US203817A - Improvement in man-hole covers for oil-tanks - Google Patents
Improvement in man-hole covers for oil-tanks Download PDFInfo
- Publication number
- US203817A US203817A US203817DA US203817A US 203817 A US203817 A US 203817A US 203817D A US203817D A US 203817DA US 203817 A US203817 A US 203817A
- Authority
- US
- United States
- Prior art keywords
- man
- cover
- tank
- tanks
- oil
- 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 12
- 239000007789 gas Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 101700078171 KNTC1 Proteins 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000001066 destructive Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000008246 gaseous mixture Substances 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000002940 repellent Effects 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 230000002269 spontaneous Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F1/00—Refuse receptacles; Accessories therefor
- B65F1/14—Other constructional features; Accessories
- B65F1/16—Lids or covers
- B65F1/1623—Lids or covers with means for assisting the opening or closing thereof, e.g. springs
Definitions
- the object of this invention is to prevent the disastrous consequences which often follow from the ignition of vapors generated within. tanks when partially filled with inflammable substances, by novel combinations which provide for the gradual but constant emission of the vapors or gases from the manhole of the tank when partially filled with the inflammable liquid while in its unignited, quiescent state, and also in cases of ignition of the vapors by lightning or other cause, for the instantaneous escape of the expanding gas, and for the immediate closing of the manhole by the return .of its cover, whereby the incipient flame engendered by ignition of the vapor is instantly quenched before its communication to the liquid contents of the tank, and destructive conflagration and rupture of the tank averted.
- Figure 1 represents this invention in plan or top view with cover down; Fig. 2, the side elevation, showing the back of the cover when elevated; and Fig. 3 is a central vertical sectional view of the same with cover elevated, showing the ball and rod.
- a curved rod, b uponwhich is a ball or weight, C, so adjusted by means of a setscrew, 0, as to exert, when the man-hole is closed by the cover, a repellent or upward force so nearly in counterpoise to the natural weight of the cover or plate as to hold the same in easy and light contact with the sur face-edge of the man-hole, so that the cover at once and continuously responds, by lifting upward, to any pressure of the gases within the tank A, whether from their natural spontaneous expansion, or as resulting from accidental ignition of the vapors therein gath-
- This constant emission of the gases greatly diminishes the chances of disaster by keeping the explosive matter evolved within the tank in so reduced and tenuous a state as to lessen the liability of combustion when exposed to ignition.
- Figs. 2 and 3 of the accompanying drawing show the novel combination with the coverv B of the supporting or cross bar D, and by the arm d of the catchE pivoted to its lug e, which is affixed to the top of the tank in convenient contiguity to the man-hole.
- the cover when elevated, is held in position at such an angle of elevation that whenever the gaseous mixture present within a tank partially filled with inflammable liquid chances to become ignited, and serious conflagration ensues by communication to the liquid in the tank, the flame and expanded air, rushing from the man-hole, force back the cover sufficiently to detach the catch E, which then acts as a cam, and the cover, oscillating between the counter-resistance of the upward force of the flame and the downward force of the weight 0, soon resumes its normal position in contact with theman-hole, and smothers the flame within the tank.
- WVhat I claim as my invention is-- The combination, with the hinged cover B of a tank, A, for holding petroleum or other hydrocarbon liquids, of the curved rod 1) and weight 0, with the set-screw c of the crossbar D, and hinged catch and cam E, substantially as herein set forth, and for the purposes as above described.
Description
' W. H B ROGK. Man-Hole Cover for Oil-Tank.
No. 203,817,. Patented May 21,1878.
warn
MPETERS, PHOTO-LITNOGRAPNER. WASHINGTON. D. C.
cred.
UNITED STATES PATENT OFFIOE.
WILLIAM H. BROOK, or BROOKLYN, ASSIGNOR TO A. J. POUOH, OF sAIvIE PLACE, AND J. A. BOSTWIOK, OF NEW YORK, N. Y.
IMPROVEMENT IN MAN-HOLE COVERS FOR OIL-TANKS.
Specification forming part of Letters Patent No. 203,817, dated May 21, 1878 application filed March 16, 1878.
tion
The object of this invention is to prevent the disastrous consequences which often follow from the ignition of vapors generated within. tanks when partially filled with inflammable substances, by novel combinations which provide for the gradual but constant emission of the vapors or gases from the manhole of the tank when partially filled with the inflammable liquid while in its unignited, quiescent state, and also in cases of ignition of the vapors by lightning or other cause, for the instantaneous escape of the expanding gas, and for the immediate closing of the manhole by the return .of its cover, whereby the incipient flame engendered by ignition of the vapor is instantly quenched before its communication to the liquid contents of the tank, and destructive conflagration and rupture of the tank averted.
Figure 1 represents this invention in plan or top view with cover down; Fig. 2, the side elevation, showing the back of the cover when elevated; and Fig. 3 is a central vertical sectional view of the same with cover elevated, showing the ball and rod.
To the inside of the hinged man-hole cover B of the tank A, as shown in Fig. 3, is fastened a curved rod, b, uponwhich is a ball or weight, C, so adjusted by means of a setscrew, 0, as to exert, when the man-hole is closed by the cover, a repellent or upward force so nearly in counterpoise to the natural weight of the cover or plate as to hold the same in easy and light contact with the sur face-edge of the man-hole, so that the cover at once and continuously responds, by lifting upward, to any pressure of the gases within the tank A, whether from their natural spontaneous expansion, or as resulting from accidental ignition of the vapors therein gath- This constant emission of the gases greatly diminishes the chances of disaster by keeping the explosive matter evolved within the tank in so reduced and tenuous a state as to lessen the liability of combustion when exposed to ignition.
When the cover is raised, at whatever angle of elevation, the rod and ball in this novel combination, by their downward force, act as a dead weight in returning it to its normal position in closing the man-hole, so that, when the cover is thrown upward by a sudden puff of the exploded gas within the tank, its immediate return eloses the man-hole, extinguishes any flame at the outset, and, excluding the external air, prevents ignition of the liquid contents of the tank.
Figs. 2 and 3 of the accompanying drawing show the novel combination with the coverv B of the supporting or cross bar D, and by the arm d of the catchE pivoted to its lug e, which is affixed to the top of the tank in convenient contiguity to the man-hole.
By this device the cover. when elevated, is held in position at such an angle of elevation that whenever the gaseous mixture present within a tank partially filled with inflammable liquid chances to become ignited, and serious conflagration ensues by communication to the liquid in the tank, the flame and expanded air, rushing from the man-hole, force back the cover sufficiently to detach the catch E, which then acts as a cam, and the cover, oscillating between the counter-resistance of the upward force of the flame and the downward force of the weight 0, soon resumes its normal position in contact with theman-hole, and smothers the flame within the tank.
WVhat I claim as my invention is-- The combination, with the hinged cover B of a tank, A, for holding petroleum or other hydrocarbon liquids, of the curved rod 1) and weight 0, with the set-screw c of the crossbar D, and hinged catch and cam E, substantially as herein set forth, and for the purposes as above described.
WILLIAM H. BROOK.
Witnesses ALEXANDER H. WRIGHT, R. W. KEENE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US203817A true US203817A (en) | 1878-05-21 |
Family
ID=2273222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US203817D Expired - Lifetime US203817A (en) | Improvement in man-hole covers for oil-tanks |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US203817A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599991A (en) * | 1985-10-02 | 1986-07-15 | Miller Brewing Company | Door for brew kettle |
| US6042286A (en) * | 1998-07-17 | 2000-03-28 | Pazienza; Karen M. | Lotion dispensing applicator |
| US20140299602A1 (en) * | 2013-04-09 | 2014-10-09 | Grigooris MANSSOURIAN | Retainer mechanism |
| US20160340118A1 (en) * | 2015-05-21 | 2016-11-24 | The Boeing Company | Methods and systems for waste management |
| US9738442B2 (en) | 2015-05-21 | 2017-08-22 | The Boeing Company | Methods and systems for waste management |
| US10618730B2 (en) | 2015-03-02 | 2020-04-14 | Grigooris MANSSOURIAN | Retainer mechanism |
| US20220315294A1 (en) * | 2019-07-23 | 2022-10-06 | Sullair, Llc | Integrated lifting and pivoting device |
-
0
- US US203817D patent/US203817A/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599991A (en) * | 1985-10-02 | 1986-07-15 | Miller Brewing Company | Door for brew kettle |
| US6042286A (en) * | 1998-07-17 | 2000-03-28 | Pazienza; Karen M. | Lotion dispensing applicator |
| US20140299602A1 (en) * | 2013-04-09 | 2014-10-09 | Grigooris MANSSOURIAN | Retainer mechanism |
| US9856079B2 (en) * | 2013-04-09 | 2018-01-02 | Grigooris MANSSOURIAN | Retainer mechanism |
| US10618730B2 (en) | 2015-03-02 | 2020-04-14 | Grigooris MANSSOURIAN | Retainer mechanism |
| US20160340118A1 (en) * | 2015-05-21 | 2016-11-24 | The Boeing Company | Methods and systems for waste management |
| US9738442B2 (en) | 2015-05-21 | 2017-08-22 | The Boeing Company | Methods and systems for waste management |
| US9957106B2 (en) * | 2015-05-21 | 2018-05-01 | The Boeing Company | Methods and systems for waste management |
| US20220315294A1 (en) * | 2019-07-23 | 2022-10-06 | Sullair, Llc | Integrated lifting and pivoting device |
| US11667442B2 (en) * | 2019-07-23 | 2023-06-06 | Sullair, Llc | Integrated lifting and pivoting device |
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