US1680060A - Manhole coveb fob oil tanks - Google Patents
Manhole coveb fob oil tanks Download PDFInfo
- Publication number
- US1680060A US1680060A US1680060DA US1680060A US 1680060 A US1680060 A US 1680060A US 1680060D A US1680060D A US 1680060DA US 1680060 A US1680060 A US 1680060A
- Authority
- US
- United States
- Prior art keywords
- coveb
- manhole
- tank
- oil tanks
- neck
- 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
- 239000007788 liquid Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 241000218652 Larix Species 0.000 description 1
- 235000005590 Larix decidua Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
Definitions
- a further and equally important object is to provide a manhole cover which 1s of highly simplified construct on, eflicient 1n use, and which mg be applled to either flat er cone-shaped ta tops.
- a further object is to provide a manhole cover which consists of few parts and which is provided with a separate lid possessed of adequate weight to withstand normal pressure and which is extended beyond the body or neck of the cover so as to prevent ram water and snow from entering the tank or the liquid containing trough which forms one of the elements of the seal.
- Figure 1 is a perspective of the improved manhole cover applied
- Figure 2 is a horizontal sectional view through the same applied.
- the numeral 5 designates a tank which may be metal or wood.
- the top to which the improved manhole cover is applied may be flat as most wood tanks are or it may be conical as some metal tanks are. in other words, the shape of the tank makes no diflerence as the base may be cast flat, curved or otherwise to suit the tank top or dechng.
- the improved manhole cover comprises a body or neck 6 having a laterally projecting attaching flange 7 which may be secured to the top of the tank by rivets, bolts, or other suitable" fastening devices 8.
- the neck 6 is attached to the top of the tank directly over the opening of the same and has connection with a plurality ofradial pipes 9 which may extend from the various producing wells on a lease.
- the tank may be supplied with oil from other sources.
- Figure 2 plainly illustrates that the upper portion of the neck 6 is provided with inner and outer walls 10 and 11, respectively, which define an annular liquid containing trough 12 in which a quantity of oil is introduced.
- inner wall is slightly below the plane of the outer wall 11 so that in the event of an overflow of a portion of the oil in the channel 12 the fluid will not flow outwardly. Any oil which overflows from the channel .12 wil l drip down through the neck 6 and into the tank.
- a lid 16 is detachably applied to the neck and is provided at a point spaced from the outer edge thereof with a depending flange 17 which is detachably received in the channel 12 whereby a liquid seal is established between the lid and the neck.
- the liquid seal thus established prevents evaporation which would otherwise take place and thereby maintains the original gravity of the oil in so far as it is possible to do so.
- Figure 2 also illustrates that the edge portion of the lid 16 is extended beyond the outer surface of the neck 6 to provide a shed for the rain and snow whereby rain and the like is prevented from entering the channel 12 when the lid is applied.
- the lid 16 is heavy enough to withstand normal gas pressure when the tank contains oil and to withstand the pressurewhen the tank is empty and a vacuum is present.
- the improvedmanhole cover consists of only two separate parts so that the cost is low and the maintenance of the improved manhole cover is made a simple and econom ical matter.
- the inner wall 10 is substantially stouter than theouter wall 11 so that the same can withstand the strain incident to the periodical cleaning of the tank, etc.
- a manhole cover comprising a thick walled upstanding circular neck having means whereby the same may be rigidly at tached to the top of an oil tank to surround said opening,.sa1d neck being provided with Aug. 7, 1928. 1,680,061
Description
Eli
Patented Aug. 1, 1928.
UNITED STATES mourn nnwann Hanson, or cnarsm,oxnmom MANHOLE COVER FOR 01L TANKS.
Application filed larch 15, 1926. Serial No. 84,886.
mg novel means to provide a liquid seal at the point where the cover is apphed to avoid evaporation and to maintain the original gravity of the oil so far as is possible.
A further and equally important object is to provide a manhole cover which 1s of highly simplified construct on, eflicient 1n use, and which mg be applled to either flat er cone-shaped ta tops.
A further object is to provide a manhole cover which consists of few parts and which is provided with a separate lid possessed of suficient weight to withstand normal pressure and which is extended beyond the body or neck of the cover so as to prevent ram water and snow from entering the tank or the liquid containing trough which forms one of the elements of the seal.
Uther objects and advantages will be apparent during the course of the following description.
in the accompanying drawings forming a part of this application and in which like numerals are employed to designate like parts thro bout the same,
Figure 1 is a perspective of the improved manhole cover applied;
Figure 2 is a horizontal sectional view through the same applied.
in the drawing, the numeral 5 designates a tank which may be metal or wood. The top to which the improved manhole cover is applied may be flat as most wood tanks are or it may be conical as some metal tanks are. in other words, the shape of the tank makes no diflerence as the base may be cast flat, curved or otherwise to suit the tank top or dechng.
The improved manhole cover comprises a body or neck 6 having a laterally projecting attaching flange 7 which may be secured to the top of the tank by rivets, bolts, or other suitable" fastening devices 8. The neck 6 is attached to the top of the tank directly over the opening of the same and has connection with a plurality ofradial pipes 9 which may extend from the various producing wells on a lease. Of course, the tank may be supplied with oil from other sources.
Figure 2 plainly illustrates that the upper portion of the neck 6 is provided with inner and outer walls 10 and 11, respectively, which define an annular liquid containing trough 12 in which a quantity of oil is introduced. Particular attention is invited to the fact that the inner wall is slightly below the plane of the outer wall 11 so that in the event of an overflow of a portion of the oil in the channel 12 the fluid will not flow outwardly. Any oil which overflows from the channel .12 wil l drip down through the neck 6 and into the tank.
A lid 16 is detachably applied to the neck and is provided at a point spaced from the outer edge thereof with a depending flange 17 which is detachably received in the channel 12 whereby a liquid seal is established between the lid and the neck. The liquid seal thus established prevents evaporation which would otherwise take place and thereby maintains the original gravity of the oil in so far as it is possible to do so.
Figure 2 also illustrates that the edge portion of the lid 16 is extended beyond the outer surface of the neck 6 to provide a shed for the rain and snow whereby rain and the like is prevented from entering the channel 12 when the lid is applied.
The lid 16 is heavy enough to withstand normal gas pressure when the tank contains oil and to withstand the pressurewhen the tank is empty and a vacuum is present.
The improvedmanhole cover consists of only two separate parts so that the cost is low and the maintenance of the improved manhole cover is made a simple and econom ical matter.
With reference to Figures 3 and 5 it will be seen that the inner wall 10 is substantially stouter than theouter wall 11 so that the same can withstand the strain incident to the periodical cleaning of the tank, etc.
It is to be understood that the form of invention herewith shown and described is to be taken merely as a preferred example of the same and that such minor changes in arrangement and construction of parts may be made as will remain within the spirit of the invention and the scope of what is claimed.
Having thus described the invention, what is claimed is:
In an oil storage tank having a top opening, a manhole cover comprising a thick walled upstanding circular neck having means whereby the same may be rigidly at tached to the top of an oil tank to surround said opening,.sa1d neck being provided with Aug. 7, 1928. 1,680,061
L R. G. NELSON SPUN METAL MANUFACTURE AND PRODUCT Filed Sept. 16, 1926 5 Sheets-Sheet l u-Illmw Inn-mum gwomliw f1. l/Velmlz
Publications (1)
Publication Number | Publication Date |
---|---|
US1680060A true US1680060A (en) | 1928-08-07 |
Family
ID=3415730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US1680060D Expired - Lifetime US1680060A (en) | Manhole coveb fob oil tanks |
Country Status (1)
Country | Link |
---|---|
US (1) | US1680060A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2606687A (en) * | 1945-06-21 | 1952-08-12 | Marek Josef | Closure for fermentation vessels |
US2780386A (en) * | 1950-07-10 | 1957-02-05 | Charles S Evans | Frozen seal receptacle |
US4162020A (en) * | 1977-06-03 | 1979-07-24 | Donald K. Smith | Anti-spill device |
-
0
- US US1680060D patent/US1680060A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2606687A (en) * | 1945-06-21 | 1952-08-12 | Marek Josef | Closure for fermentation vessels |
US2780386A (en) * | 1950-07-10 | 1957-02-05 | Charles S Evans | Frozen seal receptacle |
US4162020A (en) * | 1977-06-03 | 1979-07-24 | Donald K. Smith | Anti-spill device |
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