US5224A - V sgre - Google Patents
V sgre Download PDFInfo
- Publication number
- US5224A US5224A US5224DA US5224A US 5224 A US5224 A US 5224A US 5224D A US5224D A US 5224DA US 5224 A US5224 A US 5224A
- Authority
- US
- United States
- Prior art keywords
- screw
- vessel
- propeller
- cylinder
- water
- 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 8
- 241000272168 Laridae Species 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 206010022114 Injury Diseases 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D3/00—Axial-flow pumps
- F04D3/02—Axial-flow pumps of screw type
Definitions
- my invention consists in constructing a cylinder in the dead wood or other part of the vessel; and in placing within the cylinder so constructed a second cylinder containing a screw the edges. of which are firmly secured to this second cylinder, which is thereby made to revolve with the. screw, thus forming an Archimedean screw. Also, in the manner of admitting the water to the screw or propeller by an opening in the front or outer cylinder as shown in Fig. 1. This opening is closed by a sliding valve, see Figs. 1 and 20, c.
- the opening at the back end of the cylinder may be closed in a similar manner.
- the valve 0, of the opening in front is operated within the vessel by a stem working through a stufling box.
- In the rear of the outer cylinder is an upright post or stanchion in which the journal (9) of the shaft work.
- the other end of the shaft (9) passes through a stuffing box, into the vessel where it is connected with the engine.
- an Archimedean screw being to control the centrifugal action of the water, and to exert the power of the screw in a direction longitudinal with the keel of the vessel.
- the object of the outer cylinder is to protect the inner cylinder or Archimedean screw from the injury which might otherwise arise'to it by striking the banks of a canal or river, by grounding, by fouling of the cable, and from floating ice, driftwood, or other objects.
- I locate my propeller in the dead wood of the stern of a vessel just forward of the rudder-post and above the keel, a cylindrical casing (a) being made in the vessel for its reception.
- a space (6) is left between the front end of the said case and the vessel for the admission of the water upward into it, (this is clearly shown in Figs. 1 and 2) and it can be closed by a water-tight sliding valve (0) that is opened within the vessel by a. stem (61) working through a stuffing box (6).
Description
-J.- MONTGOMERY; SUBMERGED PROPELLER.
No.'5,224. I Paten iedlugfl, 1847.
' fig/Z.
UNITED STATES PATENT OFFICE.
JAMES MONTGOMERY, OE MEMPHIS, TENNESSEE.
SGREW-PROPELLER.
Specification of Letters Patent No. 5,224, dated August 7, 1847.
To all whom it may concern:
Be it known that I, JAMEs MONTGOMERY, of Memphis, in the county of Shelby and State of Tennessee, have invented new and useful Improvements in Submerged Propellers, and that the following is a full, clear, and exact description of the principle or character which distinguishes them from all other things before, known, and of the manner of making, constructing, and using the same, reference being had to the accompanying drawings, making part of this specification, in which Figure 1 is a bottom plan; Fig. 2, a vertical section; and Fig. 3, an end view. The same letters indicate like parts in all the figures.
The nature of my invention consists in constructing a cylinder in the dead wood or other part of the vessel; and in placing within the cylinder so constructed a second cylinder containing a screw the edges. of which are firmly secured to this second cylinder, which is thereby made to revolve with the. screw, thus forming an Archimedean screw. Also, in the manner of admitting the water to the screw or propeller by an opening in the front or outer cylinder as shown in Fig. 1. This opening is closed by a sliding valve, see Figs. 1 and 20, c.
The opening at the back end of the cylinder may be closed in a similar manner. The valve 0, of the opening in frontis operated within the vessel by a stem working through a stufling box. In the rear of the outer cylinder is an upright post or stanchion in which the journal (9) of the shaft work. The other end of the shaft (9) passes through a stuffing box, into the vessel where it is connected with the engine. The object of thus using. an Archimedean screw being to control the centrifugal action of the water, and to exert the power of the screw in a direction longitudinal with the keel of the vessel. The object of the outer cylinder is to protect the inner cylinder or Archimedean screw from the injury which might otherwise arise'to it by striking the banks of a canal or river, by grounding, by fouling of the cable, and from floating ice, driftwood, or other objects.
I locate my propeller in the dead wood of the stern of a vessel just forward of the rudder-post and above the keel, a cylindrical casing (a) being made in the vessel for its reception. A space (6) is left between the front end of the said case and the vessel for the admission of the water upward into it, (this is clearly shown in Figs. 1 and 2) and it can be closed by a water-tight sliding valve (0) that is opened within the vessel by a. stem (61) working through a stuffing box (6). At the rear end of the case there is an upright post (f) in which the journals (g) of the propeller shaft (9) works, the other end of which passes through a stufling box (it) into the vessel where it is attached to the engine in any ordinary way that shall be found convenient. The wings of the propeller form an Archimedean' screw ofthree (more or less) turns, the outer edges of the thread of the screw being attached to a cylindrical tube (2') by which they are surrounded and which revolves with them within the case (a) above named which is formed in the vessel. The screw is thus protected and strengthened by two surrounding coverings, one revolving within the other, which prevents all liability-to accidents in canals, rivers, or other shallow waters. When the propeller is turned the water is made to flow in through the bottom and thence out at the stern. The outer case that is attached to thevessel can be entirely closed under the front end by thesliding valve (0) above described. I r
What I claim as my invention, and desire tofsecure by Letters Patent, is
Constructing the propeller in the manner or. a screw to which an outer rim is attached described, namely, an Archimedean screw to-strengthen it, the whole being surrounded by an additional casing which outer case jury and by which a more perfect action is insured.
JAS. MONTGOMERY.
Witnesses:
, S. O. 'DONN,
DAVID MARTIN.
Publications (1)
Publication Number | Publication Date |
---|---|
US5224A true US5224A (en) | 1847-08-07 |
Family
ID=2065525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US5224D Expired - Lifetime US5224A (en) | V sgre |
Country Status (1)
Country | Link |
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US (1) | US5224A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2655890A (en) * | 1952-05-15 | 1953-10-20 | Whipple William | Cylindroid tug |
US2704044A (en) * | 1951-10-03 | 1955-03-15 | James J Murray | Folding tow bars for vessels and damping fin for hawser |
-
0
- US US5224D patent/US5224A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2704044A (en) * | 1951-10-03 | 1955-03-15 | James J Murray | Folding tow bars for vessels and damping fin for hawser |
US2655890A (en) * | 1952-05-15 | 1953-10-20 | Whipple William | Cylindroid tug |
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