US221196A - Improvement in railroad-switches - Google Patents
Improvement in railroad-switches Download PDFInfo
- Publication number
- US221196A US221196A US221196DA US221196A US 221196 A US221196 A US 221196A US 221196D A US221196D A US 221196DA US 221196 A US221196 A US 221196A
- Authority
- US
- United States
- Prior art keywords
- rails
- switch
- rail
- railroad
- track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 description 4
- 241000220010 Rhode Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/02—Mechanical devices for operating points or scotch-blocks, e.g. local manual control
Definitions
- Fig. 2 is an underside view of the movable rails.
- the object of this invention is to furnish railroad-switches which shall be so constructed as to prevent trains from running off the track through a misplaced switch.
- the invention consists in an improved railroad-switch formed by the combination of the springs, the three pairs of switch-rails, the connecting-bars, and the switch-bar with each other and with the rails of the tracks, as hereinafter fully described.
- A represents the rails of the track, with which the rails B and O of the two tracks are to be connected by the switch.
- D E are two switch-rails, which are connected at one end and pivoted to the ends of the rails A by chairs M.
- the other ends of the rails D E are attached to the switch-bar G, by which they are moved in the usual Way.
- the rails D E are also connected by a bar, H.
- D E are the switch-rails, that form tracks in connection with the rails D E, respectively; and F F are two switch-rails, also forming a track.
- the rails F F are attached at one end to the switch-bar G, and their other ends are tapered to fit against the inner sides of the rails D E near their pivoted ends, and are held against the said rails D E by springs I, placed upon the outer sides of the rails D E, and having bolts J attached to them, which pass through holes in the rails D E, and are attaohed to the tapered ends of the rails F F.
- the rails D E are placed at the inner sides of the rails F F, and are attached at one end to the switch-bar G.
- the other ends of the rails D E are tapered upon their outer sides, and are placed'at such a distance from the said rails F F that the flanges of the carwheels may pass through readily.
- the rail D at a little distance from its tapered end, is connected with the rail F by a bar, K, and. the rail E is connected with the rail F by a bar, L.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Description
H. D. SPRAGUE. Railroad-Switch.
No. 221,196. I Paten1ed-Nov.4,1879.
' WITNESSES: I INVBNTOR:
we TTORNEYS.
N.PE\'ERS. FHOTLLLITHDGRAPHER. WASHINGTON,- D C.
' NIED STATES PATENT OFFICE,
HENRY D. SPRAGUE, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO HIMSELF AND JAMES C. SHERIDAN, OF SAME PLACE.
IMPROVEMENT IN RAILROAD-SWITCH ES.
Specification forming part of Letters Patent No. 221,196. dated November 4, 1879; application filed March 5, 1879.
I To all whom it may concern:
switch. Fig. 2 is an underside view of the movable rails.
Similar letters of reference indicate corresponding parts.
The object of this invention is to furnish railroad-switches which shall be so constructed as to prevent trains from running off the track through a misplaced switch.
The invention consists in an improved railroad-switch formed by the combination of the springs, the three pairs of switch-rails, the connecting-bars, and the switch-bar with each other and with the rails of the tracks, as hereinafter fully described.
A represents the rails of the track, with which the rails B and O of the two tracks are to be connected by the switch.
D E are two switch-rails, which are connected at one end and pivoted to the ends of the rails A by chairs M. The other ends of the rails D E are attached to the switch-bar G, by which they are moved in the usual Way. The rails D E are also connected by a bar, H.
D E are the switch-rails, that form tracks in connection with the rails D E, respectively; and F F are two switch-rails, also forming a track.
The rails F F are attached at one end to the switch-bar G, and their other ends are tapered to fit against the inner sides of the rails D E near their pivoted ends, and are held against the said rails D E by springs I, placed upon the outer sides of the rails D E, and having bolts J attached to them, which pass through holes in the rails D E, and are attaohed to the tapered ends of the rails F F.
The rails D E are placed at the inner sides of the rails F F, and are attached at one end to the switch-bar G. The other ends of the rails D E are tapered upon their outer sides, and are placed'at such a distance from the said rails F F that the flanges of the carwheels may pass through readily.
. The rail D, at a little distance from its tapered end, is connected with the rail F by a bar, K, and. the rail E is connected with the rail F by a bar, L.
I With this construction, if a train upon the track B approaches-the switch, the Wheels pass along the rails F F to the rails D, and thence to the rails A. 'If a train upon the track 0 approaches the switch, the wheels pass along the rails D D, and the flanges of the wheels upon the rail D press the tapered end of the rail F inward against the tension of the spring I, which moves the tapered end of the rail D outward against the rail F, so that thewheels may pass from the rail D to the rail F, thence to the rail E, and thence to the rail A. The other wheels pass directly from the rail D to the rail A.
In case the switch is shifted so as to bring the rails E E in connection with the rails B, and therails F F in connection with the rails O, a train from. either of the tracks B G will pass safely to the track A, the switch-rails bein g moved into the proper place by the flanges of the wheels, in the same manner as herein-' before described.
WVith this construction a train from the track A will pass along the switch-rails F l to the track B or 0, according as the switch may be adjusted, and cannot get off the track,
as the said switch-rails F F are always con- HENRY D. SPRAGUE.
Witnesses:
WILLIAM B. W. HALLETT, OHAs. D. WAITE.
Publications (1)
Publication Number | Publication Date |
---|---|
US221196A true US221196A (en) | 1879-11-04 |
Family
ID=2290593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US221196D Expired - Lifetime US221196A (en) | Improvement in railroad-switches |
Country Status (1)
Country | Link |
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US (1) | US221196A (en) |
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0
- US US221196D patent/US221196A/en not_active Expired - Lifetime
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