US724939A - Manhole or other cover. - Google Patents

Manhole or other cover. Download PDF

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Publication number
US724939A
US724939A US6940901A US1901069409A US724939A US 724939 A US724939 A US 724939A US 6940901 A US6940901 A US 6940901A US 1901069409 A US1901069409 A US 1901069409A US 724939 A US724939 A US 724939A
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United States
Prior art keywords
cover
aperture
ring
manhole
metal
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Expired - Lifetime
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US6940901A
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Joseph Leon Marie Alphonse Reis
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Individual
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Priority to US6940901A priority Critical patent/US724939A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • B65D45/28—Elongated members, e.g. leaf springs, located substantially at right angles to closure axis and acting between the face of the closure and abutments on container
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S285/00—Pipe joints or couplings
    • Y10S285/901—Cap closures

Definitions

  • the metal cover and the metal of the boiler may be obtained without the aid of any ordinary packing or lute, while at the same time such,covers may be readily introduced into position from the exterior.
  • the invention consists, essentially, in the use of a circular tapering cover of smaller diameter than the aperture to which it is applied, so as to enable it to be introduced from the exterior, in combination with a metallic conical and flexible-ring which serves to fill the space between the edge of the cover and the edge of the aperture, the said ring being pressed into position in the aperture by the cover.
  • FIG. 1 is a sectional view showing the cover in position.
  • Fig. 2 is a sectional view showing the aperture which is to be covered and the manner of introducing the flexible ring;
  • Fig.3 is a front view showing the mannor in which the cover automatically'presses the ring into position.
  • the aperture 2 to be closed in a boiler-wall 1 is formed with an edge 7, slightly tapering inward.
  • the cover 3 is also formed with tapering edge 8, but in a more accentuated form than the aperture, and said cover 3 is provided with a bolt 4 fortightening it, and its diameter is of such a size as to enable it to be readily introduced in the aperture 2.
  • ring 5 is provided, which serves to fill the annular space resulting from the difference in the diameters of the aperture 2 and its cover 3 and to form a perfectly tight joint without having to grind the parts together.
  • a flexible metal the aperture 2, and then the metal packingring 5 is inserted by slightly compressing it into an oval shape, as shown, Fig. 2,-and is then erected and placed in position.
  • the cover 3 is then pulled forward, and owing to its tapered shape it is-enabled to enter the packing-ring 5, although oval, and gradually reshapes the latter to its circular form, as shown in Fig. 3, while at the same time advancing it into its proper forward position.
  • the final tightening with increased force is effected by tightening the nut 9 of the screwbolt 4 against a bow piece or strap 6, for example, so as to compress the packing-ring more and more between the tapering surfaces 7 8.
  • the internal pressure also aids, after the joint is made, in keeping the joint tight.
  • the ring 5 is made of relatively soft and inoxidizable metal and forms a perfectly tight joint without fear of the parts becom-- ing oxidized by long contact with water or becoming firmly fixed together, as is generally the case where iron is in contact with iron.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Description

No. 724,939. 7 -PATBNTED APR. 7', 1903.
' J. L. M. A. REIS.
MANHOLE OR OTHER COVER. APPLICATION FILED JULY 23, 1901.
UNITED STATES PATENT OFFICE.
JOSEPH LEON MARIE ALPHQNSE REIS, or ANTWERP, BELGIUM.
MANHOLE OR'OTHER COVER.
. SPEQIFIGATIOH forming part Of Lettefl'raiient No. 724,939, dated April 7, 1903. Application filed July 23, 1901. Serial 110.69.409. (No model.)
, To all whom it may concern:
Be it known that I, J OSEPH LEON MARIE ALPHONSE REIS, a subject of the King of Belgium, residing at 30 Boulevard Leopold, Antwerp, in theKingdom of Belgium, have invented a cert in newand useful Manhole or other Cover, of which the following is a specification.
the metal cover and the metal of the boiler may be obtained without the aid of any ordinary packing or lute, while at the same time such,covers may be readily introduced into position from the exterior.
The invention consists, essentially, in the use of a circular tapering cover of smaller diameter than the aperture to which it is applied, so as to enable it to be introduced from the exterior, in combination with a metallic conical and flexible-ring which serves to fill the space between the edge of the cover and the edge of the aperture, the said ring being pressed into position in the aperture by the cover.
In order that my invention may be fully understood, '1 will proceed to describe the same with reference to the accompanying drawings, in which- Figure 1 is a sectional view showing the cover in position. Fig. 2 is a sectional view showing the aperture which is to be covered and the manner of introducing the flexible ring; Fig.3 is a front view showing the mannor in which the cover automatically'presses the ring into position.
According to my invention the aperture 2 to be closed in a boiler-wall 1 is formed with an edge 7, slightly tapering inward. The cover 3 is also formed with tapering edge 8, but in a more accentuated form than the aperture, and said cover 3 is provided with a bolt 4 fortightening it, and its diameter is of such a size as to enable it to be readily introduced in the aperture 2. ring 5 is provided, which serves to fill the annular space resulting from the difference in the diameters of the aperture 2 and its cover 3 and to form a perfectly tight joint without having to grind the parts together.
A flexible metal the aperture 2, and then the metal packingring 5 is inserted by slightly compressing it into an oval shape, as shown, Fig. 2,-and is then erected and placed in position. The cover 3 is then pulled forward, and owing to its tapered shape it is-enabled to enter the packing-ring 5, although oval, and gradually reshapes the latter to its circular form, as shown in Fig. 3, while at the same time advancing it into its proper forward position. The final tightening with increased force is effected by tightening the nut 9 of the screwbolt 4 against a bow piece or strap 6, for example, so as to compress the packing-ring more and more between the tapering surfaces 7 8. The internal pressure also aids, after the joint is made, in keeping the joint tight.
The ring 5 is made of relatively soft and inoxidizable metal and forms a perfectly tight joint without fear of the parts becom-- ing oxidized by long contact with water or becoming firmly fixed together, as is generally the case where iron is in contact with iron.
The improved arrangement tage that the parts do not require tobe ground together and do not require to be fitted with precision even, while, moreover, the tapering surfaces of the aperture in-the plate and of the cover are not subject to wear, so that only the packing-ring, which is of small value, requires renewing when necessary.
Having thus described my invention, what I claim is- In a manhole or other cover, the combination with a'wall formed with a circular taper-.
ing, aperture, the smaller diameter of which is situa ed at the outside of the wall, of a circular cover tapered in the same direction,
has the advanthe taper of the aperture and cover being at smaller diameter of the aperture, a flexible metallic ring situated between the edges of the cover and the aperture, and means for exerting an outward pressure upon said cover to compress said ring.
In witness whereof I have hereunto set my hand in presence of two witnesses.
Witnesses:
- FRANCIS WANILLO, II. CHRISTIANSEN.
JOSEPH LEON MARIE ALlllONSE RElS.
IOO
US6940901A 1901-07-23 1901-07-23 Manhole or other cover. Expired - Lifetime US724939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US6940901A US724939A (en) 1901-07-23 1901-07-23 Manhole or other cover.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6940901A US724939A (en) 1901-07-23 1901-07-23 Manhole or other cover.

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US724939A true US724939A (en) 1903-04-07

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527949A (en) * 1946-04-23 1950-10-31 Oil Well Supply Co Slush pump valve cover
US2562946A (en) * 1948-02-11 1951-08-07 Donald G Read Water well cap
US2582996A (en) * 1945-03-02 1952-01-22 Milton P Laurent Seal for gate valve bonnets
US2582997A (en) * 1947-10-20 1952-01-22 Milton P Laurent Cosure
US2687229A (en) * 1953-03-03 1954-08-24 Milton P Laurent Pressure tightened joint
US3379332A (en) * 1964-05-05 1968-04-23 G & J Weir Ltd Closure devices

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582996A (en) * 1945-03-02 1952-01-22 Milton P Laurent Seal for gate valve bonnets
US2527949A (en) * 1946-04-23 1950-10-31 Oil Well Supply Co Slush pump valve cover
US2582997A (en) * 1947-10-20 1952-01-22 Milton P Laurent Cosure
US2562946A (en) * 1948-02-11 1951-08-07 Donald G Read Water well cap
US2687229A (en) * 1953-03-03 1954-08-24 Milton P Laurent Pressure tightened joint
US3379332A (en) * 1964-05-05 1968-04-23 G & J Weir Ltd Closure devices

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