US1424169A - Machine for laying reenforcing for concrete pavement - Google Patents

Description

mu 1. X E E M 3 EN EN Q v 0 90 S \L E 1 P m 1 d S mayo-J W 6 a a m v w M )m 1 E A. Momma. MACHINE FOR LAYING REENFORCING FOR CONCRETE PAVEMENT.

APPLICATION FILED MIN/13,1921.

. P. A. KOEHRING.

MACHINE FOR LAYING REENFORCING FOB CONCRETE PAVEMENT.

Patented Aug. 1 1922.

3SHEETS-SHEET 2.

APPLICATION FILED MAY 13, I921.

P. A. KOEHMNG.

G REENFORGING FOR GONCRETE PAVEMENT.

- MACHiNE FOR LAYIN Fmmted Aug. 1 1922..

3 SHEETS-611E] 3.

APPLICATION FILED MAYi3, 1921.

,wuIli.

PHILIP A. KOEHRING, OE" BL'EILWl-KUKEE,

incense,

MENTS, TO KOEHRIDTG CUIlfilPiltNY, 01 OF WISCONSIN.

VII$GONSIIEL ASSIG'NQE, BY MESNE ASSIGN- MILWVTAUKEE, 'WKSQONSIN, A COJEL'EDRATEON MACHINE FOR LAYKNG' REENFGRCING FUR CQNCEE'EE EPAVEMENQ.

Application filed tra is,

To all whom it concern Be it known that I, PHILIP A. lionnninc,

a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certa n new and useful Improvements in Machines for Laying Beenforcing for Concrete Pavement, of which the following is a speci-'.

lication.

In view of the contemplated use of metal reenforcing in the building of concrete pavements and roads, to a greater extent than has heretofore been incident to such construction, it is the object ofthis invention to provide a machine capable of facilitating the operation of supplying the reentorcing material to the portion of the road upon which it will be used.

The machine which I have designed for the above purpose is of low construction so it will not interfere with distribution of concrete over the same, and is intended to handle the metal reenforcing largely as it is made today, namely in bales of a certain width, provisions being'made for supporting the bale of the reenforcin'g material conveniently at one side. of the subgrade for theroad bed, upon a carrier which is adapted to travel over the subgrade, preferablyupon the road forms or rails which are now commonly used at opposite sides of the road bed where the concrete is being laid' The method of supporting the reenforcing material and dispensing the same to feed it transversely of the road subgrade upon a layer of the concrete which'is first laid, is

' advantageous in that it enables the material such a way that the usual to be handled by attendants located at one side of the road subgrade, and of greater importance the reenforcing is supplied in distributing vices for the concrete may operate above the machine doing the work.

Furthermore the supporting means for the reentorcing and the operating means by which it is fed into place are so arranged not to interfere in any way with the dis tribution otlthe concrete aggregates on top of the reenforcing, by the ordinary types ct distributingmachines commonly in use day and lrndwn as pavers,

Still another object of my invention has specification of Letters Patent.

Patented Aug it, twi 1921. Serial in. 469,297. I

been to design my.machine not only for handling the metal reenforcing but with equipment for striking off the concrete aggregates which comprise the first layer or section of concrete uponwhich the re'eni orcing is laid, preliminary to distributing thereo'ver the top section or layer of aggregates, the reenforcing being imbedded of course, between the two layers.

Additionally, my invention comprises ready means for cutting the reent orcing in sections of the desired length corresponding to the width of the road and I also provide special devices for temporarily supporting the reenforcing above the road sub rade, and the first layer of concrete distributed, to be thereafter dropped into position for the distribution thereover of the top layer of concrete.

Of course the primary result obtained by the employment of my machine is the elimination of the use of hand labor in laying the reenforcing in place, and the machine is preferably propelled by connection with a payer or miner which may pull it along, as said machine progresses over the, subgrade in the road lhying operation;

Referring to the accompanying drawings a typicalcon'struction of my invention is illustrated and will'be understood in connection with the following description, and the annexed drawings, in which:

Figure l is the plan view of the machine.

Figure 2 is a'rear elevation.

Figure 3 is a detail view showing the method oi supporting the cutter device which travels transversely of the carrier, and longitudinally oi the road subgrade.

Figure lis a transverse sectional view through" the front portion of the machine and illustrating the manner in which the section of reentorcing to be dropped is pre liminarily suppdrted above the concrete already laid, dotted lines illustrating the vertical positions ot' the supporting plates and manner in which the reenitorcing is deposited by operating said plates. I

Figure 5 is a transverse view of the machine illustrating the mounting of the operating levers by which the reentorcing' supportine pl; to drop a sec non of the reenforcingonto the "Bil its

a are actuated simu'ltaneously clearly one of the guides for guiding the.

reenforcing onto the supporting plates Figur 7 is an enlarged detail sectional View showing more clearly the mounting of the carriage wheels and the support of the strike-off board.

In carrying out the invention hereof, and referring to the drawings, a low wheeled support or carrier A is' utilized, the same Comprising front, rear and side frame bars,

the side frame bars being equipped with wheels 1 at opposite ends, which wheels are adapted to travel upon the road. rails or forms B'atopposite sides of the road subgrade. The concrete is laid upon the sub grade between said road forms or rails B, in the well known manner. If desired, the front and rear frame bars or the carrier A may be supplied with provi'sionsfor their adjustment to enable the carrier to operate upon road rails B separated a greater or less distance from one another, dependent upon the width of the particular road to be laid. At one side thereof, the carrier A.

is providedwith a pair of inclined supporting arms C, at the upper outer ends of which are provided the bearing brackets 2 which receive and support a shaft 3 on. which are mounted centering cones 4- for a roll of reenforcing fabric of any suitable kind useful for, the purposes of concrete road reenfoncing. The reenforcing of the roll, which is designated 5 is adapted to be fed from the top of the roll downwardly between three feeding and straightening rolls indicated at 6 and 7, the roll 6, being uppermost, and adapted for adjustment, preferably. From the rolls 6 and 7 the reenforcing-fabric or material is fed over a pair of channels 8 onto supporting plates 9, the latter .temporarily designed. to support a section of the reenforcing above the road and facilitate its: movement into such position Q'as it is fed from the'straightening and feeding rollers 6 and 7. When a sufiicient quantity of the reenforcing, which is designated 10 has been fed upon the plates 9 to constitute a section equal to the width of the road, said section must be cut off from'the main quantity of reenforcing supplied from the roll 5. For this purpose I utilize a cutter 11 seen best' in F lgure 3 as being carried by thelower' end of a pivoted lever 12. The lever'12 is pivoted to a trolley or wheeled support 13, mounted between the channels 8 before mentioned, the wheels of the trolley operating in said channels as a convenient method of supporting the cutting devi e. Since the channels 8 are arranged transversely of the carrier A, and ofthereinforcing 10 fed from'the roll 5, it is evident that the lever 12 may be actuatedpivotallyto cause the cutter 11 to cut the reenforcing, as anincident to the shifting of the lever crosswise of the machine and longitudinally of said channels 8.

After the desired section of reenforcing has been caused to move over the subgrade upon which has been laid a section or first layer of concrete, and cut off from the main rollor supply of the reenforcing, said sec tion as shown in full lines to a certain extent in Figure 4, will be supported upon the plates 9, a few inches above the concrete already laid. Thereafter it is contemplated to drop the cut section of reenforcing upon the concrete for which purpose I have mounted the plates 9 in a movable manner, each plate being pivotally connected with the adj aoent front or rear frame bars, as the case may be, by means of pivots let which are disposed longitudinally of the plates intermediate of the under sides thereof.

As a suitable operating means the-devices illustrated in Figure 5 are employed for shifting the plates 9 from the horizontal positions in which they .support the reenforcing 10 to vertical positions in which they permit the depositing or dropping of the reenforcing section upon the laid concrete. The devices just referred to comprise levers 15 rigidly connected with brackets 16 on the uppersides of the plates 9. Each lever is connected by a link 17 with an intermediate toggle lever 18 pivoted to the middle portion of the side frame bar remote fromthat adjacent to which the roll 5 of reenforc'ing is located. The movement of either lever 15 by an attendant who may be standing atthe front orrear portion .of the machine will cause the simultaneous movement of the plates 9, to and from the vertical positions illustrated in Figure fl, the normal positions of said plates being, of course, horizontal.

- I utilize spaced guides seen best in Figures 1 and 6, and designated 19 toass ist in feeding the fabric properly from the roll 5 to the sprocket wheel upon the shaftjwhich supports one of the rolls 7. If desired, the two rolls 7 will be connected together by a suitable sprocket chain 24:. The operating means just described may be duplicated for both ends of the rolls 6 and 7, though a single operating means should suffice ordinarily. y

I have already noted that I contemplate utilizing my reenforce laying machine as a strike-off machine for the preliminary layer paver l machine or pav 'ployed today.

or? concrete, upon whic l ing is to be deposited, the front one off the :tran' rier it. is co ripped with template 26 a d the la i pose just retort-ed to. supported adjustably concrete at ditl'crent quir'ed with View to ot' the layer l or e lt is contemplated not the machine above described shall he Cllilwl) I 'Bl d W the subgrade but which i h trated since the same is a conventional chine commonly use and Well known toda For the above purpose utilize any s1 able dra'tt means conventionally illustrated at 27 as a draft barhaving the roller :28 engaged with a pulling cahle dralit bar 2 ner to the rear end of the paver, o l S111 be of the t: 1e utilizing a chute for distriouting the cone or aboom and bucket tor the same pu "poi c, the latter being the customarily used distrihutii e o- It is notable that my carrier It is con structed of a very low fabric t my reentorcinglaying machine, in an evident manner. I v

.tn the general operation of my machine,

the same is connected with the travelling mixer or payer, in rear of the latter and more or less adjacent to the concrete distributing means of said paver. The paver tr-av els forward on the subgrade and my machine travels over the road bed upon the road rails at the some time. As my machine moves forward thestrike-olt board 26 strikes ott the-concrete from the first layer or section deposited, and during the travel of the ma chine the attendants operate the same to teed a section oi reenitorcing over the laid concrete out oh? the section 'deposit said section of recntorcinlg upon the concrete, and contlnue this operation at each proper advance of the machine as necessary. tileanwhile the distributing bucket, of

the paver is free to operate over the subgrade and distributc'the concrete upon the latter, and upon the reenter-sing when deposited. Atno stage of the opera tions is it neressary to manually handle the reentorcingg; except perhaps to facilitate the entrance of the same between the straightening and feeding rolls 6 and 7.

not illus- 4 may be attached in any suitable ma" ed Words and supported low upon the roadrails so ving thus described my invention What claim as n and desire to secure by Lettors l entis:

l. in a machine itoinmechanlcally placing sections ct reenter-clog upon concrete in concrete road constructiom the combination or a 'ca-rriev adapted to operate over the subgradc means for feeding the reentorcing trom the machineover andupon laid concrete, and a strilre ol'l carried by said machine to strike oft the preliminary layer of concrete upon which the reentorcing is to he deposited.

. in a iachine lor mechanically placing 4 reeiorcing upon concrete roads the comgrade in advance ot the machine and upon which the section of reen'torcing to be deposited. i

h a machine for mechanically placing reenitorcing, upon concrete roads in their construction, the combination of a carrier adapted. to travel over the subgrade oi the road, means tor supporting a quantity oi reeniorcing upon the machine atone side ot the road suhgrade, and means for feeding a section of the reenforcing from said quantity over and upon the subgradc.

5. machine substantially as claimed in claim 4t combined with a travellingcutter adapted to operate across. the section of reenttorcing to sever the same irom'the main quantity from which said section is'supplied.

c. machine substantially as claimed in claim. a equipped with supporting means for holding the quantity of reentorcing in rolled form, devices for straightening the reenforci fed over and upon the subgrades preliminary layer of concrete and a cutter for severing a section oi the-reentorcing and the reentorcing and ply or re'eniorcing, means for feeding said said reentorcing over the carrier and transversely .ot the road bed or subgrade, devices for temporarily supporting the reenforcing above the subgrade' and above a preliminary r ion of a carrier adapted to operate over 'too layer or concrete deposited thereon, and

means for operating said devices to drop the reenforcing from its position of temporary support down upon the concrete on the sub grade;

8. A machine substantially as claimed in claim 7 combined with a cutter adapted to sever a section of the reenforcing from the source of main supply, and'a travelling support for said cutter operating on thecarrier.

9. Means substantially as claimed in claim 7 wherein the means to temporarily support the reenforcing above the subgrade com prises plates movably mounted upon the front and rear portions of said carrier, and

lever mechanisms for simultaneously actuating said plates to cause the same to release the reenforcing and permit deposit of the latter subgracle concrete.

10. In a machine for mechanically placing reenforcing upon concrete in 'concrete road construction the combination of a carrier comprlslng a relatively. low fabricated frame, means on said carrier for supporting a supply for reenforcing at one side of the road subgra de, means whereby the'carrier mayitself travel over the road subgrade, and means for feeding the reenforcing over the carrier and upon the subgrade concrete.

12. A machine for laymg concrete reenforcing. comprising a carrier of low construction adapted to travel over the road subgrade, and reenforcing dispensing means on said carrier operating to supply reenforcwhich the ing transversely of the subgrade for deposit on concrete on the said subgrade.

13. A ma'chine'as set forth in claim 12, combined with a support fora supply of reenforcing disposed at one side of the carrier and mounted thereon.

In testimony whereof I afiix my signature.

PHILIP A.. KOEHRING;

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