US611A - dunham - Google Patents
dunham Download PDFInfo
- Publication number
- US611A US611A US611DA US611A US 611 A US611 A US 611A US 611D A US611D A US 611DA US 611 A US611 A US 611A
- Authority
- US
- United States
- Prior art keywords
- wheel
- rim
- dunham
- henry
- arms
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000005266 casting Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000000137 annealing Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Mechanical Operated Clutches (AREA)
- Braking Arrangements (AREA)
Description
, 2 Sheets-Sheet I. H. R. DUNHA'M. 7
Car Wheel.
Pat nted Feb. 15 1838.
2 Sh t Sh t2. H. R. DUNHAM. 86$ 68 Car Wheel.
Patehted Feb. 15; 1838.
UNITED STATES PATENT OFFICE.
HENRY R. DUNI-IAM, OF NEW YORK, N.
MAKING LOCOMOTIVE-ENGINE AND RAILROAD-CAR WHEELS.
Specification of Letters Patent No. 611, dated February 15, 1838.
To all whom it may concern:
Be it known that I, HENRY R. DUNHAM, of the city, county, and State of New York, engineer and machinist, have invented a new and useful Method or Improvement in Making" Locomotive-Engine and Railroad- Car IVheels; and I do hereby declare that the following is-a full and exact description thereof.
This wheel I cast in an iron mold and is properly called the chilled wheel from the fact of being hardened on the entire periphery caused by coming in contact with the iron mold at the time of casting it; but instead of continuing the arms of the wheel to the rim as is now the case and partly by annealing that section of the rim to which it extends I make two rims, the space between them being two inches, the same can be more or lessand continue the arms of the wheel no farther than the inner rim, thereby leaving an uninterrupted space under the outer rim of two inches more or less; which gives to the outer or chilled rim an even temperatured or chilled surface (more durable and not liable to flatten opposite the arms obviating that difliculty in the wheels now in use) the outer rim being connected by the sides or edges to the inner rim, to
which the arms of the wheel extend. The space between the inside and outside rim is made by the insertion of cores supported at intervals by cores in the usual manner.
What I claim as my invention or improve ment and desire to secure by Letters Patent 1s The making of two rims, connected at the sides and leaving an uninterrupted space under the outside rim, excepting where it is joined at the edges or sides of the wheel and the said vacant uninterrupted space is represented by the drawing herewith sent, and is marked S, on said drawing extending entirely around the circumference of the wheel between the outer and inner rim in other words constituting a hollow felly cast in one hollow connectedmass entirely around said wheel,and the whole wheel it may further be remarked is cast in an entire casting.
In testimony whereof I the said HENRY It. DUNHAM, have hereunto subscribed my name in the presence of two witnesses whose names are also hereunto subscribed on this eighteenth day of November A. D. 1837.
HENRY DUNHAM.
WVitnesses:
SAMUEL A. P RTER, I PHILANDER FrsK.
Publications (1)
Publication Number | Publication Date |
---|---|
US611A true US611A (en) | 1838-02-15 |
Family
ID=2060893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US611D Expired - Lifetime US611A (en) | dunham |
Country Status (1)
Country | Link |
---|---|
US (1) | US611A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050072802A1 (en) * | 2003-05-09 | 2005-04-07 | Todd Hanna | Dispensing system and method of manufacturing and using same with a dispenser tip management |
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0
- US US611D patent/US611A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050072802A1 (en) * | 2003-05-09 | 2005-04-07 | Todd Hanna | Dispensing system and method of manufacturing and using same with a dispenser tip management |
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