US172461A - Improvement in chilled car-wheels - Google Patents
Improvement in chilled car-wheels Download PDFInfo
- Publication number
- US172461A US172461A US172461DA US172461A US 172461 A US172461 A US 172461A US 172461D A US172461D A US 172461DA US 172461 A US172461 A US 172461A
- Authority
- US
- United States
- Prior art keywords
- chilled
- wheels
- car
- wheel
- skin
- 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
- 230000007547 defect Effects 0.000 description 5
- 206010039509 Scab Diseases 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B17/00—Wheels characterised by rail-engaging elements
Definitions
- the object of my invention is to render chilled car-Wheels more durable, and this object I attain in the manner which I will 110w proceed to describe.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Description
W. W. LOBDELL.
CHILLED CAR-WHEEL; No. 172,461. Patented Jan.18,1876.
UNITED STATES PATENT, OFFICE,
WILLIAM W. LOBDELL, OF WILMINGTON, DELAWARE.
IMPROVEMENT lN CHILLED CAR-WHEELS.
Specification forming part of Letters Patent No. 172,461, dated January 18, 1876 application filed October 29, 1875.
To all whomt't may concern:
Be it known that I, WILLIAM W. LOBDELL, of Wilmington, Delaware, have invented an Improved Chilled Car-Wheel, of which the following is a specification:
The object of my invention is to render chilled car-Wheels more durable, and this object I attain in the manner which I will 110w proceed to describe.
In manufacturing chilled wheels for railroadcars and locomotives it has heretofore been considered essential to their durability that the skin of the chilled peripheries or rims should remain intact.
I have discovered, however, that the durability and value of a chilled wheel may be en hanced by the removal of the skin, providing certain defects concealed by, and situated be neath, the skin are also removed. These latent defects consist of recesses or chambers, generally very minute; but I have ascertained that they are the cause of the formidable scabs Which frequently appear on the surface of the chilled rim of a wheel which has been in use for some time, the skin of the wheel being fractured where the defects occur, and the fractures increasing in size until the Wheel must eventually be discarded.
Figure 1 of the accompanying drawing will serve to illustrate the character of the Wounds or scabs to which I allude.
I obviate this evil by turning, grinding, or otherwise removing the skin of the chilled rim, and so much of the chilled metal beneath the skin as contains the latent defects; the result of this operation being a car-wheel not only free from the incipient and damaging imperfections, but a perfectly true wheel with a smooth periphery, as shown in Fig. 2.
The general supposition that the removal of the skin Would detract from the durability of the wheel I have ascertained to be erroneon s, a small portion only of the chilled metal being turned off. Practical tests have, in fact, proved that wheels thus treated are more lasti ng than ordinary chilled wheels with the skin intact.
I claim as my invention, and as a new article of manufacture- A cast-iron car-Wheel having a chilled rim from which the latent defects beneath the skin have been removed, as set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
Witnesses: WILLIAM W. LOBDELL.
HARRY HoWsoN, J r., HARRY SMITH.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US172461A true US172461A (en) | 1876-01-18 |
Family
ID=2241868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US172461D Expired - Lifetime US172461A (en) | Improvement in chilled car-wheels |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US172461A (en) |
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0
- US US172461D patent/US172461A/en not_active Expired - Lifetime
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