US8106A - Cast-iron cab-wheel - Google Patents
Cast-iron cab-wheel Download PDFInfo
- Publication number
- US8106A US8106A US8106DA US8106A US 8106 A US8106 A US 8106A US 8106D A US8106D A US 8106DA US 8106 A US8106 A US 8106A
- Authority
- US
- United States
- Prior art keywords
- wheel
- cast
- hub
- rim
- iron
- 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
- 229910001018 Cast iron Inorganic materials 0.000 title description 4
- WYTGDNHDOZPMIW-UHOFOFEASA-O Serpentine Natural products O=C(OC)C=1[C@@H]2[C@@H]([C@@H](C)OC=1)C[n+]1c(c3[nH]c4c(c3cc1)cccc4)C2 WYTGDNHDOZPMIW-UHOFOFEASA-O 0.000 description 24
- 239000007787 solid Substances 0.000 description 10
- 230000035939 shock Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003313 weakening Effects 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
- B60B17/0006—Construction of wheel bodies, e.g. disc wheels
- B60B17/002—Construction of wheel bodies, e.g. disc wheels with counter-balance
Definitions
- the convexities and concavities of the serpentine plate D are curved from the center toward the rim of the wheel in radial directions, as denoted by the red lines b, b, c, c, in Figs. 1, and 2.
- the serpentine plate D at its connection with the rim, has a waved or ser pentine joining, such as insures strengthy to resist both vertical and lateral shocks.
- the tread of the rim is founded against a chill in the usual way, and the wheel cast at once in one entire piece.
- Vhat I claim as my invention is- The above described improvement or wheel made with a chilled rim, either a solid hub, or one divided crosswise of its axis, two plates or disks B, C, united in a serpentine curve at their outer peripheries, a third plate D, not only made serpentine concentrically with the hub but curved in ⁇ radial directions as described, all cast or founded and combined together in one piece substantially ⁇ in the manner as herein before specified.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
- Motorcycle And Bicycle Frame (AREA)
Description
ALBERT HEBBARD, OF WORCESTER, MASSACHUSETTS.`
CAST-IRON can-WHEEL.
Specification of Letters Patent No. 8,106, dated May 20, 18511.
3, a central and transverse section of my improved wheel.
It is well known` that much difficulty has been experienced in producing by the operation of founding, an entire cast iron railroad wheels, or those 1n which the rim and hub or patterns havingl been devised for such purpose. It has been found that most of j what are termed the plate or double plate wheels, or those in which the rim and hub are connected together `by one or more curved platesor disks, are liable to fracture at the rim or tread, whenunder very high velocities, and running upon a railway. I would remark that in order to overcomethe disastrous effects liable to be .produced by contraction of the `metal of the plates during the process of casting, they have been made with concentric undulations, extending bej tween` the hub and rim, such undulations producingaserpentine curve in the section of the plate, provided such section be taken ina radial plane from the hub to the rim. Undulations or curves so arranged, have `a tendency `to `greatly weaken the* plate in radial directions.` A wheel constructed with straight spokes, is generally considered as better adapted to withstand shocks, than one having curved spokes. It has been considered exceedingly difficult if not impossible to cast a straight spoke wheel, with a chilled rim, and a solid vorundivided hub. In order to produce such it became necessary to split or divide the hub into sections, thereby not only greatly weakening it, but requiring much labor and expense to prepare it for the axle. v
There are some disadvantages also attending the double plate wheel, one of which is that in order to insure the required l strength to the plates, it becomes necessary to put into both ofthe plates much more the hub and the rim. Besides it has the ad-` vantage of not only a solid, but what is usually termed an undivided hub.
In the drawings, A represents the hub,"
which isa solid cylindric tube of metal, extending through the wheel. It may however be separated into two parts transversely of its axis if desirable, but as this weakens the hub, I prefer to cast it solid or in one entire piece excepting the hole a, through it for the reception of the axle. .From the two ends` of this hub two plates or disks B, C, extend and unite together in a serpentine line, or joining, and with a single plate D, to which a corresponding serpentine form 'is `given entirely around or concentric with the hub, the curved sinuosities of said plate 'increasing in size from the joining of it with the plates B, C, to the rim E, as seen in the drawings. I would remark also, that the convexities and concavities of the serpentine plate D, are curved from the center toward the rim of the wheel in radial directions, as denoted by the red lines b, b, c, c, in Figs. 1, and 2. The serpentine plate D, at its connection with the rim, has a waved or ser pentine joining, such as insures strengthy to resist both vertical and lateral shocks. `The tread of the rim is founded against a chill in the usual way, and the wheel cast at once in one entire piece.
Vhat I claim as my invention is- The above described improvement or wheel made with a chilled rim, either a solid hub, or one divided crosswise of its axis, two plates or disks B, C, united in a serpentine curve at their outer peripheries, a third plate D, not only made serpentine concentrically with the hub but curved in `radial directions as described, all cast or founded and combined together in one piece substantially `in the manner as herein before specified.
In testimony whereof I have hereto set my signature, this fourteenth day of April A. D. 1851. i
ALBERT HEBBARD.
Witnesses HENRY CHAPIN, THOMAS EARLE.
Publications (1)
Publication Number | Publication Date |
---|---|
US8106A true US8106A (en) | 1851-05-20 |
Family
ID=2068432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US8106D Expired - Lifetime US8106A (en) | Cast-iron cab-wheel |
Country Status (1)
Country | Link |
---|---|
US (1) | US8106A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6302493B2 (en) * | 1998-10-26 | 2001-10-16 | Harley-Davidson Motor Company Group, Inc. | Lightweight motorcycle wheel |
-
0
- US US8106D patent/US8106A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6302493B2 (en) * | 1998-10-26 | 2001-10-16 | Harley-Davidson Motor Company Group, Inc. | Lightweight motorcycle wheel |
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