3 is an enlarged plan view of the heel portion of the switch; and

Fig. 4; is a cross section on the line IV IV of Fig. 3.

In the said drawing, where like reference characters identify corresponding parts in all of the views, 1 is a main line rail, adapted to rest on and be spiked to the ties 2, as customary, and 3 is a switch point adapted for operation through the connection. At the heel of the switch point 3 where it is secured to a branch line rail 5, a filler block 6, perforated as at 7 in line with the perforations in the ends of the branch line rail and the switch point, is inserted between said parts and the main line rail, as illustrated in Fig. 2. It will be noted that the filler block is so formed that it shall rest on the base flanges of the rails, and that its sides shall abut the web portions thereof. A groove 8 is formed in its upper side for clearing the flanges of the wheels passing over the block, the groove forming ears 9 which abut the under sides of the tread portions of the rails, as illustrated in Fig. 4.

It will be noted that the ends of the perforations in the filler block are provided with countersunk portions 10 of suflicient size to receive certain bolt heads, as hereinafter described, both ends of the openings 7 being countersunk in order that the filler block may be used with either the right or left hand rail, that is, at either side of the switch.

Against the opposite side of the branch line rail 5 is an angle splice or clamping plate 11 with perforations alined with those of the switch point and branch rail 5, the

upper side of said plate abutting the underside of the tread portion of the rail and the lower side resting on the base of the rail and overlapping the edge of the same and engaged by rail spikes as illustrated. The four parts branch line rail, switch point, filler block and clamping plate are held in position by means of bolts 12 fitting therethrough, it being noted that the heads 13 of the bolts fit in countersunk portions 10 of the filler block, and are held therein against turning movement. No angle splice is required at the outer side of the heel of the switch, the block 6 fulfilling all the requirements of such a splice.

It will be noted that with the invention employed as described, the main line rail will act as an abutment for the filler block and therefore for the heel of the switch point, although the said rail is not fastened to the block, and is free for running or creeping in either direction, without being accompanied by the shearing off of bolt heads. At

,erly falling within the same time the main line rail is not weakened in any way by the drilling of bolt holes therethrough, and the labor incident to such drilling operation is eliminated. The contour and arrangement of the filler block is such as to provide an efficient bracing and supporting structure for the switch point, serving to holdthe same in place and preventing any lateral rocking or giving of the ball or tread portion of the switch point. In addition to these advantages, as already indioated, the operation of the switch point is materially facilitated on account of the fact that the invention employs no bolts or other connections between the switch point and the outside of main rail, from which it is also apparent that the strain on the parts incident to the operation of the switch is materially reduced.

From the above description, it will be ap parent that I have produced a device of the character described, which possesses all of the features of advantage set forth as desirable in the statement of the objects of the invention, and while I have described and illustrated the preferred embodiment of the same, I reserve the right to all changes propthe spirit and scope of the appended claims.

I claim:

1. In a device of the character described, the combination of a pair of rails and a switch point, and a filler block abutting the side of one of said rails and secured only to the other rail and said switch point.

2. In a device of the character described, the combination of a main line rail, a branch line rail and a switch point and a filler block separating said main rail from said branch rail and switch point and secured at its opposite ends to the heel of the switch point and to said branch rail respectively, said block being unsecured to said main rail.

3. In a device of the'character described, a main line rail, a branch line rail and a switch point separating said main rail from said branch rail and switch point and a filler block provided with bolt openings countersunk on the face thereof abuttingsaid main rail, said block being secured to the branch rail and switch pointby means of bolts hav ing their heads embedded in the countersunk portions of said openings.

4. In a device of the characterdescribed, a main line rail, a branch line rail and a switch point a filler block separating said main rail from said branch rail and switch point and provided with bolt'openings having countersunk portions on the face thereof abutting saidmain rail, a perforated clamping plate cooperating with said block to connect said branch rail and switch point, and bolts having their heads rigidly held in the countersunk portions of said openings FRANK H. DORSEY.

the upper face of said a