US144195A - Improvement in car-wheels - Google Patents
Improvement in car-wheels Download PDFInfo
- Publication number
- US144195A US144195A US144195DA US144195A US 144195 A US144195 A US 144195A US 144195D A US144195D A US 144195DA US 144195 A US144195 A US 144195A
- Authority
- US
- United States
- Prior art keywords
- wheels
- ribs
- car
- improvement
- rim
- 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
- 230000003467 diminishing effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005728 strengthening 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 reduce the weight and cost of molding car-wheels without diminishing their strength.
- Figure 1 is a cross-section through the line .r m.
- Fig. 2 is a plan.
- A is the web, curved snfciently to give it lateral strength without diminishing its crushing strength.
- the large rib B extends from the inside edge of the rim C to the hub D, thus increasing the strength of the web A, not only near the rim O, but more particularly at what would otherwise be its weakest point, viz., where it connects with the hub D.
- E are small intermediate ribs placed between the larger ones, B, for the purpose of resisting the lateral strain acting upon the web A and rim (l.
- the ribs B and E are placed alternately.
- Seither set of ribs are plaeedopposite to each other on a line through the center, as is usually the case, but are arranged as shown in Fig.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motorcycle And Bicycle Frame (AREA)
Description
UNITED STATES PATENT OFFICE.
GORDON ELMSLIE, OF TORONTO, CANADA.
IMPROVEMENT IN CAR-WHEELS.
Speeilieaton forming part of Letters Patent No. 144,195, dated November 4, 1873,' application filed March 27, 1873.
To all whom it may concern:
Be it known that I, GORDON ELMsLiE, of the city of Toronto, in the county of York, in the Province of Ontario, Canada, have invented certain new and useful Improvements in OarlYheels, of which the following is a speciiication:
The object of my invention is to reduce the weight and cost of molding car-wheels without diminishing their strength.
Figure 1 is a cross-section through the line .r m. Fig. 2 is a plan.
In the design illustrated by the accompanying drawing I have attained this desideratum, which, after a practical test, has fulfilled my highest hope, and enables me to assert my elaiin with confidence.
A is the web, curved snfciently to give it lateral strength without diminishing its crushing strength. The large rib B extends from the inside edge of the rim C to the hub D, thus increasing the strength of the web A, not only near the rim O, but more particularly at what would otherwise be its weakest point, viz., where it connects with the hub D. E are small intermediate ribs placed between the larger ones, B, for the purpose of resisting the lateral strain acting upon the web A and rim (l. The ribs B and E are placed alternately. Seither set of ribs are plaeedopposite to each other on a line through the center, as is usually the case, but are arranged as shown in Fig. 1, `each rib being curved, so that, while not being sufficiently curved to diminish its crushing strain, it would at the same time be impossible to draw a straight line on the surface of the rib. This point has been found to be most important, as straight ribs almost invariably crack when the metal is cooling', while my curved ribs merely bend more as the body of the metal shrinks.
I am aware that single-plate wheels have been made; but the ribs are nearly straight, and no intermediate or small ribs like E are used; nor do the ribs extend from the hub to the rim, as 'in my design. I do not claim a single-plate ear-wheel as my invention, nor the simple addition of ribs for strengthening the same; but
A ear-wheel having the outer surface of the
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US144195A true US144195A (en) | 1873-11-04 |
Family
ID=2213608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US144195D Expired - Lifetime US144195A (en) | Improvement in car-wheels |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US144195A (en) |
-
0
- US US144195D patent/US144195A/en not_active Expired - Lifetime
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