US23507A - Improvement in side-wheel steamers - Google Patents
Improvement in side-wheel steamers Download PDFInfo
- Publication number
- US23507A US23507A US23507DA US23507A US 23507 A US23507 A US 23507A US 23507D A US23507D A US 23507DA US 23507 A US23507 A US 23507A
- Authority
- US
- United States
- Prior art keywords
- wheel
- improvement
- guard
- steamers
- guards
- 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 10
- 238000010276 construction Methods 0.000 description 6
- 241000272168 Laridae Species 0.000 description 4
- 230000003028 elevating Effects 0.000 description 4
- 229940092727 Claro Drugs 0.000 description 2
- 240000001973 Ficus microcarpa Species 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 230000000979 retarding 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
Definitions
- Figure l is a plan View of the main deck of a steamer.
- Fig.y 2 is a broadside view of the hull, zito., of a steamer, showing position of water-wheel beams.
- Fig. 3 is a section on line x a, Fig. l.
- Fig. 4 is a cross-section on line y y, Fig. l.
- guards projects from beyond the line of the hull both forward and abaft of the wheels, and in many descriptions of steamers these guards extend from the bow to the stern in one unbroken line at the outer edge.
- These guards are supported either by the deck-timbers or by timbers placed at the same level, which pass through the side of the hull and extend beyond the distance required to give the guards the proper width at different points.
- Those beams next adjacent to the wheel on either side are made of large size, and support the ends ot' the outer pillow-block beam for the support of the wheelshaft, and the pillow-block beams thus form a continuation of the guards around the wheel-house, connecting the forward and after guards with each other.
- the object of my improvement in steamboats is to remove this retardinginfluence on the velocity of the boat.
- My invention for eecting this object consists in dividing the after-guard and elevating a section of the same next adjacent to the Wheel, so that the guard will be without the inuence of the water raised and the back current produced by the motion of the wheel.
- I-I represents the hull of the boat; D, the deck; NV W, the Wheels; A, the forward guard, extending from the wheel to the bow; A A, the after-guard, extending from the stern to the wheel, the part A being raised a sufficient height to be without the influence of the water raised and the current produced by the motion of the wheel, thus leaving a clear water-space abaft the wheel for the escape of the current produced by the motion of the wheel without striking the guardbeams, (Z9, the guard-beams, which are a prolongation of the deck-beams 15,) the beams of the elevated portion of the after-guard, which pass through the boat above the deck-timbers and hull and give support to after end of pillow-block beam B.
- the forward end of 4this beam B rests upon blocks supported by the forward-guard timbers.
- Thus a iirm support is given to the outer end of the main shaft S of the wheel.
Description
.FErERS, PHOTGYUTHOGRAPNER, WASHINGTON, D. a
UNITED STATES PATENT EEICE.
ALEXANDER MCDONALD SPRAGUE, OF MOBILE, ALABAMA.
IMPROVEMENT IN SIDE-WHEEL STEAMERS.
Specification forming part of Letters Patent No. 23,507, dated April 5, 1859.
To all whom, it may concern:
Beit known that I, ALEXANDER McDoNALD SPRAGUE, of Mobile, in the county of Mobile and Siate ot' Alabama, have invented a new and useful Improvement in the Construction ot" Side-Wheel Steamers; and I do hereby de claro that the following is a full, clear, and exact description of the same, reference being had to' the annexed drawings, forming part of this specification, in the several figures of which similar characters of reference denote the same parts.
Figure l is a plan View of the main deck of a steamer. Fig.y 2 is a broadside view of the hull, zito., of a steamer, showing position of water-wheel beams. Fig. 3 is a section on line x a, Fig. l. Fig. 4 is a cross-section on line y y, Fig. l.
In all descriptions of side-wheel Steamers a platform termed the guards projects from beyond the line of the hull both forward and abaft of the wheels, and in many descriptions of steamers these guards extend from the bow to the stern in one unbroken line at the outer edge. These guards are supported either by the deck-timbers or by timbers placed at the same level, which pass through the side of the hull and extend beyond the distance required to give the guards the proper width at different points. Those beams next adjacent to the wheel on either side are made of large size, and support the ends ot' the outer pillow-block beam for the support of the wheelshaft, and the pillow-block beams thus form a continuation of the guards around the wheel-house, connecting the forward and after guards with each other.
From the arrangement of the guards it will be readily perceived that in low steamers, in which the guards are only a short distance above the water, the wheels when in motion raise the water and throw it with great force (increasing with the velocity of the wheel) against the after-guard, that portion of the guard immediately adjacent to and within the influence of the water thrown off by the wheel. Hence the Velocity of the boat is retarded and a heavy percentage of the power t the engine is expended in keeping the boat ack.
The object of my improvement in steamboats is to remove this retardinginfluence on the velocity of the boat.
My invention for eecting this object consists in dividing the after-guard and elevating a section of the same next adjacent to the Wheel, so that the guard will be without the inuence of the water raised and the back current produced by the motion of the wheel.
The manner in which my improvement is constructed will be readily understood by rueference to the accompanying drawings, in which the construction of a boat With my improvement applied thereto is represent-ed.
I-I represents the hull of the boat; D, the deck; NV W, the Wheels; A, the forward guard, extending from the wheel to the bow; A A, the after-guard, extending from the stern to the wheel, the part A being raised a sufficient height to be without the influence of the water raised and the current produced by the motion of the wheel, thus leaving a clear water-space abaft the wheel for the escape of the current produced by the motion of the wheel without striking the guardbeams, (Z9, the guard-beams, which are a prolongation of the deck-beams 15,) the beams of the elevated portion of the after-guard, which pass through the boat above the deck-timbers and hull and give support to after end of pillow-block beam B. The forward end of 4this beam B rests upon blocks supported by the forward-guard timbers. ,Thus a iirm support is given to the outer end of the main shaft S of the wheel.
As it will thus be seen that in breaking and elevating that part of the rear guard adjacent to the wheel above the deck the retarding influence heretofore experienced in the use of the low and continuous guards is entirely overcome, as a clear water-way is left abaft of the wheel for the free passage of the current produced by the wheel when in motion and the guard-timbers raised beyond its iniiuence.
Having thus described my improvement in the construction of steamboats, what I claim therein as new, and desire to secure by Letters Patent, is
Raising the after-guards next adjacent to the Wheel above' the deok and hull of the l signed my name before two subscribing Witboat and also above the forward guard, submesses.
stantally as described, so as to leave a clear water-way beneath the after-guard and im- ALEX' MCDONALD SPRAGUE' mediately a-baft of the Wheel, for the purpose Vtnesses: Y as set forth. JAS. D. CLARY,
In testimony whereof I have hereunto JOHN S. HOLLING'SHEAD.
Publications (1)
Publication Number | Publication Date |
---|---|
US23507A true US23507A (en) | 1859-04-05 |
Family
ID=2090886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US23507D Expired - Lifetime US23507A (en) | Improvement in side-wheel steamers |
Country Status (1)
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US (1) | US23507A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050178190A1 (en) * | 2004-02-13 | 2005-08-18 | Wollenberg Robert H. | High throughput screening methods for lubricating oil compositions |
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0
- US US23507D patent/US23507A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050178190A1 (en) * | 2004-02-13 | 2005-08-18 | Wollenberg Robert H. | High throughput screening methods for lubricating oil compositions |
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