US3252198A - Cleanout device for continuous concrete pipe laying machine - Google Patents
Cleanout device for continuous concrete pipe laying machine Download PDFInfo
- Publication number
- US3252198A US3252198A US340715A US34071564A US3252198A US 3252198 A US3252198 A US 3252198A US 340715 A US340715 A US 340715A US 34071564 A US34071564 A US 34071564A US 3252198 A US3252198 A US 3252198A
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- US
- United States
- Prior art keywords
- pipe
- machine
- guide portion
- core
- concrete
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
- F16L1/038—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being made in situ
Definitions
- This invention pertains to improvements in a continuous concrete pipe laying machine as covered in my United States Patent No. 2,969,576, issued January 31, 1961.
- One of the objects of this invention is to provide im-- provements in a machine for continuously forming a pipe of concrete in a previously dug trench.
- Another object is to provide improvements in a continuous concrete pipe laying machine which travels along in a trench and which receives the plastic concrete mud and automatically forms a continuous pipe thereof in the bottom of the trench as the machine is moved along in the trench.
- Still another object is to provide improvements in a continuous concrete pipe laying machine having a special and superior means for presenting a continuous collapsible core in inflatable position in the formed pipes as the machine progresses along the trench.
- a further object is to provide improvements in a continuous pipe laying machine adapted to small as well as large pipe in which a continuous inflatable inner core is automatically presented in the poured pipe and which core can be deflated and released from the pipe bore after the concrete has set up by release of air pressure from one end of the finished pipe line without the necessity of a person crawling into the pipe to release said core.
- a still further object is to provide improvements in a pipe casting machine utilizing a continuous inflated inner core which may be deflated from outside of the cast pipe without the necessity of using any spreaders or braces manually placed in the inner core as in former devices.
- the lower half of the pipe is poured independent of the collapsible inner core following which step the top half of the pipe is poured on the top half of said inner core while it is supported on its lower half and then slid off on the bottom half of the bore of the case pipe.
- a further object of this invention is to provide a cleanout device in connection with the above recited continuous concrete pipe laying machine so that excess concrete remaining in the pipe forming portions of the machine may be discharged therefrom before the concrete has an opportunity to set up and harden in the machine mechanism.
- an object is also to locate vibrator mechanisms at critically placed positions relative to the concrete feeding and finishing elements of the machine.
- FIG. 1 is a left hand side elevation of a continuous concrete pipe laying machine incorporating the features of this invention.
- FIG. 2 is a plan view of the machine shown in FIG. 1.
- FIG. 3 is a front end elevation of the machine indicated by the line 3-3 in FIG. 1.
- FIG. 4 is a rear end elevation of the machine indicated by the line 44 of FIG. 1.
- FIG. 5 is a vertical transverse section on the line 5-5 of FIG. 1.
- FIG.- 6 is an enlarged fragmentary section on the line 66 of FIG. 5.
- FIG. 7 is an enlarged fragmentary vertical longitudinal section on the line 7-7 of FIGS. 2, 3 and 4.
- FIG. -8 is a perspective view of the continuous inflatable sectional core.
- FIG. 9 is an enlarged broken section of the pneumatically inflated core on the line 9a9a of FIG. 8.
- a predug ditch having an arcuate bottom 10 shaped to conform to the outside of the lower half 11 of the cast pipe, and having vertically disposed parallel sides 12 and 13 extending upwardly to ground level 14.
- the machine comprises a guide portion 15 having a semi-cylindrical bottom 16 and upstanding sides 17 and 18 slidingly engaging the bottom and sides of the pre-dug ditch.
- a laterally disposed vertical baflle 19 To the rear end of the guideportion 15 is fixed a laterally disposed vertical baflle 19.
- a hitch connection 20 to which a towing cable 21 may be attached for pulling the machine along in the ditch during the pipe laying operation.
- edge 22 of the guide portion 15 is turned inwardly at 23 to facilitate sliding of the device in the ditch without picking up dirt from the sides and bottom of the ditch.
- the core support rollers 24 Fixed to but spaced from the semi-cylindrical bottom 16 of the guide portion 15 is the core support rollers 24 having an arcuate arrangement, FIG. 3, conforming to the lower half 25 of the bore of the completed pipe. It will be noted that the core support rollers 24 are disposed from the front edge 22 of the guide portion 15 rearwardly toward the baflle 19 where there is provided a circular opening 26 conforming to the outside diameter of the core member 43.
- the bottom surface 28 of a coresupport member 24a extending rearwardly of the bafile 19 to the edge 27a is spaced from the bottom 10 of the pre-dug ditch so as to form the desired thickness for the bottom half of the pipe and to effectively trowel the lower half of the pipe bore as the machine travels along the ditch.
- the core support member 24a extends through the opening 26 and terminates in an outwardly sloping lip 36 to facilitate placement of the core 43 in the machine.
- a hopper 29 comprising the sides 30 and 31 fixed to and extending rearwardly of the bafl le 19 and connected at their rear edges to the rear transverse baffle 32.
- Rigidly fixed to and extending rearwardly from the rear transverse bafile 32 is the semi-cylindrical top trowelling member 33 having its inner concave surface 34 positioned to form the outside surface 35 of the top half of the pipe, the member 33 extending rearwardly to the rear end 27 of the machine.
- the rear transverse bafile 32 extends downwardly and terminates at the lower edges 37 of the top trowelling member 33 and has an arcuate cut-out passageway 38 conforming to the inner concave surface 34 of the top trowelling member.
- the front air supply pipe 68 It will be noted that the front edge 27b of the top trowelling member 33 is fixed to the vertically movable plate 32a having its side vertical edges suitably supported in vertical guideways 32b fixed to the rear ends of the sides 30 and 31. Suitable stabilizing rods and turnbuckles 55 may be provided between the upper portions of the vertically movable plate 32a and the outer rear cross member 32f fixed to the top rear edge of the hopper and rear transverse baflle 32 so that by manipulating the handwheel 32d the top trowelling member 33 may be vertically adjusted to vary the thickness of the top half of the pipe during the horizontal travel of the machine in laying the pipe.
- top pipe sections can be easily provided as the machine crosses roads or other areas requiring greater strength for the pipe while the top section can be readily thinned by lowering the trowelling member 33 for areas not requiring high load capacity, any such adjustment being undertaken with the machine in actual operation.
- transverse partition 39 having forwardly and rearwardly sloping plates 39a and 39b rigidly fixed to the sides and 31 of the hopper 29.
- This partition 39 has a semi-circular cut-out 40 in the lower edges of the plates 39a and 3% just slightly larger than the bore of the pipe which engages the upper half portion 42 of the pneumatically inflatable core members 43 to prevent flow of liquid cement through the cut-outs 40; the partition 39 terminating at its lower edge 44 with this portion of the sides 30 and 31 of the hopper.
- baffle 19 and the partition 39 Between the baffle 19 and the partition 39 is fixed a pair of divergently sloping plates 45 and 46, FIG. 5, connected together at an apex 47 and extending downwardly and merging with side plates 48 and 49 whoselower edges are rigidly fixed to the upper edges of the core support member 24a at the points 50 so as to form a completely enclosed tunnel between the bafile 19 and the partition 39 for relative sliding of the core member 43 therethrough as the machine travels along the ditch.
- the rear end of the guide portion 15 slopes upwardly as indicated at 51, 52, 53 and 54 to aid in the distribution and smooth flow of the concrete under the core support member into the lower half of the ditch.
- a continuous pneumatically supported core apparatus 43 which relatively slides along on the rollers 24 and the concave upper surface of core support member 24a.
- This core apparatus comprises a rubber or plastic tube 56, FIG. 9, which may be collapsed and rolled up for easy handling or storage and which is closed on one end by a suitable header 57 having eyelet lugs 58 fixed to the outside face thereof for securing the core against longitudinal movement in the ditch during the pipe laying operations.
- the other end of the tube 56 has the supply headers 59 fixed therein to which is connected the having a shut-off valve 61- to which is connected the fluid pressure supply pipe 62.
- a suitable pressure gauge 63 may be mounted on the supply header 59 so as to indicate the inflation pressure in the tube 56.
- plastic concrete of suitable consistency and body is supplied at 78 filling the front compartment 79 and the rear compartment 80 of the hopper 29.
- the supply of material from the front compartment 79 flows down the sloping plates 45 and 46 in .the bottom thereof and then down between the sides 30 and 31 of the hopper and the side plates 48 and 49 to fill the space between the bot-tom 10 of the ditch and the bottom surface 28 of the core support member 24a, the lower edges 44- of the partition 39 screeding off the material as the machine is pulled along in the ditch to complete the lower half of the pipe.
- the material is being presented directly against the top half 42 of the core 43 as it emerges from the cutout 40 and also against the top edges of the material just poured forming the lower half of the pipe.
- the core 43 is guided smoothly into the machine by the rollers 24 and outwardly sloping lip 36 on the leading edge of the upper concave surface 77 of the core support member 24a.
- the edge 81 of the top trowelling member screeds off the top outside surface of the upper half of the poured pipe while the top trowelling member completes this surface to proper finish and thickness depending upon its setting by handwheel 23d, thus completing the pipe structure.
- the core 43 As the core 43 relatively passes out from the rear end 27a of the core support member 24a, it comes in contact with and rests on the bottom trowelled bore portion of the poured pipe and thereby supports the upper portion of the poured pipe until it has set, ready to deflate and remove the core 43.
- suitable agitators or tampers may be utilized.
- Such tamping devices may comprise the downwardly extending tamper bars 82 and 83 which are rigidly fixed to the vertically reciprocatable yoke bars 84 connected together by the lateral bar 85 mounted on a suitable guide rod 86 vertically slidable in the guide bore 87 in the bracket 88 fixed to the baflle 19.
- a suitable drive motor 89, FIG. 1, mounted on the baffle 19 has an output shaft 90 and a sprocket 91 over which operates a chain 92 which in turn drives a sprocket 93 fixed to a-crankshaft 94 journaled in a bracket 95 suitably fixed to the baflle 19.
- the other end of the crankshaft 94 has a disc 96 fixed thereto and a crankpin 97 on said disc which is pivotally connected by a link 98 to the lateral bar 85 so that operation of the motor 89 effects vertical reciprocation of the tamper bars 82 and 83.
- the tamper bars 82 have tamping feet 99 located in the space between sides 30 and 31 of the hopper and the side plates 48 and 49 to facilitate the firm compaction of the concrete in the lower half 11 of the pipe while the tamper bars 83 have tamping feet 99a on their lower ends located between the sides 30 and 31 of the hopper and the upper half 4-2 of the core emerging from the partition 39 so as to get good compaction of the concrete for the upper half of the pipe.
- Suitable electrical control devices 100, 101 and 102. may be utilized to control the operation of the motor 89 for actuating the tampers 82 and 83 at the desired speed.
- a vibrator 103 fixed to the top front portion of the top trowelling member closely adjacent the vertically movable plate to affect the proper trowelling effect on the top section of the finished pipe.
- a further vibrator 104 is fixed to the vibrator bridge 105 in turn supported at its ends 106 on the side plates 48 and 49 to facilitate flow of concrete at the point of merging of concrete flowing from the hopper compartments into the bottom half and the top half of the concrete pipe being formed. Both of the vibrators 103 and 104 may be appropriately operated from the electrical control devices 100, 181 and 102.
- Means are provided for evacuating concrete from the space between the bottom surface 28 of the core support member and the inside of the rear end of the guide portion 51, 52, 53 and 54, immediately behind the transverse baflie 19.
- a semicircular flat push-out ring 107 which is mounted on the outer ends 108 of the piston rods 109 of the push-out cylinders 110 extending through the baflie 19, the cylinders being fixed to the semi-cylindrical bottom 16 of the guide portion 15 in front of the baffle 19.
- a suitable source of fluid pressure controlled by the usual reversing valve, not shown, is connected to reciprocate the piston rods 109 and the push-out ring 167.
- the push-out ring is retracted up against the rear face of the laterally disposed vertical bafile 19.
- the cylinders 110 are energized to push the ring 107 rearwardly to the position 107a. This discharges the trapped concrete from the machine when it is pulled ahead of the completed end of the pipe and without having to remove the core and the machine from the trench at the end of the day or when long periods of delay intermediate the ends of the core are required.
- setting up of concrete in this otherwise critical and inaccessible area of the machine can be'avoided.
- a cleanout device for a continuous concrete pipe laying machine having:
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US340715A US3252198A (en) | 1964-01-28 | 1964-01-28 | Cleanout device for continuous concrete pipe laying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US340715A US3252198A (en) | 1964-01-28 | 1964-01-28 | Cleanout device for continuous concrete pipe laying machine |
Publications (1)
Publication Number | Publication Date |
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US3252198A true US3252198A (en) | 1966-05-24 |
Family
ID=23334631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US340715A Expired - Lifetime US3252198A (en) | 1964-01-28 | 1964-01-28 | Cleanout device for continuous concrete pipe laying machine |
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US (1) | US3252198A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4017226A (en) * | 1971-07-20 | 1977-04-12 | Long Joe E | Apparatus for lining a continuous concrete pipe |
US4093409A (en) * | 1975-06-25 | 1978-06-06 | Donovan Construction Company | In situ concrete pipe forming machine |
US4100751A (en) * | 1977-01-31 | 1978-07-18 | Thomason Larry V | Continuous concrete pipe laying machine |
US4564314A (en) * | 1984-04-23 | 1986-01-14 | Fullerform, Inc. | Self-propelled continuous concrete pipe-laying machine |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US288033A (en) * | 1883-11-06 | Calvin detrick | ||
US2707422A (en) * | 1953-02-16 | 1955-05-03 | E L Hardin Associates Inc | Curb laying machine |
US2968081A (en) * | 1955-10-24 | 1961-01-17 | Plasti Con Pipe Co | Apparatus for encasing metal pipe in concrete |
US2969576A (en) * | 1958-11-12 | 1961-01-31 | Fullerform Continuous Pipe Cor | Continuous concrete pipe laying machine |
US3032852A (en) * | 1960-03-14 | 1962-05-08 | First Nat Bank | Machine for laying jointless concrete pipe |
US3143781A (en) * | 1961-02-13 | 1964-08-11 | Kalns Arvids | Concrete slab forming machine |
US3181222A (en) * | 1962-09-27 | 1965-05-04 | Percy W Palmer | Machine for manufacture of prestressed concrete conduit |
-
1964
- 1964-01-28 US US340715A patent/US3252198A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US288033A (en) * | 1883-11-06 | Calvin detrick | ||
US2707422A (en) * | 1953-02-16 | 1955-05-03 | E L Hardin Associates Inc | Curb laying machine |
US2968081A (en) * | 1955-10-24 | 1961-01-17 | Plasti Con Pipe Co | Apparatus for encasing metal pipe in concrete |
US2969576A (en) * | 1958-11-12 | 1961-01-31 | Fullerform Continuous Pipe Cor | Continuous concrete pipe laying machine |
US3032852A (en) * | 1960-03-14 | 1962-05-08 | First Nat Bank | Machine for laying jointless concrete pipe |
US3143781A (en) * | 1961-02-13 | 1964-08-11 | Kalns Arvids | Concrete slab forming machine |
US3181222A (en) * | 1962-09-27 | 1965-05-04 | Percy W Palmer | Machine for manufacture of prestressed concrete conduit |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4017226A (en) * | 1971-07-20 | 1977-04-12 | Long Joe E | Apparatus for lining a continuous concrete pipe |
US4093409A (en) * | 1975-06-25 | 1978-06-06 | Donovan Construction Company | In situ concrete pipe forming machine |
US4100751A (en) * | 1977-01-31 | 1978-07-18 | Thomason Larry V | Continuous concrete pipe laying machine |
US4564314A (en) * | 1984-04-23 | 1986-01-14 | Fullerform, Inc. | Self-propelled continuous concrete pipe-laying machine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ESTATE OF JOE E. LONG (DANIEL LONG, ADMINISTRATOR) Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:FULLER, REVILO, BUD;REEL/FRAME:003981/0493 Effective date: 19811223 |
|
AS | Assignment |
Owner name: FULLERFORM COMPNY, PHOENIX, AZ. A LIMITED PARTNERS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:LONG, DANIEL R., ADMINISTRATOR OF THE ESTATE OF JOE E. LONG DEC D.;REEL/FRAME:004048/0977 Effective date: 19820112 Owner name: LOND, DANIEL R., ADMINISTRATOR OF THE ESTATE OF LO Free format text: LETTERS OF ADMINISTRATION;ASSIGNOR:ORANGE COUNTY SUPERIOR COURT FOR THE ESTATE OF JOE E. LONG DEC D.;REEL/FRAME:004048/0980 Effective date: 19790814 Owner name: FULLERFORM COMPNY, A LIMITED PARTNERSHIP ARIZONA, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LONG, DANIEL R., ADMINISTRATOR OF THE ESTATE OF JOE E. LONG DEC D.;REEL/FRAME:004048/0977 Effective date: 19820112 |