US675391A - Bicycle-frame. - Google Patents

Bicycle-frame. Download PDF

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Publication number
US675391A
US675391A US3917700A US1900039177A US675391A US 675391 A US675391 A US 675391A US 3917700 A US3917700 A US 3917700A US 1900039177 A US1900039177 A US 1900039177A US 675391 A US675391 A US 675391A
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United States
Prior art keywords
frame
casing
pedal
engine
post
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
Application number
US3917700A
Inventor
Robert M Keating
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
R M KEATING MOTOR Co
Original Assignee
R M KEATING MOTOR Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by R M KEATING MOTOR Co filed Critical R M KEATING MOTOR Co
Priority to US3917700A priority Critical patent/US675391A/en
Application granted granted Critical
Publication of US675391A publication Critical patent/US675391A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M7/00—Motorcycles characterised by position of motor or engine

Definitions

  • This invention relates to bicycle-frames.
  • the object of the invention is to produce a frame for motor-bicycles which shall have the simplicity and strength of the well-known diamond frame and the capacity for compactly storing and retaining the engine in place, together with supports for the usual pedal-motor.
  • Figure 1 is a side elevation of the frame, engine casing, and reduction gear casing.
  • Fig. 2 is a bottom plan of the same.
  • Fig. 3 is a broken perspective of pedal-shaft hanger, showing its relation to the frame and enginecoupling.
  • Fig. 4 is a perspective of enginecasing with gear-casing broken away.
  • Fig. 5 is a perspective of bar-coupling.
  • the frame in the main consists of the front post 1, front top bar 2, front bottom bar 3, seat-post 4, and the rear top bars 5, arranged in their usual relation.
  • the rear lower bars 6 are shorter than usual, and While connecting with the wheel-forks 7 in usual manner are joined by a cross-bar 8 in rear of the seat-post 4.
  • the cross-bar 8 is in form of a U, having upper and lower and upright leaf. These leaves embrace a rectangular projection 9 on the engine casing 10. Bolts having their heads inside the casing project through holes 11, so that the rear bars can be held to the casing by tightening these nuts.
  • the pedal bracket or shaft hanger 14 has levers 15 and 16 projecting in the rear of the seat-post and an upright leaf 17, which is perforated for the passage of bolts 29, which extend through holes 19 in the engine-casing.
  • the engine-casing thus forms an extension of the rear lower bars of the frame, but can beremoved from the frame by removing the nuts from the retaining-bolts.
  • the spring of the frame will generally permit the removal and replacement of the engine casing with bolts in place in the casing.
  • the rear bars are generally held to the seat-post by a bolt 20, which permits the rear part of frame to swing back from the seat post. In solid frames there is usually sufficient elasticityin the frame-bars to permit such coupling.
  • the driving-pinion of the engine is inclosed by the projection 21 of the gear-casing 22.
  • the gearcasing 22 extends alongside the hanger 14, and the central openingin the gearcasing corresponds with that in the pedalshat't hanger.
  • the pedal-shaft can then pass through the gear and casing, and connection from the gear is made to the pedal-shaft if desirable.
  • the casing for the reduction-gear thus becomes a link in the longitudinal construction of the frame and adds its strength thereto.
  • a frame for motor-bicycles having front post, top and bottom bars, and seat-post connected to the pedal-bracket as described, the upper rear bars connected to the seat-post and wheel-forks, the lower rear bars connected to the wheel-forks and joined by a crossbar at the front, the pedal-bracket having a perforated upright leaf, and the engine-frame provided with bolts by which the engine is held to 'the pedal-bracket in front, and to the said cross-bar in the rear, substantially as described.
  • the frame for motor-bicycles consisting essentially of the usual front and upper parts, the seat-post and lower front bar connected to the pedal-bracket, the engine-casing connected to the pedal-bracket at the rear thereof, the rear lower bars connected to the engine-frame, and the gear-casing overlapping the engine-casing and centered alongside the pedal-bracket, so that the pedal-shaft can pass through said casing and bracket, substantially as described.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Description

m. 675,3-9l. Patented June 4, I90l. 3.. m. KEATING. BICYCLE FRAME.
(Application filed Dec. 8, 1900..
(No Model.)
UNITED STATES PATENT FFICE.
ROBERT M. KEATING, 0F MIDDLETOWN, CONNECTICUT, ASSIGNOR TO B. M. KEATING MOTOR COMPANY, OF PORTLAND, MAINE.
BlCYCLE-FRAM E.
SPECIFICATION forming part of Letters Patent No. 675,391, dated June 4, 1901.
Application filed December 8, 1900. Serial No. 39,177. (No model.)
To all whom it may concern.-
Be it known that 1, ROBERT M. KEATING, residing at Middletown, in the State of Connecticut, have invented certain new anduseful Improvements in Bicycle=Frames,of which the following is a specification, reference being had therein to the accompanying drawings.
This invention relates to bicycle-frames.
The object of the invention is to produce a frame for motor-bicycles which shall have the simplicity and strength of the well-known diamond frame and the capacity for compactly storing and retaining the engine in place, together with supports for the usual pedal-motor.
Figure 1 is a side elevation of the frame, engine casing, and reduction gear casing. Fig. 2 is a bottom plan of the same. Fig. 3 is a broken perspective of pedal-shaft hanger, showing its relation to the frame and enginecoupling. Fig. 4 is a perspective of enginecasing with gear-casing broken away. Fig. 5 is a perspective of bar-coupling.
The frame in the main consists of the front post 1, front top bar 2, front bottom bar 3, seat-post 4, and the rear top bars 5, arranged in their usual relation.
The rear lower bars 6 are shorter than usual, and While connecting with the wheel-forks 7 in usual manner are joined by a cross-bar 8 in rear of the seat-post 4.
The cross-bar 8 is in form of a U, having upper and lower and upright leaf. These leaves embrace a rectangular projection 9 on the engine casing 10. Bolts having their heads inside the casing project through holes 11, so that the rear bars can be held to the casing by tightening these nuts.
The pedal bracket or shaft hanger 14 has levers 15 and 16 projecting in the rear of the seat-post and an upright leaf 17, which is perforated for the passage of bolts 29, which extend through holes 19 in the engine-casing. The engine-casing thus forms an extension of the rear lower bars of the frame, but can beremoved from the frame by removing the nuts from the retaining-bolts. The spring of the frame will generally permit the removal and replacement of the engine casing with bolts in place in the casing. The rear bars are generally held to the seat-post by a bolt 20, which permits the rear part of frame to swing back from the seat post. In solid frames there is usually sufficient elasticityin the frame-bars to permit such coupling.
The driving-pinion of the engine is inclosed by the projection 21 of the gear-casing 22. The gearcasing 22 extends alongside the hanger 14, and the central openingin the gearcasing corresponds with that in the pedalshat't hanger. The pedal-shaft can then pass through the gear and casing, and connection from the gear is made to the pedal-shaft if desirable. The casing for the reduction-gear thus becomes a link in the longitudinal construction of the frame and adds its strength thereto.
What I claim is 1. A frame for motor-bicycles, having front post, top and bottom bars, and seat-post connected to the pedal-bracket as described, the upper rear bars connected to the seat-post and wheel-forks, the lower rear bars connected to the wheel-forks and joined by a crossbar at the front, the pedal-bracket having a perforated upright leaf, and the engine-frame provided with bolts by which the engine is held to 'the pedal-bracket in front, and to the said cross-bar in the rear, substantially as described.
2. The frame for motor-bicycles consisting essentially of the usual front and upper parts, the seat-post and lower front bar connected to the pedal-bracket, the engine-casing connected to the pedal-bracket at the rear thereof, the rear lower bars connected to the engine-frame, and the gear-casing overlapping the engine-casing and centered alongside the pedal-bracket, so that the pedal-shaft can pass through said casing and bracket, substantially as described.
In testimony whereof I affix my signature in presence of two witnesses.
ROBERT M. KEATING. Witnesses:
W. A. BARTLETT, HARVEY T. WINFIELD.
US3917700A 1900-12-08 1900-12-08 Bicycle-frame. Expired - Lifetime US675391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US3917700A US675391A (en) 1900-12-08 1900-12-08 Bicycle-frame.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3917700A US675391A (en) 1900-12-08 1900-12-08 Bicycle-frame.

Publications (1)

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US675391A true US675391A (en) 1901-06-04

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US3917700A Expired - Lifetime US675391A (en) 1900-12-08 1900-12-08 Bicycle-frame.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2574602A (en) * 1946-10-25 1951-11-13 Dev Corp Inc Engine suspension
US3773131A (en) * 1970-03-31 1973-11-20 Motobecane Ateliers Electric autocycle
US20130032425A1 (en) * 2011-08-03 2013-02-07 National Cheng Kung University Bicycle transmission device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2574602A (en) * 1946-10-25 1951-11-13 Dev Corp Inc Engine suspension
US3773131A (en) * 1970-03-31 1973-11-20 Motobecane Ateliers Electric autocycle
US20130032425A1 (en) * 2011-08-03 2013-02-07 National Cheng Kung University Bicycle transmission device

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