US17607A - miller and j - Google Patents
miller and j Download PDFInfo
- Publication number
- US17607A US17607A US17607DA US17607A US 17607 A US17607 A US 17607A US 17607D A US17607D A US 17607DA US 17607 A US17607 A US 17607A
- Authority
- US
- United States
- Prior art keywords
- mercury
- steam
- tube
- bell shaped
- miller
- 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
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 42
- 229910052753 mercury Inorganic materials 0.000 description 42
- 240000002027 Ficus elastica Species 0.000 description 12
- 229920001195 polyisoprene Polymers 0.000 description 12
- 241001473780 Sideroxylon lanuginosum Species 0.000 description 10
- 239000011521 glass Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 230000036633 rest Effects 0.000 description 4
- 229920000591 gum Polymers 0.000 description 2
- 230000003137 locomotive Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
Definitions
- Figure l is a view of the gage; Fig. 2 vertical section of the same; and Figs. 3, 4, and 5 are sectional views 0f parts detached.
- A, A is an ordinary case, inclosing the mercury tube.
- B the index plate, C, a piece of wood to which the index plate is secured, c, a glass cylinder which incloses the piece O, the index plate, and a part of the mercury tube, and which rests upon a proj cction in the piece O.
- D the mercury tube, d, the bell shaped end of the mercury tube.
- E a circular piece of india rubber, or gum elastic, the edge of which fits closely upon the lower edge of the bell shaped end d, of the mercury tube, as seen in Fig. 2. This india rubber plate is also seen in section in Fig. 4.
- F the metalic bulb which contains the end of the mercury tube, and which screws in the case A, as seen at a, a.
- G a stratum of plaster which is run in between the glass and the casing, and which enables the bell shaped end of the mercury tube to sustain the high pressure to which it is subject.
- H the metallic bulb which forms the air and steam chamber, I, under the gum elastic plate E, and which is attached to the steam pipe by the screw J, and which'also screws into the bulb F, as seen at P, Figs. 2 and 5.
- K the passage through which steam is admitted.
- the end d, of the mercury tube being bell shaped, or concave, it forms a chamber for the mercury g the india rubber E, forming a floor for the chamber.
- the metallic bulb H screws into the bulb F, it presses the india rubber firmly up against the edge of the bell shaped end of the mercury tube, thus making the mercury chamber L, perfectly tight, excluding air and steam.
- the mercury is in the bottom of the tube D, and rests upon the india rubber plate, and when the pressure of steam forces the air and steam from the boiler, it passes through the pipe K, into the chamber I, and presses against the india rubber or gum elastic and causes it to assume a more or less concave form, according to the pressure of the steam, thus forcing the mercury upward in the mercury tube, to a greater or less height, the same being indicated by the index plate, thus showing the pressure of the steam.
- Above the mercury in the tube D is a small portion of liquid, above which last is compressed air. The liquid is for the purpose of preventing oxidation of the mercury.
- the gum elastic plate protects the mercury from air and steam, and consequently from all derangement, no matter in what position the gage may be thrown.
- the gum is also impenetrable to mercury under a high pressure.
- Fig. 3 shows a section of the mercury tube, with its bell shaped end, d.
- This gage is applicable to both stationary and locomotive engines.
Description
UNITED STATES PATENT OFFIOE.
J. H. MILLER AND J. KAILEY, OF CANTON, OHIO, ASSIGNORS TO THEMSELVES AND JOHN i BANNER.
STEAM-PRESSURE GAGE.
Specification of Letters Patent No. 17,607, dated June 16, 1857.
To all whom it may concern:
Be it known that we, Jos. H. MILLER and JOHN KAILEY, of Canton, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Mercurial Steam-Gages; and we do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying drawings and to the letters of reference marked thereon.
Figure l is a view of the gage; Fig. 2 vertical section of the same; and Figs. 3, 4, and 5 are sectional views 0f parts detached.
Like letters refer to like parts in the different views.
A, A, is an ordinary case, inclosing the mercury tube. B, the index plate, C, a piece of wood to which the index plate is secured, c, a glass cylinder which incloses the piece O, the index plate, and a part of the mercury tube, and which rests upon a proj cction in the piece O. D the mercury tube, d, the bell shaped end of the mercury tube. E, a circular piece of india rubber, or gum elastic, the edge of which fits closely upon the lower edge of the bell shaped end d, of the mercury tube, as seen in Fig. 2. This india rubber plate is also seen in section in Fig. 4. F, the metalic bulb which contains the end of the mercury tube, and which screws in the case A, as seen at a, a. G, a stratum of plaster which is run in between the glass and the casing, and which enables the bell shaped end of the mercury tube to sustain the high pressure to which it is subject. H, the metallic bulb which forms the air and steam chamber, I, under the gum elastic plate E, and which is attached to the steam pipe by the screw J, and which'also screws into the bulb F, as seen at P, Figs. 2 and 5. K, the passage through which steam is admitted.
The end d, of the mercury tube, being bell shaped, or concave, it forms a chamber for the mercury g the india rubber E, forming a floor for the chamber. As the metallic bulb H, screws into the bulb F, it presses the india rubber firmly up against the edge of the bell shaped end of the mercury tube, thus making the mercury chamber L, perfectly tight, excluding air and steam. The mercury is in the bottom of the tube D, and rests upon the india rubber plate, and when the pressure of steam forces the air and steam from the boiler, it passes through the pipe K, into the chamber I, and presses against the india rubber or gum elastic and causes it to assume a more or less concave form, according to the pressure of the steam, thus forcing the mercury upward in the mercury tube, to a greater or less height, the same being indicated by the index plate, thus showing the pressure of the steam. Above the mercury in the tube D is a small portion of liquid, above which last is compressed air. The liquid is for the purpose of preventing oxidation of the mercury.
The gum elastic plate protects the mercury from air and steam, and consequently from all derangement, no matter in what position the gage may be thrown. The gum is also impenetrable to mercury under a high pressure.
Fig. 3 shows a section of the mercury tube, with its bell shaped end, d.
This gage is applicable to both stationary and locomotive engines.
What we claim as our invention, and desire to secure by Letters Patent, is-
The bell shaped end of the mercury tube d, and the manner of fastening the gum elastic floor to the bottom of said bell shaped tube d, by being clamped between the glass d, d, and the metal P, I), thus securely protecting the mercury from air, steam and Water; this we claim` when arranged and combined, subtantially as set forth, for the purpose speci- JOS. H. MILLER. JOHN KAILEY.
Witnesses THOMAS GOODMAN, PERKINS WALLACE.
Publications (1)
Publication Number | Publication Date |
---|---|
US17607A true US17607A (en) | 1857-06-16 |
Family
ID=2080217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17607D Expired - Lifetime US17607A (en) | miller and j |
Country Status (1)
Country | Link |
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US (1) | US17607A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4134304A (en) * | 1977-07-12 | 1979-01-16 | Tadayoshi Yamamoto | Air pressure transducer of diffusion type |
US4314480A (en) * | 1980-07-14 | 1982-02-09 | Baxter Travenol Laboratories, Inc. | Venous pressure isolator |
US4550459A (en) * | 1982-05-28 | 1985-11-05 | Ibu Betten-Union Gmbh & Co. Kg | Orthopedic pillow |
-
0
- US US17607D patent/US17607A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4134304A (en) * | 1977-07-12 | 1979-01-16 | Tadayoshi Yamamoto | Air pressure transducer of diffusion type |
US4314480A (en) * | 1980-07-14 | 1982-02-09 | Baxter Travenol Laboratories, Inc. | Venous pressure isolator |
US4550459A (en) * | 1982-05-28 | 1985-11-05 | Ibu Betten-Union Gmbh & Co. Kg | Orthopedic pillow |
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