US567184A - william h - Google Patents
william h Download PDFInfo
- Publication number
- US567184A US567184A US567184DA US567184A US 567184 A US567184 A US 567184A US 567184D A US567184D A US 567184DA US 567184 A US567184 A US 567184A
- Authority
- US
- United States
- Prior art keywords
- crank
- shaft
- key
- nut
- william
- 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
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Classifications
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- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
- F16D1/0894—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with other than axial keys, e.g. diametral pins, cotter pins and no other radial clamping
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/70—Interfitted members
- Y10T403/7018—Interfitted members including separably interposed key
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2164—Cranks and pedals
Definitions
- Fig. 3 is a plan and an edge View of the crankshaft.
- Fig. et is a plan, side elevation, and rear elevation of key; and Fig. 5, an elevation of the locking cap-nut.
- the purpose of my invention is to overcome the above-recited difliculties and secure a connection between the crank-shaft and crank which shall not materially weaken the latter and also a connection which can be readily disconnected.
- A is the crank-shaft, with flattened sides a a at the end where it enters the crank. It is also dished at b to receive lower end of key.
- the end of the crank is cut out at c to receive shaft and key.
- Integral with the end of said crank is a flange d, threaded to receive cap-nut E.
- the key G is convex at its lower end 9 to fit concavity bin end of crank-shaft and with flat edges to fitin recess 0 of crank. The parts are assembled by slipping crank-shaft into crank-recess, dropping in key G, and screwing down cap-nut.
- crank-shaft a crank recessed longitudinally from one end inwardly to receive said shaft; a key adapted to fit in said recess outside of said shaft end a threaded flange upon the end of said crank and a nut adapted to engage said flange and lock the parts in position.
- crank-shaft with flattened ends and a key-seat; a crank recessed longitudinally from one end inwardly; a key adapted to fit in said recess and in the key-seat in the shaft; a threaded partial collar at the recessed end of the crank and a cap-nut adapted to engage said collar and lock the parts in position.
Description
(N Modem WILLIAMS.
DETAGHABLB CRANK.
No, 567,184. I Patented Sept. 8, 1896.
' WWI/ow m: NORRIS warms co. bnoru-umu. wAsnmaYoN, 0.4:.
UNITED STATES PATENT OFFICE.
WILLIAM H. WILLIAMS, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE U. S. CYCLE IMPROVEMENT COMPANY, OF SAME PLACE.
DETACHABLE CRANK.
SPECIFICATION forming part of Letters Patent No. 567,184, dated September 8, 1896. Application filed November 29, 1895. Serial No. 570,416. (No model.)
To all whom it may concern.-
Be it known that I, WILLIAM H. W'ILLIAMS, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented or dis-,
Fig. 3 is a plan and an edge View of the crankshaft. Fig. et is a plan, side elevation, and rear elevation of key; and Fig. 5, an elevation of the locking cap-nut.
One of the most popular styles of bicyclecranks is perforated to receive the crankshaft and is also perforated at right angles to said first perforation to receive a cotter-pin to lock said shaft in position. These perforations greatly weaken the crank and result in fractures thereof. Besides this the cotter-pin becomes wedged and is difficult to remove with reasonable speed.
The purpose of my invention is to overcome the above-recited difliculties and secure a connection between the crank-shaft and crank which shall not materially weaken the latter and also a connection which can be readily disconnected.
In the accompanying drawings, which make part of this application, A is the crank-shaft, with flattened sides a a at the end where it enters the crank. It is also dished at b to receive lower end of key. The end of the crank is cut out at c to receive shaft and key. Integral with the end of said crank is a flange d, threaded to receive cap-nut E. The key G is convex at its lower end 9 to fit concavity bin end of crank-shaft and with flat edges to fitin recess 0 of crank. The parts are assembled by slipping crank-shaft into crank-recess, dropping in key G, and screwing down cap-nut. To separate the parts, it is only necessary to give a few back turns to the cap-nut without actually remov ing the nut. This is a decided advantage over hammering out a wedged cotter-pin. It should'also be noted that the walls of the crank at recess 0 are not completely out through in the direction of the greatest strain, as in the old-style crank, nor are there crossperforations to weaken the crank at that point. No serious objection can be made on the ground that recess 0 is carried through to the end of the crank, as nut E will compensate for this.
Having described my invention, I claim 1. In detachable cranks, the combination of a crank-shaft; a crank recessed longitudinally from one end inwardly to receive said shaft; a key adapted to fit in said recess outside of said shaft end a threaded flange upon the end of said crank and a nut adapted to engage said flange and lock the parts in position.
2. In detachable cranks, the combination of a crank-shaft with flattened ends and a key-seat; a crank recessed longitudinally from one end inwardly; a key adapted to fit in said recess and in the key-seat in the shaft; a threaded partial collar at the recessed end of the crank and a cap-nut adapted to engage said collar and lock the parts in position.
In testimony whereof I have hereunto set my hand this 23d day of Novemb'er,A. D. 1895.
WILLIAM H. WILLIAMS.
Witnesses:
WALTER SCOTT, WM. L. P nncn.
Publications (1)
Publication Number | Publication Date |
---|---|
US567184A true US567184A (en) | 1896-09-08 |
Family
ID=2635893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US567184D Expired - Lifetime US567184A (en) | william h |
Country Status (1)
Country | Link |
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US (1) | US567184A (en) |
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- US US567184D patent/US567184A/en not_active Expired - Lifetime
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