WO1997033048A1 - Appareil et procede ameliores de positionnement de piece de fonte - Google Patents

Appareil et procede ameliores de positionnement de piece de fonte Download PDF

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Publication number
WO1997033048A1
WO1997033048A1 PCT/CA1997/000156 CA9700156W WO9733048A1 WO 1997033048 A1 WO1997033048 A1 WO 1997033048A1 CA 9700156 W CA9700156 W CA 9700156W WO 9733048 A1 WO9733048 A1 WO 9733048A1
Authority
WO
WIPO (PCT)
Prior art keywords
casting
inner sleeve
sleeve
manhole
rubber ring
Prior art date
Application number
PCT/CA1997/000156
Other languages
English (en)
Inventor
Ronald B. Armstrong
Original Assignee
Armstrong Ronald B
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US08/611,418 external-priority patent/US5634739A/en
Application filed by Armstrong Ronald B filed Critical Armstrong Ronald B
Priority to AU18646/97A priority Critical patent/AU1864697A/en
Publication of WO1997033048A1 publication Critical patent/WO1997033048A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1409—Covers for manholes or the like; Frames for covers adjustable in height or inclination

Definitions

  • the present invention relates to manhole casting installation apparatus and methods.
  • the invention relates to a casting positioning apparatus, for positioning a casting in relation to an upper end of a manhole, and cementing the casting in place on the manhole at the desired height and slope.
  • the present inventor is also the inventor of the manhole casting positioning apparatus disclosed in United States patent no. 4,666,333 issued May 19, 1987.
  • Manholes for sewers and the like are typically assembled by stacking a number of precast, cylindrical concrete barrel sections to approximately the desired height.
  • a 1-inch to 20-inch space is typically left between the manhole lid and the iron casting. Previously this space was filled with layers of bricks, which is expensive and time consuming.
  • the apparatus disclosed in United States patent no. 4,666,333 provides a two-piece form, consisting of an inner and outer sleeve, which replaces the brick and mortar method.
  • the inner sleeve consists of a single planar plastic piece joined end-to-end to form a cylinder which is expandable by means of turnbuckle-type expansion mechanisms.
  • the outer sleeve is in the form of a belt with a receptacle at one end through which the other end passes and is secured to form a cylinder.
  • the inner sleeve is first expanded into the manhole opening and set to the required slope.
  • the casting is mounted on the inner sleeve, and the outer sleeve, which has a diameter greater than that of the base of the casting, is placed around the casting. Concrete is then poured between the inner and outer sleeves and up over the base of the casting. After the concrete has set the sleeves are removed.
  • the previous casting positioning apparatus incorporated a number of turnbuckles in connection with the inner sleeve (to tighten the sleeve against the manhole) which were time consuming to adjust and relatively expens ⁇ ive to manufacture. Also there was a possibility of leakage of water through the inner form of the prior device.
  • a casting positioning apparatus which is simpler, more easily adjustable prior to pouring of the concrete, and provides a leak-proof inner surface is therefore desired.
  • the invention therefore provides a method of cementing a casting on a manhole lid opening comprising the steps of: a) providing a cylindrical inner sleeve having upper and lower edges and a circumferential flange on said upper edge; b) sliding a rubber ring on the inner sleeve, the rubber ring having an inner diameter less than the outer diameter of the cylinder and an outer diameter greater than the manhole; c) placing said inner sleeve on the manhole lid with the rubber ring resting on the upper surface of the manhole lid and applying pressure to the upper edge of the inner sleeve to thereby slide the sleeve to the desired height relative to the manhole lid; d) tightening the rubber ring against the inner sleeve; e) placing the casting on the upper edge of the inner sleeve; f) providing an outer cylindrical sleeve having a diameter greater than the diameter of the casting around the casting; and g) pouring concrete into the space formed between the inner slee
  • Fig. 1 is a perspective view of the inner sleeve of the inventor's prior apparatus as disclosed in U.S. patent no. 4,666,333;
  • Fig. 2 is a perspective view of the outer sleeve of the inventor's prior apparatus as disclosed in U.S. patent no. 4,666,333
  • Fig. 3 is a perspective view of the inventor's apparatus as disclosed in U.S. patent no. 4,666,333 installed on a manhole lid opening with a casting in place on the inner sleeve, and the outer sleeve in place;
  • Fig. 4 is a perspective view of the inner sleeve of the present invention.
  • Fig. 5 is a perspective view of the rubber ring and hose clamp of the present invention partly cut away to show a cross-section,-
  • Fig. 6 is a perspective view showing the inner sleeve of the present invention with the rubber ring and hose clamp installed and casting in place, on a manhole lid
  • Fig. 7 is a simplified schematic view, partly in cross-section, not to scale, showing the inner sleeve of the present invention with the rubber ring and hose clamp installed and casting in place, on a manhole lid;
  • Fig. 8 is a perspective view showing the inner sleeve of the present invention with the rubber ring and hose clamp installed and casting in place, on a manhole lid;
  • Fig. 9 is a perspective view showing the fin ⁇ ished, mounted casting with the outer sleeve removed;
  • Fig. 10 is a plan view of the unassembled outer sleeve;
  • Fig. 11 is an elevation view of a second embodi ⁇ ment of the inner sleeve.
  • the inner form or sleeve 2 comprises a single piece belt-like sleeve 6.
  • An expandable gasket 14 is provided around the sleeve to grip the interior surface of the manhole lid opening.
  • Outer sleeve 30 is also in the form of a continuous belt. It is adjusted by drawing end 39 through receptacle 38 and tightening wing nuts 40.
  • Fig. 3 shows a casting 5 mounted on the inner sleeve 2 in place in a manhole lid 4, with the outer sleeve 30 in place for cement to be poured.
  • the improved inner form is shown as 50 in Figure 4. It consists of a smooth hollow tube or cylinder 52 of rigid extruded plastic such as polyethylene or polyvinyl chloride (PVC) . It has an annular flange 54 along the upper edge 55 thereof and a lower edge 56. Flange 54 extends about 4 inches (2 inches on each side) outwardly of cylinder 52 in order to support a casting whose base opening is larger than the inner sleeve diameter.
  • the upper edge 55, and thus also flange 54 is set at an angle to a plane perpendicular to the longitudinal axis of the cylinder 52. For example, for a sleeve which is 23 inches in diameter, the flange will drop about 2 inches from one side of the sleeve to the other.
  • a typical manhole lid opening is 24 inches in diameter.
  • the cylindri- cal portion of the inner sleeve for such an application will have an outer diameter of 23 inches, and flange 54 will have an outer diameter about 4 inches greater, 27 inches in this example.
  • the height on the high side of the seeve is about 22 inches and about 20 inches on the low side.
  • annular rubber ring 60 as shown in Fig. 5, formed of a flexible extruded rubber, is provided, whose inner diameter is slightly less than the diameter of the outer surface 58 of inner sleeve 50 and whose outer diam- eter is greater than that of the manhole lid opening.
  • the ring outer diameter will be about 26 inches.
  • Ring 60 is L-shaped in cross-section, typically 5/16 inches thick at the top and 1 and 1/2 inches thick at the bottom. Ring 60 is stretched slightly and slid over the smooth outer surface 58 of the cylindrical inner sleeve 52.
  • Ring 60 is of a type of rubber material such that it grips surface 58 securely when tightened by the hose clamp but permits the smooth surface 58 of cylinder 52 to slide against it when the hose clamp is not tightened.
  • the hose clamp is of standard description, consisting of a stainless steel band having a slotted end which fits into a screw shank which draws the end in and tightens the clamp when the screw is rotated.
  • the lower section 65 will be 5/8 inches high, the slot section 57 about 7/8 inches high and lip 66 about 1/8 inch high.
  • the lower end of the cylindrical inner sleeve 52 is inserted into the upper end of the manhole lid opening, and lowered until the lower surface 61 of the rubber ring 60 rests on the upper surface 42 of the manhole lid.
  • the casting is placed on the sleeve as shown in Fig. 6 and 7, and pressure can then be applied downwardly, by hand, mallet or the like, on the casting, and thus on flange 54 of the sleeve, to push it down to the desired height and slope or angle.
  • the gap A between the sleeve and the manhole lid opening permits the sloping of the sleeve to be adjusted.
  • the hose clamp 62 is then tightened by screw ⁇ driver to secure the ring 60 to the inner sleeve 50 and fix the position of the sleeve in the manhole.
  • the relative position of the sleeve 50 is marked on the manhole lid surface 42 so the sleeve can later be returned to the same position, and the casting and sleeve are removed.
  • the lower portion of the inner sleeve 50 below the ring 60 can then be cut off using a cut-off saw to eliminate any impediment this might present to a worker entering the manhole.
  • the inner sleeve 50 is then placed back on the manhole lid using the marker line to restore it to its previous position, with the rubber ring 60 resting on the manhole lid 4.
  • the casting 5 is then replaced in position on the flange 54 of the inner sleeve 50.
  • a cylindrical outer sleeve 30 is then placed around the casting and concrete poured to fill the annular space between inner and outer sleeves 50, 30. After the concrete has hardened, the outer sleeve may be removed as shown in Fig. 9, leaving hardened concrete casing 72 around casting 5.
  • a two piece outer sleeve 30 of hardboard or plastic, which is pivotally attached at either end for easy storage and packaging is preferred.
  • the outer cylindrical form can be formed of two hardboard pieces, each one 70
  • the two pieces are joined at holes 71, centrally located about 4 inches from the end of the board, by binding screws 74.
  • the binding or assembly screw has a flat head on either end, with a male end screwing into a female end ("Chicago screws") . In this way the screw heads are almost flush with the surface of the hardboard, and the entire form stacks neatly for storage and transportation. To use the form, one side is pivoted across the other until they snap out into a full circle.
  • the corners 76 of the hardboard are preferably cut off to facilitate the pivoting of the two boards.
  • An advantage of the use of the inner sleeve structure and rubber ring of the present invention is that it provides 1) a smooth leak-proof surface on the inside of the manhole entrance, formed by the inner surface of the inner sleeve; and 2) a waterproof seal is formed by the rubber ring between the inner sleeve and the ring and between the ring and the underlying manhole lid due to the weight of the casting on the sleeve and ring.
  • a planar flange is preferred for inner sleeve 50
  • a second embodiment 100 of the invention uses a bell-shaped upper flange 101 as shown in Fig. 11 which flares outwardly and upwardly to support the casting on an upper circumference 102 of greater diameter than the inner cylindrical sleeve 103.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

Appareil de positionnement de pièce de fonte et procédé de positionnement de pièce de fonte par rapport à une extrémité supérieure d'un regard. Le dispositif est constitué d'un cylindre creux rigide (52) comportant un rebord annulaire (54) s'étendant autour de la circonférence supérieure (55) de celui-ci. Le diamètre du cylindre est inférieur à celui de l'ouverture du couvercle du regard. Un anneau ou une jupe annulaire élastique en caoutchouc (60) dont le diamètre intérieur est légèrement inférieur au diamètre extérieur (58) du manchon inférieur (50) et dont le diamètre extérieur est supérieur à celui de l'ouverture du couvercle du regard est étiré autour de la surface extérieure du manchon intérieur cylindrique (50). L'extrémité inférieure du manchon intérieur cylindrique (50) est insérée dans l'extrémité supérieure du regard, et abaissée jusqu'à ce que la surface inférieure (61) de l'anneau de caoutchouc (60) vienne reposer sur le bord supérieur (42) du couvercle du regard. On applique ensuite une pression vers le bas sur le rebord (54) du manchon pour le pousser vers le bas jusqu'à obtenir la hauteur et la pente voulues. L'anneau (60) est ensuite resserré dans la position choisie au moyen d'une bande de serrage (62) et la pièce de fonte (5) est ensuite montée en position sur le rebord (54) du manchon intérieur (50). Un manchon extérieur cylindrique (30) est ensuite placé autour de la pièce de fonte (5) et du béton est versé pour remplir l'espace annulaire entre les manchons intérieur (50) et extérieur (30), pour fixer la pièce de fonte.
PCT/CA1997/000156 1996-03-05 1997-03-03 Appareil et procede ameliores de positionnement de piece de fonte WO1997033048A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU18646/97A AU1864697A (en) 1996-03-05 1997-03-03 Improved manhole casting positioning apparatus and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/611,418 US5634739A (en) 1989-09-29 1996-03-05 Manhole casting positioning apparatus and method
US08/611,418 1996-03-05

Publications (1)

Publication Number Publication Date
WO1997033048A1 true WO1997033048A1 (fr) 1997-09-12

Family

ID=24448940

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1997/000156 WO1997033048A1 (fr) 1996-03-05 1997-03-03 Appareil et procede ameliores de positionnement de piece de fonte

Country Status (3)

Country Link
AU (1) AU1864697A (fr)
CA (1) CA2220243A1 (fr)
WO (1) WO1997033048A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161985A (en) * 1997-12-11 2000-12-19 Vernon W. Hinkle Manhole collar assembly
EP1452647A1 (fr) * 2003-02-27 2004-09-01 Bernd Eberle Obturation des puits
GB2465644A (en) * 2008-11-29 2010-06-02 David Shaw Flexible plastic shuttering for manhole construction

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7977444B2 (en) 2004-03-12 2011-07-12 Basell Polyolefine Gmbh Process for polymerizaing 1-hexene or higher alpha-olefins
WO2005095468A2 (fr) 2004-03-12 2005-10-13 Basell Polyolefine Gmbh Systeme catalyseur destine a la polymerisation d'olefine
US7943716B2 (en) 2004-03-12 2011-05-17 Basell Polyolefine Gmbh Process for polymerizing 1-hexene or higher alpha-olefins
USD722678S1 (en) 2012-12-12 2015-02-17 Canada Pipe Company ULC Grate
CA2837496C (fr) 2012-12-18 2016-12-13 Canada Pipe Company ULC Mecanisme de verrouillage pour un couvercle
US9127447B2 (en) 2013-01-24 2015-09-08 Canada Pipe Company ULC Frame for an inlet of a catch basin or manhole
US9157213B2 (en) 2013-03-05 2015-10-13 Canada Pipe Company ULC Eccentric frame for an inlet of a catch basin or manhole

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4536103A (en) * 1982-09-28 1985-08-20 Prescott Everett J Adjustable manhole frame and method of construction and installation
US4666333A (en) * 1985-08-22 1987-05-19 Armstrong Ronald B Manhole casting positioning apparatus
US5492656A (en) * 1994-07-05 1996-02-20 Tracy; Mark Apparatus and method for manhole collar construction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4536103A (en) * 1982-09-28 1985-08-20 Prescott Everett J Adjustable manhole frame and method of construction and installation
US4666333A (en) * 1985-08-22 1987-05-19 Armstrong Ronald B Manhole casting positioning apparatus
US5492656A (en) * 1994-07-05 1996-02-20 Tracy; Mark Apparatus and method for manhole collar construction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161985A (en) * 1997-12-11 2000-12-19 Vernon W. Hinkle Manhole collar assembly
EP1452647A1 (fr) * 2003-02-27 2004-09-01 Bernd Eberle Obturation des puits
GB2465644A (en) * 2008-11-29 2010-06-02 David Shaw Flexible plastic shuttering for manhole construction
GB2465644B (en) * 2008-11-29 2013-03-13 David Shaw Manhole chambers

Also Published As

Publication number Publication date
CA2220243A1 (fr) 1997-09-12
AU1864697A (en) 1997-09-22

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