US582945A - William pearson - Google Patents

William pearson Download PDF

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US582945A
US582945A US582945DA US582945A US 582945 A US582945 A US 582945A US 582945D A US582945D A US 582945DA US 582945 A US582945 A US 582945A
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pearson
axle
chain
driving
tube
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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
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/16—Tensioning or adjusting equipment for chains, belts or the like

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  • VILLIAM PEARSON OF BIRMINGHAM, ENGLAND.
  • the driving-wheel of a bicycle runs on a stationary axle which is held in eyes of the framing, made adjustable for the purpose of tightening the driving-chain.
  • This invention relates to the construction and fitting of these adjustable eyes and the parts of the frame-tubes in which they are fitted, as will be described, referring to the laccompanying drawings.
  • Figure l is afront view of part of rone of the tubes which connect the pedal-axle to the 'axle of the driving-wheel in the front stage of the operation upon it, its end part being reduced a little in diameter.
  • Fig. 2 shows the tube with part iiattened.
  • Fig. 3 shows the flattened part slotted and its end adapted to receive the tighten ing-screw.
  • Fig. 4t is a side view.
  • the rst stage of the operation is to reduce part of the tube which has generally the section A toa section B of smaller diameter, so that when the tube is flattened, as shown in Fig. 2, to have a section C, the width of the flattened part shall not too much exceed the diameter of the tube before its reduction.
  • the end of the flattened part is closed, a slot D is cut in the flattened part, and the part S beyond the slot is swelled out, so as to form ahole to admit the screwed stem of the eye E, holding the axle on which the drivin g-Wheel revolves.
  • B y means of the nut N the eye E is moved so as to drawback the axle, and thus tighten the driving-chain, which passes partly around the sprocket- Wheel attached to the driving-wheel.
  • a chain-adj uster comprising a tube having at one end a iiattened portion provided with a longitudinal slot, the attened portion at the end of the slot being swelled out or drawn apart to receive an adjusting device contained within it.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Description

(No Model.)
W. PEARSON. GRAIN ADJUSTING DEVICE.
No. 582,945. Patented May 18, 1897.
UNITED STATES PATENT OFFICE'.
VILLIAM PEARSON, OF BIRMINGHAM, ENGLAND.
CHAIN-ADJUST'ING DEVICE.
SPECIFICATION forming part of Letters Patent N O. 582,945, dated May 18, 1897.
Application iiled November 25, 1896. Serial No. 613,408. (No model.)
T all whom t may concern:
Be it known that I, WILLIAM PEARsoN, a citizen of England, residing at 189 Vauxhall Road, Birmingham, in the county of War- Wick, England, have invented a certain new and useful Chain-Adjusting Device, of which the following is a specification.
The driving-wheel of a bicycle runs on a stationary axle which is held in eyes of the framing, made adjustable for the purpose of tightening the driving-chain.
This invention relates to the construction and fitting of these adjustable eyes and the parts of the frame-tubes in which they are fitted, as will be described, referring to the laccompanying drawings.
Figure l is afront view of part of rone of the tubes which connect the pedal-axle to the 'axle of the driving-wheel in the front stage of the operation upon it, its end part being reduced a little in diameter. Fig. 2 shows the tube with part iiattened. Fig. 3 shows the flattened part slotted and its end adapted to receive the tighten ing-screw. Fig. 4t is a side view.
As shown in Fig. l, the rst stage of the operation is to reduce part of the tube which has generally the section A toa section B of smaller diameter, so that when the tube is flattened, as shown in Fig. 2, to have a section C, the width of the flattened part shall not too much exceed the diameter of the tube before its reduction. The end of the flattened part is closed, a slot D is cut in the flattened part, and the part S beyond the slot is swelled out, so as to form ahole to admit the screwed stem of the eye E, holding the axle on which the drivin g-Wheel revolves. B y means of the nut N the eye E is moved so as to drawback the axle, and thus tighten the driving-chain, which passes partly around the sprocket- Wheel attached to the driving-wheel.
Having thus described the nature of this invention and the best means I know of carrying the same into practical eect, I claim- A chain-adj uster comprising a tube having at one end a iiattened portion provided with a longitudinal slot, the attened portion at the end of the slot being swelled out or drawn apart to receive an adjusting device contained within it.
In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 5th day of November, A. D. 1896.
WILLIAM PEARSON.
Witnesses:
ALBERT NEMEY, Trios. DAvIs.
US582945D William pearson Expired - Lifetime US582945A (en)

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