US166498A - Improvement in screw-propellers - Google Patents
Improvement in screw-propellers Download PDFInfo
- Publication number
- US166498A US166498A US166498DA US166498A US 166498 A US166498 A US 166498A US 166498D A US166498D A US 166498DA US 166498 A US166498 A US 166498A
- Authority
- US
- United States
- Prior art keywords
- screw
- propellers
- improvement
- gary
- blades
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000037250 Clearance Effects 0.000 description 2
- 230000035512 clearance Effects 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/04—Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive 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
- Y02E10/20—Hydro energy
Definitions
- Figure 1 is a side elevation of our improved propeller with a part in section.
- Fig. 2 is a section taken on the line 00 :17.
- Fig. 3 is a section on line y y, and
- Fig. 4 is a section on line z 2.
- A represents the blades, which are in length equal to about half the radius of the wheel, and of uniform breadth, being connected at the inner end to the short arms B, and at the outer end to the guard-ring 0. They are molded in concave form at the inner end on the side acting against the water, and for made water-tight to make the ring buoyantthe short blades and small attaching arms improves the efficiency of the wheel by the greater clearance afforded for the water, which does not give beneficial results on the center portion of the blades when they extend thereto.
- This protecting and buoying ring is applicable to wheels of any form, and may be applied readily to those in use.
- the protecting-rim constructed of the flat band D, oval or half-round band E, and the stiffening-rim F, substantially as specified.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Wind Motors (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
L. G. & G. F. CARY.
Screw-Propellers.
N0.166,498. Patented'Aug .10,I875.
WITNESSES 4 INVENTDB Hb I BY. m 3.91101 I V ATTOBN UNITED STATES PATENT OFFICE.
LEWIS O. GARY AND GEORGE F. GARY, OF PORTLAND, MAINE.
IMPRO VEMENT IN SCREW-PROPELLERS.
Specification forming part of Letters Patent No. 166,498, dated August 10, 1875; application filed May 1, 1875.
To all whom it may concern:
Be it known that we, LEWIS CLARK GARY and GEORGE FRANCIS GARY, of Portland, in the county of Cumberland and State of Maine, have invented a new and Improved Screw- Propeller, of which the following is a specification:
The invention will first be described in connection with drawing, and then pointed out in the claims.
Figure 1 is a side elevation of our improved propeller with a part in section. Fig. 2 is a section taken on the line 00 :17. Fig. 3 is a section on line y y, and Fig. 4 is a section on line z 2.
Similar letters of reference indicate corresponding parts. I
A represents the blades, which are in length equal to about half the radius of the wheel, and of uniform breadth, being connected at the inner end to the short arms B, and at the outer end to the guard-ring 0. They are molded in concave form at the inner end on the side acting against the water, and for made water-tight to make the ring buoyantthe short blades and small attaching arms improves the efficiency of the wheel by the greater clearance afforded for the water, which does not give beneficial results on the center portion of the blades when they extend thereto. This protecting and buoying ring is applicable to wheels of any form, and may be applied readily to those in use.
Havingthus described our invention, we claim as new and desire to secure by Letters Patent-- 1. The combination of a hollow water-tight protecting-rim with the blades of a propeller,
substantially as specified.
2. The protecting-rim, constructed of the flat band D, oval or half-round band E, and the stiffening-rim F, substantially as specified.
LEWIS O. GARY. GEORGE F. GARY.
Witnesses:
'JoNAH H. DRUMMOND, CHARLES L. DRUMMOND.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US166498A true US166498A (en) | 1875-08-10 |
Family
ID=2235907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US166498D Expired - Lifetime US166498A (en) | Improvement in screw-propellers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US166498A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5044884A (en) * | 1989-09-05 | 1991-09-03 | Trustees Of The University Of Pennsylvania | Safety propeller |
-
0
- US US166498D patent/US166498A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5044884A (en) * | 1989-09-05 | 1991-09-03 | Trustees Of The University Of Pennsylvania | Safety propeller |
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