US1684619A - Rail-joint spring - Google Patents
Rail-joint spring Download PDFInfo
- Publication number
- US1684619A US1684619A US219272A US21927227A US1684619A US 1684619 A US1684619 A US 1684619A US 219272 A US219272 A US 219272A US 21927227 A US21927227 A US 21927227A US 1684619 A US1684619 A US 1684619A
- Authority
- US
- United States
- Prior art keywords
- rail
- spring
- bar
- joint spring
- curved
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B11/00—Rail joints
- E01B11/02—Dismountable rail joints
- E01B11/36—Fastening means for fishplates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/955—Locked bolthead or nut
- Y10S411/956—Automatic base clutch
- Y10S411/96—Friction
Definitions
- This invention relates to rail joint springs and is designed to provide .an improved spring which bridges at least two bolts in the splice bar, and holds the splice bar with a yielding pressureso as to take up wear and reduce the battering of the rail ends.
- I preferably make the spring of varying thickness across its width.
- a desirable rail spring has been madechannel-like in cross section with the thickened edges extending toward the splice bar. The, bolt receiving holes are formed in the web portion of the channel. This cross section gives a greater section modulus than is secured in a rail spring of uniform thickness. It is found in practice that my improved spring can be compressed to a desired load with far lesswork than a spring of the lVoodings type,
- the rail spring is made of a metal bar whose cross sectional shape is shown in Figure 4.
- Thebar has a flat central portion 6 adaptedto initially lie alongside the splice plate 3'.
- Ateach end the spring is provided with a port1on7 so curved that it lies initially out of engagement with the splice bar 8, but 7 has its corners 8 directed toward the splice bar 3.
- Bolt holes 9 are provided in the curved portions 7. When the bolts 4 are drawn iip, the corners 8 are pulled against the splice bar 3 and the central portion '6 is bowed slightly. This bowing is exaggerated 1n F1g. 1 for purpose of 1llnstration. It is found n practice that no permanent deformation of the metal is effected and that a defiinvention may be otherwiseembodied within the scope of the following claims.
- a rail oint spring comprising, a longitndinally curved bar, the bar mate 'ial being of varying.thickness across its width.
- a rail joint spring comprising a longitudinally curved bar, the bar having a. recess forn'ied in a face thereof so as to provide'a spring of varying thickness across itswidth, the recess lying on the side of the rail spring '5.
- a rail joint spring comprisingxa bar having acentral portion-adapted to initially.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
Description
Sept. 18, 1928.
- L. s. ENDSLEY RKIL JOINT sigma Filed Sept. 13, 1927 -unl-m INVgNTOR \Q? E, Evwb I gy 5mm... WM
Patented Sept. 18, 1928.
UNITED STATES PATENT- OFFICE.
LOUIS E, .ENDSLEY, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO VERONA TOOL WORKS, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.
BAIL-JOINT SPRING.
Application filed september 13, 1927. Serial No. 219,272.
This invention relates to rail joint springs and is designed to provide .an improved spring which bridges at least two bolts in the splice bar, and holds the splice bar with a yielding pressureso as to take up wear and reduce the battering of the rail ends.
In the WVoodings Patent 1,416,152, dated May 16th, 1922, there is described and claimed a rail spring of the leaf type com prising acentral portion having a curvature such that some degree of permanent set isobtained when the bolts are tightened.
While a rail spring of the lVoodings type has been found generally satisfactory in operation, I have found that the exact degree of pressure which may be obtained from its use is somewhat uncertain, due to the permanent set which is effected when the rail spring is put in place. The Woodings rail spring initially engages the splice bar at a point substantially intermediate the bolts which engage it. I provide a rail joint spring whose central portion is adapted to'initi ally engage the splice bar at spaced apartpoints. This central portion is preferably flat and the end portions are curved so as to lie away from' the splice bar.
I preferably make the spring of varying thickness across its width. A desirable rail spring has been madechannel-like in cross section with the thickened edges extending toward the splice bar. The, bolt receiving holes are formed in the web portion of the channel. This cross section gives a greater section modulus than is secured in a rail spring of uniform thickness. It is found in practice that my improved spring can be compressed to a desired load with far lesswork than a spring of the lVoodings type,
and further, that a definite spring load can which is adjacent the rail in use.
erally by the reference character 5, and is shown as engaging pairs of bolts 4.
The rail spring is made of a metal bar whose cross sectional shape is shown in Figure 4. Thebar has a flat central portion 6 adaptedto initially lie alongside the splice plate 3'. Ateach end the spring is provided with a port1on7 so curved that it lies initially out of engagement with the splice bar 8, but 7 has its corners 8 directed toward the splice bar 3. Bolt holes 9 are provided in the curved portions 7. When the bolts 4 are drawn iip, the corners 8 are pulled against the splice bar 3 and the central portion '6 is bowed slightly. This bowing is exaggerated 1n F1g. 1 for purpose of 1llnstration. It is found n practice that no permanent deformation of the metal is effected and that a defiinvention may be otherwiseembodied within the scope of the following claims.
I clalm 1. A rail oint spring comprising, a longitndinally curved bar, the bar mate 'ial being of varying.thickness across its width.
2. A rail joint spring comprising a longitudinally curved bar, the bar being channellike in cross section.
4:. A rail joint spring comprising a longitudinally curved bar, the bar having a. recess forn'ied in a face thereof so as to provide'a spring of varying thickness across itswidth, the recess lying on the side of the rail spring '5. A rail joint spring comprisingxa bar having acentral portion-adapted to initially.
engage'a splice bar-at longitudinally spaced points, and curved portions lying at either endof the space defined by such points, the curved portions having openings therethrough to receive bolts.
6. A rail joint spring comprising a bar I having a eentral portion adapted to initially
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US219272A US1684619A (en) | 1927-09-13 | 1927-09-13 | Rail-joint spring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US219272A US1684619A (en) | 1927-09-13 | 1927-09-13 | Rail-joint spring |
Publications (1)
Publication Number | Publication Date |
---|---|
US1684619A true US1684619A (en) | 1928-09-18 |
Family
ID=22818598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US219272A Expired - Lifetime US1684619A (en) | 1927-09-13 | 1927-09-13 | Rail-joint spring |
Country Status (1)
Country | Link |
---|---|
US (1) | US1684619A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2443505A (en) * | 1945-06-11 | 1948-06-15 | Ira Saks | Locking plate for clutch levers and the like |
US3179449A (en) * | 1960-11-21 | 1965-04-20 | Walker Mfg Co | Pipe joint having internally stressed flange providing continuing axial bias |
-
1927
- 1927-09-13 US US219272A patent/US1684619A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2443505A (en) * | 1945-06-11 | 1948-06-15 | Ira Saks | Locking plate for clutch levers and the like |
US3179449A (en) * | 1960-11-21 | 1965-04-20 | Walker Mfg Co | Pipe joint having internally stressed flange providing continuing axial bias |
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