US624177A - Bicycle-chain - Google Patents
Bicycle-chain Download PDFInfo
- Publication number
- US624177A US624177A US624177DA US624177A US 624177 A US624177 A US 624177A US 624177D A US624177D A US 624177DA US 624177 A US624177 A US 624177A
- Authority
- US
- United States
- Prior art keywords
- chain
- drive
- spherical portion
- bicycle
- wheel
- 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
- 238000010276 construction Methods 0.000 description 6
- 240000001973 Ficus microcarpa Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/06—Gearings for conveying rotary motion by endless flexible members with chains
Definitions
- My invention relates to certain new and useful improvements in drive-chains.
- This invention relates to chains, usually known as driving-chains, for transmitting motion either for bicycles or any other machine or purposes where such chain drivinggear is used or applicable.
- Afurther object of my invention is to pro- Vide an improved construction in drive-chain by which all friction is eliminated, and the dirt or foreign matter which may fall upon the drive-wheel will be immediately freed therefrom,so as not to interfere with the chain and cause friction.
- My invention particularly consists in the novel construction of my drive-chain, it being formed of a series of ball-links or spherical portions pivotally secured to each other at their center, hereinafter more fully described.
- Figure l is a side View of my improved drive-chain as applied to the drive-wheel of a bicycle, which is partly partly broken away at its upper edge.
- Fig. 2 is a sectional View of the drive wheel and chain taken on the line @c oc
- Fig. 3 is a top plan view of a part of the rim of the wheel, showing the drivech ain applied thereto.
- Fig. 4 is a top plan view of a portion of the rim of the drive-wheel.
- Fig. 5 is a top plan view of one of the chain-links.
- Fig. 6 is a side View thereof.
- l indicates thedrive-wheel, the periphery of which has a series of cavities '5o formed thereon.
- the cavities 2 are semispherical in shape and are adapted to receive the spherical portion 3 of the drive-chain. This spherical portion is cut away, forming an oblong slot, as at et, to receive the link 5, formed integral with the side of the adjacent spherical portion.
- a series of links each of which is formed of a spherical portion which is cut away on its one side to form an oblong slot, a flat circular extension formed integral with the spherical portion in horizontal alinement with the oblong slot and adapted to be secured in the slot of the adjacent link, substantially as described.
- a series of links each of which is formed with a spherical portion which is cut away on one side to form an oblong slot, aiiat circular extension formed integral with the spherical portion of each link opposite the cut-away portion and in vertical alinement therewith and which is adapted to be secured in the oblong slot of the adjacent link, in combination with a drive-wheel hav ing semicircular cavities in its periphery to 'receive the spherical portions of the links,
Description
ATnN'r VALTER A. CHURCH, vOF PITTSBURG, PENNSYLVANIA.
BICYCLE-CHAIN.
SPECIFICATION forming part of Letters Patent No. 624,177, dated May 2, 1899.
Application led July 22,1898. Serial No. 686,553. (No model.)
To all whom in' may concern:
Be it known that I, WALTER A. CHURCH, a citizen of the United States of America, resid- A.ing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Bi cycle-Chai ns, of which the following is a speciiication, reference being had therein to the accompanying drawings.
My invention relates to certain new and useful improvements in drive-chains.
This invention relates to chains, usually known as driving-chains, for transmitting motion either for bicycles or any other machine or purposes where such chain drivinggear is used or applicable.
Afurther object of my invention is to pro- Vide an improved construction in drive-chain by which all friction is eliminated, and the dirt or foreign matter which may fall upon the drive-wheel will be immediately freed therefrom,so as not to interfere with the chain and cause friction.
My invention particularly consists in the novel construction of my drive-chain, it being formed of a series of ball-links or spherical portions pivotally secured to each other at their center, hereinafter more fully described.
My invention finally consists in the novel combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawings, and particularly pointed out in the claims.
In the drawings, Figure l is a side View of my improved drive-chain as applied to the drive-wheel of a bicycle, which is partly partly broken away at its upper edge. Fig. 2 is a sectional View of the drive wheel and chain taken on the line @c oc, Fig. l. Fig. 3 is a top plan view of a part of the rim of the wheel, showing the drivech ain applied thereto. Fig. 4 is a top plan view of a portion of the rim of the drive-wheel. Fig. 5 is a top plan view of one of the chain-links. Fig. 6 is a side View thereof.
Referring to the drawings, in which like numerals of reference indicate corresponding parts throughout the several views of the drawings, l indicates thedrive-wheel, the periphery of which has a series of cavities '5o formed thereon. The cavities 2 are semispherical in shape and are adapted to receive the spherical portion 3 of the drive-chain. This spherical portion is cut away, forming an oblong slot, as at et, to receive the link 5, formed integral with the side of the adjacent spherical portion. An aperture Gis formed in the link 5, which coincides with an aperture 7 formed in the spherical portion 3, and the link 5 and spherical portion are adapted to be pivotally secured together by the insertion through the said apertures of a pivot-pin 8..
It will be noted that various changes may be made in the details of construction without departing from the general spirit of my invention.
Having thus described myinvention, what I claim, and desire to secure by Letters Patent, is-
l. In a drive-chain, a series of links each of which is formed of a spherical portion which is cut away on its one side to form an oblong slot, a flat circular extension formed integral with the spherical portion in horizontal alinement with the oblong slot and adapted to be secured in the slot of the adjacent link, substantially as described.
2. In a drive-chain, a series of links each of which is formed with a spherical portion which is cut away on one side to form an oblong slot, aiiat circular extension formed integral with the spherical portion of each link opposite the cut-away portion and in vertical alinement therewith and which is adapted to be secured in the oblong slot of the adjacent link, in combination with a drive-wheel hav ing semicircular cavities in its periphery to 'receive the spherical portions of the links,
substantially as described.
In testimony whereof I aiiix my signature in the presence of two witnesses.
VVAL'IER A. CHURCH.
Vitnesses:
JOHN NOLAND, II. H. PATTERSON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US624177A true US624177A (en) | 1899-05-02 |
Family
ID=2692781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US624177D Expired - Lifetime US624177A (en) | Bicycle-chain |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US624177A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4214488A (en) * | 1977-10-27 | 1980-07-29 | Dynaloc Corporation | Positive drive system |
| US20070230252A1 (en) * | 2006-03-21 | 2007-10-04 | Stmicroelectronics S.R.L. | Row selector for a semiconductor memory device |
-
0
- US US624177D patent/US624177A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4214488A (en) * | 1977-10-27 | 1980-07-29 | Dynaloc Corporation | Positive drive system |
| US20070230252A1 (en) * | 2006-03-21 | 2007-10-04 | Stmicroelectronics S.R.L. | Row selector for a semiconductor memory device |
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