US1795110A - Multipart articulated reenforced-concrete sleeper - Google Patents
Multipart articulated reenforced-concrete sleeper Download PDFInfo
- Publication number
- US1795110A US1795110A US396714A US39671429A US1795110A US 1795110 A US1795110 A US 1795110A US 396714 A US396714 A US 396714A US 39671429 A US39671429 A US 39671429A US 1795110 A US1795110 A US 1795110A
- Authority
- US
- United States
- Prior art keywords
- reenforced
- concrete sleeper
- multipart
- articulated
- sleeper
- 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
- 241001669679 Eleotris Species 0.000 title description 10
- 238000005452 bending Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
- E01B3/36—Composite sleepers
Definitions
- the improved reenforced concrete sleeper forming the subject-matter of this invention is also twopart and the bolt Or pivot connecting theseparts with one another is arranged vertically in a socket in which it has some play.
- Figure 3 a. vertical section through the connecting bolt or pivot and the cooperating socket, this figure being drawn to an enlarged I 0 and d areshown in Figs. 1 and 2 only in dotted lines, but are shown separately in full 'lines and on a larger scalein Fig. 3.
- a multipart articulated reenforced concrete sleeper comprising two sleeper halves one another; a vertical socket in one of said projections, and a bolt in the other projection, this bolt extending into said socket and having some play therein.
- a multipart articulated reenforced concrete sleeper comprising two sleeper halves having each a projection directed towards the other half, the two projections overlapping one another; a vertical socket in one of said projections, and a bolt in the other projection,
- this bolt extending into said socket and tapering at its free end, substantially as set forth.
- I afiix my signature.
Description
March 3, 1931. c. DOERR 1,795,110
MULTIPART ARTICULATED REENFORCED CONCRETE SLEEPER Filed Oct. 2. 192s:
l w I n at overlapping one another at their adjacent V Patented Mar. 3, 1931 1 UNITED STATES CARL DOERR, 0F NAUMBURG-ON-THE-SAALE, GERMANY portion after a short time.
PATENT; OFFICE MULTIPQET ARTICULATED REENFORCED-CONCRETE SLEEPER Applicationfiled October 2, 1929, Serial No. 396,714, and in Germany May 30, 1927.
By the wheel loads acting simultaneous upon both ends of the reenforced concrete sleepers these latter are subjected to bending stresses in their middle portion in so infavorable a manner that they break at this In order to overcome this drawback the reenforced concrete sleepers have already been divided into two equal parts and these latter have been yieldingly jointed to one another in the middle portion of the sleeper by means of bolts.
The improved reenforced concrete sleeper forming the subject-matter of this invention is also twopart and the bolt Or pivot connecting theseparts with one another is arranged vertically in a socket in which it has some play.
The invention is illustrated diagrammatically and by way of example on the accom J panylng drawing on which Figure 1 is a sidev1ew of a multipart or twopart reenforced concrete sleeper designed according to this lnvention; Figure 2 1s a plan thereof, and
Figure 3 a. vertical section through the connecting bolt or pivot and the cooperating socket, this figure being drawn to an enlarged I 0 and d areshown in Figs. 1 and 2 only in dotted lines, but are shown separately in full 'lines and on a larger scalein Fig. 3. The
frontal faces at the ends of the projections a and b are not actually vertical, but are a little inclined, and the adjoining horizontal V faces are a little convex, asshown in F igsl 1 and 2. Owing to this configuration of the projections and to the plays between the mem- 1. A multipart articulated reenforced concrete sleeper, comprising two sleeper halves one another; a vertical socket in one of said projections, and a bolt in the other projection, this bolt extending into said socket and having some play therein.
3. A multipart articulated reenforced concrete sleeper, comprising two sleeper halves having each a projection directed towards the other half, the two projections overlapping one another; a vertical socket in one of said projections, and a bolt in the other projection,
this bolt extending into said socket and tapering at its free end, substantially as set forth. In testlmony whereof I afiix my signature.
CARL DOERR.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1795110X | 1927-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1795110A true US1795110A (en) | 1931-03-03 |
Family
ID=7743612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US396714A Expired - Lifetime US1795110A (en) | 1927-05-30 | 1929-10-02 | Multipart articulated reenforced-concrete sleeper |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1795110A (en) |
-
1929
- 1929-10-02 US US396714A patent/US1795110A/en not_active Expired - Lifetime
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