US657859A - Driving-gear for velocipedes. - Google Patents

Driving-gear for velocipedes. Download PDF

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Publication number
US657859A
US657859A US66407197A US1897664071A US657859A US 657859 A US657859 A US 657859A US 66407197 A US66407197 A US 66407197A US 1897664071 A US1897664071 A US 1897664071A US 657859 A US657859 A US 657859A
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Prior art keywords
velocipedes
stroke
driving
gear
cranks
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Expired - Lifetime
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US66407197A
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James Cottrell
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Priority to US66407197A priority Critical patent/US657859A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62MRIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M3/00Construction of cranks operated by hand or foot
    • B62M3/003Combination of crank axles and bearings housed in the bottom bracket
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/21Elements
    • Y10T74/2164Cranks and pedals
    • Y10T74/2165Cranks and pedals with attached gear
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/21Elements
    • Y10T74/2164Cranks and pedals
    • Y10T74/2167Variable

Definitions

  • the purpose of my invention is to give the rider of velocipedes greater control over the action of the cranks used forpropelling,where by a continuous driving power can be transmitted; and it consists in giving a slower downward stroke to the cranks in proportion to the upward stroke, by which means I obtain a longer period or time for the pressure of the foot or power to be exerted and a shorter period or time for the upward or unused stroke.
  • Fig. 3 gives a general section showing how the bearings, tube, and spindle are placed and fitted.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)

Description

Patented Sept. Il, |900.
(Application med Dec. 28, 1897.)
(No Modal.)
wAsn
UNTTED STATES PATENT OFFICE.
JAMES COTTRELL, OF LONDON, ENGLAND, ASSIGNOR OF ONE-HALF TO ALFRED HENRY SMITH, OF SAME PLACE.
DRIVING-G EAR FOR VELOCIPEDES.
SPECIFICATION forming part of Letters Patent No. 657,859, dated September 11, 1900.
Application led December 28, 1897. Serial No. 664,071. tNo model.)
To all whom it may concern:
Be it known that I, JAMES OOTTEELL, a subject of the Queen of the United Kingdom'of Great Britain and Ireland, formerly of No.
- are to be taken as part of this specification and read therewith, and one which will enable others skilled in the art to which it appertains to make and use the same.
The purpose of my invention is to give the rider of velocipedes greater control over the action of the cranks used forpropelling,where by a continuous driving power can be transmitted; and it consists in giving a slower downward stroke to the cranks in proportion to the upward stroke, by which means I obtain a longer period or time for the pressure of the foot or power to be exerted and a shorter period or time for the upward or unused stroke. The upward stroke being the faster it will travel through a greater arc or distance in the same time than the downward or slower stroke travels and will thereby overlap what are termed the dead-centers and get in a position for use before the downward stroke is completed, Figure l, faster stroke a, slower stroke b, allowing the use of a continuous propelling power and enabling the velocipede to be started in motion at any part of the stroke.
In carrying my invention into practice I connect the action of the cranks and other fittings, hereinafter described, to the hubof the ordinary7 or the chain wheel of a safety type of machine by links, Fig. 2, c c
the variation in the radius requiring the use of slots or connecting-links, as before described. I make the hub of the ordinary or the chain-wheel of a safety type of machine to turn on a bearing of diameter large enough to admit of the crank-spindle passing through at about half an inch, more o1' less, out of the true center of the said hub or chain-wheel, Fig. 3, the cranks to be fitted one on a tube, Fig. 3, F, and the other to a taper-spindle to allow of adjustment, Fig. 3, G. Attached to the tube is an arm II, Figs. 2 and 3, to connect the action of the crank F with the chainwheel by the aforesaid links o, Fig. 2.
Fig. 3 gives a general section showing how the bearings, tube, and spindle are placed and fitted.
Although no part of the invention, ballbearings may be iitted to the wearing parts,`
.I AMES COTTRELL.
lVitnesses:
Roer. A. BLAKE, R. A. SMITH.
US66407197A 1897-12-28 1897-12-28 Driving-gear for velocipedes. Expired - Lifetime US657859A (en)

Priority Applications (1)

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US66407197A US657859A (en) 1897-12-28 1897-12-28 Driving-gear for velocipedes.

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US66407197A US657859A (en) 1897-12-28 1897-12-28 Driving-gear for velocipedes.

Publications (1)

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US657859A true US657859A (en) 1900-09-11

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US66407197A Expired - Lifetime US657859A (en) 1897-12-28 1897-12-28 Driving-gear for velocipedes.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271719A (en) * 1979-06-13 1981-06-09 Foster King Bicycle lever assembly
US5515746A (en) * 1993-12-16 1996-05-14 Yamaguchi; Kiyoshi Traveling driving device for a bicycle
DE102017010265A1 (en) * 2017-11-07 2019-05-09 Bernhard König Lever mechanical module

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271719A (en) * 1979-06-13 1981-06-09 Foster King Bicycle lever assembly
US5515746A (en) * 1993-12-16 1996-05-14 Yamaguchi; Kiyoshi Traveling driving device for a bicycle
DE102017010265A1 (en) * 2017-11-07 2019-05-09 Bernhard König Lever mechanical module

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