US516851A - Sealing device for valves - Google Patents
Sealing device for valves Download PDFInfo
- Publication number
- US516851A US516851A US516851DA US516851A US 516851 A US516851 A US 516851A US 516851D A US516851D A US 516851DA US 516851 A US516851 A US 516851A
- Authority
- US
- United States
- Prior art keywords
- seal
- valves
- sealing device
- wires
- valve
- 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
- 238000007789 sealing Methods 0.000 title description 10
- 239000000463 material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 101100272279 Beauveria bassiana Beas gene Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/03—Forms or constructions of security seals
- G09F3/0305—Forms or constructions of security seals characterised by the type of seal used
- G09F3/0347—Forms or constructions of security seals characterised by the type of seal used having padlock-type sealing means
- G09F3/0352—Forms or constructions of security seals characterised by the type of seal used having padlock-type sealing means using cable lock
-
- 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
- Y10T137/7069—With lock or seal
- Y10T137/71—With seal
-
- 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
- Y10T292/00—Closure fasteners
- Y10T292/48—Seals
- Y10T292/481—Compressible disk
Definitions
- the object of this invention is to provide an improved and novel sealing devicefor valves, which requires a practically unyielding, inelastic but refragable connection between the movable and stationary parts; said. invention consisting essentially of two wire or other loops of a non-stretchable material, such as steel, having their inner or adjacent ends embedded in a seal of a material easily broken or separated, and their outer or looped ends adapted to be attached respectively to the movable and stationary parts, said seal being preferably weakened ata point between where the two wires are embedded; so thata' predetermined strain'on the wires will part the seal and release the movable part as more fully hereinafter described.
- a non-stretchable material such as steel
- a designates the seal,which is of a uniform thickness before stamped or compressed.
- Two longitudinal openings ct a. are formed through the seal, these holes being formed at diametrically opposite points.
- the twisted ends of the respective wire loops (1 are inserted in the respective openings, these loops being formed, of course as long as the exigencies of the particular case may render necessary.
- a suitable tool is 'employed that will compress the seal and form a narrowed portion or strip 0 across the same beas taut as possible before sealing, so that it will be impossible to start the valve without breaking the seal.
- it is simply necessary to rotate the wheel sufficiently to break the seal in two, the power required to be exerted on the wheel being determined by the thickness of the narrowed connecting portion between the two parts of the seal, as is evident.
- this device is only intended to seal those valves that are used infrequently and where it is desired that any tampering-with the valve will be made evident to the inspector.
- the invention may be applied to the sealing of any valve of whatever construction and for that and other reasons it is an improvement over existing devices. Itis obvious,however, that the main improvement lies in the fact that as the seal breaks and not the straps, which are of an unyielding, inelastic material, there can be no stretching and consequent partial opening of the valve.
- the seal may be weakenedin'any other manner without departing from the invention, as it is simply necessary that the seal forming connection between the wires be so constructed as to break before the wires part or stretch.
- a sealing device for valves, &c. consisting of two independent Wire connections and a soft metal seal connecting their adjacent ends, said seal being adapted to break at a point between where the wires connect to the seal, substantially as described.
- a sealing device for valves, &c. consisting of a soft-metal seal and two oppositely extending separable wire-loops connected to the seal at opposite sides, said seal being adapted to break between the wires, substantially as described.
- a sealing device for valves, &c. consisting of two independent wire loops, and aseal connecting the adjacent ends of the wire loops, said seal being weakened at a point between having said twisted ends embedded in it,
- sealing device will be inelastic and-a strain on the loops in opposite directions will part the seal between the wires, substantially as described.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Ropes Or Cables (AREA)
Description
(Nd M del.) 9 I S EALING DEVIOE POKVALVBS, 8w.
- No. 516,851. Patented Mar. 20, 1894.
I yzmmo I V I h d7 MQMW THE NATIONAL mum": couwuw. msmmrok. 6. m
UNITED STATES PATENT GEEICE.
GEORGE A. TOWER, OF RICHMOND, VIRGINIA.
SEALING DEVICE FOR VALVES, 84C.
SPECIFICATION forming part of Letters Patent No. 516,851, dated March 20, 1894. Application filed september 20,1893- $eria1Nm 486,027. (No modeLl To all whom it may concern:
Be it known that I, GEORGE A; TOWER, a' citizen of the United States, residing at Richmond, in the county of Henrico and State of Virginia, -have invented certain new and useful Improvements in Sealing Devices for Valves, &c., of which the following is a specification, reference being had therein to the accompanying drawings, in which- Figure 1 is a detail side elevation of the seal, showing it stamped or compressed; Figs. 2 and 3 edge elevations showing the seal respectively before and after stamping, and Fig. 4 an end elevation of a fluid valve sealed against opening with my improved sealing device.
The object of this invention is to provide an improved and novel sealing devicefor valves, which requires a practically unyielding, inelastic but refragable connection between the movable and stationary parts; said. invention consisting essentially of two wire or other loops of a non-stretchable material, such as steel, having their inner or adjacent ends embedded in a seal of a material easily broken or separated, and their outer or looped ends adapted to be attached respectively to the movable and stationary parts, said seal being preferably weakened ata point between where the two wires are embedded; so thata' predetermined strain'on the wires will part the seal and release the movable part as more fully hereinafter described.
In the drawings, a designates the seal,which is of a uniform thickness before stamped or compressed. Two longitudinal openings ct a. are formed through the seal, these holes being formed at diametrically opposite points. The twisted ends of the respective wire loops (1 are inserted in the respective openings, these loops being formed, of course as long as the exigencies of the particular case may render necessary. When the wires are looped around the parts of the valve to be sealed and are drawn taut and the twisted ends inserted in the openings, the seal is compressed or'stamped so as to permanently embed the twisted ends therein.
In stamping, a suitable tool is 'employed that will compress the seal and form a narrowed portion or strip 0 across the same beas taut as possible before sealing, so that it will be impossible to start the valve without breaking the seal. When it is desired to open the valve, it is simply necessary to rotate the wheel sufficiently to break the seal in two, the power required to be exerted on the wheel being determined by the thickness of the narrowed connecting portion between the two parts of the seal, as is evident.
. It is obvious that this device is only intended to seal those valves that are used infrequently and where it is desired that any tampering-with the valve will be made evident to the inspector. The invention may be applied to the sealing of any valve of whatever construction and for that and other reasons it is an improvement over existing devices. Itis obvious,however, that the main improvement lies in the fact that as the seal breaks and not the straps, which are of an unyielding, inelastic material, there can be no stretching and consequent partial opening of the valve. The seal may be weakenedin'any other manner without departing from the invention, as it is simply necessary that the seal forming connection between the wires be so constructed as to break before the wires part or stretch.
While the inventionlis designed especially for use on valves and while I have shown and described it in no other connection, yet it is sirable, other equivalent non-stretchable material, such as steel-bands, may be used without departing from the invention in the least.
Having thus fully described my invention, what I claim is- 1. A sealing device for valves, &c., consisting of two independent Wire connections and a soft metal seal connecting their adjacent ends, said seal being adapted to break at a point between where the wires connect to the seal, substantially as described.
2. A sealing device for valves, &c., consisting of a soft-metal seal and two oppositely extending separable wire-loops connected to the seal at opposite sides, said seal being adapted to break between the wires, substantially as described.
3. A sealing device for valves, &c., consisting of two independent wire loops, and aseal connecting the adjacent ends of the wire loops, said seal being weakened at a point between having said twisted ends embedded in it,
whereby the sealing device will be inelastic and-a strain on the loops in opposite directions will part the seal between the wires, substantially as described.
In testimony whereof I aifix my signature in presence of two witnesses.
GEORGE A. TOWER.
Witnesses:
'l. T. HARRIS, W. T. HARRIS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US516851A true US516851A (en) | 1894-03-20 |
Family
ID=2585656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US516851D Expired - Lifetime US516851A (en) | Sealing device for valves |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US516851A (en) |
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0
- US US516851D patent/US516851A/en not_active Expired - Lifetime
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