US2950659A - Apparatus for positioning reinforcement mesh in concrete - Google Patents
Apparatus for positioning reinforcement mesh in concrete Download PDFInfo
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- US2950659A US2950659A US557128A US55712856A US2950659A US 2950659 A US2950659 A US 2950659A US 557128 A US557128 A US 557128A US 55712856 A US55712856 A US 55712856A US 2950659 A US2950659 A US 2950659A
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- concrete
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- mesh
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/04—Devices for laying inserting or positioning reinforcing elements or dowel bars with or without joint bodies; Removable supports for reinforcing or load transfer elements; Devices, e.g. removable forms, for making essentially horizontal ducts in paving, e.g. for prestressed reinforcements
Definitions
- This invention relates generally to apparatus for placing reinforcement steel in concrete highway slabs and more particularly it relates to apparatus for positioning reinforcement mesh in concrete at a predetermined depth Within concrete immediately after pouring thereof.
- At first method comprises placing a single concrete mixer in a given position and a bottom course of concrete is spread and struck off over an area sufficient to permit the placing of sections of reinforcing mesh. After the mesh is placed in position, additional concrete is poured to obtain a slab of desired depth.
- Another method consists in using a single mixer and moving it over an extended length of roadbed, pouring a bottom course of concrete over whatever length of roadbed may be deemed practical under existing conditions or as permitted by prescribed specifications.
- the reinforcement mesh can then be placed on the concrete and the concrete mixer may be moved back to the starting point and a second course of concrete may be poured over the reinforcement mesh.
- Still another method consists in using two concrete mixers, the first being utilized to pour a bottom course of concrete, the second mixer being placed behind the first mixer a distance sufiicient to permit the placement of the reinforcing mesh and being utilized to pour the second course of concrete.
- the principal object of this invention is to provide apparatus adapted to permit the pouring of a concrete slab to its full depth and to insert reinforcing mesh therein to a predetermined depth within the poured slab.
- Another object of this invention is to provide apparatus for placing reinforcement mesh at a predetermined depth within a poured and crowned slab of concrete.
- Still another object of this invention is to provide vibratory apparatus adapted to place reinforcement mesh at a predetermined depth within a poured concrete slab, said apparatus comprising individual and separately supported elements which may be individually adjusted to conform with the crown of the slab.
- apparatus for positioning reinforcement mesh in a poured concrete slab comprising a wheel-supported frame which may be moved along the form structure, a plurality of aligned vibratory units having horizontal sliders mounted thereon and adapted to extend into a poured concrete slab-to a predetermined depth, a rotatable lifting apparatus extending across said frame over said units, adjustable links suspending said units from said rotatable members for positioning said units to conform with the crown of said concrete slab and stop means operatively associated with the said lifting mechanism and said frame for determining the exact depth of penetration of said slider units within said concrete.
- Fig. 1 is a top plan view of the apparatus embodying this invention
- Fig. 2 is a front elevation of the apparatus
- Fig. 3 is a partial cross, section taken on line 33 of Fig. 2 and illustrating the suspension mechanism for the vibratory mesh-placing units.
- the apparatus for placing reinforcement mesh in poured concrete comprises a rectangular frame having end members 10 and side members 11. Extending between the end members 10 are two spaced rotatable shafts 14 and 15, rotatably mounted at their respective ends in sockets 16. porting hangers 17 and 18 for shafts 14 and 15 are provided on the cross beams 19 and 20.
- a plurality of individual vibrating units 22, 23, 24, and 25 are suspended from the shafts 14 and 15 by means of forward links 27 and adjustable rear links 28, the adjustable links comprising turnbuckles pivotally connected between levers 29, fixed to the rear shaft 14, and supporting arms 30 connected to the main body 31 of each vibratory unit,
- the forward links 27 are pivoted between the arms 32 fixed to forward shaft 15 and the supporting, arm 33 fixed to the main body of each vibratory unit.-
- the lower ends of each link 27 are provided with a slot' concrete.
- Pull-rods 26 may be secured as illustrated in Fig. 3 between any suitable frame member and each end of each vibratory unit such as unit 25.
- the shafts 14 and 15 includes two pairs of crank arms 38 coupled in any suitable manner to hydraulic jacks 39, pivotally mounted as at '40 tosu'pporting plates 41 'b'oltedo'r otherwise fastened to the channels 19 and 20.
- the cranks 38 rotate shafts 1 14 and 15 to lift or lower the vibratory units.
- the units may be adjusted upwardly or downwardly by means of the adjustable turunbuckles 28, each unit being adjusted in height to conform to a specified degree of crown in a highway being poured.
- stop members'42 are fixed to channels '19 in a position to cooperate with lever members 43 and 44 mounted on and fixed to shafts 14 and 15, respectively.
- Each lever arm 43, 44 is provided with adjustable screws 45 and 46 so that when the hydraulic units 39 are operated to'lower the vibratory units, screws 45 and 46 move into engagement with the stops 42 to limit the downward movement.
- screws 45 and 46 By adjusting screws 45 and 46, the'lowermost position of the vibratory units can be established and this depends on specified crown of the slab and to some extent on the specified depth to which reinforcement is to be set within the poured concrete.
- each of the vibratory units 22-45 is provided with a plurality of spaced slider elements 48, the forward ends 49 of which may have a curved profile adapted to engage
- This invention also provides apparatus for placing reinforcement mesh in poured'concrete even though the concrete surface must have a crown. This result is obtained by providing adjustable supports for the mesh vibrating units which may be utilized for supporting each of a plurality of vibrating units at a predetermined level.
- Apparatus for positioning reenforcernent mesh in a poured concrete slab comprising a supporting vehicle movable over said slab, a front and a rear rock shaft mounted in spaced parallelism transversely of and supported by said vehicle, a vibratory unit disposed beneath said shafts, horizontally disposed sliders extending down- 7 wardly from said unit in alignment with the direction the reinforcing mesh 50 for riding over the mesh and.
- Each vibratory unit includes a conventional electrically driven vibrator 51 so mounted as to provide vertical vibration to each unit.
- the frame 10--11 is provided with wheels 53 which are driven by means of a shaft 54 suitably connected to a driving engine 55 and to at least one pair of wheels 53 through the sprockets 5657 and chain 58.
- a hydraulic pump 60 may be connected to engine 55 and to the hydraulic units 39 by means of conventional hose connections 61.
- the electrical vibrator units 51 may be coupled to a motor generator 62 by means of the conductors 63.
- the adjustable vibrator unit supporting 7 links 28 may be adjusted to support the ends of the vibrator units in such a way as to conform with the specified crown in a highway. Also, the screws and 46 in the levers 43and 44 may be adjusted to hold the vibrator units at the proper level such that the sliders 48 penetrate the concrete to the depth at which it is desired to place the reinforcement mesh 5 0.
- the vibrating units After initial adjustment of the respective positions of the vibrating units, they may be lowered or lifted by means of the hydraulic units 39 controlled from the control levers of the hydraulic pump 60. With the motor 55 driving wheels 53 slowly in a -forward direction and with the generator 62 operating the vibrator motors 51, a concrete reinforcement mesh may be placed on top of poured concrete and vibrating action of each of the vibrating units 2L-25 gradually moves the mesh 50 downwardly into the concrete to a predetermined level.
- this invention provides apparatus which materially reduces the number of machines required to construct a reinforced concrete highway. This isbecause of the fact that 'the concrete maybe poured to its full depth by a single concrete mixer after which reinforcement mesh y Placed at a pe ified d p within the p red of travel of the vehicle to project into said slab, front linkage means pivotally connected between the front por tion of said vibratory unit and said front rock shaft, said linkage means including a free floating connection for permitting vertical movement of said vibrator-y unit, a rear linkage means pivotally connected to the rear portion of said vibratory unit and said rear rock shaft, said 'rear linkage means establishing a pivot for vertical rocking of said unit, means for rocking said shafts to elevate and lower said vibratory unit within predetermined limits, and draft means connected at one end .to said vibratory unit andat its opposite end to said supporting vehicle forwardly of said unit, whereby said vibratory unit rocks on said rear linkage means in a vertical direction.
- Apparatus for positioning reenforcement'mesh in a poured concrete slab comprising a supporting vehicle movable over said slab, a front and a rear rock shaft mounted in spaced parallelism transversely of and supported by said vehicle, a pair of arms projecting laterally and forwardly from said front shaft, a pair of similar arms projecting laterally and rearwardly of said rear shaft, a vibratory unit disposed beneath said shafts, 'horizontally disposed sliders extending downwardly from said unit to project into said slab and aligned with the longitudinal axis of said vehicle, a pair of adjustable supporting links pivoted at their upper ends to said rearwardly projecting arms and pivotally' connected at their opposite ends to the rear portion of said vibratory unit,
- Apparatus for positioning reenforcementmesh in a poured concrete slab comprising a supporting vehicle movable over said slab, a front and a rear rock shaft mounted in spaced parallelism transversely of and'supported'by said vehicle, a lever projecting radially of each rock shaft, a pair of arms projecting laterally and forwardly from said front shaft, a pair of similar arms projecting laterally and rearwardly of said rear shaft, a vibratory unit disposed beneath said shafts, horizontally disposed sliders extending downwardlyjfrom said unit to project into said slab and disposed in parallelism with the longitudinal axis of said vehicle, a pair of adjustable supporting links pivoted at their upper ends to said rearwardly projecting arms and pivotally connecte'dat their opposite ends to the rear portion of said vibratory unit, a pair of links pivotally connected at their upper ends each to one of said forwardly projecting arms, a pin and slot'connection between the lower endsof said 'for-.
Description
Aug. 30, 1960 E. SMILEY 2,950,659
APPARATUS FOR POSITIGNING REINFORCEMENT MESH IN CONCRETE Filed Jan, 3. 1956 2 Sheets-Sheet 1 ll!ljlllllllllllllllllli Q INVENTOR.
Aug. 30, 1960 E. I. SMILEY 2,950,659
APPARATUS FOR POSITIONING REINFORCEMENT MESH IN CONCRETE Filed Jan, 5. 1956 2 Sheets-Sheet 2 INVENTOR. ffi/RL 1," 5/471. 27
Patented Aug. 30, 1960 APPARATUS FOR POSITIONING REINFORCE- MENT MESH DJ CONCRETE Earl I. Smiley, Peru, Ind., assignor to J. C. OConnor & Sons, Incorporated, Fort Wayne, Ind., a corporation Filed Jan. 3, 1956, Ser. No. 557,128
3 Claims. (Cl. 94 39 This invention relates generally to apparatus for placing reinforcement steel in concrete highway slabs and more particularly it relates to apparatus for positioning reinforcement mesh in concrete at a predetermined depth Within concrete immediately after pouring thereof.
It is conventional practice to lay a concrete highway by running a concrete mixer along the highway and pouring the concrete on the roadbed in a continuous operation. When it is specified that steel reinforcement shall be introduced into the concrete, at first method comprises placing a single concrete mixer in a given position and a bottom course of concrete is spread and struck off over an area sufficient to permit the placing of sections of reinforcing mesh. After the mesh is placed in position, additional concrete is poured to obtain a slab of desired depth.
Another method consists in using a single mixer and moving it over an extended length of roadbed, pouring a bottom course of concrete over whatever length of roadbed may be deemed practical under existing conditions or as permitted by prescribed specifications. The reinforcement mesh can then be placed on the concrete and the concrete mixer may be moved back to the starting point and a second course of concrete may be poured over the reinforcement mesh.
Still another method consists in using two concrete mixers, the first being utilized to pour a bottom course of concrete, the second mixer being placed behind the first mixer a distance sufiicient to permit the placement of the reinforcing mesh and being utilized to pour the second course of concrete.
Conventional methods of pouring concrete for' reinforced concrete highways create substantial inefiiciencim in the building of concrete highways. Where a stationary mixer is used, it is usually located to one side of the roadbed and causes all of the activities such as pouring the concrete, placing of joints, and placing of reinforcement mesh in a confined area. As a result, efficiency and speed are sacrificed.
Where a single mixer is utilized to pour a bottom course of concrete, it is necessary that a portion of this course of concrete be subjected to the efiects of the sun while the setting process begins. This limits the amount of time within which the reinforcement mesh can be laid and the second course of concrete poured. Also, there is the additional hazard that the mixer may break down leaving a bottom course of concrete in the process of setting, without the addition of the final course of concrete. This means that the initial course of concrete may be lost and will have to be removed before the building of a highway can continue. The same type of loss can occur in the event of a sudden heavy rainfall. There is also time lost in shifting the mixer back to pour a V final course of concrete.
When two mixers are used, the amount of customary equipment is doubled in that two concrete Spreaders, two finishing machines, two longitudinal floats, twice as many forms, twice as much water supply, etc., are required to lay the same amount of concrete. Also, a long length of bottom course of concrete is exposed and subjected to the same breakdown and weather hazards as mentioned above in connection with the use of a single mixer.
Accordingly, the principal object of this invention is to provide apparatus adapted to permit the pouring of a concrete slab to its full depth and to insert reinforcing mesh therein to a predetermined depth within the poured slab.
Another object of this invention is to provide apparatus for placing reinforcement mesh at a predetermined depth within a poured and crowned slab of concrete.
Still another object of this invention is to provide vibratory apparatus adapted to place reinforcement mesh at a predetermined depth within a poured concrete slab, said apparatus comprising individual and separately supported elements which may be individually adjusted to conform with the crown of the slab.
In accordance with this invention, there is provided apparatus for positioning reinforcement mesh in a poured concrete slab comprising a wheel-supported frame which may be moved along the form structure, a plurality of aligned vibratory units having horizontal sliders mounted thereon and adapted to extend into a poured concrete slab-to a predetermined depth, a rotatable lifting apparatus extending across said frame over said units, adjustable links suspending said units from said rotatable members for positioning said units to conform with the crown of said concrete slab and stop means operatively associated with the said lifting mechanism and said frame for determining the exact depth of penetration of said slider units within said concrete.
The full nature of the invention will be understood from the accompanying drawings and the following description and claims:
Fig. 1 is a top plan view of the apparatus embodying this invention;
Fig. 2 is a front elevation of the apparatus; and
Fig. 3 is a partial cross, section taken on line 33 of Fig. 2 and illustrating the suspension mechanism for the vibratory mesh-placing units.
Referring to the drawings, the apparatus for placing reinforcement mesh in poured concrete comprises a rectangular frame having end members 10 and side members 11. Extending between the end members 10 are two spaced rotatable shafts 14 and 15, rotatably mounted at their respective ends in sockets 16. porting hangers 17 and 18 for shafts 14 and 15 are provided on the cross beams 19 and 20.
A plurality of individual vibrating units 22, 23, 24, and 25 are suspended from the shafts 14 and 15 by means of forward links 27 and adjustable rear links 28, the adjustable links comprising turnbuckles pivotally connected between levers 29, fixed to the rear shaft 14, and supporting arms 30 connected to the main body 31 of each vibratory unit,
Intermediate sup-,
The forward links 27 are pivoted between the arms 32 fixed to forward shaft 15 and the supporting, arm 33 fixed to the main body of each vibratory unit.- The lower ends of each link 27 are provided with a slot' concrete.
3 35 which receives a pivot pin or bolt 36, thereby providing a certain degree of play between the vibratory unit and the forward supporting link. Pull-rods 26 may be secured as illustrated in Fig. 3 between any suitable frame member and each end of each vibratory unit such as unit 25.
In order to lift and lower the vibratory units, the shafts 14 and 15 includes two pairs of crank arms 38 coupled in any suitable manner to hydraulic jacks 39, pivotally mounted as at '40 tosu'pporting plates 41 'b'oltedo'r otherwise fastened to the channels 19 and 20. When the hydraulic units39-are operated, the cranks 38 rotate shafts 1 14 and 15 to lift or lower the vibratory units. The units may be adjusted upwardly or downwardly by means of the adjustable turunbuckles 28, each unit being adjusted in height to conform to a specified degree of crown in a highway being poured.
In order to provide lowering of the vibratory units 'to a. pre-set depth, stop members'42 are fixed to channels '19 in a position to cooperate with lever members 43 and 44 mounted on and fixed to shafts 14 and 15, respectively.
Each lever arm 43, 44 is provided with adjustable screws 45 and 46 so that when the hydraulic units 39 are operated to'lower the vibratory units, screws 45 and 46 move into engagement with the stops 42 to limit the downward movement. By adjusting screws 45 and 46, the'lowermost position of the vibratory units can be established and this depends on specified crown of the slab and to some extent on the specified depth to which reinforcement is to be set within the poured concrete.
For pushing the mesh downwardly into the concrete,
each of the vibratory units 22-45 is provided with a plurality of spaced slider elements 48, the forward ends 49 of which may have a curved profile adapted to engage This invention also provides apparatus for placing reinforcement mesh in poured'concrete even though the concrete surface must have a crown. This result is obtained by providing adjustable supports for the mesh vibrating units which may be utilized for supporting each of a plurality of vibrating units at a predetermined level.
The invention claimed is:
1. Apparatus for positioning reenforcernent mesh in a poured concrete slab comprising a supporting vehicle movable over said slab, a front and a rear rock shaft mounted in spaced parallelism transversely of and supported by said vehicle, a vibratory unit disposed beneath said shafts, horizontally disposed sliders extending down- 7 wardly from said unit in alignment with the direction the reinforcing mesh 50 for riding over the mesh and.
pushing it downwardly.
Each vibratory unit includes a conventional electrically driven vibrator 51 so mounted as to provide vertical vibration to each unit.
In order to provide forward motion of the vibrating units, the frame 10--11 is provided with wheels 53 which are driven by means of a shaft 54 suitably connected to a driving engine 55 and to at least one pair of wheels 53 through the sprockets 5657 and chain 58.
For operating the hydraulic lifting units 39 a hydraulic pump 60 may be connected to engine 55 and to the hydraulic units 39 by means of conventional hose connections 61.
The electrical vibrator units 51 may be coupled to a motor generator 62 by means of the conductors 63.
In operation, the adjustable vibrator unit supporting 7 links 28 may be adjusted to support the ends of the vibrator units in such a way as to conform with the specified crown in a highway. Also, the screws and 46 in the levers 43and 44 may be adjusted to hold the vibrator units at the proper level such that the sliders 48 penetrate the concrete to the depth at which it is desired to place the reinforcement mesh 5 0.
After initial adjustment of the respective positions of the vibrating units, they may be lowered or lifted by means of the hydraulic units 39 controlled from the control levers of the hydraulic pump 60. With the motor 55 driving wheels 53 slowly in a -forward direction and with the generator 62 operating the vibrator motors 51, a concrete reinforcement mesh may be placed on top of poured concrete and vibrating action of each of the vibrating units 2L-25 gradually moves the mesh 50 downwardly into the concrete to a predetermined level.
From the foregoing description, it will be apparent that this invention provides apparatus which materially reduces the number of machines required to construct a reinforced concrete highway. This isbecause of the fact that 'the concrete maybe poured to its full depth by a single concrete mixer after which reinforcement mesh y Placed at a pe ified d p within the p red of travel of the vehicle to project into said slab, front linkage means pivotally connected between the front por tion of said vibratory unit and said front rock shaft, said linkage means including a free floating connection for permitting vertical movement of said vibrator-y unit, a rear linkage means pivotally connected to the rear portion of said vibratory unit and said rear rock shaft, said 'rear linkage means establishing a pivot for vertical rocking of said unit, means for rocking said shafts to elevate and lower said vibratory unit within predetermined limits, and draft means connected at one end .to said vibratory unit andat its opposite end to said supporting vehicle forwardly of said unit, whereby said vibratory unit rocks on said rear linkage means in a vertical direction.
'2. Apparatus for positioning reenforcement'mesh in a poured concrete slab comprising a supporting vehicle movable over said slab, a front and a rear rock shaft mounted in spaced parallelism transversely of and supported by said vehicle, a pair of arms projecting laterally and forwardly from said front shaft, a pair of similar arms projecting laterally and rearwardly of said rear shaft, a vibratory unit disposed beneath said shafts, 'horizontally disposed sliders extending downwardly from said unit to project into said slab and aligned with the longitudinal axis of said vehicle, a pair of adjustable supporting links pivoted at their upper ends to said rearwardly projecting arms and pivotally' connected at their opposite ends to the rear portion of said vibratory unit,
tative'movement of each of said shafts in one di-rection, and a longitudinally adjustable pull rod pivotally connected at one end to the forward portion of said vibratory unit and at its opposite end to'said supporting vehicle forwardly of said unit.
3. Apparatus for positioning reenforcementmesh in a poured concrete slab comprising a supporting vehicle movable over said slab, a front and a rear rock shaft mounted in spaced parallelism transversely of and'supported'by said vehicle, a lever projecting radially of each rock shaft, a pair of arms projecting laterally and forwardly from said front shaft, a pair of similar arms projecting laterally and rearwardly of said rear shaft, a vibratory unit disposed beneath said shafts, horizontally disposed sliders extending downwardlyjfrom said unit to project into said slab and disposed in parallelism with the longitudinal axis of said vehicle, a pair of adjustable supporting links pivoted at their upper ends to said rearwardly projecting arms and pivotally connecte'dat their opposite ends to the rear portion of said vibratory unit, a pair of links pivotally connected at their upper ends each to one of said forwardly projecting arms, a pin and slot'connection between the lower endsof said 'for-.
ward links and the forward end'of said vibratory unit, means for rocking said shafts, a stop element inthe path of ement of each said lever to limit the rotative move- 5 ment of each of said shafts in one direction, and a longitudinally adjustable pull rod pivotally connected at one end to the forward portion of said vibratory unit and at its opposite end to said supporting vehicle forwardly of said unit. 5
References Cited in the file of this patent UNITED STATES PATENTS 2,029,659 Greiner Feb. 4, 1936 10 6 McCrery May 26, 1936 Day Apr. 13, 1937 Baily Oct. 5, 1937 Baker June 10, 194] Jackson Sept. 2, 1941 Jackson Oct. 14, 1941 Jackson Nov. 11, 1947 Baltes Nov, 30, 1954 Jackson Nov. 15, 1955
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US557128A US2950659A (en) | 1956-01-03 | 1956-01-03 | Apparatus for positioning reinforcement mesh in concrete |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US557128A US2950659A (en) | 1956-01-03 | 1956-01-03 | Apparatus for positioning reinforcement mesh in concrete |
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US2950659A true US2950659A (en) | 1960-08-30 |
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US557128A Expired - Lifetime US2950659A (en) | 1956-01-03 | 1956-01-03 | Apparatus for positioning reinforcement mesh in concrete |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3083621A (en) * | 1958-08-06 | 1963-04-02 | Republic Steel Corp | Machine for laying reinforcing bars in concrete pavement |
US3181442A (en) * | 1960-04-05 | 1965-05-04 | Jurg H Brigel | Vibrator for compacting the bed and surfacing of roads |
US3222749A (en) * | 1963-01-25 | 1965-12-14 | Wilson E Haas | Building construction |
US3260177A (en) * | 1964-02-24 | 1966-07-12 | Rex Chainbelt Inc | Laying reinforced concrete pavement |
US3334559A (en) * | 1965-06-09 | 1967-08-08 | Ivan J Taylor | Method and apparatus for positioning reinforcement bars in concrete pavements |
US6394410B1 (en) * | 2000-07-06 | 2002-05-28 | Randy L. Thompson | Adjustable reinforcement insertion guide for a slip form concrete barrier mold |
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US2029659A (en) * | 1934-10-20 | 1936-02-04 | Buffalo Springfield Roller Co | Road roller |
US2042156A (en) * | 1933-12-29 | 1936-05-26 | Blaw Knox Co | Tamper for concrete road finishing machines |
US2077356A (en) * | 1934-11-21 | 1937-04-13 | Internat Vibration Company | Method of and apparatus for laying reenforced concrete |
US2094910A (en) * | 1933-08-17 | 1937-10-05 | Baily Robert William | Apparatus for compacting and surfacing plastic material |
US2245426A (en) * | 1938-12-19 | 1941-06-10 | Robert D Baker | Paving machine |
US2254743A (en) * | 1939-08-11 | 1941-09-02 | Jackson Corwill | Concrete placement apparatus |
US2259110A (en) * | 1939-11-30 | 1941-10-14 | Jackson Corwill | Concrete placement apparatus |
US2430816A (en) * | 1944-06-30 | 1947-11-11 | Jackson Corwill | Machine for placing concrete and other materials |
US2695552A (en) * | 1950-08-05 | 1954-11-30 | Alphonse J Baltes | Apparatus for concrete finishing |
US2723608A (en) * | 1951-10-15 | 1955-11-15 | Jackson Vibrators | Paving machine or compacting machine |
-
1956
- 1956-01-03 US US557128A patent/US2950659A/en not_active Expired - Lifetime
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2094910A (en) * | 1933-08-17 | 1937-10-05 | Baily Robert William | Apparatus for compacting and surfacing plastic material |
US2042156A (en) * | 1933-12-29 | 1936-05-26 | Blaw Knox Co | Tamper for concrete road finishing machines |
US2029659A (en) * | 1934-10-20 | 1936-02-04 | Buffalo Springfield Roller Co | Road roller |
US2077356A (en) * | 1934-11-21 | 1937-04-13 | Internat Vibration Company | Method of and apparatus for laying reenforced concrete |
US2245426A (en) * | 1938-12-19 | 1941-06-10 | Robert D Baker | Paving machine |
US2254743A (en) * | 1939-08-11 | 1941-09-02 | Jackson Corwill | Concrete placement apparatus |
US2259110A (en) * | 1939-11-30 | 1941-10-14 | Jackson Corwill | Concrete placement apparatus |
US2430816A (en) * | 1944-06-30 | 1947-11-11 | Jackson Corwill | Machine for placing concrete and other materials |
US2695552A (en) * | 1950-08-05 | 1954-11-30 | Alphonse J Baltes | Apparatus for concrete finishing |
US2723608A (en) * | 1951-10-15 | 1955-11-15 | Jackson Vibrators | Paving machine or compacting machine |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3083621A (en) * | 1958-08-06 | 1963-04-02 | Republic Steel Corp | Machine for laying reinforcing bars in concrete pavement |
US3181442A (en) * | 1960-04-05 | 1965-05-04 | Jurg H Brigel | Vibrator for compacting the bed and surfacing of roads |
US3222749A (en) * | 1963-01-25 | 1965-12-14 | Wilson E Haas | Building construction |
US3260177A (en) * | 1964-02-24 | 1966-07-12 | Rex Chainbelt Inc | Laying reinforced concrete pavement |
US3334559A (en) * | 1965-06-09 | 1967-08-08 | Ivan J Taylor | Method and apparatus for positioning reinforcement bars in concrete pavements |
US6394410B1 (en) * | 2000-07-06 | 2002-05-28 | Randy L. Thompson | Adjustable reinforcement insertion guide for a slip form concrete barrier mold |
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