US23117A - Scbew-pbopeller - Google Patents
Scbew-pbopeller Download PDFInfo
- Publication number
- US23117A US23117A US23117DA US23117A US 23117 A US23117 A US 23117A US 23117D A US23117D A US 23117DA US 23117 A US23117 A US 23117A
- Authority
- US
- United States
- Prior art keywords
- blades
- scbew
- pbopeller
- hub
- notches
- 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
Links
- 238000010276 construction Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 1
Images
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
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
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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
- 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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
- Y02E10/70—Wind energy
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Definitions
- My said invention consists in hanging the blades to the shaft by means of a double hub, or hub made in two parts as herein after described with diagonal notches in the boss in which notches the blades are secu/red as more fully set forth below.
- Figure l is a side elevation of my improved propeller.
- F ig. 2 is an end elevation.
- A is the shaft, which is made and hung as usual.
- the mode of constructing, hanging, and operating it is well known to all ship and engine builders, and require no description in this connection or representation in the drawings.
- the parts B are attached to the shaft in y such positions as to give the right lead to the bucket, and at the same time make the notches correspond in direction and position.
- the blades can be easily taken out and new ones put in, should it be necessary, by driving out the pins cl, and driving the blades out endwise.
- the particular improvement which constitutes my said invention and which I claim as having been originally and first invented by me is-
- the hub B B made in two disks with spiral or inclined slots to receive the floats, when the ioats are removably secured to rthe hub in the manner described/andV the whole being constructed substantially as and for the purpose set forth.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
- Toys (AREA)
Description
.MII
UNITED sTATEs PATENT oFFicE.
GEORGE E. SAFFORD, OF NEW YORK, N. Y.
SCREW-PROPEILLER.
Specification of Letters Patent No. 28,117, dated March 1, 1859'.
To all 'whom t may concern:
Be it known that I, GEORGE E. SAFFORD, of New York, in the county of New York and State of New York, have invented an Improvement in Propellers, the construction and operation of which I have described in the following specification and illustrated in its accompanying drawings with suflicient clearness to enable competent and skilful workmen in the arts to which it pertains or is most nearly allied to make and use my invention.
My said invention consists in hanging the blades to the shaft by means of a double hub, or hub made in two parts as herein after described with diagonal notches in the boss in which notches the blades are secu/red as more fully set forth below.
Figure l is a side elevation of my improved propeller. F ig. 2 is an end elevation.
A is the shaft, which is made and hung as usual. The mode of constructing, hanging, and operating it is well known to all ship and engine builders, and require no description in this connection or representation in the drawings.
B are the parts which constitute the hub of the wheel. `These are nearly disks, but have lugs or projections b upon them, between which are notches or slots for the reception of the blades C. These notches should properly be made dovetailing so as to hold the blades should one of the pinsfl work loose or break. These pins pass through the lugs b and through the blades C to secure the latter in place. The blades are made nearly or quite flat, of the proper size and form to answer the purpose for which they are intended. Their' form, as I have thought best to construct them, is fully and clearly shown in the drawings.
The parts B are attached to the shaft in y such positions as to give the right lead to the bucket, and at the same time make the notches correspond in direction and position.
By this construction I secure the blades very lirmly in position, and support them in a much more substantial manner than is done by the old mode of casting the wheel whole or securing the blades by bolting them upon projecting arms; and for propellers of light dip the blades operate more freelyT than in the old construction.
The blades can be easily taken out and new ones put in, should it be necessary, by driving out the pins cl, and driving the blades out endwise.
By this constructionlightness and strength are very happily combined and the facility with which the blades may be removed and replaced make the wheel an easy one to keep 1n repair.
It is obvious that a larger number of blades may be used should it be desired, but I consider three the most economical number for a stern propeller. In a side propeller it may be desirable to use four or five or even more.
The particular improvement which constitutes my said invention and which I claim as having been originally and first invented by me is- The hub B B made in two disks with spiral or inclined slots to receive the floats, when the ioats are removably secured to rthe hub in the manner described/andV the whole being constructed substantially as and for the purpose set forth.
G. E. SAFFORD. Witnesses:
H. W. BOARDMAN, Trios. B. I-Iow.
Publications (1)
Publication Number | Publication Date |
---|---|
US23117A true US23117A (en) | 1859-03-01 |
Family
ID=2090181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US23117D Expired - Lifetime US23117A (en) | Scbew-pbopeller |
Country Status (1)
Country | Link |
---|---|
US (1) | US23117A (en) |
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0
- US US23117D patent/US23117A/en not_active Expired - Lifetime
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