US91893A - whitman - Google Patents
whitman Download PDFInfo
- Publication number
- US91893A US91893A US91893DA US91893A US 91893 A US91893 A US 91893A US 91893D A US91893D A US 91893DA US 91893 A US91893 A US 91893A
- Authority
- US
- United States
- Prior art keywords
- sleeper
- wood
- whitman
- rest
- woodsum
- 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 description 20
- 239000002023 wood Substances 0.000 description 20
- 238000010276 construction Methods 0.000 description 4
- 239000011121 hardwood Substances 0.000 description 4
- 241000229754 Iva xanthiifolia Species 0.000 description 2
- 241000218657 Picea Species 0.000 description 2
- 230000003028 elevating Effects 0.000 description 2
- 229920000591 gum Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
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
- E01B3/46—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from different materials
Definitions
- Figure 2 a side view.
- the purpose of this invention is to make such a change in the construction of railroad-sleepers, as that their durability will be much increased, and also that lighter and softer material can be used for such sleepers, and still equal or greater durability be attained than when made in the ordinary method.
- the sleeper constructed of spruce or some. other like wood, issho'wn at A, and a. shows the section of solid hard wood inserted therein for the rail to rest upon.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Description
WOODSUNI & WHITMAN.
Railway Sleeper.
N0' 91,893 Patented Junezg, 1869.
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iiutml -tant anni (attire.
H. WOODSUM 'AND F. H. WHITMAN, OF HARRISON, MAINE; SAID WOODSUM ASSIGNS HIS RIGHT TO SAID WHITMAN.
Letters Patent No. 91,893, dated June 29, 1869.
IMPROVE!) RAILWAY-SLEEPVER The Schedule referred to in these Letters Patent and making part of the lame.
To all whom it may concern :l
Be it known that we, E. H. WOODSUM and F. H. \VH1TMAN,both of Harrison, in the county of Gum,- berland, and State of Maine, have invented a new and useful Improved Sleeper; and we hereby declare the following to be a full, clear, and exact description thereof, which will enable others to make and use our invention, reference being had to the accompanying drawings, forming part ot this specification, in which- Figure 1 shows a top plan.
Figure 2, a side view.
The purpose of this invention is to make such a change in the construction of railroad-sleepers, as that their durability will be much increased, and also that lighter and softer material can be used for such sleepers, and still equal or greater durability be attained than when made in the ordinary method.
Itis a familiar fact that wood, when shrinking by reason of becoming dry,vdoes not contract in the directions of its grains, but across the same. It is also Awell known, that with railroad-sleepers made of wood,
they soon become splintered, broken, and worn at the point where the rails ot the road cross and rest upon the same. The frequent jar and pressure wear them at these points before at any other.
Our invention seeks to remedy this, as follows:
We first cut a recess at or near each end of the sleeper, where the railwill rest upon the same, when laid on a road. Inito this recess, we tightly t pieces or sections of hard, fine-grained, or durable wood.
This will always `remain tightly fitted, because of the peculiarity before named, that the 'piece will not shrink in the direction of its length or grain, and we propose to have the grains of the piece thus inserted to run in the direction of the length of the sleeper.
Then the wear of the rail and the jar of passing trains has less eiiect upon the sleeper, by reason of the hardness of -theb wood where the lrails rest upon the said sleeper, and consequently much cheaper and less durable wood 4or lumber can be used for the sleeper itself, without detriment to its Vability to wear. It will thus wear as long or longer than harder wood.
In the accompanyings drawing, the sleeper, constructed of spruce or some. other like wood, issho'wn at A, and a. shows the section of solid hard wood inserted therein for the rail to rest upon. Y Y
These recesses, and pieces to tittherein, can be` ont with ease and rapidity by the use of proper machinery.
We do not claim .merely setting blocks of wood into or on a railway-sleeper. Neither do we claim s npporting the cross-ties on beams set within the railroadembankment. Neither do we claim elevating the rails on blocks of wood, so that the cross-ties can be placed beneath the soil, to protect them fmm the weather.
Our invention is dilierent from this in purpose and construction. 'IVe purpose to claim merely the irnprovement to the sleeper herein shown, which provides amore durable part for the rail to rest on, where it 4crosses the sleeper. Neither do we claim the inserting of one kind of wood into another, so that the piece inserted shall not shrink in the bed or recess; but our inventionreiers to an improved railroad-sleeper.
' \Vhat we claim as our invention, and desire to secure by Letters Patent, is- Y The improved railway-sleeper, constructed as described, to wit, with the transverse cuts therein, and the blocks of hard wood inserted therein, as. herein described.
v E. H. WOODSUM. F. H. WHITMAN.-
Witnesses:
J ons MARTIN, M. A. WmzrMAN.
Publications (1)
Publication Number | Publication Date |
---|---|
US91893A true US91893A (en) | 1869-06-29 |
Family
ID=2161371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US91893D Expired - Lifetime US91893A (en) | whitman |
Country Status (1)
Country | Link |
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US (1) | US91893A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2631784A (en) * | 1950-06-30 | 1953-03-17 | Carl G Anderson | Cinder and cement railroad tie with cushioning means |
US2713975A (en) * | 1955-07-26 | Tie plate assembly |
-
0
- US US91893D patent/US91893A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2713975A (en) * | 1955-07-26 | Tie plate assembly | ||
US2631784A (en) * | 1950-06-30 | 1953-03-17 | Carl G Anderson | Cinder and cement railroad tie with cushioning means |
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