US641668A - Endless-chain propeller. - Google Patents

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Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
  • F03B—MACHINES OR ENGINES FOR LIQUIDS
  • F03B17/00—Other machines or engines
  • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
  • F03B17/062—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
  • F03B17/065—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having a cyclic movement relative to the rotor during its rotation
  • F03B17/066—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having a cyclic movement relative to the rotor during its rotation and a rotor of the endless-chain type
• • 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
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E10/00—Energy generation through renewable energy sources
  • Y02E10/20—Hydro energy

Definitions

• My invention relates to that class of propellers known as endless-chain paddles and it consists more especially in a peculiar arrangement for guiding the paddles in such a way as to insure to the propelled vehicle the most advantageous propulsion and to the propeller the most effective utilization.
• Figure l is an elevation and Fig. 2 a view from above.
• Fig. 3 is a section through the back part of the propeller as seen from behind, and in Fig. 4 a front and side elevation of one of the paddles is shown.
• This propeller which may be located either in a Well-hole in some suitable part of the ship or one on each side of the ship, as shown in the drawings, consists of two pairs of sprocket wheels 2 and 3, each pair being mounted on one common shaft 1 and 4E, and two chains 5 5, running one on the inside and one on the outside wheels.
• the shafts of the sprocket-wheels either one or both may be connected in any suitable way with the crank of a motor or with a crooked handle, (for hand-drivin g.)
• the paddles 6 are mounted between these two chains by means of a pin 7 on each side of the paddle.
• a track 10 to guide the paddles is mounted between the chains in a position eccentric to the shafts of the sprocket-wheel.
• This track consists of an endless rail of double T form.
• the paddles have on one narrow side a notch 8, bearing at its outer ends two pins ending in buttons 9 9, fitting in the bearings on both sides of the guiding-rail 10.
• the water-line may be supposed to coincide with the lower part of the guiding-rail, so that the paddles in traveling through the water are totally immersed.
• the eccentric p0- sition of the guiding-rail allows the paddles to be drawn through the water in an upright position, thus utilizing the whole of their surface for pressure.
• the dles on being drawn out of the water in an upright position would act as brakes for the time of their ascending vertically.
• the paddles are forced to pass from the vertical through the horizontal into a slightly-inclined position.
• the skilled rower does not dip the blade of this oar into the water' in a vertical position, as through the forward motion of the boat the oar-blade would act as a brake during the time of its vertically entering the water; but through dipping it in in a nearly horizontal position not only the brake action is avoided, but also a vertical pressure upon the water is exercised, which causes the bow of the boat to rise a little, thus diminishing the resistance offered to the water.

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• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Platform Screen Doors And Railroad Systems (AREA)

Description

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

Family

ID=2710251

Family Applications (1)

Country Status (1)

Cited By (1)

• 1899
  • 1899-08-08 US US72653499A patent/US641668A/en not_active Expired - Lifetime

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