US1539145A - Machine for constructing reenforced-concrete roads - Google Patents

Description

May 26, 1925 1,539,145 J. F. RQBB MACHINE -FOR CONSTRUCTING REENFORCED CONCRETE ROADS Filed March 22, 1921 4 Sheets-Sheet l 8 wwvltoa,

Join]? 1? 055 May 26, .1925.

J. F. ROBB MACHINE FOR CONSTRUCTING REENFORCED CONCRETE ROADS 4 Sheefs-Shet 2 Filed March 22, 1921 Wibcess May26. 1925.

4 sheelifs-sheet 5 Filed March 22, 1921 v May 26, 1925.

J. F. ROBB MACHINE FOR CONSTRUCTING REENFORCED CONCRETE RCADS Filed March 22, 1921 4 Sheets-Sheet 4 Patented Ma 26, 1925.

' UN TED/ FATE T JOHN 1*. ROBE, or CLEVELAND HEIGHTS, 01110, assrenon, 'BY ASSIGNMENTS,

TO KOEHRING COMPANY, or MILWAUKEE; WISCONSIN, acomeoaarron or wis- CONSIN'. y

MACHINE FOR. coNs'rRUcmme nEnNroRcnn-oonean'rn nouns.

Application filedMareh 22, 1921. Serial No. 454,535.

To all whom it may concern:

Be it known I, JOHN F. Rose, a citizen of the United States, residing at Cleveland Heights, int-he county of Cuya hoga and State of Ohio,h ave invented certain new and useful Improvements in- Machines for Constructing Reenforced-Concrete Roads (Case No. l), of which the following is a specification.

With a view to reducing :to' a minimum the longitudinal cracking of concrete roads which. are being used very largely today for the purposes of road construction, engineers are requiring theemployment of reenforcement for the concrete. ,In practice it has been found that the use of metal reenforcing for road construction is advantageousi'or maintaii'iing the road in a corn dition of highest etliciency, and to eliminate the defective cracking or breaking of the and base layer of concrete amsurface layer of concrete which unltes with the base layer a in the well known: manner.

The use of manual labor inhandling the metal reenforcingfor the road is something desired to be obviated in the practical em: bodiment of my present invention; 71th the foregoing object in view .I have designed a machine which is capable of mechanically handling the metal reenforcing, whether the same be used in sections of predetermined size, or unreeled from a baleof suitable dimensions to properly correspond with the requirements of the road dimensions.

My machine takes anumber of different embodiments in practice. In one instance it maybe combined as apart of] the payer of the typegenerally shown 111 United States patent to Lichtenberg No. 1,141,470, issued June 1, 1915. According to this construction. the reenforcement handling machine would progress with the paving machine by which the concrete is distributed, and I utilize; the paving machine as a crane for performing certain preliminary operations of gettingthe reenforc'ing materialinto posit'ion ready to be dispensed by the machine pro'yided for-this purpose. a

A "further embodimentof' the machine of i the invention is ;todesign the/(same as a Slf-COfltzlllld power driven machine adapted to travelupon the road forms as rails,

and equipped with suitable pulling devicesf to pull the reenforcing into place upon the base section of concrete, which is ofcourse laid prev ous to the placing of the reenforcemenninpositionfor use. *If the Ifeen- Y forcement is handled in bales, I contemplate the utilization of suitable straightening means therefor, together with, cuttinghdevices'by which the reenforcmg s cut in proper lengths to be la d down upon; the

base section. or layer of concrete, prelimif nary. to the distributing thereon of the sur face layer or section.

invention may take other forms than thoseillustra-ted for the purposes of giving a general idea of the scope and. usefulness. thereof, in this specification, and in the an-' nexedj drawings? 7 v 2 Figure 1- is a plan view showing a road inproce'ss of "construction, an industrial rail way at one side thereof for the supplying of materials, a pavingmachine by which. the concrete ismixed and'distributed, and the wayinwhich the reenforcement in flat Figure 2' is a perspective View showing the end portion of the boom of the payer, and a quantity of reenforcing sheets supported 'by a platform and illustrated as when being lifted by the boom acting as a sort of derrick, toshift the r'eenforcing material from one side of the-road into a position in which itis supported on the carrier of the dispensing machine; Figure 3 is-a plan View of the platform and suspension cables as shown in ure 2; y 7

Figure 4 is a side View of, the machine shown in Figurel; j Figure 5 isa plalrview of the reenforce ment dispensing machine showing more sheets may be supplied to'the site where it is to be used;

clearly the manner in which the pull cables are connected to pull a section of re-enforcement into place upon the site where it is to be used;

Figures 6 and 7 are modified adaptations of the invention being shown in side elevation and section, respectively;

Figure 8 is a view showing more clearly the shearing knives for cutting the reenforcement sections from the halo when the reenforcement is supplied in bales for the dispensing machine. i

Generally speaking, the machines of the invention in their Various embodiments are rather simple in construct-ion. In so far as the reenforcement dispensing mechanism is concerned. the same is'mounted upon a carrier capable of operating on the road forms at opposite sides of the road, as rails. This carrier supports the sheets of reenforcing when they come flat. or it is con structed to support the reenforcement in a bale. if the baled type of this fabric is utilized. 7

lVith the above general statement reference is made to Figures 1 and t particularly, in which A denotes generally a partially illustrated machine of'the type-of the pre- 'iously identified Lichtenberg patent. This machine has a boom B on whichtraverses the distributing bucket C. The machine A operates on the subgrade 1, or over said subgrade, as desired, and progresses in the direction of ti e arrow in the road building operation. In rear of said machine is the metal reenforcement dispensing mechanism which comprises a carrier 2 having wheels 3 adapted to travel on the road forms I which act as rails under these conditions. At its rear end carrier 2 is adapted to support the plat-form 5 on which the reenforcement arranged in superposed sheets or sections of required size is disposed. The front portion of the carrier 2 is largely an open frame as shown in Figure 5. The paving machine A is equipped with a special winding drum 6, power driven, like the other driven operating devices of said machine, from the engine with which the machine A is equipped. Suitable draft connections are provided bet-ween the rear end of the truck of the machine A and the front end of the carrier '2. A pull cable 8, to which the pulling hooks 9 (see Figure 5) are attached is adapted to wind about the drum 6 on the machine A, and unwind therefrom. The hooks 9 are adapted to be engaged with the front edge of the top section of the metal reenforcement on the carrier platform 5, said reenforcement being designated 10. The operator of the machine A. then causes the drum'G to be driven and the said engaged sheet of reenforcement 10 is pulled into place upon thebase layer of concrete,

designated 11, which has been preyiously disposed upon the subgrade 1. .The length of the carrier 2 may be as desired so that several sections of the reenforcement 10 may be pulled into position at a time.

lo facilitate the placing of a large quan tity of reenforcement 10 upon the carrier 5, I preferably modify the construction of the paver A to render the boom 13 thereof a sort of crane or derrick device. 'In other words, I utilize a power driven drum 12 on the upper part of the frame work to actuate the cable 13 for raising the boom 13. I utilize also a power driven gear 14 to operate the worm shaft 15 by which the worm gear 16 fixed to the vertical axis of the boom B, may be operated, to shift said boom in a horizontal plane.

lVith the above described controlling means it is evident that when a quantity of the reenforcement 10 is at one side of the road, as shown in Figure 1, a hook 17 on the end of the boom B may be engaged with the suspension cables 18 of the platform 5 and said platform and reenforcement may be lifted, carried laterally, and readily placed in position on the carrier 2-. The hook '17 is swivclled on the boom B.

If desired. the sides of the carrier 2 may have depending brackets 19 of an adjustable type to assist in supporting the reenforcement at a proper predetermined position so that it will be imbedded a proper distance in the concrete forming the final road structure. As a general thing, however, the brackets 19 may be dispensed with and the base layer of concrete relied upon to reenforce the concrete properly.

In Figure 6 the reenforcement dispensing machine is a self-contained construction. In this instance the carrier 2 is adapted to be driven by itsown motor 20 and has a winding drum 21 with which the pull cable 22, for pulling the reinforcement sections to position on the subgrade, is attached.

In Figure 7 a carrier 2* is illustrated as being supplied with supporting standards 23 slotted to receive the supporting shaft 2 L by which a bale of reenforcing is to be carried. The reenforcing 10 is fed from the bale to the straightening rolls 25, and then between knives 26 to the base layer of concrete on the road. An operating cable 27 is connected with the upper knife 26 and with a motor driven part of the machine, not illustrated, to operatethe knives to cut the reenforcing with a shearing action. In this construction I use a suitable pull cable 28 for unreeling the reenforcing from the bale 10 and pulling the same into position as well as thru'the space between the straightening rolls 25. Obviously the bales of reenforcing designated 10 may be liftedby the boom 13 of the machine A by simply engaging suspension cables with the ends of the shaft 24: and with the hooks 17. In

this way, the boom Bis utilized readily for handling the heavy bale of reenforcing, in

the same way it handles the reenforcingf when'disposed '111 a large quantity or supertact, a single man can practically attend to.

the handling of thereent'orcement and by no means will the operation require all of his time. f

Having thus described my invention, what I claim as new and desire to obtainby Let ters Patent, is:

l. A machine ot the class described comprising a carrier adapted to travel over a road bed, a support upon said carrier for a quantity of reentorcing material so that the latter may be dispensed for use in the road construction, a motor, and equipment operable trom the motor and attachable to the reen'forcement for pulling the latter into place upon the portion of the road where it is to be used.

2. A construction substantially as claimed in claim 1 wherein the power means comprises a power driven winding drum, a cable adapted to wind on said drum, and means for connecting said cable with the reenforcing material upon the carrier. i

' 3. In combination, a paving machine comprising a motor propelled support, boom and bucket mechanism thereon, a carrier to support reeniorcing material, means on said motor propelled support adapted to be connected with said reent'orcing material on the carrier to pull said material into place over the concrete to be reenforced and beneath the bucket of the boom and bucket mechanism.

in claim 1 combined with means for transferringthe support upon the carrierto said carrier from a place at which the support and the reentorcing thereon may be picked up, the last mentioned means constituting a distributor. I

5. In combination, a power driven maat. A construction substantially as claimed chine adapted to travel over a subgrade of i the road to be laid, a carrier adapted to be propelled by said power machine and a support for a quantity of metal reent'orcing adapted to be received by said carrier, and

a concrete distributor on said power machine adapted to lift said support from a place where it may be picked up, and trans fer the same with the reentorcement thereon to a proper place on thecarrier;

6. A machine substantially as claimed in claim 1, combined with equipment on the boom for hoisting a supply quantity of reenforcing material to position on thecarrier therefor, and means for operating the boom for the last named purpose.

7.21m a, machine of the class described, a portable support, means for supporting concrete reentorcmg-ln a quantlty upon the support, andmeans to pull the reenforcing in place over a road bed as the support.

travels thereovenandto out the reenii-orcing in suitable lengths for deposit upon concrete on the road. i

8. In amachjine of the class described, a portable support, means forsupporting concrete reentorcing in a quantity upon the support, means to pull the reentorcing in place over a road bed as the support travels thereover, straighten it as it is so pulled,- and means to cut the reenforcing intosuitable lengths.

In testimony whereof I ZlfllX my signature.

JOHN F. ROBB.

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