US37795A - Improvement in steam-boilers - Google Patents
Improvement in steam-boilers Download PDFInfo
- Publication number
- US37795A US37795A US37795DA US37795A US 37795 A US37795 A US 37795A US 37795D A US37795D A US 37795DA US 37795 A US37795 A US 37795A
- Authority
- US
- United States
- Prior art keywords
- steam
- boilers
- hooks
- yielding
- improvement
- 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
- 238000004880 explosion Methods 0.000 description 10
- 206010040003 Sensation of pressure Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 230000000717 retained Effects 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7904—Reciprocating valves
- Y10T137/7922—Spring biased
- Y10T137/7929—Spring coaxial with valve
- Y10T137/7932—Valve stem extends through fixed spring abutment
- Y10T137/7933—Yoke or cage-type support for valve stem
Definitions
- the object of my invention is to prevent the explosion of steam-boilers owing to excessive pressure from any cause.
- the device commonly called a safety-valve which is applied to steam-boilers to equalize the press ure by permitting a gradual escape of steam when the pressure rises above any point at which the valve may be set, is entirely ineffectual to prevent the disastrous effects resulting from a large and sudden increase of pressure from accidental eailses. This is sufficiently proved by the well-known fact that explosions are of frequent occurrence, notwithstanding the so-called safety-valve is in universal use. 4
- my invention consists in constructing a steamboiler with a certain known portion of its shell or exterior more yielding than the remainder, such yielding portion being of sufficient area to carry off any excessive pressure which can possibly arise, and being, moreover, under such control as'to prevent any disastrous consequences resulting from an explosion.
- A may represent a steamboiler of any form.
- said cupola is formed with a seat, 0, in which rests a yielding head, D, constituting a valve of large area.
- This yielding head is secured against displacement by wings E, extending from its lower surface down into the cupola, and by a guiderod, F, projecting from its upper surface and working through a yoke, G.
- H is a spiral spring, encircling the rod F between the yoke G and head D, and exerting a downward pressure upon the latter.
- I I I I I are a series of levers, fulcrumed at one end to standards J J J J and at their other ends held down by hooks K K K K which hooks are held at their lower ends by springs l in cylinders L.
- the efi'ect of this device is to hold the hooks down with considerable force, but permit them a limited vertical play.
- the said hooks work through guides M M M M, within which they have a slight horizontal play in a direction parallel with the levers I l I I.
- V represents an ordinary safety-valve.
- the operation is as follows:
- the safety-valve V will perform its customary function of permitting a gradual escape of steam in order to carry off excessive pressure arising from ordinary circumstances. So long as the boiler continues to work as intended, the yielding head remains closed and inactive, but in the event of a sudden increase of p1 essure from any accidental cause, which with a boiler of common construction would resultin its explosion and destruction, the head D, being the most yielding part, will rise from its seat, and the hooks K K? K K being, by the action of the inclined projections 70 k k In, thrown off the ends of the levers, the latter release the head, which rises and permits a free escape of steam. This position of the parts is shown in Fig. 2. The excessive pressul ebeingthus carried off, the yielding head is again forceddown leased when raised from its seat, and thus prevent disastrous consequences from an explosion.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Description
UNITED STATES PATENT OFFICE.
SAMUEL STEINllIETZ, OF CHICAGO, ILLINOIS, ASSIGNOR TO ANDRE RIERSEN, OF SAME PLACE.
IMPROVEMENT IN STEAM-BOILERS.
Specification forming part of Letters Patent No. 37,795, dated February 24, 1863.
To all whom it may concern:
Be it known that I, SAMUEL STEINMETZ, of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Steam-Boilers; and I do hereby declare the following to be a full and exact description of the same, reference being had to the accompanying drawings, making part of this specification, in which- Figure l is a side elevation of a portion of a steam boiler illustrating my invention. Fig. 2 is a similar view, representing the yielding head elevated from its seat, a portion of the cupola being broken away to expose the interior. Fig. 3 is a plan of the same in its closed position.
Similar letters of reference indicate corresponding parts in the several views.
The object of my invention is to prevent the explosion of steam-boilers owing to excessive pressure from any cause. The device commonly called a safety-valve, which is applied to steam-boilers to equalize the press ure by permitting a gradual escape of steam when the pressure rises above any point at which the valve may be set, is entirely ineffectual to prevent the disastrous effects resulting from a large and sudden increase of pressure from accidental eailses. This is sufficiently proved by the well-known fact that explosions are of frequent occurrence, notwithstanding the so-called safety-valve is in universal use. 4
In order to prevent the possibility of explosion by increase of steam-pressure, however great or sudden such increase may be, my invention consists in constructing a steamboiler with a certain known portion of its shell or exterior more yielding than the remainder, such yielding portion being of sufficient area to carry off any excessive pressure which can possibly arise, and being, moreover, under such control as'to prevent any disastrous consequences resulting from an explosion.
To enable others skilled in the art to which my invention appertains to fully understand and use the same, I will proceed to describe its nature and operation.
A may represent a steamboiler of any form.
Bis acupola or steam-drum,forming a steamchamber in the upper part of the boiler. The
said cupola is formed with a seat, 0, in which rests a yielding head, D, constituting a valve of large area. This yielding head is secured against displacement by wings E, extending from its lower surface down into the cupola, and by a guiderod, F, projecting from its upper surface and working through a yoke, G.
H is a spiral spring, encircling the rod F between the yoke G and head D, and exerting a downward pressure upon the latter.
I I I I are a series of levers, fulcrumed at one end to standards J J J J and at their other ends held down by hooks K K K K which hooks are held at their lower ends by springs l in cylinders L. The efi'ect of this device is to hold the hooks down with considerable force, but permit them a limited vertical play. The said hooks work through guides M M M M, within which they have a slight horizontal play in a direction parallel with the levers I l I I.
k k k k are inclined projections on the inner edges or faces of the hooks, which projections bearing against the guides throw the hooks outward, so as to detach them from the end of the levers and release the latter when the hooks are drawn upward, as hereinafter explained. The posts N, projecting from the levers I I I I, bear upon the yielding head D, so as to hold it forcibly down so long as the levers are retained by the hooks, as shown in Fig. 1.
V represents an ordinary safety-valve.
The operation is as follows: The safety-valve V will perform its customary function of permitting a gradual escape of steam in order to carry off excessive pressure arising from ordinary circumstances. So long as the boiler continues to work as intended, the yielding head remains closed and inactive, but in the event of a sudden increase of p1 essure from any accidental cause, which with a boiler of common construction would resultin its explosion and destruction, the head D, being the most yielding part, will rise from its seat, and the hooks K K? K K being, by the action of the inclined projections 70 k k In, thrown off the ends of the levers, the latter release the head, which rises and permits a free escape of steam. This position of the parts is shown in Fig. 2. The excessive pressul ebeingthus carried off, the yielding head is again forceddown leased when raised from its seat, and thus prevent disastrous consequences from an explosion.
2. The combination of the yielding head D, levers I I I I, springhooks J J J 'J*, and return ing-spring H, all constructed, arranged, and operating substantially as herein shown and described.
SAMUEL STEINMETZ.
Witnesses JULIUS ROSENTHAL, WILLIAM ESOHENBURG.
Publications (1)
Publication Number | Publication Date |
---|---|
US37795A true US37795A (en) | 1863-02-24 |
Family
ID=2107370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US37795D Expired - Lifetime US37795A (en) | Improvement in steam-boilers |
Country Status (1)
Country | Link |
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US (1) | US37795A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2633867A (en) * | 1944-10-02 | 1953-04-07 | Nat Pressure Cooker Co | Pressure indicating and relief vale |
US20040025954A1 (en) * | 2001-09-13 | 2004-02-12 | Smith Christopher W. | Polybutylene terephthalate and polybutylene Naphthalate tubular structures |
WO2012027566A2 (en) | 2010-08-25 | 2012-03-01 | Tyrx, Inc. | Novel medical device coatings |
-
0
- US US37795D patent/US37795A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2633867A (en) * | 1944-10-02 | 1953-04-07 | Nat Pressure Cooker Co | Pressure indicating and relief vale |
US20040025954A1 (en) * | 2001-09-13 | 2004-02-12 | Smith Christopher W. | Polybutylene terephthalate and polybutylene Naphthalate tubular structures |
WO2012027566A2 (en) | 2010-08-25 | 2012-03-01 | Tyrx, Inc. | Novel medical device coatings |
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