US66227A - Improvement in pressure-gauges for gas-fitters - Google Patents
Improvement in pressure-gauges for gas-fitters Download PDFInfo
- Publication number
- US66227A US66227A US66227DA US66227A US 66227 A US66227 A US 66227A US 66227D A US66227D A US 66227DA US 66227 A US66227 A US 66227A
- Authority
- US
- United States
- Prior art keywords
- pressure
- gas
- fitters
- gauges
- 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
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 12
- 229910052753 mercury Inorganic materials 0.000 description 12
- 240000002027 Ficus elastica Species 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 210000001699 lower leg Anatomy 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229920001195 polyisoprene Polymers 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 239000004429 Calibre Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000012976 tarts Nutrition 0.000 description 2
- 238000004642 transportation engineering Methods 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
- nventor gums grates 33mm @ffir z.
- My invention consists in constructing a tube wit-h an expanded base or. reservoir, thebottom of which is formed of India rubber of sufficient elasticity to allow of its displacing, when pressure is applied from below, as much mercury (with which the reservoir is filled) as will fill the tube to the top.
- the degree of pressure is indicated by the elevation of the mercury in the tube, which is provided with aglassface and a scale marked in any convenient manner.
- the base is of metal, as shown at A, Figure 1, with a chamber or reservoir, 11, with an elastic bottom, 0, and is filled with mercury.
- the socket a At the lower end is the socket a, by which the gauge is attached to the pipe to be tested.
- the top of the reservoir is formed by the shank or lower end of the tube B, and is of wood, one half of which, above 01, is cut away longitudinally, and its place supplied with a plateglass face cemented thereto, and clamped firmly by the metal case e, as shown in cross-sections Figures 2 and 3.
- Figure 4 is a view of the top and the cap Q, with a packing of India rubber on the under side, which is tightened upon the top of the tube,by means of the thumb-screw f, to prevent the loss of the mercury during transportation. .lVhen in use the cap is loosened.
- the calibre of the tube being small, a moderate riseof the diaphragm c wilLforce the mercury to the top, the degree of pressure being indicated by the position of the mercury, seen through the glass face, of the tube, and canbe marked, it necessnry, by a sliding hand or, index, or in any other convenient manner.
- a gas-fitters pressure-gauge constructed by combining the base 'A, containing the reservoir 6, elastic bottorn c, and socket a, with the shank of the tube B, in the manner and for the purpose described.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Measuring Fluid Pressure (AREA)
Description
R. B. DONALDSON.
Pressure Gage, No. 66,221 Patented July 2, 1867.
nventor gums grates 33mm @ffir z.
R. B. DONALDSON OF WASHINGTON, DISTRICT OF COLUMBIA.
. Letters Patent No. 66,227, and Jul 2, 1867 IMPROVEMENT IN PRESSURE-GAUGES FOB. GAS-PETERS.
digs -tl1thnltttfrrtrh in iirllgtsvfittts an: ant mailing tart ni flgt mun.
'iO ALL WHOM IT MAY CONCERN:
Be it known that I, R. B. DONALDsoN, of Washington, District of Columbia, have invented a. new and improved Pressure-Gauge for the use of Gas-Fitters and others; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings,'and -to the letters of reference marked thereon.
My invention consists in constructing a tube wit-h an expanded base or. reservoir, thebottom of which is formed of India rubber of sufficient elasticity to allow of its displacing, when pressure is applied from below, as much mercury (with which the reservoir is filled) as will fill the tube to the top. The degree of pressure is indicated by the elevation of the mercury in the tube, which is provided with aglassface and a scale marked in any convenient manner. r
To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation. v
The base is of metal, as shown at A, Figure 1, with a chamber or reservoir, 11, with an elastic bottom, 0, and is filled with mercury. At the lower end is the socket a, by which the gauge is attached to the pipe to be tested. The top of the reservoir is formed by the shank or lower end of the tube B, and is of wood, one half of which, above 01, is cut away longitudinally, and its place supplied with a plateglass face cemented thereto, and clamped firmly by the metal case e, as shown in cross-sections Figures 2 and 3.
Figure 4 is a view of the top and the cap Q, with a packing of India rubber on the under side, which is tightened upon the top of the tube,by means of the thumb-screw f, to prevent the loss of the mercury during transportation. .lVhen in use the cap is loosened. The calibre of the tube being small, a moderate riseof the diaphragm c wilLforce the mercury to the top, the degree of pressure being indicated by the position of the mercury, seen through the glass face, of the tube, and canbe marked, it necessnry, by a sliding hand or, index, or in any other convenient manner.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent,-is, not the tube, formedpart-ly of wood, vuleanite, or other analogous material, and with a glass face cemented thereto, and secured bya clamp or clamps, as described, as that is the invention of Emmett Quinn, for which he designs making application for Letters Patent, and his claim to the invention of which I hereby recognize; but
A gas-fitters pressure-gauge,constructed by combining the base 'A, containing the reservoir 6, elastic bottorn c, and socket a, with the shank of the tube B, in the manner and for the purpose described.
' R. B. DONALDSON.
Witnesses:
J. D. CLARK, EMMETT QUINN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US66227A true US66227A (en) | 1867-07-02 |
Family
ID=2135753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US66227D Expired - Lifetime US66227A (en) | Improvement in pressure-gauges for gas-fitters |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US66227A (en) |
-
0
- US US66227D patent/US66227A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US66227A (en) | Improvement in pressure-gauges for gas-fitters | |
| US70531A (en) | Impkovement in weights foe scales | |
| US1221668A (en) | Measuring instrument. | |
| US69894A (en) | beaedsleb | |
| US1125236A (en) | Strain-indicator. | |
| US62885A (en) | Emmett qttinn | |
| US124389A (en) | Improvement in leveling instruments | |
| US375049A (en) | Bevel-protractor | |
| US140867A (en) | Improvement in dials for pressure-gages | |
| US600049A (en) | Calipers | |
| US772334A (en) | Calipers. | |
| US61398A (en) | William b | |
| US90988A (en) | Improvement in combined steam and vacttum-g-attgre | |
| US20848A (en) | grimes | |
| US77997A (en) | mathewson | |
| US28724A (en) | Steam-pressure gage | |
| US1136826A (en) | Combination pocket-tool. | |
| US62568A (en) | Peter schofield | |
| US64825A (en) | Improvement in measubing-funnels | |
| US4702A (en) | Comte de fontainemoeeatt | |
| US127506A (en) | Improvement in funnels | |
| US124816A (en) | Improvement in registering steam-gauges | |
| US2049A (en) | Mode of ascebtarntng the pressuse of steamc in the boilers of steam | |
| US36872A (en) | Improvement in mercurial barometers | |
| US98106A (en) | Improvement in combined square and califer |