US89471A - Improvement in steam-engine valves - Google Patents
Improvement in steam-engine valves Download PDFInfo
- Publication number
- US89471A US89471A US89471DA US89471A US 89471 A US89471 A US 89471A US 89471D A US89471D A US 89471DA US 89471 A US89471 A US 89471A
- Authority
- US
- United States
- Prior art keywords
- steam
- valve
- improvement
- engine valves
- engine
- 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 6
- 210000000088 Lip Anatomy 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 235000017274 Diospyros sandwicensis Nutrition 0.000 description 2
- 241000282838 Lama Species 0.000 description 2
- 241000700159 Rattus Species 0.000 description 2
- 210000003660 Reticulum Anatomy 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000003292 diminished Effects 0.000 description 2
- 230000003137 locomotive Effects 0.000 description 2
- 101700082413 tant Proteins 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/007—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests for contrast media
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0235—Valves specially adapted therefor
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/877—With flow control means for branched passages
- Y10T137/87829—Biased valve
Definitions
- the invention consists in a novel construction of such valve, whereby, while the steam is first admitted to it from below, the same is allowed, through the agency of independent valves carried by such main valve, to act in a secondary manner upon the top of the valve, and whereby numerous advantages are obtained.
- valve which is of a partially circular character, so as to lie on one side only of the shaft B, which rocks it, through drivers a a, arranged to gear with projections b on the inside of the valve, that is grooved orcut away on its outside face to form steameavities, c c, an intermediate exhaust-cavity, al, and lips or bearing-surfaces e e and f f.
- C is a partial cylinder, forming an upper bonnet to the valve that rocks or works in close contact therein, and serving to establish, in connection with an outer cylinder or chamber, D, branches g g, for the steam from the boiler, which enters at h.
- This construction dispenses with a steam-chest to the valve and causes the steam to be branched direct from the boiler to the under side of the valve, entering alternately the cavities c c, as they are brought by the rocking-movement of the valve, in communication with the lower open ends to said branches g g, the lips e e being arranged to control both the branches g g and the ports orpassages 'l i to the opposite ends of the engine-cylinder, and, so far as establishing communication of the latter passages with the exhaust, controlling the exhaust-passage or outlet k.
- Either steam-cavity c c portion of the valve is provided with a puppet-valve, 'm m, arranged to open inward, so as to admit steam to the 'top or lback of the valve, in a secondary manner, as itwere, that is, after its admission, to act upon the valve from below.
- valve The general action of the valve is similar to that ofother valves, so far as opening either port i1'. alternately to pass and exhaust steam to and from the engine-cylinder, but by the special construction hereshown, not only is a steam-chest dispensed with, but
- valve balanced in a measure and restrained from.
- Said valve having a diminished boiler-pressure above it, moves with very little friction.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Vascular Medicine (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ophthalmology & Optometry (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Physiology (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Control Of Turbines (AREA)
Description
tant @aient l @fil CHARLES DAWSON, OF LANE SBOROUGI-I, PENNSYLVANIA.
Letters Patent No. 89,471, dated April 27, 1869.
IMPROVEMENT IN STEAM-ENGINE VALVES.
The Schedule referred to in these Letters Patent and making part of the lama.
To all whom it may' conce/m:
Be it known that I, CHARLES DAWSON, of Lanesborough, in the county of Susquehanna, and State of' Pennsylvania, have invented a new and useful Improvement in Steam-Valves, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing,`forming part of this specication, and in which- Figures 1 and 2 represent sectional elevations rat right angles to each other of my improved steam-valve as arranged in connection with the ports or passages of an engine-cylinder.
Similar letters of reference indicate corresponding parts.
This, my improvement, which I designate a compensation balance-valve, and which is applicable to locomotive and other engines, relates to valves of a partially ci'rcular character, having a rocking-movement; and
The invention consists in a novel construction of such valve, whereby, while the steam is first admitted to it from below, the same is allowed, through the agency of independent valves carried by such main valve, to act in a secondary manner upon the top of the valve, and whereby numerous advantages are obtained.
Referring to the accompanying drawing- A is' the valve, which is of a partially circular character, so as to lie on one side only of the shaft B, which rocks it, through drivers a a, arranged to gear with projections b on the inside of the valve, that is grooved orcut away on its outside face to form steameavities, c c, an intermediate exhaust-cavity, al, and lips or bearing-surfaces e e and f f.
C is a partial cylinder, forming an upper bonnet to the valve that rocks or works in close contact therein, and serving to establish, in connection with an outer cylinder or chamber, D, branches g g, for the steam from the boiler, which enters at h.
This construction dispenses with a steam-chest to the valve and causes the steam to be branched direct from the boiler to the under side of the valve, entering alternately the cavities c c, as they are brought by the rocking-movement of the valve, in communication with the lower open ends to said branches g g, the lips e e being arranged to control both the branches g g and the ports orpassages 'l i to the opposite ends of the engine-cylinder, and, so far as establishing communication of the latter passages with the exhaust, controlling the exhaust-passage or outlet k.
Either steam-cavity c c portion of the valve is provided with a puppet-valve, 'm m, arranged to open inward, so as to admit steam to the 'top or lback of the valve, in a secondary manner, as itwere, that is, after its admission, to act upon the valve from below.
The general action of the valve is similar to that ofother valves, so far as opening either port i1'. alternately to pass and exhaust steam to and from the engine-cylinder, but by the special construction hereshown, not only is a steam-chest dispensed with, but
the valve balanced in a measure and restrained from.
cutting its own face by reason of the steam being admitted to act with full boiler-pressure under the valve 4with a condensed steam or water-pressure above by the occasional passage of steam through the puppetvalves m m, which close to prevent egress of water, or condensed steam.
Said valve having a diminished boiler-pressure above it, moves with very little friction.
As compared with an ordinary slide-valve, there will be found great saving of power, also of' wear, on all the connections, rocker-shafts, links and link-blocks, eccentrics and eccentric-straps, making the engine far more easy to work or control.
What is here claimed, and desired to be secured by- OHAS. DAWSON. Witnesses:
N. R. COMFORT, A. G. BRUSH.
Publications (1)
Publication Number | Publication Date |
---|---|
US89471A true US89471A (en) | 1869-04-27 |
Family
ID=2158952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US89471D Expired - Lifetime US89471A (en) | Improvement in steam-engine valves |
Country Status (1)
Country | Link |
---|---|
US (1) | US89471A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2839033A (en) * | 1954-11-19 | 1958-06-17 | Ford Motor Co | Power transmission mechanisms for hydraulically propelled vehicles |
US5747105A (en) * | 1996-04-30 | 1998-05-05 | Owens Corning Fiberglas Technology Inc. | Traversing nozzle for applying granules to an asphalt coated sheet |
US5776541A (en) * | 1996-12-30 | 1998-07-07 | Owens-Corning Fiberglas Technology | Method and apparatus for forming an irregular pattern of granules on an asphalt coated sheet |
-
0
- US US89471D patent/US89471A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2839033A (en) * | 1954-11-19 | 1958-06-17 | Ford Motor Co | Power transmission mechanisms for hydraulically propelled vehicles |
US5747105A (en) * | 1996-04-30 | 1998-05-05 | Owens Corning Fiberglas Technology Inc. | Traversing nozzle for applying granules to an asphalt coated sheet |
US5776541A (en) * | 1996-12-30 | 1998-07-07 | Owens-Corning Fiberglas Technology | Method and apparatus for forming an irregular pattern of granules on an asphalt coated sheet |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US89471A (en) | Improvement in steam-engine valves | |
US69772A (en) | Jambs colbath | |
US94316A (en) | Improvement in steam-engine valve-gear | |
US54163A (en) | Improvement in slide-valves | |
US78556A (en) | Improvement in valves and steam-passages | |
US102367A (en) | William brown | |
US54090A (en) | Improvement in cut-off valves | |
US77152A (en) | William wilson | |
US80698A (en) | wilford | |
US84054A (en) | Improvement in steam-engine slide-valttes | |
US87448A (en) | Improvement in steam-engine valve-gearing | |
US85105A (en) | Improvement in steamt-eng-ine slide-valves | |
US105986A (en) | Improvement in valves for steam-engines | |
US81168A (en) | Improvement in direct-acting engines | |
US92231A (en) | Improvement in balance piston-valves for steam-engines | |
US56946A (en) | Improvement in steam-engine valves | |
US50320A (en) | Improvement in cut-off valves | |
US45820A (en) | Improvement in valves for steam-engines | |
US323410A (en) | Piston-valve | |
US189400A (en) | Improvement in circular valves for steam-engines | |
US85572A (en) | Improvement in toy steam-engines | |
US58074A (en) | Improvement in valve-gears for steam-engines | |
US588533A (en) | Territory | |
US92630A (en) | Improvement in balanced cylindrical slide-valve | |
US195005A (en) | Improvement in balanced slide-valves |