US3714961A - Manhole assemblies - Google Patents
Manhole assemblies Download PDFInfo
- Publication number
- US3714961A US3714961A US3714961DA US3714961A US 3714961 A US3714961 A US 3714961A US 3714961D A US3714961D A US 3714961DA US 3714961 A US3714961 A US 3714961A
- Authority
- US
- United States
- Prior art keywords
- channel
- base member
- bend
- manhole
- inflow
- 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
- 230000000712 assembly Effects 0.000 title description 3
- 238000000429 assembly Methods 0.000 title description 3
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
- E03F5/021—Connection of sewer pipes to manhole shaft
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
-
- 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
- Y10T137/6851—With casing, support, protector or static constructional installations
- Y10T137/6966—Static constructional installations
- Y10T137/6991—Ground supporting enclosure
-
- 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
- Y10T403/00—Joints and connections
- Y10T403/61—Side slide: elongated co-linear members
Definitions
- a preformed manhole base member comprises a bot tom and integral side members.
- the bottom has a main outlet channel extending to an outlet orifice in one side member.
- the bottom and at least one other of the side members have locating means such as grooved portions for receiving cooperating locating means such as flanges on inflow channel bends so that correct location of an inflow bend with respect to the main outlet channel is obtained.
- This invention relates to manhole assemblies for use in underground drainage systems.
- manhole assemblies have a main outlet channel which leads to an outlet pipe and a plurality of inflow branch channels feeding the main outlet channel and leading from branch pipes.
- straight branch pipes In order to provide a wide range of entries of straight branch pipes to the manhole it is customary to provide a range of channel bends of different angular configurations for forming the inflow branch channels so that the required unimpeded flow of liquid and entrained solids into the main channel is obtained.
- the use of straight branch pipes also facilitates their cleaning.
- the object of this invention is to minimize the extent of this time consuming process without detriment to the flexibility of manhole design in providing a wide range of entries for the branch pipes. 7
- a preformed manhole base member comprising a bottom and integral side members, the bottom having a main outlet channel extending to an outlet orifice in one side member, and the bottom and side members having locating means for inflow channel bends such that correct location of an inflow bend with respect to the main outlet channel is obtained.
- the channel bends may be provided with locating flanges, one engaging in the locating means of a side member and the other engaging in locating means at the edge of the main outlet channel.
- the channel bends may be provided with edges which extends to provide a screeding edge to enable any necessary benching to be carried out simply by a screeding process.
- a plurality of interfitting manhole sections may be provided which are disposed one above the other on the base member.
- FIG. 1 is a partly broken-away perspective view of the base member of the first construction
- FIG. 2 is a scrap section of the base member at the outlet orifice
- FIG. 3 is a sectional elevation of a completed manhole using the base member of FIG. 1, and
- FIG. 4 is a view similar to FIG. 1 of the base member ofthe second construction.
- the manhole assembly has a concrete base member 1 which is of rectangular trayshape and has bottom 2, opposite side walls, referred to hereinafter as end walls 3, and opposite side walls 4.
- the base member 1 is laid on a gravel foundation 1].
- a main outlet channel 5 is formed in the bottom of the base member 1 and provides a through-flow from main inlet orifice 6 in one end wall 3 to main outlet orifice 7 in the other end wall 3.
- the orifices 6 and 7, as can be seen from FIG. 2, are formed as sockets for receiving spigots of inlet and outlet pipes 8 and 9 ( Figure 3), a sealing ring 10 being fitted on the pipes and locating against the internal-shoulders formed in the sockets 6 and 7.
- inlet and outlet orifices 6 and 7 are in the latter case formed separately from the base member and are slid into position down the openings in the end walls 3 so that flanges 13 at their edges locate in the slots 12 in the base member 1.
- the opposite side walls 4 of the base member 1 are cut away so that each can be fitted with a plurality of .channel bends to provide the requisite inflow branch channels to the main outlet channel 5.
- the channel bend 15 is formed from moulded plastics material and has at its inlet end a socket 16 for receiving a branch pipe with interfltting sealing ring in substantially the same manner as the pipes 8 and 9 are received in the orifice 6 and 7. From the socket 16 channel 17 curves in known manner and changesfrom a curved cross-section at 18 to a substantially rectangular cross-section at 19. In order to accurately locate the channel bend 15 on the base member 1 it is provided with webs 20 and 22 which locate in groves 23 and 24 respectively in the base member 1.
- the edges 25 and 26 of the channel bends 15 extend to form edges for guiding a levelling and tamping board, so that the skill required for benching is minimized by making it mainly a screeding process.
- Holes 28 are provided in the outwardly extending webs 29 of the channel bend for keying with the concrete during benching.
- a preformed manhole base member comprising a bottom and integral side members, the bottom having a main outlet channel extending to an outlet orifice in one side member, and the bottom and at least one other of the side members having locating means for inflow channel bends such that correct location of an inflow bend with respect to the main outlet channel is obtained.
- a manhole base member as claimed in claim 1, wherein the locating means for each channel bend comprises grooved portions which are adapted to receive flanges of the channel bend.
- a manhole base member as claimed in claim 1, wherein said outlet orifice comprises a separately formed socket member which is slid into position down an opening extending from the top of said one side member and which has a flange locating in a groove in the base member.
- a manhole comprising a manhole base member as claimed in claim 1 and a plurality of interfitting man- 5 ,hole sections disposed one above the other on the base member.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Water Supply & Treatment (AREA)
- Public Health (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Sewage (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
A preformed manhole base member comprises a bottom and integral side members. The bottom has a main outlet channel extending to an outlet orifice in one side member. The bottom and at least one other of the side members have locating means such as grooved portions for receiving cooperating locating means such as flanges on inflow channel bends so that correct location of an inflow bend with respect to the main outlet channel is obtained.
Description
United States Patent [1 1 Davidson et al.
Feb. 6, 1973 MANHOLE ASSEMBLIES inventors: Alastair Ritchie Davidson; Eric Robert Percival, both of London, England Assignee: Reed International Limited, London, England Filed: Oct. 15, 1971 Appl. No: 189,668
Foreign Application Priority Data Oct. 28, I970 Great Britain ..5 1,237/70 vs. C] "137/363, 285/325 Int. Cl. ..E02d 29/00 Field of Search ..l37/363; 52/19 20, 21;
[56] References Cited UNITED STATES PATENTS 3,562,969 2/l97l Little ..l37/363 X Primary Examiner-Henry T. Klinksiek Attorney-Sommers & Young [57 ABSTRACT A preformed manhole base member comprises a bot tom and integral side members. The bottom has a main outlet channel extending to an outlet orifice in one side member. The bottom and at least one other of the side members have locating means such as grooved portions for receiving cooperating locating means such as flanges on inflow channel bends so that correct location of an inflow bend with respect to the main outlet channel is obtained.
7 Claims, 4 Drawing Figures MANHOLE ASSEMBLIES This invention relates to manhole assemblies for use in underground drainage systems. Such manhole assemblies have a main outlet channel which leads to an outlet pipe and a plurality of inflow branch channels feeding the main outlet channel and leading from branch pipes.
In order to provide a wide range of entries of straight branch pipes to the manhole it is customary to provide a range of channel bends of different angular configurations for forming the inflow branch channels so that the required unimpeded flow of liquid and entrained solids into the main channel is obtained. The use of straight branch pipes also facilitates their cleaning.
In the past it has been necessary to first form a concrete support base for the manhole and then by a time consuming and expensive process of pipe fitting, bricklaying, cement infllling and benching or haunching to build up the manhole assembly. The object of this invention is to minimize the extent of this time consuming process without detriment to the flexibility of manhole design in providing a wide range of entries for the branch pipes. 7
According to this invention there is provided a preformed manhole base member comprising a bottom and integral side members, the bottom having a main outlet channel extending to an outlet orifice in one side member, and the bottom and side members having locating means for inflow channel bends such that correct location of an inflow bend with respect to the main outlet channel is obtained.
Thus the channel bends may be provided with locating flanges, one engaging in the locating means of a side member and the other engaging in locating means at the edge of the main outlet channel.
The channel bends may be provided with edges which extends to provide a screeding edge to enable any necessary benching to be carried out simply by a screeding process.
In order to complete the manhole to the desired height a plurality of interfitting manhole sections may be provided which are disposed one above the other on the base member.
In order that the invention may be readily understood, two constructions of manhole assembly in accordance with the invention will now be described by way of example with reference to the accompanying drawings, in which:
FIG. 1 is a partly broken-away perspective view of the base member of the first construction FIG. 2 is a scrap section of the base member at the outlet orifice,
FIG. 3 is a sectional elevation of a completed manhole using the base member of FIG. 1, and
FIG. 4 is a view similar to FIG. 1 of the base member ofthe second construction.
Referring to the drawings the manhole assembly has a concrete base member 1 which is of rectangular trayshape and has bottom 2, opposite side walls, referred to hereinafter as end walls 3, and opposite side walls 4. In use the base member 1 is laid on a gravel foundation 1]. A main outlet channel 5 is formed in the bottom of the base member 1 and provides a through-flow from main inlet orifice 6 in one end wall 3 to main outlet orifice 7 in the other end wall 3. The orifices 6 and 7, as can be seen from FIG. 2, are formed as sockets for receiving spigots of inlet and outlet pipes 8 and 9 (Figure 3), a sealing ring 10 being fitted on the pipes and locating against the internal-shoulders formed in the sockets 6 and 7. The only difference between the base member 1 of FIG. I and that of FIG,. 4 is that the inlet and outlet orifices 6 and 7 are in the latter case formed separately from the base member and are slid into position down the openings in the end walls 3 so that flanges 13 at their edges locate in the slots 12 in the base member 1. The opposite side walls 4 of the base member 1 are cut away so that each can be fitted with a plurality of .channel bends to provide the requisite inflow branch channels to the main outlet channel 5.
One form of channel bend 15 and its manner of fitting to the base member 1 will now be described with particular reference to FIG. 4. The channel bend 15 is formed from moulded plastics material and has at its inlet end a socket 16 for receiving a branch pipe with interfltting sealing ring in substantially the same manner as the pipes 8 and 9 are received in the orifice 6 and 7. From the socket 16 channel 17 curves in known manner and changesfrom a curved cross-section at 18 to a substantially rectangular cross-section at 19. In order to accurately locate the channel bend 15 on the base member 1 it is provided with webs 20 and 22 which locate in groves 23 and 24 respectively in the base member 1.
After fitting of the appropriate number of channel bends in the side walls 4, the necessary infllling and benching is'carried out. To facilitate the benching the edges 25 and 26 of the channel bends 15 extend to form edges for guiding a levelling and tamping board, so that the skill required for benching is minimized by making it mainly a screeding process. Holes 28 are provided in the outwardly extending webs 29 of the channel bend for keying with the concrete during benching.
To complete the manhole a plurality of sections 30 are built up on the base member 1 as shown in FIG. 3, these interfltting through tongues 31 and groove 32.
We claim:
1. A preformed manhole base member comprising a bottom and integral side members, the bottom having a main outlet channel extending to an outlet orifice in one side member, and the bottom and at least one other of the side members having locating means for inflow channel bends such that correct location of an inflow bend with respect to the main outlet channel is obtained.
2. A manhole base member as claimed in claim 1, wherein the locating means for each channel bend comprises grooved portions which are adapted to receive flanges of the channel bend.
3. A manhole base member as claimed in claim 2, wherein said grooved portions extend along said other side member and along the edge of the main outlet channel.
4. A manhole base member as claimed in claim 1, wherein said outlet orifice comprises a separately formed socket member which is slid into position down an opening extending from the top of said one side member and which has a flange locating in a groove in the base member.
5. An assembly of a manhole base member as claimed in claim 1 and at least one separately formed channel bend locating in said locating means.
6. An assembly as claimed in claim 5, wherein said channel bend has transversely extending flanges locating in said locating means.
7. A manhole comprising a manhole base member as claimed in claim 1 and a plurality of interfitting man- 5 ,hole sections disposed one above the other on the base member.
Claims (7)
1. A preformed manhole base member comprising a bottom and integral side members, the bottom having a main outlet channel extending to an outlet orifice in one side member, and the bottom and at least one other of the side members having locating means for inflow channel bends such that correct location of an inflow bend with respect to the main outlet channel is obtained.
1. A preformed manhole base member comprising a bottom and integral side members, the bottom having a main outlet channel extending to an outlet orifice in one side member, and the bottom and at least one other of the side members having locating means for inflow channel bends such that correct location of an inflow bend with respect to the main outlet channel is obtained.
2. A manhole base member as claimed in claim 1, wherein the locating means for each channel bend comprises grooved portions which are adapted to receive flanges of the channel bend.
3. A manhole base member as claimed in claim 2, wherein said grooved portions extend along said other side member and along the edge of the main outlet channel.
4. A manhole base member as claimed in claim 1, wherein said outlet orifice comprises a separately formed socket member which is slid into position down an opening extending from the top of said one side member and which has a flange locating in a groove in the base member.
5. An assembly of a manhole base member as claimed in claim 1 and at least one separately formed channel bend locating in said locating means.
6. An assembly as claimed in claim 5, wherein said channel bend has transversely extending flanges locating in said locating means.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5123770A GB1298485A (en) | 1970-10-28 | 1970-10-28 | Improvements in or relating to manhole assemblies |
Publications (1)
Publication Number | Publication Date |
---|---|
US3714961A true US3714961A (en) | 1973-02-06 |
Family
ID=10459195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US3714961D Expired - Lifetime US3714961A (en) | 1970-10-28 | 1971-10-15 | Manhole assemblies |
Country Status (7)
Country | Link |
---|---|
US (1) | US3714961A (en) |
CA (1) | CA945392A (en) |
CH (1) | CH548497A (en) |
DE (1) | DE2152952A1 (en) |
FR (1) | FR2113250A5 (en) |
GB (1) | GB1298485A (en) |
ZA (1) | ZA716950B (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5538035A (en) * | 1995-02-17 | 1996-07-23 | Gavin; Norman W. | Plastic fluid distribution box with integrally fastened seal |
US5655564A (en) * | 1995-02-17 | 1997-08-12 | Gavin; Norman W. | Septic system plastic distribution box with integrally fastened seal |
US6135141A (en) * | 1999-12-14 | 2000-10-24 | Bombach; Ken | Low profile high capacity inside drop for a manhole |
FR2851271A1 (en) * | 2003-02-13 | 2004-08-20 | Pascal Louis | Connection box for hydraulic pipes, has shutter to delimit two circular openings for housing pipes and body with two cooperating parts, which delimits one of openings very close to bottom to form lower half of opening |
US9109342B1 (en) * | 2009-12-23 | 2015-08-18 | Monobend Technologies LLC | Manhole |
US10704277B1 (en) * | 2017-01-25 | 2020-07-07 | S & M Precast, Inc. | Flow channel form design for manhole assemblies |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2509343A1 (en) * | 1981-07-10 | 1983-01-14 | Seperef | Sewer system inspection point - comprises semi-rigid plastics element which secure together to form sealed chamber |
GB2149064A (en) * | 1983-11-01 | 1985-06-05 | Brickhouse Dudley Mfg | Valve housing |
EP0692583A3 (en) * | 1994-07-06 | 1997-01-02 | Ahlmann Aco Severin | Inlet device for drainage gutter system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3562969A (en) * | 1968-10-22 | 1971-02-16 | Howell P Little Jr | Sectional catch basin |
-
1970
- 1970-10-28 GB GB5123770A patent/GB1298485A/en not_active Expired
-
1971
- 1971-10-15 US US3714961D patent/US3714961A/en not_active Expired - Lifetime
- 1971-10-18 ZA ZA716950A patent/ZA716950B/en unknown
- 1971-10-18 CA CA125,455A patent/CA945392A/en not_active Expired
- 1971-10-23 DE DE19712152952 patent/DE2152952A1/en active Pending
- 1971-10-26 CH CH1559471A patent/CH548497A/en not_active IP Right Cessation
- 1971-10-26 FR FR7138406A patent/FR2113250A5/fr not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3562969A (en) * | 1968-10-22 | 1971-02-16 | Howell P Little Jr | Sectional catch basin |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5538035A (en) * | 1995-02-17 | 1996-07-23 | Gavin; Norman W. | Plastic fluid distribution box with integrally fastened seal |
US5655564A (en) * | 1995-02-17 | 1997-08-12 | Gavin; Norman W. | Septic system plastic distribution box with integrally fastened seal |
US6135141A (en) * | 1999-12-14 | 2000-10-24 | Bombach; Ken | Low profile high capacity inside drop for a manhole |
FR2851271A1 (en) * | 2003-02-13 | 2004-08-20 | Pascal Louis | Connection box for hydraulic pipes, has shutter to delimit two circular openings for housing pipes and body with two cooperating parts, which delimits one of openings very close to bottom to form lower half of opening |
US9109342B1 (en) * | 2009-12-23 | 2015-08-18 | Monobend Technologies LLC | Manhole |
US10704277B1 (en) * | 2017-01-25 | 2020-07-07 | S & M Precast, Inc. | Flow channel form design for manhole assemblies |
US11208816B1 (en) | 2017-01-25 | 2021-12-28 | S & M Precast, Inc. | Flow channel form design for manhole assemblies |
Also Published As
Publication number | Publication date |
---|---|
ZA716950B (en) | 1972-06-28 |
GB1298485A (en) | 1972-12-06 |
CH548497A (en) | 1974-04-30 |
DE2152952A1 (en) | 1972-05-31 |
CA945392A (en) | 1974-04-16 |
FR2113250A5 (en) | 1972-06-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CARADON TERRAIN LIMITED, ENGLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:REED INTERNATIONAL PLC;REEL/FRAME:004891/0103 Effective date: 19870109 Owner name: CARADON TERRAIN LIMITED, AYLESFORD, MAIDSTONE, KEN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:REED INTERNATIONAL PLC;REEL/FRAME:004891/0103 Effective date: 19870109 |